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Resolution 2014-016 adopting the water infrastructure and wastewater infrastructure improvement plans
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I'�C��V, rI�HE��F��E, �E IT ��(�LVEI� ��Y `T� I� I�AYC���. A�D �����IL �F T�-I� T�W� ��" M.�R.A�A, �.s f���aw�: 5���`I+�I`� �. Th� r�pc�r� e�.ti�1�d "�4 �� Wat�er Iz��p�.�t ��� I����•�.str�u�tc�r� Impt ove�� P��.n," c�at�d F�b�u���;� ��,�� I 4 a� �.���.c�.+ed �� E���ibi�: A t� "�h�s resa���ti��, �s ���r�by ad�p�ec�. ���T�+�1`� �,. �`�ie r��c��� e�t�tled "�� 13 Se�ver I��pa�� Fe+� Infrastr�.ct�.zr� ������QV���.c��t Pla��," d�.t�d �`�brua� � 1, �� 14 and �.t��.ch�� �� E�.h�bi� � ta t��is resQlu�ia�1, �s hc��e�y ac�op�e�. PA� �EI� AI`�� .�I��P��I� B� T�E �A A�� �(�LT��IL C..�F �'�-�]E T��VI� �I` �.��AI��., A.�I�+�3�A, t��is ����' da� c��` Febru�ry, �� 14. ,� � F J � . �- __ �. ���. �. "� M�y��' E H,���� . ��T���a aC 1�P1.1.� E� .�� r . C� F��17 F . � . ' � '7 � � '� - �� . . � - .�� Sy . J,` r �+��el C. ��a� �`�w� �lerl� � ssid�, T`awr� ��r��y� �". � �t �� ������ �' �� ���,� � ����� �a�7. ���� r z; �:��.��.��� ���t����t4 �:�� ��n� r.ic F�c�ralu�i��a �f u. 2�114�� 1 � 2013 WATER IMPACT FEE INFRASTRUCTURE IMPROVEMENTS PLAN TOWN OF MARANA Marana, Arizona 85743 Prepared by: Westland Reso u rce s, Inc. En gin eering and Environmental Consu lta nts 400 I E. P aradise Fa ll s Drive Tucson, Arizona 85712 F eb r uary 201 4 Project No. 527.0 I Exhibit A to Marana Resolution 2014-016 2013 Water Impact Fee Infrastructure Improvements Plan Town of Marana Municipal Water Department WestLand Resources, Inc. ii Engineering and Environmental Consultants Q:\jobs\500's\527.01\Impact Fees\Water Impact fee Report\Final\2013 Report_022114.docx TABLE OF CONTENTS 1. INTRODUCTION ................................................................................................................................ 1 2. SERVICE AREAS ................................................................................................................................ 1 3. 10-YEAR LAND USE ASSUMPTIONS ............................................................................................. 1 4. LEVEL OF SERVICE FOR EXISTING SERVICE AREAS............................................................... 3 5. LEVEL OF SERVICE FOR FUTURE SERVICE AREAS ................................................................. 3 6. EXISTING CAPACITY ....................................................................................................................... 3 6.1. Existing Demand .......................................................................................................................... 4 6.2. Existing Storage Capacity ............................................................................................................ 5 6.3. Existing Booster Capacity ............................................................................................................ 6 6.4. Existing Well Capacity ................................................................................................................. 7 7. ESTIMATE OF EXISTING AND FUTURE EDU’S ........................................................................... 8 8. CAPITAL FACILITIES........................................................................................................................ 9 9. UTILIZATION OF PROPOSED AND EXISTING FACILITIES ..................................................... 10 9.1. Projected Future Demand ........................................................................................................... 10 9.2. 10-Year Storage Requirements ................................................................................................... 11 9.3. 10-year Booster Station Requirements ....................................................................................... 12 9.4. 10-year Well Requirements ........................................................................................................ 13 9.5. Projected Water Right Requirements ......................................................................................... 13 10. COST OF CAPITAL IMPROVEMENTS AND WATER RIGHTS ACQUISITION ....................... 14 10.1. Water Infrastructure .................................................................................................................... 14 10.2. Water Rights Acquisition ........................................................................................................... 17 TABLES Table 1. Town of Marana Growth Projections by Development .................................................................. 1 Table 2. Existing Equivalent Dwelling Units ............................................................................................... 4 Table 3. Equivalent Dwelling Unit Meter Factors ........................................................................................ 4 Table 4. Existing Demand ............................................................................................................................. 5 Table 5. Existing Storage Capacity ............................................................................................................... 6 Table 6. Existing Booster Capacity............................................................................................................... 6 Table 7. Existing Well Capacity ................................................................................................................... 7 Table 8. Growth in Dwelling Units, Commercial Acres, and EDUs ............................................................ 8 Table 9. 10-year Cumulative Equivalent Dwelling Units ............................................................................. 8 Table 10. Capital Facilities and 10-year Growth in EDUs ........................................................................... 9 Table 11. Capital Facilities and 10-year Growth in EDUs (Water Resources) ........................................... 10 Table 12. Projected 10-year Demand .......................................................................................................... 11 Table 13. 10-year Projected Storage Requirements .................................................................................... 11 Table 14. 10-year Projected Booster Capacity Requirements .................................................................... 12 Table 15. 10-year Projected Well Capacity ................................................................................................ 13 Table 16. North Marana Service Area Capital Improvement Costs ........................................................... 15 Table 17. Twin Peaks/Continental Reserve Service Area Capital Improvement Costs .............................. 15 Table 18. Estimated Cost of Reference Facilities ....................................................................................... 16 Table 19. Estimated Value of Existing Infrastructure ................................................................................. 16 Table 20. Estimated Impact Fees for Saguaro Bloom, Palo Verde, Airport, and Falstaff Service Areas ... 16 Table 21. Additional Section 23 Fees by Year ........................................................................................... 17 Table 22. Annuity for acquisition of the Marana WRF .............................................................................. 17 Table 23. Water Rights Acquisition Capital Costs by Year ........................................................................ 18 Exhibit A to Marana Resolution 2014-016 2013 Water Impact Fee Infrastructure Improvements Plan Town of Marana Municipal Water Department Figure I. Figure 2. Exhibit 1. FIGURES (jollow text) Marana Water Service Areas and Press ure Zone Boundaries Development Areas EXHIBITS 2013 Potable Water Impact Fee Evaluation Water Service Areas APPENDICIES Appendix A. Opinions of Probable Construction Cost and Site Plans Appendix B. Marana and Oro Valley Water Service Overlap Area WestLand Resources, Inc. Engrn eenng and Enw onm ental Con sul tants Q·ljobs\SOO's\527 .0 1\Jm pact Fecs\Waterlmpact fee Repon\F ma l\20 13 Repon_ 022 114 .docx iii Exhibit A to Marana Resolution 2014-016 2013 Water Impact Fee Infrastructure Improvements Plan Town of Marana Municipal Water Department WestLand Resources, Inc. 1 Engineering and Environmental Consultants Q:\jobs\500's\527.01\Impact Fees\Water Impact fee Report\Final\2013 Report_022114.docx 1. INTRODUCTION The Town of Marana Utilities Department (Marana Water) provides water service primarily within the corporate limits of the Town of Marana (the Town). Marana Water serves approximately 14,500 people and has approximately 5,882 residential and commercial accounts. The Marana Water service area is expected to grow as the Town grows. Currently, Marana Water relies on groundwater for its potable water supply. Marana Water strives to seek additional renewable sources of supply such as Central Arizona Project (CAP) water and recharged effluent to achieve safe yield set forth by the Arizona Department of Water Resources (ADWR). The purpose of the impact fee study is to determine the capital improvements and water right acquisitions that are required to meet the demands associated with the next 10 years of growth, and to determine the per-connection impact fee for each benefit area. 2. SERVICE AREAS Figure 1 is a map of the service areas used in this analysis. It is intended that two of the service areas, Twin Peaks and Continental Reserve be combined so that they can share well and storage capacity. The integration of the two systems will also reduce the need for additional booster station capacity to support growth in the current Continental Reserve Service Area. 3. 10-YEAR LAND USE ASSUMPTIONS The Town has prepared Land Use Assumptions: Public Report, dated February 11, 2014. A summary of the growth projections for the planning period are shown by development area in Table 1. The location of each development area is shown in Figure 2. Table1 includes the projected number of dwelling units and commercial acres projected within 10 years. The fourth column shows the number of Equivalent Dwelling Units (EDU) for each development, where an EDU represents the amount of water used by one residential dwelling unit. For this study, each commercial acre is equivalent to four EDUs. The final column shows the water service provider for each development. A significant fraction of the growth occurs in areas served by Tucson Water. Some of the areas are served by Tucson Water, but the water is provided by Marana through either an Intergovernmental Agreement (IGA) or a Wheeling Agreement (WA). Table 1. Town of Marana Growth Projections by Development Development 10 Years Growth Water Service Provider Dwelling Units Commercial Acres Equivalent Dwelling Units Airport 0 29 116 Marana Aerie Apartments 411 0 411 Tucson Water Anway Farms 0 0 0 Marana Exhibit A to Marana Resolution 2014-016 2013 Water Impact Fee Infrastructure Improvements Plan Town of Marana Municipal Water Department WestLand Resources, Inc. 2 Engineering and Environmental Consultants Q:\jobs\500's\527.01\Impact Fees\Water Impact fee Report\Final\2013 Report_022114.docx Development 10 Years Growth Water Service Provider Dwelling Units Commercial Acres Equivalent Dwelling Units Barrios De Marana 63 4 79 Marana Casa Sevilla 48 0 48 WA Cascada 322 17 389 Marana Cascada North 0 0 0 Marana Continental Ranch 237 49 433 Tucson Water Cortaro Crossing 0 10 41 Marana Cypress Gardens 165 0 165 Marana De Anza 233 0 233 Marana Dove Mountain 833 20 912 Tucson Water Fianchetto Farms 97 0 97 Marana Gladden Farms 648 18 720 Marana Gladden Farms II 211 0 211 Marana Hartman 59 59 0 59 Marana Honea Heights III 0 0 0 Marana Ina/Silverbell 41 0 41 IGA Lazy K 180 0 180 Marana Mandarina 250 22 336 Marana Marana Gardens 0 0 0 Marana Marana Main St. 0 14 56 Marana Marana Mercantile 0 31 125 Marana Marana Spectrum 0 106 423 Marana Marana Towne Center 92 13 144 Marana Payson Farms 37 0 37 Marana Pima Farms 0 3 12 Marana Pima Farms North 199 0 199 Marana Rancho Marana 0 0 0 Marana Rancho Marana Town Center 0 10 40 Marana Saguaro Bloom 1,418 0 1,418 Marana Saguaro Ranch 10 0 10 Tucson Water San Lucas 267 0 267 Marana Sanders Grove 113 0 113 Marana Shops At Tangerine 0 0 0 Marana Sky Ranch 42 0 42 Tucson Water Tangerine Business Park 0 14 54 Marana Tangerine Commerce Park 0 22 90 Marana Tangerine Crossing 0 10 40 Tucson Water Tangerine Thornydale 50 4 64 IGA Exhibit A to Marana Resolution 2014-016 2013 Water Impact Fee Infrastructure Improvements Plan Town of Marana Municipal Water Department WestLand Resources, Inc. 3 Engineering and Environmental Consultants Q:\jobs\500's\527.01\Impact Fees\Water Impact fee Report\Final\2013 Report_022114.docx Development 10 Years Growth Water Service Provider Dwelling Units Commercial Acres Equivalent Dwelling Units Tapestry 120 0 120 Tucson Water The Estate Lots At Tortolita Preserve 4 0 4 Tucson Water The Villages Of Tortolita 0 0 0 Marana Tortolita Reserves 79 0 79 IGA Tortolita Vistas 116 0 116 IGA Uptown At Marana 47 6 71 Marana Vanderbilt Farms 460 0 460 Marana Whitney Farms 12 0 12 Marana Willow Ridge Customs 35 0 35 Marana Total 6,895 401 8,498 4. LEVEL OF SERVICE FOR EXISTING SERVICE AREAS The Marana water system is divided into seven service areas as shown in Figure 1. In general, the required level of service in terms of the water system engineering design criteria for each water system is the same. The storage requirement is 1.5 times the average day demand (ADD) plus two hours of fire flow. The requirement for wells is Peak Day Demand (PDD) with the largest well out of service. If the system is not served by gravity storage, the booster station requirement is the greater of PDD plus fire flow or Peak Hour Demand (PHD). The Falstaff and Palo Verde Water Systems currently only have one well each. The Continental Reserve Water System has an interconnect with Tucson Water, which satisfies the well requirement with one well out of service. The Twin Peaks Water System has an interconnect with the Oro Valley Water Utility, which satisfies the well capacity requirement with the largest well out of service. 5. LEVEL OF SERVICE FOR FUTURE SERVICE AREAS The level of service in terms of the water system engineering design criteria will be the same as stated above for all service areas. The Town will not address the lack of redundant well capacity or changing the level of service in the Falstaff and Palo Verde Service Areas; no growth is projected for these two service areas. 6. EXISTING CAPACITY Table 2 shows the existing number of EDUs in each service area and pressure zone. The EDUs in Table 2 are based on the number of connections in each service area/pressure zone and the meter size. Table 3 shows the number of EDUs assigned to each meter size. Figure 1 shows the location of the service areas and pressure zones. Exhibit A to Marana Resolution 2014-016 2013 Water Impact Fee Infrastructure Improvements Plan Town of Marana Municipal Water Department WestLand Resources, Inc. 4 Engineering and Environmental Consultants Q:\jobs\500's\527.01\Impact Fees\Water Impact fee Report\Final\2013 Report_022114.docx Table 2. Existing Equivalent Dwelling Units Service Area Zone Existing EDUs North Marana W+ 3,265 North Marana X1a 57 North Marana X1d North Marana Y1 North Marana Total 3,322 Continental Reserve CR 2,013 Continental Reserve PR 233 Continental Reserve Y3 110 Continental Reserve SR 30 Continental Reserve Total 2,386 Twin Peaks A Twin Peaks Y1 664 Twin Peaks Z1 415 Twin Peaks Total 1,079 Saguaro Bloom X1b 236 Palo Verde X1c 60 Airport X1c 47 Falstaff X1d 1 IGA 4 WA Total 7,135 Table 3. Equivalent Dwelling Unit Meter Factors Meter Size (inches) EDU Ratio 5/8 x 3/4 1.0 3/4 1.2 1 2.5 1.5 5.0 2 8.0 3 15.0 4 25.0 6 50.0 8 80.0 6.1. EXISTING DEMAND Based on historical flow data, the average demand for the Marana water system is 276.15 gpd per EDU Design requirements are based on the following assumptions: • Average Day Demand (ADD) = 276.15 gpd/EDU • Peak Day Demand (PDD) = 2 * ADD Exhibit A to Marana Resolution 2014-016 2013 Water Impact Fee Infrastructure Improvements Plan Town of Marana Municipal Water Department WestLand Resources, Inc. 5 Engineering and Environmental Consultants Q:\jobs\500's\527.01\Impact Fees\Water Impact fee Report\Final\2013 Report_022114.docx • Peak Hour Demand (PHD) = 3.5* ADD (if ADD <= 1,000 gpm), or 3*ADD (otherwise); PHD may be dependent on other instantaneous flow requirements. Table 4 shows the existing demand flows calculated from the existing connection, the meter sizes, and the assumptions listed above. Table 4. Existing Demand Service Area Zone Average Day Demand (gpd) Peak Day Demand (gpm) Peak Hour Demand (gpm) North Marana W+ 901,630 1,252 2,191 North Marana X1a 15,741 22 115* North Marana X1d 0 North Marana Y1 0 North Marana Total 917,370 1,274 2,306 Continental Reserve CR + SR 564,174 784 1,371 Continental Reserve PR 64,343 89 156 Continental Reserve Y3 30,377 42 173* Continental Reserve Total 658,894 915 1,701 Twin Peaks A 0 Twin Peaks Y1 183,364 255 446 Twin Peaks Z1 114,602 159 279 Twin Peaks Total 297,966 414 724 Saguaro Bloom X1b 65,171 91 158 Palo Verde X1c 16,569 23 145* Airport X1c 12,979 18 127* Falstaff X1d 276 0.38 20* Total 1,969,226 2,735 5,182 *Peak Hour Demand based on instantaneous flow requirement 6.2. EXISTING STORAGE CAPACITY Table 5 shows the existing reservoir requirements, the existing reservoir capacity, and the amount of excess capacity. Required storage capacity is equal to 1.5 times ADD plus two hours fire flow. Required fire flow varies by service area and water pressure zone. Exhibit A to Marana Resolution 2014-016 2013 Water Impact Fee Infrastructure Improvements Plan Town of Marana Municipal Water Department WestLand Resources, Inc. 6 Engineering and Environmental Consultants Q:\jobs\500's\527.01\Impact Fees\Water Impact fee Report\Final\2013 Report_022114.docx Table 5. Existing Storage Capacity Service Area Zone Required 2- hour Fire Flow (gpm) Required Storage (gallons) Existing Storage (gallons) Excess Storage Capacity (gallons) North Marana W+ 2,500 1,676,055 2,075,000 398,945 North Marana X1a 1,000 North Marana X1d North Marana Y1 North Marana Total 1,676,055 2,075,000 398,945 Continental Reserve CR + SR 1,500 1,122,776 1,000,000 127,224 Continental Reserve PR 700 250,000 Continental Reserve Y3 2,500 345,565 1,000,000 654,435 Continental Reserve Total 1,468,341 2,250,000 781,659 Twin Peaks A Twin Peaks Y1 1,500 455,045 185,000 (270,045) Twin Peaks Z1 1,000 291,903 1,100,000 808,097 Twin Peaks Total 746,949 1,285,000 538,051 Saguaro Bloom X1b 2,000 337,757 1,940,000 1,602,243 Palo Verde X1c 24,854 40,000 15,147 Airport X1c 2,750 349,469 500,000 150,531 Falstaff X1d 414 10,000 9,586 Total 4,603,838 8,100,000 3,496,162 6.3. EXISTING BOOSTER CAPACITY Table 6 shows the existing booster capacity for each service area and zone including the amount of excess capacity. The required booster capacity is the greater of PDD plus fire flow or PHD. Table 6. Existing Booster Capacity Service Area Zone Required Booster Capacity (gpm) Existing Booster Capacity (gpm) Excess Booster Capacity (gpm) North Marana W+ 3,752 6,720 2,968 North Marana X1a 1,022 1,300 278 North Marana X1d North Marana Y1 North Marana Total 4,774 8,020 3,246 Continental Reserve CR + SR 2,284 2,500 216 Continental Reserve PR 789 1,000 211 Continental Reserve Y3 2,542 3,100 558 Continental Reserve Total 5,615 6,600 985 Exhibit A to Marana Resolution 2014-016 2013 Water Impact Fee Infrastructure Improvements Plan Town of Marana Municipal Water Department WestLand Resources, Inc. 7 Engineering and Environmental Consultants Q:\jobs\500's\527.01\Impact Fees\Water Impact fee Report\Final\2013 Report_022114.docx Service Area Zone Required Booster Capacity (gpm) Existing Booster Capacity (gpm) Excess Booster Capacity (gpm) Twin Peaks A Twin Peaks Y1 1,755 2,100 345 Twin Peaks Z1 1,159 2,085 926 Twin Peaks Total 2,914 4,185 1,271 Saguaro Bloom X1b 2,091 6,180 4,089 Palo Verde X1c 145 400 255 Airport X1c 2,768 4,500 1,732 Falstaff X1d 20 120 100 Total 18,327 30,005 11,678 6.4. EXISTING WELL CAPACITY Table 7 shows the existing well capacity and excess well capacity where available. The minimum requirement for wells is PDD with the largest well out of service. Table 7. Existing Well Capacity Service Area Zone Required Well Capacity (gpm) Existing Well Capacity (gpm) Largest Capacity Well (gpm) Net Well Capacity (gpm) Excess Well Capacity (gpm) North Marana W+ 1,252 2,665 960 1,705 431 North Marana X1a 22 North Marana X1d North Marana Y1 North Marana Total 1,274 2,665 1,705 431 Continental Reserve CR + SR 784 2,655 01 2,655 1,740 Continental Reserve PR 89 Continental Reserve Y3 42 Continental Reserve Total 915 2,655 2,655 1,740 Twin Peaks A 1,502 982 520 106 Twin Peaks Y1 255 Twin Peaks Z1 159 Twin Peaks Total 414 1,502 520 106 Saguaro Bloom X1b 91 2,107 1,152 955 864 Palo Verde X1c 23 245 245 0 0 Airport X1c 18 2,956 2,000 956 938 Falstaff X1d 0.38 56 56 0 0 Total 2,735 12,186 6,791 4,079 1. Redundant well not required because of Tucson Water Interconnect. Exhibit A to Marana Resolution 2014-016 2013 Water Impact Fee Infrastructure Improvements Plan Town of Marana Municipal Water Department WestLand Resources, Inc. 8 Engineering and Environmental Consultants Q:\jobs\500's\527.01\Impact Fees\Water Impact fee Report\Final\2013 Report_022114.docx 7. ESTIMATE OF EXISTING AND FUTURE EDU’S The future land use was calculated by using a GIS system to combine the information on development areas shown in Figure 2 with the service areas and pressure zones from Figure 1. Table 8 shows the calculated increase in dwelling units, commercial acres, and EDUs based on the assumed growth rates. It was assumed that each commercial acre has a water demand of four EDUs. Table 8. Growth in Dwelling Units, Commercial Acres, and EDUs Service Area Zone 10 Years Growth Dwelling Units Commercial Acres Equivalent Dwelling Units North Marana W+ 2,136 96 2,520 North Marana X1a 74 74 North Marana X1d 250 44 426 North Marana Y1 14 54 North Marana Total 2,460 154 3,074 Twin Peaks CR 379 3 391 Twin Peaks PR Twin Peaks Y3 Twin Peaks SR Twin Peaks A 11 1 13 Twin Peaks Y1 370 126 874 Twin Peaks Z1 267 6 293 Twin Peaks Total 1,028 136 1,572 Saguaro Bloom X1b 1,418 1,418 Palo Verde X1c Airport X1c 29 116 Falstaff X1d IGA 300 4 316 WA 48 48 Total 5,253 323 6,543 Table 9 shows the existing EDUs and the cumulative 10-year projected EDUs for each water pressure zone and each water service area. Table 9. 10-year Cumulative Equivalent Dwelling Units Service Area Zone Equivalent Dwelling Units Existing 10 Years North Marana W+ 3,265 5,785 North Marana X1a 57 131 North Marana X1d 426 North Marana Y1 54 North Marana Total 3,322 6,396 Exhibit A to Marana Resolution 2014-016 2013 Water Impact Fee Infrastructure Improvements Plan Town of Marana Municipal Water Department WestLand Resources, Inc. 9 Engineering and Environmental Consultants Q:\jobs\500's\527.01\Impact Fees\Water Impact fee Report\Final\2013 Report_022114.docx Service Area Zone Equivalent Dwelling Units Existing 10 Years Twin Peaks CR 2,013 2,404 Twin Peaks PR 233 233 Twin Peaks Y3 110 110 Twin Peaks SR 30 30 Twin Peaks A 13 Twin Peaks Y1 664 1,538 Twin Peaks Z1 415 708 Twin Peaks Total 3,465 5,037 Saguaro Bloom X1b 236 1,654 Palo Verde X1c 60 60 Airport X1c 47 163 Falstaff X1d 1 1 IGA 4 320 WA 48 Total 7,135 13,678 8. CAPITAL FACILITIES Table 10 shows the capital facilities required for each service area, the level of service, and the estimated growth in each area in EDUs. An EDU represents one single-family residence and one acre of commercial development is equivalent to four EDUs. Exhibit 1 shows the location of the proposed capital facilities. Table 10. Capital Facilities and 10-year Growth in EDUs Service Area Level of Service Capital Facilities Estimated 10-year Growth in EDUs North Marana See Section 4.0 San Lucas interconnect Upsize Tangerine Commercial reservoir and booster station W+ to X-zone booster station Marana Park well Marana Park reservoir Sanders 24-inch pipeline 3,074 Twin Peaks/Continental Reserve Integration See Section 4.0 Upsize reservoir and add booster station at Twin Peaks. Interconnect Twin Peaks and Continental Reserve Picture Rocks interconnect 1,572 Saguaro Bloom See Section 4.0 none 1,418 Palo Verde See Section 4.0 none 0 Airport See Section 4.0 none 116 Falstaff See Section 4.0 none 0 Table 11 shows the capital facilities and other expenses associate with the acquisition of water rights, the level of service, and the estimated 10-year growth. The cost of water rights acquisition is applied to all Exhibit A to Marana Resolution 2014-016 2013 Water Impact Fee Infrastructure Improvements Plan Town of Marana Municipal Water Department WestLand Resources, Inc. 10 Engineering and Environmental Consultants Q:\jobs\500's\527.01\Impact Fees\Water Impact fee Report\Final\2013 Report_022114.docx growth in the Marana service areas, and areas that are served by Tucson Water with water supplied by Marana either through an Intergovernmental Agreement (IGA) or a Wheeling Agreement (WA). There are two sources of water rights used in this study: Non-Indian Agricultural CAP Reallocation (NIA), and recharged wastewater. Table 11. Capital Facilities and 10-year Growth in EDUs (Water Resources) Service Area Level of Service Capital Facilities Estimated 10-year Growth in EDUs All Service Areas plus areas served by Tucson Water with water supplied by Marana with an IGA or WA. See Section 2.0 Purchase of NIA through ADWR. Construction of recharge basins at the Marana Water Reclamation Facility (WRF) One-half the cost of acquisition of the Marana WRF relating directly to the water rights acquired. 6,543 9. UTILIZATION OF PROPOSED AND EXISTING FACILITIES In this section, the projected utilization of existing and proposed facilities is presented. The first subsection presents the projected 10-year demand that is used to calculate utilization. In the existing water system, the Twin Peaks and Continental Reserve Service Areas are separate and distinct service areas. It is proposed, as part of the expansion needed for growth, that the two systems be connected to form one service area, which will be called the Twin Peaks Service Area. 9.1. PROJECTED FUTURE DEMAND Table 12 shows the ADD, PDD, and PHD based on the projected EDUs for each service area and zone. The demand accorded each EDU is based on the following assumptions: • 2.63 persons per dwelling unit (ppdu)(2010 Census) • 105 gallons per capita per day (gpcd), based on historical flows. • Average Day Demand (ADD) = 2.63 ppdu * 105 gpcd = 276.15 gpd/EDU • Peak Day Demand (PDD) = 2 * ADD • Peak Hour Demand (PHD) = 3.5* ADD (if ADD <= 1,000 gpm), or 3*ADD (otherwise); sometimes PHD is dependent on other instantaneous flow requirements. Exhibit A to Marana Resolution 2014-016 2013 Water Impact Fee Infrastructure Improvements Plan Town of Marana Municipal Water Department WestLand Resources, Inc. 11 Engineering and Environmental Consultants Q:\jobs\500's\527.01\Impact Fees\Water Impact fee Report\Final\2013 Report_022114.docx Table 12. Projected 10-year Demand Service Area Zone Average Day Demand (gpd) Peak Day Demand (gpm) Peak Hour Demand (gpm) North Marana W+ 1,597,614 2,219 3,328 North Marana X1a 36,133 50 115* North Marana X1d 117,529 163 286 North Marana Y1 14,912 21 36 North Marana Total 1,766,189 2,453 3,765 Twin Peaks A 3,693 5 9 Twin Peaks Y1 424,790 590 1,032 Twin Peaks Z1 195,546 272 475 Twin Peaks CR + SR 672,204 934 1,634 Twin Peaks PR 64,343 89 156 Twin Peaks Y3 30,377 42 173* Twin Peaks Total 1,390,954 1,932 3,480 Saguaro Bloom X1b 456,614 634 1,110 Palo Verde X1c 16,569 23 145* Airport X1c 45,012 63 109 Falstaff X1d 276 0.38 20* Total 3,675,614 5,105 8,647 *Peak Hour Demand based on instantaneous flow requirement 9.2. 10-YEAR STORAGE REQUIREMENTS Table 13 shows the 10-year projected storage requirements. Required storage capacity is equal to 1.5 times ADD plus 2 hours fire flow. Required fire flow varies by service area and water pressure zone. Table 13. 10-year Projected Storage Requirements Service Area Zone Required 2- hour Fire Flow (gpm) Required Storage (gallons) Existing Storage (gallons) Additional Required Storage Capacity (gallons) North Marana W+ 2,500 2,926,916 2,075,000 851,916 North Marana X1a 1,000 North Marana X1d 2,500 North Marana Y1 2,500 322,368 322,368 North Marana Total 3,249,284 2,075,000 1,174,284 Exhibit A to Marana Resolution 2014-016 2013 Water Impact Fee Infrastructure Improvements Plan Town of Marana Municipal Water Department WestLand Resources, Inc. 12 Engineering and Environmental Consultants Q:\jobs\500's\527.01\Impact Fees\Water Impact fee Report\Final\2013 Report_022114.docx Service Area Zone Required 2- hour Fire Flow (gpm) Required Storage (gallons) Existing Storage (gallons) Additional Required Storage Capacity (gallons) Twin Peaks A 1,500 2,220,866 (164,134) Twin Peaks Y1 1,500 185,000 Twin Peaks Z1 1,000 1,100,000 Twin Peaks CR + SR 1,500 1,000,000 Twin Peaks PR 700 100,000 Twin Peaks Y3 2,500 345,565 1,000,000 (654,435) Twin Peaks Total 2,566,431 3,385,000 (818,569) Saguaro Bloom X1b 2,000 924,921 1,940,000 (1,015,079) Palo Verde X1c 24,854 40,000 (15,147) Airport X1c 2,750 397,519 500,000 (102,481) Falstaff X1d 414 10,000 (9,586) Total 7,163,422 7,950,000 (786,578) 9.3. 10-YEAR BOOSTER STATION REQUIREMENTS Table 14 shows the 10-year projected booster station requirements. The required booster capacity is the greater of PDD plus fire flow or PHD. Table 14. 10-year Projected Booster Capacity Requirements Service Area Zone Required Booster Capacity (gpm) Existing Booster Capacity (gpm) Additional Required Booster Capacity (gpm) North Marana W+ 4,719 6,720 (2,001) North Marana X1a 1,050 1,300 (250) North Marana X1d 2,663 None 2,663 North Marana Y1 2,521 None 2,521 North Marana Total 10,953 8,020 2,933 Twin Peaks A 1,505 None 1,505 Twin Peaks Y1 2,090 2,100 (10) Twin Peaks Z1 1,772 2,085 (313) Twin Peaks CR + SR 2,434 2,500 (66) Twin Peaks PR 789 1,000 (211) Twin Peaks Y3 2,542 3,100 (558) Twin Peaks Total 11,132 10,785 347 Exhibit A to Marana Resolution 2014-016 2013 Water Impact Fee Infrastructure Improvements Plan Town of Marana Municipal Water Department WestLand Resources, Inc. 13 Engineering and Environmental Consultants Q:\jobs\500's\527.01\Impact Fees\Water Impact fee Report\Final\2013 Report_022114.docx Service Area Zone Required Booster Capacity (gpm) Existing Booster Capacity (gpm) Additional Required Booster Capacity (gpm) Saguaro Bloom X1b 2,634 6,180 (3,546) Palo Verde X1c 145 400 (255) Airport X1c 2,813 4,500 (1,687) Falstaff X1d 20 120 (100) Total 27,697 30,005 (2,308) 9.4. 10-YEAR WELL REQUIREMENTS Table 15 shows the 10-year projected well requirements. The minimum requirement for wells is PDD with the largest well out of service. Table 15. 10-year Projected Well Capacity Service Area Zone Required Well Capacity (gpm) Existing Well Capacity (gpm) Largest Capacity Well (gpm) Net Well Capacity (gpm) Additional Required Well Capacity (gpm) North Marana W+ 2,219 2,665 960 1,705 727 North Marana X1a 50 North Marana X1d 163 North Marana Y1 21 None None None 21 North Marana Total 2,453 2,665 1,705 748 Twin Peaks A 5 4,157 982 3,175 (1,243) Twin Peaks Y1 590 Twin Peaks Z1 272 Twin Peaks CR + SR 934 Twin Peaks PR 89 Twin Peaks Y3 42 Twin Peaks Total 1,932 4,157 982 3,175 (1,243) Saguaro Bloom X1b 634 2,107 1,152 955 (321) Palo Verde X1c 23 245 01 245 (222) Airport X1c 63 2,956 2,000 956 (893) Falstaff X1d 0.38 56 01 56 (56) Total 5,105 12,186 6,791 (1,987) 1. Current Level of Service requires one well with no backup well. 9.5. PROJECTED WATER RIGHT REQUIREMENTS The existing connections require approximately 2,207 acre-feet/year. The 10-year water rights Exhibit A to Marana Resolution 2014-016 2013 Water Impact Fee Infrastructure Improvements Plan Town of Marana Municipal Water Department WestLand Resources, Inc. 14 Engineering and Environmental Consultants Q:\jobs\500's\527.01\Impact Fees\Water Impact fee Report\Final\2013 Report_022114.docx requirements are based on the growth within each of the service areas plus the water supplied to Tucson Water through either an IGA or a WA. The projected demand including IGAs and WAs is approximately 4,231 acre-feet/year, or a projected increase of approximately 2,024 acre-feet/year. On average, each EDU requires approximately 0.31 acre-feet/year. 10. COST OF CAPITAL IMPROVEMENTS AND WATER RIGHTS ACQUISITION The following sections show the estimated cost of the proposed capital improvements for both water storage and delivery infrastructure, and costs associated with the acquisition of water rights. 10.1. WATER INFRASTRUCTURE This section contains the estimated capital costs for the North Marana Service Area and the Twin Peaks/Continental Reserve Service Area, and the costs and EDUs that can be served by existing infrastructure for the Saguaro Bloom, Palo Verde, Airport, and Falstaff Service Areas. Tables 16 and 17 show the estimated capital costs associated with the North Marana Service Area and the Twin Peaks/Continental Reserve Service Area. Appendix A contains a detailed cost breakdown for each improvement in the North Marana and Twin Peaks Service Areas. Reimbursements in Table 16 are an estimate of the connection credits that will be refunded to the development community from previous water service agreements. Exhibit A to Marana Resolution 2014-016 2013 Water Impact Fee Infrastructure Improvements Plan Town of Marana Municipal Water Department WestLand Resources, Inc. 15 Engineering and Environmental Consultants Q:\jobs\500's\527.01\Impact Fees\Water Impact fee Report\Final\2013 Report_022114.docx Table 16. North Marana Service Area Capital Improvement Costs Capital Improvement Capital Costs by Year 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 Reimbursements $22,250 $22,250 $22,250 $22,250 $22,250 $22,250 $22,250 $22,250 $22,250 $22,250 San Lucas Interconnect $705,000 Upsize Tangerine Commercial Reservoir $200,000 Upsize Tangerine Commercial Booster Station $100,000 W+ to X-zone 3,000 gpm Booster Station $1,000,000 Marana Park 650 gpm Well $607,000 Marana Park 700,000 gallon Reservoir $1,200,000 Sanders 24-inch Pipeline $2,000,000 Total $322,250 $727,250 $1,022,250 $629,250 $22,250 $22,250 $1,222,250 $2,022,250 $22,250 $22,250 Table 17. Twin Peaks/Continental Reserve Service Area Capital Improvement Costs Capital Improvement Capital Costs by Year 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 Upsize Twin Peaks Reservoir $200,000 Twin Peaks Booster Station $325,000 24” Twin Peaks/Continental Reserve Interconnect $1,650,000 Picture Rocks Interconnect $827,000 Total $3,002,000 Exhibit A to Marana Resolution 2014-016 2013 Water Impact Fee Infrastructure Improvements Plan Town of Marana Municipal Water Department WestLand Resources, Inc. 16 Engineering and Environmental Consultants Q:\jobs\500's\527.01\Impact Fees\Water Impact fee Report\Final\2013 Report_022114.docx In the Saguaro Bloom, Palo Verde, Airport, and Falstaff Service areas, there is sufficient capacity for anticipated growth in the planning period. Impact fees for these areas are based entirely on existing facilities. The following relationships were used to determine the capacity of each element of the infrastructure in EDUs: • Storage (w/ Fire Flow) = 1.5 ADD + 25% (1.5 ADD) • Storage (w/o Fire Flow) = 1.5 ADD • Well = PDD • Booster Station (w/ Fire Flow) = PHD + 25%(PHD) • Booster Station (w/o Fire Flow) = PHD The value of existing infrastructure is based on the cost to construct facilities. A reference size is used for each type of facility and the above relationships were used to determine how many EDUs the reference size could support. For example, the reference well is 1,000 gpm, and the cost for a 1,000 gpm well is estimated to be $1,250,000. The well is required to supply PDD, and based on the relationships above, a 1,000 gpm well will support 2,607 EDUs; therefore, the cost per EDU is $479. Table 18 shows the reference size and cost for each facility. Table 18. Estimated Cost of Reference Facilities Facility Reference Size Reference Cost EDUs Served Cost per EDU Storage w/o Fire Flow 200,000 gal $200,000 483 $414 Storage w/ Fire Flow 250,000 gal $250,000 483 $518 Well 1,000 gpm $1,250,000 2,607 $479 Booster w/o Fire Flow 500 gpm $200,000 1,304 $153 Booster w/ Fire Flow 500 gpm $200,000 1,043 $192 The cost per EDU depends on whether or not fire flow is required for the service area. Table 19 shows the breakdown of costs by infrastructure component for service areas with and without fire flow requirements. Table 19. Estimated Value of Existing Infrastructure Fire Flow Cost per EDU Reservoir Well Booster Total No Fire Flow $414 $479 $153 $1,046 w/ Fire Flow $518 $479 $192 $1,189 Table 20 shows the impact fee for each of service areas, based on the values in Table 18. Table 20. Estimated Impact Fees for Saguaro Bloom, Palo Verde, Airport, and Falstaff Service Areas Service Area Fire Flow Requirements Impact Fee/EDU North Marana Yes See note Twin Peaks Yes See note Saguaro Bloom Yes $1,189 Palo Verde No $1,046 Airport Yes $1,189 Falstaff No $1,046 Note: In the service areas noted, the value of excess existing infrastructure will not be included in impact fees for future growth. Exhibit A to Marana Resolution 2014-016 2013 Water Impact Fee Infrastructure Improvements Plan Town of Marana Municipal Water Department WestLand Resources, Inc. 17 Engineering and Environmental Consultants Q:\jobs\500's\527.01\Impact Fees\Water Impact fee Report\Final\2013 Report_022114.docx 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 impact fee. The additional fee was $750 per EDU in 2001, and has increased by 3 percent per year every year after. Table 21 shows the fee over the next 10 years to the nearest dollar. Table 21. Additional Section 23 Fees by Year Year Section 23 Fee Year Section 23 Fee 2014 $1,101 2019 $1,277 2015 $1,134 2020 $1,315 2016 $1,168 2021 $1,355 2017 $1,204 2022 $1,395 2018 $1,240 2023 $1,437 10.2. WATER RIGHTS ACQUISITION There are two sources of water rights foreseen in the next 10 years: Central Arizona Project (CAP) Non- Indian Agricultural Reallocation (NIA), and recharged wastewater. Costs for recharged wastewater include the cost to build recharge basins and one-half the cost to purchase the Marana Water Reclamation Facility (WRF). The Marana WRF was acquired from Pima County to help the Town meet its source water requirements. Existing customers have already paid for capacity in the plant, and future customers will pay for unused existing capacity. Although the headworks and secondary treatment were limited to about 0.38 mgd when the plant was purchased, there is unused capacity in several areas. The existing WRF has a permitted capacity of 3.5 mgd, a tertiary treatment capacity of 3.5 mgd, and has the land area required for the treatment of 3.5 mgd. Since the Marana WRF was acquired primarily for the source water resource, future water customers will pay for one-half the cost of the acquisition annuity, and future sewer customers will pay for one-half the acquisition annuity. Table 22 shows the plant acquisition annuity and the portion of the acquisition annuity devoted to new water customers over the next ten years. Table 22 also shows the projected quantity of water that will be recharged each year. Table 22. Annuity for acquisition of the Marana WRF Year Plant Acquisition Annuity Portion of Plant Acquisition Annuity Devoted to New Water Customers. Projected Water Recharge (acre-feet) 2013 418 2014 460 2015 502 2016 $1,807,725 $903,863 559 2017 $1,809,525 $904,763 644 2018 $1,809,925 $904,963 731 2019 $1,808,925 $904,463 834 Exhibit A to Marana Resolution 2014-016 2013 Water Impact Fee Infrastructure Improvements Plan Town of Marana Municipal Water Department WestLand Resources, Inc. 18 Engineering and Environmental Consultants Q:\jobs\500's\527.01\Impact Fees\Water Impact fee Report\Final\2013 Report_022114.docx Year Plant Acquisition Annuity Portion of Plant Acquisition Annuity Devoted to New Water Customers. Projected Water Recharge (acre-feet) 2020 $1,810,550 $905,275 951 2021 $1,807,150 $903,575 1,084 2022 $1,812,350 $906,175 1,232 2023 $1,810,750 $905,375 1,395 Total $14,476,900 $7,238,450 The Town was awarded 515 acre-feet of NIA water rights at a cost of $1,288 per acre-foot. The total cost of the NIA water rights is $663,320, which is spread over five years from 2015 through 2019. Table 23 shows all of the costs associated with water rights over the next ten years. Table 23. Water Rights Acquisition Capital Costs by Year Year One-half Treatment Plant Annuity Recharge CAP Non-Indian Agricultural Reallocation Total CIP 2014 $1,300,000 $1,300,000 2015 $132,664 $132,664 2016 $903,863 $132,664 $1,036,527 2017 $904,763 $132,664 $1,037,427 2018 $904,963 $132,664 $1,037,627 2019 $904,463 $132,664 $1,037,127 2020 $905,275 $905,275 2021 $903,575 $903,575 2022 $906,175 $906,175 2023 $905,375 $905,375 Total $7,238,450 $1,300,000 $663,320 $9,201,770 Exhibit A to Marana Resolution 2014-016 FIGURES Exhibit A to Marana Resolution 2014-016 TRICO RDTWIN PEAKS RD COCHIE CANYON TR SIL V E R B E L L R D MARANA RD AVRA VALLEY RD QUARRY RDGRIER RD SANDARIO RDTANGERINE RD GARVEY RDSAGEBRUSH RD WENTZ RDINA RDSCENIC DRTRICO MARANA RD BARNETT RD CAMINO DE MANANA SANDERS RDDO V E M O U N T A I N B L KIRBY HUGHES RD OWL HEAD RANCH RDLINDA VISTA BL HARDIN RD OASIS RD C L A Y T O N R DLUCKETT RDPATTON RDTA N G E R I N E F A R M S R D SHANNON RDAVRA RDSUNSET RD THORNYDALE RDEL PA S O G A S R D CAMINO DE OESTE WONG WY PINAL AIRPARK RD CORTARO RDPOSTVALE RDWASSON AV BLUE BONNET RDS I L V E R B E L L R D CAMINO DE MANANA TANGERINE FARMS RDLUCKETT RDMOORE RD SI L V E R B E L L R DSANDARIO RDSANDERS RDHARDIN RD North Marana Airport Palo Verde Saguaro Bloom Continental Reserve Twin Peaks Falstaff W+ X1c Y1 Y2 X1d A X1b Z1 C B X1a CR PR V Y3 Z2 Y1 SR Z2 Copyright:© 2009 ESRI, i-cubed, GeoEye Legend Marana Town Limits Pima/Pinal County Line Pressure Zone Boundaries Existing Water Mains Marana Water Service Areas DisplayNam Airport Continental Reserve Falstaff North Marana Palo Verde Saguaro Bloom Twin Peaks Tucson Water Agreement Areas Intergovernmental Agreement Wheeling Agreement M:\projects\527.01\2012 Impact Fee\MXD\2013 Report\Water System & Zones.mxd 0 1 20.5 Miles ³ §¨¦10 §¨¦10 Marana Water Service Areas and Pressure Zone Boundaries Pinal County Pima County 2013 WATER IMPACT FEE ANALYSIS Figure 1 Exhibit A to Marana Resolution 2014-016 TWIN PEAKS RD COCHIE CANYON TR SIL V E R B E L L R D MARANA RD AVRA VALLEY RD QUARRY RDGRIER RD SANDARIO RDTANGERINE RD GARVEY RDSAGEBRUSH RD WENTZ RDINA RDSCENIC DRTRICO MARANA RD BARNETT RD CAMINO DE MANANA SANDERS RDDO V E M O U N T A I N B L KIRBY HUGHES RD OWL HEAD RANCH RDLINDA VISTA BL HARDIN RD OASIS RD C L A Y T O N R DLUCKETT RDPATTON RDTA N G E R I N E F A R M S R D SHANNON RDAVRA RDTHORNYDALE RDEL PA S O G A S R D CAMINO DE OESTE WONG WY CORTARO RDPOSTVALE RDWASSON AV BLUE BONNET RDCAMINO DE MANANA TANGERINE FARMS RDLUCKETT RDMOORE RD SI L V E R B E L L R DSANDARIO RDSANDERS RDHARDIN RD Rancho Marana Town Center Barrios de Marana Marana Main St. Payson Farms Fianchetto Farms Whitney Farms Hartman 59 Willow Ridge Custom Tortolita Reserve Sky Ranch II Ina & Silverbell Marana Mercantile Cypress Gardens Lazy K Cortaro Crossing Saguaro Ranch Airport Dove Mountain Cascada Continental Ranch The Villages of Tortolita Pima Farms Sanders Grove Gladden Farms Sky Ranch Tapestry Gladden Farms II Vanderbilt Farms Saguaro Bloom Mandarina San Lucas Tangerine Crossing Marana Towne Center Tangerine Commerce Park De Anza Shops at Tangerine Marana Spectrum Tortolita Vistas Rancho Marana Uptown at Marana Cascada North Pima Farms North Anway Farms Tangerine Business ParkHonea Heights III Casa Sevilla Tangerine Thornydale The Estate Lots at Tortolita Preserve Marana Gardens Copyright:© 2009 ESRI, i-cubed, GeoEye Legend Marana Town Limits Pima/Pinal County Line Development Areas Airport Anway Farms Barrios de Marana Casa Sevilla Cascada Cascada North Continental Ranch Pima Farms Cortaro Crossing Cypress Gardens De Anza Dove Mountain Fianchetto Farms Gladden Farms Gladden Farms II Hartman 59 Honea Heights III Ina & Silverbell Lazy K Mandarina Marana Gardens Marana Main St. Marana Mercantile Marana Spectrum Marana Towne Center Payson Farms Pima Farms North Rancho Marana Rancho Marana Town Center Saguaro Bloom Saguaro Ranch San Lucas Sanders Grove Shops at Tangerine Sky Ranch Sky Ranch II Tangerine Business Park Tangerine Commerce Park Tangerine Crossing Tangerine Thornydale Tapestry The Estate Lots at Tortolita Preserve The Villages of Tortolita Tortolita Reserve Tortolita Vistas Uptown at Marana Vanderbilt Farms Whitney Farms Willow Ridge Custom 0 1 20.5 Miles ³ §¨¦10 §¨¦10 Development Areas Pinal County Pima County 2013 WATER IMPACT FEE ANALYSIS Figure 2 M:\projects\527.01\2012 Impact Fee\mxd\2013 Report\Growth Projections Exhibit A to Marana Resolution 2014-016 EXHIBIT 2013 POTABLE WATER IMPACT FEE EVALUATION WATER SERVICE AREAS Exhibit A to Marana Resolution 2014-016 TOWN OF MARANA 2013 POTABLE WATER IMPACT FEE EVALUATION WATER SERVICE AREAS Exhibit A to Marana Resolution 2014-016 APPENDIX A OPINIONS OF PROBABLE CONSTRUCTION COST AND SITE PLANS Exhibit A to Marana Resolution 2014-016 WestLand Resources, Inc. Engineering and Environmental Consultants W:\jobs\500's\527.01\2013 impact fee\2013 Water infrastructure Impact Fees_112613\OPCC Recharge Basins_022014 Project Name:Prepared by:SLO Date:2/20/2014 Checked by:TAM Date:2/20/2014 Client:Town of Marana Marana WRF Phase 1 Recharge Concept Item No.Unit Quantity Unit Price Amount 1 LF 1,690 $50 $84,500 2 CY 30,250 $4 $121,000 3 LF 1,870 $125 $233,750 4 EA 1 $60,000 $60,000 5 LF 150 $125 $18,750 6 LS 1 $100,000 $100,000 7 LS 1 $50,000 $50,000 8 LS 1 $15,000 $15,000 9 EA 5 $6,000 $30,000 10 EA 1 $60,000 $60,000 11 CY 645 $35 $22,575 12 SY 110 $36 $3,960 $799,535 $159,907 $119,930 LS 1 $200,000 $200,000 $1,279,372 Recharge Master Plan 18-inch Distribution Pipeline SDR 35 TOTAL PROJECT COSTS SCADA and Control Equipment Landscaping and Irrigation L/S Parking area/Re-seed Basin area Riprap d50=6", Th=2D50 with Filter Fabric Design and Construction Management (15%) Subtotal Contingencies (20%) Control Stucture 10'x10' concrete (precast) 18-inch Delivery Pipeline Item Description Remarks Site Fencing Chain link with barbwire Earthwork Cut material, grading, 5'wide x 1' high berm around top of basins SDR 35 Description: Marana Water Resources Project No.:527.60 Location:Marana, Arizona Compacted AB Roadway/parking 6-inch on compacted surface Clear and Grub 5-foot Manholes 8-foot Dia. Concrete Flow Control Structure Exhibit A to Marana Resolution 2014-016 Exhibit A to Marana Resolution 2014-016 Exhibit A to Marana Resolution 2014-016 Exhibit A to Marana Resolution 2014-016 Exhibit A to Marana Resolution 2014-016 Exhibit A to Marana Resolution 2014-016 Exhibit A to Marana Resolution 2014-016 Exhibit A to Marana Resolution 2014-016 Exhibit A to Marana Resolution 2014-016 Exhibit A to Marana Resolution 2014-016 Exhibit A to Marana Resolution 2014-016 Exhibit A to Marana Resolution 2014-016 Exhibit A to Marana Resolution 2014-016 Exhibit A to Marana Resolution 2014-016 Exhibit A to Marana Resolution 2014-016 Exhibit A to Marana Resolution 2014-016 Exhibit A to Marana Resolution 2014-016 Exhibit A to Marana Resolution 2014-016 Exhibit A to Marana Resolution 2014-016 APPENDIX B MARANA AND ORO VALLEY WATER SERVICE OVERLAP AREA Exhibit A to Marana Resolution 2014-016 Exhibit A to Marana Resolution 2014-016 2013 SEWER IMPACT FEE INFRASTRUCTURE IMPROVEMENT PLAN TOWN OF MARANA Prepared for : Town ofMarana 5100 West Ina Road Marana, Ar izona 85743 Prepared by: Westland Reso urces. lnc. En gineer in g and Environmen ta l Consultants 400 I E. Paradise Falls Drive Tucson , Arizona 857 12 February 2014 Project No. 527.01 Exhibit B to Marana Resolution 2014-016 2013 Sewer Impact Fee In frastructure Improvement Plan Town ofMarana Uti lities Department TABLE OF CONTENTS 1. INTRODUCTIO N ................................................................................................................................. I 2. SERVICE AREAS ................................................................................................................................ 1 3. 10-YEAR LAND USE ASSUMPTIONS .............................................................................................. I 4. LEVEL OF SERVIC E FOR EX ISTING SERVICE AREAS ............................................................... 3 5. LEVEL OF SERVICE FOR FUTURE SERVICE AREAS .................................................................. 3 6. EXISTING CAPACITY ........................................................................................................................ 3 7. ESTIMATE OF EXISTI NG AND FUTU RE EDU'S ........................................................................... 4 8. CAPITAL FACILITIES ........................................................................................................................ 6 9. UTILIZATION OF PROPOSED AND EX ISTING FACILITIES ....................................................... 6 10. COST OF CAPITAL IMPROVEMENTS ............................................................................................ 7 Table 1. Table 2. Table 3. Table4. Table 5. Table 6. Table 7. Table 8. Table 9 . Table 10. Table 11. Table 12. TABLES Town of Marana Growth Projections by Development.. ........................................................... I Existing E quivalent Dwelling Un its ......................................................................................... .4 Equivalent Dwellin g Unit Meter Factors .................................................................................. .4 Existing Flows and Capacity of the Marana WRF ................................................................... .4 Estimates of Existing and I 0-year E D Us .................................................................................. 5 Estimates of Existing and 10-year EDUs by Treatment System ............................................... 5 Running Balance of Marana WRF demands and capacity ........................................................ 5 Cap ital Faci liti es and 10-year Growth in EDUs ........................................................................ 6 Utilization of Proposed and Existing Facilities ......................................................................... 7 Annuity for acq uisition of the Marana WRF ............................................................................. 7 Costs for upgrades to the Marana WRF and the conveyance system ........................................ 8 Marana WRF Ca pital Improvement Costs ................................................................................. 8 FIGURES ifollow text) Figure 1. Marana DMA and Sewer Basins Figure 2. Development Area s WestLand Resources, Inc. Engmeering and Enwonmenlal Consultant s Q ljobs1500"sl52 7.0 1\lmpact Fecs\Scwcr Impact fee Report\Final Rcport\Rcport_02 171 4 docx 11 Exhibit B to Marana Resolution 2014-016 2013 Sewer Impact Fee Infrastructure Improvement Plan Town of Marana Utilities Department WestLand Resources, Inc. 1 Engineering and Environmental Consultants Q:\jobs\500's\527.01\Impact Fees\Sewer Impact fee Report\Final Report\Report_021714.docx 1. INTRODUCTION The Town of Marana (Town) is the Designated Management Agency (DMA) to provide wastewater service for the DMA area shown in Figure 1. The Town serves approximately 5,000 people and has approximately 2,100 residential and commercial accounts within the DMA area. Currently, the Town operates two Water Reclamation Facilities (WRF): the Marana WRF and the Rillito Vista WRF. The Town also operates a collection system that consists of approximately 40 miles of gravity sewer. The purpose of the impact fee study is to determine the capital improvements that are required to meet the next ten year’s growth for each benefit area. 2. SERVICE AREAS Figure 1 shows the DMA area that is served by the Town, and the 19 sewer basins that were used in the study. Figure 1 also shows the Saguaro Bloom development area, which is currently not within the Town’s DMA area, but is assumed to be in the future. The impact fee study is based on a single Service Area comprising the Marana DMA plus Saguaro Bloom. Figure 1 also shows the Town’s existing sewer collection system and WRFs. The Marana WRF serves the majority of the Town’s customers, and the Rillito Vista WRF serves about 60 Residences at this time. During the next ten years the Rillito Vista WRF is assumed to be retired and the flows will go to the Marana WRF. Areas within the Town but outside the DMA are currently served by Pima County. 3. 10-YEAR LAND USE AS SUMPTIONS The Town has prepared Land Use Assumptions: Public Report, February 11, 2014. A summary of the growth projections for the planning period are shown by development area in Table 1. The location of each development area is shown in Figure 2. Table 1 includes the projected number of dwelling units and commercial acres projected within 10 years. The fourth column shows the number of Equivalent Dwelling Units (EDU) for each development, where an EDU represents the amount of wastewater produced by one residential dwelling unit. The final column shows the sewer service provider for each development. A significant fraction of the growth occurs in areas served by Pima County or that will be served by on-site systems. Table 1. Town of Marana Growth Projections by Development Development 10 Years Growth Sewer Service Provider Dwelling Units Commercial Acres Equivalent Dwelling Units Airport 0 29 116 Marana Aerie Apartments 411 0 411 Pima County Anway Farms 0 0 0 Marana Barrios De Marana 63 4 79 Marana Exhibit B to Marana Resolution 2014-016 2013 Sewer Impact Fee Infrastructure Improvement Plan Town of Marana Utilities Department WestLand Resources, Inc. 2 Engineering and Environmental Consultants Q:\jobs\500's\527.01\Impact Fees\Sewer Impact fee Report\Final Report\Report_021714.docx Development 10 Years Growth Sewer Service Provider Dwelling Units Commercial Acres Equivalent Dwelling Units Casa Sevilla 48 0 48 Pima County Cascada 322 17 389 Pima County Cascada North 0 0 0 Pima County Continental Ranch 237 49 433 Pima County Cortaro Crossing 0 10 41 Pima County Cypress Gardens 165 0 165 Marana De Anza 233 0 233 Pima County Dove Mountain 833 20 912 Pima County Fianchetto Farms 97 0 97 Marana Gladden Farms 648 18 720 Marana Gladden Farms II 211 0 211 Marana Hartman 59 59 0 59 Pima County Honea Heights III 0 0 0 Marana Ina/Silverbell 41 0 41 Pima County Lazy K 180 0 180 Pima County Mandarina 250 22 336 Marana Marana Gardens 0 0 0 Marana Marana Main St. 0 14 56 Marana Marana Mercantile 0 31 125 Marana Marana Spectrum 0 106 423 Pima County Marana Towne Center 92 13 144 Marana Payson Farms 37 0 37 Marana Pima Farms 0 3 12 Pima County Pima Farms North 199 0 199 Pima County Rancho Marana 0 0 0 Marana Rancho Marana Town Center 0 10 40 Marana Saguaro Bloom 1,418 0 1,418 Marana Saguaro Ranch 10 0 10 On-site San Lucas 267 0 267 Marana Sanders Grove 113 0 113 Marana Shops At Tangerine 0 0 0 Marana Sky Ranch 42 0 42 Pima County Tangerine Business Park 0 14 54 On-site Tangerine Commerce Park 0 22 90 Marana Tangerine Crossing 0 10 40 Pima County Tangerine Thornydale 50 4 64 Pima County Tapestry 120 0 120 Pima County Exhibit B to Marana Resolution 2014-016 2013 Sewer Impact Fee Infrastructure Improvement Plan Town of Marana Utilities Department WestLand Resources, Inc. 3 Engineering and Environmental Consultants Q:\jobs\500's\527.01\Impact Fees\Sewer Impact fee Report\Final Report\Report_021714.docx Development 10 Years Growth Sewer Service Provider Dwelling Units Commercial Acres Equivalent Dwelling Units The Estate Lots At Tortolita Preserve 4 0 4 Pima County The Villages Of Tortolita 0 0 0 Marana Tortolita Reserves 79 0 79 Pima County Tortolita Vistas 116 0 116 Pima County Uptown At Marana 47 6 71 Marana Vanderbilt Farms 460 0 460 Marana Whitney Farms 12 0 12 Marana Willow Ridge Customs 35 0 35 Pima County Total 6,895 401 8,498 4. LEVEL OF SERVICE FOR EXISTING SERVICE AREAS For its existing customers, Marana Utilities Department provides sewer collection, purification and disinfection of collected wastewater. The collection system is designed to carry peak wet-weather flow (PWWF). The treatment systems are designed to treat average dry-weather flow (ADWF) for the peak month, but hydraulically designed for PWWF. Existing facilities currently owned and operated by the Town include two wastewater reclamation facilities: the Marana WRF including sand filters and UV disinfection designed and permitted for 3.5 million gallons per day (mgd), and the Rillito Vista WRF lagoon system serving 60 EDUs. The conveyance system comprises approximately 40 miles of gravity mains and approximately 850 manholes. 5. LEVEL OF SERVICE FOR FUTURE SERVICE AREAS The level of service in terms of the wastewater system engineering design criteria will be the same as stated above for all service areas. 6. EXISTING CAPACITY Table 2 shows the existing number of EDUs in each service area and pressure zone. Each EDU represents the amount of water used by one residential dwelling unit. Table 2 below shows the number of existing EDUs in each sewer basin. Figure 1 shows the location of the sewer basins. Exhibit B to Marana Resolution 2014-016 2013 Sewer Impact Fee Infrastructure Improvement Plan Town of Marana Utilities Department WestLand Resources, Inc. 4 Engineering and Environmental Consultants Q:\jobs\500's\527.01\Impact Fees\Sewer Impact fee Report\Final Report\Report_021714.docx Table 2. Existing Equivalent Dwelling Units Sewer Basin Equivalent Dwelling Units Notes 5 628 Tributary to Marana WRF 10 1,367 Tributary to Marana WRF 13 47 Currently treated by on-site systems 14 60 Tributary to Rillito Vista WRF Total 2,102 The EDUs in Table 2 are based on the number of connections and the meter size. Table 3 shows the number of EDUs assigned to each meter size. Table 3. Equivalent Dwelling Unit Meter Factors Meter Size (inches) EDU Ratio 5/8 x 3/4 1.0 3/4 1.2 1 2.5 1.5 5.0 2 8.0 3 15.0 4 25.0 6 50.0 8 80.0 The wastewater flow accorded each EDU is based on the assumption that each EDU will produce 187.2 ADWF, as per Arizona Department of Environmental Quality (ADEQ) guidance. Table 4 shows the existing wastewater flows calculated from the existing connection, the meter sizes, and the assumptions listed above for the Marana WRF. Table 4. Existing Flows and Capacity of the Marana WRF Total EDUs Tributary to Marana WRF Marana WRF ADWF (gpd) Marana WRF Physical Capacity (gpd) Marana WRF Excess Capacity (gpd) 1,995 373,000 380,000 7,000 7. ESTIMATE OF EXISTING AND FUTURE EDU’S The future land use was calculated by using a GIS system to combine the information on development areas shown in Figure 2 with the sewer basins shown in Figure 1. Table 5 shows the existing and the estimated 10-year EDUs. Exhibit B to Marana Resolution 2014-016 2013 Sewer Impact Fee Infrastructure Improvement Plan Town of Marana Utilities Department WestLand Resources, Inc. 5 Engineering and Environmental Consultants Q:\jobs\500's\527.01\Impact Fees\Sewer Impact fee Report\Final Report\Report_021714.docx Table 5. Estimates of Existing and 10-year EDUs Sewer Basin Existing EDUs 10-year Growth EDUs 10-year Cumulative EDUs Tributary to in 10 years 5 628 1,058 1,686 Marana WRF 10 1,367 1,741 3,1081 Marana WRF 11 0 336 336 Marana WRF 13 47 116 163 Airport On-site System 14 60 44 104 Marana WRF, currently Rillito Vista 15 0 54 54 Tangerine Commercial On-site System2 18 0 1,418 1,418 Marana WRF Notes: 1. Includes 160 existing Honea Heights EDUs to be connected 2. Tangerine Commercial On-site is a private, commercial septic system. Table 6 shows the existing and estimate of 10-year EDUs for each treatment system. Table 6. Estimates of Existing and 10-year EDUs by Treatment System Treatment System Existing EDUs 10-year Growth EDUs 10-year Cumulative EDUs Marana WRF 1,995 4,6571 6,652 Airport On-site System 47 116 163 Tangerine Commercial On-site System2 0 54 54 Rillito Vista 60 1. Includes 60 existing EDUs from Rillito Vista 2. Tangerine Commercial is proposed to be a private, commercial septic system Table 7 shows a running balance of projected EDUs, projected sewer demand, and projected Marana WRF capacity for the system tributary to the Marana WRF. Table 7. Running Balance of Marana WRF demands and capacity Year Existing EDUs tributary to Marana WRF Projected Growth of EDUs tributary to Marana WRF Rillito Vista EDUs Transferred to Marana WRF Cumulative EDUs Projected Treatment Plant Capacity Required (mgd) Projected Treatment Plant Capacity (mgd) 2013 1,995 1,995 0.37 0.37 2014 200 2,195 0.41 0.5 2015 200 2,395 0.45 0.5 2016 272 2,667 0.50 0.5 2017 344 60 3,071 0.57 1.5 2018 416 3,487 0.65 1.5 2019 489 3,976 0.74 1.5 2020 561 4,537 0.85 1.5 2021 633 5,170 0.97 1.5 2022 705 5,875 1.10 1.5 Exhibit B to Marana Resolution 2014-016 2013 Sewer Impact Fee Infrastructure Improvement Plan Town of Marana Utilities Department WestLand Resources, Inc. 6 Engineering and Environmental Consultants Q:\jobs\500's\527.01\Impact Fees\Sewer Impact fee Report\Final Report\Report_021714.docx Year Existing EDUs tributary to Marana WRF Projected Growth of EDUs tributary to Marana WRF Rillito Vista EDUs Transferred to Marana WRF Cumulative EDUs Projected Treatment Plant Capacity Required (mgd) Projected Treatment Plant Capacity (mgd) 2023 777 6,652 1.25 1.5 8. CAPITAL FACILITIES Table 8 shows the capital facilities required for the Marana WRF Tributary Benefit Area. The capital facilities include improvements to the conveyance system and improvements to the Marana WRF. The conveyance system improvements are limited to the pressure sewer to relieve Saguaro Bloom. Additional improvements may be required in Clark Farms Blvd. to split flows. Improvements in Clark Farms Blvd. are assumed incidental to the Saguaro Bloom relief system and are not included in this study. The first phase of Marana WRF improvements will bring the plant up to 0.5 mgd by modifying the headworks and the clarifiers, adding a fourth blower, and replacing the diffusers in the Biolac basin. In the second phase, the system will be expanded to 1.5 mgd with new headworks, a second Biolac or similar secondary treatment component, new clarifiers, and solids handling facilities. Table 8. Capital Facilities and 10-year Growth in EDUs. Benefit Area Level of Service Capital Facilities Estimated 10-year Growth in EDUs All connections tributary to the Marana WRF including Saguaro Bloom See Section 2.0 Upgrades to Marana WRF to bring capacity to 0.5 mgd. 4,597* Marana WRF expansions to 1.5 mgd. One-half Treatment Plant Annuity. New Saguaro Bloom force main, and modify Saguaro Bloom existing lift station. Sewer augmentation to convey flows thru existing system, and conveyance upsizing reimbursement. *Growth does not include 60 EDUs from Rillito Vista. 9. UTILIZATION OF PROPOSED AND EXISTING FACILITIES The Marana WRF was acquired from Pima County in 2013 with a permitted capacity of 3.5 mgd. The land area and tertiary treatment components at the site will accommodate in excess of 3.5 mgd of wastewater treatment capacity as defined in the permits, per the existing and proposed level of service. All capital expansions and one-half of the acquisition expense are allocated as growth expenses in the 10- year planning window. Table 9 below shows the estimated 10-year EDUs, the flows that are expected to generated by those EDUs, and the utilization of capital facilities. Exhibit B to Marana Resolution 2014-016 2013 Sewer Impact Fee Infrastructure Improvement Plan Town of Marana Utilities Department WestLand Resources, Inc. 7 Engineering and Environmental Consultants Q:\jobs\500's\527.01\Impact Fees\Sewer Impact fee Report\Final Report\Report_021714.docx Table 9. Utilization of Proposed and Existing Facilities Capital Facility Total Facility Capacity Capacity for new connections Growth in EDUs Marana WRF upgrades and expansion. 1.5 mgd 1.13 mgd 4,597 Collection system augmentation. 1.5 mgd 1.13 mgd 4,597 10. COST OF CAPITAL IMPROVEMENTS The projected capital improvement costs have four major components: 1. One-half of the Marana WRF annuity, 2. Expansion of the Marana WRF, 3. Improvements to the conveyance system, and 4. Reimbursements. The Marana WRF was acquired from Pima County to help the Town meet its source water requirements. Existing customers have already paid for capacity in the plant, and future customers will pay for unused existing capacity. Although the headworks and secondary treatment were limited to about 0.38 mgd when the plant was purchased, there is unused capacity in several areas. The existing WRF has a permitted capacity of 3.5 mgd, a tertiary treatment capacity of 3.5 mgd, and has the land area required for the treatment of 3.5 mgd. Since the Marana WRF was acquired primarily for the source water resource, future water customers will pay for one-half the cost of the acquisition annuity, and future sewer customers will pay for one-half the acquisition annuity. Table 10 shows the plant acquisition annuity and the portion of the acquisition annuity devoted to new sewer customers over the next ten years. Table 10. Annuity for acquisition of the Marana WRF. Year Plant Acquisition Annuity Portion of Plant Acquisition Annuity Devoted to New Sewer Customers. 2013 2014 2015 2016 $1,807,725 $903,863 2017 $1,809,525 $904,763 2018 $1,809,925 $904,963 2019 $1,808,925 $904,463 2020 $1,810,550 $905,275 2021 $1,807,150 $903,575 2022 $1,812,350 $906,175 2023 $1,810,750 $905,375 Total $14,476,900 $7,238,450 Exhibit B to Marana Resolution 2014-016 2013 Sewer Impact Fee Infrastructure Improvement Plan Town of Marana Utilities Department WestLand Resources, Inc. 8 Engineering and Environmental Consultants Q:\jobs\500's\527.01\Impact Fees\Sewer Impact fee Report\Final Report\Report_021714.docx Table 11 shows the projected improvements and costs for improvements to the Marana WRF and conveyance system. The initial Marana WRF improvements will bring the plant capacity up to 0.5 mgd from 0.38 mgd. The remaining improvements will bring the Marana WRF from 0.5 mgd to 1.5 mgd. Table 11. Costs for upgrades to the Marana WRF and the conveyance system Year Cost Description 2013 $1,000,000 Upgrade clarifier curtains, add one blower, upgrade diffusers, modify headworks and screening. These upgrades increase the secondary treatment capacity from 0.38 mgd to 0.5 mgd. 2015 $1,000,000 Design and permitting of expansion to 1.5 mgd from 0.5 mgd. 2016 $2,000,000 Conveyance system improvements. 2016 $9,000,000 Upgrade Marana WRF from 0.5 mgd to 1.5 mgd. 2020 $1,000,000 Install permanent solids handling facilities. From 2014 to 2023 there is an estimated annual reimbursement $30,300. The reimbursement is to pay developers for past conveyance system upsizing to support future growth. Table 12 shows the cost the capital improvements to construct wastewater facilities to support the 10-year growth projections. Table 12. Marana WRF Capital Improvement Costs Year Portion of Capacity Treatment Plant Annuity Marana WRF Expansions Conveyance System Expansion Reimbursements1 Total CIP 2013 $1,000,0002 $1,000,000 2014 $30,300 $30,300 2015 $1,000,0003 $30,300 $1,030,300 2016 $903,863 $9,000,0004 $2,000,000 $30,300 $11,934,163 2017 $904,763 $30,300 $935,263 2018 $904,963 $30,300 $935,063 2019 $904,463 $30,300 $934,763 2020 $905,275 $1,000,0005 $30,300 $1,935,575 2021 $903,575 $30,300 $933,875 2022 $906,175 $30,300 $936,475 2023 $905,375 $30,300 $935,675 Total $7,238,450 $12,000,000 $2,000,000 $303,000 $21,541,450 1. Reimbursements represent the estimated annual reimbursement to account for past conveyance system upsizing to support future growth. 2. Upgrade clarifier curtains, add one additional blower, upgrade diffusers, modify headworks, and upgrade screening. These upgrades increase the primary and secondary treatment capacity from 0.38 mgd to 0.5 mgd. 3. Design and permitting for the expansion of primary and secondary treatment from 0.5 mgd to 1.5 mgd. 4. Construction of upgrades to expand the primary and secondary treatment from 0.5 mgd to 1.5 mgd. 5. Install permanent solids handling facilities. Exhibit B to Marana Resolution 2014-016 FIGURES Exhibit B to Marana Resolution 2014-016 ")G ")! ")! ")! ")G ")! ")G "D)TRICO RDTWIN PEAKS RD COCHIE CANYON TR SIL V E R B E L L R D MARANA RD AVRA VALLEY RD QUARRY RDGRIER RD SANDARIO RDTANGERINE RDAGUIRRE RDGARVEY RDSAGEBRUSH RD WENTZ RDINA RDSCENIC DRTRICO MARANA RD BARNETT RD CAMINO DE MANANA SANDERS RDDO V E M O U N T A I N B L KIRBY HUGHES RD OWL HEAD RANCH RDLINDA VISTA BL HARDIN RD OASIS RD C L A Y T O N R DLUCKETT RDPATTON RDTA N G E R I N E F A R M S R D AVRA RDSUNSET RD EL PA S O G A S R D CAMINO DE OESTE WONG WY PINAL AIRPARK RD MISSILE BASE RD CORTARO RDPOSTVALE RDWASSON AV BLUE BONNET RDS I L V E R B E L L R D CAMINO DE MANANA TANGERINE FARMS RDLUCKETT RDMOORE RD SI L V E R B E L L R DSANDARIO RDSANDERS RDHARDIN RD 9 8 4 5 16 18 1 17 10 32 12 13 6 7 15 11 14 19 1.0 Pinal Airpark WRF Marana WRF MTC WRF Marana High School WRF Adonis WRF Rillito Vista WRF Ina Road WRF Airport Septic System Copyright:© 2009 ESRI, i-cubed, GeoEye Legend Pima/Pinal County Line Existing Sewers Sewer Basin Boundaries Marana DMA Saguaro Bloom Wastewater Treatment Plants ")G Public WRF "D)Public Septic System ")!Private WRF 2013 SEWER IMPACT FEE ANALYSIS Figure 1 0 1 20.5 Miles ³ §¨¦10 §¨¦10 Marana DMA and Sewer Basins Pinal County Pima County M:\projects\527.01\2012 Impact Fee\mxd\2013 Report\Sewer Basins & DMA.mxd Exhibit B to Marana Resolution 2014-016 TWIN PEAKS RD COCHIE CANYON TR SIL V E R B E L L R D MARANA RD AVRA VALLEY RD QUARRY RDGRIER RD SANDARIO RDTANGERINE RD GARVEY RDSAGEBRUSH RD WENTZ RDINA RDSCENIC DRTRICO MARANA RD BARNETT RD CAMINO DE MANANA SANDERS RDDO V E M O U N T A I N B L KIRBY HUGHES RD OWL HEAD RANCH RDLINDA VISTA BL HARDIN RD OASIS RD C L A Y T O N R DLUCKETT RDPATTON RDTA N G E R I N E F A R M S R D SHANNON RDAVRA RDTHORNYDALE RDEL PA S O G A S R D CAMINO DE OESTE WONG WY CORTARO RDPOSTVALE RDWASSON AV BLUE BONNET RDCAMINO DE MANANA TANGERINE FARMS RDLUCKETT RDMOORE RD SI L V E R B E L L R DSANDARIO RDSANDERS RDHARDIN RD Rancho Marana Town Center Barrios de Marana Marana Main St. Payson Farms Fianchetto Farms Whitney Farms Hartman 59 Willow Ridge Custom Tortolita Reserve Sky Ranch II Ina & Silverbell Marana Mercantile Cypress Gardens Lazy K Cortaro Crossing Saguaro Ranch Airport Dove Mountain Cascada Continental Ranch The Villages of Tortolita Pima Farms Sanders Grove Gladden Farms Sky Ranch Tapestry Gladden Farms II Vanderbilt Farms Saguaro Bloom Mandarina San Lucas Tangerine Crossing Marana Towne Center Tangerine Commerce Park De Anza Shops at Tangerine Marana Spectrum Tortolita Vistas Rancho Marana Uptown at Marana Cascada North Pima Farms North Anway Farms Tangerine Business ParkHonea Heights III Casa Sevilla Tangerine Thornydale The Estate Lots at Tortolita Preserve Marana Gardens Copyright:© 2009 ESRI, i-cubed, GeoEye Legend Marana Town Limits Pima/Pinal County Line Development Areas Airport Anway Farms Barrios de Marana Casa Sevilla Cascada Cascada North Continental Ranch Pima Farms Cortaro Crossing Cypress Gardens De Anza Dove Mountain Fianchetto Farms Gladden Farms Gladden Farms II Hartman 59 Honea Heights III Ina & Silverbell Lazy K Mandarina Marana Gardens Marana Main St. Marana Mercantile Marana Spectrum Marana Towne Center Payson Farms Pima Farms North Rancho Marana Rancho Marana Town Center Saguaro Bloom Saguaro Ranch San Lucas Sanders Grove Shops at Tangerine Sky Ranch Sky Ranch II Tangerine Business Park Tangerine Commerce Park Tangerine Crossing Tangerine Thornydale Tapestry The Estate Lots at Tortolita Preserve The Villages of Tortolita Tortolita Reserve Tortolita Vistas Uptown at Marana Vanderbilt Farms Whitney Farms Willow Ridge Custom 0 1 20.5 Miles ³ §¨¦10 §¨¦10 Development Areas Pinal County Pima County 2013 SEWER IMPACT FEE ANALYSIS Figure 2 M:\projects\527.01\2012 Impact Fee\mxd\2013 Report\Sewer Growth Projectsions.mxd Exhibit B to Marana Resolution 2014-016