Loading...
HomeMy WebLinkAboutResolution 2022-100 Adopting the 2022 Land Use Assumptions, the 2022 Streets Facilities Infrastructure Improvements Plan MARANA RESOLUTION NO. 2022-100 RELATING TO DEVELOPMENT; ADOPTING THE 2022 LAND USE ASSUMPTIONS, THE 2022 STREETS FACILITIES INFRASTRUCTURE IMPROVEMENTS PLAN, THE 2022 PARKS INFRASTRUCTURE IMPROVEMENTS PLAN, THE 2022 WATER FACILITIES INFRASTRUCTURE IMPROVEMENTS PLAN, AND THE 2022 WASTEWATER FACILITIES INFRASTRUCTURE IMPROVEMENTS PLAN SUPPORTING DEVELOPMENT IMPACT FEES FOR STREETS, PARKS, WATER, AND SEWER WHEREAS the Town has commissioned studies to update its development impact fees authorized by the Arizona municipal development impact fee enabling statute, A.R.S. § 9-463.05,to assess and collect development impact fees to offset costs to the Town associated with providing necessary public services to a development; and WHEREAS the draft reports containing the findings of the studies were posted on the Town's website and released to the public no later than June 3, 2022; and WHEREAS the Town Council held a public hearing on the studies on August 3, 2022; and WHEREAS the Town Council finds this resolution to be in the best interests of the Town and its citizens. NOW, THEREFORE, BE IT RESOLVED by the Mayor and Council of the Town of Marana, Arizona, adopting the following reports, full copies of which were included in the Town Council's agenda materials for the August 3, 2022 and September 20, 2022 meetings: 1. "Town of Marana Impact Fee Study Land Use Assumptions Public Report Final" dated September 20, 2022 2. "Town of Marana Impact Fee Study Streets Facilities Infrastructure Improvements Plan Public Report Final" dated September 20, 2022 3. "Town of Marana Impact Fee Study Update and Parks Infrastructure Improvement Plan Public Report Final" dated September 20, 2022 00083711.DOCX/1 Resolution No.2022-100 - 1 - 4. "Town of Marana Impact Fee Study Wastewater Facilities Infrastructure Improvements Plan Public Report Final" dated September 20, 2022 5. "Town of Marana Impact Fee Study Water Facilities Infrastructure Improvements Plan Public Report Final" dated September 20, 2022 PASSED AND ADOPTED by the Mayor and Council of the Town of Marana, Arizona, this 20th day of September, 2022. Aillili41 .( Mayor onea ATTEST: APPROVED AS TO FORM: 00.._ ,,,,,ipp- --•-• ,-.. .L. David L. Udall, Town Clerk z - Fairal 7Town Attorney ..6i6& ..., ..................... MARANA AZ ESTABLISHED 1977 00083711.DOCX/1 Resolution No.2022-100 - 2 - Town of Marana Impact Fee Study Land Use Assumptions Public Report IaILlI_" 40?_03 ° ALEJA"'DRO o ANCEL \\S�GNED��' / As approved by the Marana Town Council, September 20, 2022 Prepared by P 5 O M A S 333 East Wetmore Road, Suite 450 Tucson, AZ 85705 Prepared for R pg 0- !MW MARANA A Z 11555 West Civic Center Drive Marana, AZ 85653 Psomas Project No. 7TMA150123 September 20, 2022 Town of Marana Mayor and Council Ed Honea — Mayor Jon Post — Vice Mayor Patti Comerford — Councilmember Herb Kai — Councilmember Roxanne Ziegler — Councilmember John Officer — Councilmember Jackie Craig - Councilmember Key Staff Terry Rozema, Town Manager Steve Cheslak, Town Planner II Jane Fairall, Town Attorney Fausto Burruel, P.E., Public Works Director & Acting Town Engineer Protect Consultants Psomas 333 East Wetmore Road, Suite 450 Tucson, AZ 85705 520-292-2300 Prime Consultant — All Tasks September 2022 Land Use Assumptions Page i TABLE OF CONTENTS 1. INTRODUCTION 1.1. ALLOCATION OF GROWTH WITHIN SERVICE AREAS 2. EXISTING SOCIOECONOMIC CONDITIONS 2.1. POPULATION AND HOUSING 2.2. EMPLOYMENT 1 1 3 3 3 3. EXISTING (2022) SOCIOECONOMIC CONDITIONS - PAG-ASSISTED MODEL 4 4. LAND USE ASSUMPTIONS 5. 2032 CONDITIONS WITH LAND USE ASSUMPTIONS 6. REFERENCES APPENDIX A — LIST OF PREPARERS APPENDIX B — MAP OF TAZS APPENDIX C — POPULATION AND EMPLOYMENT BY TAZ 4i 9 11 September 2022 Land Use Assumptions Page ii LIST OF FIGURES FIGURE 1. STREETS SERVICE AREAS AND PARKS SERVICE AREA (TOWN LIMITS) 2 LIST OF TABLES TABLE 1. POPULATION AND HOUSEHOLD UNITS CENSUS DATA 3 TABLE 2. 2019 EMPLOYMENT DATA TABLE 3. MARANA LAND USE ASSUMPTIONS TABLE 4. COMMERCIAL DEVELOPMENT ASSUMPTIONS TABLE 5. SOCIOECONOMIC TOTALS (2022 — 2032) _3 _6 _9 10 September 2022 Land Use Assumptions Page iii 1. INTRODUCTION The Town of Marana collects development impact fees to offset some of the infrastructure costs associated with growth. The Town currently charges fees for roads, parks, and wet utilities and intends to continue doing so. In order to continue the fees, the Town must comply with Arizona Revised Statute (ARS) §9-463.05. In so doing, the Town will be preparing new development impact fee studies, project lists, and fee schedules. The statute limits the types of "necessary public services" which impact fees can fund. A municipality must develop two preliminary products prior to calculating the fees for each service category: a set of land use assumptions and an infrastructure improvement plan (IIP). As defined in ARS §9-463.05(T)6, "'Land use assumptions' means projections of changes in land uses, densities, intensities and population for a specified service area over a period of at least ten years and pursuant to the general plan of the municipality." This report is a required document that identifies the land use assumptions to be applied in the IIPs for streets, parks, and wet utilities, and the subsequent calculation of development impact fee rates. These land use assumptions are used to estimate the amount of new development within the benefit areas from which development impact fees will be assessed and generally reflect the community's general plan and the region's official suballocation of population forecast to the municipality. 1.1. ALLOCATION OF GROWTH WITHIN SERVICE AREAS A "service area" is defined in ARS §9-463.05 (T)9 as "any specified area within the boundaries of a municipality in which development will be served by necessary public services or facility expansions and within which a substantial nexus exists between the necessary public services of facility expansions and the development being served as prescribed in the infrastructure improvement plan." The Town will continue to use the current service areas, which are shown in Figure 1. The park service area includes the entire Town, and the wet utilities are those areas serviced by Marana Water or by Tucson Water when Marana is required to provide water credits. September 2022 Land Use Assumptions Page 1 Figure 1. Streets Service Areas and Parks Service Area (Town Limits) ----------------- Pinal Coun M■ ■ Pima Cc unry r� r�Y w xae . RD 1 • l.RN.HAD ■ DRIER RD , Ili ■._ �1J ���J w (`fA6 Fri yN ERI EIANNaN r I Marana yak + Regional P� 0 wl �NDRRR ,P AVRA�YSr D .�1 . �I lr LAptllHIL p J E TON., 1 - O. �t o�.ri E.aN RD c' �y I � . 1 (P - • ". IAROlM AD - Impact Fee ° Benefit Areas "`° H■ `�'■ dF Noaneastuararo l ran=o xorbe-It 1, - + ■ un nD y+l dp NoM1Ywasl Ma aTl nsportabon Domrt�a:, 4P SaM Transportation i3—otma N ■ �� ' l RD— pot I ■ �� I v� NMrNRE IR)L l RD R � "� URAN.6 SRO i DRANDl4vt�u � w S V1 September 2022 Land Use Assumptions Page 2 2. EXISTING SOCIOECONOMIC CONDITIONS 2.1. POPULATION AND HOUSING Marana continues to grow faster than the state as a whole. The general population and housing information shown in Table 1 was collected from the US Census Bureau'. Table 1. Population and Household Units Census Data Population, July 1, 2021 54,895 7,276,316 Population, 2020 (April 1) Census 51,908 7,151,502 Population, percent change, April 1, 2020to July 1, 2021 5.5% 1.7% Population, 2010 (April 1) Census 34,691 6,392,017 Population, percent change, between 2010-2020Census 49.6% 11.9% Median value of owner -occupied housing units, 2016-2020 $271,200 $242,000 Households, 2016-2020 17,277 2,643,430 Persons per household, 2016-2020 2.69 2.65 2.2. EMPLOYMENT Marana also has a higher employment rate than the state as a whole. The 2020 employment data in Table 2 was obtained from the US Census Bureau2. Table 2. 2020 Employment Data Population 16 years and over 37,210 1 - 5,720,956 - In labor force 22,297 59.1 % 3,436,482 60.1 Civilian labor force 22,102 58.6% 3,415,201 59.7% Employed 21,091 56.1 % 3,215,843 56.2% Unemployed 1,011 2.5% 199,358 3.5% Armed Forces 195 0.5% 21,281 0.4% Not in labor force 14,913 40.9% 2,284,474 39.9% Percent Unemployed unem to ed/labor force - 4.5% - 5.8% September 2022 Land Use Assumptions Page 3 3. EXISTING (2022) SOCIOECONOMIC CONDITIONS — PAG-ASSISTED MODEL As part of the update to the streets IIP, Psomas assisted the Pima Association of Governments (PAG) with refining the existing regional model and developing a travel demand model based on existing and projected socioeconomic conditions for use in this study. PAG maintains a model of existing conditions as well as a model representing the regional transportation network incorporating the planned 5-year Transportation Improvement Program (TIP) projects (currently through 2027). PAG provided both models as well as socioeconomic data for each Transportation Analysis Zone (TAZ) in the region for each model. The data included population and employment estimates. For the existing population and employment data for the TAZs within and surrounding the Marana impact fee service areas, proposed refinements were suggested to represent the impact fee service areas. These refinements were developed in concert with the Town and included updating population and/or employment for the TAZs to produce an updated model of existing conditions for the region for use in this project. In addition, because 2021 and the early part of 2022 saw significant growth in the Town, the volumes in the existing model were adjusted upward to account for the growth through the end of 2022. September 2022 Land Use Assumptions Page 4 4. LAND USE ASSUMPTIONS The land use assumptions are based on the current Town General Plan, as required by the statute. These are shown in Table 3. The land use assumptions include the estimated build out number of residential units and the estimated non-residential commercial acres. This was done to show the percentage of each development that is estimated to be constructed and eligible for inclusion in the IIP which is developed for a 10-year planning horizon. The 10-year period will begin January 1, 2023; therefore, December 31, 2032 would be the planning horizon. The land use assumptions are provided for the area within the existing Town limits and also within areas that are projected to be annexed within the 10-year period. September 2022 Land Use Assumptions Page 5 Table 3. Marana Land Use Assumptions Development Buildout Residential Units Buildout Commercial Acres Existing and 10 Year Growth Current Streets Impact Fee Area Existing Residential Units* 10 Year Residential Units Existing Commercial Acres* 10Year Commercial Acres AERIE APARTMENTS (Phase 3) 400 0 400 0 0 0 South AIRPORT 0 10 0 0 50 10 South ALEXANDER SP APARTMENTS (MU) 211 3 211 0 3 3 South BREAKERS RD INDUSTRIAL 0 40 0 0 40 40 Northeast CONTINENTAL RANCH (MU) 0 6 0 0 26 6 South CORTARO RANCH (Commercial) 0 9 0 0 9 9 South CROSSROADS AT GLADDEN 0 122 0 0 168 122 Northwest CUSTOM HOMES 0 0 0 60 0 0 Northeast CUSTOM HOMES (Marana Water) 0 0 0 30 0 0 Northeast CYPRESS GARDENS 217 0 0 217 0 0 Northwest DE ANZA 265 0 115 150 0 0 South DOVE MOUNTAIN (MU) 9,159 0 5,197 1,800 105 0 Northeast GLADDEN FARMS (Commercial) 0 0 0 0 22 0 Northwest GLADDEN FARMS II 2,539 0 950 1,589 0 0 Northwest HERITAGE PARK SHOPPES 0 9 0 0 18 9 Northwest JOPLIN ESTATES (MU) 185 0 0 185 18 0 South LA PUERTA DEL NORTE EAST 150 0 0 150 0 0 South LAZY K 178 0 178 0 0 0 South LINDA VISTA VILLAGE (MU) 693 0 0 693 26 0 South MAN DARINA (MU) 2,500 0 0 1,650 11 0 Northwest MAN DARINA SOUTH (MU) 750 20 0 250 20 20 Northwest MARANA & 110 (Dahlstrom Commercial) 0 28 0 0 37 28 Northwest MARANA MAIN ST. (Commecial) 0 10 0 0 20 10 Northwest MARANA SPECTRUM/CENTER (MU) 275 87 275 0 87 87 South MARANA TECHNOLOGY CAMPUS 0 9 0 0 9 9 Northeast MARANA TOWNE CENTER (MU) 2,200 30 0 0 462 30 Northwest September 2022 Land Use Assumptions Page 6 Table 3 cont'd. Marana Land Use Assumptions Development Buildout Residential Units Buildout Commercial Acres Existing and 10Year Growth Current Streets Impact Fee Area Existing Residential Units* 10Year Residential Units Existing Commercial Acres* 10Year Commercial Acres ORANGE GROVE INDUSTRIAL(Commercial) 0 3 0 0 5 3 South PAYSON FARMS (Remington Ranch) 457 0 0 457 0 0 Northwest PIMA FARMS NORTH (Commercial) 700 1 480 200 1 1 South PRESERVE ATTWIN PEAKS (Lennar) 190 0 140 50 0 0 Northeast QUIKTRIP PLAZA @ Star Commerce (Commercial) 0 6 0 0 6 6 South RANCHO MARANA - West (MU) 516 1 366 150 5 1 Northwest RANCHO MARANA TOWN CENTER (Commercial) 0 5 0 0 41 5 Northwest RIVERSIDE @ SILVERBELL (SE INA/SB) (MU) 210 0 0 210 12 0 South SAGUARO BLOOM 2,509 0 1,809 700 0 0 South SAGUARO RANCH 240 0 15 50 0 0 Northeast SANDERS GROVE 2,500 0 0 700 0 0 Northwest SILVERBELL GATEWAY (NE INA/SB) (Apts) (MU) 300 0 300 0 0 0 South SILVERBELL RIDGE (SW of Ina) 56 0 0 56 0 0 South SONORAN PRESERVE at BAJADA 29 0 15 14 0 0 Northeast STONEGATE 3,138 0 0 1,000 0 0 Northwest TANG THORNYDALE SW CORNER REZONE(MU) 250 0 0 250 15 0 Northeast TANGERINE BUSINESS PARK (Commercial) 0 7 0 0 40 7 Northeast TANGERINE COMMERCE PARK 0 30 0 0 47 30 Northwest TANGERINE CROSSING Fry's (Commercial) 0 3 0 0 3 3 Northeast TANGERI N E THORNYDALE (ViIlagio, HSL) (MU) 107 0 0 107 2 0 Northeast TAPESTRY 670 0 0 600 0 0 Northeast TORTOLITA 30 REZONE 82 0 42 40 0 0 Northeast TORTOLITA VISTAS 155 0 115 40 0 0 Northeast TWIN PEAKS & LAMBERT 62 0 62 0 0 0 Northeast TWIN PEAKS CROSSING (Cardinal)(MU) 154 0 0 154 25 0 Northeast TAVIRA AT TWIN PEAKS ESTATES 82 0 0 82 0 0 Northeast September 2022 Land Use Assumptions Page 7 Table 3 cont'd. Marana Land Use Assumptions Development Buildout Residential Units Buildout Commercial Acres Existing and 10Year Growth Current Streets Impact Fee Area Existing Residential Units* 10Year Residential Units Existing Commercial Acres* 10Year Commercial Acres TWIN PEAKS RD (Future rezones) 100 0 0 100 0 0 Northeast TWIN PEAKS VISTA 58 0 0 58 0 0 Northeast UPTOWN 930 0 0 300 0 0 Northwest VAN DERBILT FARMS (MU) 1,945 0 224 1,500 0 0 Northwest VILLAGES OF BARNETT 251 1 0 1 81 50 0 0 Northwest Vi I I ages of Tortol ita 6,500 0 0 300 1 0 1 0 Northwest WHITNEY FARMS 12 0 12 0 0 0 Northwest Total 13,942 439 Average Growth per Year 1,394 44 *Existing residential units and existing commercial acres are an etimated projection for the winter of 2022, the anticipated effective data of anew impact fee cycle. September 2022 Land Use Assumptions Page 8 5. 2032 CONDITIONS WITH LAND USE ASSUMPTIONS The land use assumptions were provided to the PAG travel demand modeling staff. Psomas estimated 2022 and 2032 socioeconomic population and employment projections by TAZ and compared them with the PAGs socioeconomic parameters (population and employment). The project team met with PAG staff to discuss their findings, including suggested refinements of some of the TAZ boundaries, and to request a special model run for the project based on the Psomas projections. The 2032 socioeconomic conditions were estimated using data from the PAG 2021 model and adding the projects in the Land Use Assumptions (if they were not already represented in the model). For residential developments, population was calculated assuming an average of 2.5 persons per unit. This assumption was applied for consistency with the existing PAG model, which showed an average of 2.5 persons/residence. Slight variations were used based on the location and type of residential development to remain consistent with the persons per household information available in the PAG model for various TAZs. The commercial development assumptions and employment estimates are based on analysis conducted for the Marana Town Center study and information provided by PAG, shown in Table 4 Table 4. Commercial Development Assumptions 20% 600 Retail High Traffic Retail 20% 200 Office 20% 400 Industrial 20% 500 Medical 20% 500 Hotel 20% 1,800 After the population and employment numbers were calculated for 2032 for each of the proposed projects in the Town of Marana, those values were assigned to the TAZ(s) in which the project is expected to be located. The population and employment numbers were then compared to the corresponding values provided in the PAG 2030 model. September 2022 Land Use Assumptions Page 9 The higher of the two values for each affected TAZ was used for the 2032 model to ensure that all of the planned projects in the Town were accounted for in the 2032 model. Additional adjustments were made to better represent 2022 and 2032 conditions after the models were run due to the significant growth in the Town in 2021 and the expected growth through 2022. A summary of the population and employment estimates for 2022 and 2032 conditions and the increases in each are shown in Table 5. The population and employment numbers by TAZ and the TAZ/Service Areas map are provided in the appendix. It should be noted that the population and employment estimates in the appendix differ from Table 5 because some areas located outside the Town are included in several of the TAZs. The estimated future population of 88,241 in 2032 is higher than the Arizona State Demographers forecast' of 69,627. However, the State forecast was prepared in 2018 based on the 2010 Census data and does not account for unexpected significant increases in residential and commercial development during the COVID-19 pandemic and expected continuation of that growth. As an example, the 2021 forecast for Marana was 6.5% less than the US Census estimate in Table 1 (51,568 by the State, 54,895 in the US Census estimate) Table 5. Socioeconomic Totals (2022 — 2032) 4,407 15,190 Northwest 2,130 11,100 6,537 26,290 Northeast 1,415 13,047 2,526 24,746 1,111 11,700 South 10,747 30,786 13,813 37,205 3,066 6,419 Townwide Totals 14,292 54,932 22,876 88,241 8,584 33,309 September 2022 Land Use Assumptions Page 10 6. REFERENCES https://www.census.gov/quickfacts/fact/dashboard/maranatownarizona/PST045221 accessed August 2022. 2https://data.census.gov/cedsci/table?q=marana%20arizona%2OEmployment&tid=ACSDP5Y202 O.DPO3 accessed August 2022. 3 https://www.azcommerce.com/oeo/population/population-protections/, accessed August 2022 September 2022 Land Use Assumptions Page 11 Appendix A List of Preparers Psomas Alejandro Angel, PhD, P.E., PTOE, RSP2; Darlene Danehy Yellowhair, P.E., PTOE, ENV SP, RSP2; Staff Participants Fausto Burruel, P.E., Public Works Director & Acting Town Engineer Steve Cheslak, Town Planner II Jane Fairall, Town Attorney Appendix B - Map of TAZs 1105 - - A 1106 Northeast 892 723 , _ 817 810 _ 2 ' 821 820 801 f� �- N RD HARDIN RD 815 802 �' 695 829 , 819 814 ❑ r 808 799 -� Lu 818 813 -- 711 68 82,_ O 809 �lL� IV AR RD 17, 735 �82� 0 807 cQ 790 769 7 lV� �!! ` N GRI R RD 797 O,LT 784 691 <v �O f w 806 798 �CF� 789 ?753 716 __\�i O O Lu 812 BARN ETT RD O 889 �24 �' 796°�9S 702 694 681 805 OORE RD 785 783 Lu MOOREIRD O804 794 786 JJEL TIRO RD � 788 764 7528 733 721 718 712 7 5 t69 692787 F F 811 \795 TANGERINE FARMS RD TANGERINE RD > m O 684 683 <<�O 803 782 751 ❑ 743 �PP LOVE RD PA ISADES RD 793 778 �P 732 717 714 70 701 Q 688 i 825 800 O� CAMINO DEL N RTE A NJ 4DR 781 � 765 ���0 722 / 887 AVRA VALLEY RD P 74 w 734 719 715 08 i9 685 Q LAMBE T LN f + 792 780 76 758 �S�O 0 ❑ z 709 '�- ` 779 0 766 Q 157 1034 Oz 1039 � 1040 Oz ,r 689 t T IN PEAKS D _\� LINDA V STA BL QrA035 W Q 720 Q 713 LINDA VISTA L r 0 " ❑ 773 z 1739 z 1038 pOor z 767 774 759 749 z 1033 0 OVERT N RD rO w81 772 z � 1048 1045 Q � � 6 r 1 Q 768 inn HARDY R1, �� z 791 (9, 763 755 = 737 — _ f r+ Q 77.9 �(<, CO l ^40 FARMS RD 1047 1045 1054 704 693 = / ' O w / 771 F! 761 O F- 1036 1069053 724 A �/ 1 ❑ !�O 0 74r p �! MAGEE D 4 -- w 1037 1060 82 zz 762�0� 754 748 ❑O — - —1 1 1055 703 , 9 697 I % 968 ( 6 r� 883 �1 r'� � �5 � �• , ji 891 ! . i 'k7 76011 JA R - 731 729 1058 ` ( INA ►gyp zy> �l { r 844 / •. a 0 - �� C i PJCTURE �'• 736 z p 108572g744 051 z1059Q 101052 1071079 730 • tr I = + 1075 1081 746 zBELMONT RDJ 5 ORA GE G OVE RD 770 1049855 ROCKS RD ❑ y , 1•• 890 " �. 756 622 6 �639� 1050 '07 1071 z 1074 1076 Q t .. �' ¢ ~ 1077 J SUNSET RD 620 a 1072 V • ENTRAQ 632 1070 540 < , Source: Esri, DigitalGlobe, GeoEye, i-cubed, USDA, USGS, AE�X> GetlmappiRg Aerogrid,11G , I wissiopo, and the GI= UsI Community Appendix C Population and Employment by TAZ Northwest Benefit Area �000 '' • 0 ' • 000000 0 0 •' 00 �000 • 0 • 000000 000000 �000000 000000 • 0�0�00 000000 0©0©00 South Benefit Area 2022 2032 Increase TAZ Employees Population Employees Population Employees Population 622 69 3 117 9 48 6 628 639 999 653 1,146 14 147 725 318 970 320 1,318 2 348 728 401 0 401 0 0 0 729 478 959 487 962 9 3 730 1,539 0 1,994 0 455 0 731 837 1,810 852 1,860 15 50 736 1,401 1,687 1,401 2,320 0 633 737 115 2,113 115 2,119 0 6 739 0 1,727 26 1,742 26 15 740 100 1,541 102 1,683 2 142 744 193 0 206 541 13 541 746 0 40 10 47 10 7 747 144 1,887 169 2,010 25 123 748 2,982 21 3,243 19 261 -2 749 15 1,205 18 2,374 3 1,169 754 172 0 433 410 261 410 755 71 864 313 941 242 77 756 12 858 19 1,084 7 226 757 0 531 82 595 82 64 758 1 207 1 200 0 -7 759 803 607 1,787 423 984 -185 760 79 1,067 82 1,499 3 432 761 366 1,448 367 1,503 1 55 762 18 953 21 1,048 3 96 763 17 1,272 17 1,361 0 89 766 0 0 4 0 4 0 767 15 1,374 15 1,303 0 -71 768 214 2,123 214 1,979 0 -144 770 125 791 129 939 4 148 771 444 4,450 444 4,450 0 0 772 164 2,627 665 3,044 501 418 773 13 1,228 13 1,911 0 683 774 910 866 960 1,697 50 831 775 55 1,610 55 1,013 0 -597 776 0 1,065 11 1,357 11 292 777 26 272 26 289 0 17 779 9 3,731 12 4,683 3 952 780 37 241 44 698 7 457 781 45 0 45 0 0 0 791 50 61 51 61 1 0 792 0 0 0 0 0 0 793 0 0 56 0 56 0 800 68 0 152 0 84 0 803 16 3 60 3 44 0 811 85 473 85 473 0 0 816 199 400 199 620 0 220 825 35 49 35 49 0 0 TOTALS 13,280 44,134 16,510 51,782 3,230 7,648 Northeast Benefit Area 2022 2032 Increase TAZ Employees Population Employees Population Employees Population 721 416 831 460 833 44 2 723 0 0 0 0 0 0 727 31 336 31 354 0 18 732 4 692 5 1,897 1 1,205 733 45 209 45 508 0 299 734 27 315 28 318 1 3 735 1 261 1 2,447 0 2,186 738 11 1,560 11 2,437 0 877 741 166 1,132 166 2,324 0 1,192 742 0 555 11 756 11 201 743 16 469 20 1,105 4 636 750 2 513 3 763 1 250 751 0 0 0 0 0 0 752 1 1,044 1 1,468 0 424 753 625 4,832 692 7,918 67 3,086 764 0 0 0 0 0 0 765 0 0 0 0 0 0 769 56 1,564 57 2,370 1 806 778 167 103 1,180 198 1,013 95 784 145 123 145 872 0 749 801 0 0 0 0 0 0 TOTALS 1,713 14,539 2,858 26,568 1,145 1 12,029 2022 2032 Increase TAZ Totals Employees Population Employees Population Employees Population 17,296 70,015 27,740 104,936 10,444 34,922 2022 2032 Increase Town Totals Employees Population Employees Population Employees Population 14,292 54,932 22,876 88,241 8,584 33,309 Town of Marana Impact Fee Study Streets Facilities Infrastructure Improvements Plan Public Report IaILlri" i c A 40203 ° CC ALEJA 'DRO O ANCEL �O 9�S�G N EODQ' / yR��ONA. 03. P As approved by the Marana Town Council, September 20, 2022 Prepared by PS O M A 5 333 East Wetmore Road, Suite 450 Tucson, AZ 85705 Prepared for MARANA CELEBRATING 40 YEARS 11555 West Civic Center Drive Marana, AZ 85653 Psomas Project No. 7TMA150123 September 20, 2022 Town of Marana Mayor and Council Ed Honea — Mayor Jon Post — Vice Mayor Patti Comerford — Councilmember Herb Kai — Councilmember Roxanne Ziegler — Councilmember John Officer — Councilmember Jackie Craig - Councilmember Key Staff Terry Rozema, Town Manager Fausto Burruel, P.E., Public Works Director & Acting Town Engineer Jane Fairall, Town Attorney Protect Consultants Psomas 333 East Wetmore Road, Suite 450 Tucson, AZ 85705 520-292-2300 Prime Consultant — All Tasks September 2022 Streets Facilities Infrastructure Improvements Plan Page i TABLE OF CONTENTS 1. INTRODUCTION 1 1.1. ALLOCATION OF GROWTH WITHIN SERVICE AREAS 1 2. NECESSARY PUBLIC SERVICES 3 2.1. EXISTING NEEDS 3 2.2. PAG MODELING METHODOLOGY 5 2.3. PROJECTED NEEDS 7 3. TRAVEL DEMAND PER DEMAND UNIT— METHODOLOGY H 3.1. AVERAGE TRIP LENGTH 3.2. ITE TRIP GENERATION RATES 3.3. PRIMARY TRIPS 3.4. TRAVEL DEMAND ON THE ARTERIAL AND MAJOR COLLECTOR ROAD NETWORK 4. PROJECTED SERVICE UNITS FOR NEW DEVELOPMENT 11 5. REVENUE CONSIDERATIONS 6. REFERENCES 12 14 September 2022 Streets Facilities Infrastructure Improvements Plan Page ii LIST OF FIGURES FIGURE 1. STREETS FACILITIES SERVICE AREAS LIST OF TABLES TABLE 1. NECESSARY STREETS FACILITIES, EXISTING AND FUTURE TABLE 2. CURRENT AND FUTURE TRAFFIC VOLUMES 2 El 0 TABLE 3. ESTIMATE OF STREETS FACILITY DEMAND PER UNIT OF LAND USE 9 September 2022 Streets Facilities Infrastructure Improvements Plan Page iii 1. INTRODUCTION The Town of Marana collects development impact fees to help offset some of the infrastructure costs associated with growth, as many jurisdictions do. In order to continue charging impact fees, the Town must comply with Arizona Revised Statute (ARS) §9- 463.05, which includes the preparation of development fee studies, project lists, and fee schedules. Prior to establishing fees, a land use assumptions document and an infrastructure improvement plan (IIP) must be prepared. This report identifies the infrastructure needs for the street facilities in the Town. The analysis only includes arterials and major collectors, since roadways with lower classifications are generally internal to development and are constructed during the development process. This analysis will be used in the subsequent calculation of impact fee rates. This report is an update of the Streets Facilities IIP approved and adopted by Town Council action in September 2017. The land uses that are used in this report to evaluate infrastructure needs are documented separately in the Land Use Assumptions report developed by the Town of Marana. The Land Use Assumptions report provides a quantification of expected future development within each of the service areas for which impact fees will be assessed. 1.1. ALLOCATION OF GROWTH WITHIN SERVICE AREAS A "service area" is defined in ARS §9-463.05 (T)9 as "any specified area within the boundaries of a municipality in which development will be served by necessary public services or facility expansions and within which a substantial nexus exists between the necessary public services of facility expansions and the development being served as prescribed in the infrastructure improvement plan." The Town of Marana currently has three service areas for streets: Northeast, Northwest, and South. The Town will continue to use the current service areas, which are shown in Figure 1. September 2022 Streets Facilities Infrastructure Improvements Plan Page 1 Figure 1. Streets Facilities Service Areas , 1 - 1 1 10 , - on 1 1 � Impact Fee CA S�MTmnsportatooni3mootma ' 'A r .i ail• � %. •• 10 September 2022 Streets Facilities Infrastructure Improvements Plan Page 2 2. NECESSARY PUBLIC SERVICES 2.1. EXISTING NEEDS For each necessary public service for which impact fees will be used, this document shall include the following: Per ARS §9-463.05(E)1: • "A description of the existing necessary public services in the service area and the costs to upgrade, update, improve, expand, correct or replace those necessary public services to meet existing needs and usage and stricter safety, efficiency, environmental or regulatory standards, which shall be prepared by qualified professionals licensed in this state, as applicable." Per ARS §9-463.05(E)2: • "An analysis of the total capacity, the level of current usage and commitments for usage of capacity of the existing necessary public services, which shall be prepared by qualified professionals licensed in this state, as applicable." The Town of Marana has identified the roadway projects which will be included in the development fee study as necessary public services. These projects, shown in Table 1, are necessary mainly due to the expected growth which was documented in the Land Use Assumptions report. The projects fall into three primary categories: • New roadways/intersections • Widening/improvement of existing roadways or intersections • Legacy projects — projects already constructed by the Town or a developer with excess capacity to be used by new development (per ARS 9-463.05 (13)(7)(b)) Table 1 includes the total costs for each project, as well as the cost attributable to new development. The costs for each project were derived from various sources (as indicated in the table) and fluctuate depending on the current status of the project (planning/design/construction/completed) and on various site -specific conditions such as drainage, right-of-way and environmental issues. The primary sources of data are: • Actual costs (debt service or impact fee credits) for legacy projects already constructed by the Town or by developers. • Project -specific estimates for projects already in the design stage. September 2022 Streets Facilities Infrastructure Improvements Plan Page 3 Table 1. Necessary Streets Facilities, Existina and Non- Future Total Capital Cost .. d Project Limits # of Lanes Length Construction (mi) Per Lane -Mile Cost Total Construction Costs* Cost - New/ Improvements Legacy Cost Attributable to Development" Source / Notes Marana Main Street Sandario Grier 2 0.54 $2,100,000 $2,268,000 $986,580 $3,255,000 $3,255,000 Lane mile costs from RTA Bids Marana Main Street Tangerine Farms Rd Sandario 2 0.35 $873,000 $873,000 Town of Marana / Debt Service Tangerine Farms Road 1-10 (Tangerine TI) Clark Farms 4 4.1 Outstanding Impact Fee Credits $3,018,397 $3,018,397 Clark Farms Riccati Dr Despain Dr 3 0.7 (built by developer) V Tangerine Farms Road Clark Farms 1-10 (Marana TI) 4 1.2 $2,100,000 $10,080,000 $5,896,800 $15,977,000 $7,484,400 Lane mile costs from RTA Bids v Marana Road Interchange, N/A N/A N/A N/A $6,753,000 $6,753,000 Town of Marana /prelim estimate o z Phase 1 Clark Farms Despain Dr Lon Adams Rd 3 0.5 $2,100,000 $3,150,000 $1,370,250 $4,520,000 $3,365,622 Lane mile costs from RTA Bids Clark Farms Lon Adams Rd Tangerine Farms Rd 4 2.1 $2,100,000 $17,640,000 $7,673,400 $25,313,000 $11,774,700 Lane mile costs from RTA Bids Adonis Road Grier Rd Tangerine Rd 2 3.0 $2,100,000 $12,600,000 $8,001,000 $20,601,000 $14,465,963 Lane mile costs from RTA Bids Tangerine Road Interchange N/A N/A N/A N/A $4,500,000 $4,500,000 Town of Marana / prelim estimate (Cost split with NE) Tangerine Road, Phase 1 Dove Mountain Blvd Town Limits 4 2.4 $6,189,000 $1,896,029 Town of Marana / Shortfall in impact fees at time of construction Town of Marana / Calculated cost Tangerine Road, Phase 2 1-10 (Tangerine TI) Dove Mountain Blvd 4 4.6 $42,537,000 $13,936,211 based on Phase 1 costs, less RTA and State funding N (6 `o Twin Peaks Road Lambert Ln Tangerine Rd 4 2.1 $3,642,259 $3,642,259 Town of Marana / Debt Service z Moore Road Camino de Oeste Thornydale Rd 2 1.3 $291,788 $291,788 Town of Marana / Outstanding cost Cayton Road Dove Mountain Blvd Thornydale Rd 2 1.1 $2,100,000 $4,620,000 $2,009,700 $6,630,000 $6,630,000 Lane mile costs from RTA Bids Tangerine Road Interchange N/A N/A N/A $1,500,000 $1,500,000 Town of Marana / prelim estimate(Cost split with NW) Twin Peaks Interchange N/A N/A N/A N/A $3,757,886 $3,757,886 Town of Marana /Debt Service Twin Peaks Road 1-10 Lambert Ln 4 1.3 Twin Peaks Road/ Saguaro Highlands Dr Silverbell Rd 4 1.5 $18,001,838 $7,506,111 Town of Marana /prelim estimate Rattlesnake Pass Cortaro Road I-10 Camino de Oeste 4 1.7 $8,134,735 $2,319,081 Town of Marana / Construction Cost o Silverbell Road Ina Rd Cortaro Rd 4 1.0 $21,068,682 $8,023,017 Town of Marana /Construction Cost Ina Road I-10 Silverbell Rd 4 1.1 $9,000,000 $3,006,062 Town of Marana / Construction Cost Town of Marana / RTA estimates of Silverbell Road Sunset Rd Ina Rd 4 3.2 $8,013,159 $2,625,316 difference between 3-lane and 4- lane for Marana portion of project * Includes ROW, environmental mitigation, drainage, design, construction Total (New/Improvement Facilities) $201,993,414 Total (Legacy Facilities) $11,583,330 management, financing costs TOTAL (ALL FACILITIES) $213,576,744 ** See Appendix C for additional detail September 2022 Streets Facilities Infrastructure Improvements Plan Page 4 • Generalized cost per lane -mile (from similar projects) for projects that have not advanced past the preliminary planning stage Based on the 10-year framework required by the ARS, the analysis years include 2023 through 2032. The roadway projects for that period include 70.8 lane -miles of new and improved roadways, three traffic interchanges along Interstate 10 (at Twin Peaks Road, Tangerine Road, and Marana Road), and 50.6 lane -miles of legacy facilities reserved for development. Traffic volumes for each roadway project in 2022 and 2032 are provided in Table 2. The development of the traffic volumes in the table are further discussed in the following section. 2.2. PAG MODELING METHODOLOGY The Pima Association of Governments (PAG) maintains a travel demand model that estimates the future volumes for the Tucson metropolitan area. A new 2031 model was developed for this study based on employment, population, and facility inputs provided by the project team in collaboration with the Town. Note that the results of this model (and the 2021 model, also provided by PAG) do not represent official PAG forecasts but are instead a special product developed by PAG for the Town of Marana. The model results were further adjusted to better represent 2022 and 2032 conditions considering the considerable growth in the Town in 2021 and early 2022. The PAG model does not directly include ITE trip generation rates (which are typically used to determine how much traffic a development will generate). Instead, the model develops trip generation based on the characteristics of each Traffic Analysis Zone (TAZ), such as employment and population. Trips are then distributed on the surrounding roadway network based on origins and destinations, trip length, travel time, and available roadway capacity. Employment and population estimates were provided by Psomas based on previous model inputs, official PAG model inputs, and information provided by the Town. The resulting volumes are shown on Table 2. In some cases, existing and/or future volumes were adjusted beyond what was provided in the PAG models based on recent traffic counts and other available information. In addition, volumes were adjusted to better represent 2022 and 2032 conditions. September 2022 Streets Facilities Infrastructure Improvements Plan Page 5 Table 2. Current and Future Traffic Volumes ... Project Marana Main Street Limits Sandario Rd qvp Grier Rd eed Limit 25 Existing Existing Volume Volume .. 0 Existing CapacityCapacity .. N/A Future .. 1,000 Future 3,000 Future .. 13,990 Marana Main Street Tangerine Farms Rd Sandario Rd 25 1,000 16,730 300 4,300 16,730 Tangerine Farms Road 1-10 (Tangerine TI) Clark Farms 45 13,500 37,610 27,500 37,610 v Clark Farms Riccati Dr Despain Dr 40 3,200 17,567 8,700 17,567 v t Tangerine Farms Road Clark Farms 1-10 (Marana TI) 45 0 N/A 10,000 30,620 o Marana Road Interchange, Phase 1 N/A N/A N/A N/A N/A N/A N/A z Clark Farms Despain Dr Lon Adams Rd 35 0 N/A 10,000 14,690 Clark Farms Lon Adams Rd Tangerine Farms Rd 35 0 N/A 9,000 30,620 Adonis Road Grier Rd Tangerine Rd 45 0 N/A 10,000 15,930 Tangerine Road Interchange N/A N/A N/A N/A N/A N/A N/A Tangerine Road, Phase 1 Dove Mountain Blvd Town Limits 50 10,000 15,400 37,610 15,000 20,400 37,610 Tangerine Road, Phase 2 1-10 (Tangerine TI) Dove Mountain Blvd 50 8,000 16,730 14,000 37,610 Twin Peaks Road Lambert Ln Tangerine Rd 45 16,000 37,610 23,500 37,610 o Moore Road Camino De Oeste Thornydale Rd 30 3,000 13,990 7,000 16,730 z Cayton Road Dove Mountain Blvd Thornydale Rd 30 0 N/A 5,400 13,990 Tangerine Road Interchange N/A N/A N/A I N/A N/A N/A N/A Twin Peaks Interchange N/A N/A N/A N/A N/A N/A N/A Twin Peaks Road 1-10 Lambert Ln 45 18,000 22,000 37,610 29,000 33,000 37,610 t Twin Peaks Road/Rattlesnake Pass Saguaro Highlands Dr Silverbell Rd 45 12,500 16,730 16,000 22,700 37,610 o Cortaro Road 1-10 Camino de Oeste 40 25,000 37,610 29,000 37,610 Silverbell Road Ina Rd Cortaro Rd 45 22,000 14,000 37,610 22,500 37,610 Ina Road 1-10 Silverbell Rd 45 26,000 16,730 22,000 32,300 37,610 Silverbell Road Ina Rd Sunset Rd 45 10,000 16,730 16,000 37,610 1 From PAG 2021Travel Demand Model using Marana Land Use Assumptions z Used recent traffic count if significant differences between 2021 PAG Model and recent traffic counts 3 Based on current road section and FDOT Capacity Tables 4 From PAG Travel Demand Model using Marana 2031 Land Use Assumptions and regional growth factor 5 Adjusted to better reflect anticipated volumes based on existing and planned developments 6 Based on 2032 road section and FDOTCapacity Tables September 2022 Streets Facilities Infrastructure Improvements Plan Page 6 To estimate the necessary public services, the daily roadway capacity for one lane -mile of arterial roadway was calculated. The general daily capacity for a single lane ranges from 7,000 to 9,000 vehicles per day (vpd), depending on the roadway type, vehicular access control, and whether the roadway is in an urban or a rural area. The Town uses performance criteria based on daily service volumes included in their 2017 Transportation Impact Analysis guidelines' to evaluate roadway Level of Service (LOS). LOS D is the performance standard for most areas and will be used in this study. The often -used Florida Department of Transportation (FDOT) standards2 for LOS D are similar to those used by the Town of Marana. It is recommended that the FDOT standards for LOS D for each roadway type be adopted for this study. The appropriate roadway capacities are shown in Table 2. 2.3. PROJECTED NEEDS ARS §9-463.05(E)3 requires that this document shall include: "A description of all or the parts of the necessary public services or facility expansions and their costs necessitated by and attributable to development in the service area based on the approved land use assumptions, including an forecast of the costs of infrastructure, improvements, real property, financing, engineering and architectural services, which shall be prepared by qualified professionals licensed in this state, as applicable." As shown in Table 1, there are approximately 70.8 lane -miles of new roadway attributable to new development, three traffic interchanges along 1-10, and 50.6 miles of legacy facilities reserved for development, with an estimated total cost attributable to development of $110,623,843 (see Appendix C). The cost of preparing updates to the impact fee documents twice during the 10-year study period, based on the cost of this study, is $180,000 ($90,000 per update). Therefore, the total cost for providing these necessary public services associated with streets is $110,803,843 during the 10-year time period. September 2022 Streets Facilities Infrastructure Improvements Plan Page 7 3. TRAVEL DEMAND PER DEMAND UNIT— METHODOLOGY ARS §9-463.05(E)4 requires that this document shall include: "A table establishing the specific level or quantity of use, consumption, generation or discharge of a service unit for each category of necessary public services or facility expansions and an equivalency or conversion table establishing the ratio of a service unit to various types of land uses, including residential, commercial and industrial." Town staff provided a list of land uses which will be used in calculating the trip generation for future development projects. Each of these land uses has documented trip rates in the ITE Trip Generation Manual3. There have been some minor changes in the land uses since the adoption of the 2017 IIP to better fit Town policies and projected development. Table 3 shows the estimated roadway demand per unit of land use, and a description of the factors is included in the following sections. 3.1. AVERAGE TRIP LENGTH The average trip length shown in Table 3 is based on trip length data from the Table 5 of the 2017 National Household Travel Survey' (NHTS). The survey data is collected from a sample of U.S. households and is expanded to provide national estimates of trips and travel distance by travel mode, trip purpose, and a number of household characteristics. The trip length for primary trips to high -traffic retail locations (such as gas stations and fast-food restaurants) was estimated to be half of the general retail trip length. 3.2. ITE TRIP GENERATION RATES The ITE Trip Generation Manual contains trip generation rates for a wide variety of land uses by unit of land use measurement (i.e. per residential unit for residential developments, per 1,000 square feet for commercial, etc.). The 10th Edition, published in 2017, was referenced for this work. The PM peak hour rates were applied in the demand unit calculations. The PM peak hour rates were used because that period is typically the busiest period of the day and is generally what drives the need for additional capacity. September 2022 Streets Facilities Infrastructure Improvements Plan Page 8 Table 3. Estimate of Streets Facility Demand per Unit of Land Use Land Use Category 100% 100% 100% 100% 100% 100% 0.99 0.56 0.49 0.18 0.30 0.26 10.7 10.7 10.7 10.7 10.7 10.7 48% 48% 48% 48% 60% 60% 5.1 2.9 2.5 0.9 1.9 1.7 210 220 310,320 253 251 252 1.0 0.6 0.5 0.2 0.4 0.3 Residential Single Family Residential Multi -Family Hotel/Motel Congregate Care Single Family Residential (age restricted) Multi -Family (age restricted) Dwelling Unit Dwelling Unit Rooms Dwelling Unit Dwelling Unit Dwelling Unit Retail and Services < 15, 000 sf > 15, 000 sf 1000 sf 1000 sf 19% 66% 8.90 3.81 7.1 7.1 40% 40% 4.8 7.1 820 820 0.9 1.4 High Traffic Retail 1000 sf 23% 29.14 3.6 40% 9.5 853, 912, 930, 934 1.9 Industrial 1000 sf 70% 0.72 10.7 40% 2.2 110, 151, 155 0.4 Office 1000 sf 75% 1.15 11.5 40% 4.0 710 0.8 Medical Facility 1000 sf 60% 2.13 10.7 40% 5.5 610,630 1.1 Institutional 1000 sf 50% 1.17 6.4 40% 1.5 520,530 0.3 Recreation 1000 sf 34% 1.16 10.4 40% 1.6 411,495 0.3 September 2022 Streets Facilities Infrastructure Improvements Plan Page 9 3.3. PRIMARY TRIPS Primary trips are trips to and from a specified land use which a driver intended to make without making other stops along the way. Drivers may also choose to divert from their originally intended path to make a secondary stop or may choose to make a stop along their original path. These trips are called diverted trips and pass -by trips, respectively. The calculations for determining impact fees are based solely on primary trips, so diverted trip and pass -by trip data in the ITE Trip Generation Manual was used to determine what percentage of trips are primary trips for each land use, with two exceptions. The manual does not include pass -by trip information for recreational uses such as a gym or rec center, so it was assumed that those uses would have a travel pattern similar to a gas station where many users stop by between home and work/school/etc. For the school uses, the primary trip percentage was estimated based on previous experience and is consistent with the percentage used in the Pima County Street Facilities Infrastructure Improvements Plan'. 3.4. TRAVEL DEMAND ON THE ARTERIAL AND MAJOR COLLECTOR ROAD NETWORK As previously discussed, only trips on the arterial and major collector roadways are considered in the development of impact fees. A general assumption, matching that in the 2017 IIP, is that 80% of travel occurs on the arterial/major collector system for most land use types. As the Town has grown, it is assumed that 60% of all residential trips are on Town roadways. For most of the other land uses, half of the generated trips will occur on Town roadways, while the other half will occur outside Town limits or on non -town roadways (such as 1-10). Trips generated by age restricted residential developments are expected to include a higher percentage on Town roadways. September 2022 Streets Facilities Infrastructure Improvements Plan Page 10 4. PROJECTED SERVICE UNITS FOR NEW DEVELOPMENT ARS §9-463.05(E)5 requires that this document shall include: "The total number of projected service units necessitated by and attributable to new development in the service area based on the approved land use assumptions and calculated pursuant to generally accepted engineering and planning criteria." In addition, ARS §9-463.05(E)6 requires that this document shall include: "The projected demand for necessary public services or facility expansions required by new service units for a period not to exceed ten years." The land use assumptions estimate that growth between 2023 and 2032 will include 13,942 new residential units (single family and multi -family combined) and 439 acres of non-residential development, estimated to include 3.8 million square feet of non- residential building area. The calculation assumes a non-residential floor area ratio (FAR) of 0.2. September 2022 Streets Facilities Infrastructure Improvements Plan Page 11 5. REVENUE CONSIDERATIONS Considering revenue, ARS §9-463.05(E)7 states that the IIP should include: "A forecast of revenues generated by new service units other than development fees, which shall include estimated state -shared revenue, highway users revenue, federal revenue, ad valorem property taxes, construction contracting or similar excise taxes and the capital recovery portion of utility fees attributable to development based on the approved land use assumptions, and a plan to include these contributions in determining the extent of the burden imposed by the development as required in subsection B, paragraph 12 of this section." In order to provide an equitable obligation of transportation impact fees, both costs and credits must be considered. New development must be given credit for contributions to the various forms of funding which may be used for roadway improvements, such as the contribution of a development impact fee. Other sources of roadway infrastructure funding which can be identified as coming from a new development must be considered as credits for that development. Further, the costs associated with correcting existing deficiencies cannot be placed as a burden on new development. Any money spent from common improvement funds to address a deficiency must consider credits to new development for which the improvement is associated. At this time, the only continuing revenue source which may be considered as credits to new development is the construction sales tax. The Town currently has a 4.0% construction sales tax. The construction sales tax is nominally collected at the rate of 65% of the contract value, which is the presumptive proportion of the contract related to taxable building materials. The 4% rate includes the Town's base rate of 2% plus an additional 2% specific to contracting activities. For example, a typical new 2,000-square-foot single family home would have an estimated construction cost of $325,9121, and a related construction tax of $7,951.68. However, only half of the tax is creditable against the development fee, so the credit is $3,975.84, which is rounded up to $3,976. September 2022 Streets Facilities Infrastructure Improvements Plan Page 12 The calculation methodology and complete table of construction sales tax credits by impact fee category are included in Appendix B of this report. Note that the construction sales tax credit will be split between the streets facilities fee and the park fee in the development of the fee studies for the two infrastructure categories, as shown in Appendix B. The Town utilizes its HURF/VLT allocation solely for maintenance. Therefore, no credit will be provided for HURF/VLT funds. In addition, the Town does not have a property tax, and other state and federal revenues are undeterminable and intermittent. Therefore, the construction sales tax credit is the only source of credits considered in this study. September 2022 Streets Facilities Infrastructure Improvements Plan Page 13 6. REFERENCES 1 Transportation Impact Analysis. Town of Marana, November 2017. 2 Florida Quality and Level of Service Tables. Florida Department of Transportation, 2020. 3 Trip Generation, 10t" Edition. Institute of Transportation Engineers (ITE). Washington, D.C., 2017. 4 Summary of Travel Trends, 2009 National Household Travel Survey. Federal Highway Administration, July 2018. https://nhts.ornl.gov/assets/2017 nhts summary travel trends.pdf, accessed August 2022. 5 Street Facilities Infrastructure Improvements Plan, Final Public Report. Pima County, January 2020. 6 Building Valuation Data — February 2022. International Code Council, https://www.iccsafe.org/products-and-services/i-codes/code-development- process/building-valuation-data/, accessed March 2022. September 2022 Streets Facilities Infrastructure Improvements Plan Page 14 Appendix A List of Preparers Psomas Alejandro Angel, PhD, P.E., PTOE, RSP2; Darlene Danehy Yellowhair, P.E., PTOE, ENV SP, RSP2; Staff Participants Fausto Burruel, P.E., Public Works Director & Acting Town Engineer Jane Fairall, Town Attorney September 2022 Appendix B Methodology for Construction Sales Tax Credit 1. Assuming typical building materials for each representative impact fee category, construction costs were determined using the International Code Council cost valuation tables. 2. The construction sales tax is based on a state formula' which includes the Town construction sales tax (4%), the total tax rate for the area (10.1 % in Pima County2), and a percentage of the actual construction cost (65%) a. First, the formula includes a calculation of a tax factor on the overall tax burden: (65% x 10.1 %) / (1 + (65% x 10.1 %)) = 0.0616056 b. Next, the formula multiplies this factor by the portion of the total sales tax that is the Town's to determine an adjusted sales tax rate 0.0616056 x (4% / 10.1 %) = 2.4398% 3. State law requires that all tax revenue received above the Town's normal sales tax be credited against the development impact fees. For the Town, the normal sales tax is 2%, compared to the overall construction sales tax of 4%. Therefore, 50% of the construction sales tax should be applied as a credit against the impact fees. 4. For impact fee categories which are unit based, representative building sizes were used to develop estimated construction costs and associated taxes. The following average square footages include residential living areas and additional accompanying areas. a. Single family residence (general and age -restricted) — 2,000 sq ft of living space, 400 sq ft garage b. Multi -family residence (general and age -restricted) —1,115 sq ft total space per unit (rental) c. Hotel/motel — 550 sq ft of total space per unit (room) d. Congregate care — 350 sq ft of total space per unit (bed) 5. All other impact fees categories use 1,000 sq ft of construction for the construction tax credit, related directly to the impact fee burden, which is also calculated based on 1,000 sq ft. ' Formula is provided by the Arizona Department of Revenue (https://www.azdor.gov) 2 Total tax rate is 5.6% for the state + 4% for Marana construction + 0.5% for the RTA = 10.1 % September 2022 Construction Sales Tax Credit by Impact Fee Category ImpactICC Category Single Family Residence R3 - residential one and two family Type 5b sq ft mim $150.87 $150.87 ft 2,000 Cost $325,912.00 Total sales tax $7,951.68 Creditable Sales Tax $3,976.00 Credit for Parks Fee $500.00 Credit for Streets Fee $3,476.00 U - utility (garage) 5b $60.4 $$60.43 400 Multi -Family Residence R2 - residential multi -family 5b $139.06 $139.06 1,115 $155,051.90 $3,783.00 $1,892.00 $500.00 $1,392.00 Single Family Residential (age restricted) R3 - residential one and two family 5b $150.87 $150.87 2,000 $325,912.00 $7,951.68 $3,976.00 $500.00 $3,476.00 U - utility (garage) 5b $60.43 $60.43 400 Multi -Family (age restricted) N/A 5b $139.06 $139.06 1,115 $155,051.90 $3,783.00 $1,892.00 $500.00 $1,392.00 Hotel/Motel R1- residential hotels 5b $178.00 $178.00 550 $97,900.00 $2,388.59 $1,195.00 $100.00 $1,095.00 Congregate Care 12 - institutional, nursing homes 3a $354.29 $267.77 355 $95,058.35 $2,319.26 $1,160.00 $100.00 $1,060.00 R4 - care/assisted living 5a $181.25 Retail Services M - mercantile 3b $137.88 $137.88 1,000 $137,880.00 $3,364.03 $1,683.00 $100.00 $1,583.00 High Traffic Retail B - business 3b $187.36 $187.36 1,000 $187,360.00 $4,571.26 $2,286.00 $100.00 $2,186.00 Industrial B - business 3b $187.36 $187.36 1,000 $187,360.00 $4,571.26 $2,286.00 $100.00 $2,186.00 Office B - business 3b $187.36 $187.36 1,000 $187,360.00 $4,571.26 $2,286.00 $100.00 $2,186.00 Medical 12 - institutional, hospitals 1b $392.40 $392.40 1,000 $392,400.00 $9,573.88 $4,787.00 $100.00 $4,687.00 Institutional A3 - assembly, churches 3b $234.07 $210.47 1,000 $210,466.67 $5,135.02 $2,568.00 $100.00 $2,468.00 E - educational 3b $205.54 A3 - assembly, libraries, museums, community halls, general 3b $191.79 Recreation A3 - museums, libraries I 3b $191.79 $191.79 1,000 $191,790.00 $4,679.34 1 $2,340.00 $100.00 $2,240.00 September 2022 Appendix C Assessed Costs by Project and Service Area Road Proje Marana Main Street Sandario Rd '�Ew Grier Rd Project Type New Lanes 2 lassification Collector Before Improvements 0 Volume 0 Existing Capacity N/A Future Volume 3,000 Future Capacity 13,990 Development 3,000 %crf� d. Use by 21% Total Cost of New Improvement Two -Lane y $ 3,255,000 O.tstat.1 'in. Cred / Cost of hicular Irnprov (80%) Cost .1 imp Cost Attributable to Devoloment ty used) $ 3,255,000 Marana Main Street Tangeriinde Farms Sandario Rd Legacy 2 Collector 0 1,000 16,730 4,300 16,730 3,300 20% $ 873,000 $ 873,000 Tangerine Farms Road 1-10 (Tangerine TI) Clark Farms Legacy 4 Arterial 0 13,500 37,610 27,500 37,610 14,000 37% $ 3,018,397 $ 3,018,397 Clark Farms Riccati Dr Despain Dr Legacy 3 Collector 0 3,200 17,567 8,700 17,567 5,500 31% 3 Tangerine Farms Road Clark Farms I-10 (Marana TI) New 4 Arterial 0 0 N/A 10,000 30,620 10,000 33% $ 15,977,000 $ 7,484,400 $ 7,484,400 cMarana Road N/A N/A Interchange N/A N/A N/A N/A N/A N/A N/A N/A 100% $ 6,753,000 $ 6,753,000 z Interchange, Phase 1 Reconstruct Clark Farms Despain Dr Lon Adams Rd New 3 Collector 0 0 N/A 10,000 14,690 10,000 68% 5 4,520,000 $ 3,616,000 $ 904,000 $ 3,365,622 Clark Farms Lon Adams Rd Tangeriinde Farms New 4 Collector 0 0 N/A 9,000 30,620 9,000 29% $ 25,313,000 $ 11,774,700 $ 11,774,700 Adonis Road Grier Rd Tangerine Rd New 2 Collector 0 0 N/A 10,000 15,930 10,000 63% $ 20,601,000 $ 16,480,800 $ 4,120,200 $ 14,465,963 Tangerine Road N/A N/A Interchange N/A N/A N/A N/A N/A N/A N/A N/A 100% $ 4,500,000 $ 4,500,000 Interchange I Reconstruct Tangerine Road, Phase Dove Mountain Town Limits Completed 4 Arterial 14,444 15,400 37,610 20,400 37,610 5,000 13% $ 6,189,000 $ 4,951,200 $ 1,237,800 $ 1,896,029 1 Blvd Capacity Tangerine Road, Phase 1-10 (Tangerine Dove Mountain Improvement 4 Arterial N/A 8,000 16,730 14,000 37,610 6,000 16% $ 42,537,000 $ 34,029,600 $ 8,507,400 $ 13,936,211 2 TI) Blvd Twin Peaks Road Lambert Ln Tangerine Rd Completed 4 Arterial 0 16,000 37,610 23,500 37,610 23,500 62% $ 3,642,259 $ 3,642,259 Capacity r Moore Road Camino De 7hornydale Rd Completed 2 Collector 0 3,000 13,990 7,000 16,730 7,000 42% $ 291,788 $ 291,788 z° Oeste Capacity Cayton Road Dove Mountain Thornydale Rd New 2 Collector 0 0 N/A 5,400 13,990 5,400 39% $ 6,630,000 $ 6,630,000 Blvd Tangerine Road N/A N/A Interchange N/A N/A N/A N/A N/A N/A N/A N/A 100% $ 1,500,000 $ 1,500,000 Interchange Reconstruct Twin Peaks Interchange N/A N/A Legacy N/A N/A N/A N/A N/A N/A N/A N/A 100% $ 3,757,886 $ 3,757,886 Twin Peaks Road k1O Lambert Ln Legacy 4 Arterial 0 22,000 37,610 33,000 37,610 111000 29% Twin Peaks Road/ Saguaro Silverbell Rd Expansion 4 Collector N/A 12,500 16,730 22,700 37,610 10,200 27% $ 18,001,838 $ 14,401,470 $ 3,600,368 $ 7,506,111 Rattlesnake Pass Highlands Dr Cortaro Road I-10 Camino de Completed 4 Arterial 23,000 25,000 37,610 29,000 37,610 4,000 11% $ 8,134,735 $ 6,507,788 $ 1,626,947 $ 2,319,081 o Oeste Capacity u, Silverbell Road Ina Rd Cortaro Rd Completed 4 Arterial 9,800 14,000 37,610 22,500 37,610 8,500 23% $ 21,068,682 $ 16,854,946 $ 4,213,736 $ 8,023,017 Capacity Ina Road 1-10 Silverbell Rd Completed 4 Arterial 12,848 26,000 16,730 32,300 37,610 6,300 17% $ 91000,000 $ 7,200,000 $ 1,800,000 $ 3,006,062 Capacity Silverbell Road Ina Rd Sunset Rd I Expansion 1 4 Arterial N/A 10,0001 16,730 16,000 37,610 6,000 1 16% $ 8,013,159 $ 6,410,527 $ 1,602,632 $ 2,625,316 September 2022 Town of Marana MARANA AZ Impact Fee Study Update and Parks Infrastructure Improvement Plan Public Report — FINAL As approved by Marana Town Council September 20, 2022 Prepared by Town of Marana Parks and Recreation Department Town of Marana Engineering Division McGann & Associates, Landscape Architects September 20, 2022 Town of Marana FICA 24079 DONALD K. McGANN 9/15/22, Impact Fee Study Update and Parks Infrastructure Improvement Plan Public Report — FINAL As approved by Marana Town Council September 20, 2022 Prepared by Town of Marana Parks and Recreation Department Town of Marana Engineering Division McGann & Associates, Landscape Architects September 20, 2022 Town of Marana Mavor and Council Ed Honea — Mayor Jon Post —Vice Mayor Patti Comerford — Councilmember Herb Kai — Councilmember Roxanne Ziegler—Councilmember John Officer — Councilmember Jackie Craig—Councilmember Key Staff Terry Rozema —Town Manager Fausto Burruel, P.E. — Public Works Director and Acting Town Engineer Jane Fairall, Town Attorney Jim Conroy, Director, Parks and Recreation Department Wayne Barnett, Deputy Director, Parks and Recreation Department Project Consultants (As subconsultant to Psomas) McGann & Associates Inc. Landscape Architects 6814 North Oracle Road, Suite 210 Tucson, Arizona 85704 (520) 297-9540 Town of Marana Impact Fee Study Update and Parks Infrastructure Improvement Plan September 20, 2022 Acknowledgements Table of Contents and List of Figures Table of Contents Part 1— Introduction and Methodology 1. Introduction.......................................................................................................................................1-1 2. Methodology......................................................................................................................................2-1 3. Service Area........................................................................................................................................3-1 4. Inventory of Existing Parks and Replacement Value..........................................................................4-1 5. Allocation of Asset Value to Residential and Non -Residential Land Uses.........................................5-1 Part 2 — Impact Fee Calculation for Residential Development 6. Service Units — Residential Development..........................................................................................6-1 7. Necessary Public Services - Existing...................................................................................................7-1 8. Projected Service Units for New Development.................................................................................8-1 9. Projected Impact Fee Revenue January 1, 2023 to December 31, 2032...........................................9-1 10. Service Units — Non -Residential Development................................................................................10-1 Part 3 — Impact Fee Calculation for Non -Residential Development 11. Park Impact Fee— Non -Residential Development...........................................................................11-1 12. Projected Park Impact Fee Revenue — Non -Residential Development (1/1/23 to 12/31/32)......... 12-1 Part 4 — Parks Capital Improvement Program 13. Park Impact Fee Revenue — Residential and Non -Residential Development..................................13-1 14. Necessary Public Services — Capital Improvement Plan...................................................................14-1 15. Summary of Projected Revenues, Planned Costs, and Impact Fees................................................15-1 Town of Marana Impact Fee Study Update and Parks Infrastructure Improvement Plan Table of Contents September 20, 2022 and List of Figures Table of Contents and List of Figures List of Figures: Part 1— Introduction and Methodology Figure1: Methodology Flow Chart.............................................................................................................2-2 Figure2: Service Area.................................................................................................................................3-1 Figure 3: Inventory Table - Existing Parks and Replacement Value............................................................4-2 Figure4: Cost Allocation..............................................................................................................................5-1 Figure 5: Asset Value by Land use Type.......................................................................................................5-1 Part 2 - Impact Fee Calculation for Residential Development Figure 6: Service Units as Equivalent Demand Units...................................................................................6-1 Figure 7: Total Quantity of Equivalent Demand Units (EDU's) —January 1, 2023.......................................6-2 Figure 8: Existing Park Value by Equivalent Demand Unit...........................................................................7-1 Figure 9: Park Equivalent Demand Units (1/1/23 to 12/31/32)..................................................................8-1 Figure 10: Projected Park Impact Fee Revenue (1/1/23 to 12/31/32)........................................................9-1 Figure 11: Projected Park Impact Fee Revenue (1/1/23 to 12/31/32)........................................................9-2 Part 3 — Impact Fee Calculation for Non -Residential Development Figure 12: Jobs per 1,000 S.F. — Non -Residential Land Uses......................................................................10-1 Figure 13: New Job Projections (1/1/23 to 12/31/32)...............................................................................10-1 Figure 14: Non -Residential Impact Fee Per Job (Without Development Type Classification)...................11-1 Figure 15: Non -Residential Impact Fee Per 1,000 S.F. of Development Before Credits............................11-1 Figure 16: Non -Residential Impact Fee Per 1,000 S.F. of Development After Credits..............................11-1 Figure 17: Projected Impact Fee Revenues — Non -Residential Development...........................................12-1 Part 4 — Capital Improvement Program Figure 18: Projected Impact Fee Revenues — Residential and Non -Residential Development .................13-1 Figure 19: Parks Capital Improvement Plan (1/1/23 to 12/31/32)............................................................14-1 Figure 20: Summary of Projected Revenues and Planned Costs...............................................................15-1 Figure 21: Summary of Park Impact Fees..................................................................................................15-1 Town of Marana Impact Fee Study Update and Parks Infrastructure Improvement Plan Table of Contents September 20, 2022 and List of Figures Impact Fee Study Update and Parks Infrastructure Improvement Plan Part 1 Introduction and Methodology 1. Introduction Introduction: In accordance with Arizona Revised Statute (ARS) §9-463.05 the Town of Marana assesses and collects Development Impact Fees to help pay for the construction of new parks and recreational facilities as needed to meet the increased demands placed on the municipal park system by new development. As a precedent to the collection of Development Impact Fees, §9-463.05 requires that an Infrastructure Improvement Plan (IIP) be prepared to identify the required improvements. Per the subject statute, the IIP is defined as: ".... a written plan that identifies each necessary public service or facility expansion that is proposed to be the subject of a development fee and otherwise complies with the requirements of this section and may be the municipality's capital improvements plan." Included in this document is the Town of Marana's updated Park Infrastructure Improvement Plan. This new IIP replaces the 2017 IIP which was adopted by Marana Resolution 2017-090 on September 19, 2017. This new plan includes fee schedules and a list of capital improvements that are projected to be constructed over the next ten years. Town of Marana Impact Fee Study Update and Parks Infrastructure Improvement Plan September 20, 2022 1-1 2. Methodology Methodology: This Impact Fee Study Update employs an incremental expansion method that identifies the Town's existing level of service and projects the level of service assumptions over the next ten years as the community grows. The existing level of service for parks and recreation facilities is assigned a value based on the cost of replacement. The value of the parks and recreation system is adjusted to subtract outstanding debt on existing facilities, the balance collected, unspent impact fees, developer fee credits and the cost of the Impact Fee Study. Demand for an expanded park system will be driven by both residential and non- residential development. The primary driver will be residential development. As new homes are built in the community, the residents that occupy these homes will use the various park resources available to them. The secondary driver will be new non-residential development. As offices, retail outlets, medical offices, and other non-residential facilities are constructed, these facilities will create jobs for individuals including those living outside of the Town. These employees will use Town Park facilities before or after work or during lunch-time breaks. Based on the above, the service units for residential development will be Equivalent Dwelling Units (EDU's). The service unit for non-residential development will be 1,000 S.F. of Non -Residential Development. The adjusted value of the existing parks and recreation facilities is then distributed across the existing level of community development to calculate a value of the existing parks system per service unit. The adjusted value of the existing parks and recreation facilities relative to current development is then projected onto new development using estimates for future development found in the Town's land use assumptions. Using this methodology, the Town's existing level of parks and recreation service is maintained as the community grows and the expansion of parks and recreation facilities necessary to meet the demand of growth has a supplemental funding source in development impact fees. The advantages of using this incremental expansion method over other methods (e.g., a general standards based or plan -based method), include the following: • The fee is based on the existing level of service provided by the Town instead of a national standard that fails to account for local jurisdictional variations. The incremental expansion method more accurately identifies the value of existing level of service compared to estimating a general cost per acre of developed parkland. Existing level of service is valued by assigning replacement costs to inventoried park assets. • The incremental expansion method is flexible because the impact fee is based on existing level of service. Consequently, the Town may fine tune capital improvements identified in the IIP to meet changing community recreation needs. A standards -based approach based on the Parks and Recreation Master Plan would require an update to the Master Plan and a re -calculation of the impact fees to meet changing community needs. Town of Marana Impact Fee Study Update and Parks Infrastructure Improvement Plan September 20, 2022 2-1 2. Methodology Figure 1: Methodology Flow Chart Inventory Park Assets Identify Replacement Value of Park Assets Calculate Net Value of Park Assets for Non -Residential Uses Forecast New Non - Residential Development (1/1/23 to 12/31/32) Based on Land Use Assumptions Calculate Impact fee for Non -Residential Development and Adjust for Credits Town of Marana Impact Fee Study Update and Parks Infrastructure Improvement Plan September 20, 2022 Identify Service Area Identify Residential vs. Identify Quantity of Existing Non -Residential Use of Housing Units within Service Parks Area Allocate Projected Demand to Residential/ Non - Residential Development Forecast Impact Fee Revenues (1/1/23 to 12/32/32) Identify Planned Costs to be Offset by Impact Fee Revenues Adjust Quantity of Households to reflect Dwelling Types Identify Equivalent Demand Units (EDU's) 1/1/23 Calculate Net Value of Park Assets per EDU Forecast New EDU's (1/1/23 to 12/31/32) Based on Land Use Assumptions Calculate Impact Fee for Residential Development and Adjust for Credits 2-2 3. Service Area Service Area: Service areas are defined in AIRS §9-463.05 (T)9 as: "... any specified area within the boundaries of a municipality in which development will be served by necessary public services or facility expansions and within which a substantial nexus exists between the necessary public services or facility expansions and the development being served as prescribed in the infrastructure improvements plan." For purposes of this Impact Fee Study Update, there is one service area identified for the Town of Marana. This service area is shown in Figure 2, below. The service area includes all areas within the jurisdictional boundaries of the Town with the exception of lands within the Dove Mountain Specific Plan boundary. The Dove Mountain area is excluded based on a Town approved Development Agreement. For the remainder of the Town, the most densely developed areas are where existing municipal parks and recreation facilities are located. These densely developed areas are served by the Town's existing parks and other recreation facilities. It is in areas of new development that park and recreation facility expansion is needed to meet the demands created by growth. Figure 2: Service Area ------------------------ Pima County o � 1,19 t ; ` za - Y Marana Park Impact Fee !;!ARA!!A^= Benefit Areas Marana Park Benefit Area I ID Lit a^ Town of Marana Impact Fee Study Update and Parks Infrastructure Improvement Plan September 20, 2022 3-1 3. Service Area Consequently, new facilities that expand the parks and recreation system will directly benefit residents in areas of new growth in keeping with the legislative requirements for collecting development impact fees. There is, however, a need for additional trails to serve the developed areas of Marana. Since the Town is committed to providing a uniform level of service across the entire town, a single service area will be used. Town of Marana Impact Fee Study Update and Parks Infrastructure Improvement Plan September 20, 2022 3-2 4. Inventory of Existing Parks and Replacement Value Inventory of Existing Parks: Provided on the following pages is a chart that summarizes the assets associated with the Town of Marana's existing park system. It includes only improvement types that would be eligible for impact fee funding and excludes items not eligible based on ARS §9-463.05. Per ARS §9-463.05.A, development impact fees may be used: "... to offset costs to the municipality associated with providing necessary public services to a development, including the costs of infrastructure, improvements, real property, engineering and architectural services, financing and professional services required for the preparation or revision of a development fee pursuant to this section, including the relevant portion of the infrastructure improvement plan." Per ARS §9-463.05.B and 9-463.05.T., development impact fees may not be used for: "Construction, acquisition or expansion of public facilities or assets other than necessary public services or facility expansions identified in the infrastructure improvements plan." "Repair, operation or maintenance of existing or new necessary public services or facility expansions." "Upgrading, updating, expanding, correcting or replacing existing necessary public services to serve existing development in order to meet stricter safety, efficiency, environmental or regulatory standards." "Upgrading, updating, expanding, correcting or replacing existing necessary public services to provide a higher level of service to existing development." "Administrative, maintenance or operating costs of the municipality." "... vehicles, equipment or that portion of any facility that is used for amusement parks, aquariums, aquatic centers, auditoriums, arenas, arts and cultural facilities, bandstand and orchestra facilities, bathhouses, boathouses, clubhouses, community centers greater than three thousand square feet in floor area, environmental education centers, equestrian facilities, golf course facilities, greenhouses, lakes, museums, theme parks, water reclamation or riparian areas, wetlands, zoo facilities or similar recreational facilities, but may include swimming pools." Replacement Value: Replacement values as shown on the following chart are based on: Replacement values identified in the 2017 plan escalated to reflect inflation in construction costs through January 1, 2023. • Recent park construction project bids for similar facilities. • Published construction cost data reports. Town of Marana Impact Fee Study Update and Parks Infrastructure Improvement Plan September 20, 2022 4-1 4. Inventory of Existing Parks and Replacement Value Figure 3: Inventory Table - Existing Parks and Replacement Value z U m N O Y O f0 U [L Y CL N N C N O N U ,p L a O v ��i1 N = U N o O -E - tlq Y v to Lu Z 0. C" L LL N -O Y f6 C7 [L ,� L v a Y O O S [L E cM G Y i f6 O [1 E O m 7 Y f0 f0 N CL U (6 N a tl0 Y f0 f0 F CL -O Y f0 N C1 o 7 M -O L i H 1 N L t6 i N F o U> N Y N L O O i Z CO F _ LL O H> U f0 N N (0 v v O v c0 H 1' > Acres (Total) 11.9 9.23 48.27 1.3 25.7 1.0 34.72 22.0 13.49 17.98 4.23 2.0 0.8 1.5 194.12 Acres (Eligible) 11.9 9.23 30.0 1.3 25.7 1.0 30.0 22.0 13.49 17.98 4.24 2.0 0.8 1.5 171.14 Real Property Real Property - Eligible Park Sites 11.9 9.23 30.00 1.3 25.7 1 30.0 22.0 13.49 17.98 4.23 2.0 0.8 1.5 171.14 $30,000.00 $5,134,200.00 Buildings and Structures: Community Center - Allowable Portion (SF) 3,000 1 3,000 $450.00 $1,350,000.00 Restroom Buildings 1 1 3 3 3 1 1 1 1 16 $165,000.00 $2,640,000.00 Concessions 1 1 1 1 1 5 $235,000.00 $1,175,000.00 Operations and Maintenance Building 1 1 2 $470,000.00 $940,000.00 Storage Building 1 1 1 1 2 $180,000.00 $360,000.00 Group Ramada (+/- 30' x 60' - Site Built or Pre-Eng.)) 1 1 1 3 $130,000.00 $390,000.00 Picnic Ramada - (+/- 30' x 30' - Site Built or Pre-Eng.) 1 5 1 1 1 1 2 2 1 1 16 $85,000.00 $1,360,000.00 Picnic Ramada - Small - (Pre -Engineered) 4 1 1 6 2 2 1 1 1 17 $15,000.00 $255,000.00 Fields: Multi -Sport Rectangular Fields with Lights 2 2 1 5 $400,000.00 $2,000,000.00 Multi -Sport Rectangular Fields w/o Lights 2 1 3 $150,000.00 $450,000.00 Slow Pitch Softball Fields with Lights 1 1 2 $560,000.00 $1,120,000.00 Fast Pitch Softball Fields with Lights 2 4 6 $355,000.00 $2,130,000.00 Fast Pitch Softball Fields w/o Lights 4 2 1 9 $200,000.00 $1,800,000.00 Courts: Basketball Courts - with Lights 2 1 2 1 1 1 8 $150,000.00 $1,200,000.00 Basketball Courts - w/o Lights .5 .5 1 1 2 $70,000.00 $140,000.00 Tennis Courts - with Lights 2 1 1 1 5 $150,000.00 $750,000.00 Tennis Courts - w/o Lights 1 1 $95,000.00 $95,000.00 Pickleball Courts - with Lights 3 3 $65,000.00 $195,000.00 Pickleball Courts - w/o Lights 0 $40,000.00 $0.00 Sand Volleyball Courts - with Lights 2 1 3 $36,000.00 $108,000.00 Sand Volleyball Courts - w/o Lights 1 1 $17,000.00 $17,000.00 Playgrounds and Play Structures: Play Structures / Surfacing (2-5 Year) 1 1 2 1 1 2 1 1 1 11 $165,000.00 $1,815,000.00 Play Structures / Surfacing (5-12 Year) 1 1 1 1 1 1 1 1 1 9 $125,000.00 $1,125,000.00 Swings / Surfacing 1 1 1 1 1 1 1 1 1 9 $50,000.00 $450,000.00 Zip Line 1 1 $80,000.00 $80,000.00 Fabric Shade Canopies 2 1 2 1 8 2 2 1 19 $30,000.00 $570,000.00 Special Use Facilities: Off -Leash Dog Park 1 1 1 1 1 5 $250,000.00 $1,250,000.00 Skate / Wheel Park 1 1 $1,200,000.00 $1,200,000.00 Aquatic Facilities: Swimming Pool 1 1 $5,000,000.00 $5,000,000.00 Splash Pad 1 1 2 $500,000.00 $1,000,000.00 Town of Marana Impact Fee Study Update and Parks Infrastructure Improvement Plan September 20, 2022 4-2 4. Inventory of Existing Parks and Replacement Value Figure 3: (Continued) Inventory Table - Existing Parks and Replacement Value ~ c f0 to c C c U a v v N ro c C c V Q L 6 n a �c - OL L O> U to _0 YO -0 a z ac W a- Y E m v C7 Y a to L no (0 0 2 a E a� N O Y M E 00 _ m O ti4 fa (n Y @ a m 7 c ro to d Y V) c to c fa>� Y LL J ccu G -O > 00 r 'fi H O m "O Zi N O z O L o1 L cn Co v C L p U N i'' L Z c T LL M O 3 i E U C fl E' V p f0 r+ O _7 ns Miscellaneous Public Use Facilities: Horseshoe Pits 2 2 1 5 $3,000.00 $15,000.00 Benches 10 6 7 1 15 22 10 12 8 4 1 2 98 $750.00 $73,500.00 Picnic Tables 8 10 32 1 14 7 39 4 6 13 1 2 137 $1,450.00 $191,800.00 Barbecue Grills 2 4 8 3 2 9 5 6 1 40 $600.00 $24,000.00 Bleachers 8 2 6 2 1 5 2 26 $3,000.00 $78,000.00 Exercise Stations - Fitness Area 1 10 6 17 $1,500.00 $25,500.00 Trash Receptacles 14 8 43 3 9 4 52 10 10 10 2 1 166 $300.00 $49,800.00 Drinking Fountains 7 4 8 1 3 3 8 3 1 1 1 40 $3,500.00 $140,000.00 Bicycle Racks 1 1 1 1 3 1 1 1 1 1 1 12 $800.00 $9,600.00 Supporting Infrastructure: miff IL Park Access / Circulation Drives (LF) 1,500 430 3,000 107 1 3,160 400 2,200 1,100 950 1,300 1 330 14,477 $85.00 $1,230,545.00 Paved Parking Spaces (EA) 133 59 305 9 231 12 202 67 51 60 79 1 27 1,1,243 $1,250.00 $1,553,750.00 Electrical Service - Average (Acre) 171.14 $11,000.00 $1,882,540.00 Potable Water Service - Average (Acre) 171.14 $2,000.00 $342,280.00 Sanitary Sewer System - Private / On -Site (Acre) 171.14 $2,500.00 $427,850.00 Fencing (Acre) 171.14 $7,350.00 $1,257,879.00 Signage (Acre) 171.14 $3,000.00 $513,420.00 Parking Lot and Security Lighting (Acre) 171.14 $14,000.00 $2,395,960.00 Irrigation Booster Pumps 1 1 1 1 1 4 1 $10,000.00 $40,000.00 Landscape and Irrigation: Landscape - Turf Areas Other than Fields (Acres) 2.7 1.9 2.34 .32 1.21 .02 9.96 .77 2.68 .97 1.5 24.37 $30,000.00 $731,100.00 Landscape - Trees(EA) 75 40 407 15 239 15 110 25 72 50 24 20 1,092 $300.00 $327,600.00 Turf Irrigation System - Other than Fields (SF) 2.7 1.9 2.34 .32 1.21 .02 9.96 .77 2.68 .97 1.5 24.37 $22,000.00 $536,140.00 Drip Irrigation System (Acres) 171.14 $3,500.00 $598,990.00 Automated Irrigation Control System - Med - Large 1 1 1 1 1 1 1 1 1 9 $7,500.00 $67,500.00 Automated Irrigation Control System - Small 1 1 1 1 4 $2,500.00 $10,000.00 Hardscape / Pedestrian Paving: Accessible Walkways - Concrete (LF) 3,300 1,100 6,500 2,770 520 5,300 2,050 960 2,400 220 25,120 $48,00 $1,205,760.00 HC Ramps 2 2 3 6 1 3 6 2 2 1 28 $900.00 $25,200.00 Pathways and Trails: Loop Shared -Use Pathways 18.22 $400,000.00 $7,288,000.00 Loop Road / Highway Underpasses 3 $300,000.00 $900,000.00 In -Park Shared -Use Pathways - Asphalt (LF) 450 6.850 500 2,600 3,200 3,150 9,900 $15.00 $148,500.00 In -Park Decomposed Granite Pathways (LF) 2,700 2,700 $4.00 $10,800.00 Single Track Trails (Miles) 45.6 $93,500.00 $4,263,600.00 Total $57,329,614.00 Town of Marana Impact Fee Study Update and Parks Infrastructure Improvement Plan September 20, 2022 4-3 5. Allocation of Asset Value to Residential and Non -Residential Land -Uses Allocation of Asset Value: ARS §9-463.05(B)13 provides: If development fees are assessed by a municipality, the fees shall be assessed against commercial, residential and industrial development... In -as -much as residential and non-residential development will impact the need for additional parks, it is necessary to allocate asset value to each so that a proportionate share can be assessed to each type of development. This allocation is based on Residential Hours and Non -Resident (Inflow Commuter) Hours each year. The Inflow Commuter Hours are hours non-residents will spend at jobs within the Town. According to U.S. Census Bureau web application OnTheMap (2019 US Census), there are 10,640 Inflow Commuters working within the Town of Marana. The 2019 Census also identifies the resident population of Marana to be 49,030. Based on this data, the allocation of asset value is calculated as follows: Figure 4: Cost Allocation Hour Allocation Cost Allocation Marana Inflow Residential Non- Total Hours Residential Non - Residents Commuters Hours (*) Residential Residential (2019 (2019 Hours (**) Census) Census) 49,030 10,064 429,502,800 16,102,400 445,605,200 96% 4% (*) Residential Hours / Year: 8,760 (24 Hours / Day x 365 Days) (**) Non -Residential Hours / Year: 1,600 (50 Weeks / Year x 4 Days per Week x 8 Hours / Day) Based on the total park asset value of $57,329,614.00 (See Section 4) and the cost allocation noted above, the asset value allocated to residential and non-residential land uses is as follows: Figure 5: Asset Value by Land use Type Land Use Type Total Asset Value Cost Allocation (%) Asset Value Residential $57,329,614.00 96% $55,036,429. Non -Residential $57,329,614.00 4% $2,293,185. Town of Marana Impact Fee Study Update and Parks Infrastructure Improvement Plan September 20, 2022 5-1 Impact Fee Study Update and Parks Infrastructure Improvement Plan Part 2 Impact Fee Calculation for Residential Development 6. Service Units — Residential Development Service Units - Residential: AIRS §9-463.05 requires that service units be defined in an impact fee study and used as the basis for impact fee collection. This Impact Fee Study uses an Equivalent Demand Unit (EDU) as the service unit for the park impact fee for residential uses. To calculate an EDU, housing unit types are weighted in relation to single-family detached housing. The weight of each housing type reflects a park service multiplier derived from the average household size for each housing type based on United States Census Bureau statistics. The average household size for a single- family detached housing unit is 2.7 while the average household size of a multi-family/single-family attached housing unit is 1.8. The park service multiplier for a single-family detached residence is therefore 1.0 while the park service multiplier for a multi-family/single-family attached dwelling unit is 0.67. The sum of these weighted dwelling units by housing type results in total EDUs for the Town. Unlike impact fee studies for parks improvements, impact fee studies for transportation infrastructure expansion often use land use categories that are identified through analysis of vehicle usage and trip data that is available locally and is part of published transportation planning literature. Because there is no data on visits to existing parks, the Impact Fee Study for Parks and Recreation Facilities makes use of the differentiation between single-family and multi -family residential units and their average household sizes to fine tune the definition of service units for the purpose of establishing a park impact fee. Figure 6: Service Units as Equivalent Demand Units Housing Type Average Household Size Equivalent Demand Units (Persons) Single Family Detached 2.7 (*) 1.00 Multi -Family / Single Family 1.8 (*) 0.67 Attached (*) Reference: U.S. Census Bureau Town of Marana Impact Fee Study Update and Parks Infrastructure Improvement Plan September 20, 2022 6-1 6. Service Units — Residential Development Figure 7: Total Quantity of Existing Equivalent Demand Units (EDU's) - January 1, 2023: Housing Type Dwelling Units (January 1, 2023) Multiplier Service Units (EDU's) (January 1, 2023) Single Family Detached 16,679 1.00 16,679 Multi -Family / Attached 2,220 0.67 1,487 Total - January 1, 2023 18,166 Town of Marana Impact Fee Study Update and Parks Infrastructure Improvement Plan September 20, 2022 6-2 7. Necessary Public Services - Existing Necessary Public Services - Existing: As required in ARS §9-463.05(E)1, an IIP must include: "A description of the existing necessary public services in the service area and the costs to upgrade, update, improve, expand, correct or replace those necessary public services to meet existing needs and usage and stricter safety, efficiency, environmental or regulatory standards, which shall be prepared by qualified professionals licensed in this state, as applicable." In addition, ARS §9-463.05(E)2 requires: "An analysis of the total capacity, the level of current usage and commitments for usage of capacity of the existing necessary public services, which shall be prepared by qualified professionals licensed in this state, as applicable." In response to the required analysis of existing, necessary public park services, an inventory of parks and recreation assets throughout the Town of Marana has been compiled. (See Section 4 of this document). The inventory was based on data provided by the Town of Marana Parks and Recreation Department and lists existing park amenities by facility (site) with an identified replacement cost. The inventory excludes park acreage beyond the 30-acre limit referenced in ARS §9463.05(T)7(g). The existing level of service provided by the Town's current parks and recreation facilities is quantified by distributing the value of the existing parks and recreation facilities over the total number of existing EDUs in the Town. The existing number of EDUs is described in Figure 5. Figure 3 describes the total value of existing parks and recreation infrastructure. The existing level of service provided by the Town of Marana's park infrastructure is quantified by dividing the total value of the existing infrastructure (See Section 4) by the existing number of EDUs (Figure 5). Figure 8: Existing Park Value by Equivalent Demand Unit Credits Offsets Total Total Replacement Value * $55,036,429.00 Impact Fee Account Balance $150.00 Outstanding Impact Fee Credits $0.00 Outstanding Park Debt $0.00 Subtotal $55,036,279.00 Adjusted Existing Park Value $55,036,279.00 Divided by EDU 18,166 Net Value per EDU $3,029.63 (* As allocated to residential development) Town of Marana Impact Fee Study Update and Parks Infrastructure Improvement Plan September 20, 2022 7-1 8. Projected Service Units for New Development Projected Service Units for New Development: ARS §9-463.05(E)5 requires and IIP to include: "The total number of projected service units necessitated by and attributable to new development in the service area based on the approved land use assumptions and calculated pursuant to generally accepted engineering and planning criteria." The Town of Marana has developed Land Use Assumptions that estimate the number of new dwelling units expected over the next ten years. Figure 9 presents the existing and future dwelling units in the 10-year window based on the Town's Land Use Assumptions. The final result is the number of new EDUs expected over the next ten years. Figure 9: Park Equivalent Demand Units (January 1, 2023 to December 31, 2032) Housing Type Dwelling Units (1/1/23) Park Service Unit Multiplier Service Units - EDU's (1/1/23) Single Family Detached 16,679 1.00 16,679 Multi -Family / Single Family Attached 2,220 0.67 1,487 Total EDU's - (1/1/23) 18,166 Housing Type Dwelling Units (12/31/32) Park Service Unit Multiplier Service Units - EDU's (12/31/32) Single Family Detached 28,361 1.00 28,361 Multi -Family / Single Family Attached 4,480 0.67 3,002 Total EDU's - (12/31/32) 31,363 New EDU's (1/1/23 to 13/31/32) 13,197 Town of Marana Impact Fee Study Update and Parks Infrastructure Improvement Plan September 20, 2022 8-1 9. Projected Park Impact Fee Revenue (January 1, 2023 to December 31, 2032) Projected Park Impact Fee Revenue (January 1, 2023 to December 31, 2032): ARS §9-463.05(E)6 requires an IIP to include: "The projected demand for necessary public services or facility expansions required by new service units for a period not to exceed ten years." Figure 10 calculates the total expected revenue from impact fees collected between January 1, 2023 and December 31, 2032 based on the estimated number of new EDUs (Figure 9) and updated impact fee. The total projected revenue does not include development credits. Figure 10: Projected Park Impact Fee Revenue - (1/1/23 to 12/31/23) (Before Credits) Service Area New EDU's Impact Fee / EDU (Before Credits) Projected Revenue 1/1/23 to 12/31/32 (Before Credits) Town -wide 13,197 $3,029.63 $39,982,027.11 ARS §9-463.05(E)7 requires an IIP to include: "A forecast of revenues generated by new service units other than development fees, which shall include estimated state -shared revenue, highway users revenue, federal revenue, ad valorem property taxes, construction contracting or similar excise taxes and the capital recovery portion of utility fees attributable to development based on the approved land use assumptions, and a plan to include these contributions in determining the extent of the burden imposed by the development as required in subsection B, paragraph 12 of this section." The Town of Marana collects no property tax to include in revenue forecasts. However, the Town does collect a 4% construction sales tax and also receives revenue from the state related to gas taxes. It is recommended that Five Hundred Dollars ($500.00) of the sales tax be credited on a per EDU basis, resulting in a fee of Two Thousand Five -Hundred and Twenty -Nine Dollars and Sixty -Three cents ($2,529.63) per EDU. Figure 11 calculates the projected revenue and percent of planned costs covered by this revenue forecast. The remainder of the sales tax credit would be credited against the yet -to -be - calculated Street Facilities fee. It is recommended that the credits associated with HURF/VLT be applied fully to the street facilities fee. If approved, no additional credits would be applied to the Parks and Recreational Facilities fee. Town of Marana Impact Fee Study Update and Parks Infrastructure Improvement Plan September 20, 2022 9-1 9. Projected Park Impact Fee Revenue (January 1, 2023 to December 31, 2032) Figure 11: Projected Park Impact Fee Revenue - January 1, 2023 to December 31, 2032 (After Credits): Service Area New Impact Fee / EDU Projected Revenue (1/1/23 to 12/31/32) EDU's (Less the $500.00 Credit) Town -wide 13,197 $2,529.63 $33,383,527.00 In summary, the Impact Fee Update and Infrastructure Improvement Plan will result in a final calculation of the Impact Fee per EDU of Two Thousand Five -Hundred and Twenty -Nine Dollars and Sixty -Three Cents ($2,529.63). Town of Marana Impact Fee Study Update and Parks Infrastructure Improvement Plan September 20, 2022 9-2 Impact Fee Study Update and Parks Infrastructure Improvement Plan Part 3 Impact Fee Calculation for Non -Residential Development 10. Service Units - Non -Residential Development Service Units — Non -Residential Development: ARS §9-463.05 requires that service units be defined in an impact fee study and used as the basis for impact fee collection. This Impact Fee Study uses Jobs per 1,000 S.F. as the service unit for non-residential development. There are several categories of non-residential development, and each will result in a different quantity of jobs per square foot of development. These categories, and the quantity of jobs that will be created per 1,000 square foot of new development, are identified in the Land Use Assumptions (Table 4) and are summarized below. Figure 12: Jobs per 1,000 S.F. — Non -Residential Land Uses Non -Residential Land Use Category S.F. per Job Jobs per 1,000 S.F. of New Non -Residential Development Retail 600 1.67 High Traffic Retail 200 5.00 Office 400 2.50 Industrial 500 2.00 Hotel 1,800 0.56 Medical 500 2.00 The Land Use Assumptions (Table 5) also include projections of the quantity of jobs that will be created by new non-residential development. These projections are summarized below: Figure 13: New Job Projections (January 1, 2023 to December 31, 2032) Non -Residential Land Use Category New Jobs (From Land Use Assumptions) Retail 2,327 High Traffic Retail 2,212 Office 370 Industrial 2,993 Hotel - Medical 682 Total New Jobs 8,584 Town of Marana Impact Fee Study Update and Parks Infrastructure Improvement Plan September 20, 2022 10-1 11. Park Impact Fee — Non -Residential Development Park Impact Fee — Non -Residential Development: The park expansion and development costs allocated to non-residential development equals 4% of the cost of required improvements or $1,665,918.00. (4% x $41,647,945, the value of required improvement needed to maintain the current level of service). This cost will be borne by the 8,584 new jobs that will be created within the town, resulting in a fee of $194.00 per job. Figure 14: Non -Residential Impact Fees per Job (Without Development Classification) Total Cost Allocated to Non- Residential Development Projected Quantity of New Jobs (1/1/23 to 12/31/32) Non -Residential Impact Fee per Job $1,665,918.00 8,584 $194.00 To properly assess this fee, the quantity of jobs must be related to square feet of new development. Figure 15 below summarizes this calculation. Figure 15: Non -Residential Impact Fees per 1,000 S.F. of Development (Before Credits) Non -Residential Land Use Category Jobs per 1,000 S.F. of new Development Impact Fee per Job Impact Fee per 1,000 SF of New Non -Residential Development Retail 1.67 $194.00 $324.00 High Traffic Retail 5.00 $194.00 $970.00 Office 2.50 $194.00 $485.00 Industrial 2.00 $194.00 $388.00 Hotel 0.56 $194.00 $109.0 Medical 2.00 $194.00 $388.00 As noted in Section 9 of this report, the Town collects a 4% construction sales tax with these revenues contributing to park expansion and development. It is recommended that One Hundred Dollars ($100.00) of the sales tax revenue be credited on a per 1,000 S.F. of new non-residential development basis. With this credit, the adjusted impact fees, by development type, are identified below. Town of Marana Impact Fee Study Update and Parks Infrastructure Improvement Plan September 20, 2022 11. Park Impact Fee — Non -Residential Development Figure 16: Non -Residential Impact Fees Per 1,000 S.F. of Development (After Credits) Non -Residential Land Use Category Impact Fee per 1,000 S.F. of New Non -Residential Development Prior to $100.00 Adjustment Proposed Impact Fee per 1,000 S.F. of New Non -Residential Development Retail $324.00 $224.00 High Traffic Retail $970.00 $870.00 Office $485.00 $385.00 Industrial $388.00 $288.00 Hotel $109.0 $9.00 Medical $388.00 $288.00 Town of Marana Impact Fee Study Update and Parks Infrastructure Improvement Plan September 20, 2022 11-2 12. Projected Park Impact Fee Revenue — Non -Residential Development (January 1, 2023 to December 31, 2032) Projected Park Impact Fee — Non -Residential Development: The projected revenues to be collected from non-residential development fees for the period between 1/2/23 and 12/32/32 are summarized below. Figure 17: Projected Impact Fee Revenues — Non -Residential Development Non -Residential Land Use Category New Jobs Jobs per 1,000 S.F. Development Scope (1,000 S.F.) Fee per 1,000 S.F. Projected Revenue Retail 2,327 1.67 1,393 $224.00 $312,032.00 High Traffic Retail 2,212 5.00 442 $870.00 $384,540.00 Office 370 2.50 148 $385.00 $56,980.00 Industrial 2,993 2.00 1,497 $288.00 $431,136.00 Hotel - 0.56 0.00 $9.0 $0.00 Medical 682 2.00 341 $288.00 $98,208.00 Total Projected Revenue — Non -Residential Development $1,282,896.00 Town of Marana Impact Fee Study Update and Parks Infrastructure Improvement Plan September 20, 2022 12-1 Impact Fee Study Update and Parks Infrastructure Improvement Plan Part 4 Parks Capital Improvement Program 13. Park Impact Fee Revenue — Residential and Non -Residential Development Projected Park Impact Fee — Residential and Non -Residential Development: The combined revenues projected to be collected from both residential and non-residential development fees for the period between 1/2/23 and 12/32/32 are summarized below. Figure 18: Projected Impact fee Revenues — Residential and Non -Residential Development Projected Revenues — Residential Development $33,383,527.00 Projected Revenues — Non -Residential Development $1,282,896.00 Total Revenues (1/1/23 to 12/31/32) $34,666,423.00 Town of Marana Impact Fee Study Update and Parks Infrastructure Improvement Plan September 20, 2022 13-1 14. Necessary Public Services — Capital Improvement Plan Necessary Public Services - New Development: ARS §9-463.05(E)3 requires: "A description of all or the parts of the necessary public services or facility expansions and their costs necessitated by and attributable to development in the service area based on the approved land use assumptions, including a forecast of the costs of infrastructure, improvements, real property, financing, engineering and architectural services, which shall be prepared by qualified professionals licensed in this state, as applicable." In response to the statutory mandate for a description of parks and recreation facility expansion projects required to meet the demand of new growth, the Town of Marana has developed the Ten -Year Capital Improvement Plan for park facilities. This plan is summarized in Figure 19 below. Impact fees that are collected between January 1, 2023 and December 31, 2032 will be directed to the capital improvements identified in Figure 19 with the understanding that A.R.S. §9-463.05 allows that: "...a municipality may amend an infrastructure improvements plan adopted pursuant to this section without a public hearing if the amendment addresses only elements of necessary public services in the existing infrastructure improvements plan and the changes to the plan will not, individually or cumulatively with other amendments adopted pursuant to this subsection, increase the level of service in the service area or cause a development fee increase...". Figure 19 - Parks Capital Improvement Plan - January 1, 2023 to December 31, 2032: Project Development Cost El Rio Disc Golf Course $288,334.00 El Rio Recreation Area - Loop Access Parking Lot $204,237.00 Gladden Farms Baseball Field Improvements $660,765.00 Gladden Farms Lighted Soccer Fields $286,636.00 Tortolita Preserve Trailhead, Trails, and Fencing $156,181.00 Honea Heights Park - Phase 2 Improvements $1,261,461.00 Continental Ranch Park to Loop Extension $420,487.00 New Competition Swimming Pool (50 Meter) $3,934,557.00 Ora Mae Harn Park Facility Expansion $1,784,066.00 Saguaro Bloom Park - Phase 1 $1,600,375.00 Saguaro Bloom Park - Phase 2 $4,805,566.00 Gladden Farms Bike Park $1,201,391.00 Twin Peaks Park District Park - Land Acquisition and Phase 1 Development $17,415,052.00 Mandarina Community Park $7,568,766.00 Impact Fee Study $60,000.00 Total $41,467,945.00 Amount Funded by Parks Impact Fee $34,666,423.00 Amount Funded by Construction Sales Tax Credits $6,801,522.00 Additional Information related to these projects is provided below. Town of Marana Impact Fee Study Update and Parks Infrastructure Improvement Plan September 20, 2022 14-1 14. Necessary Public Services — Capital Improvement Plan El Rio Disc Golf Course: This project involves the construction of an 18-hole disc golf course. The course will provide a safe and appropriate location where this activity can occur. It will allow disc golf activities to be moved from other community parks, where it occurs on an informal basis, to this new location. The course will have the capacity to serve both existing users and new / future residents who engage in this recreational activity enabling the Parks and Recreation Department to maintain a consistent level of service. El Rio Recreation Area — Loop Access Parking Lot: The El Rio Recreation Area is a district or zone within the Town's Park system that includes (or will include) the El Rio Neighborhood Park, the El Rio Disc Golf Course, and portions of the Loop shared -use pathway. As the community's population grows, there will be increased demand for access to these facilities and other recreational facilities that can be accessed via the Loop. The proposed parking lot will allow the Town to continue to provide safe and legal access to these facilities consistent with the increased demand resulting from anticipated population growth. Gladden Farms Baseball Field Improvements: This project involves the installation of field lights and the construction of other related improvements that will change the fields from daytime -only use fields to daytime and evening use fields. The improvements will enable the Town to significantly expand the hours of operation and the number of teams / individuals who can use and benefit from access to this facility. It will help the Parks and Recreation Department to maintain a consistent level of service related baseball / softball field availability. Gladden Farms Park New Lighted Soccer Fields: The scope of the project includes the construction of two new natural turf, multi -sport / soccer fields within the existing boundaries of Gladden Farms Park. Improvements will include the fields, field lights to expand the potential hours of operation, and the parking area / restrooms required for public use. The project will increase the quantity of fields available to the community in response the anticipated increase in population and assist the Parks and Recreation Department in their efforts to maintain a consistent level of service related to multi -sport field availability. Tortolita Preserve Trailhead, Trails, and Fencing: As the population of the Town grows, there has been a steady increase in the number of residents using the Tortolita Preserve. The proposed Tortolita Preserve trailhead development and trail expansion project will enhance access, extend the length of the trail system, maintain site security, and allow additional residents to use this facility consistent with the increased demand resulting from population growth. Town of Marana Impact Fee Study Update and Parks Infrastructure Improvement Plan September 20, 2022 14-2 14. Necessary Public Services — Capital Improvement Plan Honea Heights Park — Phase 2 Improvements: The Honea Heights Park Phase 2 development project will include the construction of two new lighted multi -sport / soccer fields and supporting site improvements. The project will increase the quantity of fields available to the community in response the anticipated increase in population allowing the Parks and Recreation Department to maintain a consistent level of service. Continental Ranch Park to Loop Connection: The scope of this project consists of the construction of an accessible shared -use pathway that will connect the Continental Ranch Community Park with the Loop shared -use pathway system. As the community's population grows and the extent of the Loop pathway system expands, there is a need to provide new access facilities to maintain the same level of service for Marana residents. This project will contribute to addressing that need. New Competition Swimming Pool: The scope of this project involves the construction of a new competition swimming pools that will allow the Town to continue to provide swimming pool access to the growing number of Marana residents. Improvements will include the pool and the associated mechanical and water filtration / purifications equipment, only. Ora Mae Harn Park Facility Expansion: The scope of this project will involve the construction of a new racquet sport area with lighted pickleball and tennis courts. It will also include the construction of a new lighted multi -sport field and the expansion of the park's pathway system. The project will enable the Town to address increased demand for these facilities due to population growth and continue to provide the same level of service. Saguaro Bloom Park Phase 1: The new Saguaro Bloom Park (Phase 1) will include sport courts, playgrounds, picnic facilities, restrooms, and related site improvements and is being developed in response to population growth. It will allow the Parks and Recreation Department to provide these basic recreational resources to new residents, consistent with the resources it provides current residents. Saguaro Bloom Park Phase 2: Phase 2 of the Saguaro Bloom Park will include two lighted diamond (baseball / softball) fields, a lighted multi -sport / soccer field, an expanded dog park, and related facilities. As with Phase 1 of this project, it will allow the Parks and Recreation Department to provide these basic recreational resources to new residents, consistent with the resources it provides current residents. Town of Marana Impact Fee Study Update and Parks Infrastructure Improvement Plan September 20, 2022 14-3 14. Necessary Public Services — Capital Improvement Plan Gladden Farms Bike Park: The Gladden Farms Bike Park will include bike trails, a pump track, and similar features that can be used by Town residents. Outdoor recreation trends indicate that more and more individuals, both children and adults, are now choosing to engage in this recreational activity. Some of these activities currently occur within the Tortolita Preserve but as demand grows, it will be important to expand the areas available to the public so that the same level of service can be maintained. Twin Peaks District Park Land Acquisition and Phase 1 Development: The Twin Peaks District Park will be a new park as identified in the Town's Parks and Recreation 2020-2030 Master Plan. The park will be centrally located and will serve existing and new residents from throughout the Marana community. Proposed (Phase 1) facilities will include lighted fields, courts, playgrounds, picnic facilities, a dog park, and the supporting infrastructure. The park will be a component of the park system's expansion as needed to maintain a consistent level of service. Mandarina Community Park: Mandarina Community Park will be a new park and will similarly expand the recreational facilities available to residents while maintaining the same level of service for existing and new residents. Improvements planned for the park include lighted multi -sport / soccer fields, sport courts, ramadas, picnic facilities, and the infrastructure needed to support these improvements. Town of Marana Impact Fee Study Update and Parks Infrastructure Improvement Plan September 20, 2022 14-4 15. Summary of Projected Revenues, Planned Costs, and Impact Fees Summary of Projected Revenues and Planned Costs: Provided below is a summary of projected revenues, projected costs, and Impact fees for various types of new development. Figure 20: Summary of Projected Revenues and Planned Costs Projected Revenues — Residential Development Impact Fees (1) $33,383,527.00 Projected Revenues — Non -Residential Development Impact Fees (2) $1,282,896.00 Total $34,666,423.00 Mb Planned Costs (3) $34,666,423.00 Revenues as Percent of Planned Costs 100% (1) See Figure 11— Section 9 (2) See Figure 17 — Section 12 (3) See Figure 19 — Section 14 Figure 21 - Summary of Park Impact Fees: Residential Single Family Residence (1 EDU) $2,529.63 Per Dwelling Unit Multi -Family Residential Unit (.67 EDU) $1,694.85 Per Dwelling Unit Non -Residential Retail $224.00 Per 1,000 S.F. High Traffic Retail $870.00 Per 1,000 S.F Office $285.00 Per 1,000 S.F. Hotel $9.00 Per 1,000 S.F. Industrial $288.00 Per 1,000 S.F. Medical $288.00 Per 1,000 S.F. Town of Marana Impact Fee Study Update and Parks Infrastructure Improvement Plan September 20, 2022 15-1 Town of Marana Impact Fee Study Wastewater Facilities Infrastructure Improvements Plan Public Report FINAL As approved by the Marana Town Council, September 20, 2022 Prepared by Prepared for MARANA AZ CELEBRATING 40 YEARS 1 South Church Avenue, Suite 1400 11555 West Civic Center Drive Tucson, AZ 85701 Marana, AZ 85653 4249� �? September 20, 2022n' W- MORTON 9��2o A 11 5� Town of Marana Mayor and Council Ed Honea — Mayor Jon Post — Vice Mayor Patti Comerford — Councilmember Herb Kai — Councilmember Roxanne Ziegler — Councilmember John Officer — Councilmember Jackie Craig — Councilmember Key Staff Terry Rozema, Town Manager Jing Luo, P.E., Water Director Jane Fairall, Town Attorney Project Consultants HDR 1 South Church Avenue, Suite 1400 Tucson, AZ 85701 520-584-3600 Prime Consultant — All Tasks Wastewater Facilities Infrastructure Improvements Plan September 2022 Sewer Infrastructure Improvement Plan (IIP) - March 2022 Revision ��� Town of Marana Contents 1 Introduction................................................................................. 2 Existing Sewer Collection and Treatment Facilities ................... 3 Designated Management Area and Active Sewer Service Area 4 Level of Service.......................................................................... 5 Projected 10-Year Land Use ...................................................... 6 Existing System Capacity........................................................... 6.1 Unit Wastewater Flow Rates ............................................ 6.2 Existing Treatment System - Required Capacity ............ 6.3 Existing Sewer Collection System - Required Capacity... 7 Projected Capacity Requirements .............................................. 7.1 Treatment Capacity Requirements .................................. 7.2 Sewer Collection System Capacity Requirements........... 8 Capital Improvements................................................................ 8.1 2023 - 2027 (5 Year) Infrastructure Improvements ......... 8.2 2028 - 2032 (10 Year) Infrastructure Improvements ....... Table 5-1. Future Developments and Estimated DU's.................................................................... Table 6-1. Marana WRF - Existing Wastewater Flows and Available Capacity ............................. Table 7-1. Marana WRF - Future Estimated DU's and Influent Wastewater Flows ........................ Table 7-2. Marana WRF - Treatment Capacity Summary.............................................................. Table 8-1. 2023 - 2027 (5 Year) Capital Improvement Summary, with Parallel 15-inch and 21- inch Lines on Sanders Rd (Improvement 5)....................................................................... Table 8-2. 2023 - 2027 (5 Year) Capital Improvement Summary, with Consolidated 27-inch Line on Sanders Road (Improvement 5)..................................................................................... Table 8-3. 2028 - 2032 (10 Year) Capital Improvement Summary ................................................. Figures Figure 3-1. Town and Marana Water's DMA Limits ...................... Figure 3-2. Active Sewer Service Area ......................................... Figure 5-1. Development Activity .................................................. Figure 7-1. Phased Expansion of the Existing WRF...................... Figure 8-1. 2023 - 2027 (5 Year) Capital Improvement Projects. Figure 8-2. 2028 - 2032 (10 Year) Capital Improvement Projects .1 .1 .2 .4 .4 .7 .7 .8 .8 .9 .9 11 12 12 17 .5 .8 10 11 15 15 18 .2 .3 .6 11 16 18 September 20, 2022 1 ii Sewer Infrastructure Improvement Plan (IIP) — March 2022 Revision Town of Marana Appendices Appendix A: Sewer Capacity Tables Appendix B: Sewer Pipe Capacity Figures Appendix C: CIP Cost Tables H! I September 20, 2022 Sewer Infrastructure Improvement Plan (IIP) — March 2022 Revision ��� Town of Marana 1 Introduction As of July 2021, the Town of Marana Water Department (Marana Water) owns and operates a sewer collection system that currently serves approximately 5,200 sewer connections and conveys approximately 695,000 gallons per day (gpd) of sewage to the Marana Water Reclamation Facility (WRF). The Town of Marana (Town) is expected to grow rapidly in the upcoming years with an anticipated additional 10,362 new sewer connections in the next 10 years. Arizona Revised Statutes (ARS) §9-463.05 require that Development Impact Fees be based on adopted land use assumptions and an adopted Infrastructure Improvements Plan (IIP). To support the Town in meeting these requirements, Marana Water contracted with HDR to update the Town's IIP which details the Town's existing sewer collection and treatment infrastructure, available capacity, units of demand, and planning for new infrastructure required to serve future proposed development. The purpose of this I I P update is to summarize the capital improvements required for the Town to meet the demands associated with the next 10 years of growth and to provide the estimated costs of the improvements. 2 Existing Sewer Collection and Treatment Facilities The Marana collection system has approximately 84.3 miles of gravity mains ranging in size from 8-inch to 24-inch diameter. In addition to gravity pipe, the collection system also has approximately 1,729 manholes and 1.7 miles of 8-inch diameter force main. Marana Water operates multiple lift stations including the Rillito Vista Lift Station (LS) and the Saguaro Bloom LS. The Rillito Vista LS serves the Rillito Vista development and the Saguaro Bloom LS serves the active service area south of the Santa Cruz River. Marana Water also recently purchased the Adonis Sewer System and has constructed a new lift station and forcemain to provide service for this area. There are 153 active sewer connections in Adonis. The average daily flow is approximately 18,000 gallons per day (gpd). Marana Water operates the Marana Water Reclamation Facility (WRF) which has a current treatment capacity of 1.5 million gallons per day (MGD) and treats the wastewater collected within the Marana sewer system service area. Through expansion the existing Marana WRF can provide a future treatment capacity of up to 4.5 MGD. Marana Water also operates the Airport Sewer System which is a small standalone system consisting of approximately 5,000 linear feet (LF) of collection lines, 12 manholes and a septic tank / leach field disposal system rated for a treatment capacity of 19,000 gpd. There are currently no active connections to the Airport Sewer System. September 20, 2022 1 1 Sewer Infrastructure Improvement Plan (IIP) — March 2022 Revision Town of Marana 3 Designated Management Area and Active Sewer Service Area Marana Water is the Designated Management Agency providing wastewater service for the Designated Management Area (DMA) which mainly consists of the western portion of the Town and areas beyond the Town limits to the west and south. The sewer DMA which is served by the existing Marana WRF includes only a portion of the Town's population. Many residential and commercial developments within the Town are located outside the DMA. Within Marana Water's DMA, the current active sewer service area is generally located along the 1-10 corridor north of the Santa Cruz River except for the Saguaro Bloom area which is located south of the Santa Cruz River. The eastern portion of the Town is outside the Marana DMA and is served by Pima County Regional Wastewater Reclamation Department (PCRWRD) facilities. The Town and Marana Water's DMA limits are shown in Figure 3-1. Figure 3-2 shows the current active sewer service area. Figure 3-1. Town and Marana Water's DMA Limits 2 1 September 20, 2022 Sewer Infrastructure Improvement Plan (IIP) — March 2022 Revision ��� Town of Marana Figure 3-2. Active Sewer Service Area —==W 'A, 1, EXISTING MARANA WRF I t 4jR/Vel MARANA TOWN LIMITS I EXISTING MARANA WRF SERVICE AREA MARANA SEWER DMA ADONIS LIFT -� STATION ■ I RILLITO VISTA LIFT STATION SAGUARO BLOOM LIFT STATION �. MARANA COLLECTION SYSTEM MASTER PLAN September 20, 2022 1 3 Sewer Infrastructure Improvement Plan (IIP) — March 2022 Revision Town of Marana 4 Level of Service The Town provides sewer collection and treatment for customers within the active sewer service area. The level of service can be defined by the design criteria established by the Town for these systems. The sewer mains in the collection system are designed to convey the peak wet -weather flow (PWWF). Sewer mains are considered to have adequate capacity if they're able to convey the PWWF with the pipes flowing at depth to diameter (d/D) ratio of 75% or less and without any surcharging. The Marana WRF is designed to treat the average dry -weather flow (ADWF) for the system and the facility is designed to produce Class A+ reclaimed water as defined by the Arizona Department of Environmental Quality (ADEQ). The treated effluent can be reused, recharged, or discharged to a tributary of the Santa Cruz River. The level of service provided is the same for both existing and future customers within the active sewer service area. 5 Projected 10-Year Land Use HDR completed the Sewer Conveyance Master Plan in June 2020 based on future development projections available at that time. Following the completion of the Sewer Conveyance Master Plan the Town has continued to update the projections for the future growth areas, so a revised summary of the commercial and residential developments within the DMA for the 10-year planning horizon associated with this IIP update was provided. The future growth areas for the Town are shown in Figure 5-1, and the estimated additional DUs to be added to the active sewer service area through Year 2032 are summarized in Table 5-1. 4 1 September 20, 2022 Sewer Infrastructure Improvement Plan (IIP) - March 2022 Revision ��� Town of Marana Table 5-1. Future Developments and Estimated DU's Mandarina 2,544 - - 2,544 532 810 1,202 Mandarina South 830 - - 830 40 150 640 Stonegate 3,138 - - 3,138 300 700 2,138 Villages of Tortolita 6,500 - - 6,500 - 300 6,200 Subtotal East of 1-10 13,012 0 0 13,012 872 1,960 10,180 Crossroads at 672 - - 672 160 328 184 Gladden Cypress Gardens 217 - - 217 100 117 - Gladden Farms 11 2,539 599 351 1,589 1,421 - 168 Gladden Farms 88 88 88 Commercial Heritage Park 72 - - 72 16 20 36 Shoppes Marana & 1-10 148 - - 148 12 100 36 Marana Main Street 80 - - 80 16 24 40 Marana Towne Center 4,048 - - 4,048 40 80 3,928 Payson Farms 457 - - 457 457 - - Rancho Marana - 536 307 59 170 150 4 16 West Rancho Marana Town 164 - - 164 - 20 144 Center Saguaro Bloom 2,509 1,245 564 700 700 - - Sanders Grove 2,500 - - 2,500 100 600 1,800 Tangerine Commerce 188 - - 188 60 60 68 Park Uptown at Marana 930 - - 930 - 300 630 Vanderbilt Farms 1,945 224 - 1,721 500 1,000 221 Villages of Barnett 251 - 81 170 50 - 120 Subtotal West of 1-10 17,344 2,375 1,055 13,914 3,782 2,653 7,479 Airport 200 - - 200 20 20 160 Subtotal Airport 200 0 0 200 20 20 160 Total 30,556 2,375 1,055 27,126 4,674 4,633 17,819 a Buildout is only within the service areas of the existing WRF and proposed WRF east of 1-10 b Includes commercial developments with assumed density of 4 DUs per acre. September 20, 2022 1 5 Sewer Infrastructure Improvement Plan (IIP) — March 2022 Revision Town of Marana Figure 5-1. Development Activity Q Nliles 5 h-T EXISTING _ MARANA WRF 0 U H 0-A �1' W Avra Valley Rd Legend Development Boundary Designated Management Area LACES OF �•RTOLRA rind f tMA TH�� MARANA OF E VILLAGES �.:TORTOLIrA SEWER DMA M � _ MRANA S fie 1¢A1/1.114010M J SANpCRS COMMERCIAL �? CRCYE �. Z W Marana Rd _ — MARANA lY _ MARANA TONNE p , RANC40 MARA" LA MRAOE �' TMR '�. 1 IdNN CawttN • yV GnPr Rd—C_ rsTAles 101 1 d- SW Bamett R':x 41j4 CPAYTSCW4 FARM MID GATE r rmms Z FINE 1 W Moore Rd v2RiV :'rur �► -- - jA •T t- ar-J.i-- 3UDCEN � 1 � NE13WS ■ ' � �AaM511 MANQARItiA SCMTN �._ W Tange N 1.. IAQ- GR'05:A0AD9 TANGERINE ri 'A R.A SHCPFE9 ATC:AADCFN rowt "Cr PARK RiIiI 1 Cn MARANA TOWN LIMITS AIRAORT W Avra Valley Rd II TA IN � � J LxivE W11 INTA N 36 1 tl'l+,ANA T ECHNaMPUS MERCIALIGERNEA BLOCKS 1AQ i c rUERTE 01- � 70 SA:iUARI) BLOOM - •, � OLOGKt1� � T Z rA9M5 N0RTN ICGMMERCAALI I WY K BAR CCR RANCH LOTS (� Roc FirnlIIIIIIIIe►.Fva� 6 1 September 20, 2022 Sewer Infrastructure Improvement Plan (IIP) — March 2022 Revision ��� Town of Marana 6 Existing System Capacity This section provides an analysis of the existing system capacity as well as the current level of usage and commitments for usage of capacity for the existing wastewater collection and treatment systems. 6.1 Unit Wastewater Flow Rates The initial step in evaluating the system capacity is establishing the estimated unit wastewater generation rate for the existing sewer collection and treatment system and an equivalency establishing the ratio of a service unit to the various types of land uses (i.e., residential, commercial and industrial, etc.) within the service area. As part of the Sewer Conveyance Master Plan, HDR developed unit wastewater flow rates for each customer type based on a review of manhole flow monitoring data as well as applicable design and construction criteria contained in the Pima County Regional Wastewater Reclamation Department Engineering Design Standards and the Arizona Administrative Code (AAC). The following provides a summary of the recommended parameters from the Sewer Conveyance Master Plan. Gravity Conveyance System: ■ Residential unit flow = 216 gpd/DU' ■ Commercial unit flow rate = 1,466 gpd per connection ■ PWWF = 499.5 gpd/DU2 Forcemains and Lift Stations: Lift stations should be capable of operating at minimum flows and maximum flows: o PWWF = 499.5 gpd/DU Treatment Capacity: ■ Average Dry Weather Flow (ADWF)** at 127.6 gal/DU. However, based on the last six months (September 2021 — February 2022) of influent data to the Marana ' From Pima County Engineering Design Standards, i.e., 2.7 residents per DU x 80 gallons per capita per day 2 Per AAC R1 8-9-E301 (D)(b)(i) for estimated population of 9,500 in sewer collection area, the Peak Dry Weather Peaking Factor is 1.85. This is multiplied against the PWWF peaking factor of 1.25, for a combined peaking factor of 2.31. Note that PWWF peaking factors are not specified in the AAC, Pima County Engineering Design Standards, or in ADEQ Bulletin 11. Recent developer estimates have used a PWWF peaking factor of 25% above PDWF. For the purposes of this IIP, 25% above PDWF was assumed. September 20, 2022 1 7 Sewer Infrastructure Improvement Plan (IIP) — March 2022 Revision Town of Marana WRF and most recent count of residential customer connections this, the ADWF for future forecasting has been revised to 139.6 gal/DU3. ** Note that per ADEQ Bulletin 11 — Minimum Requirements for Design, Submission of Plans and Specifications for Sewage Works and AAC R18-9-B202(A)(9)(a), the design of treatment works should be based on the annual average rate which is based on actual flow rates. 6.2 Existing Treatment System — Required Capacity A summary of the existing influents flows and available treatment capacity for the Marana WRF is provided in Table 6-1. Influent flows to the Marana WRF have steadily been increasing over the last year, increasing from approximately 550,000 gallons per day (gpd) to over 695,000 gpd as experienced in May 2021 which used as the baseline flow for this report noting that the Town's future development projections are based on a July 2021 starting point. In anticipation of future growth, the existing Marana WRF recently underwent an expansion from 0.5 MGD to 1.5 MGD. With further expansion the build -out capacity of the Marana WRF is 4.5 MGD. Based on the existing flows and available treatment capacity, the treatment system has approximately 805,000 gpd of excess capacity to support additional future growth. Table 6-1. Marana WRF — Existing Wastewater Flows and Available Capacity East of 1-10 119,561a West of 1-10 575,439b . Total Existing Wastewater Flow (gpd) 695,000c Marana WRF Treatment Capacity (gpd) 1,500,000 Excess Treatment Capacity Available (gpd) 805,000 a Estimated based on 784 DUs in San Lucas and 153 DUs in Adonis at ADWF of 127.6 gal/DU b Estimated as difference between Marana WRF flows minus flows from east of 1-10 Based on average influent flows to the Marana WRF in May 2021, as reported by the Town 6.3 Existing Sewer Collection System - Required Capacity The sewer collection system tributary to the Marana WRF is served by 12 main sewer interceptors that have been labeled A through L. Each interceptor is divided into segments that consist of one or more pipes. For the purposes of evaluating the existing sewer collection system capacity as required for the IIP, the interceptors were broken up into segments based on where wastewater loads are allocated to the system. The sewer capacity tables are provided in Appendix A. Table A-1 shows the calculated PWWF, the resulting depth to diameter (d/D) ratio for the PWWF, the existing pipe 3 ADWF estimated based on highest average monthly flow (792,000 gal/day in January 2022) and residential customer count of 5,672. 8 1 September 20, 2022 Sewer Infrastructure Improvement Plan (IIP) — March 2022 Revision ��� Town of Marana capacity, and the excess pipe capacity available for each interceptor segment. The existing capacity is based on the pipe flowing at 100% full. Excess capacity was determined as the difference between the existing PWWF and existing capacity of the pipe. As shown in the table, all pipes have sufficient capacity to convey the existing wastewater flows and have significant excess capacity available for future growth. However, there are multiple segments in Branches D, J, and K which are at or above 50% capacity and are expected to exceed a d/D ratio above 75% in the coming five years. For the purposes of this analysis, HDR identified pipes with d/D ratios of above 0.70 as potentially requiring capacity improvements. See Appendix B, Figure B-1 for the existing sewer capacity. 7 Projected Capacity Requirements This section provides a summary of the number of projected service units and the projected wastewater loads necessitated by and attributable to new development in the active sewer service area for the period encompassing the next ten years (i.e., 2023 to 2032). The projected capacity requirements for the 10-year projected growth are also compared with the utilization and available capacity of the existing treatment and sewer collection system infrastructure. 7.1 Treatment Capacity Requirements Table 7-1 provides a summary of the projected flows from future growth for the period between 2023 to 2027 (5 Year) and 2028 to 2032 (10 Year). The Airport Sewer System has a standalone treatment system and will not be conveyed to the Marana WRF. Table 7-2 provides a summary of the existing wastewater flows, additional flows associated with future growth and a comparison with available treatment capacity at the Marana WRF. As shown in Table 7-2, the Marana WRF is projected to receive an additional ADWF of 796,977 gpd by the end of 2027 and 1,440,952 gpd by the end of 2032. The total expected ADWF at the Marana WRF in November 2027 will be 1.49 MGD as compared to the available capacity of 1.5 MGD, which represents approximately 99% of total capacity. • The total expected ADWRF at the Marana WRF in November 2032 will be 2.14 MGD as compared to the available capacity of 1.5 MGD, which represents approximately 143% of capacity. In anticipation of future growth, the existing Marana WRF recently underwent an expansion from 0.5 MGD to 1.5 MGD and with further expansion the build -out capacity of the Marana WRF is 4.5 MGD. The additional flows through Year 2027 take the Marana WRF approximately to its rated capacity, and additional flows through Year 2032 are beyond the Marana WRF current capacity. Design of the expansion of the Marana WRF should begin when ADWF exceeds 75% of capacity, which is expected to occur by early- 2025. The expansion phasing for the existing WRF is shown in Figure 7-1, with flows September 20, 2022 1 9 Sewer Infrastructure Improvement Plan (IIP) - March 2022 Revision Town of Marana after 2032 based on projections summarized in Table 6-1 and construction of a new WRF east of 1-10 as identified in the 2020 Sewer Master Plano. Table 7-1. Marana WRF - Future Estimated DU's and Influent Wastewater Flows Mandarina - 1,342 532 74,267 810 113,076 Mandarina South - - 190 40 5,584 150 20,940 Stonegate - 1,000 300 41,880 700 97,720 Villages of Tortolita - - 300 - - 300 41,880 Subtotal East of 1-10 0 0 2,832 872 121,731 1,960 273,616 Crossroads at Gladden - - 488 160 22,336 328 45,789 Cypress Gardens - - 217 100 13,960 117 16,333 Gladden Farms II 599 351 1,421 1,421 198,372 - - Gladden Farms Commercial Heritage Park Shoppes 36 16 2,234 20 2,792 Marana & 1-10 112 12 1,675 100 13,960 Marana Main Street 40 16 2,234 24 3,350 Marana Towne Center 120 40 5,584 80 11,168 Payson Farms - - 457 457 63,797 - - Rancho Marana - West 307 59 154 150 20,940 4 558 Rancho Marana Town - - 20 - - 20 2,792 Center Saguaro Bloom 1,245 564 700 700 97,720 - - Sanders Grove - - 700 100 13,960 600 83,760 Tangerine Commerce Park 120 60 8,376 60 8,376 Uptown at Marana - 300 - - 300 41,880 Vanderbilt Farms 224 - 1,500 500 69,800 1,000 139,600 Villages of Barnett - 81 50 50 6,980 - - Subtotal West of 1-10 2,375 1,055 6,435 3,782 527,967 2,653 370,359 Total 2,375 1,055 9,267 4,654 649,698 4,613 643,975 Airport Sewer Systema - - 40 20 2,792 20 2,792 Subtotal Airport Sewer 0 0 40 20 2,792 20 2,792 System a The Airport Sewer System has a standalone treatment system and will not be conveyed to the Marana WRF. b Future ADWF projections based on 139.6 gal/DU 4 The 2020 Master Plan recommends flows from Villages of Tortolita, Adonis, and San Lucas be diverted to a new WRF located east of 1-10 by 2035, and that by 2050 flows from all developments east of 1-10 be diverted to the new WRF. High and low projections reflect a range of future residential housing density between 0.5 to 2 DUs per acre within 3,600 acres located west of 1-10. 10 1 September 20, 2022 Sewer Infrastructure Improvement Plan (IIP) — March 2022 Revision L-0103 Town of Marana TableCapacity Existing & Additional ADWF (gpd)b Projected Total Wastewater Wastewater Flow East of West of Flow Period (gpd) 1-10 1(gpd) Jul 2021 — Nov 2022 695,000 0 147,278a 842,278 1,500,000 657,722 2023-2027 (5 Year) 842,278 121,731 527,967 1,491,976 1,500,000 8,024 2028-2032 (10 Year) 1,491,976 273,616 370,359 2,135,951 1,500,000 (635,951) a Includes Gladden Farms II — 351 DUs, Rancho Marana West — 59 DUs, Saguaro Bloom — 564 DUs, Villages of Barnett — 81 DUs for a total of 1,055 DUs as shown in Table 7-1. When multiplied by ADWF projection of 139.6 gal/DU, the total projected flow for these developments is 139,042 gpd. b ADWF projections based on 139.6 gal/DU Figure 7-1. Phased Expansion of the Existing WRF 5,000,000 4,500,000 4,000,000 Flow Projection High 3,500,000 Required Treatment Capacity 3,000,000 v a 00 3 2,500,000 o "\ LL 2,000,000 Flow Projection - Low 1,500,000 1,000,000 500,000 0 2015 2020 2025 2030 2035 2040 2045 2050 2055 Year 7.2 Sewer Collection System Capacity Requirements Pipe capacity tables for future scenarios are shown in Appendix A and shows the capacity of the existing sewer collection system to accommodate the growth from 2023 to 2027 if no improvements were made. Appendix A shows the projected flow (i.e., PWWF), the resulting d/D ratio for the PWWF, the existing pipe capacity, and the excess pipe capacity available for each interceptor segment for the 2023 to 2027 and 2028 to 2032 planning periods, respectively. For the 2023 — 2027 planning period, Appendix A shows that the pipe capacity is 1.00 for portions of Branches I, J, and K, indicating surcharged conditions if no improvements September 20, 2022 1 11 Sewer Infrastructure Improvement Plan (IIP) — March 2022 Revision Town of Marana were made. There are a three pipe segments in Branch D that are above 0.70 but are not exacerbated by future growth. Based on these results, 2023 - 2027 improvements were identified (see Section 8.1) to alleviate the surcharging in the identified pipe segments. For the 2023 to 2027 planning period, the proposed gravity sewer improvements result in no pipes experiencing a d/D ratio above 0.70, other than the segments in Branch D which are slightly above 0.70. For the 2028 to 2032 planning period, Appendix A shows the pipe capacity is 1.00 for portions of Branches B and G, indicating surcharged conditions. There are some pipe segments in Branch B with d/D values between 0.70 and 0.75 but are not exacerbated by future growth and were not susceptible to surcharging, so no future improvements were identified. Based on these results, improvements were identified (see Section 8.2) to alleviate the surcharging in the identified pipe segments. For the 2028 to 2032 planning period, the proposed gravity sewer improvements result in a reduction of d/D ratio from 1.00 to approximately 0.70 — 0.77, with no surcharging occurring anywhere in the system. Figures showing the location of the pipes with insufficient capacity are included in Appendix B. 8 Capital Improvements The Town of Marana is expected to develop rapidly over the next 10-15 years, requiring significant investment in infrastructure. HDR has identified several sewer infrastructure capital improvements that will provide Marana Water sufficient conveyance and treatment capacity to accommodate the Town's anticipated growth through the Year 2030 and beyond. The capital improvements required to support the Town's anticipated future growth are described in the following sections. 8.1 2023 — 2027 (5 Year) Infrastructure Improvements Based on the results of model analysis completed for the Sewer Conveyance Master Plan it was determined the existing sewer collection system has available capacity to convey current peak wet weather flows while maintaining pipes at less than 75% capacity and without surcharging. However, new developments are anticipated east of I- 10 in the 10 Year planning period and there is currently no infrastructure in place to support sewer service to these areas. The infrastructure improvements required for the 2023 to 2027 (5 Year) planning phase include gravity lines, lift stations, and force mains that are associated with new infrastructure needed to support sewer service to these new developments and infrastructure needed to increase the capacity of the existing gravity network west of 1-10. The existing WRF has insufficient capacity to accommodate the projected growth for the (5 Year) planning phase and will require expansion. Adonis There are currently 153 DUs in Adonis, with sewer flows collected at two sewage lagoons located northwest of the development. Marana Water has constructed a new lift station and forcemain to direct flows from Adonis to the San Lucas gravity system. With the addition of the Adonis flows to the gravity system, there is sufficient capacity 12 1 September 20, 2022 Sewer Infrastructure Improvement Plan (IIP) — March 2022 Revision ��� Town of Marana available in the gravity main that connects San Lucas to the collection system west of I- 10 to accommodate an additional 600 DUs before it surcharges. Since the lift station and force main have already been constructed, the capital costs associated with Adonis are not included as part of the CIP. Stonegate, Mandarina, and Mandarina South (Improvement 1) — Complete The new lift station and forcemain serving Adonis was not sized to receive flows from Stonegate, Mandarina, and Mandarina South. Improvements will be required to support any future growth associated with Mandarina and other southeast developments. A new 15-inch gravity line was constructed by Mandarina LLC to convey flows across I- 10 and connect to the Town's existing gravity network west of 1-10. The new 15-inch pipe was installed along West Moore Road and connects to the existing 18-inch north -south gravity sewer line at the intersection of West Moore Road and North Clark Farms Boulevard that connects to the existing gravity line from Saguaro Bloom. It is anticipated the new 15-inch gravity line was sized for ultimate buildout in conjunction with other improvements and will have capacity to serve up to 1,000 DUs associated with Mandarina and other southeast developments. The existing gravity network west of 1-10 has sufficient capacity to accommodate up to 250 DUs from these southeast developments, in addition to the anticipated growth on the west side of 1-10, before additional gravity conveyance capacity to the existing WRF is required. Reducing Flows Along Sandario Road (Improvements 2 and 3) Improvements 2 and 3 are associated with increasing the capacity of the existing gravity network west of 1-10. These improvements will also reduce flows flowing north on Sandario Road and provide flow relief to Branch F (see Figure A-2) which would exceed its maximum design capacity without these improvements. Approximately 4,600 linear feet of 21-inch gravity lines will be required to augment the existing gravity network. A new 21-inch line will tie into the stubbed out gravity line at Tangerine Farms Road at Clark Farms Road and will continue north to Barnett Road (Improvement 2). The 21-inch line will continue west on Barnett Road to Sanders Road and tie into the existing sewer line on Sanders Road (Improvement 3). Gravity System Improvements Along Sanders Road and Marana Road (Improvements 4 — 7) The model results in Table A-1 show that without improvements, future sewer flows along Sanders Road and Marana Road will cause the existing sewer interceptors to surcharge. Approximately 19,300 linear feet of new gravity lines will be required to augment the existing gravity network. The Town requested HDR evaluate two options for augmenting the sewer line along Sanders Road: Option 1: Install a parallel 21-inch sewer line from Barnett Road to Marana Road to augment the existing 15-inch sewer line. September 20, 2022 1 13 Sewer Infrastructure Improvement Plan (IIP) — March 2022 Revision Town of Marana Option 2: Replace the existing 15-inch sewer line from Barnett Road to Marana Road with a new 27-inch sewer line. This option would be beneficial to the Town in not having to maintain two parallel lines, and also because it would eliminate the need for the Town to rehabilitate the existing manholes on the 15-inch line which the Town projects will cost $731,282. HDR evaluated the 21-inch and 27-inch options on Sanders Road, which are presented in Tables 8-1 and 8-2, respectively. As shown on Table 8-2, the 27-inch consolidated line will be lower in cost with the added benefit of fewer manholes and less pipe for the Town to maintain. HDR recommends this as the preferred option. For augmenting the existing sewer capacity along Marana Road west of Sanders Road, the 2020 Sewer Conveyance Master Plan proposed a 27-inch new gravity line run north to Sagebrush Road, and then turn west, tying into the 24-inch existing gravity line at Luckett Road. The new 27-inch gravity lines on Sanders Road and Sagebrush Road (Improvements 4, 5, 6 and 7) are expected to be required by 2024. As indicated by the results of the existing capacity evaluation (see Table A-1), Branches K and L will surcharge by the end of the 2023 — 2027 (5 Year) planning phase without improvements being made. The improvements are shown on Figure 8-1. Marana WRF Expansion (Improvement 8) If all projected development within the 10 year planning period occurs, the influent to the existing Marana WRF is anticipated to reach 99% of the current capacity of 1.5 MGD by November 2027. As such it's recommended the WRF expansion to 3.0 MGD be completed before then. The Town's approach is to begin designing and constructing a new phase of expansion for its treatment facilities when the influent flow reaches 75% of the capacity of the facility. Per the current flow projections, by early 2025 the influent flow to the WRF will reach 1.125 MGD which is 75.0% of the WRF capacity, the regulatory point for beginning design. Construction of the WRF expansion should begin prior to reaching 90% of capacity, which is expected to occur by late 2026. The influent flows are expected to reach 1.5 MGD by late 2027 and, assuming two years for construction, construction of the WRF expansion would need to start in late 2025. HDR estimates a 12 — 18 month design period prior to construction and recommends starting design in mid-2024. A summary of the required sewer system improvements with estimated construction costs are provided in Table 8-1. The improvements are shown on Figure 8-1 and are designated with an Improvement ID number. 14 1 September 20, 2022 Sewer Infrastructure Improvement Plan (IIP) — March 2022 Revision ��� Town of Marana Table 8-1. 2023 — 2027 (5 Year) Capital Improvement Summary, with Parallel 15-inch and 21-inch Lines on Sanders Rd (Improvement 5) 1 Gravity Pipe 15-inch x 3,334 LF $0b Gravity Pipe 21-inch x 800 LF $325,297° 3 Gravity Pipe 21-inch x 3,600 LF $2,463,177 Gravity Pipe 21-inch' x 5,300 LF $3,613,417d 5 Gravity Pipe 27-inch x 2,800 LF $1,696,982 6 Gravity Pipe 27-inch x 5,300 LF $3,034,513 7 Gravity Pipe 27-inch x 5,900 LF $3,371,261 8 Existing WRF Design 1.5 MGD $39,161,113 and Construction TOTAL $53,665,760 a These are total estimated project costs including direct construction costs, contingency, contractor fees, design fees, and other direct costs. Fully loaded costs for each improvement project are provided in Appendix C. b See construction drawings for Town of Marana Public Sewer Improvement Plan Mandarina Offsite Sewer S- 2020-007 / ENG2002-003. Project will be funded by developer, so costs are not included in the CIP. Construction cost of $309,807 provided by Meritage Homes, escalated by 5% per the Town's request. d Cost of the 21-inch line does not include the $731,282 maintenance cost associated with rehabilitating the existing 15-inch line. e Flows along Sanders Road will be conveyed by a new 21-inch pipeline and parallel existing 15-inch pipeline. Table 8-2. 2023 — 2027 (5 Year) Capital Improvement Summary, with Consolidated 27-inch Line on Sanders Road (Improvement 5) 1 Gravity Pipe 15-inch x 3,334 LF $0 2 Gravity Pipe 21-inch x 800 LF $325,297b 3 Gravity Pipe 24-inch x 3,600 LF $2,745,062 4 Gravity Pipe 27-inch x 5,300 LF $3,066,315c 5 Gravity Pipe 27-inch x 2,800 LF $1,696,982 6 Gravity Pipe 27-inch x 5,300 LF $3,034,513 7 Gravity Pipe 27-inch x 5,900 LF $3,371,261 8 Existing WRF Design 1.5 MGD $39,161,113 and Construction TOTAL $53,075,246 a These are total estimated project costs including direct construction costs, contingency, contractor fees, design fees, and other direct costs. Fully loaded costs for each improvement project are provided in Appendix C. b Construction cost of $309,807 provided by Meritage Homes, escalated by 5% per the Town's request. The total cost of constructing Improvement 4 is $4,443,935. The proportional flow from the existing 15-inch line that would be replaced by Improvement 4 represents approximately 31 % of the total flow capacity. Therefore, on a capacity basis $3,066,315 would be assigned to the 27-inch line and $1,377,620 to the existing 15-inch line. September 20, 2022 1 15 Sewer Infrastructure Improvement Plan (IIP) — March 2022 Revision Town of Marana Figure 8-1. 2023 — 2027 (5 Year) Capital Improvement Projects W Hardin Rd 0 Legend Existing Sewer Mains 2022 - 2027 (5 Year) Improvements Sewer Improvements not Included in II ♦ Improvement Limits MARANA SEWER DMA m Y U W Kirby Hughes Rd Z —f7 W S'agebrush Rd A $ W Marana Rd N ~, m �r 3 i r, MARANA 8 TOWN LIMITS 3 C, e� � N S,jye c FOR �n a Z Of 16 1 September 20, 2022 Sewer Infrastructure Improvement Plan (IIP) — March 2022 Revision ��� Town of Marana 8.2 2028 — 2032 (10 Year) Infrastructure Improvements The infrastructure improvements required for the 2023 to 2027 (5 Year) planning phase include gravity lines, lift stations, and force mains that are associated with new infrastructure needed to support sewer service to these new developments and infrastructure needed to increase the capacity of the existing gravity network west of 1-10. Based on the results of model analysis, new developments located southeast of 1-10 (Stonegate, Mandarina, Mandarina South) will result in flows that are in excess of the available capacity, specifically along the 15-inch and 18-inch sewer main that serve Saguaro Bloom. Furthermore, new developments located northeast of 1-10 (Villages of Tortolita) will need to be conveyed to the existing sewer lines serving the Adonis and San Lucas development. The combined additional flows from developments located east of I- 10 will require a new parallel pipe from the terminus of Improvement 7 to the existing WRF. The expanded WRF (Improvement 8) will have sufficient capacity to accommodate the projected growth for 10 Year planning phase. New Parallel Gravity Main to Existing WRF (Improvement 9) The existing 24-inch gravity main feeding the WRF will begin surcharging after developments both east and west of 1-10 exceed 10,000 EDUs. This will require adding a new parallel 27-inch gravity line. New Parallel Gravity Main Along Saguaro Bloom Transmission Line (Improvement 10) Per the 2020 Master Plan, sewer flows from developments southeast of 1-10 (Stonegate, Mandarina, Mandarina South) were to be conveyed to a new WRF located northeast of I- 10 after exceeding 1,000 EDUs. The revised development projections show that the southeast developments will exceed 2,500 EDUs by 2032. The existing 15-inch gravity line (see Improvement 1) has sufficient capacity to convey new development flows through 2032, but these flows will result in surcharging along the 15-inch and 18-inch gravity lines downstream of the 15-inch connection point. This will require adding a new parallel 15-inch gravity line. Villages of Tortolita (Improvement 11) Initial growth is anticipated in the southern portion of the Villages of Tortolita. Sewer flows from the south will flow by gravity through an 18-inch line northwest towards a lift station and will be pumped back via a 6-inch force main to the existing gravity system serving San Lucas. The maximum size of the lift station is limited to serving approximately 600 EDUs from the Villages of Tortolita before surcharging the San Lucas and Adonis service line under 1-10, or approximately 210 gpm pumping capacity. It should be noted the 18-inch gravity line is sized to accommodate ultimate buildout when flows from San Lucas, Adonis, and new developments to the southeast will be directed to the future WRF that will serve all developments on the east side of 1-10. September 20, 2022 1 17 Sewer Infrastructure Improvement Plan (IIP) — March 2022 Revision Town of Marana Table 8-3. 2028 — 2032 (10 Year) Capital Improvement Summary 9 Gravity Pipe 27-inch x 5,300 LF $3,034,513 10 Gravity Pipe 15-inch x 11,500 LF $5,809,844 Gravity Pipe 18-inch x 6,800 LF 11 Lift Station 210 gpm capacity $4,500,690 Force Main 6-inch x 6,800 LF TOTAL $13,345,048 1 These are total estimated project costs including direct construction costs, contingency, contractor fees, design fees, and other direct costs. Fully loaded costs for each improvement project are provided in Appendix C. Figure 8-2. 2028 — 2032 (10 Year) Capital Improvement Projects Q� 0 Miles 1 Rd v W Hardin Rd W Kirby Hughes Rd W Marana Rd s � Z MARANA TOWN LIMITS S gh'd C Date 2022 - 2027 (5 Year) Improvement 2027-2032 (10 Year) Improvement Existing Sewer Mains Sewer Improvements not Included MARANA SEWER DMA in IIP • Improvement Limits �a �° •i� • Goo N 041 `m e � 261 Z 18 1 September 20, 2022 Appendix A: Pipe Capacity Tables September 20, 2022 1 A-1 Appendix A Interceptor Branch Segment Model I Diameter (in) Length (ft) A 1 193 12 186 A 2 194 12 296 A 3 964 12 558 A 4 85 12 285 A 5 84 12 64 A 6 83 12 282 A 7 82 12 88 ANEW 1 5080 18 6,745 B 1 69296 15 49 B 2 90512 12 43 B 3 90513 12 205 B 4 90514 12 205 B 5 90515 12 240 B 6 90516 12 410 B 7 90517 12 410 B 8 90518 12 162 B 9 90519 12 163 B 10 90520 12 305 B 11 90521 12 283 B 12 90522 12 343 B 13 90523 12 63 B 14 90524 1 12 265 B 15 90525 12 84 B 16 90526 12 269 B 17 90527 12 264 B 18 90511 12 286 B 19 69295 15 487 B 20 69294 15 361 B 21 69293 15 173 B 22 69292 1 15 172 B 23 69291 15 400 B 24 69290 15 390 B 25 69289 15 251 B 26 69288 15 500 B 27 69287 15 500 B 28 69286 15 386 B 29 69285 15 391 B 30 69284 1 15 385 B 31 69283 15 95 B 32 69282 15 336 B 33 69281 15 315 B 34 69280 15 496 B 35 69279 15 258 B 36 69278 15 476 B 37 69277 15 475 B 38 69276 1 15 213 B 39 69275 18 304 B 40 69274 18 398 B 41 69273 18 600 B 42 69272 18 597 B 43 69271 18 446 B 44 69270 18 600 B 45 69269 18 409 B 46 69268 1 18 375 B 47 69267 18 291 B 48 69266 18 598 B 49 69265 18 601 B 50 69264 18 498 B 51 69262 18 500 B 52 69261 18 560 B 53 75260 18 600 B 54 75271 1 18 92 B 55 75270 18 279 B 56 75269 18 238 B 57 75268 18 273 B 58 75267 18 599 B 59 75266 18 66 B 60 75265 18 167 B 61 75264 18 346 B 62 75263 1 18 600 B 63 75262 18 600 B 64 75261 18 599 B 65 331 18 600 B 66 333 18 600 B 67 332 18 1 298 Existing System Existing Flow (MGD) d/D Existing Capacity (MGD) Excess Capacity Available (MGD) 0.33 0.29 1.80 1.47 0.33 0.30 1.63 1.30 0.33 0.29 1.74 1.41 0.33 0.32 1.52 1.19 0.33 0.31 1.58 1.25 0.33 0.31 1.58 1.25 0.33 0.30 1.63 1.30 0.40 0.32 1.80 1.40 0.40 0.40 1.16 0.76 0.40 0.41 1.13 0.73 0.40 0.41 1.13 0.73 0.40 0.41 1.13 0.73 0.40 0.41 1.13 0.73 0.40 0.41 1.15 0.75 0.40 0.40 1.19 0.79 0.40 0.40 1.19 0.79 0.40 0.40 1.19 0.79 0.40 0.40 1.19 0.79 0.40 0.40 1.18 0.78 0.40 0.40 1.20 0.80 0.40 1 0.40 1.19 1 0.79 0.40 0.40 1.18 0.78 0.40 0.40 1.19 0.79 0.40 0.40 1.19 0.79 0.40 0.40 1.18 0.78 0.40 0.29 2.16 1.76 0.40 0.26 2.74 2.35 0.40 0.26 2.61 2.21 0.40 1 0.24 3.13 1 2.73 0.40 0.30 2.01 1.61 0.40 0.26 2.72 2.32 0.41 0.27 2.55 2.14 0.41 0.28 2.37 1.96 0.41 0.28 2.37 1.96 0.41 0.28 2.44 2.03 0.41 0.28 2.33 1.92 0.41 1 0.27 2.54 2.14 0.41 0.21 4.16 3.75 0.41 0.27 2.47 2.07 0.41 0.28 2.37 1.97 0.41 0.28 2.37 1.96 0.41 0.31 1.92 1.51 0.41 0.31 2.00 1.60 0.41 0.28 2.37 1.96 0.41 1 0.25 2.90 2.49 0.41 0.26 2.73 2.33 0.41 0.25 2.98 2.57 0.41 0.26 2.72 2.32 0.41 0.25 3.04 1 2.63 0.41 0.26 2.72 2.31 0.41 0.25 2.97 2.56 0.41 0.25 3.05 2.64 0.41 1 0.24 3.26 2.86 0.41 0.23 3.48 3.07 0.41 0.25 2.97 2.57 0.41 0.25 2.89 2.48 0.41 0.26 2.81 1 2.41 0.41 0.25 3.04 2.64 0.41 0.25 3.02 2.61 0.41 0.24 3.12 2.71 0.41 1 0.25 2.93 2.52 0.41 0.25 2.91 2.51 0.41 0.25 2.93 2.52 0.41 0.25 2.91 2.51 0.41 0.25 2.92 1 2.51 0.41 0.25 2.90 2.50 0.41 0.25 2.93 2.52 0.41 0.25 2.93 2.52 0.41 0.25 2.92 2.51 0.41 0.25 2.92 2.51 0.41 0.25 2.92 2.51 0.41 0.25 2.92 2.51 0.46 0.27 2.92 2.46 0.46 0.27 1 2.93 2.47 Town of Marana Sewer Infrastructure Improvement Plan (IIP) Sewer Pipe Capacity Tables 2022 to 2027 (5 Year) without Improvements Projected Flow (MGD) d/D Projected Capacity (MGD) Excess Capacity Available (MGD) 0.41 0.33 1.71 1.30 0.41 0.34 1.63 1.22 0.41 0.33 1.73 1.32 0.41 0.35 1.52 1.11 0.41 0.31 1.94 1.53 0.41 0.35 1.56 1.16 0.41 0.34 1.62 1.22 0.94 0.53 1.72 0.78 0.94 0.68 1.17 0.23 0.94 0.69 1.14 0.20 0.94 0.70 1.12 0.19 0.94 0.69 1.14 0.20 0.94 0.69 1.13 0.19 0.94 0.69 1.15 0.21 0.94 0.67 1.18 0.25 0.98 0.70 1.19 0.20 0.98 0.70 1.19 0.20 0.98 0.69 1.19 0.20 0.98 0.69 1.19 0.21 0.98 0.70 1.18 0.20 0.98 0.70 1.18 1 0.20 0.98 0.70 1.18 0.19 0.98 0.69 1.21 0.22 0.98 0.70 1.18 0.20 0.98 0.70 1.18 0.19 0.98 0.47 2.16 1.17 0.98 0.41 2.73 1.75 0.98 0.43 2.61 1.63 0.98 0.38 3.14 2.16 1.18 0.55 2.00 0.83 1.18 0.46 2.73 1.55 1.18 0.48 2.55 1.37 1.18 0.50 2.36 1.18 1.18 0.50 2.38 1.20 1.18 0.49 2.42 1.24 1.18 0.50 2.33 1.15 1.18 0.48 2.54 1.36 1.18 0.37 4.10 2.91 1.18 0.48 2.49 1.31 1.18 0.50 2.34 1.16 1.18 0.50 2.37 1.19 1.18 0.57 1.92 1 0.74 1.18 0.55 2.01 1 0.83 1.18 0.50 2.36 1.18 1.18 0.44 2.94 1.75 1.18 0.46 2.71 1.53 1.18 0.44 2.99 1.81 1.18 0.46 2.72 1.54 1.18 0.43 3.03 1.85 1.18 0.46 2.71 1.53 1.18 0.44 2.96 1.78 1.18 0.43 3.06 1.88 1.63 0.50 3.28 1.65 1.63 0.48 3.47 1.84 1.63 0.53 2.96 1.33 1.63 0.54 2.90 1.27 2.06 0.64 1 2.80 0.74 2.29 0.65 3.04 1 0.75 2.29 0.65 3.02 0.73 2.29 0.64 3.11 0.82 2.29 0.66 2.95 0.66 2.29 0.67 2.91 0.61 2.29 0.67 2.92 0.63 2.29 1 0.67 2.92 0.63 2.29 0.67 2.92 0.62 2.29 0.68 2.87 0.58 2.29 0.66 2.99 0.69 2.29 0.67 2.92 0.62 2.29 0.67 2.92 0.62 2.29 0.67 2.91 0.62 2.29 0.67 2.92 0.62 2.29 0.68 2.86 0.56 2.33 0.68 2.91 0.58 2.33 1 0.68 2.88 0.55 2022 to 2027 (5 Year) with Improvements Projected Flow (MGD) d/D Projected Capacity (MGD) Excess Capacity Available (MGD) 0.41 0.33 1.71 1.30 0.41 0.34 1.63 1.22 0.41 0.33 1.73 1.32 0.41 0.35 1.52 1.11 0.41 0.31 1.94 1.53 0.41 0.35 1.56 1.16 0.41 0.34 1.62 1.22 0.94 0.53 1.72 0.78 0.94 0.68 1.17 0.23 0.94 0.69 1.14 0.20 0.94 0.70 1.12 0.19 0.94 0.69 1.14 0.20 0.94 0.69 1.13 0.19 0.94 0.69 1.15 0.21 0.94 0.67 1.18 0.25 0.98 0.70 1.19 0.20 0.98 0.70 1.19 0.20 0.98 0.69 1.19 0.20 0.98 0.69 1.19 0.21 0.98 0.70 1.18 0.20 0.98 1 0.70 1.18 1 0.20 0.98 0.70 1.18 0.19 0.98 0.69 1.21 0.22 0.98 0.70 1.18 0.20 0.98 0.70 1.18 0.19 0.98 0.47 2.16 1.17 0.98 0.41 2.73 1.75 0.98 0.43 2.61 1.63 0.98 1 0.38 3.14 1 2.16 1.18 0.55 2.00 0.83 1.18 0.46 2.73 1.55 1.18 0.48 2.55 1.37 1.18 0.50 2.36 1.18 1.18 0.50 2.38 1.20 1.18 0.49 2.42 1.24 1.18 0.50 2.33 1.15 1.18 1 0.48 2.54 1 1.36 1.18 0.37 4.10 2.91 1.18 0.48 2.49 1.31 1.18 0.50 2.34 1.16 1.18 0.50 2.37 1.19 1.18 0.57 1.92 0.74 1.18 0.55 2.01 0.83 1.18 0.50 1 2.36 1.18 1.18 0.44 2.94 1.75 1.18 0.46 2.71 1.53 1.18 0.44 2.99 1.81 1.18 0.46 2.72 1.54 1.18 0.43 3.03 1.85 1.18 0.46 2.71 1.53 1.18 0.44 2.96 1.78 1.18 1 0.43 3.06 1.88 1.63 0.50 3.28 1.65 1.63 0.48 3.47 1.84 1.63 0.53 2.96 1.33 1.63 0.54 2.90 1.27 2.06 0.64 2.80 0.74 2.29 0.65 3.04 0.75 2.29 0.65 3.02 0.73 2.29 1 0.64 3.11 0.82 2.29 0.66 2.95 0.66 2.29 0.67 2.91 0.61 2.29 0.67 2.92 1 0.63 2.29 0.67 2.92 1 0.63 2.29 0.67 2.92 0.62 2.29 0.68 2.87 0.58 2.29 0.66 2.99 0.69 2.29 1 0.67 2.92 0.62 2.29 0.67 2.92 0.62 2.29 0.67 2.91 0.62 2.29 0.67 2.92 0.62 2.29 0.68 2.86 0.56 2.33 0.68 2.91 0.58 2.33 0.68 2.88 0.55 2027 to 2032 (10 Year) without Improvements Projected Flow (MGD) d/D Projected Capacity (MGD) Excess Capacity Available (MGD) 0.41 0.33 1.71 1.30 0.60 0.42 1.63 1.02 0.60 0.41 1.73 1.13 0.60 0.44 1.52 0.92 0.60 0.38 1.94 1.34 0.60 0.43 1.56 0.96 0.60 0.42 1.62 1.02 0.96 0.54 1.72 0.75 0.96 0.69 1.17 0.20 0.96 0.71 1.14 0.17 0.96 0.71 1.12 0.16 0.96 0.71 1.14 0.17 0.96 0.71 1.13 0.16 0.96 0.70 1.15 0.18 0.96 0.69 1 1.18 0.22 1.05 0.73 1.19 0.13 1.05 0.73 1.19 0.13 1.05 0.73 1.19 0.14 1.05 0.73 1.19 0.14 1.05 0.73 1.18 0.13 1.05 1 0.73 1.18 1 0.13 1.05 0.74 1.18 1 0.13 1.05 0.72 1.21 1 0.15 1.05 0.73 1.18 0.13 1.05 0.74 1.18 0.13 1.05 0.49 2.16 1.10 1.05 0.43 2.73 1.68 1.05 0.44 2.61 1.56 1.05 0.40 3.14 2.09 1.59 0.67 2.00 0.41 1.59 0.55 2.73 1.14 1.59 0.57 2.55 0.96 1.59 0.60 2.36 0.77 1.59 0.60 2.38 0.78 1.59 0.59 2.42 0.83 1.59 1 0.61 2.33 0.74 1.59 0.57 2.54 0.94 1.59 0.43 4.10 2.50 1.59 0.58 1 2.49 0.90 1.59 0.61 2.34 0.74 1.59 0.60 2.37 0.78 1.59 0.69 1.92 0.33 1.59 0.67 2.01 0.41 1.59 0.60 2.36 0.76 1.59 0.53 2.94 1.34 1.59 0.55 2.71 1.12 1.59 0.52 2.99 1.39 1.59 0.55 2.72 1.13 1.59 0.51 3.03 1.44 1.59 0.55 2.71 1.12 1.59 0.52 2.96 1.36 1.59 0.51 3.06 1.47 2.79 0.71 3.28 0.50 2.79 0.68 3.47 0.69 2.79 1 0.77 2.96 1 0.17 2.79 0.79 2.90 0.12 3.18 1.00 2.80 -0.38 3.84 1.00 3.04 -0.80 3.84 1.00 3.02 -0.82 3.84 1.00 3.11 -0.73 3.84 1.00 2.95 -0.89 3.84 1.00 2.91 -0.94 3.84 1 1.00 2.92 -0.92 3.84 1.00 2.92 -0.92 3.84 1.00 2.92 -0.92 3.84 1.00 2.87 -0.97 3.84 1.00 2.99 -0.86 3.84 1.00 2.92 -0.93 3.84 1.00 2.92 -0.93 3.84 1.00 2.91 -0.93 3.84 1.00 2.92 -0.92 3.84 1.00 2.86 -0.99 3.88 1.00 2.91 -0.96 3.88 1.00 2.88 -1.00 2027 to 2032 (10 Year) with Improvements Projected Flow (MGD) d/D Projected Capacity (MGD) Excess Capacity Available (MGD) 0.41 0.33 1.71 1.30 0.60 0.42 1.63 1.02 0.60 0.41 1.73 1.13 0.60 0.44 1.52 0.92 0.60 0.38 1.94 1.34 0.60 0.43 1.56 0.96 0.60 0.42 1.62 1.02 0.20 0.16 3.61 3.41 0.96 0.54 1.72 0.75 0.96 0.69 1.17 0.20 0.96 0.71 1.14 0.17 0.96 0.71 1.12 0.16 0.96 0.71 1.14 0.17 0.96 0.71 1.13 0.16 0.96 0.70 1.15 0.18 0.96 0.69 1.18 0.22 1.05 0.73 1.19 0.13 1.05 0.73 1.19 0.13 1.05 0.73 1.19 0.14 1.05 0.73 1.19 0.14 1.05 0.73 1.18 0.13 1.05 0.73 1.18 0.13 1.05 0.74 1.18 1 0.13 1.05 0.72 1.21 0.15 1.05 0.73 1.18 0.13 1.05 0.74 1.18 0.13 1.05 0.49 2.16 1.10 1.05 0.43 2.73 1.68 1.05 0.44 2.61 1.56 1.05 0.40 3.14 2.09 1.59 0.67 2.00 1 0.41 1.59 0.55 2.73 1.14 1.59 0.57 2.55 0.96 1.59 0.60 2.36 0.77 1.59 0.60 2.38 0.78 1.59 0.59 2.42 0.83 1.59 0.61 2.33 0.74 1.59 0.57 2.54 0.94 1.59 0.43 4.10 1 2.50 1.59 0.58 2.49 0.90 1.59 0.61 2.34 0.74 1.59 0.60 2.37 0.78 1.59 0.69 1.92 0.33 1.59 0.67 2.01 0.41 1.59 0.60 2.36 0.76 1.59 0.53 2.94 1.34 1.59 1 0.55 2.71 1 1.12 1.59 1 0.52 2.99 1.39 1.59 0.55 2.72 1.13 1.59 0.51 3.03 1.44 1.59 0.55 2.71 1.12 1.59 0.52 2.96 1.36 1.59 0.51 3.06 1.47 1.51 0.48 3.28 1.77 1.57 0.47 1 3.47 1.90 1.57 0.52 2.96 1.38 1.57 0.52 2.90 1.33 1.99 0.62 2.80 0.82 2.66 0.72 3.04 0.38 2.66 0.73 3.02 0.36 2.66 0.71 3.11 0.45 2.66 0.74 2.95 0.29 2.66 1 0.75 2.91 0.24 2.66 0.75 2.92 0.26 2.66 0.75 2.92 0.26 2.66 0.75 1 2.92 0.26 2.66 0.76 2.87 0.21 2.66 0.74 2.99 0.32 2.66 0.75 2.92 0.25 2.66 0.75 2.92 0.26 2.66 0.75 2.91 0.25 2.66 0.75 2.92 0.26 2.66 0.76 2.86 0.19 2I% 0.76 2.91 0.22 2.70 0.77 1 2.88 0.18 I New Pipe- 2027 to 2032 (10 Year) I Page 1 of 4 Appendix A Interceptor Branch Segment Model I Diameter (in) Length (ft) B_NEW 1 5106 15 350 B_NEW 2 5108 15 3,682 B_NEW 3 5110 15 780 B_NEW 4 5112 15 733 B_NEW 5 5114 15 625 B_NEW 6 5116 15 1,807 B_NEW 7 5118 15 1,181 C 1 987 12 459 C 2 600 12 428 C 3 608 12 251 C 4 607 12 364 C 5 606 12 396 C 6 605 12 217 C 7 604 12 301 C 8 603 12 246 C 9 602 12 335 C 10 601 12 146 C 11 901 15 23 C 12 887 15 489 C 13 895 15 259 C 14 894 15 48 C 15 618 1 15 214 C 16 893 15 263 C 17 892 15 263 C 18 891 15 262 C 19 890 15 359 C 20 889 15 268 C 21 877 15 363 C 22 696 15 191 C 23 983 1 15 500 C 24 587 15 397 C 25 586 15 251 C 26 585 15 270 C 27 584 15 271 C 28 546 15 27 C 29 583 15 224 C 30 582 15 500 C 31 581 1 15 250 C 1 5046 12 2,675 D 1 580 12 105 D 2 571 12 346 D 3 577 12 500 D 4 576 12 500 D 5 575 12 470 D 6 574 12 29 D 7 543 12 471 D 8 578 12 297 D 9 544 12 168 D 10 573 12 205 D 11 545 12 239 D 12 572 12 501 D 13 579 12 31 D 14 570 1 12 205 D 15 977 15 69 D 16 380 15 12 D 17 504 15 74 D 18 502 15 490 D 19 503 15 490 D 20 975 15 1 134 D 21 443 15 1 352 D 22 1 381 1 15 1 141 Existing System Existing Flow (MGD) d/D Existing Capacity (MGD) Excess Capacity Available (MGD) 0.00 0.00 1.08 1.08 0.00 0.00 1.00 1.00 0.00 0.00 1.10 1.10 0.00 0.00 1.01 1.01 0.06 0.17 1.00 0.94 0.06 0.17 1.02 0.95 0.06 0.17 1.00 0.94 0.06 0.17 1.01 0.95 0.06 0.17 1.00 0.94 0.06 0.17 1.01 0.95 0.19 0.17 2.92 2.73 0.19 0.23 1.60 1.41 0.19 0.24 1.56 1.37 0.19 0.23 1.60 1.41 0.20 0.24 1.54 1.34 0.20 0.23 1.67 1.47 0.20 0.24 1.59 1.39 0.24 0.26 1.57 1.33 0.24 0.25 1.74 1.50 0.26 0.27 1.58 1.32 0.26 0.27 1.64 1.39 0.58 0.42 1.60 1.02 0.58 0.45 1.40 0.82 0.58 1 0.43 1.53 1 0.95 0.59 0.41 1.63 1.04 0.59 0.46 1.37 0.79 0.59 0.46 1.35 0.76 0.59 0.42 1.62 1.03 0.60 0.42 1.63 1.03 0.60 0.47 1.32 0.72 0.65 0.43 1.67 1.02 0.46 0.30 2.40 1.94 0.47 0.43 1.22 0.74 0.47 0.47 1.04 0.57 0.47 0.47 1.04 0.56 0.48 0.48 1.01 0.53 0.48 0.50 0.96 0.48 0.49 0.49 1 1.00 0.51 0.49 0.49 1.00 0.52 0.50 0.50 0.99 0.49 0.50 0.49 1.02 0.52 0.51 0.50 1.01 0.50 0.51 0.50 1.03 0.52 0.51 0.50 1.02 0.51 0.51 0.50 1.03 0.52 0.51 0.36 1.81 1.30 0.53 0.34 2.09 1.56 0.53 0.35 2.01 1.48 0.53 0.36 1.87 1.35 0.53 0.36 1.87 1.35 0.53 0.36 1.88 1.35 0.53 0.36 1.87 1.34 0.53 0.38 1 1.69 1.17 Town of Marana Sewer Infrastructure Improvement Plan (IIP) Sewer Pipe Capacity Tables 2022 to 2027 (5 Year) without Improvements Projected Flow (MGD)J d/D Projected Capacity (MGD) Excess Capacity �Available(MGD) 0.51 0.49 1.08 0.57 0.51 0.50 1.01 0.49 0.51 0.48 1.10 0.59 0.51 0.50 1.01 0.50 0.55 0.53 1.00 0.45 0.55 0.53 1.02 0.46 0.55 0.53 1.01 0.45 0.55 0.53 1.00 0.45 0.55 0.53 1.00 0.45 0.55 0.53 1.02 0.46 0.67 0.33 2.87 2.20 0.67 0.44 1.64 0.97 0.67 0.47 1.50 0.83 0.67 0.46 1.57 0.90 0.68 1 0.47 1.53 0.85 0.68 0.44 1.68 1.00 0.68 0.46 1.59 1 0.91 0.72 0.48 1.57 0.85 0.72 0.45 1.74 1.02 0.74 0.48 1.57 0.83 0.74 0.47 1.65 0.91 1.08 0.60 1.60 0.52 1.08 1 0.66 1.40 0.32 1.08 0.62 1.53 0.45 1.08 0.60 1 1.63 0.55 1.08 0.67 1.38 0.29 1.08 0.68 1.34 0.26 1.08 0.60 1.62 0.54 1.10 0.60 1.64 0.54 1.10 0.70 1.32 0.22 1.16 0.61 1.67 0.52 0.80 0.40 2.41 1.60 0.83 0.61 1.22 0.39 0.83 0.68 1.04 0.21 0.83 0.68 1.04 0.21 0.83 0.69 1.01 0.18 0.83 0.72 0.96 0.13 0.84 0.70 1.00 0.15 0.84 0.70 1 1.00 0.16 0.86 0.72 0.99 0.13 0.86 0.70 1.02 0.17 0.86 0.71 1.01 0.15 0.87 0.70 1.03 0.17 0.87 0.69 1.06 0.20 0.87 0.70 1.03 0.16 0.87 0.49 1.81 0.94 0.89 0.47 1.98 1.09 0.89 0.49 1.87 0.98 0.89 0.49 1.87 0.98 0.89 0.48 1.88 0.99 0.89 0.49 1.84 0.95 0.89 0.49 1.87 0.98 0.89 0.51 HE 0.83 2022 to 2027 (5 Year) with Improvements Projected Flow (MGD) d/D Projected Capacity (MGD) Excess Capacity Available (MGD) 0.51 0.49 1.08 0.57 0.51 0.50 1.01 0.49 0.51 0.48 1.10 0.59 0.51 0.50 1.01 0.50 0.55 0.53 1.00 0.45 0.55 0.53 1.02 0.46 0.55 0.53 1.01 0.45 0.55 0.53 1.00 0.45 0.55 0.53 1.00 0.45 0.55 0.53 1.02 0.46 0.67 0.33 2.87 2.20 0.67 0.44 1.64 0.97 0.67 0.47 1.50 0.83 0.67 0.46 1.57 0.90 0.68 0.47 1.53 0.85 0.68 0.44 1.68 1.00 0.68 0.46 1.59 0.91 0.72 0.48 1.57 0.85 0.72 0.45 1.74 1.02 0.74 0.48 1.57 0.83 0.74 0.47 1.65 0.91 1.08 0.60 1.60 0.52 1.08 0.66 1.40 0.32 1.08 0.62 1.53 0.45 1.08 0.60 1.63 0.55 1.08 0.67 1.38 0.29 1.08 0.68 1.34 0.26 1.08 0.60 1.62 0.54 1.10 0.60 1.64 0.54 1.10 0.70 1.32 0.22 1.16 0.61 1.67 0.52 0.51 1 0.40 1.51 1 1.00 0.80 0.40 2.41 1.60 0.83 0.61 1.22 0.39 0.83 0.68 1.04 0.21 0.83 0.68 1.04 0.21 0.83 0.69 1.01 0.18 0.83 0.72 0.96 0.13 0.84 0.70 1.00 0.15 0.84 0.70 1.00 1 0.16 0.86 0.72 0.99 0.13 0.86 0.70 1.02 0.17 0.86 0.71 1.01 0.15 0.87 0.70 1.03 0.17 0.87 0.69 1.06 0.20 0.87 0.70 1.03 0.16 0.87 0.49 1.81 0.94 0.89 0.47 1.98 1 1.09 0.89 0.49 1.87 0.98 0.89 0.49 1.87 0.98 0.89 0.48 1.88 0.99 0.89 0.49 1.84 0.95 0.89 0.49 1.87 0.98 0.89 0.51 1.72 0.83 2027 to 2032 (10 Year) without Improvements Projected Flow (MGD) d/D Projected Capacity (MGD) Excess Capacity Available (MGD) 0.51 0.49 1.08 0.57 0.51 0.50 1.01 0.49 0.51 0.48 1.10 0.59 0.51 0.50 1.01 0.50 0.55 0.53 1.00 0.45 0.55 0.53 1.02 0.46 0.55 0.53 1.01 0.45 0.55 0.53 1.00 0.45 0.55 0.53 1.00 0.45 0.55 0.53 1.02 0.46 0.67 0.33 2.87 2.20 0.67 0.44 1.64 0.97 0.67 0.47 1.50 0.83 0.67 0.46 1.57 0.90 0.68 1 0.47 1.53 0.85 0.68 0.44 1.68 1.00 0.68 0.46 1.59 0.91 0.72 0.48 1.57 0.85 0.72 0.45 1.74 1.02 0.74 0.48 1.57 0.83 0.74 0.47 1.65 0.91 1.08 0.60 1.60 0.52 1.08 0.66 1.40 0.32 1.08 0.62 1.53 0.45 1.08 0.60 1.63 0.55 1.08 0.67 1.38 0.29 1.08 0.68 1.34 0.26 1.08 0.60 1.62 0.54 1.10 0.60 1.64 0.54 1.10 0.70 1.32 0.22 1.16 0.61 1.67 0.52 0.51 0.40 1.51 1.00 0.80 0.40 2.41 1.60 0.83 0.61 1.22 0.39 0.83 0.68 1.04 0.21 0.83 0.68 1.04 0.21 0.83 0.69 1.01 0.18 0.83 0.72 0.96 0.13 0.84 0.70 1.00 0.15 0.84 0.70 1.00 0.16 0.86 0.72 0.99 0.13 0.86 0.70 1.02 0.17 0.86 0.71 1.01 0.15 0.87 0.70 1.03 0.17 0.87 0.69 1 1.06 0.20 0.87 0.70 1.03 0.16 0.87 0.49 1.81 0.94 0.89 0.47 1.98 1.09 0.89 0.49 1.87 0.98 0.89 0.49 1.87 0.98 0.89 0.48 1.88 0.99 0.49 1.84 0.95 X9 0.491 1.87 10.98 0.89 0.51 1.72 0.83 2027 to 2032 (10 Year) with Improvements Projected Flow (MGD) d/D Projected Capacity (MGD) Excess Capacity Available (MGD) 1.28 0.57 2.05 0.77 1.34 0.63 1.84 0.50 1.34 0.63 1.84 0.49 1.34 0.69 1.62 0.28 1.34 0.71 1.59 0.25 1.34 0.65 1.76 0.42 1.34 0.66 1.72 0.38 0.51 0.49 1.08 0.57 0.51 0.50 1.01 0.49 0.51 0.48 1.10 0.59 0.51 0.50 1.01 0.50 0.55 0.53 1.00 0.45 0.55 0.53 1.02 0.46 0.55 0.53 1.01 0.45 0.55 0.53 1.00 0.45 0.55 0.53 1.00 0.45 0.55 0.53 1.02 0.46 0.67 0.33 2.87 2.20 0.67 0.44 1.64 0.97 0.67 0.47 1.50 0.83 0.67 0.46 1.57 0.90 0.68 1 0.47 1.53 0.85 0.68 1 0.44 1.68 1 1.00 0.68 0.46 1.59 0.91 0.72 0.48 1.57 0.85 0.72 0.45 1.74 1.02 0.74 0.48 1.57 0.83 0.74 0.47 1.65 0.91 1.08 0.60 1.60 0.52 1.08 0.66 1.40 0.32 1.08 0.62 1.53 0.45 1.08 0.60 1 1.63 0.55 1.08 0.67 1.38 0.29 1.08 0.68 1.34 0.26 1.08 0.60 1.62 0.54 1.10 0.60 1.64 0.54 1.10 0.70 1.32 0.22 1.16 0.61 1.67 0.52 0.51 1 0.40 1.51 1 1.00 0.80 0.40 2.41 1.60 0.83 0.61 1.22 0.39 0.83 0.68 1.04 0.21 0.83 0.68 1.04 0.21 0.83 0.69 1.01 0.18 0.83 0.72 0.96 0.13 0.84 0.70 1.00 0.15 0.84 0.70 1.00 0.16 0.86 0.72 0.99 0.13 0.86 0.70 1.02 0.17 0.86 0.71 1.01 0.15 0.87 0.70 1.03 0.17 0.87 0.69 1.06 0.20 0.87 0.70 1.03 0.16 0.87 0.49 1.81 0.94 0.89 0.47 1.98 1.09 0.89 0.49 1.87 0.98 0.89 0.49 1.87 0.98 0.89 0.48 1.88 0.99 0.89 0.49 1.84 0.95 0.89 0.49 1.87 0.98 0.89 0.51 1.72 0.83 New Pipe - 2027 to 2032 (10 Year) New Pipe - 2027 to 2032 (10 Year) New Pipe - 2027 to 2032 (10 Year) New Pipe - 2027 to 2032 (10 Year) New Pipe - 2027,0 2632 (10 Year) I New Pipe- 2022 to 2027 (5 Year) I Page 2 of 4 Appendix A Interceptor Branch Segment Model I Diameter (in) Length (ft) E 1 287 12 85 E 2 403 12 500 E 3 402 12 500 E 4 409 12 500 E 5 408 12 500 E 6 407 12 500 E 7 406 12 500 E 8 405 12 487 E 9 404 12 39 E 10 4004 12 24 E 11 400 12 23 E 12 965 12 337 E 13 86 12 158 E 14 91 12 355 E 15 90 1 12 465 E 16 89 12 299 E 17 88 12 349 E 18 87 12 335 E 19 96 12 319 E 20 81 15 288 E 21 80 15 84 F 1 79 15 448 F 2 78 15 501 F 3 77 15 500 F 4 76 15 500 F 5 75 15 501 F 6 74 15 500 F 7 73 15 499 F 8 72 15 500 F 9 71 1 15 499 F 10 962 15 476 G 1 970 18 563 G 2 461 18 500 G 3 460 18 477 G 4 5064 18 80 G 1 459 18 57 G_NEW 2 5120 15 1,369 G_NEW 3 5122 15 516 H 1 978 15 499 H 2 458 15 387 H 3 457 15 394 H 4 456 21 337 H 5 484 12 48 1 1 499 12 349 1 2 498 12 211 1 3 487 15 273 1 4 497 15 400 1 5 496 15 164 1 6 495 15 380 1 7 494 15 406 1 8 493 15 171 1 9 492 15 219 1 10 491 15 500 1 11 490 15 500 1 12 489 15 131 1 13 488 15 40 I_NEW 1 500 21 77 I_NEW 2 455 21 318 I_NEW 3 5018 21 815 I_NEW 4 5014 21 2,028 I_NEW 5 5012 21 1,740 J 1 382 15 359 1 2 383 15 400 J 3 384 15 500 J 4 385 15 500 J 5 442 15 500 J 6 441 15 500 J 7 440 15 500 J 8 439 15 260 J 9 967 15 492 J 10 100 15 500 J 11 99 15 500 J 12 98 15 500 J 13 97 18 537 1 14 963 18 139 J 15 39 18 44 Existing System Existing Flow (MGD) d/D Existing Capacity (MGD) Excess Capacity Available (MGD) 0.19 0.30 0.97 0.78 0.19 0.30 1.01 0.81 0.19 0.30 1.01 0.81 0.19 0.30 1.01 0.81 0.19 0.30 1.01 0.81 0.19 0.30 1.01 0.81 0.19 0.30 1.01 0.81 0.19 0.25 1.38 1.18 0.21 0.32 0.98 0.76 0.23 0.32 1.05 0.83 0.23 0.31 1.09 0.85 0.29 0.39 0.92 0.63 0.31 0.40 0.92 0.61 0.31 0.40 0.92 0.61 0.31 0.40 0.92 0.61 0.35 0.42 0.93 0.58 0.35 0.43 0.92 0.57 0.35 0.43 0.92 0.56 0.36 0.43 0.92 0.57 0.37 0.32 1.67 1.31 0.37 0.32 1.65 1.28 0.65 0.43 1.73 1.08 0.65 0.42 1.76 1 1.10 0.65 0.42 1.82 1.16 0.65 0.41 1.89 1.24 0.65 0.42 1.75 1.10 0.65 0.43 1.73 1.07 0.65 0.41 1.83 1.17 0.65 0.42 1.75 1.09 0.65 1 0.40 1.90 1.25 0.65 0.43 1.70 1 1.05 0.27 0.20 3.08 2.81 0.28 0.21 2.97 2.69 0.28 0.20 3.09 2.81 0.28 0.13 7.66 7.39 0.20 0.24 1.61 1.41 0.23 0.16 3.95 3.72 0.29 0.28 1.65 1.36 0.29 0.19 3.67 3.38 0.29 0.29 1.62 1.33 0.55 0.46 1.26 0.71 0.55 0.45 1.31 0.77 0.59 0.41 1.66 1.07 0.59 0.43 1.57 0.97 0.61 0.42 1.64 1.03 0.61 0.41 1.70 1.10 0.61 0.42 1.65 1.04 0.61 0.43 1.60 1.00 0.61 0.43 1.57 0.97 0.61 0.43 1.61 1 1.00 0.61 0.43 1.59 0.98 0.61 0.40 1.83 1.22 0.61 0.34 2.38 1.77 1.06 0.57 1.74 0.67 1.06 0.51 2.04 0.98 1.06 0.54 1.87 0.81 1.06 0.56 1.77 0.70 1.06 0.52 1.97 0.91 1.06 0.54 1.87 0.81 1.06 0.54 1.87 0.81 1.06 0.51 2.06 1.00 1.07 0.56 1.78 0.71 1.07 1 0.54 1.87 0.80 1.07 0.54 1.87 0.80 1.07 0.54 1.87 0.80 1.07 0.40 3.18 2.11 1.07 0.48 2.31 1.24 1.07 0.46 2.51 1.44 Town of Marana Sewer Infrastructure Improvement Plan (IIP) Sewer Pipe Capacity Tables 2022 to 2027 (5 Year) without Improvements Projected Flow(MGD) d/D Projected Capacity (MGD) Excess Capacity Available (MGD) 0.47 0.45 1.11 0.64 0.52 0.51 1.01 0.49 0.52 0.51 1.01 0.49 0.52 0.51 1.01 0.49 0.52 0.51 1.01 0.49 0.57 0.54 1.01 0.43 0.57 0.54 1.01 0.43 0.57 0.45 1.38 0.80 0.58 0.56 0.98 0.40 0.60 0.45 1.41 0.81 0.60 0.53 1.08 0.48 0.65 0.62 0.93 0.28 0.66 0.63 0.92 0.25 0.66 0.63 0.92 0.25 0.66 1 0.63 0.92 1 0.26 0.70 0.66 0.92 0.21 0.72 0.66 0.94 0.22 0.72 0.67 0.92 0.20 0.73 0.68 0.91 0.18 0.74 0.46 1.71 0.97 0.74 0.47 1.66 0.92 1.08 0.57 1.74 0.66 1.08 1 0.57 1.75 0.68 1.08 0.55 1.82 0.74 1.08 0.54 1.89 0.81 1.08 0.57 1.76 0.68 1.08 0.57 1.73 0.65 1.08 0.55 1.83 0.76 1.08 0.57 1.74 0.66 1.08 0.54 1.90 0.82 1.08 0.58 1 1.70 0.63 1.87 0.55 3.19 1.33 1.89 0.58 2.97 1.07 1.99 0.58 3.08 1.09 1.99 0.40 5.99 4.00 0.35 0.32 1.61 1.26 0.40 0.21 3.96 3.56 0.47 0.36 1.65 1.18 0.47 0.24 3.66 3.20 0.47 0.37 1.63 1.16 2.36 1.00 1.26 -1.10 2.36 1 1.00 1.31 -1.05 2.41 1.00 1.63 -0.78 2.41 1.00 1.57 -0.84 2.42 1.00 1.63 -0.79 2.42 1.00 1.70 -0.72 2.42 1.00 1.65 -0.77 2.42 1.00 1.61 -0.81 2.63 1.00 1.57 -1.06 2.63 1 1.00 1.61 1 -1.02 2.63 1.00 1.58 -1.04 2.63 1.00 1.80 -0.83 2.63 1.00 2.50 -0.13 3.36 1.00 1.87 -1.49 3.36 1.00 1.93 -1.43 3.36 1.00 1.87 -1.50 3.36 1.00 1.77 -1.59 3.36 1.00 1.98 -1.39 3.36 1.00 1.88 -1.49 3.36 1.00 1.87 -1.49 3.36 1.00 2.06 -1.30 3.42 1.00 1.84 -1.58 3.42 1.00 1.81 -1.61 3.42 1.00 1.87 -1.55 3.42 1.00 1.87 755 3.42 1.00 3.18 -0.25 3.42 1 10 2.31 -1.11 3.42 1.00 2.48 -0.94 2022 to 2027 (5 Year) with Improvements Projected Flow (MGD) d/D Projected Capacity (MGD) Excess Capacity Available (MGD) 0.47 0.45 1.11 0.64 0.52 0.51 1.01 0.49 0.52 0.51 1.01 0.49 0.52 0.51 1.01 0.49 0.52 0.51 1.01 0.49 0.57 0.54 1.01 0.43 0.57 0.54 1.01 0.43 0.57 0.45 1.38 0.80 0.58 0.56 0.98 0.40 0.60 0.45 1.41 0.81 0.60 0.53 1.08 0.48 0.65 0.62 0.93 0.28 0.66 0.63 0.92 0.25 0.66 0.63 0.92 0.25 0.66 1 0.63 0.92 1 0.26 0.70 0.66 0.92 0.21 0.72 0.66 0.94 0.22 0.72 0.67 0.92 0.20 0.73 0.68 0.91 0.18 0.74 0.46 1.71 0.97 0.74 0.47 1.66 0.92 1.08 0.57 1.74 0.66 1.08 1 0.57 1.75 1 0.68 1.08 0.55 1.82 0.74 1.08 0.54 1.89 0.81 1.08 0.57 1.76 0.68 1.08 0.57 1.73 0.65 1.08 0.55 1.83 0.76 1.08 0.57 1.74 0.66 1.08 0.54 1.90 0.82 1.08 1 0.58 1.70 1 0.63 1.87 0.55 3.19 1.33 1.89 0.58 2.97 1.07 1.99 0.58 3.08 1.09 1.99 0.49 4.13 2.14 0.35 0.32 1.61 1.26 0.40 0.21 3.96 3.56 0.47 0.36 1.65 1.18 0.47 0.24 3.66 3.20 0.26 0.27 1.63 1.37 0.28 0.32 1.26 0.98 0.28 0.31 1.31 1.03 0.34 1 0.31 1.63 1.29 0.34 0.31 1.57 1.23 0.35 0.31 1.63 1.28 0.35 0.31 1.70 1.35 0.35 0.31 1.65 1.30 0.35 0.32 1.61 1.26 0.59 0.42 1.57 1 0.98 0.59 0.42 1.61 1 1.02 0.59 1 0.42 1.58 0.99 0.59 0.39 1.80 1.21 0.59 0.33 2.50 1.91 0.21 0.15 4.06 3.85 2.16 0.51 4.11 1.96 2.16 0.50 4.38 2.22 2.16 0.44 5.35 3.19 2.16 0.44 5.45 1 3.29 1.38 0.64 1.87 0.49 1.38 0.63 1.93 0.54 2027 to 2032 (10 Year) without Improvements Projected Flow (MGD) d/D Projected Capacity (MGD) Excess Capacity Available (MGD) 0.39 0.41 1.11 0.72 0.46 0.48 1.01 0.54 0.46 0.48 1.01 0.54 0.46 0.48 1.01 0.54 0.46 0.48 1.01 0.54 0.58 0.54 1.01 0.43 0.58 0.54 1.01 0.43 0.58 0.45 1.38 0.80 0.59 0.56 0.98 0.39 0.61 0.46 1.41 0.80 0.61 0.54 1.08 0.47 0.67 0.63 0.93 0.26 0.68 0.64 0.92 0.24 0.68 0.64 0.92 0.24 0.68 0.64 0.92 0.24 0.72 0.67 0.92 0.20 0.79 0.71 0.94 0.14 0.80 0.72 0.92 0.12 0.80 0.73 0.91 0.11 0.81 0.48 1.71 0.90 0.81 0.49 1.66 0.84 1.35 0.66 1.74 0.39 1.35 0.66 1.75 0.41 1.35 0.64 1.82 0.47 1.35 0.62 1.89 0.54 1.35 0.66 1.76 0.41 1.35 0.66 1.73 0.38 1.35 0.64 1.83 0.49 1.35 0.66 1.74 0.40 1.35 0.62 1.90 0.56 1.35 0.67 1.70 0.36 3.49 1.00 3.19 -0.30 3.51 1.00 2.97 -0.55 3.61 1.00 3.08 -0.53 3.61 0.72 4.13 0.52 0.35 0.32 1.61 1.26 0.40 0.21 3.96 3.56 0.47 0.36 1.65 1.18 0.47 0.24 3.66 3.20 0.26 0.27 1.63 1.37 0.28 0.32 1.26 0.98 0.28 0.31 1.31 1.03 0.34 0.31 1.63 1.29 0.34 0.31 1.57 1.23 0.35 0.31 1.63 1.28 0.35 0.31 1.70 1.35 0.35 0.31 1.65 1.30 0.35 0.32 1.61 T26 0.59 0.42 1.57 0.98 0.59 0.42 1.61 1 1.02 0.59 0.42 1.58 0.99 0.59 0.39 1.80 1.21 0.59 0.33 2.50 1.91 0.21 0.15 4.06 3.85 3.76 0.75 4.11 0.35 3.76 0.71 4.38 0.61 3.76 0.62 5.35 1.58 3.76 0.61 1 5.45 1.68 1.38 0.64 1.87 0.49 1.38 0.63 1.93 0.54 2027 to 2032 (10 Year) with Improvements Projected Flow (MGD) d/D Projected Capacity (MGD) Excess Capacity Available (MGD) 0.27 0.34 1.11 0.84 0.33 0.39 1.01 0.68 0.33 0.39 1.01 0.68 0.33 0.39 1.01 0.68 0.33 0.39 1.01 0.68 0.45 0.47 1.01 0.56 0.45 0.47 1.01 0.56 0.45 0.39 1.38 0.93 0.46 0.48 0.98 0.52 0.47 0.40 1.41 0.94 0.48 0.47 1.08 0.60 0.54 0.55 0.93 0.39 0.55 0.56 0.92 0.37 0.55 0.56 0.92 0.37 0.55 0.56 0.92 0.37 0.59 0.58 0.92 0.33 0.67 0.62 0.94 0.27 0.67 0.63 0.92 0.25 0.68 0.64 0.91 0.23 0.68 0.44 1.71 1.03 0.69 0.45 1.66 0.97 1.22 0.62 1.74 0.52 1.22 0.61 1.75 0.53 1.22 1 0.60 1.82 1 0.60 1.22 0.59 1.89 0.67 1.22 0.61 1.76 0.54 1.22 0.62 1.73 0.51 1.22 0.60 1.83 0.61 1.22 0.62 1.74 0.52 1.22 0.58 1.90 0.68 1.22 0.63 1.70 0.48 2.43 1 0.65 3.19 0.76 2.45 0.69 2.97 0.52 2.54 0.69 3.08 0.54 2.54 0.57 4.13 1.59 1.34 0.64 1.82 0.48 1.34 0.61 1.93 0.59 0.35 0.32 1.61 1.26 0.40 0.21 3.96 3.56 0.47 0.36 1.65 1.18 0.47 0.24 3.66 3.20 0.26 0.27 1.63 1.37 0.28 0.32 1.26 0.98 0.28 0.31 1.31 1.03 0.34 0.31 1.63 1.29 0.34 0.31 1.57 1.23 0.35 0.31 1.63 1.28 0.35 0.31 1.70 1.35 0.35 0.31 1.65 1.30 0.35 0.32 1.61 1.26 0.59 0.42 1.57 0.98 0.59 0.42 1.61 1.02 0.59 0.42 1.58 0.99 0.59 0.39 1.80 1 1.21 0.59 0.33 2.50 1.91 0.21 0.15 4.06 3.85 3.88 0.77 4.11 0.23 3.88 0.73 4.38 0.49 3.88 0.63 5.35 1.47 3.88 0.62 5.45 1.57 1.38 0.64 1.87 0.49 1.38 0.63 1.93 0.54 New Ppe - 2027 to 2032 (10 Year) New P!2 pe - 2027 to 2032 (10 Year I New Pipe - 2022 to 2027 (5 Year) I New Pipe - 2022 to 2027 (5 Year) New Pipe - 2022 to 2027 (5 Year) Page 3 of 4 Appendix A Interceptor Branch Segment Model I Diameter (in) Length (ft) J_NEW 1 5104 27 308 J_NEW 2 5010 27 1,245 J_NEW 3 5008 27 1,342 1_NEW 4 5006 27 1,338 J_NEW 5 5004 27 1,229 K 1 61 18 49 K 2 50 18 494 K 3 59 18 500 K 4 58 18 500 K 5 57 18 500 K 6 56 18 500 K 7 55 18 500 K 8 54 18 500 K 9 53 18 500 K 10 52 1 18 500 K 11 51 18 500 K 12 961 18 500 K 13 36 18 500 K 14 35 18 500 K 15 34 18 500 K 16 33 18 500 K 17 32 18 500 K 18 31 1 18 500 K 19 30 18 500 K 20 29 18 500 K 21 28 18 500 K 22 27 18 500 K 23 26 18 417 K 24 25 18 72 K 25 23 18 529 K 26 22 1 18 500 K 27 21 18 500 K 28 20 18 330 K 29 960 18 62 K 30 2 24 600 K 31 9 24 600 K 32 8 24 600 K 33 7 24 600 K 34 1 6 24 600 K 35 5 24 600 K 36 4 24 600 K 37 3 24 600 K 38 959 24 406 K 39 14 24 49 K 40 16 24 583 K 41 15 24 54 K 42 4002 24 5 L_NEW 1 5058 27 1,211 L_NEW 2 5060 27 1,424 L_NEW 3 5056 27 5,243 L_NEW 4 5054 27 5,807 L_NEW 5 5052 27 5,257 L NEW 1 5100 27 684 Existing System Existing Flow (MGD) d/D Existing Capacity (MGD) Excess Capacity Available (MGD) 1.64 0.61 2.38 0.74 1.64 0.53 2.94 1.30 1.64 0.52 3.04 1.41 1.64 0.51 3.21 1.57 1.64 0.54 2.87 1.24 1.64 0.49 3.40 1.77 1.64 0.52 3.04 1.41 1.64 0.54 2.89 1.25 1.64 0.51 3.13 1.50 1.64 0.56 2.71 1.07 1.64 0.52 3.04 1.41 1.64 0.52 3.04 1.41 1.64 0.55 2.81 1.17 1.64 0.53 3.01 1.38 1.64 0.50 3.29 1.66 1.64 0.52 3.04 1.41 1.64 0.51 3.21 1.57 1.64 0.54 2.87 1.24 1.64 0.52 3.04 1.41 1.64 0.52 3.04 1.41 1.64 0.50 3.28 1.64 1.64 0.55 2.79 1.15 1.64 0.52 3.05 1.42 1.64 0.53 3.01 1.38 1.64 1 0.52 3.05 1.41 1.64 0.52 3.04 1.41 1.64 0.52 3.04 1.41 1.64 0.52 3.04 1.41 1.64 0.32 7.20 5.56 1.64 0.37 5.58 3.95 1.64 0.37 5.58 3.95 1.64 0.37 5.58 3.95 1.64 1 0.37 5.64 1 4.01 1.64 0.37 5.58 3.95 1.64 0.37 5.58 3.95 1.64 0.37 5.58 3.95 1.64 0.37 5.58 3.95 1.64 0.37 5.59 3.95 1.64 0.37 5.51 3.88 1.64 0.37 5.56 3.93 1.64 1 0.37 5.63 3.99 1.64 0.17 25.39 23.76 Town of Marana Sewer Infrastructure Improvement Plan (IIP) Sewer Pipe Capacity Tables 2022 to 2027 (5 Year) without Improvements Projected Flow (MGD)J d/D Projected Capacity (MGD) Excess Capacity �Available(MGD) 4.33 1.00 2.92 -1.40 4.33 1.00 2.89 -1.44 4.33 1.00 3.04 -1.29 4.33 1.00 3.06 -1.27 4.33 1.00 3.03 -1.30 4.33 1.00 3.12 -1.21 4.33 1.00 3.04 -1.29 4.33 1.00 3.06 -1.27 4.33 1.00 2.98 -1.35 4.33 1 1.00 2.87 1 -1.46 4.33 1.00 3.04 -1.29 4.33 1.00 3.04 -1.28 4.33 1.00 3.02 -1.31 4.33 1.00 2.97 -1.36 4.33 1.00 3.29 -1.04 4.33 1.00 3.04 -1.29 4.33 1.00 3.21 -1.12 4.33 1.00 2.88 -1.45 4.33 1.00 3.04 -1.29 4.33 1.00 3.04 -1.28 4.33 1.00 3.09 -1.24 4.33 1.00 3.15 -1.18 4.33 1.00 3.05 -1.27 4.33 1.00 3.01 -1.32 4.33 1.00 3.05 -1.28 4.33 1.00 3.04 -1.28 4.33 1.00 3.04 -1.28 4.33 1.00 3.04 -1.29 4.33 0.56 7.16 2.83 4.37 0.67 5.59 1.21 4.37 0.67 5.58 1.20 4.37 0.67 5.59 1.21 4.37 0.66 5.64 1.27 4.37 0.67 1 5.58 1.21 4.37 0.67 5.59 1.21 4.37 0.67 5.58 1.21 4.37 0.67 5.58 1.21 4.37 0.67 5.59 1.22 4.37 0.68 5.41 1.04 4.37 0.67 5.57 1.20 4.37 0.66 5.67 1.30 4.37 0.38 14.42 10.05 2022 to 2027 (5 Year) with Improvements Projected Flow (MGD) d/D Projected Capacity (MGD) Excess Capacity Available (MGD) 1.38 0.16 26.57 25.19 3.36 0.46 7.84 4.48 3.36 0.47 7.55 4.19 3.42 0.46 7.76 4.34 3.44 0.48 7.47 4.02 1.52 0.51 2.92 1.40 1.64 0.54 2.89 1.24 1.64 0.52 3.04 1.40 1.64 0.52 3.06 1.42 1.64 0.52 3.03 1.39 1.64 0.52 3.12 1.48 1.64 0.52 3.04 1.40 1.64 0.52 3.06 1.42 1.64 0.53 2.98 1.34 1.64 1 0.54 2.87 1.23 1.64 0.52 3.04 1.40 1.64 0.52 3.04 1.40 1.64 0.53 3.02 1.38 1.64 0.53 2.97 1.33 1.64 0.50 3.29 1.65 1.64 0.52 3.04 1.40 1.64 0.51 3.21 1.56 1.64 1 0.54 2.88 1.23 1.64 0.52 1 3.04 1 1.40 1.64 0.52 3.04 1.40 1.64 0.52 3.09 1.45 1.64 0.51 3.15 1.51 1.64 0.52 3.05 1.41 1.64 0.53 3.01 1.37 1.64 0.52 3.05 1.41 1.64 1 0.52 3.04 1.40 1.64 0.52 3.04 1.40 1.64 0.52 3.04 1.40 1.64 0.33 7.16 5.52 4.39 0.67 5.59 1.20 4.39 0.67 5.58 1.19 4.39 0.67 5.59 1.20 4.39 0.66 5.64 1.25 4.39 0.67 5.58 1.20 4.39 0.67 5.59 1.20 4.39 0.67 5.58 1.19 4.39 0.67 5.58 1.19 4.39 0.67 5.59 1.20 4.39 0.68 5.41 1.02 4.39 0.67 5.57 1.18 4.39 0.66 5.67 1.28 4.39 0.38 14.42 10.03 2.82 0.44 7.06 4.24 2.91 0.43 7.52 4.61 2.91 0.43 7.59 4.68 2.95 0.36 10.70 7.75 2.95 0.38 9.46 6.51 2027 to 2032 (10 Year) without Improvements Projected Flow (MGD) d/D Projected Capacity (MGD) Excess Capacity Available (MGD) 1.38 0.16 26.57 25.19 4.92 0.57 7.84 2.92 4.92 0.59 7.55 2.63 4.98 0.58 7.76 2.78 5.03 0.60 7.47 2.43 2.16 0.64 2.92 0.77 2.32 0.68 2.89 0.57 2.32 0.65 3.04 0.72 2.32 0.65 3.06 0.74 2.32 0.66 3.03 0.71 2.32 0.64 3.12 0.80 2.32 0.65 3.04 0.72 2.32 0.65 3.06 0.74 2.32 0.66 2.98 0.66 2.32 0.68 1 2.87 0.55 2.32 0.65 3.04 0.72 2.32 0.65 3.04 0.72 2.32 0.66 3.02 0.70 2.32 0.66 2.97 0.65 2.32 0.62 3.29 0.97 2.32 0.65 3.04 0.72 2.32 0.63 3.21 0.89 2.32 0.68 1 2.88 0.56 2.32 0.65 3.04 0.72 2.32 0.65 3.04 0.72 2.32 0.65 3.09 0.77 2.32 0.64 3.15 0.83 2.32 0.65 3.05 0.73 2.32 0.66 3.01 0.69 2.32 0.65 3.05 0.73 2.32 0.65 3.04 0.72 2.32 0.65 3.04 0.73 2.32 0.65 3.04 0.72 2.32 0.39 7.16 4.84 4.49 0.68 5.59 1.10 4.49 0.68 5.58 1.09 4.49 0.68 5.59 1.10 4.49 0.67 5.64 1.16 4.49 0.68 5.58 1.10 4.49 0.68 5.59 1.10 4.49 0.68 5.58 1.10 4.49 0.68 5.58 1.09 4.49 0.68 5.59 1.10 4.49 0.69 5.41 0.92 4.49 0.68 5.57 1.08 4.49 0.67 5.67 1.19 6.58 0.47 14.42 7.84 4.01 0.54 7.06 3.06 4.25 0.54 7.52 3.27 4.25 0.53 7.59 3.34 4.55 0.46 10.70 6.15 2.28 0.33 9.46 7.19 2027 to 2032 (10 Year) with Improvements Projected Flow (MGD) d/D Projected Capacity (MGD) Excess Capacity Available (MGD) 1.38 0.16 26.57 25.19 5.04 0.58 7.84 2.80 5.04 0.60 7.55 2.51 5.10 0.59 7.76 2.66 5.15 0.61 7.47 2.32 2.16 0.64 2.92 0.77 2.32 0.68 2.89 0.57 2.32 0.65 3.04 0.72 2.32 0.65 3.06 0.74 2.32 0.66 3.03 0.71 2.32 0.64 3.12 0.80 2.32 0.65 3.04 0.72 2.32 0.65 3.06 0.74 2.32 0.66 2.98 0.66 2.32 0.68 2.87 0.55 2.32 0.65 3.04 0.72 2.32 0.65 3.04 0.72 2.32 0.66 3.02 0.70 2.32 0.66 2.97 0.65 2.32 0.62 3.29 0.97 2.32 0.65 3.04 0.72 2.32 0.63 3.21 0.89 2.32 0.68 2.88 0.56 2.32 0.65 3.04 0.72 2.32 0.65 3.04 0.72 2.32 1 0.65 3.09 0.77 2.32 0.64 3.15 0.83 2.32 0.65 3.05 0.73 2.32 0.66 3.01 0.69 2.32 0.65 3.05 0.73 2.32 0.65 3.04 0.72 2.32 0.65 3.04 0.73 2.32 0.65 3.04 0.72 2.32 1 0.39 7.16 4.84 4.49 0.68 5.59 1.10 4.49 0.68 5.58 1.09 4.49 0.68 5.59 1.10 4.49 0.67 5.64 1.16 4.49 0.68 5.58 1.10 4.49 0.68 5.59 1.10 4.49 0.68 5.58 1.10 4.49 0.68 5.58 1.09 4.49 0.68 5.59 1.10 4.49 0.69 5.41 0.92 4.49 0.68 5.57 1.08 4.49 0.67 5.67 1.19 6.58 0.47 14.42 7.84 4.01 0.54 7.06 3.06 4.25 0.54 7.52 3.27 4.25 0.53 7.59 3.34 4.55 0.46 10.70 6.15 2.27 0.33 9.43 7.16 2.28 0.33 9.46 7.19 New Pipe - 2022 to 2027 (5 Year) New Pipe - 2022 to 2027 (5 Year) New Pipe- 2022 to 2027 (5 Year) INewPIDe-2022to2027(5Year) I New Pipe - 2022 to 2027 (5 Year) New Pipe - 2022 to 2027 (5 Year) New Pipe - 2022 to 2027 (5 Year) New Pipe - 2022 to 2027 (5 Year) New Pipe - 2027 to 2032 (10 Year) New Pipe - 2022 to 2027 (5 Year) Page 4 of 4 Appendix B: Sewer Collection System Capacity Figures September 20, 2022 1 B-1 Pinal ounty j iRdarana 00, ..pop oN i 'v . I N� N • 10 I ! I � j W Avra Valley Rd I - 7�vi n, r. .M=. -Ab.a.� W Avra Valley Rd I .I arana t. I ,W a C6unty`��:10 ED Marana Town Limit • Manhole Sewer Line Sewer Interceptor Branch A Branch B Branch C Branch D Branch E Branch F Branch G Branch H Branch I Branch J =Branch K W Tangerine Rd SEWER INFRASTRUCTURE IMPROVEMENT PLAN (IIP) SEWER COLLECTION SYSTEM CAPACITY EXISTING CONDITIONS ...` N 0 1 � MILES i •` LJ �1 Fn MARANA AZ FIGURE A-1 WATER PATH: CAGABE%PWISE E%PORTITEMP\MARANA SEWERIIPWARANASEWERIIP V2.M%D-USER: GALVARAD - DATE: 3/1512022 Pinal ounty jWW Marana Rd ' 1 j �►t�`� 6 0l4z�. ..pop 10 1 I ! I � j W Avra Valley Rd I - 7�vi n, �� •fir -�-l�� W Avra Valley Rd I .I arana t. County`—l'" ED Marana Town Limit • Manhole Sewer Line Sewer Interceptor d/D > 0.70 Sewer Interceptor Branch A Branch B Branch C Branch D Branch E Branch F Branch G Branch H Branch I Branch J mBranch K W Tangerine Rd SEWER INFRASTRUCTURE IMPROVEMENT PLAN (IIP) SEWER COLLECTION SYSTEM CAPACITY 2022 TO 2027 (5 YEAR) WITHOUT IMPROVEMENTS 0 1 � MILES i •` LJ �1 MARANA AZ FIGURE A-2 WATER PATH: CAGABE%PWISE E%PORTITEMP\MARANA SEWERIIPWARANASEWERIIP V2.M%D-USER: GALVARAD - DATE: 3/1512022 Pinal ounty Inv- j Marana Rd A � r .o . 4� k- Nb oN I 'fir 10 1 I ! 1 I � j W Avra Valley Rd I PATH: CAGABE%PWISE E%PORTITEMP\MARANA SEWERIIPWARANASEWERIIP V2.M%D-USER: GALVARAD - DATE: 3/1512022 n, .I arana t. _I — I ,W a C6unty`��:10 �G, •1 �.._r Marana Town Limit • Manhole Sewer Line Sewer Interceptor d/D > 0.70 Sewer Interceptor Branch A Branch B Branch C Branch D Branch E Branch F Branch G Branch H Branch I New Branch I Branch J _ ' New Branch J W Tangerine Rd =Branch K mNew Branch L t r SEWER INFRASTRUCTURE IMPROVEMENT PLAN (IIP) SEWER COLLECTION SYSTEM CAPACITY _ _ ••�•,`• 2022 TO 2027 (5 YEAR) WITH IMPROVEMENTS a W Avra Valley Rd 0 0.5 1 MILES ■■ �• MARANA AZ FIGURE A-3 WATER Pinal ounty Inv- j Marana Rd j►�`'v Go.Q AL 10 1 I ! 1 I � j W Avra Valley Rd ------------------------- I M�1 n, W Avra Valley Rd I ■■ .I arana t. _I - I ,W a C6unty`��:10 ED Marana Town Limit • Manhole Sewer Line Sewer Interceptor d/D > 0.70 Sewer Interceptor Branch A Branch B Branch C Branch D Branch E Branch F Branch G Branch H Branch I New Branch I Branch J New Branch J W Tangerine Rd =Branch K mNew Branch L SEWER INFRASTRUCTURE IMPROVEMENT PLAN (IIP) SEWER COLLECTION SYSTEM CAPACITY 2027 TO 2032 (10 YEAR) WITHOUT IMPROVEMENTS 0 1 MILES j •` LJ �1 Fn : MARANA AZ FIGURE A-4 ►r WATER PATH: CAGABE%PWISE E%PORTITEMP\MARANA SEWERIIPWARANASEWERIIP V2.M%D-USER: GALVARAD - DATE: 3/1512022 Inv- j Marana Rd AN 10 1 I ! 1 I � j W Avra Valley Rd I M�, n, Pinal County _ .I �- I..\ — arana r. j I,W a J.41 Count-y:10 1.7� I••1 .i L. ED Marana Town Limit • Manhole Sewer Line Sewer Interceptor d/D > 0.70 Sewer Interceptor a Branch A New Branch A Branch B New Branch B Branch C Branch D • Branch E Branch F Branch G New Branch G Branch H Branch I _ New Branch I W Tangerine Rd Branch J New Branch J Branch K New Branch L Ilk SEWER INFRASTRUCTURE ` • d cry,? Rrve ,r�\•�� �. IMPROVEMENT PLAN (IIP) SEWER COLLECTION SYSTEM CAPACITY '�. 2027 TO 2032 (10 YEAR) �•,`. WITH IMPROVEMENTS a W Avra Valley Rd 0 0.5 1 MILES ■■ i1 I •` .......... MARANA AZ FIGURE A-5 r WATER PATH: CAGABE%PWISE E%PORTITEMP\MARANA SEWERIIPWARANASEWERIIP V2.M%D-USER: GALVARAD - DATE: 3/1512022 Appendix C: CIP Cost Tables September 20, 2022 1 B-1 Town of Marana Sewer IIP CIP Cost Summary Year ID Construction Direct Costs Costs Contingency 25% Sub -Total Mob/ Demob 1% General Conditions 8% Overhead 10% Contractor Costs Bonds + Insurance 2% Sub -Total profit 6% Sub -Total Sales Tax 8.1% Other Costs Sub -Total Design 8% Total 3 $1,451,000 $362,750 $1,813,750 $18,138 $145,100 $197,699 $43,494 $2,218,180 $133,091 $2,351,271 $190,453 $2,541,724 $203,338 $2,745,062 4 $1,620,810 $405,203 $2,026,013 $20,260 $162,081 $220,835 $48,584 $2,477,773 $148,666 $2,626,439 $212,742 $2,839,181 $227,134 $3,066,315 5 $897,000 $224,250 $1,121,250 $11,213 $89,700 $122,216 $26,888 $1,371,266 $82,276 $1,453,542 $117,737 $1,571,279 $125,702 $1,696,982 2022-2027 6 $1,604,000 $401,000 $2,005,000 $20,050 $160,400 $218,545 $48,080 $2,452,075 $147,124 $2,599,199 $210,535 $2,809,735 $224,779 $3,034,513 7 $1,782,000 $445,500 $2,227,500 $22,275 $178,200 $242,798 $53,415 $2,724,188 $163,451 $2,887,639 $233,899 $3,121,538 $249,723 $3,371,261 8 $20,700,000 $5,175,000 $25,875,000 $258,750 $2,070,000 $2,820,375 $620,483 $31,644,608 $1,898,676 $33,543,284 $2,717,006 $36,260,290 $2,900,823 $39,161,113 TOTAL (2022 - 2027) $53,075,246 9 $1,604,000 $401,000 $2,005,000 $20,050 $160,400 $218,545 $48,080 $2,452,075 $147,124 $2,599,199 $210,535 $2,809,735 $224,779 $3,034,513 2027-2032 10 $3,071,000 $767,750 $3,838,750 $38,388 $307,100 $418,424 $92,053 $4,694,714 $281,683 $4,976,397 $403,088 $5,379,486 $430,359 $5,809,844 11 $2,379,000 $594,750 $2,973,750 $29,738 $237,900 $324,139 $71,311 $3,636,837 $218,210 $3,855,047 $312,259 $4,167,306 $333,384 $4,500,690 TOTAL (2027 - 2032) $13,345,048 TOTAL $66,420,294 Gravity Pipe Improvement ID: 3 Design Parameters: Pipe Length 3600 FT Pipe Size 24 IN Assumptions: Fiscal Year: 22/23 23/24 24/25 25/26 26/27 27/28 28/29 29/30 30/31 31/32 CIP Budget: $1,451,000 Construction Costs Construction $1,451,000 Contingency @ 25% $362,750 Subtotal Construction Cost $1,813,750 Contractor Costs Mob/Demob (1%) $18,138 General Conditions (8%) $145,100 Overhead (10%) $197,699 Bonds + Insurance (2%) $43,494 Profit (6%) $133,091 Subtotal Contractor Cost $537,521 Other Costs Sales Tax (8.1%) $190,453 Engineering Design (8%) $203,338 Subtotal Other Costs $393,791 Total Project Cost $2,745,062 Construction Costs Unit Quantity Unit Cost Extended Cost Gravity Pipe LF 3600 $331 $1,192,320 Manholes EA 9 $28,750 $258,750 Sub -Total $1,451,000 Contingency (25%) $362,750 Subtotal Construction Cost $1,813,750 Total $1,451,000 Gravity Pipe Improvement ID: 4 Design Parameters: Pipe Length 5300 FT Pipe Size 27 IN Assumptions: 31% of construction costs are assigned to existing 15-inch line, and 69% of construction costs are assigned to the new 27-inch line Fiscal Year: 22/23 23/24 24/25 25/26 26/27 27/28 28/29 29/30 30/31 31/32 Total CIP Budget: $2,349,000 $2,349,000 Construction Costs Construction $1,620,810 (assume 69% of total construction costs) Contingency @ 25% $405,203 Subtotal Construction Cost $2,026,013 Contractor Costs Mob/Demob (1%) $20,260 General Conditions (8%) $162,081 Overhead (10%) $220,835 Bonds + Insurance (2%) $48,584 Profit (6%) $148,666 Subtotal Contractor Cost $600,427 Other Costs Sales Tax (8.1%) $212,742 Engineering Design (8%) $227,134 Subtotal Other Costs $439,876 Total Project Cost $3,066,315 Construction Costs Unit Quantity Unit Cost Extended Cost Gravity Pipe LF 5300 $373 $1,974,780 Manholes EA 13 $28,750 $373,750 Sub -Total $2,349,000 Contingency (25%) $587,250 Subtotal Construction Cost $2,936,250 Gravity Pipe Improvement ID: 5 Design Parameters: Pipe Length 2800 FT Pipe Size 27 IN Assumptions: Fiscal Year: 22/23 23/24 24/25 25/26 26/27 27/28 28/29 29/30 30/31 31/32 CIP Budget: $897,000 Construction Costs Construction $897,000 Contingency @ 25% $224,250 Subtotal Construction Cost $1,121,250 Contractor Costs Mob/Demob (1%) $11,213 General Conditions (8%) $89,700 Overhead (10%) $122,216 Bonds + Insurance (2%) $26,888 Profit (6%) $82,276 Subtotal Contractor Cost $332,292 Other Costs Sales Tax (8.1%) $117,737 Engineering Design (8%) $125,702 Subtotal Other Costs $243,439 Total Project Cost $1,696,982 Construction Costs Unit Quantity Unit Cost Extended Cost Gravity Pipe LF 2800 $248 $695,520 Manholes EA 7 $28,750 $201,250 Sub -Total $897,000 Contingency (25%) $224,250 Subtotal Construction Cost $1,121,250 Total $897,000 Gravity Pipe Improvement ID: 6 Design Parameters: Pipe Length 5300 FT Pipe Size 27 IN Assumptions: Fiscal Year: 22/23 23/24 24/25 25/26 26/27 27/28 28/29 29/30 30/31 31/32 CIP Budget: $1,604,000 Construction Costs Construction $1,604,000 Contingency @ 25% $401,000 Subtotal Construction Cost $2,005,000 Contractor Costs Mob/Demob (1%) $20,050 General Conditions (8%) $160,400 Overhead (10%) $218,545 Bonds + Insurance (2%) $48,080 Profit (6%) $147,124 Subtotal Contractor Cost $594,199 Other Costs Sales Tax (8.1%) $210,535 Engineering Design (8%) $224,779 Subtotal Other Costs $435,314 Total Project Cost $3,034,513 Construction Costs Unit Quantity Unit Cost Extended Cost Gravity Pipe LF 5300 $248 $1,316,520 Manholes EA 10 $28,750 $287,500 Sub -Total $1,604,000 Contingency (25%) $401,000 Subtotal Construction Cost $2,005,000 Total $1,604,000 Gravity Pipe Improvement ID: 7 Design Parameters: Pipe Length 5900 FT Pipe Size 27 IN Assumptions: Fiscal Year: 22/23 23/24 24/25 25/26 26/27 27/28 28/29 29/30 30/31 31/32 CIP Budget: $1,782,000 Construction Costs Construction $1,782,000 Contingency @ 25% $445,500 Subtotal Construction Cost $2,227,500 Contractor Costs Mob/Demob (1%) $22,275 General Conditions (8%) $178,200 Overhead (10%) $242,798 Bonds + Insurance (2%) $53,415 Profit (6%) $163,451 Subtotal Contractor Cost $660,139 Other Costs Sales Tax (8.1%) $233,899 Engineering Design (8%) $249,723 Subtotal Other Costs $483,622 Total Project Cost $3,371,261 Construction Costs Unit Quantity Unit Cost Extended Cost Gravity Pipe LF 5900 $248 $1,465,560 Manholes EA 11 $28,750 $316,250 Sub -Total $1,782,000 Contingency (25%) $445,500 Subtotal Construction Cost $2,227,500 Total $1,782,000 Marana WRF Expansion Improvement ID: 8 Design Parameters: Water Reclamation Facility 1.5 MGD Assumptions: Fiscal Year: 22/23 23/24 CIP Budget: Construction Costs Construction $20,700,000 Contingency @ 25% $5,175,000 Subtotal Construction Cost $25,875,000 Contractor Costs Mob/Demob (1%) $258,750 General Conditions (8%) $2,070,000 Overhead (10%) $2,820,375 Bonds + Insurance (2%) $620,483 Profit (6%) $1,898,676 Subtotal Contractor Cost $7,668,284 Other Costs Sales Tax (8.1%) $2,717,006 Engineering Design (8%) $2,900,823 Subtotal Other Costs $5,617,829 Total Project Cost $39,161,113 Construction Costs Treatment 24/25 25/26 26/27 27/28 28/29 29/30 30/31 31/32 Total $2,900,823 $9,000,000 $9,000,000 $20,900,823 Unit Quantity Unit Cost Extended Cost EA 1.5 $13,800,000 $20,700,000 Sub -Total $20,700,000 Contingency (25%) $5,175,000 Subtotal Construction Cost $25,875,000 Gravity Pipe Improvement ID: 9 Design Parameters: Pipe Length 5300 FT Pipe Size 27 IN Assumptions: Fiscal Year: 22/23 CIP Budget: Construction Costs Construction $1,604,000 Contingency @ 25% $401,000 Subtotal Construction Cost $2,005,000 Contractor Costs Mob/Demob (1%) $20,050 General Conditions (8%) $160,400 Overhead (10%) $218,545 Bonds + Insurance (2%) $48,080 Profit (6%) $147,124 Subtotal Contractor Cost $594,199 Other Costs Sales Tax (8.1%) $210,535 Engineering Design (8%) $224,779 Subtotal Other Costs $435,314 Total Project Cost $3,034,513 Construction Costs Gravity Pipe Manholes Sub -Total Contingency (25%) Subtotal Construction Cost 23/24 24/25 25/26 26/27 27/28 28/29 29/30 Unit Quantity Unit Cost Extended Cost LF 5300 $248 $1,316,520 EA 10 $28,750 $287,500 $1,604,000 $401,000 $2,005,000 30/31 31/32 Total $1,604,000 $1,604,000 Gravity Pipe Improvement ID: 10 Design Parameters: Pipe Length 11500 FT Pipe Size 15 IN Assumptions: Fiscal Year: 22/23 CIP Budget: Construction Costs Construction $3,071,000 Contingency @ 25% $767,750 Subtotal Construction Cost $3,838,750 Contractor Costs Mob/Demob (1%) $38,388 General Conditions (8%) $307,100 Overhead (10%) $418,424 Bonds + Insurance (2%) $92,053 Profit (6%) $281,683 Subtotal Contractor Cost $1,137,647 Other Costs Sales Tax (8.1%) $403,088 Engineering Design (8%) $430,359 Subtotal Other Costs $833,447 Total Project Cost $5,809,844 Construction Costs Gravity Pipe Manholes Sub -Total Contingency (25%) Subtotal Construction Cost 23/24 24/25 25/26 26/27 27/28 28/29 29/30 Unit Quantity Unit Cost Extended Cost LF 11500 $207 $2,380,500 EA 24 $28,750 $690,000 $3,071,000 $767,750 $3,838,750 30/31 31/32 Total $3,071,000 $3,071,000 Gravity Pipe, Lift Station, and Force Main Improvement ID: 11 Design Parameters: Pipe Length 6800 FT Pipe Size 18 IN Lift Station 210 gpm 0.3024 MGD Force Main 6800 FT Force Main Size 6 IN Assumptions: Fiscal Year: 22/23 23/24 24/25 25/26 26/27 27/28 CIP Budget: Construction Costs Construction $2,379,000 Contingency @ 25% $594,750 Subtotal Construction Cost $2,973,750 Contractor Costs Mob/Demob (1%) $29,738 General Conditions (8%) $237,900 Overhead (10%) $324,139 Bonds + Insurance (2%) $71,311 Profit (6%) $218,210 Subtotal Contractor Cost $881,297 Other Costs Sales Tax (8.1%) $312,259 Engineering Design (8%) $333,384 Subtotal Other Costs $645,643 Total Project Cost $4,500,690 Construction Costs Unit Quantity Unit Cost Extended Cost Gravity Pipe LF 6800 $248 $1,689,120 Manholes EA 24 $28,750 $690,000 Lift Station MGD 0.302 $690,000 $208,656 Force Main LF 6800 $55 $375,360 Sub -Total $2,379,000 Contingency (25%) $594,750 Subtotal Construction Cost $2,973,750 28/29 29/30 30/31 31/32 Total $2,379,000 $2,379,000 Town of Marana Impact Fee Study Water Facilities Infrastructure Improvements Plan Public Report FINAL As approved by the Marana Town Council, September 20, 2022 Prepared by Westland Resources, Inc. Engineering and Environmental Consultants Prepared by je� MARANA AZ CELEBRATING 40 YEARS 4001 E. Paradise Falls Drive 11555 West Civic Center Drive Tucson, Arizona 85712 Marana, Arizona 85653 r essa// F� WestLand Resources, Inc. Project No. 527.141 �� FICATf� 96 September 20, 2022 ROBERTJOSEPH ARCHER ti Town of Marana Mayor and Council Ed Honea — Mayor Jon Post — Vice Mayor Patti Comerford — Councilmember Herb Kai — Councilmember Roxanne Ziegler — Councilmember John Officer — Councilmember Jackie Craig — Councilmember Key Staff Terry Rozema, Town Manager Jing Luo, PhD, PE, Water Director Jane Fairall, Town Attorney Project Consultants WestLand Resources, Inc. 4001 E. Paradise Falls Drive Tucson, Arizona 85712 520-206-9585 Prime Consultant —All Tasks 2020 Water Impact Fee Infrastructure Improvement Plan Marana Water Department TABLE OF CONTENTS 1. INTRODUCTION...................................................................................................................................1 2. BENEFIT AREAS....................................................................................................................................1 3. LEVEL OF SERVICE.............................................................................................................................2 3.1. Level of Service for Existing Customers.......................................................................................2 3.2. Level of Service for Future Customers.........................................................................................4 4. 10-YEAR LAND USE ASSUMPTIONS............................................................................................. 4 5. EXISTING CAPACITY REQUIREMENTS..................................................................................... 6 5.1. Existing Demands............................................................................................................................ 7 5.2. Existing Storage Capacity................................................................................................................8 5.3. Existing Well Capacity..................................................................................................................... 9 5.4. Existing Booster Capacity.............................................................................................................10 6. PROJECTED CAPACITY REQUIREMENTS AND UTILIZATION OF EXISTING FACILITIES............................................................................................................................................10 6.1. Projected 10-year EDUs................................................................................................................11 6.2. Projected Demands........................................................................................................................11 6.3. Projected Storage Capacity............................................................................................................12 6.4. Projected Well Capacity.................................................................................................................13 6.5. Projected Booster Capacity...........................................................................................................14 6.6. Other Distribution System Deficiencies.....................................................................................15 6.7. Additional Renewable Resource Acquisitions............................................................................15 6.8. Summary of Projected Capacity Deficiencies.............................................................................16 7. CAPITAL INFRASTRUCTURE IMPROVEMENTS....................................................................16 7.1. Airport Connection to NWRRDS Pipeline................................................................................18 7.2. Partnered NWRRDS Project........................................................................................................18 7.3. Marana Booster at NWRRDS.......................................................................................................19 7.4. NWRRDS Blending Plan..............................................................................................................19 7.5. B-Zone Booster and Transmission Line.....................................................................................19 7.6. B-Zone Reservoir...........................................................................................................................19 7.7. C-Zone Booster..............................................................................................................................20 7.8. Tangerine 16" with Break Tanks..................................................................................................20 7.9. Tangerine 16" at Interstate-10......................................................................................................20 7.10. Marana Park Well ............................................................................................................................20 7.11. Marana Park Reservoir...................................................................................................................20 7.12. Sanders Road 24-inch Pipeline.....................................................................................................21 7.13. Twin Peaks Interconnect...............................................................................................................21 7.14. Picture Rocks Interconnect...........................................................................................................21 7.15. Honea East Well .............................................................................................................................21 7.16. Heritage Park Water Plant.............................................................................................................22 8. COST OF CAPITAL IMPROVEMENTS AND WATER RESOURCE ACQUISITIONS ............22 8.1. Infrastructure................................................................................................................................... 22 8.1.1. Planning................................................................................................................................22 8.1.2. Reimbursements..................................................................................................................22 8.1.3. Infrastructure.......................................................................................................................22 WestLand Resources, Inc. Q:\Jobs\500's\527.141\ENG\2020WtrInfrastructurePlan\20220824_Submittal\20220824_WaterInfrastuctureImprovementPlan.docx 2020 Water Impact Fee Infrastructure Improvement Plan Marana Water Department 8.2. Renewable Water Resource Acquisitions....................................................................................23 8.2.1. Integrated Water Resources Plan......................................................................................23 8.2.2. Water Resource Acquisition..............................................................................................24 8.3. Section 23 Fees................................................................................................................................26 9. REFERENCES.......................................................................................................................................26 TABLES Table 1. Fire Flow Requirements for Existing Customers..........................................................................3 Table 2. Projected Growth in Equivalent Dwelling Units by Development Area...................................4 Table 3. 10-year Projected Growth by Benefit Area....................................................................................6 Table 4. Projected Annual Growth for Each Benefit Area.........................................................................6 Table 5. Existing Equivalent Dwelling Units.................................................................................................7 Table6. Existing Demands..............................................................................................................................8 Table7. Existing Storage Capacity..................................................................................................................9 Table8. Existing Well Capacity....................................................................................................................... 9 Table 9. Existing Booster Capacity...............................................................................................................10 Table 10. Projected Equivalent Dwelling Units..........................................................................................11 Table11. Projected Demands........................................................................................................................12 Table 12. Projected Storage Capacity............................................................................................................13 Table 13. Projected Well Capacity.................................................................................................................14 Table 14. Projected Booster Capacity...........................................................................................................15 Table 15. Projected Additional Renewable Resources Required for 2032.................................................16 Table 16. Summary of Projected Infrastructure Deficiencies by Benefit Area.......................................16 Table 17. Proposed Capital Improvements.................................................................................................17 Table 18. Portion of Improvement Costs Assigned to Impact Fee.........................................................23 Table 19. Renewable Resource Requirements and Sources for Impact Fee Period..............................24 Table 20. Additional Section 23 Fees by Year.............................................................................................26 FIGURES (follow text) Figure 1. Marana Water Service Area Figure 2. Water Systems and Pressure Zones Figure 3. Water Benefit Areas Figure 4. Planned Development Areas Figure 5. Existing Infrastructure Figure 6. Capital Improvements APPENDICES Appendix A. Opinions of Probable Construction Cost and Site Plans Appendix B. Marana and Oro Valley Service Overlap Area WestLand Resources, Inc. iv Q:\Jobs\500's\527.141\ENG\2020WtrInfrastructurePlan\20220824_Submittal\20220824_WaterinfrastuctureImprovementPlan.docx 2020 Water Impact Fee Infrastructure Improvement Plan Marana Water Department I. INTRODUCTION The Town of Marana (Town) through the Marana Water Department (Marana Water) serves water to the area shown in blue and orange in Figure 1. Marana Water's service to the areas in orange is enabled by water wheeled through Tucson Water's water system, pursuant to an Intergovernmental Agreement (IGA) with the City of Tucson. In addition, the Town provides renewable water resources to reconcile water use in several areas served by Tucson Water through an IGA with City of Tucson (Figure 1). Currently, the Town has a designation of assured water supply (DAWS) from the Arizona Department of Water Resources (ADWR) which allows the Town to approve water supply for new development. To supply new development, Marana Water will expand its renewable water resources portfolio. The water system is categorized into seven independent water systems as shown in Figure 2. Each water system is further defined by water pressure zones (Figure 2) so that all customers receive water at a reasonable pressure (between approximately 40 and 85 pounds per square inch [psi]). There are seven individual water systems in the Marana Water Service Area: • North Marana Water System • Tangerine Business Park Water System • Hartman Vistas Water System • Picture Rocks Water System • Saguaro Bloom Water System • Marana Airport Water System • Palo Verde Water System The purpose of the Infrastructure Improvement Plan (IIP) is to determine the capital improvements and renewable water resource acquisitions required to meet the demands associated with the next 10 years of growth, and to estimate the costs of those improvements and acquisitions. 2. BENEFIT AREAS Benefit areas are areas that derive benefit from unused existing capacity or proposed capacity improvements to the water system including water rights acquisition. Figure 3 shows the approximate location of the five benefit areas defined in this IIP. New developments are subject to fees associated with the benefit area that is defined by the water system the new development is connecting to. WestLand Resources, Inc. Q:\Jobs\500's\527.141\ENG\2020WtrInfrastructurePlan\20220824_Submittal\20220824_WaterInfrastuctureImprovementPlan.docx 2020 Water Impact Fee Infrastructure Improvement Plan Marana Water Department Some improvements will benefit multiple areas. For example, the acquisition of renewable water resources benefits all eleven benefit areas. The eleven benefit areas are: • North Marana Benefit Area — developments connecting to the North Marana Water System or the Tangerine Business Park Water System. • Twin Peaks Benefit Area — developments connecting to the Hartman Vistas Water System, Picture Rocks Water System, or the Marana Airport Water System. • Saguaro Bloom Benefit Area — developments connecting to the Saguaro Bloom Water System. • Palo Verde Benefit Area — developments connecting to the Palo Verde Water System. • IGA Benefit Area — developments connecting to Tucson Water's water system through IGA with Marana, in one of two ways: 1) as a customer of Marana Water, in the Marana Water Wheeling Service Area or 2) as a customer of Tucson Water in the Tucson Non -Contracted Service Area. 3. LEVEL OF SERVICE This section describes the level of service of the water supply, storage, and distribution system for each of the benefit areas, and for existing and future customers. 3.1. LEVEL OF SERVICE FOR EXISTING CUSTOMERS The level of service for existing customers is generally: • Storage Capacity > 1.5 times the average day demand (ADD) plus fire flow storage requirement, where the fire flow storage requirement is equal to the fire flow rate requirement times the fire flow duration requirement. For example, if the fire flow rate requirement is 1,000 gallons per minute (gpm) and the fire flow duration requirement is 2 hours (120 minutes), then the fire flow storage requirement is 1,000 gpm times 120 minutes, or 120,000 gallons. • Well Capacity > peak day demand (PDD) with the largest well out of service, unless otherwise noted for specific zones. PDD = 2 times ADD. — The Hartman Vistas Water System is interconnected with the Oro Valley Water Utility, and since this interconnection can be used if a well is out of service, the well requirement for the Hartman Vista Water System is that the total well capacity must be greater than PDD. — The well capacity requirement for the Palo Verde and Tangerine Business Park Water Systems is that the well capacity be greater than PDD; there is no requirement for redundant well capacity currently. • Booster Capacity WestLand Resources, Inc. Q:\Jobs\500's\527.141\ENG\2020WtrInfrastructurePlan\20220824_Submittal\20220824_WaterInfrastuctureImprovementPlan.docx 2 2020 Water Impact Fee Infrastructure Improvement Plan Marana Water Department — For a pressure zone or zones without gravity storage, the booster requirement is the greater of PDD plus the fire flow rate requirement or peak hour demand (PHD), where PHD = 3.5 times ADD if ADD <= 1,000 gpm, and 3.0 times ADD if ADD > 1,000 gpm. — For pressure zones with gravity storage sufficient to meet the greater of PDD plus fire flow or PHD, the booster capacity requirement is PDD. Under existing conditions, only the Twin Peaks Y and Z pressure zones have sufficient gravity capacity to supply PDD plus fire flow. • Distribution System Capacity — During normal flow conditions, customers should receive water at between approximately 40 psi and 85 psi pressure. — The potable water distribution system must be capable of providing peak flow throughout the system while maintaining a minimum of 20 psi pressure throughout the system. Peak flow is the greater of PHD or PDD plus fire flow. If PDD plus fire flow is used, the system is modeled assuming an appropriate fire flow at all points in the system. The fire flow rate and duration requirements are set by the fire marshal and are based on the International Fire Code (IFC) for each new development. The fire flow for a specific pressure zone is equal to the greatest individual fire flow/duration requirement within the pressure zone. If multiple pressure zones share a resource, such as storage, then the fire flow requirement is based on the largest fire flow/duration requirement within the connected pressure zones. Table 1 shows the fire flow requirements for specific zones for the existing water system. Table I. Fire Flow Requirements for Existing Customers Water System Water Pressure Zone Fire Flow (gpm) Fire Flow Duration (hours) North Marana W+ 2,875 2 X 1,000 2 Tangerine Business Park Y 1,750 2 Picture Rocks CR 2,875 3 PR 700 2 Y 2,500 2 Z 1,000 2 Hartman Vistas Y 4,000 4 Y+ 1,875 4 Z 1,000 2 Saguaro Bloom X 2,000 2 Palo Verde PV Note 1 Note 1 Marana Airport X 2,750 2 Notes: 1. Palo Verde Water System does not have a fire flow requirement. WestLand Resources, Inc. Q:\Jobs\500's\527.141\ENG\2020WtrInfrastructurePlan\20220824_Submittal\20220824_WaterInfrastuctureImprovementPlan.docx 3 2020 Water Impact Fee Infrastructure Improvement Plan Marana Water Department 3.2. LEVEL OF SERVICE FOR FUTURE CUSTOMERS The level of service in terms of water system engineering design criteria will be the same as stated above for all water systems. The Town will not address the lack of redundant well capacity or change the level of service for the Palo Verde Water System, and there is no growth projected for this area. Proposed projects will provide redundant well capacity in the Tangerine Business Park Water System; however, the purpose of these projects was to provide sufficient well capacity for future growth. No changes to fire flow and duration requirements are anticipated over the next 10 years. 4. 10-YEAR LAND USE ASSUMPTIONS The Town provided land use assumptions for the 10-year study period including growth projections from 2023 through 2027 and from 2028 through 2032. The land use assumptions are in Equivalent Dwelling Units (EDU), where one EDU is equivalent to the water demand for one single-family residence. Table 2 shows each development with the appropriate assignment of EDU. Table 3 also shows which water system the development is assigned to. The location of each development is shown in Figure 4. Table 2. Projected Growth in Equivalent Dwelling Units by Development Area Development Area Water System Projected Growth, EDUs 2023-2027 2028-2032 2023-2032 Crossroads At Gladden Custom Homes North Marana 160 328 488 15 15 30 Cypress Gardens 100 117 217 Gladden Farms II 1,421 0 1,421 Heritage Park Shoppes 16 20 36 Mandarina (MU) 532 810 1,342 Mandarina South (MU) 40 150 190 Marana & I10 (Dahlstrom Commercial) 12 100 112 Marana Main St. (Commercial) 16 24 40 Marana Towne Center (MU) 40 80 120 Payson Farms (Remington Ranch) 457 0 457 Rancho Marana - West (MU) 150 4 154 Rancho Marana Town Center (Commercial) 0 20 20 Sanders Grove 100 600 700 Stonegate 300 700 1,000 Tangerine Commerce Park 60 60 120 Uptown 0 1 300 300 WestLand Resources, Inc. 4 Q:\Jobs\500's\527.141\ENG\2020WtrInfrastructurePlan\20220824_Submittal\20220824_WaterInfrastuctureImprovementPlan.docx 2020 Water Impact Fee Infrastructure Improvement Plan Marana Water Department Development Area Water System Y Projected Growth, EDUs 2023-2027 2028-2032 2023-2032 Vanderbilt Farms (Monarch) 500 1,000 1,500 Villages of Barnett 50 0 50 Villages of Tortolita 0 300 300 Breakers Rd Industrial Tangerine Business Park 160 0 160 Marana Technology Campus 36 0 36 Tangerine Business Park (Commercial) 20 8 28 Cortaro Ranch (Commercial) Hartman Vistas 36 0 36 De Anza 150 0 150 Joplin Estates (MU) 0 185 185 Linda Vista Village (MU) 500 193 693 Marana Spectrum/Center (MU) 160 188 348 Preserve at Twin Peaks (L.ennar) 50 0 50 Twin Peaks Crossing (Cardinal)(MU) 0 154 154 Twin Peaks Estates (Tivera) 82 0 82 Twin Peaks Rd (Future Rezones) 0 100 100 Twin Peaks Vista 58 0 58 Pima Farms North (Commercial) Picture Rocks 88 4 92 La Puerta del Norte East (Summerset) Saguaro Bloom 150 0 150 Saguaro Bloom 700 0 700 Airport Marana Airport 20 20 40 Orange Grove Industrial (Commercial) IGA 4 8 12 Riverside @ Silverbell (SE Ina/SB) (MU) 92 0 92 Silverbell Ridge (SW of Ina) 56 0 56 Sonoran Preserve at Bajada 14 0 14 Tang Thornydale SW Corner Rezone (MU) 145 40 185 Tangerine Thornydale (Villagio, HSL) (MU) 107 0 107 Tortolita 30 Rezone 40 0 40 Tortolita Vistas 40 0 40 Total 6,677 5,528 12,205 Table 3 shows the 10-year projected growth in EDUs for each of the benefit areas with projected growth. WestLand Resources, Inc. Q:\Jobs\500's\527.141\ENG\2020WtrInfrastructurePlan\20220824_Submittal\20220824_WaterInfrastuctureImprovementPlan.docx 2020 Water Impact Fee Infrastructure Improvement Plan Marana Water Department Table 3. 10-year Projected Growth by Benefit Area Benefit Area Projected Growth, EDUs 2023-2027 2028-2032 2023-2032 North Marana 4,185 4,636 8,821 Twin Peaks 1,144 844 1,988 Saguaro Bloom 850 0 850 Palo Verde 0 0 0 IGA 1 498 1 48 1 546 Total 1 6,677 1 5,528 1 12,205 Table 4 shows the projected annual growth in EDUs for each benefit area with projected growth. The annual growth is based on the number of existing EDUs and 5- and 10-year projected EDUs provided by the Town. The growth rate for intermediate years was estimated using a constant growth rate for each 5-year period and adjusted so each year has a whole number of EDUs. Table 4. Projected Annual Growth for Each Benefit Area Benefit Area 2023 2024 202S 2026 2027 2028 2029 2030 2031 2032 Total North Marana 837 837 837 837 837 927 927 927 927 928 8,821 Twin Peaks 228 229 229 229 229 168 169 169 169 169 1,988 Saguaro Bloom 170 170 170 170 170 0 0 0 0 0 850 Palo Verde 0 0 0 0 0 0 0 0 0 0 0 IGA 99 99 100 100 100 9 9 10 10 10 546 Total 1,334 1,335 1,336 1,336 1,336 1,104 11,105 11,106 1,106 1,107 12,205 S. EXISTING CAPACITY REQUIREMENTS In this section, the storage, well, and booster capacities are compared to existing demands. The existing water infrastructure is shown in Figure 5. The following assumptions are used to calculate the flows generated from each EDU. • Each EDU represents 2.7 persons per dwelling unit (ppdu) of equivalent population. • The average demand per person or equivalent person is 100 gallons per capita per day (gpcd). • The ADD per EDU is 2.7 ppdu times 100 gpcd or 270 gpd/EDU. • The PDD is 2 times ADD or 540 gpd/EDU. • The PHD is 3.5 times ADD or 945 gpd/EDU if ADD is <= 1,000 gpd, and 3.0 times ADD or 810 gpd/EDU if ADD > 1,000 gpd. For some areas, the PHD is based on an instantaneous demand requirement for the pressure zone. Unless otherwise noted, the system requirements are: • Storage capacity > 1.5 times ADD plus fire flow storage. WestLand Resources, Inc. Q:\Jobs\500's\527.141\ENG\2020WtrInfrastructurePlan\20220824_Submittal\20220824_WaterInfrastuctureImprovementPlan.docx 6 2020 Water Impact Fee Infrastructure Improvement Plan Marana Water Department • Well capacity > PDD with the largest well out of service or PDD if interconnected with another water system. • Booster capacity (without gravity storage) greater of PDD plus fire flow or PHD. Booster capacity (with gravity storage) is equal to PDD. • During normal flow conditions, customers should receive water at between approximately 40 psi and 85 psi pressure. • The distribution system must be capable of providing peak flow while maintaining 20 psi throughout the system. Table 5 shows the existing EDUs in each Water System and pressure zone. The "existing" EDU value is based on the Town's estimate of existing plus projected growth through November 2022. Table S. Existing Equivalent Dwelling Units Water System Water Pressure Zone Existing EDUs North Marana W+ 5,259 X 195 Tangerine Business Park Y 14 Picture Rocks CR 2,322 PR 233 Y 114 Z 86 Hartman Vistas A 62 A+ 91 Y 1,158 Y+ 687 Z 359 Saguaro Bloom X 1,699 Palo Verde PV 60 Marana Airport X 40 Total 12,383 5.1. EXISTING DEMANDS Based on historical flow data, the average demand for the Marana water system is approximately 270 gpd per EDU. Table 6 shows the existing ADD, PDD, and PHD for the system broken down by Water System and pressure zone. WestLand Resources, Inc. Q:\Jobs\500's\527.141\ENG\2020WtrInfrastructurePlan\20220824_Submittal\20220824_WaterInfrastuctureImprovementPlan.docx 7 2020 Water Impact Fee Infrastructure Improvement Plan Marana Water Department Table 6. Existing Demands Water System Water Pressure Zone Average Day Demand (gpd) Peak Day Demand (gpm) Peak Hour Demand (gpm) North Marana W+ 1,419,930 1,972 3,451 X 52,650 73 128 Tangerine Business Park Y 3,780 5 9 Picture Rocks CR 1 626,940 871 1,524 PR 62,910 87 153 Y 30,780 43 75 Z 23,220 32 56 Hartman Vistas Y 1,158 434 760 Y+ 687 258 451 Z 359 135 236 A 16,740 23 41 A+ 24,570 34 60 Saguaro Bloom X 458,730 637 1,115 Palo Verde PV 16,200 23 39 Marana Airport X 11,880 17 29 Total 3,343,410 4,644 8,126 5.2. EXISTING STORAGE CAPACITY The required minimum storage reservoir requirement is equal to 1.5 times ADD plus the fire flow/duration requirement. The fire flow requirement is equal to flowrate times duration which results in a volume of water. For example, 1,000 gpm for 2 hours (120 minutes) is 120,000 gallons. The Palo Verde Water System does not have a fire flow requirement. If storage is shared by two or more zones, the highest fire flow requirement of the zones is used to calculate the storage requirement. Table 7 shows the fire flow requirement (flow and duration), the current storage reservoir requirement, the existing reservoir capacity, and the amount of excess capacity for each pressure zone. Excess storage in a red font and parenthesis indicates a negative value, which means a deficiency in storage. WestLand Resources, Inc. Q:\Jobs\500's\527.141\ENG\2020WtrInfrastructurePlan\20220824_Submittal\20220824_WaterInfrastuctureImprovementPlan.docx 8 2020 Water Impact Fee Infrastructure Improvement Plan Marana Water Department Table 7. Existing Storage Capacity Potable Fire Flow Total Total Excess Water System Zone Storage Storage Storage Available Storage Required Required Required Storage (gallons) (gallons) (gallons) (gallons) (gallons) North Marana W+, X 2,208,870 345,000 2,553,870 2,084,000 (469,870) Tangerine Business Y 5,670 210,000 215,670 500,000 284,330 Park CR, PR, Z 1,069,605 517,500 1,587,105 1,250,000 (337,105) Picture Rocks Y 46,170 300,000 346,170 1,000,000 653,830 Hartman Vistas All 954,585 960,000 1,914,585 2,385,000 470,415 Saguaro Bloom X 688,095 240,000 928,095 1,928,000 999,905 Palo Verde PV 24,300 Note 1 24,300 45,000 20,700 Marana Airport X 17,820 330,000 1 347,820 500,000 152,180 Notes: 1. Palo Verde Water System does not have a fire flow requirement. All the zones have excess storage capacity except for the Picture Rocks CR and PR -Zones, which have a deficiency of 337,105 gallons, and North Marana Water System, which has a deficiency of 469,870 gallons. 5.3. EXISTING WELL CAPACITY The minimum required well capacity is equal to PDD with the largest well out of service; however, the Tangerine Business Park Water System and the Palo Verde Water System do not require redundant well capacity and each is served by a single well. Table 8 shows the current well capacity requirement, the existing well capacity, and the amount of excess capacity for each pressure zone. Table 8. Existing Well Capacity Required Total Well Largest Net Well Excess Well Water System Capacity Capacity Well Capacity Capacity (gpm) (gpm) (gpm) (gpm) (gpm) North Marana 2,045 2,721 1,009 11712 (333) Tangerine Business Park 5 55 Note 1 55 50 Picture Rocks 1,033 2,411 1,374 1,037 4 Hartman Vistas 884 2,590 986 1,604 720 Saguaro Bloom 637 1,522 1,100 422 (215) Palo Verde 23 273 Note 2 273 250 Marana Airport 17 4,034 2,034 2,000 1,983 Notes: 1. Under current Marana Water policy, the Tangerine Business Park Water System does not require a redundant well. 2. Under current Marana Water policy, the Palo Verde Water System does not require a redundant well. WestLand Resources, Inc. Q:\Jobs\500's\527.141\ENG\2020WtrInfrastructurePlan\20220824_Submittal\20220824_WaterInfrastuctureImprovementPlan.docx 9 2020 Water Impact Fee Infrastructure Improvement Plan Marana Water Department The North Marana Water System has a source deficiency of 333 gpm, and the Saguaro Bloom Water System has a source deficiency of 215 gpm. 5.4. EXISTING BOOSTER CAPACITY The booster capacity requirement is the greater of PHD or PDD plus fire flow. If the pressure zone is served by gravity storage (Twin Peaks Y and Z Zones), then the booster capacity requirement is the combined PDD of the zones downstream of the current zone. Table 9 shows the required booster capacity, the existing booster capacity, and the excess booster capacity for each zone. There is currently one booster deficiency of 446 gpm in the Picture Rocks CR Zone. Table 9. Existing Booster Capacity Water System Zone Required Booster Capacity (gpm) Existing Booster Capacity (gpm) Excess Booster Capacity (gpm) North Marana W+ 4,847 5,520 673 X 1,073 1,300 227 Tangerine Business Park y 1,755 1,850 95 Picture Rocks CR 3,746 3,300 (446) PR 787 1,900 1,113 Y 2,543 3,100 557 Z 1,032 1,320 288 Hartman Vistas Y 434 2,100 1,666 Y+ 258 2,100 1,842 Z 1,135 2,500 1,365 A 1,557 1,850 293 A+ Saguaro Bloom X 2,637 4,430 1,793 Palo Verde X 145 308 163 Airport X 2,767 3,205 438 6. PROJECTED CAPACITY REQUIREMENTS AND UTILIZATION OF EXISTING FACILITIES This section includes the projected capacity requirements and utilization of existing infrastructure over the 10-year study period ending in 2032. Water system infrastructure requirements are based on the level of service noted in Section 3.2. Westland Resources, Inc. Q:\Jobs\500's\527.141\ENG\2020WtrInfrastructurePlan\20220824_Submittal\20220824_WaterInfrastuctureImprovementPlan.docx 10 2020 Water Impact Fee Infrastructure Improvement Plan Marana Water Department 6.1. PROJECTED 10-YEAR EDUs The future land use from Table 2 in Section 4 was combined with the Water Systems and water pressure zones from Figure 2. The results were added to the existing EDUs from Table 5 in Section 5 to get the total EDUs by water pressure zone. The results are presented in Table 10. Table 10. Projected Equivalent Dwelling Units Water System Water Pressure Zone Existing EDUs Projected Growth, EDU' Existing and Projected 10- Year EDUs 2023-2027 2028-2032 North Marana W+ 5,259 3,037 2,908 11,204 X-north 195 195 X-south 932 1,720 2,652 Tangerine Business Park Y 14 20 8 42 X 0 196 196 Picture Rocks CR 2,322 88 4 2,414 Z 86 86 PR 233 233 Y 114 114 Hartman Vistas Y 1,158 535 518 2,211 Y+ 687 156 843 Z 359 155 48 562 A 62 58 10 130 A+ 91 50 141 B 82 25 107 C 219 219 Saguaro Bloom X 1,699 850 2,549 Palo Verde PV 60 0 60 Marana Airport X 44 20 20 84 Total 12,383 6,1791 5,4801 24,042 Does not include IGA projection growth. 6.2. PROJECTED DEMANDS Table 11 shows the projected demands for each water pressure zone. Projected demands are ADD, PDD, and PHD. WestLand Resources, Inc. Q:\Jobs\500's\527.141\ENG\2020WtrInfrastructurePlan\20220824_Submittal\20220824_WaterInfrastuctureImprovementPlan.docx 2020 Water Impact Fee Infrastructure Improvement Plan Marana Water Department Table 11. Projected Demands Water System Water Pressure Zone Average Day Demand (gpd) Peak Day Demand (gpm) Peak Hour Demand (gpm) North Marana W+ 3,025,080 4,202 6,302 X-north 52,650 73 128 X-south 716,040 995 1,740 Tangerine Business Park Y 11,340 90 28 X 52,920 74 129 Picture Rocks CR 651,780 905 1,584 Z 23,220 32 56 PR 62,910 87 153 Y 30,780 43 75 Hartman Vistas Y 596,970 829 1,451 Y+ 227,610 316 553 Z 151,740 211 369 A 35,100 49 85 A+ 38,070 53 93 B 28,890 40 70 C 59,130 82 144 Saguaro Bloom X 688,230 956 1,673 Palo Verde PV 16,200 23 39 Marana Airport X 22,680 32 55 Total 6,491,340 9,090 14,727 6.3. PROJECTED STORAGE CAPACITY The minimum storage reservoir requirement is equal to 1.5 times ADD plus fire flow. There are no plans to add fire flow requirements to the Palo Verde Water System, therefore its reservoir requirement is 1.5 times ADD. If storage is for more than one zone, the highest fire flow requirement of the multiple zones is used to calculate the storage requirement. Table 12 shows the projected storage reservoir requirement, the existing reservoir capacity, and the amount of excess capacity for each pressure zone. Excess storage in a red font and parenthesis indicates a negative value, which means a deficiency in storage. It is projected that the North Marana Water System will have a 3,951,655-gallon storage deficiency, the Picture Rocks Water System will have a 374,365-gallon storage deficiency and the Hartman Vistas Water System will have a 281,265-gallon storage deficiency. Westland Resources, Inc. 12 Q:\Jobs\500's\527.141\ENG\2020WtrInfrastructurePlan\20220824_Submittal\20220824_WaterInfrastuctureImprovementPlan.docx 2020 Water Impact Fee Infrastructure Improvement Plan Marana Water Department Table 12. Projected Storage Capacity Water System Water Pressure Zone Required Storage (gallons) Existing Storage (gallons) Excess Storage (gallons) North Marana W+, X 5,690,655 2,084,000 (3,951,655) Tangerine Business Park X, Y 96,390 500,000 193,610 Picture Rocks CR, PR, Z 1,106,865 1,250,000 (374,365) Y 46,170 1,000,000 653,830 Hartman Vistas All 1,706,265 2,385,000 (281,265) Saguaro Bloom X 1,032,345 1,928,000 655,655 Palo Verde PV 24,300 45,000 20,700 Marana Airport X 34,020 500,000 135,980 6.4. PROJECTED WELL CAPACITY The minimum required well capacity is equal to PDD with the largest well out of service; however, the Tangerine Water System and the Palo Verde Water System will not require redundant well capacity by 2032. Table 13 shows the projected well capacity requirement, the existing well capacity, and the projected excess capacity for each pressure zone. Excess well capacity in a red font and parenthesis indicates a negative value, which means a deficiency in well capacity. The North Marana Water System will have a 3,557-gpm deficiency, the Tangerine Business Park Water System will have a 35-gpm deficiency, the Picture Rocks Water System will have a 31-gpm deficiency, and the Saguaro Bloom Water System will have a 533-gpm deficiency. WestLand Resources, Inc. Q:\Jobs\500's\527.141\ENG\2020WtrInfrastructurePlan\20220824_Submittal\20220824_WaterInfrastuctureImprovementPlan.docx 13 2020 Water Impact Fee Infrastructure Improvement Plan Marana Water Department Table 13. Projected Well Capacity Water System Water Pressure Zone Required Well Capacity (gpm) Total Existing Well Capacity (gpm) Largest Well (gpm) Net Well Capacity (gpm) Excess Well Capacity (gpm) North Marana W+ 4,202 2,721 1,009 1,712 (3,557) X-north 73 X-south 995 Tangerine Business Park Y, X 90 55 Note 1 55 (35) Picture Rocks CR 905 2,411 1,374 1,037 (31) Z 32 PR 87 Y 43 Hartman Vistas Y 829 2,590 986 1,604 357 Y+ 316 Z 211 A 49 A+ 53 B 40 C 82 Saguaro Bloom X 956 1,522 1,100 422 (534) Palo Verde PV 23 273 Note 2 273 251 Marana Airport X 32 4,034 2,034 2,000 1,969 Notes 1. Tangerine Business Park Water System does not have redundant well requirement. 2. Palo Verde Water System does not have redundant well requirement. 6.5. PROJECTED BOOSTER CAPACITY The booster capacity requirement is the greater of PHD or PDD plus fire flow. If the pressure zone is served by gravity storage (Hartman Vistas Y, Y+, and Z-Zones), then the booster capacity requirement is the combined PDD of the zones downstream of the zone being evaluated. Table 14 shows the projected required booster capacity, the existing booster capacity, and the excess booster capacity for each zone. Excess booster capacity in a red font and parenthesis indicates a negative value, which means a deficiency in well capacity. WestLand Resources, Inc. Q:\Jobs\500's\527.141\ENG\2020WtrInfrastructurePlan\20220824_Submittal\20220824_WaterInfrastuctureImprovementPlan.docx 14 2020 Water Impact Fee Infrastructure Improvement Plan Marana Water Department Table 14. Projected Booster Capacity Water System Water Pressure Zone Fire Flow (gpm) Required Booster Capacity (gpm) Existing Booster Capacity (gpm) Excess Booster Capacity (gpm) North Marana W+ 2875 7,077 5,520 (1,557) X-north 1,000 1,073 1,300 227 X-south 2,000 2,995 3,000 5 Tangerine Business Park Y, X 1,750 1,914 1,850 (64) Picture Rocks CR 2,875 3,813 3,300 (513) Z 1,000 1,032 1,320 288 PR 700 830 1,900 1,070 Y 2,500 2,543 3,100 557 Hartman Vistas Y 4,000 829 2,100 1,271 Y+ 1,500 316 2,100 1,784 Z 1,000 2,103 2,500 397 A 1,500 1,892 1,580 (42) A+ 1,500 B 1,000 1,122 0 (1,122) C 1,000 1,082 0 (1,082) Saguaro Bloom X 2,000 2,956 4,780 1,474 Palo Verde PV N/A 145 308 163 Marana Airport X 2,750 2,782 3,205 424 It is projected that four water systems will have booster deficiencies: North Marana Water System, Tangerine Business Park Water System, Picture Rocks Water System, and Hartman Vistas Water System. 6.6. OTHER DISTRIBUTION SYSTEM DEFICIENCIES In addition to having adequate storage capacity, well capacity, and booster capacity, the distribution system must have adequate capacity to move water to the projected development areas while maintaining a minimum of 20 psi throughout the system. There are projected distribution system deficiencies in the North Marana Water System and the Hartman Vistas Water System. It is projected that an increased pipe capacity is required to connect the southern and northern portions of the North Marana Water System along Sanders Road. Developments in the Hartman Vistas will require a distribution pipe from the proposed B-Zone booster. 6.7. ADDITIONAL RENEWABLE RESOURCE ACQUISITIONS An average of 270 gpd (approximately 0.3 acre-feet/year) of renewable water resources is required for each EDU. Table 15 shows the projected additional renewable water resource required for each WestLand Resources, Inc. 15 Q:\Jobs\500's\527.141\ENG\2020WtrInfrastructurePlan\20220824_Submittal\20220824_WaterInfrastuctureImprovementPlan.docx 2020 Water Impact Fee Infrastructure Improvement Plan Marana Water Department benefit area. Projected growth over the next 10 years will require approximately 3,662 acre-feet (per year) of additional renewable water resource acquisitions. Table I S. Projected Additional Renewable Resources Required for 2032 Benefit Area Projected Growth (EDU) Renewable Resource (acre-feet) North Marana 8,821 2,646 Twin Peaks 1,988 596 Saguaro Bloom 850 255 Palo Verde 0 0 IGA 546 164 Total 12,205 3,662 6.8. SUMMARY OF PROJECTED CAPACITY DEFICIENCIES Table 16 contains a summary of the projected infrastructure deficiencies in storage, well, and booster capacity for each benefit area. In addition to the infrastructure deficiencies shown in Table 16, 3,662 acre-feet of renewable water resources will be required to offset the ADWR safe yield requirements. Table 16. Summary of Projected Infrastructure Deficiencies by Benefit Area Storage Well Booster Benefit Area Capacity Capacity Capacity Other Deficiency Deficiency Deficiency Deficiencies (gallons) (gpm) (gpm) North Marana 3,951,655 3,592 1,621 Note 1 Twin Peaks 655,630 0 2,759 Note 2 Saguaro Bloom 534 1 North Marana Benefit Area will not meet the 20-psi pressure requirement for all flow conditions. 2 Twin Peaks Benefit Area will require new delivery pipeline from proposed B-Zone Booster. 7. CAPITAL INFRASTRUCTURE IMPROVEMENTS Figure 7 shows the location of the 15 capital projects that are intended to make up the projected deficiencies discussed in Sections 7.3 through 7.6. The capital projects make up projected deficiencies in two of the defined benefit areas. Projects that are associated with water resources acquisition are presented in Section 9.2. Table 17 shows each project, the benefit area or areas benefiting from each project, and the projected EDUs affected by the project. See Section 3 for the level of service associated with each benefit area. WestLand Resources, Inc. 16 Q:\Jobs\500's\527.141\ENG\2020WtrInfrastructurePlan\20220824_Submittal\20220824_WaterInfrastuctureImprovementPlan.docx 2020 Water Impact Fee Infrastructure Improvement Plan Marana Water Department Table 17. Proposed Capital Improvements Capital Improvement Project Benefit Area Affected Total Benefit EDUs (d i s o Z v, a E c o L. > o a Q Airport Connection to NWRRDS Pipeline ✓ ✓ 10,809 Partnered NWRRDS Project ✓ ✓ 10,809 Marana Booster at NWRRDS ✓ ✓ 10,809 NWRRDS Blending Plan ✓ ✓ 10,809 B-Zone Booster and Transmission Line ✓ ✓ 10,809 B-Zone Reservoir ✓ ✓ 10,809 C-Zone Booster ✓ 1,988 Tangerine 16" with Break Tanks ✓ 8,821 Tangerine 16" at I-10 ✓ 8,821 Marana Park Well ✓ 8,821 Marana Park Reservoir ✓ 8,821 Sanders Road 24" Pipeline ✓ 8,821 Twin Peaks Interconnect ✓ 1,988 Picture Rocks Interconnect ✓ 1,988 Honea East Improvements ✓ 8,821 Heritage Park Water Plant ✓ 8,821 Each of the projects is described in more detail in the following subsections. Seven of the projects create a loop that can move water from the Airport Water System to the Hartman Vistas Water System, the Tangerine Business Park Water System, and the North Marana Water System. • Airport Connection to NWRRDS Pipeline • Partnered NWRRDS Project • Marana Booster at NWRRDS • NWRRDS Blending Plan • B-Zone Booster and Transmission Line • B-Zone Reservoir • Tangerine 16" with Break Tanks • Tangerine 16" at I-10 WestLand Resources, Inc. Q:\Jobs\500's\527.141\ENG\2020WtrInfrastructurePlan\20220824_Submittal\20220824_WaterInfrastuctureImprovementPlan.docx 17 2020 Water Impact Fee Infrastructure Improvement Plan Marana Water Department The purpose of the loop is to address source (well) and storage deficiencies in the North Marana Benefit Area and the Twin Peaks Benefit area. Portions of the loop also address booster and delivery deficiencies in the Twin Peaks Benefit Area. The Twin Peaks Interconnect and the Picture Rocks Interconnect combine to connect the existing Hartman Vistas Water System and the Picture Rocks Water System. The purpose of the Picture Rocks Interconnect is to adjust the zone boundaries, so the water pressure zones in the Picture Rocks Water System match the water pressure zones in the Hartman Vistas Water System. The purpose of the Twin Peaks Interconnect and the Picture Rocks Interconnect is to address the storage, well, and booster deficiencies in the Twin Peaks Benefit Area. 7.1. AIRPORT CONNECTION TO NWRRDS PIPELINE The purpose of the Airport Connection to the Northwest Recharge, Recovery, and Delivery System (NWRRDS) Pipeline is to supply an average of 1,500 gpm from the Airport wells into the Partnered NWRRDS Project. The project includes a 1,500-gpm booster station, suction, and pressure side hydropneumatic tanks, upgrade of the existing booster station, upgrade of the existing southeast well, site piping, and controls. As part of the loop connecting the Airport Water System to the North Marana Water System, this project benefits the North Marana and Twin Peaks Benefit Areas by addressing projected storage and well capacity deficiencies. Fifty percent of the cost of the Airport Connection to the NWRRDS Pipeline will be assigned to the IIP. 7.2. PARTNERED NWRRDS PROJECT The Partnered NWRRDS Project is designed to take recovered recharged water from the area around the airport and deliver it to the three partners. The partners are Marana, Oro Valley, and Metro Water. The project includes a delivery pipeline and reservoir. Marana is responsible for 23 percent of the project cost, with 50 percent of Marana's portion being assigned to new development in this IIP. The project includes a pipeline and one -million -gallon storage reservoir. Marana Water's portion of the storage reservoir is 230,000 gallons. As part of the loop connecting the Airport Water System to the North Marana Water System, this project benefits the North Marana and Twin Peaks Benefit Areas by addressing projected storage and well capacity deficiencies. WestLand Resources, Inc. 18 Q:\Jobs\500's\527.141\ENG\2020WtrInfrastructurePlan\20220824_Submittal\20220824_WaterInfrastuctureImprovementPlan.docx 2020 Water Impact Fee Infrastructure Improvement Plan Marana Water Department 7.3. MARANA BOOSTER AT NWRRDS The Marana Booster at NWRRDS will transfer water from the Partnered NWRRDS Project reservoir to Marana Water's Hartman Vista Water System. The Marana Booster at NWRRDS consists of a 1,500-gpm booster station and water main to connect to the water system. As part of the loop connecting the Airport Water System to the North Marana Water System, this project benefits the North Marana and Twin Peaks Benefit Areas by addressing projected storage and well capacity deficiencies. Fifty percent of the cost of the Marana Booster at NWRRDS will be assigned to the IIP. 7.4. NWRRDS BLENDING PLAN A blending plan, with an estimated cost of $120,000, is required to ensure water quality is not degraded after connection of the NWRRDS source. Fifty percent of the cost of the NWRRDS will be assigned to the IIP. 7.5. B-ZONE BOOSTER AND TRANSMISSION LINE The purpose of the B-Zone Booster and Transmission Line is to move water from the Blue Bonnet Reservoir north to the proposed B-Zone reservoir near Tangerine Road. B-Zone Booster and Transmission Line consists of a 3,000-gpm booster station and approximately 9,000 feet of 16-inch diameter water main. As part of the loop connecting the Airport Water System to the North Marana Water System, this project benefits the North Marana and Twin Peaks Benefit Areas by addressing projected storage and well capacity deficiencies. This project also addresses projected booster and distribution deficiencies in the Twin Peaks Benefit Area. 7.6. B-ZONE RESERVOIR The 210,000-gallon B-Zone Reservoir serves as part of the loop supplying the North Marana and Tangerine Business Park Systems, gravity storage for the B-Zone of the Hartman Vistas Water System, and as a forebay for the C-Zone Booster. As part of the loop connecting the Airport Water System to the North Marana Water System, this project benefits the North Marana and Twin Peaks Benefit Areas by addressing projected storage and well capacity deficiencies. WestLand Resources, Inc. 19 Q:\Jobs\500's\527.141\ENG\2020WtrInfrastructurePlan\20220824_Submittal\20220824_WaterInfrastuctureImprovementPlan.docx 2020 Water Impact Fee Infrastructure Improvement Plan Marana Water Department 7.7. C-ZONE BOOSTER The 1,200-gpm C-Zone Booster supports the Hartman Vistas Water System and consists of booster pumps and supporting equipment. This project addresses a projected booster deficiency in the Twin Peaks Benefit Area. 7.8. TANGERINE 1 G" WITH BREAK TANKS The Tangerine 16-inch with Break Tanks project consists of 16,750 feet of 16-inch diameter water main and two 50,000-gallon water storage reservoirs or break tanks. The Tangerine 16-inch with Break Tanks is part of the loop from the Airport Water System to the North Marana Water System. As part of the loop connecting the Airport Water System to the North Marana Water System, this project benefits the North Marana Benefit Area by addressing projected well capacity deficiencies and storage deficiencies. 7.9. TANGERINE 16" AT INTERSTATE-10 The Tangerine 16-inch at Interstate 10 project consists of 6,547 feet of 16-inch water main and is part of the loop connecting the Airport Water System to the North Marana Water System. As part of the loop connecting the Airport Water System to the North Marana Water System, this project benefits the North Marana Benefit Area by addressing projected well capacity and storage deficiencies. 7.10. MARANA PARK WELL The proposed Marana Park 800-gpm well will provide groundwater to the North Marana Service Area and Tangerine Business Park Water System. This project will benefit the North Marana Benefit Area by addressing projected well capacity deficiencies. 7.11. MARANA PARK RESERVOIR The proposed Marana Park 1.5-million-gallon storage reservoir will address a portion of the storage deficiency in the North Marana Service Area. This project will benefit the North Marana Benefit Area by addressing projected storage deficiencies. Water rates will pay for $1,000,000 of the cost of the proposed Marana Park Reservoir. WestLand Resources, Inc. 20 Q:\Jobs\500's\527.141\ENG\2020WtrInfrastructurePlan\20220824_Submittal\20220824_WaterInfrastuctureImprovementPlan.docx 2020 Water Impact Fee Infrastructure Improvement Plan Marana Water Department 7.12. SANDERS ROAD 24-INCH PIPELINE The proposed Sanders Road 24-inch Pipeline will alleviate projected distribution system deficiencies in the North Marana Water System. The improvement will allow the movement of water from source wells and storage reservoirs to and from new development areas during peak use periods, while maintaining a minimum 20-psi pressure throughout the system. This project will benefit the North Marana Benefit Area by addressing projected distribution system deficiencies. 7.13. TWIN PEAKS INTERCONNECT The proposed 24-inch Twin Peaks/Continental Reserve Interconnect will connect the Hartman Vistas and Picture Rocks Service Areas. The design has been completed and only the construction costs are included. This project addresses projected storage and well capacity deficiencies in the Twin Peaks Benefit Area. 7.14. PICTURE ROCKS INTERCONNECT The proposed Twin Peaks/Continental Reserve Interconnect will require a change in the pressure zone boundary between the Picture Rocks CR and PR pressure zones as the majority of the CR pressure zone becomes a Y pressure zone. With the connection of the two areas, the water pressure of about 222 existing customers would fall below the 40-psi minimum pressure during normal flow conditions. The proposed Picture Rocks Interconnect is required to maintain the existing level of service for existing customers that would be affected by the proposed Twin Peaks/Continental Reserve Interconnect. This project addresses storage and projected well capacity deficiencies in the Twin Peaks Benefit Area. 7.1 S. HONEA EAST WELL The Honea East Well project consists of reequipping the well with a new pump and motor to increase the well capacity by 250 gpm. This project will benefit the North Marana Benefit Area by addressing projected well capacity deficiencies. WestLand Resources, Inc. 21 Q:\Jobs\500's\527.141\ENG\2020WtrInfrastructurePlan\20220824_Submittal\20220824_WaterInfrastuctureImprovementPlan.docx 2020 Water Impact Fee Infrastructure Improvement Plan Marana Water Department 7.16. HERITAGE PARK WATER PLANT The Heritage Park Water Plan Project consists of 1,800,000-gallon storage reservoir, a 1,000-gpm well, and a 1,200-gpm booster. The project will benefit the North Marana Benefit Area by addressing projected storage, well, and booster deficiencies. 8. COST OF CAPITAL IMPROVEMENTS AND WATER RESOURCE ACQUISITIONS This section covers costs associated with infrastructure, water rights acquisitions, and Section 23 fees. 8.1. INFRASTRUCTURE The discussion of infrastructure costs is divided into three sections: 1) the cost associated with planning for growth, 2) reimbursements for existing infrastructure, and 3) the costs associated with the capital infrastructure improvements presented in Section 7. 8.1.1. Planning An update of the 2020 Potable Water Master Plan of the Marana water system will be completed in 2030 at an estimated cost of $150,000. Master planning is performed periodically to plan for future growth. 8.1.2. Reimbursements There are existing reimbursements required for the construction of infrastructure in the Hartman Vistas Water System, which comprises the Hartman Vistas Water System. The infrastructure was financed by the Town and $1,573,010 in debt service payments are required during the 10-year impact fee period. 8.1.3. Infrastructure Appendix A contains a detailed cost breakdown for each capital improvement. Table 18 contains the portion of the capital improvement cost assigned to the impact fee and the period the cost will be realized. The second column contains the cost breakdown for years 2023 through 2027, and the third column contains the cost breakdown for years 2028 through 2032. WestLand Resources, Inc. 22 Q:\Jobs\500's\527.141\ENG\2020WtrInfrastructurePlan\20220824_Submittal\20220824_WaterInfrastuctureImprovementPlan.docx 2020 Water Impact Fee Infrastructure Improvement Plan Marana Water Department Table 18. Portion of Improvement Costs Assigned to Impact Fee Capital Project 2023-2027 2028-2032 50% Airport Connection to NWRRDS Pipeline' $2,025,081 50% Partnered NWRRDS Project' $3,735,894 50% Marana Booster at NWRRDSI 2,107,775 50% Blending Plan' $60,000 B-Zone Booster and Transmission Line $4,413,278 B-Zone Reservoir $617,700 C-Zone Booster $1,819,375 Tangerine 16" with Break Tanks $5,307,960 Tangerine 16" at I-10 $2,634,128 Marana Park Well $991,302 Marana Park Reservoir2 $3,566,723 Sanders Road 24" Pipeline $4,878,502 Twin Peaks Interconnect $2,901,250 Picture Rocks Interconnect $1,554,163 Honea East Well $216,550 Heritage Park Water Plant $5,328,123 Water Master Plan $150,000 Total $23,566,826 $18,740,978 150 percent of OPCC applied to 11P 2$1,000,000 of the cost of the Marana Park Reservoir will be paid by water rates. 8.2. RENEWABLE WATER RESOURCE ACQUISITIONS Currently, there are three sources of renewable water resources foreseen in the next 10 years: Reallocated Non -Indian Agricultural (NIA) Priority Central Arizona Project (CAP) water, Municipal and Industrial (M&I) Priority CAP water, and effluent from two sources: the Marana Water Reclamation Facility (WRF) and Pima County's Tres Rios WRF. The Town is a member service area of the Central Arizona Groundwater Replenishment District (CAGRD). Reliance on the CAGRD is an important alternative and backstop to the Town acquiring its own supplies. However, the Town having direct control and ownership of its water supplies is more beneficial and cost effective. 8.2.1. Integrated Water Resources Plan An Integrated Water Resources Plan will be completed during the 2023 through 2032 period for a cost of $435,000, which will be applied to all benefit areas. The Integrated Water Resources Plan will produce a long-term planning report to provide comprehensive guidelines for water supply, support modification to the Town's designation of assured water supply, support acquisition of additional renewable water supplies as needed, and support external communications regarding water resources. WestLand Resources, Inc. 23 Q:\Jobs\500's\527.141\ENG\2020WtrInfrastructurePlan\20220824_Submittal\20220824_WaterInfrastuctureImprovementPlan.docx 2020 Water Impact Fee Infrastructure Improvement Plan Marana Water Department 8.2.2. Water Resource Acquisition Water resource impact fees are applied to new development in all the benefit areas including the IGA Benefit Area. The projected growth from 2023 to 2032 is 12,205 EDUs. Table 19 shows the water required for existing customers and future growth, the existing renewable supplies, the renewable water resources available due to the projects included in the IIP for each year from 2023 through 2032, and the renewable supplies that will need to be purchased by IIP projects. Existing renewable resources are recognized in the Town's designation of assured water supply and include an entitlement to 2,336 acre-feet per year of M&I Priority CAP water, the incidental recharge ADWR will credit to the Town's groundwater allowance based on 4 percent of existing demand, long- term storage credits held at the start of 2020 (assuming average annual use over 100 years) and Marana WRF effluent (discussed further below). While not included in the designation of assured water supply, the Town also anticipates using its entitlement to Tres Rios WRF effluent to supply existing and future customers. The effluent entitlement is based on deliveries to customers within the Tres Rios sewershed and is used to accrue storage credits in the Lower Santa Cruz River Managed Recharge Project (LSCRMRP). Acquisitions include estimated volume of recharged effluent from the Marana WRF (calculated based on existing and future EDUs contributing to Marana WRF influent) and supplies to cover the remaining renewable resource required (discussed below). Table 19. Renewable Resource Requirements and Sources for Impact Fee Period Water M&I Incidental Long -Term Tres Remaining Required Priority Recharge Credit Storage Marana Rios Renewable Year (acre- CAP Water to Groundwater Credits WRF Effluent Resource feet) (acre-feet) Allowance (acre-feet) Effluent (acre- Required (acre-feet) feet) (acre-feet) 2023 4,109 2,336 163 148 1,680 152 (370) 2024 4,509 2,336 174 148 1,680 161 10 2025 4,910 2,336 186 148 1,680 169 391 2026 5,311 2,336 195 148 1,680 176 776 2027 5,712 2,336 205 148 1,680 182 1,161 2028 6,043 2,336 215 148 1,680 189 1,475 2029 6,374 2,336 225 148 3,361 195 109 2030 6,707 2,336 235 148 3,361 202 425 2031 7,039 2,336 282 148 3,361 209 703 2032 7,371 2,336 295 148 3,361 216 1,015 In 2012, the Town purchased a 0.5 million gallon per day (mgd) Biolac® secondary treatment system form Pima County with a total of $34,527,164 including debt service. Since the Marana WRF was WestLand Resources, Inc. 24 Q:\Jobs\500's\527.141\ENG\2020WtrInfrastructurePlan\20220824_Submittal\20220824_WaterInfrastuctureImprovementPlan.docx 2020 Water Impact Fee Infrastructure Improvement Plan Marana Water Department acquired for water reclamation as well as water resource recovery, future water customers will pay for one-half the cost of the acquisition plus debt service, and future sewer customers will pay for one-half the acquisition plus debt service. In 2018, a 1.5-mgd expansion to the Marana WRF was constructed, including replacement of the existing 0.5-mgd Biolac® secondary treatment system. Since the Marana WRF was acquired for water reclamation as well as water resource recovery, future water customers will pay for one-half the cost of the expansion and associated debt service, and future sewer customers will pay for one-half the cost of the expansion and associated debt service. To account for the contributions made by the current customer base toward the existing utilized capacity in the Biolac® secondary treatment system and acquisition of the WRF, the Town has contributed approximately $3.0 million toward the cost to finance the expansion. This funding provided by the Town was not included and will not be reimbursed by new customers through impact fees. Additionally, while the Biolac® will not be utilized as part of the secondary treatment process in the current expansion of the WRF, it will not be clean closed at the time of the expansion to allow further consideration for its proposed future use. A second WRF plant expansion is scheduled to start in 2024 with a design cost of $2,900,823, half of which will be assigned to the water resource fee ($1,450,411.50). Construction is scheduled to begin in 2027 with an estimated construction cost of $36,260,290, half of which plus debt service will be assigned to the water resource fee, and half will be assigned to water reclamation fee ($18,130,145). Recharge basins were constructed for Marana WRF effluent. The recharge basins allow purified water to be recharged, and to then become available as groundwater recharge credits to offset groundwater pumping. Therefore, half of the cost, plus debt service will be assigned to the water resource fee, and half will be assigned to water reclamation fee. The total cost of the recharge basins was $2,932,388. An expansion of the recharge basins is planned during the next ten years and is projected to cost $4,004,766. The remaining renewable resource required to meet growth is 1,015 acre-feet, which will be supplied by two sources: 1) the purchase of NIA CAP water and 2) the purchase of another source or sources that have not been determined. An NIA allocation of 515 acre-feet will be purchased; however, availability from year to year is uncertain. In 2012, ADWR estimated NIA supply as 43 to 67% available, with zero supply in some years. On March 2, 2021, CAP staff presented updated information related to contracting and availability for NIA. CAP presented that forecasting the future availability of NIA is not possible due to several factors, each of which has considerable uncertainty. However, staff from CAP presented WestLand Resources, Inc. 25 Q:\Jobs\500's\527.141\ENG\2020WtrInfrastructurePlan\20220824_Submittal\20220824_WaterInfrastuctureImprovementPlan.docx 2020 Water Impact Fee Infrastructure Improvement Plan Marana Water Department modeling scenarios and assumptions that indicated that over the next 25 years, the NIA may be only 18% available (averaging model traces with unfavorable assumptions) or may be up to 83% available (at the upper end of favorable assumptions). The average modeling results indicate availability between 44 and 63% and the mean for all modeled traces was presented as 47% available (CAP 2021). Assuming NIA has a 47% availability, the 515 acre-feet of NIA water will cover 242 acre-feet of the remaining renewable resource requirement of 1,015 acre-feet of renewable resource. NIA water has a cost of $1,072,743 spread over 5 years. The current market cost for renewable water is $11,000 to $12,000 per acre-foot for a 100-year lease of the water based upon current negotiations between several Arizona Municipalities and entities owning groundwater outside of the AMA that have the legal right to deliver groundwater into the AMA. For the remaining 773 acre-feet required, an assumed cost of $11,500 per acre-foot was used to calculate a cost for the IIP. The total cost for 773 acre-feet of renewable water or equivalent long- term storage credits, based on $11,500 per acre-foot is $8,889,500. Purchases will be made as supplies are available and contracts are negotiated. The costs of capital projects that are particularly designed and constructed to generate long-term water credits shall also be considered as eligible expenses for water resources acquisition. 8.3. SECTION 23 FEES Pursuant to an IGA between Marana and Oro Valley dated April 3, 2001 (Marana Resolution 2001- 36), Marana and Oro Valley share an overlapping service area. The area of overlap is shown in Appendix B, and is located within a portion of Section 23, Township 12 South, Range 12 East. Connections in the overlap area pay a fee in addition to the Twin Peaks Benefit Area impact fee. The additional fee was $750 per EDU in 2001 and has increased by 3% per year every year thereafter. Table 20 shows the fee over the next 10 years to the nearest dollar. Table 20. Additional Section 23 Fees by Year Year Section 23 Fee Year Section 23 Fee 2023 $1,437 2028 $1,666 2024 $1,480 2029 $1,715 2025 $1,525 2030 $1,767 2026 $1,570 2031 $1,820 2027 1 $1,617 1 2032 1 $1,875 9. REFERENCES Central Arizona Project (CAP). 2021. Stakeholder Meetings: NIA Briefing — March 2, 2021. https://www.cap-az.com/stakeholer-meetings. Accessed June 9, 2021. WestLand Resources, Inc. 26 Q:\Jobs\500's\527.141\ENG\2020WtrInfrastructurePlan\20220824_Submittal\20220824_WaterInfrastuctureImprovementPlan.docx FIGURES MARANA TANGERINE RD 17 Ra AVRA VALLEY RD — . C C ¢ • _ TWIN PEAKS RD ' 0 c C Q 0 z Q L • 1 -- %�-- WestLand Resources ti W O Q O z U 4 VISTA BL ?TARO FARMS RD MOORE RD INA RD NARANJA DR LAMBERT LN OVERTON RD Legend Water Mains Streets IGAAreas IGAAreas Include: 1) Marana Water Wheeling Service Area 2) Tucson Water Non -Contracted Service Area N 0 3,000 6,000 A Feet 0 800 1,600 ® Meters MARANA AZ MARANA WATER DEPARTMENT ORANGE GROVE RD 2022 Infrastructure Improvement Plan EXISTING WATER SERVICE AREA Figure 1 16 W+ `� �� ♦ ♦ ♦ ~l -� � MARANA RD ` � I I ♦ B ♦ ♦� 1 � I MOORE RD Y ♦`ANGERINEIRD ` ♦1 O `` `� _ I I � 1 I I 1 r _ _ _ AVRAVALLEYRD I I � 1w � ♦ ` ` I _O1 I I �■ � \ 1\ A--- TWIN PEAKS RD /I - o � i �Z PR WestLand Resources I 0 1 LINDA VISTA BL 2 0 A 2 n m A O I CONTARO FARMS RD . I � I _I - _I-'-1--'0ARD t" 1 I I - \ NARANJA DR LAMBERT LN OVERTON RD ORANGE GROVE RD Legend Water System Saguaro Bloom Hartman Vistas Marana Airport - North Marana Palo Verde - Picture Rocks Tangerine Business Park Pressure Zone Boundary W+ Pressure Zone Water Mains — — I Marana Town Limits Streets N 0 3,000 6,000 A Feet 0 800 1,600 ® Meters MARANA AZ MARANA WATER DEPARTMENT 2022 Infrastructure Improvement Plan EXISTING WATER SYSTEMS & PRESSURE ZONES Figure 2 AVRA VALLEY RD I I I I I I I TWIN PEAKS RD I p I � O I � I Note- This figure is for reference only. Benefit Areas are defined in the 2022 Infrastructure Improvement Plan Based on the system connection. WestLand Resources Legend ' Benefit Area I GA h - North Marana I Palo Verde - Twin Peaks 1-. -Saguaro Bloom r , Water Mains / Marana Town Limits REJAD _ - Streets TANGERINE RD ♦ 1 � I ♦♦ O r - - ' ♦ j'j1[ I� - - I _ MBERT N I LA to P INDA Vl L 4 7 � _ CO TARO FARMSRD 1i I I NA - 4; -r - I 1 ♦ alp —�� 1 - --, . ORANGE GROPE RD N 0 3,000 6,000 A ® Feet 0 800 1,600 ® Meters MARANA AZ MARANA WATER DEPARTMENT 2022 Infrastructure Improvement Plan BENEFIT AREAS Figure 3 I ` I VillageE I 1 1 I I I Sanders Grove 1 + MARANA RD ' Marana Towne Center The Village at Barnett Payson Farms \ [(Remington Ranch) ------------------- L -/ �. I -A I- **4 0 1� I of Tortolita Uptown �..1 Marana & 110 (Dahlstrom Commercial)�'✓ MaranaL- - �` X Cypress Gardens Rancho Marana Town Center .� J Rancho Marana - West - J W+ Heritage Park Shoppes _ C w_t^dden r C 0 Airport ■ I I ��I I I TWIN PEAKS RD hL • � o i' r— WestLand Resources Tortolita 30 Rezone ^ r Stonegate ` Mandarina Sonoran Preserve at Bajada L Mandarina South ~` pp Marana Tech Center A `; C `D Fi r `/ Tortolita Vistas Tangerine Business Park Tangerine Thornydale ANGER* RD Farms II yat ar-,11 Gladi ` ` `♦ `` Tangerine Breakers 40 Z ` Twin Peaks Road Commerce Park (Future Rezones) 1 AVRA VALLEY RD Y Twin Peaks Vistas • I Saguaro Bloom Marana Spe 1 1 =� La Puerta del Lind Norte East Pima Farms North Joplin Estates Cortaro Ranch !0% �•� �� Z�" l \1 Z 1 PR - I i I I I 1^® I 1 - 1- I A MOORE RD_Lr_ (Villagio, HSL) �Y Q Tangerine ThornydE r SW Corner Rezone - i6ain Peaks Estates Preserve at Twin Pei L rum/Center Vista Village-LINDA G a VISTA BL o n m 0 Anza CORTARO FARMS RD Riverside @ Grove Ind Legend f� Marana Town Limits Streets Planned Developments Water System Saguaro Bloom Hartman Vistas IGA Marana Airport North Marana Picture Rocks Tangerine Business Park Pressure Zone Boundary N 0 3,000 6,000 Feet A0 800 1,600 ® Meters MARANA WATER DEPARTMENT 2022 Infrastructure Improvement Plan PLANNED DEVELOPMENT AREAS Figure 4 1,000,000-gallon Storage Tank 2,250-gpm Booster r 1,009 gpm Well (55-203658) MARANA RD Sandario Water Plant 15,000-gallon Storage Tank 1,000-gpm Booster 550-gpm Well (55-604844) San Lucas W+ to X Zone Booster 1,300-qpm W+ to X Zone Booster Marana Park Water Plant 1,000,000-gallon Storage Tank 3,200-aom Booster Gladden Farms Well Site 300-aom Well (55-594508'. 50,000-gallon Storage Tank - -g" Or, 322S "r 550 gpm Booster 3,000 gpm Booster 312-gpm Well (55 632634) Honea East Water Plant 34,000-gallon Storage Tank o 720-gpm Booster Z Airline Water Plant 250-gpm Well (55-632633) y 18,000-gallon Storage Tank 230 qpm Booster Airport West Water Plant 500,000-gallon Storage Tank 4,500-gpm Booster 2,000-gpm Well (55-582677)rAVRA LLEYRD _ Airport East Well Site 0 2,034-gpm Well (55-582E 1,870,000-gallon Storage Tank 3,000-gpm Booster 1,100-qpm Well (55-206643) 25,000-gallon Storage Tank 350-gpm Booster 170-gpm Well (55-605214) 500,000-gallon Storage Tank 1,850-gpm Booster 55-gpm Well (55-224121) TANGERINE RD 15,000-gallon Storage Tank 1,200-gpm Booster 252-gpm Well (55-604832) _L r t TWIN PEAKS RD Pal Verde Water Plant Twin Peaks Well Site Palo 986-gpm Well (55-587027) 00-gallon Storage Tank � - 400-gpm Booster 273-gpm Well (55-606675) Continental Reserve Water Plant Pioneer Well Site 1,000,000-gallon Storage Tank 954-gpm Well (55-224545 3,750-gpm Booster 1,374-gpm Well (55-578734) Lazy K Booster 1,320-gpm Booster Continental Well 2 Site I IT 1,037-gpm Well (55-213492) Picture Rocks Booster TITT660-gpm Booster Springs Water Plant 1,000,000-gallon Storage Tank 3,100-gpm Booster Picture Rocks Water Plant Westland Resources 100,000-gallon Storage Tank 1,000-gpm Booster 1,000,000-gallon Storage Tank 1,850-gpm A+ Zone Booster Hartman Vistas Water Plant 1,200,000-gallon Storage Tank 1,300-gpm Z-Zone Booster T ch Water Plant on Storage Tank ooster Zll (55-603548) ista Booster Site ,m Booster -__ CORTARO FARMS RE Oshrin Water Plant 35,000-gallon Storage Tank 350-gpm Booster INARD ,_r I Legend Water Plants and Wells Water Mains Marana Town Limits Label Color by Water System North Marana CPicture Rocks Hartman Vistas Saguaro Bloom CPalo Verde Marana Airport [ Tangerine Business Park N 0 3,000 6,000 A Feet 0 800 1,600 Meters MARANA AZ MARANA WATER DEPARTMENT 2022 Infrastructure Improvement Plan EXISTING INFRASTRUCTURE Exhibit 5 L7LF ♦ �c .' I 1.4 low i0ftNA RD �il ` ` F � ♦ ' �f � >� l /� I 4r-1 �- ♦ B ` \� A VMOO - I X • ` `W N o 96 W ) 1 I ♦♦ ` o 1 ` S NA ANJA OR W ` W AVRA VALLEY RD - • - • ^ LAMBE LN i 1r� ` H tit ���� �� Z w— TWIN PEAKS RD Z LIN A VIST i � C R O FA MS RD � � ! �"JL° t y� R ORANGE GROIVE RD L r- WOO- WestLand Resources Legend Water Mains Marana Town Limits Streets Pressure Zone Boundary Existing Water Plants O Proposed Infrastructure A Well ■ Reservoir • Booster N 0 3,000 6,000 A ® Feet 0 800 1,600 ® Meters MARANA AZ MARANA WATER DEPARTMENT 2022 Infrastructure Improvement Plan CAPITAL IMPROVEMENT PROJECTS Figure 6 APPENDIX A Opinions of Probable Construction Cost and Site Plans Project Name: Marana CIP Prepared by: EDC Date: 4/8/22 Project No. 527.141 Checked by: Date: 3/1/22 Location: Town of Marana, AZ Client: Town of Marana Description: Airport Connection to NWRRDS Pipeline Item No. Item Description Units Quantity Unit Price Amount Remarks 1 Mobilization LS 2 $31,250 $62,500 2 Site Preparation LS 2 $108,750 $217,500 Includes masonry wall and steel gate. 3 Yard Piping - above and below ground LS 2 $147,500 $295,000 Commection to existing suction and distribution system 4 1,500-gpm NWWRDS booster station LS 1 $318,750 $318,750 5 3,300-gpm Airport booster station LS 1 $540,000 $540,000 5 10,000-gallon Hydropneumatic Tank LS 1 $137,5001 $137,500 150 psi with appurtenances 6 5,000-gallon Hydropneumatic Tank LS 1 $106,250 $106,250 300 psi with appurtenances 7 12-inch diameter DIP LF 350 $212.50 $74,375 8 Site Electrical and control LS 2 $312,500 $625,000 NWWRDS Booster Site 9 Southeast Well Upgrades LS 1 $475,352 $475,352 Subtotal $2,852,227 Design/Engineering (15%) $427,834 Inspection (2%) $57 045 Contingency (25%) $713,057 TOTAL $4,050,163 Project Name: Marana CIP Project No. 527.141 Location: Town of Marana, AZ Description: Partnered NWRRDS Project Prepared by: EDC Date: 4/8/22 Checked by: Date: Client: Town of Marana ite In Item Description Units Quantity Unit Price Amount Remarks 1 1 Design and Construction LS 1 1 17,471,7881 S7,471,788 I Estimate Provided by Town of Marana TOTAL $7,4719788 Project Name: Marana CIP Prepared by: EDC Date: 4/8/22 Project No. 527.141 Checked by: Date: Location: Town of Marana, AZ Client: Town of Marana Description: Marana. Booster at NWRRDS m Item Description Units Quantity Unit Price Amount Remarks 1 IDesign and Construction LS 1 4,215,549 $4,215,549 Estimate Provided by Town of Marana TOTAL $4,2159549 Project Name: Marana CIP Project No. 527.141 Location: Town of Marana, AZ Description: B-Zone Booster and Transmission Line Prepared by: MDO Date: 3/l/22 Checked by: EDC Date: 3/1/22 Client: Town of Marana Item No. Item Description Units Quantity Unit Price Amount Remarks 1 Mobilization LS 1 $31,250 $31,250 2 Site Preparation LS 1 $108,750 $108,750 3 New Booster Station with pad and shade structure LS 1 $418,750 $418,750 4 Yard Piping - above and below ground LS 1 $147,500 $147,500 5 Site Electrical and Control LS 1 $450,000 $450,000 Includes RTU 6 200 KVA Generator and automatic transfer switch LS 1 $100,000 $100,000 7 5,000-gallon Hydropneumatic Tank LS 1 $81,250 $81,250 8 16-inch water main LF 8,920 $206 $1,837,520 Subtotal $3,175,020 Design/Engineering (12%) $381,002 Inspection (2%) $63,500 Contingency (25%) $793,755 TOTAL $4,413,278 Project Name: Marana CIP Prepared by: MDO Date: 3/l/22 Project No. 527.141 Checked by: EDC Date: 3/l/22 Location: Town of Marana, AZ Client: Town of Marana Description: B-Zone reservoir Item No. Item Description Units Quantity Unit Price Amount Remarks 1 Install 210,000 gallon Reservoir LS 210,000 $1.88 $393,750 2 120X120 Parcel Acquisition LS 1 $18,750 $18,750 3 Site Piping LS 1 $22,500 $22,500 Subtotal $435,000 Design/Engineering (15%) $65,250 Inspection (2%) $8,700 Contingency (25%) $108,750 TOTAL $617,700 Project Name: Marana CIP Prepared by: MDO Date: 3/1/22 Project No. 527.141 Checked by: EDC Date: 3/1/22 Location: Town of Marana, AZ Client: Town of Marana Description: C-Zone Booster Item No. Item Description Units Quantity Unit Price Amount Remarks 1 Mobilization LS 1 $31,250 $31,250 2 Site Preparation LS 1 $108,750 $108,750 3 New 1200 gpm Booster Station with Shade Structure LS 1 $362,500 $362,500 4 Yard Piping - above and below ground LS 1 $147,500 $147,500 5 Site Electrical and Control LS 1 $450,000 $450,000 includes RTU 6 200 KVA Generator and automatic transfer switch LS 1 $100,000 $100,000 7 5,000-gallon Hydropneumatic Tank LS 1 $81,250 $81,250 Subtotal $1,281,250 Design/Engineering (15%) $192,188 Inspection (2%) $25,625 Contingency (25%) $320,313 TOTAL $1,819,375 Project Name: Marana CIP Prepared by: MDO Date: 3/l/22 Project No. 527.141 Checked by: EDC Date: 3/l/22 Location: Town of Marana, AZ Client: Town of Marana Description: Tangerine 16-inch with Break Tanks Item No. Item Description Units Quantity Unit Price Amount Remarks 1 16-inch water main LF 16,750 $206 $3,450,500 2 50,000 Gallon Break Tank EA 2 $93,750 $187,500 3 Parcel Acquisition EA 2 $50,000 $100,000 Subtotal $3,738,000 Design/Engineering (15%) $560,700 Inspection (2%) $74,760 Contingency (10%) $934,500 TOTAL $5,307,960 Project Name: Marana CIP Prepared by: MDO Date: 3/1/22 Project No. 527.141 Checked by: EDC Date: 3/1/22 Location: Town of Marana, AZ Client: Town of Marana Description: Tangerine 16-inch at I-10 Item No. Item Description Units Quantity Unit Price Amount Remarks 1 16-inch water main LF 8,920 $206 $1,837,520 2 Tie into existing water main EA 2 $6,875 $13,750 3 Pavement removal and replacement LS 2 $1,875 $3,750 Subtotal $1,855,020 Design/Engineering (15%) $278,253 Inspection (2%) $37,100 Contingency (25%) $463,755 TOTAL $2,634,128 Project Name: Marana CIP Prepared by: MDO Date: 3/l/22 Project No. 527.141 Checked by: EDC Date: 3/l/22 Location: Town of Marana, AZ Client: Town of Marana Description: Marana Park Well Item No. Item Description Units uantity Unit Price Amount Remarks Marana Park Reservoir 1 Well Drilling LS 1 $488,100 $488,100 2 Vertical Turbine Pump LS 1 $81,250 $81,250 3 8" DIP site piping and manifold LS 1 $78,750 $78,750 4 Electric and Controls LS 1 $50,000 $50,000 Includes pump panel (no RTi) Subtotal $698,100 Design/Engineering (15%) $104,715 Inspection (2%) $13,962 Contingency (25%) $174,525 TOTAL $991,302 Project Name: Marana CIP Project No. 527.141 Location: Town of Marana, AZ Description: Marana Park Reservoir Prepared by: MDO Date: 3/l/22 Checked by: EDC Date: 3/l/22 Client: Town of Marana Item No. Item Description Units Quantity Unit Price Amount Remarks I Mobilization and Demobilization LS 2 $43,750 $87,500 2 Demolition LS 1 $18,750 $18,750 3 Tank and ring wall Gall 1,500,000 $1.88 $2,820,000 4 Site Piping I LS 1 $280,000 $280,000 5 Site Grading and imported materials LS 1 $130,258 $130,258 6 Chlorinator LS 1 $46,250 $46,250 7 Subtotal $3,382,758 Design/Engineering (8%) $270,621 Inspection (2%) $67,655 Contingency (25%) $845,689 TOTAL $4,566,723 Project Name: Marana CIP Project No. 527.141 Location: Town of Marana, AZ Description: Sanders 24-inch Pipeline Prepared by: Checked by: MDO EDC Client: Town of Marana Date: 3/ l /22 Date: 3/l/22 Item No. Item Description Units Quantity Unit Price Amount Remarks 1 24-inch water main LF 8,700 $406 $3,532,200 Excludes hard rock excavation 2 Tie into existing water main EA 2 $14,375 $28,750 Subtotal $3,560,950 Design/Engineering (10%) $356,095 Inspection (2%) $71,219 Contingency (25%) $890,238 TOTAL $4,878,502 Project Name: Marana CIP Prepared by: MDO Date: 3/1/22 Project No. 527.141 Checked by: EDC Date: 3/1/22 Location: Town of Marana, AZ Client: Town of Marana Description: Twin Peaks Interconnect Item No. Item Description Units Quantity JUnit Pricel Amount I Remarks 1 Construction LS 1 12,901,2501 $2,901,250 1 Estimate Provided by Town of Marana TOTAL $2,901,250 Project Name: Marana CIP Prepared by: MDO Date: 3/l/22 Project No. 527.141 Checked by: EDC Date: 3/l/22 Location: Town of Marana, AZ Client: Town of Marana Description: Picture Rocks Interconnect Item No. Item Description Units I Qu ntity JUnit Pricel Amount I Remarks Picture Rocks Interconnect 1 12-inch water main LF 9,000 $135 $1,215,000 2 Tie into existing water main EA 1 $6,875 $6,875 3 Pavement removal and replacement LS 1 $1,875 $1,875 Subtotal $1,223,750 Design/Engineering (15%) $183,563 Inspection (2%) $24,475 Contingency (25%) $122,375 TOTAL $1,554,163 Project Name: Marana CIP Prepared by: MDO Date: 3/l/22 Project No. 527.141 Checked by: EDC Date: 3/l/22 Location: Town of Marana, AZ Client: Town of Marana Description: Honea East Well Item No. Item Description p Unit Quantity Unit Price Amount Remarks 1 Re -equip well to add 250 gpm LS 1 $75,000 $75,000 250 gpm pump inc starter cabinet 2 Pump and Motor LS 1 $15,000 $15,000 Grundfos 3 Piping LS 1 $62,500 $62,500 Subtotal $152,500 Design/Engineering (15%) $225875 Inspection (2%) $35050 Contingency (25%) $385125 rl TOTAL 1 $216,550 Project Name: Marana CIP Prepared by: MDO Date: 3/l/22 Project No. 527.141 Checked by: EDC Date: 3/l/22 Location: Town of Marana, AZ Client: Town of Marana Description: Heritage Park Water Plant Item No. Item Description Units Quantity Unit Price Amount Remarks 1 Mobilization and Demobilization LS 2 $43,750 $87,500 2 Demolition LS 1 $18,750 $18,750 3 Tank and ring wall Gall 1,800,000 $1.88 $3,384,000 4 Site Piping LS 1 1 $280,000 $280,000 5 Site Grading and imported materials LS 1 $130,258 $130,258 6 Chlorinator LS 1 $46,250 $46,250 7 New 1250 gpm Booster Station with Shade Structure LS 1 $362,500 $362,500 8 Yard Piping - above and below ground LS 1 $147,500 $147,500 9 Site Electrical and Control LS 1 $450,000 $450,000 includes RTU 10 200 KVA Generator and automatic transfer switch LS 1 $100,000 $100,000 11 5,000-gallon Hydropneumatic Tank LS 1 $81,250 $81,250 12 Well Drilling LS 1 $488,108 $488,108 13 1000 gpm Vertical Turbine Pump LS 1 $81,250 $81,250 14 8" DIP site piping and manifold LS 1 $78,750 $78,750 15 Electric and Controls LS 1 $50,000 $50,000 Includes pump panel (no RTU) 16 Subtotal $3,946,758 Design/Engineering (8%) $315,741 Inspection (2%) $78,935 Contingency (25%) $986,689 TOTAL $5,328,123 APPENDIX B Marana and Oro Valley Water Service Overlap Area EXHIBIT A Marana and Oro Valley n Water Service (/.,\1 Overlap Area N Oro Valley Water Service Area Marana and Oro Valley Service Area Overlap ® Marana Town Limits 0.2 0 0.2 0.4 Wes m1 == )f Town of Mar