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09/04/2010 Study Session Agenda Packet
~~~~r ~'1~ s "~~'# i .,,x~ ~, r,R. MARANA TOWN COUNCIL, STUDY SESSION NOTICE AND AGENDA 11555 W. Civic Center Drive, Marana, Arizona 85653 Council Chambers, September 14, 2010, at or after 6:00 PM Ed Honea, Mayor Herb Kai, Vice Mayor Russell Clanagan, Council Member Patti Comerford, Council Member Carol McGorray, Council-Member Jon Post, Council Member Roxanne Ziegler, Council Member ACTION MAY BE TAKEN BY THE COUNCIL ON ANY ITEM LISTED ON THIS AGENDA. Revisions to the agenda can occur up to 24 hours prior to the meeting. Revised agenda items appear in italics. The Council Chambers are wheelchair and handicapped accessible. Any person who, by reason of any disability, is in need of special services as a result of their disability, such as assistive listening devices, agenda materials printed in Braille or large print, a signer for the hearing impaired, etc., will be accommodated. Such special services are available upon prior request to the Town Clerk at least 10 working days prior to the Council meeting. CALL TO ORDER AND ROLL CALL PLEDGE OF ALLEGIANCE/INVOCATION/MOMENT OF SILENCE APPROVAL OF AGENDA DISCUSSION/DIRECTION/POSSIBLE ACTION Resolution No. 2010-87: Relating to Utilities; approving and authorizing the Mayor to execute a five year intergovernmental agreement between the Town of Marana and Metropolitan Domestic Water Improvement District for the purchase of Long Term Storage Credits (Dorothy O'Brien) Presentation: Relating to Community Development; providing an overview of regional transit services and proposed intergovernmental agreements with the City of Tucson and the Regional Transportation Authority of Pima County for the provision of public transit services for the Town of Marana for fiscal year 2010-2011 (T VanHook) Presentation: Council discussion and direction concerning proposed schedule for bringing forward zoning regulations addressing permitted locations for medical Study Session -September 14, 2010 -Page 1 of 68 marijuana dispensaries and medical marijuana dispensary offsite cultivation locations if the Arizona Medical Marijuana Act initiative (Proposition 203) is approved by the voters on November 2, and addressing any substantive zoning requirements the Council wants the staff and commission to consider. (Frank Cassidy) Presentation: Regarding the 2010 Marana Potable Water Master Plan (Dorothy O'Brien) Executive Session pursuant to A.R.S. §38-431.03 (A)(3), Council may ask for discussion or consultation for legal advice with the Town Attorney concerning any matter listed on this agenda. ADJOURNMENT Study Session -September 14, 2010 -Page 2 of 68 ~~#~ "~ ,~~ .as ~a~<~, 11555 W. CIVIC CENTER DRIVE, MARANA, ARIZONA 85653 COUNCIL CHAMBERS, September 14, 2010, 6:00:00 PM To: Mayor and Council Item D 1 From: Dorothy O'Brien ,Utilities Director Strategic Plan Focus Area: Community Building Strategic Plan Focus Area -Additional Information: Strategic Plan Initiative: Secure all necessary water resources and infrastructure. Strategic Plan Action Strategy: Identify and consider options for resource acquisition and infrastructure improvement. Subject: Resolution No. 2010-87: Relating to Utilities; approving and authorizing the Mayor to execute a five year intergovernmental agreement between the Town of Marana and Metropolitan Domestic Water Improvement District for the purchase of Long Term Storage Credits Discussion: The Town is required to replenish as much water as it uses. In 2009, the Town used approximately 2,200 acre feet and replenished its full 1,528 acre foot allotment of CAP water by having it delivered to and recharged at the Lower Santa Cruz Replenishment Project. The Town has used accrued or purchased storage credits or has paid the Central Arizona Groundwater Replenishment District (CAGRD) to cover the Town's remaining replenishment obligations. Over the next five years, Metropolitan Domestic Water Improvement District (Metro) anticipates that its CAP allotment will exceed its replenishment obligations by 1,635 acre feet per year. This proposed IGA will give the Town first priority to purchase up to 1,537 acre feet per year of long term storage credits Metro can accrue by taking delivery of and recharging its full CAP allotment. The cost to purchase these credits from Metro is anticipated to be significantly less than the Town's cost of having the CAGRD replenish the same quantity of water. Financial Impact: If approved, this IGA will reduce the Town's overall water resources cost. Funding currently budgeted for payment to CAGRD will simply be used to pay Metro for Long Term Storage Credits. ATTACHMENTS: Study Session -September 14, 2010 -Page 3 of 68 Name: Description: Type: O Reso approving_Metro LTSC_IGA.doc Reso Approving Metro LTSC IGA Resolution ^ Metro LTSC IGA.doc Exh A to Reso: Metro LTSC IGA Exhibit Staff Recommendation: The Utilities Department recommends the Town of Marana enter into the proposed IGA with Metropolitan Domestic Water Improvement District to provide additional water resources to the Town on an annual basis. Commission Recommendation - if applicable: The Utilities Commission is currently on a summer break. This item will be brought to them for discussion at the September meeting. Suggested Motion: I move to adopt Resolution No. 2010-87, approving and authorizing the Mayor to execute the proposed Metropolitan Domestic Water Improvement District IGA for the purchase of Long Term Storage Credits. Study Session -September 14, 2010 -Page 4 of 68 MARANA RESOLUTION N0.2010-87 RELATING TO UTILITIES; APPROVING AND AUTHORIZING THE MAYOR TO EXECUTE A FIVE YEAR INTERGOVERNMENTAL AGREEMENT BETWEEN THE TOWN OF MARANA AND METROPOLITAN DOMESTIC WATER IMPROVEMENT DISTRICT FOR THE PURCHASE OF LONG TERM STORAGE CREDITS WHEREAS the Town of Marana and Metropolitan Domestic Water Improvement District (Metro) provide potable water to residents and businesses; and WHEREAS the Town endeavors to purchase water annually equivalent to the volume of water pumped; and WHEREAS Metro is willing to sell Long Term Storage Credits on an annual basis to supplement the Town's purchase of water from Central Arizona Project. NOW, THEREFORE, BE IT RESOLVED BY THE MAYOR AND COUNCIL OF THE TOWN OF MARANA, ARIZONA, AS FOLLOWS: SECTION 1. The "Agreement to Sell and Assign Central Arizona Project Long-Term Storage Credits in the Tucson Active Management Area" attached as Exhibit A to and incorporated by this reference in this resolution is hereby approved, and the Mayor is hereby authorized to execute it for and on behalf of the Town of Marana. SECTION 2. The various Town officers and employees are authorized and directed to perform all acts necessary or desirable to give effect to this resolution. PASSED AND ADOPTED BY THE MAYOR AND COUNCIL OF THE TOWN OF MARANA, ARIZONA, this 14th day of September, 2010. Mayor Ed Honea ATTEST: APPROVED AS TO FORM: Jocelyn C. Bronson, Town Clerk Frank Cassidy, Town Attorney Study Session -September 14, 2010 -Page 5 of 68 AGREEMENT TO SELL AND ASSIGN CENTRAL ARIZONA PROJECT LONG-TERM STORAGE CREDITS IN THE TUCSON ACTIVE MANAGEMENT AREA THIS AGREEMENT TO SELL AND ASSIGN LONG-TERM STORAGE CREDITS IN THE TUCSON ACTNE MANAGEMENT AREA (this "Agreement") is entered into as of the day of September, 2010 ("Effective Date") by and between the Town of Marana, an Arizona municipal corporation ("Town"), and Metropolitan Domestic Water Improvement District, an Arizona municipal corporation ("District"), (collectively referred to as the "Parties"). RECITALS A. The purpose of this Agreement is to provide for cooperation between the Town and District for the purpose of providing renewable water supplies to the Parties' customers in accordance with the requirements of the Assured Water Supply program in the Tucson Active Management Area ("Tucson AMA"), which will mutually benefit the Town and District. B. The Town seeks to acquire long-term storage credits ("LTSCs"), as defined in A.R.S. § 45-802.01(11). C. The District desires to sell, and the Town desires to acquire, a portion of the District's Central Arizona Project ("CAP") Municipal and Industrial ("M&I") Subcontract water that will be stored in the future, as LTSCs, on a best efforts basis during the term of this Agreement. D. Both ~ the Town and District own and operate wells permitted by the Arizona Department of Water Resources ("ADWR") as recovery wells that may recover stored water within their service areas. E. The District has entered into a subcontract with the Central Arizona Water Conservation District ("CAWCD") in the amount of 13,460 acre-feet ("af') per year of CAP M&I Subcontract water to be delivered through the CAP canal system. F. The District holds Water Storage Permit No. 73-564896.01 to store up to 11,000 of per year at the Avra Valley Underground Storage Facility ("AV-USF"); and holds Water Storage Permit No. 73-561366.03 to store up to 15,000 of per year at the Lower Santa Cruz Underground Storage Facility ("LSC-USF"). G. The Town is a Designated Municipal Water Provider (DWR No. 26- 402254.000) in the Tucson AMA enrolled as a Member Service Area of the Central Arizona Groundwater Replenishment District ("CAGRD"). Study Session -September 14, 2010 -Page 6 of 68 AGREEMENT NOW, THEREFORE, for good and valuable consideration, the receipt and sufficiency of which .are hereby acknowledged, the Parties hereto agree to the following terms and conditions: 1.0 Incorporation of Recitals. The Recitals set forth above are true and correct and are incorporated by reference as though fully set forth herein. 2.0 Order and Purchase of LTSCs. Pursuant to the terms and conditions of this Agreement, District agrees to sell the Town at least 1,537..37 of of LTSCs. in the Tucson AMA each year during the term of this Agreement, in accordance with the terms and conditions set forth below: 2.1 The District agrees that the Town shall have first priority to purchase at least 1,537.37 of of LTSCs to be accrued by the District in the Tucson AMA during the term of this Agreement. 2.2 Except as provided in subparagraph 2.3 herein, the Town shall elect the amount of LTSCs it wishes to purchase in any calendar year by notifying the District by August 31St of the preceding calendar year. Failure to provide such notice shall abrogate the District's obligations under this Agreement for the following year only. 2.3 The District shall be responsible for ordering and arranging for the delivery and storage of CAP M&I water in the Tucson AMA. For calendar year 2011, the District shall order and arrange for the delivery and storage of CAP M&I water, in order to enable the assignment to the Town, after regulatory deductions, 1,537.37 acre- feet of LTSCs for the Town's use in calendar year 2012. The costs to Marana for calendar year 2011 and each calendar year thereafter are reflected on Schedule 1. 2.4 The price per acre-foot of LTSCs purchased by Town during the term of this Agreement shall be based upon the following: (a) the annual purchase price shall be the Capital and Delivery charges set forth in the Annual Rate Schedule adopted by the CAWCD Board of Directors for M&I long-term subcontractors during the year in which the CAP LTSC water was delivered to the District; plus (b) the District's operation and maintenance fee at the AV-USF of $15 per acre-foot for 2011 and 2012 with an annual increase of 3% in subsequent years, or comparable fee for storage at the LSC- USF, plus (c) District administration costs in an amount equal to 1.02 multiplied by the sum of (a) + (b). These costs are reflected on Schedule 1. 2.5 Payment from the Town for the annual LTSCs acquired from the District shall be made in twelve equal installments due on the last day of each month of each year in which CAP water is delivered to the District. The monthly payments shall be based upon the amount of LTSCs requested by the Town pursuant to this Paragraph 2. 3.0 Term. The term of this Agreement will commence on the Effective Date and will terminate on December 31, 2015 unless the Parties mutually agree in writing to extend the term of this Agreement. 2 Study Session -September 14, 2010 -Page 7 of 68 4.0 Water Storage. All CAP M&I water stored by the District in the Tucson AMA pursuant to subparagraph 2.1 of this Agreement, shall be stored in compliance with the requirements of A.R.S. § 45-852.01(B) at the AV-USF (Permit No. 71-564896.0003) and/or the LSC-USF (Permit No. 71-561366.0002), as those permits may be amended from time to time. 5.0 ADWR and CAGRD Reporting. The Town and District shall comply with all applicable permitting and filing requirements of the ADWR, CAWCD and CAGRD, on a timely basis. If necessary, the Parties shall cooperate to ensure timely compliance. 6.0 Assignment of LTSCs Accrued by the District. Within thirty (30) days after District receives annual notification from ADWR of the amount of LTSCs accrued from the storage of CAP M&I water in the Tucson AMA, the District shall prepare for the Town's execution, ADWR's form authorizing the assignment of the District's LTSCs to the Town based upon of the amount of LTSCs identified in subparagraph 2.2 herein. 7.0 Assignment of LTSCs accrued by the District. Not later than September 30t" of each calendar year, beginning in 2012, the Parties shall notify ADWR, on a form provided by ADWR, of the assignment of LTSCs agreed upon by the Parties in Section 2 of this Agreement, minus the regulatory deductions described in Section 8, below, from the District's Long-Term Storage Account (Permit No. 70-411130) to the Town's Long-Term Storage Account (Permit No. 70-411220.000). The Town will be responsible for payment to ADWR of the LTSC transfer fee. 8.0 ADWR Determination of LTSC. 8.1 The Parties acknowledge that any LTSCs issued by ADWR for CAP water stored by the District in the Tucson AMA will reflect reductions made by ADWR in accordance with the requirements of A.R.S. § 45-852.01, historically in an amount equivalent to six percent ("6%") of the gross water volume delivered into a storage facility (the "Net Credits"). The Parties further acknowledge that the exact amount of LTSCs earned by the District will not be known until after a final determination is made by the Director of ADWR, which may occur after June 30`" of the calendar year following storage. 8.2 Any adjustments to the amount of LTSCs received by the District from ADWR for CAP water storage in the Tucson AMA in excess of 6% shall be the sole responsibility of the District and any additional reduction or loss of such LTSCs shall be the District's sole risk and shall not affect the District's commitment to assign the full amount of the Net Credits to the Town in any particular year during the term of this Agreement. 8.3 ADWR's rejection and invalidation of an assignment of LTSCs to the Town pursuant to A.R.S. § 45-854.01(C) shall not cause a reduction in the amount of monies owed the District by the Town pursuant to the terms of this Agreement. 9.0 District's Warranties; Limitations. 3 Study Session -September 14, 2010 -Page 8 of 68 9.1 All applicable legal requirements and fees related to the storage of CAP water in the Tucson AMA pursuant to this Agreement will have been or will be satisfied by the District at the time of the assignment. 9.2 The District will have good and marketable title to the LTSCs, free of any liens or encumbrances, at the time of assignment. 9.3 Because CAWCD controls all deliveries of CAP water to the Tucson AMA, and to the AV-USF and the LSC-USF, the District does not warrant that CAP water will be successfully delivered throughout the term of this Agreement 10.0 Water Recovery. The Parties acknowledge the need to construct recovery wells to facilitate the recovery of water they have stored in the AV-USF and the LSC- USF, which are located within the Town's service area. During the term of this agreement, the Parties agree to work together to locate any such wells outside of the area of hydrologic impact in mutually acceptable locations within the Town's service area, recognizing that the District and Town's primary obligation is to provide adequate and efficient service to its customers. 11.0 Termination. 11.1 This Agreement may be terminated for any reason by either Party upon one hundred and eighty (180) days written notice in accordance with the provisions of Paragraph 12 herein; provided however, that the Parties will continue to honor any contractual obligations entered into prior to the termination date, which obligations extend longer than 180 days following the date of such notice. 11.2 This Agreement. may be terminated upon the effective date of a statutory or regulatory change that results in the prohibition of this type of transaction. 11.3 .The District may terminate this Agreement if, after using its best efforts, the District is unable to procure the necessary CAP water to store for LTSC as required by the terms of this Agreement. 12.0 Notices. All notices or other communications required or provided to be sent by either Party shall be in writing and shall be sent by United States Postal Service, postage prepaid, return receipt requested; courier; any nationally recognized overnight delivery service; facsimile transmission; or in person. Any such notice sent by registered or certified mail return receipt requested shall be deemed to have been duly given and received seventy-two (72) hours after the same is so addressed and mailed with postage prepaid. Notices delivered by overnight service shall be deemed to have been given twenty-four (24) hours after delivery of the same, charges prepaid, to U.S. Postal Service or private courier. Notice hand-delivered by courier for same-day delivery shall be deemed to have been given on the date of hand-delivery. If any notice is transmitted by facsimile transmission or similar means, the same shall be deemed served or delivered upon confirmation of transmission thereof. Any notice or other document sent by any other manner shall be effective only upon actual receipt thereof. All notices shall be addressed to the Party at the address below: 4 Study Session -September 14, 2010 -Page 9 of 68 If to the Town of Marana: Utilities Department Director Attn: Ms. Dorothy O'Brien 51.00 W. Ina Road Tucson, Arizona 85743 Fax No.: 520-382-2590 With a copy to: Town Attorney Attn: Mr. Frank Cassidy 11555 W. Civic Center Dr Marana, Arizona 85653 Fax No.: 520-382-1945 If to Metropolitan DWID: General Manager Attn: Mr. Mark Stratton P.O Box 36870 Tucson, Arizona 85740 Fax No. 520-575-8454 13.0 Change of Address. Any address or name specified above may be changed by notice given to the addressee by the other Party in accordance with this Paragraph. The inability to deliver because of a changed address of which no notice was given, or rejection or other refusal to accept any notice, shall be deemed to be the receipt of the notice as of the date of such inability to deliver or rejection or refusal to accept. Any notice to be given by any Party hereto may be given by the counsel for such Party. 14.0 Additional Documents. Each of the Parties agrees to execute any and all documents necessary to effectuate the intent and purposes of this Agreement. 15.0 Entire Agreement. This Agreement, together with any attachments or other documents expressly referred to or incorporated by reference herein, contains the entire Agreement of the Parties with respect to the subject matter herein, and constitutes and embodies the full and complete understanding and agreement of the Parties hereto with respect to the subject matter herein, and supersedes all prior understandings and agreements, whether oral or in writing. 16.0 Non-Discrimination. The Parties agree to be bound by applicable state and federal laws, rules and regulations governing equal employment opportunity and prohibiting discrimination. 17.0 Inspection and Audit. All books, accounts, reports, files and other records relating to this Agreement shall be subject at all reasonable times to inspection and audit by either Party for five (5) years after completion of performance under this Agreement, as required by A.R.S. § 35-214 and any successor statutes. Such records shall be produced at the Arizona Attorney General's office or at the requesting party's principal office within a reasonable time after request is made therefore. Study Session -September 14, 2010 -Page 10 of 68 18.0 Conflicts of Interest. The Parties acknowledge that either the Town or the District may, pursuant to A.R.S. § 38-511 or any successor statute, within three (3) years after execution of this Agreement, and without penalty or further obligation, cancel this Agreement if any person significantly involved in initiating, negotiating, securing, drafting or creating this Agreement on behalf of the Town or District is, at any time while the Agreement or any extension of the Agreement is en effect, an employee or agent of any other Party to the Agreement in any capacity or a consultant to any other Party of the Agreement with respect to its subject matter. 19.0 Governing Law. The law of the State of Arizona shall govern this Agreement's interpretation and enforcement. 20.0 Dispute Resolution. In the event that a dispute between or among the Parties to this Agreement should arise, to the extent required by law, and subject to applicable jurisdictional amounts, such dispute shall be resolved by arbitration pursuant to the Arizona Uniform Rules of Procedures for Arbitration and A.R.S. § 12-1518. 21.0 Counterparts. This Agreement may be executed in counterparts, each of which shall be deemed an original, but all of which shall constitute one and the same agreement. 22.0 Headings. The headings and titles to the paragraphs of this Agreement are not a part of this Agreement and shall have no effect upon the construction or interpretation of any part of this Agreement. 23.0 Severability. In the event any one or more of the provisions contained in this Agreement shall for any reason be held to be invalid, illegal, or unenforceable in any respect, such invalidity, illegality, or unenforceability shall not affect any other provisions of this Agreement, but this Agreement shall be construed as if such invalid, illegal, or unenforceable provision had never been contained herein. 24.0 Attorneys' Fees. If either Party hereto breaches any provision of this Agreement, the breaching Party shall pay to the non-breaching Party all reasonable attorneys' fees and other costs and expenses incurred by the non-breaching Party in enforcing this Agreement or preparing for legal or other proceedings regardless of whether suit is instituted 25.0 Waiver. A waiver of any breach or default shall not be a waiver of any other breach or default. 26.0 Force Majeure. Any prevention, delay, or stoppage due to Force Majeure shall excuse the performance by a Party for a period equal to any such prevention, delay, or stoppage. Study Session -September 14, 2010 -Page 11 of 68 6 IN WITNESS WHEREOF, the Parties have entered into this Agreement as of the date first written above. TOWN OF MARANA, ARIZONA, an Arizona municipal corporation By: Printed Name: Its: Mayor Date: Attest: Jocelyn Bronson, Town Clerk Approved as to Form: Frank Cassidy, Town Attorney METROPOLITAN DOMESTIC WATER IMPROVEMENT DISTRICT, an Arizona municipal corporation By: Printed Name: Its: Chairman of the Board Date: Attest: Warren Tenney, District Clerk Approved as to Form: Lewis & Roca, P.A. District Counsel 7 Study Session -September 14, 2010 -Page 12 of 68 Schedule No. 1 Recharge Costs for 2011 and 2012 (MDWID to order and recharge 1,635.5 AF and assign to Marana the net allowable by ADWR following deductions for "cut to the aquifer" and evaporation, but not less than 1,537.37 AF)Recharge Cost Formula =Water Ordered x (Price of CAP Capital charge + CAP Delivery charge + Recharge O&M charge) +MDWID Administrative Charge Factor For 2011 1,635.5 AF x ($15/AF + $122/AF + $15/AF) x 1.02, or and 2012: 1.635.5 AF x $152/AF x 1.02, or 1,635.5 AF x $155.04/AF = $253,567.92 Payable on the last day of each month in twelve equal annual installments of $21,130.66. Recharge Credit Formula =Water Ordered x (1 -Percent of Evaporation Losses - Percent Cut to the Aquifer) For 2011and 2012: 1,635.5 AF x (1 - 0.01 - 0.05), or 1,635.5 AF x 0.94 = 1,537.37 AF Recharge Costs for 2013 through 2015 Except for the annual 3% increase for operation and maintenance costs at the recharge facilities, the Recharge Costs for the remaining years of this agreement shall be calculated in the same manner as the prior years. 8 Study Session -September 14, 2010 -Page 13 of 68 ,~ - ,~.~~.~ ~~~ ~~ ~~~ ~t~~ a~ ~FR~.~ 11555 W. CIVIC CENTER DRIVE, MARANA, ARIZONA 85653 COUNCIL CHAMBERS, September 14, 2010, 6:00:00 PM To: Mayor and Council Item D 2 From: T VanHook ,Community Development Director Strategic Plan Focus Area: Community Building, Progress and Innovation Strategic Plan Focus Area -Additional Information: Strategic Plan Initiative: Develop partnerships, policies and programs that foster innovation and effective use of taxpayer resources. Strategic Plan Action Strategy: Identify partnerships and IGAs with other communities in the region where mutually beneficial solutions to service delivery can be achieved. Subject: Presentation_Relating to Community Development; providing an overview of regional transit services and proposed intergovernmental agreements with the City of Tucson and the Regional Transportation Authority of Pima County for the provision of public transit services for the Town of Marana for fiscal year 2010-2011 Discussion: Over the past three years Marana staff has worked closely with Pima County, the City of Tucson, Oro Valley, Sahuarita, and the PAG/RTA Transit Working Group in a collaborative effort to plan for and initiate enhanced regional transit services. The Working Group's efforts have concentrated on: (1) increasing accessibility to transit services; (2) providing un- and under- served areas with new transit routes; and (3) coordinating service schedules, rates, safety, planning, and marketing throughout the region. During this process, Pima County notified the Town of Marana and other regional partners that they would no longer serve as a funding pass- through for City of Tucson (SunTran) service formerly contracted through the County requiring the Town of Marana to enter into intergovernmental agreements (IGAs) with several partners instead of only the County. During FY 2009-2010 the working group partners made adjustments to several services to reduce duplicated efforts and streamline services. In addition, partners launched a series of educational campaigns to increase ridership. These initiatives have reduced the overall cost of service provision and increased the opportunity for Marana residents to link seamlessly to the wider- reaching regional transit system. These service changes included the reduction of neighborhood circulators at Dove Mountain and an increase in services along the Thornydale/River corridor. Currently transit services within the Town include: (1) Marana Rural Route (Sun Shuttle) providing three 90 minute weekday loops through the Town and unincorporated areas of Pima Study Session -September 14, 2010 -Page 14 of 68 County starting at 5:30 am and ending at 7:00 pm; (2) Sun Tran Route 16 running down Ina Road to Oracle Road; (3) Sun Express routes 102x, 103x, 104x, and 202x provide connections to Oro Valley, the aero Park, and downtown Tucson; and (4) an extremely successful neighborhood circulator service (Sun Shuttle) offering services on three routes. Although the move to create a consolidated transit system has faltered over the last few months, talks continue between the partnering entities about ways to further the goal of regional connectivity. During the study session the latest information about these discussions will be presented along with proposed IGA's for the continuation of services. ATTACHMENTS: Name: Description: Type: No Attachments Available Staff Recommendation: Suggested Motion: Study Session -September 14, 2010 -Page 15 of 68 ""~~`~ ~~~ ~~~~ TX~9e ~^ bfAPld'kL 11555 W. CIVIC CENTER DRIVE, MARANA, ARIZONA 85653 COUNCIL CHAMBERS, September 14, 2010, 6:00:00 PM To: Mayor and Council Item D 3 From: Frank Cassidy ,Town Attorney Strategic Plan Focus Area: Not Applicable Subject: Presentation: Council discussion and direction concerning proposed schedule for bringing forward zoning regulations addressing permitted locations for medical marijuana dispensaries and medical marijuana dispensary offsite cultivation locations if the Arizona Medical Marijuana Act initiative (Proposition 203) is approved by the voters on November 2, and addressing any substantive zoning requirements the Council wants the staff and commission to consider. Discussion: Proposition 203 is an initiative proposing to adopt the Arizona Medical Marijuana Act, legalizing the use of marijuana for medical use,. and licensing nonprofit medical marijuana dispensaries to sell marijuana for medical use. The law allows at least one dispensary in every county, and one dispensary for every ten state-registered pharmacies. If there's no dispensary within 25 miles of a qualifying patient's home, the qualifying patient (or his or her designated caregiver) may grow up to twelve marijuana plants for the qualifying patient's personal use. The Act acknowledges the right of municipalities to adopt zoning regulations for medical marijuana dispensaries. Under the Act, each dispensary is permitted to have one offsite location for the cultivation of marijuana. Although the Act does not expressly authorize municipalities to adopt zoning regulations for these offsite cultivation locations, that right is implicit in the authority to regulate the dispensaries themselves, since each cultivation location is accessory to its individual dispensary. The Act already includes certain minimal regulations. For example, dispensaries and their offsite cultivation locations may not be within 500 feet of an existing public or private school, dispensaries must have a single secure entrance, and cultivation can only occur in an enclosed, locked facility. However, jurisdictions where medical marijuana laws have been adopted have reported significant crime associated with medical marijuana dispensaries and cultivation locations. Consequently, town staff recommends that the town preemptively adopt zoning regulations to address the impacts of dispensaries and cultivation locations before the Act becomes effective. Subject to Council direction, town staff plans to bring proposed zoning regulations for consideration and recommendation at the Planning Commission's September 29 meeting, and to bring them forward to Council as soon as practicable after the Planning Commission makes its Study Session -September 14, 2010 -Page 16 of 68 recommendations. Town staff invites and comments or feedback from Council members at this time with respect to the extent and nature of the proposed regulations and the schedule for consideration and adoption of the regulations. ATTACHMENTS: Name: Description: Type: No Attachments Available Staff Recommendation: Staff recommends that Council authorize the staff to proceed with bringing forward zoning regulations addressing permitted locations for medical marijuana dispensaries and medical marijuana dispensary offsite cultivation locations. Suggested Motion: I move to authorize the staff to proceed with bringing forward zoning regulations addressing permitted locations for medical marijuana dispensaries and medical marijuana dispensary offsite cultivation locations in a manner consistent with Council's discussion and comments at tonight's meeting. Study Session -September 14, 2010 -Page 17 of 68 ~~ 11555 W. CIVIC CENTER DRIVE, MARANA, ARIZONA 85653 COUNCIL CHAMBERS, September 14, 2010, 6:00:00 PM To: Mayor and Council Item D 4 From: Dorothy O'Brien ,Utilities Director Strategic Plan Focus Area: Commerce, Community Building Strategic Plan Focus Area -Additional Information: Strategic Plan Action Strategy: Complete infrastructure master plan with representation from all utilities. Strategic Plan Initiative: Secure all necessary water resources and infrastructure. Strategic Plan Action Strategy; Identify and consider options for resource acquisition and infrastructure improvement. Subject: Presentation: Regarding the 2010 Marana Potable Water Master Plan Discussion: The 2010 Potable Water Master Plan (Master Plan) has been developed in accordance with the town's Strategic Plan and serves as an implementing document for the Town's General Plan, which is scheduled for adoption in May, 2011. The Master Plan evaluates the existing potable water system's capacity to identify the needs of existing and future customers, creating a schedule that includes both projected time-frames and costs for the construction of needed capital improvements. The cost estimates contained in the Potable Water Master Plan will be used in the development of budgets, rates and connection fees for the Marana Water Department. Ensuring water services are available to development within Marana is a fundamental step in supporting the Town's Economic Development Roadmap. The Master Plan articulates department policies that would be applied to development and redevelopment. This presentation will familiarize the Town Council with the intent and objectives of the Master Plan and how discuss how the plan will be used moving forward. Financial Impact: The 2010 Potable Water Master Plan will be used by the Utilities Department in the development of the Town's annual Capital Improvement Plan and in future water rates and impact fee rate studies. Study Session -September 14, 2010 -Page 18 of 68 ATTACHMENTS: Name: Description: ^ 8301.0_Edts_for security 20.10._Maste..r_Plan_Report.pdf Draft 2010 Potable Water Master Plan Staff Recommendation: Type: Cover Memo Staff recommends that the Potable Water Master Plan be scheduled for formal council adoption at a regular council meeting. Commission Recommendation - if applicable: The Utilities Commission recommends the approval of the 2010 Potable Water Master Plan. Suggested Motion: Select one of the following motions: I move to direct staff to schedule the Potable Water Master Plan as presented for formal consideration and adoption at a regular council meeting. OR I move to direct staff to schedule the Potable Water Master Plan with the changes discussed this evening, for formal consideration and adoption at a regular council meeting. Study Session -September 14, 2010 -Page 19 of 68 ~' q F ~ ~'. _ jk^' S ski '~~nr1 1 i~{wt ~~ r i ~~ µ G, .~ f f` t x s ~!:. f r ,~g., ~ a ,a ; ~~ E :'a t~'~ sir n„ ~ .., ,. - ~ ~~.;: r k~, }: - ',~~~ _ ~ ~ ~ •s > . £ :. ~ kj ~ _ ~, _~ t e s ~tt ..~, f kk?R. ~~ r y~~ s_~d~ ~ , ~: ~,.~ ~4 ~} f wl ~~i' ~; [.x. i~ x ;. '- .` ~. y Lw ~:::. ~ ~i~~~ ~ ~i ~ Y ~' `. I i f '{~,,.A !; i. ~. }g I. 1. I ~h 'f{ f i ~,,;~ ~~;,3 i ~ ~ ~ i ~ ~. -~ -y i i ~~ 3 'r if «7 ~ ~,~=~ , t F 4' ' ~'~~ '" :' ,, } l k ~} i` ~ ~ ; ` t ; ; T k t y s x° ~ r ~ ~ ~ ; ~~ ~. .~ 2' ~ ~s 4 ~^ ` ~ s ... < .. ~ .. ~ i `^~ :'~ p. ~ ~ Jr,,.i z.rf .r: i ~ ~ ' ® ~ ~~ ~~1~ 1 ~~s~,.e ~ ~.. X . . . ~. ,~ ~y ~; ~:v t T EJCTCUTTVE SUMMARY Introductcn ............................................................................................................................................. ES-1 Planning Area .......................................................................................................................................... ES-1 Water Pressure Zones ............................................................................................................. ........ ES-1 Growth/I'hasing .............................................................................................. ............ ES-1 ............................. Water System Demand Pattern ................................................................................................................ ES-2 Wells------------------------------------------------------------ -------------------- ES-3> ------------------------------------------------------------------ Storage ..................................................................................................................................................... ES-3 Booster Stations .......................................................................................................................................ES-3 Capital Improvements Plans .................................................................................................................... ES-3' CHAPTER 1 -.MASTER PLAN OVERVIEW 1.1 Introduction ...................................................................................................................................1-1 1.2 Key Issues ...................................................................................................................................... l-1 1.3 Water System Planning Horizon ...................................................................................................1-2 1.4 Limits of Water Service Area ....................................................................................:...................1-2 1.5 Water Resources and Development ............................................................................................... l-2 1.6 crater Quality Regulations ............................................................................................................1-2 1.7 System Improvements for Existing Customers .............................................................................1-2 1.$ System Improvements for Growth .........................................:...................................................... l-3 1.9 Capital Expenditures and Timing ..................................................................................................1-3 CHAP`T'ER 2 -REGULATORY REQUIREMENTS 2.1 Federal Requirements ....................................................................................................................2-1 2.1.1 Safe Drinking Water Act (SDG~JA) ..............................................................................................2-1 2.1.2 Ground 1Y~`ater Rule (GW~t) ........................................................................................................2-1 2.1.3 Public Health Security and Boterrorism Preparedness and Response Act ...................................2 2' 2.1.4 Occupational Safety and Health Administration (OSHA~ ...........................................................2-3 2.2 State Requirements ........................................................................................................................2-3' 2.2.1 Arizona Department of Environmental Quality (ADEQ} ...........................................................2-3' 2.2.2 Arizona Department. of Water Resources (ADWR} ....................................................................2-5 2.3 Local Requirements .......................................................................................................................2-8 2.3.1 Town of Marana ~~`ater Policies ..................................................................................................2-8 2.3.2 Town of Marana'CX"tater Gode .....................................................................................................2-8 CHAPTER 3 -WATER SYSTEM DEVELOPMENT POLICIES 3.1 Ivan-potable Water System Policy ................................................................................................3-1 3.2 Fire Flow Poiicy ............................................................................................................................ 3-1 3.3 Storage Capacity Poiicy ................................................................................................................. 3-2 3.4 System Pressure Policy .................................................................................................................. 3 2 3.5 Looped Water Systems Policy ....................................................................................................... 3-3 3.6 Backup Generator Policy ............................................................................................................... 3-3 3.7 SCADA Poticy .............................................................................................................................. 3-3 3.8 Water Quality Control Policy ....................................................................................................... 3-3 39 Valve and Pump Facility Maintenance Palcy ............................................................................... 3-4 3.10 Land Acquisition Policy ................................................................................................................ 3-4 3.11 Existing System Upgrade Policy ................................................................................................... 3-4 3.12 Oversized Refund and Credit Policy ........................ ,.............. 3-5 study?~s~t r~8,11Afi5o ~°~ste ~+~ _ ...r Q.a,Y ,~ ~. ..r. 9 + ~ F.y ~~~ ~iI ~ ~ t° t~ `°~~ ~.'~ 3.`I3 Water System beve[opment and Financing Policy .................................,- -,.•---,.., ,...,.......,.._.......3-5 3.13.1 Existing S}stem I-`pgrade ......................................................................................................3-5 3.13.2 Water Scrste~m Improvements for Grotveh and Expausion ......................................................3-5 3.14 Project Prioritization Policy .................................,.,,.......................................................................3-6 3.15 Water Utility Construction Standards Policy ..................................:.............................................3-6 3.17 Drought Preparedness Plan ......................... .....:,... ..............................................:................:......3-6 ~C'HAPTER 4 - ExISTING SYSTEM ANALYSIS "THIS CHAPTER HAS BEEN REMOVED FOR SECURITY .PURPOSES UNDER THE PLtBLIC HEALTI[ SECURITY AND BIOTERRORIS~t PREPAREI)NF,SS RESPONSE ACT" CHAPTER 5 - FUThRE SYSfE~T ANALYSIS 5,1. General ...............................................,.......,..... ...,........ .,.... ...........,............................5-12 S.2' Buildout System Demands ............................................................ ......... ..................................5-2 5.3 Year -5, -10, and -20 System Demands .........................................................................................5-3 5.4 Future System Siring and Requirements ........................... ........r ..,.a.... ,....,..~ ...,................... S-5 5.4.1 Source Capacin~ ..........................................................................................................................5-S 5.4.2 Storage ....................................................................................................................................... S-6 5.4.3 13oostcr Stations .........................................................................................................................5-7 5.4.4 Gravity Storage Transmission Sc=stem ...............................................~.,......:._..,.............................5-8 5.5 Proposed Facilities -Future System Requirements __r_-- ---_.-_-- --__z.~_. ,~_~..._ __.___.._.__.__...,- 5-10 CHAPTER G-INFRASTRUCTURE COST PROJECTION 6.1 Cost Projection ,assumptions and Criteria...,.........._.....~_....... .......................................................6-T 6.1.1 Pipeline Keplacement .................................................................................................................6-1 6.1.2 Installation of Water i~Sains .................................................................................._.,.....................6-I 6.1.3 Installation of y~~elded Steel Reservoirs ............................... ..........,._..,~ 6-I 6.1.4 Installation of I3uricd Concrete Resenoirs ..................................................................................b-2 6.1.5 Installation of Elevated Rescrvoirs ............................................................................................. 6-2 6.1.6 ~k'e1lInstallations .................................................._..,..,..,............................................................6-2 6.1.7 Booster Stations ................................................,........................................................................6-2 6.1.8 Interstate 10, Railroad, and C~aP C,rossings.,.......,,~ .....................................................................6-2 6.1.9 Engineering and Conungencics ................................................................................._.................6-2 6.2 10-Year (2020} Capital Improvement Plan Cosi Projection ................................. ......~.. ..,,.......6-2 6.3 Buildout Capitat Improvement Plan Cost Projection....... ............................................,.........,......6-3 CHAPTER 7 - IMPLEbiEN~TATION 7.l lntroduction ................................................................................................................................... 7-4 7.2 Capital Improvements Implementation ......................................................................................... 7-4 7.3 Source, Storage, and Booster Capacity Evaluation .......................................................................7-4 7.4 Connection Fees and Rates ............................................................................................................7-9 7.4.1 Infrastn~cture Impact l~ec ....................... ........, ........, .,....... ........... ..................,.............7-9 7.4.2 Gravity Storage and Renewable ti~'aterResource I~ee._ ........................... ...,.., .....,....... ......,...7-9 Study~E~SiD~?~ FOif~r~$,"~b~?~~ji3'2;fY>£" c.=" ~^, - ~~ .,~„ %'` TAB coT~T LIST ~ xl~iBSTs (Exhibits appear at end of each section) Exhilait ES-l :2014 Marana Water Master Planning Area Exhibit ES-2: Water Demand Projections Exhibit ES-3: Pressure Zones Exhibit 4-1: Existing System Water Service Area Location Map Exhibit 4-2: Palo Verde Service Area Exhibit 4-3: Airport Service Area Exhibit 4-4: Airline/LarnbertlSaguaro SpringslLa Puerto and Falstaff Service Areas Exhibit 4-5: CortarolOshrin Service Area and Hartman Vistas Service Area Exhibit 4-6: Picture Racks/Continental Reserve/Springs Service Area Exhibit 4-7: North Marana Service Area Exhibit 5-1: Town of Marana General Plan 2407 and Specifre Plans Exhibit 5-2: ""Phis Exhibit has been removed for security purposes under the Public Health Security and Bioterrorism Preparedness Response Act" Exhibit 5-3: "This Exhibit has been removed for security purposes under the Public: Health Security and Biaterrorism Preparedness Response Act" LIST ol= ~l~l.l l;S Figure 1. Water Demand Prajections.---------------------------------------------------------------------------------------•-----,ES-2 Figure 2.2009 Water Demand Summary--------------•-------------_-__-- ES-2 LIST ~ TABUS Table 4-1. Connections and Usage Summary ---------------------•--------• -----------_-_ 4-1 Table 4-2:. Marana Watez Pressure Zone Baundaries--------------------------------------------------------------------- 4-2 Table 4-3. Existing. Well Capacity Summary.-------------------------------------------------------------------------------- 4-3 Table 4-4. Existing Reservoir Summary ------------------------------------------------------------------------------------_-_ 4-4 Table 4-5. Existing Booster Station Summary .................•--------------------•---------------------•-------------. 4-5 Table 4-6. Existing 1~~'ater System Capacity Summary.------------------------------------------------------------------ 4=5 Table 4~7. Equivalent Dwelling Unit Meter Factors_______________________________________________________________________ _~-~ Table 4-$. Existing Potable ~~4'ater Usage and Demand Summary_________________ 4-7 Table 4-9. Existing Well Capacity Requirements_____________________________________________-__-___--____--___-••__••_--_ 4-$ Table 4-10. Existing System Fire Flow Requirements-------------------------------------------------------------------- 4-9 Table 4-I 1. Existing Reservoir Capacity Requirements----------------------------------------------------- ------------ 4-10 Table 4-12. Existing Booster Capacity Rc;quirements-_-________________________________________________________________ 4-10 Table 4-13. Existing_System Capital Improvement Requirements__________________________________________________ 4-11 Table 5-l. Planning Density by Land Ilse Category_____________________________•___-____--___-__-__--___---____________-- 5-1 Table 5-2. Specific Plans Used in Flow Projeetion----•--------------------------------- - --.__------------ - ---------------- .5-2 Table 5-3. Buildout Projection: Summary------- --- -------------------------------------------------------------------------- 5-2 Table 5-4. Phasing of Specific Plan Development (as Percent of Buldaut}____________________•______-_______- 5-3 Table 5-S. 2415 Projected Demand Summary ------------------------------------------ --------- --------- --••_---- 5-4 Table 5-6. 2024 Projected Demand Summary------------------------------------------------------------------------------• _5-4 Table 5-7. 2430 Projected Demand Sumrttary_________________________________________________•______-________-_--______-- 5-S Table S-$. Future Source Capacity Requirements Summary ---------------------------------------------------------- 5-6 Table 5-9. Future Storage Capacity Requirements Summary---------------------------------------------------------- 5-7 Table 5-10. Future Booster Station Capacity Requirements Summary______-•________________________•---___----- 5-$ Table 5-11. Transmission Line Extension Summary,------------------------- --------- --------- --------- --------- 5-9 Stud - r~¢ r,~g,~ stern 1Vlas$er t~~ ~4 _: '~ t~L C1F CONTENT Table 5-12. 10-Year Capital Improvement Projects________________ ________________. _______ S_10 ------------------------- ------ Table 5-13. Buildout Capital Improvement Projects_______________ ____._ 5.11 Table Fi-l: Marana Water 10-Year (2020} Capital Improvement Projects.________________ ____________ _ __ ~~ _---__ . Table Erg: Marana WaterBuildoutCapital ImprovementProjects______ _________ _ ________ ____________~_5 Table 7-l . "This Exhibit has been removed for security purposes under the Public Health Security and 13ioterrorism Preparedness Response Act" Table 7-2. "This Exhibit has been removed for security purposes under the Public Health Security and Bioterrorism Preparedness Response Act" Table 7-3, "This lxhibit has been removed for security purposes under the Public Health Security and Boterrorisrn Preparedness Response Act" study ~ ~t r2~~~ cr Satern aster Dian ~,~- "'~:'w~`~ ~,;, \lcr _ -f. L ~ !e TI AAC Arizona Administrative Code ACC Arizona Corporation Commission ADD Average Daily Demand ADEQ Arizona Department of Environrrt~*tztal Quality ADOSH Arizona Division of occupational Safety and Health ADWR Arizona Department of Water Resources AIiY acre feet per year AMA Active Management Area ARS Arizona Revised Statues AWWA American Water works Association AWS Assured Water Supply AZPDES Arizona Pollutant Discharge Elimination. System BMP Best Management Practice BOR. Bureau of Reclamation CAGRD Central Arizona Groundwater Replenishment District CAP Central Arizona Project CAWCD Central Arizona Water Conservation I:~istrict CIP Capital Improvement Project CWA Clean Water Act CWS Community Water Systems EDU equivalent dwelling unit EOP Emergency operation Plan EPA Environmental Protection Agency Efts feet per second gpad gallons per acre per day gpcd gallons per capita per day gpd gallons per day gpm gallons per iriute GRW Ground Water Rule IFC International Fire Gode IPC International Plumbing Code MCL Maximum Contaminant Level MDWID Metropolitan Domestic Water Improvement District l~G rtsilbon gallons MCPCCP Modified Non-Per Capita Conservation Program MFR multi-family residence NPDES National Pollutant Discharge Elimination System C3SHA Occupational Safety and Health Administration PCB polychlorinated bi-phenyl PCDEQ Pima County Department of Environmental Quality PDD Peak Daily Demand PHD Peak Hourly Demand FHSBPRA Public Health Security and Boterrorism Preparedness and Response Act ppb parts per billion ppdu persons per dwelling unit PRAT pressure reducing valve psi pounds per square inch PWS Public Wafer Systems RTC Remote Terminal Unit SCADA supervisory control and data acquisition SDWA Safe Iarinking W ater Act SFR single family residence SMCLs Secondary maximum containment levels TCR Total Coliform Rule WHP Wellhead Protection Program Study.Sessian, September t4~,2Q1©~ Pays 25 gf.~.8 , : . wv ~, .. ~ .... ~ ~/ I1'OC1C'TO The 'T'own of Marana Water Department (Marana ~~%atrr~ 2010 Potable ~%at€r System Master Plan is a campreliensive planning document used to project the infrastructure and water resource requirements far the Town of Marana. This executive summary is ta~provide an overall picture of the Marana Water's potable system in terms of system demands and infrastructure requirements including wells, reservoirs, and booster stations. The approach for the Master Plan is to evaluate the system an a capacity basis to determine the needs of existing and fixture customers, to set forth a schedule fox the construction of new capital improvements, and to provide an estimate of the cast for the required improvements. The cost estimates can be used in the development of the budgets, rates, and connection fees for Marana Water. lPLA1VIYI~t(: E~R~+a'4 The p':-~nnng area for the Master Plan i~ i~?.ec;,;:ied on ; ._~ The planning area is similar to the planning area used in the Town of Marana 2007 General Plan, excluding La Qsa, areas served or to be served by other water providers such as Tucson Water and Red Rock, and areas anticipated with low development. potential As depicted on ~ 3, the Marana Water. planning area is situated in bath Pima and Final counties, and encompasses portions of both the Tucson and the Final fictive Management Areas (AMAs). Marana 'Water has evaluated potable water demands within the Town of Itifarana 2007 General Plan area, including those demands served by other water prOVlc?c rs. ; depicts the areas anticip..=rc~a t~, be served by different. water providers and their associated buildout potable water demand projections. Marana ~~ atcr is projected to serve approximately 61,55 acre-feet per year {11FY} of potable. water demands at buildaut within the 2010 water master planning area. In comparison, the potable water demands far the Tucson 't~'later intended service areas within. the-Town of Marana 2007 Gerterai Plan area are projected to be approximately 7,t379 AFY. t~1`~1~. PSSL7 NE;~. The Marana Water planning area is separated into pressure zones based on elevation. The pressure zone delineations are typically consistent with zones used by adjacent municipal water providers. The zone boundaries are established at approximate 100-foot elevation differences. The overall I~larana ~'^.t~r .pressure zone delineations are shown on Based on elevation, the buildaut Marana Water system is separated into ten (10} pressure zones: the V, W+, X, ~', Z, A, B, C, CR (Continental Reserve), and PR (Picture Rocks; Zones. 'T'he Marana b~%ater X Zone consists of four subzones {X1a, X1b, X1c, and X1d} that are contiguous in area but are not anticipated to be uiterconnected within the 5-, 10-, and 20-~~ear plaru~ing horizons. The Y Zane includes. three subzones (Y1, Y2, and Y3) that are non-contiguous, and the Z Zane includes two subzones (Z1 and L2) that are non-contiguous. ~"iR© II~P`11A.SII~T 14larana Water has coordinated with the Tawn of Marana Planning and Zoning Department to develop population and growth projections far its service area. Using the 2007 General Plan and assumptions regarding land use densities, Marano Water is projected to serve approximately 169,604 equivalent dwelling units {BDUs) at buildout, including approximately 74,532 residential units. Based on the census data of 2.7 persons per residential unite in the area, Marana 1~Jater is projected. to serve approximately 201,200 people at buildout. The rate of growth within the 5-year {2015} and 10- year (2020) planning horizons is based on Specific Plan growth information provided by the Tawn of l~Sarana Planning and Zoning Department,. The rate of growth between the 10- to 20-year {2030} planning horizons is assumed at the same growth rate as projected v. ithir, the 10-year planning horizon. F ~°~' ~' '~#' ' -below shows the existing and projected water demands for 2015, 2020, 2030 and buildout. StudySe sion; SEpten~~~r21~41~O11o Page z~vf~~ ,,,;~ r€ (-.st,a ~I~~1 ~ ~> ~. ~~; w~ , t - Y v A 4, J> ~~.~, ECUTlIw ~lJ AFiY Page lrs-2 Figure 1. mater Remand Projection (2014 Potable Water Master Ilan) ~~;,~0 ~°;~t 554 b0,000 __--- -- ~ a 56,~Of)- ..,. : ._ .._ _ - T _....._ ............ ___ _____~~__~. _ 3 . A / __.:~ _ # ` .~. ._ _._. .~_. ,% ~~ 20,x(`6 ~ -" 302 :'' 10 t ? ~' , _ - ~_ ' i 1,000 !~ ~ ~6,'~7€~ ' ' i- --.. ~ ~'~ d : Exisitng 2013 2020 2030 Bu iidout A'CR 1'STEt~i I}~:a~1A'V.1) PA'1"1'K:' Potable water systems in the southwestern United States are generally designed to accommodate peak demands. Peak day demands (P~?D~ are generally twice the anrnial average daily demands and 1.5 times the peak a7 eonth average daily demand. m ~: shows the lVlaranu `;=; titer's potable water deliveri~~ in 20Q9 (by month}. _~~ Figure 2.2009 ~'K'ater Demand Summary {Per the Marano lr'ater ADWR Annual Report) 250 2oa 150 A 100 J b I I w 50 0 Jan Feb Mar ~lpr lYfay Jun Jul r1,ug Selz Oct Nov Dec 2009 ~..._ ~~ --~~..~, ._...---- -----.~...-----r~~-- r-~--r- ~~ Study-~g~5io~:-Sejt'rt~r}~bn`%3'~Ei~Oi}0~~~~a9~s''A[Ga c ,~.`.~_tiE i i;~-, °:c.r . .~~ ... .. ~fI3d1GUdU€.+ltNt't ~'.,'~', a i~ AF~~~ ~~~/ aftJ'I"IV l1M AFi Page ES-3 d,LS A complete evaluation of the well, storage, and booster capacity requirements for the Marano mater system was performed in the Master flan. The well capacity requirement is based an providing PDD with the largest well out of service. At buildout, the projected PDD' far Marano eater is approximately 76,322 gallons per minutes (gpm}. In addition, a total of 9,100 gpm reserve well capacity is anticipated, resulting in a total well capacity requirement of $5,422 gpm far Marano Water at buildout. Marano Water currently has an existing well capacity of 15,417 gpm. Assuming the existing Marano Mater wells remain the same production capacity, approximately 47' .additional wells at a capacity of 1,500 gym each will be required to meet the well capacity requirements of Marano Water at buildout. T® G Storage capacity requirements far Marano ~~=eaer are based on 1.5 times of the Average Daily Demand (ADI?}; plus fare flaw storage requirement. It is recommended, when practical, at least 25 percent of the ADD (if not all} be stared in gravity reservoirs. Gravity starage provides operational flexibility and reserve during emergencies such as sustained power outages. The storage recluiremenl for Marano i~r'atcx at buildout is appxosirr~ately $5 million gallons, out of which 26 million gallons is recommended as gravity storage. Marano Water has an existing storage capacity of approximately $ million gallons. To meet the storage capacity requirement at buildout, 77 million gallons of additional storage will be required. C',AI'k"'~[. I~'11'R~VN1k~;~1TS PJG'['~ The 10-year and buildout Capital Improvement Projects (GIP} for Marano Water have been developed in this Master Flan so that the costs far the improvements can be allocated to the individuals they serve. It- is noted that the cost estimates are based on present day prices for the involved design and construction. These values will need to be properly inflated. when preparing budgets and securing funds. T'he present day cost estimates for existing system upgrades (to bring the water system up to the Marano Water's current standard of service is approximately X7.0 million. The majority of these projects are water main replacements system in the older service areas. Because these improvements are required within the existing system and may be considered as operation and maintenance related expenditures, these upgrades should be generally funded by existing water system rates. Present day cost estimates foz growth-related 10- year and buildout capital improvements are approximately $26.5 trillion and X143 million, respectively. The cost estimates far gravity storage and transmission mains are approximately $67.4 trillion at buildout. The cost opinions exclude Chase costs required for the delivery and treatment of alternative water sources. The cast components associated with the implementation of the growth- related improvements are generally funded by impact/connection fees allocated to future Marano '4~+;°~atez customers. Bfltt sTATi®N8 Booster ,ration capacity requirements are based on providing PDD plus fire flow or peak hear demand (PH.D}, whichever is greater, for the pressure zones without gravity storage. The booster station capacity requirement may be reduced to providing l'DD for the zones with. adequate gravity storage capacity for fire flaw and peak hour fluctuations. The capacity of each booster station is recommended to be 3,000 gym ar less to minimitie the area of impact when the booster station is out of service. Approxunately 35 additional booster stations, ranging from 1,500 to 3,000 gym, will be required for Marano Water at buildout. ~~ Study-„ ~~;~~i. ,$~~tar1117e~ t t~~ ~~~~ Sy:~tc~.~~ l~:~sier €'33~ ~~ , y c i~i1T2~ha ~~ ~. ,:~~ ~. ~~ N N r ~ X C ~ ~ ~ ~ C7 N ~ Q, ~ \ ra ~ ~ ~i ~ 7 ~ :'~ ~_` ,..~ r r~ ~ _, >. K e+t _ ~ j ,L ~ j ~i (D w Y, ''~. Z. r. k;;i t S''s~ _' ? w. ~~ ~. ~ ~ ~ ., 4, ~ - ', ` S~. - ~.-»»..- ~.... -..,,~~~~~ ~. ~ ~ «~:..x - 4 ~~ ~3 F?..,. ~''s, ~~~~ ~.-: Y'~~t f~ g ~~ ~ ~ ~ ,u~ _.:.....__ __ ____ "..._ _...~....:.~ , . _ _ s ~... ~ i i r ( ~~ ~~ ,: ~~,~ F _ ~ _ r. o ~ i f.: ~ ~ ~ ~ ~~~ 4 ,~ ~' ~:.r. ~ R~i.. '~ r " ~ S ' ~'tr r/ f~ ^ ~ _ { r~~r~.. i ~ ;fY ~I M t ~ ,.. t~. ~ i k ~ I ~ ~... ~..» ... ~ ~ ' ~ ~ ~ ~. - ~ 1 . `~ t ~ ~~ F .~<, - ~. k ,-,r ~ k~ .~y~ r «~ a < ~~Y e~ . ''y~.. ,{~ ,w~ ~~+ '~ ~ t '~f _ .1 x. T~ o _-~'~ ~ v N~ i a ~'r I I r t r (~ r I ' I .r r/ .____~ ~ -~ ~.~ ~~_r ,_, ,. , _ . N •,~ i ~~' cn ~ ~ ~ ~ ~ ~ a ~ o ' 7? ~v ny ~ d ~ ~ ~i ngi' ~ a G can ~' ~ ~ ~ a, ~ ~ "U ~ ~ ~ ... ~ ~ ~ ~ v y cr d ~ Q .w m ~ ~" ai o ~ .mow N ~ `: pX' i° ~ ~ a ~ ~ o ~ ~ `~' ~ ~. ~ ~ -~ ~' at b ~ ~ e~ ~ CU 0i ~ p ~ ~ "~ ~ d nei ~ u ~~~ _ F ,~__„r ~ ~ ~ ~ ' T -~ I ~- - ~ I =~ ~ ~i _ ~ ~ ~ ~ l ~ L ~ ~ ~ ~~ 1 ' ~ I ~ I - I ' ' ~ ~ ~~ r ~ ~ ~ ~ r + i ~ -~ ~ ~ ~ ~ J ~,.~ ~ y ~ ~_ _ +_ y ~J `^ 1 r~ ~ ~ ~ - - - - - v W ~ ~. ~ _ ~~ DO ~ p ~7 ,=r ~ 7 o r c~ D ~ m tD ~ O C N O O ~ p C X i ' ` ~ ~ O ~ ~ n z - N 0 O V o ~ a o 0 0 ~ ~ ~ o ~ c ~ ~ ~ ~ Ly ~ ma N ~ 7 o .,. . ~ ~ ~ y, , ~, ~ ~ v ~ o ~ , ~ ~ ~ ~ ~ ~ ~ ~ ~ N N 0 ~'' N N ~ 7 D ~ LU v 7~ N N p~ ._. p ~ n D m v ~ ~ v 'gy ~ ~ ~ ( p rt ~ ~ ~ N (D ~ ~ • ~ ~ v ~ ~ 0 ~ W ~ ~ q! ~ O ~ .-~; a m ~ ~ ~ ~~ R ~~ ~~ ~n =^ ~. . o ~ „n x N O '^S m ~ x ~ s ~ is m ~ ~ ~ w ~, ~. m ~; N N U n rC c i~ 'x 'G G 0 iG '~ N ('C C (D m w x a x m N '~ N ..l ~, X Q W a c~ r ro <,,, - it2 o - --:-~=-~- z o N -< X ~ < v t~ C7 W D c + ~ ~ ~ o~ c~ ~ ro 1.1 I°r~ratl+~~ctc~N Tavm of Marano ~~'ater Department (Morena 1~'`ater} provides water service primarily within the corporate limits of the ~[ own of I4farana {the'Town}. Currently, Morena 1'i'ater serves approximately 13,00(1 people and has about 5,OC~0 resideb~tial and commercial customer accounts. The Marano Water service area is expected to expand as the "Town grows. Currently, Marano ~~!ater relies on groundwater far its potable water supply. Marano Water strives to seek additional renewable sources of supply such as Central Arizona Project (CAP) water and reclaimed water to achieve safe yield set forth by the Arizona Department of Water Resources (ADWR). The primary goals of the 2010 Potable Water System Master Plan are to evaluate the existing Marano Water potable water system, identify areas where the existing system need to be improved, and to project future demands and associated infrastructure requirements. The Master Plan is the key guidance document far Marano Water to identify the capital components required to functionally and adequately serve both its existing and future customers. It is essential to make a distinction between these two elements as it is the Town's policy that new growthJdevelopment pay for itself;.. This places the financial burden of growth-related water infrastructure on future customers. `T'his Master flan provides the plannuig and capital cost data required far Marano Water to re-evaluate its impact fee rate structure projecting forward. Another goal of this Master Plan is to identify and define key policy issues and present a plan to effectively manage those issues. This goal will be accomplished by defining the key water system planning elements that are most important to Marano Water, evaluating the existing system fox service and upgrade requirements, and plantung the capacity and capability of the Marano Water infrastructure to provide appropriate service to the expanding service basis. The approach of this Master Plan is first to examine the current applicable regulatory environment and identify the regulatory constraints to which Marano Water must adhere. Based on the regulatory requirements, the Marano Water policies are presented. These policies include the definition of the water service area, the planning horizon envisioned in this Master Plan, the criteria used for infrastructure development, and the growth projections used to develop this .planning document. Morena Water has implemented policies that meet or exceed the standard of service for potable water as required by federal, state, and local regulations. An extensive coordination effort with the Town of Marano Planning and Zoning Department allowed for the updating of existing land uses and population projections throughout the proposed Marano ~~-'ater service area. Planning projections provided by the Tnwn have been used to create a general picture of the Marano ~'Kjater's infrastructure requirements over the next 5,.14 and 24 years, as well as at buildout. Using current and future system requirements, a comprehensive water system plan has been developed to define the capital improvements required for the water system at the 14-year planning horizon and at buildout. Cost opinions for the infrastructural improvements have also been developed and an implementation plan for the construction of the improvements is provided. As with all plantii.€ig documents, this. document is intended to be a living document, i,e., a tool that is flexible and fluid and is subject to change as growth patterns and infrastructure zequirements change. lJpdates to the Master Flan should be achieved Frequently to accurately reflect the new planning constraints that Marano Water will face in the future. 1.2 K 1's~t1E5 The development of a Master Plan requires defining key issues and policies early in the planning process. These policies dictate flee required water system layout, facility sizing, reliability, and costs of the required infrastructure. The existing policies have been continuously re-evaluated throughout development of this Master Plan by the Town. Infrastructural sizing and the associated costs developed via comparisons with those of other local water companies of similar size/lacatonjnature) were used in evaluating the future needs of Marano Water. ~. stud~s~,s~4t~, ~~(~,nt~~,~ a-F~acre~~~f6~r ~:t:_:+~ ~~ s'c: } ~~-' ~...~ ~: ~~ a T ~ ~ VFtVIE 1.3 WATk:It SYSTEM PLANNING flRlt) The planning horizcans for this document .are 5 years {2015), 10 years (2020), 20 years (2030),.. and ultimate buildout. The Master Plan will identify current conditions and water demand projections for the years 2015, 2020, 2030, and for projected buildout ~as defned by the 2007 Town of i~farana General Plan. These timeframes are consistent with the planning horizons defined by the 'Town's planning process. Potable water demand projections on a per-zone basis are provided for each of these horizons. These projections allow for the development of a capital improvement program anti for the phasing of the funding, design and installation of the required infrastructure. l.4 A.~iMITS C1F° A°1E`E[~t SIEYI(` EA This. Mastex Plan defines the I4Sarana \~'ater buildout service area based on the "T'own's 2b07 General Plan, excluding La Osa, areas to be served by Red Rack, Tucson L~'ater, other water providers, and areas anticipated with low development potential. The buildout service area is flexible, and may vary in th.e future, as conditions require. Marano Water reserves first right of refusal for new service to all new development withitY its corporate boundaries. 1. A'TEbt EfliJRCES ANI- EVCIPMEN'T Marano Water currently relies solely on groundwater £ox its potable water. The system's existing well fields .lie primarily within the Santa Cruz basin. The well field systems have historically provided a lugb- quality and reliable source of water. Marana t~3ater has an Assuxed Water Supply. {.~~~5) Designation with AD~~'ll, and is a member of the Central Arizona Gro~rsadwater keplenishment District (G.AGRl~}: To remain consistent with its Designation of AWS, Marana L~G'ater will ultimately be required to use sources other than groundwater to meet its replenishment obligation. Marana Water currently has rights to 1,528 airs feet per year (AFI~ of CAP water. Concerns have arisen regarding the continued mining of groundwater in the Town and greater Pima County area. These concerns include the long- term decrease of groundwater levels, resulting local subsidence, degradation of water quality, increased pumping costs, and the need to build new and deeper wells. For these reasons, as well as general Page 1-2 public opinion, the Town and other surrounding communities have been cooperatirxg to irxvestigate additional renewable water supplies for the northwest area. Entities involved in this. effort include the Town of Ivlarana, Metropolitan Domestic Water Improvement District {MD~~'II~}, Flowing Wells Ixrif;atic~n District, Town of Oro galley, Puna Count;-, Cirlr of Tucson, Bureau of Reclamation (13OR}, and Central Arizona Water Conservation District {CAWCD}. One goal of this 2010 Master Plan is to provide a distribution system that has the flexibility to accept water from one or moxe treated potential renewable water sources as well as from its existing groundwater well system. This will provide Marana Water with the flexibility, ~ti-rtlr minor infrastructure. adjustments, to accept soucce water from a multiple number of potentially acceptable alternative water resources. l.b VVAERAt,tt~ G~tt,~'TtNS The Safe Drinking l~'ater Act {SDWA} establishes minimum water quality standards for health and aesthetic water quality considerations. The SllWA identifies enforceable maximum contannant levels {MCLs~ for health-related constituents and non- enforceable secondary maximum contaminant levels (SMCLs) for aesthetic-related constituents. The SMCLs are not federally enforceable. It is the polio.- of Marana Water to comply with and when practical exceed the requirements of SDtk~'A for potable water. Marana Water regularly mr>r.~tars the SDWA regulated constituents and is in compliance with the regulations. A summary of the regulatory requirements is identifr+ed in Chapter 2, Regulatory Requirements. 1.7 S5'S'TE M~'It""" °-v ~'t}. EXTSTIN CTJST®MERS This Master Plan idensitzes improvements necessary to bring the Marana ~Uater system to the levels of service defined by the applicable system-related policies. These improvements are related to meeting capacity-related needs as well as replacing aged and outdated facilities. The upgrades to the existing system are considered operational and replacement- based, and are funded by water service rate generated revenue. ~~ Study Session -September 1d. 2010 -Page 33 of 68 Town of Mari,-a ' ;~~ ; ~ :::;, ~~,,,, ~u<~#em fi~asterPt~n ~ ~~' _`', v u. r,n-^~~, ~: ,..,, ~PTER '1 " ~ ~~ ~ ~ E.~4 Y(E Fage 1-3 1. SY'C7EMI 1ttJVN'1'S F()ft {~t?~YT`H T1iis Master Plan identifies growth related improvements needed for Marano Water to serve future customers based an the applicable system- related policies. The funding for improvements supporting growth is connection fee-based and is generally funded by future development The projected budgets for growth-related facilities should remain flexible and evolve u,~ithia~ each fiscal year to meet the constantly changing growth scenarios. 1.9 Ak?'I'I'r~I, f+1'?fP[T[JES tYT1''Iibiiiw€C Capital improvement funding requirements are defined by the customers serviced by the project. Projects that improve the existing system are funded by rates. Projects that are to support future growth are funded by impact fees. The goal of the capital improvement program is to develop an environmentally sound and efficient water distribution system, and to create the greatest economic benefit to the existing. and future customers of the water utility. This program must result in swell-planned and efficient water systctn that can be constructed in a properly timed and orderly fashion to meet the sys terra's expanding needs. With the system development fee revenues available, Marano ~~r'ater may sell bands, or supply other financing, to provide the up-front capital required for constructing reservoirs, booster stations, wells, new source treatment and delivery, and major facilities. Project developers will continue to provide up-front capital to construct water system transmission main extensioF~ to their property and, in some cases, provide additional capital for other water system improvements if funds Exam Marano Water are not available. many years may pass before the system development fees collected will pay the water utilitty in full for the Rant costs it has incurred. This requires that the cost of financing be included in the system development fee. A detailed analysis based on population and growth projections is required to balance the up-front capital financing of projects and repayment obligations of the system developmen€ fees. If bond sales are used, it is important that the timing and amount of sales are scheduled to best assume that the projected connection fee and development fee revenues will be adequate to pay the debt service of the bond sold, all in a timely manner without the ratiltzatian of other funding resources. I.(I t1~1P+IKATld3z~t P'{3Lt`Et' Marano Water requires all ecanunercial and industrial propert~r, residential subdivisions,. and single family residences within the Town of Marano General Plan planning area but outside of the established Town limits to be annexed into the Town prior to obtaining water service from Marano t`Voter. To meet the requirements of the Marano eater design guidelines and Arizona Department of Environmental Quality {ADEQ) criteria, the facilities required to serve a new development project must be constructed and operational prior to connection. To address this issue, Marano Water has implemented impact fees that are paid at the time of meter hookup. Collected fees reimburse the casts for constructing wells, reservoirs, transmission mains, and boaster stations that support new customers. This requires a large outlay of initial capital to build facilities. before the first dollar of system development fees is collected by Marano Water. In addition, based on the projected buiidout, SYUd`f 4Rf-I~+~~1$~2:~fl Page ~~D(~E /..'', ~ ;: ?r #~ ;~_..,,, i 5 } $ra31fG€~1ft1}Rlif s .~ ~ _s~ ~ „v ~ a,^~t~ /~. ~MZU~ 2,1 I+~;T}E ~ 1~t;1Rt~Ei~°tS 2.1.1 Safe Drinking Water Act (ST3WA) each July thereafter. As of July, 2010, Marano t~Tater is in compliance with a1i. these reporting requirements. The latest annual report is available online at the Marano 1~'ater website. The Environmental. Protection Agency (EPt~', has established regulations far water quality in potable water supply and dzstx°ibution systems based on the requirements of the 4D~'t A. `I'he SDWA was signed into law in December 1974 and has been amended several tunes since it first became law. The SD~;I:~. requires that the EPA. establish legally enforceable MCIs far a number of contaminants and continuously identify and set MCLs for additional contaminants. Currently, MCLs have been promulgated for inorganic chemicals such as arseiaic, cyanide, lead, and copper; organic chemicals irs the classifications of volatile organic chemicals, pesticides/herbicides/polychlorinated bi-phenyls (PCBs), synthetic organic chemicals, treatment chemicals, and byproducts; radiological cantarninants~ turbidity (for surface waters and groundwater influenced by surface waters); and nnicrobiologieal contaminants. The EP~~, also established non-enforceable SMCLs relating to contaminants that may adversely affect the aesthetic quality of drinking water. The authority to enforce the MCL standards w7tl~in Arizona has been delegated to the State of Arizona, eater quality programs are overseen by ADEQ. The followuig lists some of the rules most relevant to Marano !`4''ater under the SD~~~A: High nitrate levels have occurred in areas of the lYSarana l~'ate:r service area mainly due to agricultural fertilizer runoff and/or septic system effluent seeping into the groundwater. The current MCL for nitrate is 10 parts per million {ppm. All currently active Marano potable wells meet the Nitrate standard. In January 2001, the EPA adopted anew arsenic standard, reducing the drinking water standard from 50 parts per billion (ppl~) to 10 ppb. Public water systems (PWS) were required to comply with the new standard in January 2006. As of July 2010, all Marano Water potable wells meet the new standard. In November 2006, The EPA published the new Ground Water Rule (GWR) to provide for increased protection against pathogens in PWSs that use ground wrater sources. The EPA.. is particularly concerned about ground water systems that are susceptible to fecal contamination, Community Watez Systems (CWSs)', that rely on groundwater supplies began complying by December 1, 2009. More details regarding the rule requirements. and implementation are provided. in Section 2.1.2. The E].aA has developed a rule regarding levels of radon in drinking water. The rule includes MCLs and monitoring requirements far community water systems. Currently, the EP~~~I~TJEt~ does not regulate radon in drinking water. 2.1.2 Ground Water Rule (GWR) 2.1.2.1 Rv1e Regzutercterlts The requirements of the GWR include the following: Completion of regular sanitary surveys of PWS to look for significant deficiencies in key operational areasa Triggered source water monitoring when a system does not provide treatment that achieves at least 99.99 percent (41og} inactivation or removal of viruses and identifies a positive sample during its Total Coliform Rule (I"CR) monitoring and assessment monitoring {at the option of floe state) targeted at high-risk systems. Implementation of corrective actions by ground water systems with a significant deficiency or evidence of source water fecal contamination. Compliance monitoring for systems to ensure Water suppliers are required to prepare annual installed treatment technology reliably achieves water quality reports, termed Consumer at least 99.99 percent (4-log} inactivation or Confidence Reports, for their customers. The removal of viruses. first reports were due by ©ctaber 1999 and Study Session -September 14 2010 Page 35 of 68 C~ ~, ,. ,. ..i1 ~.~~ ~f~;~~. ~.. 2..1.2.2 Sanitary Survey The sanitary survey is a major component of the GWR. 'The sanitary survey regulations have long been in place for surface water systems; however, the implementation of the GWR extends these regulations to include ground water systems. The sanitary survey is a review conducted by the State. This review looks at critical components of a public water system. The rule defines eight components that must be re~-iewed during a sktrvey: Source 'T'reatment Distribution Finished water storage ~ Pumps, pump facilities, and controls Moritoruig, reporting, and data verification System management and operation Operator compliance with State requirements 2.1.2.3 hforzitorin~r There are three main provisions to the monitoring regulations of the GWR. Triggered source water monitoring Assessment source water monitoring Regular compliance monitoring Source water monitoring will. be required if a water system does not provide 4<log treatment and identifzes a positive sample during its TCR monitoring. If a system receives notice of a total colform-positive sample collected under the TCR, it must take a source water sample at every ground water source in use within. 24 hours. There is an exception to the source water sample requirement if the State can determine the positive sample was due to a problem in the distribution system, not the source. Further, if any uuual triggered source water sample is fecal uidicator-positive, the system must collect an additional five repeat source .water samples over the next 24 hours. It is at the State's.. discretion to require immediate corrective action to address contamination at those sites.: The GWR also provides. a provision for States to require systems that do not provide sufficient disinfection treatmentto conduct assessment source water monitoring at any tithe and require systems to take corrective action. For those systems that already provide 4-1og treatment to their drinking Page 2-2 water, the rule requires regular compliance monitoring ~ to ensure the instaIled treatment technology reliably achieves at least 4-l.og inactivation or removal of viruses. 1.2.4 Corrective Actlor~- The corrective actions include: correcting all significant deficiencies ~e.g. repairs to well pads and sanitary seals, control of cross-connections, etc., providing an alternate source of water, eliminating the source of contamination, or provide treatment that reliably achieves at least 4-log treatment of viruses, 2.1.2.5 I m p I em e n t a t r `c, n CWSs that rely on groundwater supplies have begun complying by December 1, 2009. As the State has control over the assessment monitoring, there are no national titnefrarnes associated with this portion of the rule. The EPA requires States must complete their initial round of sanitary surveys. by December 31, 2012 for mast CWSs. States will have until December 31, 2014 to complete the initial: sanitary survey for CWSs that are identified by the state as outstanding performers and non-community water systems, As of July, 2010, Martina l~'ater is implementing the GWR by conducting triggered source monitoring if a total coliform-positive sample is indentifted during the routine TCR monitoring. It is Ii~Sarana ~~later s policy to retrofit its existing system as funding permits to provide 4-1og treatment, and to require all its new sources to provide 4-log treatment. 2.1.3 Public Health Security and Bioterrorism Preparedness and Response Act The Public. Health Security and Bioterrorism Preparedness and Response Act (PHSBPRA) of 2002 amended the SDWA to' add a number of new requirements for community water systems regarding; drinking water security and safety. The new section of the SI)t~A requires that water systems serving over 3,300 persons must conduct a vulnerability assessment to determine the susceptibility of the system to terrorist attack or other intentional acts intended to substantially disrupt the ability of the system to provide a safe and reliable supply of drinking water. A vulnerability assessment helps the water utility evaluate the - t, wN p Study~;eys~q- ~tt~rb~# ~;f €~i9e $~~E~$ ::' .. , _ < ~ . ~, ~ ~ ,. „ i3 ~.t'~ ~~~: susceptibility of the water supply, storage, and distribution system, and its electronic or computer systems to possible threats and determine risks to the community based on potential threat scenarios. The assessment can help the water utility identify and prioritize corrective actions to reduce risk of loss and damage due to hostile acts. Corrective actions may include security upgrades, modifications to operacionai procedures, and policy changes to mitigate the identified vulnerabilities. A vulnc~:ability assessment. contains the following clemenes° description- of the water system, identification and prioritization of adverse consequences to avoid, determination of critical system assets, assessment' of the likelihood of malevolent acts, evaluation of existing response measures, anal*sis of current risk, and development of a prioritized plan for risk reduction. The Pl-1SBPRA also requires that the community water system serving a population greater than 3,3QQ prepare or revise an emergency response ..plan that incorporates the results of the vulnerability assessment. This emergency response plan must identify procedures to be used in the event of an intentional attack on the water system. The plan has to be completed no later than six months after the completion of the vulnerability assessment. As of July, 2Q1®, a vulnerability assessment and an emergency response plan .for Morena iY~ater have been completed. Marano «ater is currently in its implementation phase to conform to the PHSBPRA. 2.1.4 Occupational Safety and Health Administration {E}SHA) The OSHA. is a federal agency created to ensure safe and healthful workplaces. State and local government workers are excluded from federal coverage under the Occupational Safety and Health Act, but are covered under the State of Arizona Workplace Safety and Health Progtam, which includes, by reference, the lcderal Occupational Safety and Health Standards. The state program was developed in accordance with OSHA requirements and approved by the U.S. Department of Labor. This program includes compliance activities to ensure employers are complying with the Arizona Occupational Safety and ):iealth Standards requirements. The requirements of the 1'lrizona Division of Occupational Safety and Health Pace 2_g (ADOSH} contain many subjects related to working conditions, including work surfaces such as ladders, exposure to hazardous materials, exposure to noise, and safety training. These requirements pertain to both Marano Water employees and personnel employed by contracting or consulting companies working at Marano Water sites. The state program also includes a Worker's Compensation Program that relates to medical benefits and compensation for job-related accidents, illnesses, and injuries. 2.2 STATE F (~#i~:IYTJE',N"I'S Arizona Revised Statutes (ARS) Titles 45 and 49 were developed by the State of Arizona to deal with subjects relevant to the op~ratson of a municipal water system. ARS Title 45 describes the duties and programs of AD~Y~R. ARS Title 49 describes water quality control, and is the primary regulation fox potable water supplies. 'Title 49 designates the ADEQ as the agency responsible for ensuring the health and safety of public water supplies. The Arizona Administrative Code {AAA} consists of rules and regulations used to expand and define the provisions of the ARS. AAC Title 18 relates to environmental quality, and covers the subjects of safe drinking water, water quality standards, and operator certification. 2.2,7: Arizona Department. of Environmental Quality EAI31~C2) The Environmental Quality Act was established in 1986 for the purpose of describing the responsibilities of the Al ~l(~. $road authorities were established for the management, control, and regulation of sources that may impact water quality. The ADEQ? was required to adapt numerous standards far surface and groundwater quality, to define aquifer boundaries and to establish aquifer classification procedures. The ADEQ has provided a number of guidelines for the design of water systems to assist water suppliers in constructing water systems that provide safe, reliable water service. The Pima Co~urnty Department of Environmental Quality (1~CDIt7, } currently has delegated authority over the lYlarana Water. system for compliance with ADEQ regulations for new construction and sanitary- surveys. The r'~DEQ administers local authority over the Marano Water system for testing and compliance with the EPA water quality standards. The following information has been summarized from the AAC Engineering Study Session - Sagtember 14; 2010 Page 37 of 58 ;:. -~ ~f ~ ,,~_~:~~ <<y~tl ~ .>._~ ~vst~ttt ~Aaatsr Plan _ ~. ~.~, _. ... ,.. 9 t.~F:~S ~k; ,~" '`?°~~E ,2a ~UAT® Y ~~=~.k6~~lIE TS Paget-4 Bulletin No. 10 -Title 18 and various ADEQ guidance publications; provided using a private pressure reducing valve (1'It~ on the service side of the connection. 2.2.21 I)rinkirrxg 1~'aterQualityRequirerzrenrs The mission of the Arizona Safe Drinking Water Program is to ensure the delivery of safe drinking water to users of public water systems through regulatory oversight, technical assistance, and public education in facility planning, design, construction, operation, and compliance monitoring, and to preserve and protect drinking water sources. The Drinking Water Program is federally mandated to ensure safe drinking water supplies for the public, Arizona has primacy for this program and, therefore, enforces the federal regulations. in addition to state requirements. The Wellhead Protection Program (L't~-1P} is incorporated into the Drinking Water Program and involves the promotion of voluntary programs iti communities aimed at protecting aquifers. for drinking water use. 2.2.1.2 Pressure Requirements Pressure extremes in water systems result in a potential for contamination of the water 'being delivered by the system. Low pressures may allow contaminants to enter the water system. Marana `e'ater has a baekflow prevention program as defined below ( 2.2.1.4} to help prevent contaminants from entering the system. High water system pressures may cause ruptures or bxeaks. The normal working pressure in a distribution system should not be less than 35 pounds per square inch (psi) during peak hour flow conditions. The system shall. be designed to maintain a rriinifnum pressure of 20 psi at ground level at all points in the distribution system under all conditions of flow. This requirement is generally interpreted to mean that the minimum residual pressure must be 2t} psi at each meter in a fire-flaw event from any hydrant during a flow condition of peak day flow plus fire flow. Maximum pressures of as much as 12~ psi may be allowed in small, low-lying areas not subject to high flow rates and surge pressure, provided pressure- reducing. equiptc~ent is installed. The International Plumbing -Code 7PC) requires the water pressure within the individual property owner's plumbing below $0 psi. Increasing or regulating the pressure fxom the meter to the customer is the responsibility of the customer. Pressure reduction is generally 2.2.1.3 Regulatory Staxage Requirements The minimum storage capacity for a community water system is required to be equal to the average daily demand during the peak month of the year. However, this requirement may be reduced by aquifer storage components when multiple wells are used to provide source water. Storage capacity may be based on existing consumption and phased in as the water system expands. Marana Mater has adapted the storage requirement of a minimum of 1.5 times annual average daily demand (ADD} plus fire-flow requirements. Storage should be provided in the zone where the usage is required ar in a location where it may be readily transferred to the zone of use. Out of the overall storage requirement, 25 percent is recommended to be provided as gravity storage. The gravity storage will provide Marana Water with operational flexibility, system reliabilitjs and potential operational cost reductions. 22.24 BacktlawPreventiorx Requirements The AAG requires water suppliers protect the public water system from contamination caused by backflow through unprotected cross-connections by requiring flee installation and periodic testing of backflow prevention assemblies. The law requites that a backflow preventer be installed whenever there is a passibility that cross-connections might occur or a foreign substance might enter the water system, Such substances include chemicals, chemical or biological process waters, and water from public water supplies that have deteriorated in sanitary quality. Backflow prevention assemblies must be tested aiuiually, and the test records must be kept far a period of at least three years.. In line ulth the AAC requirements, the 'T'own of Marana Code describes the specific requirements of backflow prevention and cross-connection control for the Marano Water system. 2,2.1.5 Emergency C?peraung Plan {EOPJ It is a requirement of the ADEQ that each community water system develops an EOP and keeps the plan in an easily accessible location. A water supply EOT~ is also required as part of the SI}W'A WHP program and under the PHSBPRA.. The ADEQ has prepared a Drinking Water ~ 4N R Stud:~,~Si2~;-ir~f;}~~~~#~~3~~~ r` .._r'; *. ;a~~ '~'. '' <_ k i PT~R ~: GLATaRY EQIJIR> MTS Pane 2-5 Emergency Operations Plan Checklist to provide specific guidance regarding information to be included in the emergency plan. This checklist has a specific requirement for utilities to identify how they will maintain the system without their largest supply source. The plan shall detail the steps that a water system will take to assure continuation of service in the following emergency situations: Loss of a water supply source. Loss of supply due to major component failure. Damage to power supply equipment or loss of power. Contamination of water in the distribution system as a result of backflow. Collapse of reservoirs, reservoir roofs, or pump-house structures. Bxeaks in transmission or distribution lines. Chemical or microbiological contamination of the water supply. The EOP'should provide an overview of the water system (including system mapping}, establish personnel duties, identify emergency contacts and notification procedures, and delineate emergency operatingprocedures. The EOl} should also provide for alternate sources of water and identify crib€al s~rstem components and .spare parts. The PIdSBPRA also requires that each community water system maintain an EOP that incorporates the results of the vulnerability assessment, as discussed in Section 2.1.3. Marano VG'ater has developed an EOP and the EOP is being updated regularly to comply with the State's requirement. 2.2.Z& Clean TY~aterAct-Nat~on~l Pollutant Discharge Elirn.inatlon System {1VPI3ESj / Arizana Poltutant Dlschatge Elimination System AZPDES) The Clean Water Act ~CL~'r~,~ regulates discharges of pollutants residing in "pzocess" water to waters of the United States {waters; through the NPD"ES peranit program. The ADIQ has primacy fax the NDPES permit program, i.e., the state government now adn~ir7isters the program and issues permits through AZPDF,S: The AZPDES includes two types of permits: general permit and individual permit. The ADEQ issued an AZPDES General Permit on April 27, 2010 for De Its discharges, including those associated with potable water systems. <~cti~rities covered under the General Permit include: Operation and maintenance flushing, well flus}ing, line bxeak and post-repair flushing, and discharges related to system pressure releases and overflows. Discharges are requitred to meet all standards applicable to the receiving water body. In general, the AZPDES permit (both general and individual permit} requires the use of Best. Management Practices (BMPs to ensure discharges of pollutants to the waters of United States are Iuntted. 2.2.2 Arizona Department of eater Resources (ADWR) The AD~~R was created in 1980 to administer state tivater laws, except those relating to water quality. The AD~`t/R also explores methods of augmenting water supplies to meet fuhire demands and works to develop public policies to promote conservation and the equitable distribution of water. The :~I~~~rK oversees the use of groundwater resources under state jurisdir_tion and negotiates with external political entities to protect and augment Arizona's water supply. 2.2.2.1 Gt©undwaterManagement Code To address groundwater depletion in the Stag's most populous areas, the State Legislature created the Groundwater I~~fanagement Code in 1980 and directed the ADWIt to implement it. The objectives of the Code are to control severe groundwater overdraft, provide the means for effectively allocating Arizona's groundwater resources, and augment Arizona's groundwater supply through water supply development. The Code contains sig main provisions; The establishment of a program of groundwater rights and permits. A provision allowing far no new agricultural irrigation within the five {5} Active Management Areas (AMAs}. Study Session -September 14, 2010 -Page 3~J of 63 °- a +~~~ ~~e:~~~ ~ ,.. ~.. ~ . _.~ ~ r ..._ W. r ~j,q v t,~a~,a ~4;, RAFTER 2r ~G.,S~~~~C~`s ~C~k~l~~AIENT°S Pale 2-6 The preparation of five water management plans, one for each AMA. 'I"he development of a program that requires demonstration of an Assured Water Supply (AWS) for new growth. A requirement to meter/measure water pumped from all non-exempt wells. A program for annual water withdrawal and use reporting. 2.2.2.2 Active Management Areas Areas where groundwater depletion is most severe are designated as AMAs and are subject to regulation. There are five designated AMf1.s in Arizona, including the Tucson AMA and the i'inal AMA. The existing and majority of the projected Matana lY~ater service areas at buildout are within the Tucson AMA. The balance of the anticipated lbfarana Water service areas are within the Final AMA. The Tucson AMA has a statutory goal of achieving safe-yield by 2E325. Safe-yield means that the amount of groundwater pumped from the AMA on an average annual basis does not exceed the amount that is naturally or artificially rechaxged. The safe-yield goal is abasin-wide.. balance. Water level declines in one portion of the AMA can be offset by recharging water in another part of the AMA. The Groundwater Code directs the ADWR to develop and implement water conservation requirements for agricultural, municipal, and industrial- water users. The ADWR. develops and updates management plans fox each AMA. The management plans reflect the evolution of the Groundwater Cade, moving Arizona toward its long-term water management goals. The management plans establish conservation requirements for municipal, agricultural, and industrial water users. In each successive manage- ment plan, water conservation and management requirements are expected to become increasingly stringent. The Tucson AMA is currently operating under the Third Management Plan and is developing its Fourth Management Plan. 2,2.2,3 Conservation Requttements The AD~~'R develops conservation requirements wYth assistance from water users in the AMAs. Municipal water conservation requirements apply to water prvvic?ers, cities, towns, private water companies, and irrigation districts that provide water far non-irrigation uses. The goal of the municipal conservation program in all AMAs is to promote efficient water use. Matana ~Tater is currently enrolled and regulated under the i4fodified Non-Per Capita Conservation Program {MNPCCP} established in the Tucson A.MA's Third Management Plan. Based on the total number of residential. and non-residential service connections in the distribution system, Matana lY/'ater is regulated as a tier II municipal provider and is required to implement a public education program and five additional water conservation measures including providing new homeowners with low water use landscape information, implementing residential ulterior retrofit programs, customer high water use inquiry resolution, customer high water use notification, and developing industry partnerships on water conservation. The Tucson AMA Third Management Plan and other conservation-related state programs also cover a number of other requirements. that are intended to promote water conservation, includ~~g: ~ Along new publicly owned medians or roadside areas served by municipal providers, groundwater may only be used for watering specific low water-use plants. The ADW1Z maintains a list of approved low-water-use plants. The Third Management Plan restricts water use at turf facilities larger than 1(3 acxes in size, such as golf courses, schools, parks, cemeteries, and cominan areas of homeowners' associations. The amount of water that turf facilities can use on an annual basis is specified by a formula in the plans. The municipal restrictions for turf facilities are the same as those that apply to industrial facilities. The Third Management Plan contains restrictions on the use of groundwater in artificial lakes. A 1987 State. Law (the "Lakes" bill} restricts the -use of groundwater to createjniaintain lakes, ponds, and swinnniiiig pools within AMAs. In general, new lakes in AMAs cannot be larger than 1,320 square feet - - ,,. stua~ ~~f eift~ ~_ tf? ~><~ ;~, ,_ "~ ~ r'1~ .~...~'~ ,. . .. ~, ._~e~ ~ - ji ,~~_ ClHAP7EFt 2: EIiI,.ATnY Ql.19Ft~MEt+dTS Page 2-7 unless certain exemptions apply. For example, the lakes may be filled with effluent. However, special permits are available from the ADWR that allow new lakes to be filled with poet quality groundwater or other water sources on an interim or emergenry basis. Lakes built before January 1, 19$7, and lakes located in certain public facilities, such as parks, can continue to use groundwater. Golf course lakes are also exempt from the law because they are regulated by specific provisions within the management plans. Private residential swimming pools cannot be larger than (3lyrnpic size (12,320 SF}. Resorts, motels, and country clubs can have several pools, but only one pool can be larger khan Olympic size, but not larger than 1 acre in size. Each large municipal water provider must maintain its distribution system and properly meter and account for all deliveree. mater losses may not exceed 10 percent. Small providers must maintain their systems such that losses do not exceed 15 percent. 2.2.2.4 Ass~rxed tT~atersc`uPP~3' The Groundwater Cade established requirements to ensure that water supplies are adequate to meet the ling-term needs of new development. The A`~~S Program requires the demonstration that sufficient water supplies of adequate quality are physically, continuously, and legally available far 100 years. In an AMA, anyone who offers subdivided or non- subdivided: land far sale or lease must demonstrate an assured supply of water to the ADy~'R before the land may be marketed to the public. T« receive an AWS certificate from the ADWR, a developer must demonstrate that: 1} water of sufficient quantity and quality is available to sustain the proposed develop- ment for 100 years, 2) the proposed use is consistent with. the management plan and the AMA management goal, and 3} the water provider has the financial capability to construct water delivery and treatment systems to serve the proposed development. Alterrlativel•, the developer can locate the proposed development withal the service area of a city, town, or private water companp that has already received a Designation of Assured Water Supply From the ADWR, If a "designated" provider serves the subdivision, the developer only need obtain a written commitment of service from the water provider. In 1995, the AD17CrR adopted new AWS rules, primarily to support the groundwater management goals. New rules associated with this program promote the use of renewable supplies, such as effluent and water delivered via the CAP, as a component of an assured supply. The rules require new developments to be based predominantly on renewable supplies. In 1993, the Arizona legislature formally created CAGRD to provide a way for developers and water providers to demonstrate an t14~'S and help the state meet the objectives of the 1980 Groundwater Management Act by repleftislung pumped groundwater. The CAGRD recharges groundwater supplies on behalf of its members in order to reach and maintain "safe yield" in the Tucson A112A. lbiarana t~;~'ater is a member of the CAGRD. The CAGRD is managed by the CAP, which in to is managed and operated by the Central Arizona ly/ater Conservation District ~CA"'J~CL?}. The CAy~i~CL~ is a municipal corporation, also known as a public improvement district. This quasi- governtnental entity was formed to repay the federal government fox the reimbursable costs of construction, and to operate and manage the CAP. The GAGRD currently replenishes excess CAP water for members to meet their replenishment obligations. 2.2.2.5 ~toundwater Rights its All~A~s A vital part of groundwater management involves identifying existing water rights and providing ways for water users to initiate new withdrawals. L~'ithin an AMA, an entity must have a groundwater right ar peztxnit to pump groundwater legally, unless the entity is withdrawing groundwater ft°am an exempt well tma_ximum pump capacity of 35 gpm}. Exempt wells may be used to withdraw groundwater only for non-irrigation purposes, and are generally used for domestic and landscape purposes. Exempt wells must be registered with. the ADWR, but they are subject to fewer requirements. than non-exempt wells within AMAs. In order to withdraw water from non-exempt wells in A.MAs, either grandfathered rights, service area rights, or a withdrawal permit must exist for the well. Study Session -September 14. 2010 -Page 41 of 68 ,~ ~~~ Tc,~~s~ of ..~ :, ~ ~ 20~lQ pot~bi~ ~~t~r Sir `.v=~ ~t . ' ~s;i . _....... v ,~~ ~h•1~% FIAPTER 3°EGIJL~TC?1° ~~~3,~~YINTS Users who pump groundwater from non-exempt wells in AMAs must also report annual pumpage to the ADWi~e This provision helps the ADW'R deterinuie how much water is being used and where it is being used. The Code also requires payment of an annual groundwater withdrawal fee. Revenues from the groundwater withdrawal fees are used for administration and enforcement purposes and for funding augmentation and conservation assistance programs. ~~'itlaclrawal fees can also be used for the purchase and retirement of grandfathered rights. .3 f~OCA Et}CTIi2N[ENT~ The Town of Marana is governed by an elected Mayor and Council, which have jurisdiction over rates, fees, and water management issues. The Mayor and Council are advised regarding water utility issues by the Utilities Citizen Advisory Commission, based on tl:e requirements and guidance set forth in the Town's Water Policies and ~~'ater T.~tility Code. The fut~caon of the 3ttlities Citizen Advisory Commssion is to act as an advisory committee for the Town Council on capital impravernent program planning and rate. structure formulation. The Commission reviews and makes recommendations on water system development, long-term water sources, capital needs, rate adjustments, capital budget and allocations, state and federal legislation regarding water-xelated issues„ expansion of utility service areas, and private water company acquisition. 2.3.1 Town of Marana Water Policies The 'Town of Marana Mayox and Council have developed water policies to provide guidance regarding the operations and finances of the utility. The Town's water policies, presented in the next chapter, discuss requirements for financing of the water utility, including setting water rates and other fees, system development requirements, acquisit=on of other water systems, water supply, management and development, and conservation. 2.3.2 Town of Marana Watei Code The purpose of the Water Code is to promote the health, safety, order, and general welfare of those persons served by Marana Water. The Water Code sets guidelines for providing water service to the residents of Marana and those served by Matana ~Y/ater but outside the Town boundaries. The Water Code provides the basis for the operations of the Pale 2-8 water utility, and describes the conditions that must be rnet to allow new construction, the agreements required for new construction or line extensions, and the method for review and approval for cc}nstruction of facilities by entities other than the 't`own. 'I"he ~~~:~ter Cade also includes the wa€er system capacity requirements, oversizing refunds, and service area inclusion and fees. Stud~Session , $Pptember 14, 20~Q Pepe 42 of fiR o~ ~~ ~ a ,._, Q aNAn:.s~ ~~~-~l -- a `~ Based on the regulatory requirements in Chapter 2, the Town of Marana has developed ordinances and palicies relating specifically to the opezation of its water utility. This section presents a summary of the palicies for service set by the 'T'own of Marana. 3.1 Note-~QTA[. 4'fTATF~ SYSTE~ri P®i~[t;'1r The goal of the Dater Master Plan is to provide the flexibility within the water system infrastructure to adapt to the varying conditions that will occur when irrigation demands are removed from the potable water syst~'rri. It is the goal of Marana Water to serve the majority of the service area's irrigation and turf demands via either a separate reclaimed or a non-potable water distribution system. The potable water system will continue to serve the existing and future large irrigation users until the non-potable water system is in place and operatianal. The potable water system will be designed to aperate both reliably during the period it is serving the large turf users and efficiently, following their removal. The potable water system may be used as a backup for serving the non- potable users in case of temporary non-patabie water system outages. This condition may be accommodated by the existing well system in the winter months. The weIls, boaster stations, and reservoirs will be designed, constructed, and phased. inter the system to eliminate major operational changes during the conversion of the large turf users to alternative water supplies, and to avoid large redundant facilities after the large turf users are removed from the system. .2 li+ I.ttE l~°OW €}LIGT' The Town of Marana is currently served by the Northwest. Fire District, and has adopted the 2006 International Fire Code (IFC). The 2006 IFC includes tables and formulas for calculating the requited fire flow for residential and commercial facilities. The fire-flow requirements for residential facilities are typically based on the development density, the square footage of the homes, and whether or not the structures are spxinkleted. Fire- flow requirements. for homes typically range from 750 gpm to 3,500 gpm, depending on the above conditions. The typical residential. subdivision has a fire-flow requirement of 1,000 gpm fox tiwu-hour duration for units having a buildable area of less than 3;600 square feet. ©ther requirements include fire hydrants with a maximum spacing of 250 feet between residential structures and the nearest fire hydrant. Cornmexcial facility fire-flow requirements also vary depending on the square footage of the commercial building, occupancy type, building material type, exposure distance to other buildings, and whether or not the structure is sprinklered. Typical commercial facilities within the Town of Marana area have fire-flow requirements from 1,500 to 4,000 gpm for atwo- to faun-hour duration. The fire hydrant spacing is generally • the same as far residential structures. The Matana Water service area includes a number of older subdivisions, which were developed prior to the adoption,fenforcernent of the IFC. These areas der not have the currently required fire-Ilow capacity. Per the IFC, these areas are grandfathered and not required to be retrofitted to meet the IFC standards. The lack of fire-flow capacity varies greatly in these older areas. Some areas are served by flinch mains with little Ere-flow capacity. Other areas have larger mains and existing fire hydrants but may .lack booster and storage capacity to meet the Ere flow and duration requirement. There are generally two considerations. to providing adequate fire flow to a neighborhood. The first consideration includes offsite requirements; such as the volume of Errs flow storage available in the reservoirs, adequately designed pressure zones, and the size of offsite transmission mains. The second factor involves the internal distribution. system within the neighborhood, including main sizes, adequate looping, and fire hydrant placement. It is the goal of Marana 1~'ater to develop adequately sized resexvoirs, properly designed pressure zones, and main sizing to provide adequate fire flow throughout the major water transmission mains u-ithui its water system. The required infrastructure for the interior subdivisions, including replacement mains, pavement replacement, looped systems, and new fire hydrants, may be developed and fuxanced through miscellaneous capital improvements, system upgrades, or local neighborhood imprcavement districts:. The existing ibiarana ~t~ater's procedures for plan review call for all subdivision and water extension plans to be reviewed and approved by the Northwest Fire District fire marshal. The fire marshal typically reviews fire hydrant locations, Stuc~~s'?ifii . ~~~~t~~fber~~l'~' ~ ~ "lit ~... ~ , ~ ,r ~, °~ 9 a .A~~;%) ~// CA~°r~~t 3: ~T~t ~rs~r~ . j~ ~° F;QLICiES Pa~e~-2 spacing, and fire-flo`v capacity requirements. The Fire marshal also reviews street layouts, adequate access for fire trucks, and turnaround capacities for the trucks. The design engineer of the water project is required to provide design calculations and iznp~ovement plans for the facilities needed to provide the required fire flow to the development. Marana dater also requires hydraulic modeling to be performed for the integration into the Marana V4`ater system. These plans are then reviewed and approved by Marana Water prior to construction. 'I"he design.. and development of this Master Plan include projecting fire-flaw requirements withal prescribed areas based on the land use zoning. These fire-flow projections are incorporated into each zone of the water system for infrastructure sizing and design. Fox the purpose of this Master Plan, the fire-flow requirement is generally assumed to be 2,000 gym for two-hour duration for a pressure zone. However, when the existing fire flow requirement in a particular zone has exceeded this assumption, the larger existing flow requirement is then applied. 3.3 ETC) C.. C.4!Ci`TY ®I,IY Reservoir. storage capacity is a critical element in th.e design and operation of water systems. Reservoir storage is used primarily to accommodate hourly fluctuations and demand, I'Z 7~ fluctuations, fire- flow requirements, and emergency reserve storage. Each of these requirements added together forms the required. storage capacity for each zone. Current AI?l{.(~ criteria typically require the minimum storage Capacity per zone to equal the average day demand of the peak month. .Under Certain .circumstances, in service areas with excess well capacities, the storage Capacity may be lowered. The advantages of having additional storage include operational flexibility, reduced cycling time fox production facilities, lower pressure fluctuations, greater relial~ilitS~, and reduction in well capacity requirements for larger reservoir stozage volumes. The disadvantages of a larger storage capacity requiremergt are the additional ~QSt and aesthetic impacts of larger reservoirs, additional land area required. for reservoir sites, and the increased potential to water stagnation in larger reservoirs. The selected storage capacity requirement for Marana Water is 1.5 tunes the ADI~ plus fire-flow requirements. This volume of water will provide for hourly system fluctuations, emergency storage and fire-flow reserves. This storage criterion is based on maintaining a well system capable of providing peak-day demand for the system with the largest well out of service. Ibiarana water recommends the storage reservoir be assumed at G€1 percent full when performing hydraulic modeling for fire-flow availability. It is the policy of Marana 1~%at~r to use gravity storage for each zone wherever possible. A gravity storage system provides a highly reliable water delivery system that operates with small pressure fluctuations and will also continue to operate during power outages using the rezr~aining water in the reservoir system. iX~laen it is not economically feasible to provide a zone's full storage Capacity ~~ia gravity storage, it is recommended at least 25 percent of the capacity be provided via gravity storage. The exceptions to these design criteria may be those isolated zones in the upper portions of the service area where reservoir locations are not available. ~YSTEiYi I~'EtSSLTR CR~EE.~ICY The design Criteria for Marana Water include zone boundaries located at approximate 2~0-foot elevation intervals. The zone boundaries of the Marana Water system are generally matched to the Tucson grater zone boundaries. For the purposes of this Master Plan, Marana ~Xlater will adopt the Tucson ~~~ater zone boundary delineations and high-water elevations far its pressure zones, with the exception of the ~XI+ Zone, and the Continental Reserve/Picture Rocks service area, where the existing pressure zone delineation. will be zzaintairied as is. tJ'sing these design criteria, typical static pressure fluctuations within the system will vary from approximately 40 psi at the top of the zone to 87 psi at the bottom caf the zone. The point of use pressures will vary- from static with. daily demand fluctuations and fire-flow conditions. It is the policy of Marana Water that its system be designed to muntain a residual... pressure of at least 2C} psi in all portions of the system under all conditions of flow, and a pressure of at least 35 psi durirxg PDI~. These pressures and zone boundary elevations are based an the finished floor elevations of the homes or the elevation of the highest floor of a multi-level building. In areas with steep terrain or where highly Study Session -September 14, 2010 -Page 44 of 68 <-"-~, Town of l~fa ~r.~ :;~G pat~bi ~~r y.-:.: ':~r part .,~~ ,. ,. ,. ,,, ,. ,. .. .. a i:K4F, .:%J ~. d` ~r.. 5f` t ~i ~` ~~~h: l°It~PT~FI 3. AT~12 SYS~°E(~l ~lwVl.nP E T +QLIC[ES Page 3-3 variable elevations occur, zone boundaries may be allowed to be spaced at larger intervals than 100- foot and the static water pressures may be allowed to approach 120 psi if needed for effective operation. In these cases, Marano Water requires appropriate pressure-reducing facilities be installed to protect its infrastructure and individual services, The IPC requires the water pressure within the individual property owner's plumbing below 80 psi. 1111 pressures above 80 psi within the water delivery system shall be reduced by individual PRV located on the provide. side of the building sen~tce, Pressure fluctuations in the water system are highly dependent on the design of a water system. Two methods are typically used for system design and control. The preferred method is a gravity storage system with the water surface of the reservoir set at the high water elevation o£ the system. This allows customers withir: the zone boundary to be served directly from the reservoir by gravity and the s~~stem pressure is thus regulated by the reservoir level. This method provides a highly reliable system with small pressure fluctuations The pressure fluctuations under static conditions may be as little as 5 psi. The system will also continue to operate during power outages using the remaining water in the reservoir system. The second method of system control is based on pressure. Under these .conditions, the operation of pumps is controlled by the pressure within the water system. Pumps turn on and off based on prescribed pressure ranges. This method of control will typically allow pressure ranges in the system to vary by as much as 20 psi throughout the day. In addition to greater pressure fluctuations, unless backup generators are provided, the water. service will be disrupted doting power outages. 'The above pressure fluctuations ate required to be incorporated into the design criteria for designing of the zone boundaries, booster stations, and reservoir systems. Marana G?t'ater currently utilizes both methods of control, with backup generat<~rs provided at many booster stations. connections and to provide a looped system for internal distribution. In addition, appropriate valuing at the recommended locations and intervals is required to isolate smaller sections of main during breakages and to reduce the number of residences out of service. ,~.6 ACI~tJP 4a~iVE T©E2 't~LIY Marana Water typically incorporates onsite backup generators at its large booster stations that provide pressure service to areas not connected to a gravity storage system. It is also the policy of Marana G'r'ater to make provisions for the connection to portable backup generators for those booster stations without onsite backup generators. l~farana Water currently has three onsite backup generators installed at the Marana Park boaster station {400 Kilowatts {K~}, San Lucas booster station {275 KW}, and the Continental Reserve booster station (~#(l0' K1X~. Marana G7r ~ater also has a 35 KW portable generator stored at the Marana Operations Center. 3.'7 t1I'lLc:~' Marana Water has a fully integrated supervisory control and data acquisition (SCADA} system. The system provides radio communication by Remote Terminal Units {BTUs} between all of the water facilities and a central control station at the water utility office via spread spectrum radio cotnrnunicatian technology. The telemetry system allows an operator to remotely monitor and control water system operations. In addition, the system offers the ability to detect and analyze overall. system trends over time. The telemetry-control system monitors water level elevations of reservoirs, water pressures, air levels, pump on/off conditions, and system failures. In the event of a failure, the It'TU automatically alerts water utility personnel of the failure, allowing operators to take corrective actions prior to the disruption of customer service. The SCADA system also provides site security monitoring features far early intnison detection. It is the policy of Marana Water to continuously maintain and upgrade its automated telemetry controls system. .S LUflPt:L3 A'tt. 'l'ST.ER2 I'QLTC"Y Marana Water requires looped water transmission and distribution mains for its water main grid' system and individual development whenever practical. Review criteria. include requiring developments to stub to property lines for future 3« A'd`R Qt7A.,i7'Y CO~d'TIttJI, 1?l?IlIC~' It is the policy of Marana 'lX~ater to provide for system disinfection via wellhead chlorination and maintain adequate residual cl~larine concentrations throughout the water system. G~'ellhead chlorination protects the water system from passive airborne and Study Session September 14 2010 -Page 45 of 68 " ~vio~n ' ~~ : F.'''~ ^ ~ 1't 'J~{~PAAEN°f ULICtES Pegs 3-4 bacteriological contamination. 'T'his policy will help prevent bacteriological contamination that may occur through aitbae contamination at reservoirs or within stagnant mains. In light to the GWR requirements, it is the policy of ;'~Iazana ~Y'ater to provide 4-lag virus treatment for new potable wells. This tS*pically means awell- resetvor-booster station system is required to provide adequate contact time for disinfection. 1=~or the purpose of 4-Tag treatment demonstratir~n, a chlorine residua! of 0.5 ppm prier to the first customer is recommended. 3.'~ 'lv'AE ANT) LTk' FACII...IY ~t[N1`IaNANC Pt~I.IC`Y It is the policy of Marano Water to develop and implement a preventi~Te, routine maintenance program to provide regularly scheduled maintenance on control valves, pumping units, motors, and other critical components of the water distribution system. Marano ~~;%ater strives to exercise valves, inspects reservoirs, hydropneumatic tanks and boosters and fire pumps on a regular basis. Marano ~'aret, it- is recommended that all appropriate Town departments be made aware of the future land requirements of the utility. This mechanism will alert 'T'own staff and the development community early in the planning process that water utility facilities are requited in a specified location. Through this. process, site acquisition, concept planning and layouts, and water facilities design can be planned along with the surrounding development. Land acquisition for water facilities should be included in planning review checklists and pre-application meetings for upcoming plan reviews. It is recommended that property dedications and acquisitions for potential water plant sites be made part of the rezoning and platting process for new developments. It is also essential for Marano dater to locate and acquire land for future well sites, boosters, reservoirs, treatment facilities, and existing facility expansions prior to facility design/development. This will allow the water utility. to secure property when available and help in informing surrounding landowners of tlae future uses. 3.10 LA1V3l AC:Ql1IIIQ I't)Lt~' 'T'he Marano Water Master Plan provides locations and sizes far future wells, reservoirs, booster stations, future treatment facilities, and major transmission mains far the 10-year planning horizon. This Master Plan also identifies the sizes and locations of major gravity storage facilities and transmission mains at bcaldaut. These facilities will be generally located on the water system maps. Many factors and constraints are required to determine the final location far each site. These factors include the proximity to existing water transmission mains, proximity to three-phase power, access to public streets, specific elevation requirements for gravity reservoirs, hydrageolagic requirements for well sites, noise and buffer requirements for booster stations and wells, aesthetic screening requirements for aboveground facilities, and the cost of acquiring the land andjor availability of other preferable sites. Experience has demonstrated that flee early ielenti~ication of land and right-of-~ra~r needs for future use can result in substantial acgwsition savings when compared to "urgent need" acquisitions. To mit,irr,i~e Land acquisition costs for 3.11 ~XISTINtG ~%~v'S'€'I; UPG t3~, P®I,I~`~ The Marano ~~?ater Master Plan evaluates the existing water system in terms of engineering design criteria, to guide the utility in determining required upgrades to existing water facilities. The system design criteria include demand calculations, peaking factors, water supply requirements, the number and capacity of required wells, reservoir storage requirements, booster station capacity requirements, emergency backup systems, distribution system sizing, and water system grid requirements. An evaluation of the existing. system was performed during the initial stages of the Master Plan planrvrg process. The Master Plan identifies azeas where the existing system does not meet the proposed standard of service as adopted by Marano Water. It specifies new facilities and/or facility upgrades to bring the existing system iota compliance with design criteria. These facilities iszchxde new wells, booster station upgrades, reservoir capacity additions, transmission main augmentations, and pipeline replacement. The projected cost estimates are provided for these facilities, as well as a priority schedule and timeline for the infrastructure development. It is anticipated that the cost of upgrading the existing system will / MF StttC~i?'~S'~i&f~~lsf87fit`3a~~~~~~'D'Yli(lz~°~'i~f"fi•~} ~It~:.:i:- ,°; P' `~~ ~~ :!v ~- LS~Cg t LPG s t C.. t't ~~~` &Y~ YG3..V R~IYAIY 1 4 i.7L441ICJ be financed by water utility rates. The system upgrades are limited to the existing water faciliries and the spine water distribution mains, and not include projects to capsize mains within individual developments. 3.2.2 Uva~~tsz~;r~ cr~n ~n R~DC°r Pc~icv The Marana hater Master Plan includes the locations of the major water facilities and major water distribution mains. The major water distribution mains are generally lacated within the rights-of--way of major streets within the Tow-n. The water mains are sized to deliver adequate flows to meet PDD plus fire floe, or PHD, whichever is greater. These water main sizes are generally larger than required. to serve a single development During the extension of water main facilities to serve a development, it is preferable to initially construct the ultimate size water main rather than building smaller mains and later constructing additional parallel mains for future developments. Phasing the development of distribution system, calling for parallel mains, is typically uneconomical and many times becomes impossible before the second phase can be constructed due to restrictions and availability of existing right-oE-way corridors. It is, therefore, the polity of b2arana ~~~ater to build the ultimate,water main facilities iivtially for water main extenSx4nS. The Town of l4larana Code has an existing oversizing refund policy whereby the initial development installs the ultimate-sized water main at their cost. The To~vtx will refund the oversizing cost of the water main by reimbursing the developer for the material cost difference between what was required to deliver water to the subject property and what was required to enhance the water system for future growth, in accordance with provisions identified in the water service agreement.. The oversized refunding credit policy will typically be used for water distribution and transmission mains only. 3,13 WATER SYT:~t V~;LE31'NIET I} '~`Ii~AC[NG f~1C,ICY Water system development procedures and system financing. are the most critical and important poltcies to be addressed during updating of the tX~ater lbiaster Plan. The water system development requiarements have been divided into two primary components- 1} the existing system upgrade requirements, and 2} water system improvements for growth and expansion. 3x.13.1 Existing System Upgrades The first category of water system. improvements defined by the Master Plan includes the specific facility requirements to bring the existing water system into- compliance with the adopted water system design criteria, policies, etc. These projects have been identified, and opinions of probable cost {present v~ilue) have been provided. The policy of Marana ti~'ater is to develop a schedule for implementation and construction of the upgrades. Improvements may require financing through long- term debt and payback through the water rates. Required facilities include upgrades to exsting storage and transmission mains. The regiTirc~d facilities are expected to have a useful life of 2Q years or greater, but will require high initial cash outflows in the early years. Since these Facilities primarily benefit the existing rate users, long-term debt may provide a mechanism for obtains€g the initial cash flow requirements and spreading the payments over a longer term. This method of financing more closely matches the facilities' useful life and pravides the ability to pay off the financing through water rates. 3:1.3.2 Water System Improvements for Growth and Expansion The second category of water system impro<cements includes water system expansion for system growth and water system service area expansion. The policy of Marana`ater is that future growth pay for itself. .All costs of the new facilities, which are required for new system development, will be paid for by the fixture developments. benefited. Twa methads may be used to allocate these costs to the development community. The ftrst will be through water system development fees. Water system development fees will be assessed to smaller developments, based upon meter sizes, water demand requirements, or alternative methods. The water system develapment fee wi}l include all costs associated with providing the faciliries for serving the new development.. These costs will include design and construction costs for the required reservoirs, booster stations, praduction wells, transmission mains, AtK~S, acirrxinistrative, financing, Study Session -September 14, 2010 -Page d7 of 68 „"~°` Tov~rs~ of f~~~<r . ~9 6 7,~~,t~ +. '~::~r 5u., . _ _. ~ :. ~RrzoK* and other casts associated with inflationary cost escalations. The second method of fair share cast allocation to the development communit~~ will be through development and water service agreements. Marano ~~/ater will individua.3ly evaluate the larger developments to determine the appropriate size, location, and phasing requirements for future development an an individual basis. ,~<k4 F'f2f3C°T I'FtT£}I'1°7A`i'IEDI~ I'(7LIY Project priorities should be established based on meeting system design requirements and providing the greatest return of system development fees. Priority and project approval guidelines are used in developing the Capital Improvement Plan {CIP) for growth-related projects. Project priorities are established based an the following requirements {listed in no specific order}: 1. Ability to provide required peak demand, pressure, fire flow, and system reliability for largest projected population growth or commercial area. 2. I'xistttg sGStem's ability to meet AZ~FQ and lt~arana ~>>atcr's requirements. 3. Greatest return of development fees to pay capital and financing costs. ~. Ability of project to improve service to other users in the system. 5. Ability of Marano 'Cuter to pay for projects with funds on hand. 6. AhilitY to construct transmission mains as a part of an existing roadway project at costs significantly lower than future construction .costs. The 1VSaster Plan projects should be integrated into major street and route roadway projects. 7. Ability of the project to enhance commercial growth within the'Town. .3e.Su PAY PiE L^Il V iIB./~1 R lr Vi'X 13 $L9.i14~4O SAND4It1~S ~'€) Marano ~~'ater has developed a set of construction standards relating to specific details of construction of elements of floe water system. These standards are required to be implemented on all construction projects. for Marano L~G'ater and exceed the ixiiiiitrium standards as required by ADEQ. Details are provided for a variety of constsuctic~n elements, including backflow prevention, air release valves, meter boxes, PRVs, and drainage structure crossings. The standards also include design and construction general notes. 3<l7 R€)Lr}t"f' ~:Ai2I3iv1:5 P[.,~fiN Marano Water has filed a Brought Preparedness Plan with ADWR in response to the potential impacts of a prolonged drought, if occurred, on its potable water supplies. The Drought Preparedness Plan defines four stages of drought responses from moderate to severe, which in turn determine the measures to be initiated to conserve the Marano ~Y~'ater's potable water supply. The £our stages of drought and associated measures are defined as below: Stage One {Moderate) is initiated when any two of the triggers are present. {i) Arizona Drought Monitor percent of precipitation for the water year is 70°l° to 90% of normal. {ii) Arizona Drought Monitor is D-2: severe drought. (iii) The annual decline o£ the overall groundwater level is between 2.[? feet to 2.4 feet. {iv) over 45 consecutive days of 10Q Fahrenheit degrees. In Stage One, Marano «%at~r will increase customer awareness about the drought and water resources through education. Additionally, the Town of Marano will work with Pima County to put in place ordinances that strengthen Southern Arizona's conservation ethic. Marano Dater will work with its neighboring water providers to look at cooperative efforts that include providing emergenry backup as well as jc3int conservation efforts. Most importantly, Marano T~iater will continue its overall water management efforts to use renewable water supplies. In effect, Marano ~'atez has already been doing all of Stage One measures for last few years. Stage T~vo {Abnormally Dry) is initiated when any two of the triggers are present. {i) Arizona Drought Monitor percent of precipitation for the water year is 50% to 70% of normal. {ii) Arizona Drought Monitor is D-3: extreme drought. {iii) The annual decline of the overall groundwater level is between 2.5 feet to 3.9 £eet. (iv) Over 60 consecutive days of 1©0 degrees. In Stage Two, Marano Water requests Stud'~~@S~idr~f-(~rttts?e''.~ft' (ffiQr~~~# ~ a~a.~,~, ~~.-,.~~~wc' (its t _.. ~~ _~_ ,~ ~~n _ °°' , hen ~; ~:- 3 r ~ u~ U L3RAf T .:~ - x 3A CHAPTER ATE YSTE Eli' ENT iE Page 3-7 customers to limit landscape irrigation to two days per week and only between 8:00 p.m. and 8:170 a.m., as well as avoiding other outdoor water uses such as hosing down walkways and washing vehicles tvthaut a bucket and hose with a positive cutoff nozzle. Hotels. and restaurants will be asked to initiate industry green. measures for conserving water, such as providing water only on request and washing sheets and towels only if requested. Under Stage Two, all of the measures of Stage One will also cantinas. Stage Three (Emergency} is initiated when any two of the triggers are present: {i} Arizona Drought 14fionitor percent of precipitation for the water year is 25©I4 to 50% of normal {ii} Arizona Draught Monitor is D-4: exceptional. (iii} The annual decline of the overall groundwater level is between 4.0 Feet to 4,9 feet. (iv} over 75 consecutive days of 100 Fahrenheit degrees. In Stage Three, IVlarana ~~~ater will not permit the use of potable water far construction including dust control; reclaimed water will need to be used instead. Marano ~Y'ater will consider instituting a drought surcharge to Tier 5 of its rate structure. Additional voluntary water reduction measures will be requested from customers including the limiting of landscape irrigation to one day per week and only between 8:Ot} p.m, and 8:00 a.m. In addition to avoiding outdoor water uses, customers will be asked not to empty or fill their pawls. The other measures of Stage ©ne and Stage Two will continue to be in place. Stage Four (Crisis) is initiated' when any two of the triggers are present: (i} tlrzona Draught 1bSanitar percent of precipitation for the water year is 2S4/o of normal, (ii} Arizona Draught 2~1'ontor is D-4: exceptional. (iiij The annual decluie of the overall groundwater level is 5.0 feet. or more. (ic} over 90 consecutive dagrs of 100 .Fahrenheit degrees. Under Stage l{our, Marina Water will begin the process set forth in <~rizona Revised Statues section 9-463.06 to consider adoptisig a moratorium an the issuance of permits and approvals fox new water-consutnixxg uses and activities. Marano Water will consider instituting a drought surcharge to Tier 3 and Tier 4 of the rats structure in addition to the one far Tier 5. I'+To potable water will be used for construction. Customers will be requested to limit landscape irrigation only to tress and shrubs one day per week and only between 8;00 p.m. and 8:00 arn. and no irrigation of turf or ground covers. Other previous measures will continue to be in plats. t w~~F Studx_Session - $epten7be~ 1d, ?010 Page 49 of 68 LC F: G? ~._~. qtr f , __ ~~ ~ _~3F .'~~'., ~_ ~"^_I i'~c°~~l t 5.1 General This chapter presents the analysis of future development potential, calculations for the future water system demands, and recommendations for future system infrastructure upgrades for the 5-year, 10-year, 20-year, and buildout planning horizons. The planning area for Marano Water at buildout is based on the Town of Marano limits: as indicated in the adopted 2047 Town of Marano General Plary excluding La Cllsa, areas to be seined by Red Rock, Tucson Water, and other water providers, and areas anticipated with low development potential. 'I-aR4_~ ~-1. Plan Topography for the planning area is provided by the Town of Marano Technology Services Department. Areas with existing land use were removed from the general plan database and the parcel database. The topography database was used to extend the pressure zone boundaries to the edges of the 2(110 planning area. The resulting pressure zone database was used to assign the land use projections to each water pressure zone. The future system demand projections are based on the land use provided in the 2007 Town of 1vlarana General Plan. Table 5=1: Planning C?ensi y Land Use Catego shows the planning density in EDt3s assumed for each land use category. Land U~ ~. ~° . Airport `;: -- _ __ 0.25 ~ _-- - -- __~.._ 1~E~~%~ ~ 0.25 m______ Eomcnescial ~ 4 ! --- 1 t)Ople 4 Industrial 4 li`3t)°lp E 4 Industrial 'Ltn~- I~:3, ns ~ .; _i ~ _~_ 0.4 1(?0°fa 0.4 Low Densi~ Residential ~.._.. 1.5 _ 100°la 1.5 lb4edium Der:~i=~ Aesidea~tial - 4 10t?°,'o ~ Park 0.2 ----- LOCI°lo 0.'' _ Rural I~~nsity Residential ~ 0.1 5f3°lo _~ Ct Ct5 .S~ecialPlanr~~v~:-~rea 4 1€)f3°f~ ~~ 4 Plan Commercial/Industri ~I 4 100°I"o 4 An ED1J represents either asingle-family residence ar some other water use that consumes the same amount of water as asingle-family residence. For example, as shown in Table 5.1, it is assumed that, on average, one acre of commercial land use will use the same amount of water as four single-family residences (or 4 EDP is}; I shows the areas in the 2007 General Plan associated with specific plans. Far each specific plan, the Town of Marano Planning Department has provided the area in acres for each Land use. For example, one specific plan might include a combination of High- and Medium-density- Iesidenti~~l and some Commercial land use. EDLI estitnates for the specific plan areas are based on the densities by land use category shown in Table 5.1 and on the assumption that buildout will be about 9(1-00 percent of the specific plan projections based an discussions with Tawn of Marano planning staff. Table 5.2: pecifi~ Plays Used in Flc€v~ Proj ions shows the EDLTs associated with each specific plan based on 4 EDTJs per acre of commercial and industrial land use. Tai, ~. Spellc ; ! ,. ~ Prnj~tians .~. Stud session;. ,~c~tembPr 14 2010 ~ e 50 pf 6~ ~"c .. - o~ ,... :~ ~1;~Ih ~ <r ~ > C~ys.,- 11 "`."aster P1art '-~:.~~ . >~t;i~~~A~" 4 ~ a iii:_ µ~ 1iTE UTIIFtE SYS~' ~ ~.'.rIS ._~ ~: ~z. Cascada ~ ~ , E _ 84 3,755 I?eanza :~ }6 0 30G Gladden Harms Il 2,211 ~ 214. _. 2.951 Las Pilas ~ _~ 350 S 37D Mandarins - 2,249 215 3,10`3 ~larana Gardens __ .a9 0 39 Marana tltai.c Street 0 28 _ ----- 112 - hiarana 5}~ect~*iznr _ ______ 0 16"' - 66$ Pima Farms 1,6Z'€ _ 30 1;741 Rancho~faxaraa East _ 50ti 78 -__-_ _ 818 Rancho A ar=nica Wiest j 2,299 _ 223 3,191 S aro ~ ~YhI4S p 2,250 1{.~ 2,29J Sanders C~zeave , 2,'?49 19 -~ ~ 325 Txngcrine Corurncrcc-Park -~-- 0 -- 112 448 The Shoes r1t Tangerine _~ 0 _._ 281 '1,124 The Villages Of "Fortolita 5,849 5p5 7,869 Uptown At I~Iarana 929 121 1,413 Grand Total ?4,51 + 2,1{18 32,949 ~,2 B[JII~ULJT SY~'~`~,13a3 i; '-'? The future water system an:l,,s is based on the ultimate projected number of EI7t3s in the Marana Water's planning area, which will be used for long- term planning and financial analysis. As growth occurs, the future water system will expand to serve currently as yet undeveloped areas within the planning area. The projected re~.i~t~ tidal units, e©mmercialjin~3ustrial acres, and the water demands by pxessure zones are presented in Table 5.3: ui(d~u Projectc~rt Summary. The watex demands were calculated using the same demand criteria. as for the e.Xisting system demands. ~'. uilo~~ ~r~j~~l€~r~ ~~ . k ~ ! ~, ~ a'a . , 5 :i: ,013 ~ _ - r , i 453 ~- ~ ~ k t ~; 5.,585 _ B 2,591 960 __. 0 9ti0 216 __ 4 ~~ __ 756 C 2,645 980 78 1,289 290 580 1,015 CR 4,556 1,657 34 1,$84 424 848 2,484 PR 637 23G 0 370 83 1 t~G _ 291 V 5,562 2,060 _ 7,065 16,385 3,68' "3?3 11,Q6U ~ W+ 83,724__ 31,OQ9 , 12,818 77,385 17,412 34,823 52,235 X1a 21,331 7,900 163 8,549 1,924 3,84; 5,771 X1 ,c,d 45,998 17,036 _ 9,437 ~ _ _ 44,681 ...10,(753 24,10G 30,<5~} Y1 13,053 4,834_ 900 8,29? v 1,8€ib 3,731 5,597 Y2 3,994 1,479 885 ...1,833 412 825 ..~ 1443 Y3 - 1,222 452 - --- -- i05 1,905 - 429 857 1,500 -- Z1 If>,477 3,880 3{? 3,998 9010 1,799 3,148 ZZ Tat~S 40 201,`'zj 1 15 ~ "4532 116 31 6S~ 61 - ~ 169 6~4 iA ~ 38161 27 r6 X22 ~ 48 116 093 ~~' Projected 23uildaut Demand Stud .Session,- Septei~i,4er,~1~, 2010 P~9@ 5t ~f ~~,- j_ 61 ~54A]~Y -~ t . ® y to t: (~A/ i /J C}'IPTER 5: TR YS AE.YSIS YEAR -5, -0, A~dU -20 SYS7`EM DEMANDS Growth patterns for the next 20 years were projected in order to plan for the implementation of infrastructure, In addition to buildout conditions, system demands within 5 years (2015}, 10 years {2020}, and 20 years {2030} were projected far plannrxg purposes. The growth patterns for the first 10 years {2015 and 2020) are based on the assumption that growth during ibis time wi11 occur in the specific plan areas and in the area surrounding the Manna Airport, and growth for the next 10 years {2030} will occur along the freeway in Pima County, at the Marano Airport, and along Tangerine Road east of I-10. The Town Page 5- 3 of Marana Planning Department provided estimates of the percentage of growth of each specific plan during four phases: existing, 5-year (2015}, 10-year (2020}, and beyond 2020. Table 5-4: Phasing of Specific Plan Develapment shows each specific plan and the percent of planned development estimated to occur in each phase. The period between 10- and 20-year was extrapolated from the 5- and 10- year growth data {about 2,Otlt> 1/DLs per year},. Growth of the area surrounding the airport was also divided by phase, with 25 EDTIs per year ar gxawth during the 5-year period and 130 EDI7s per yeas growth beyond the.initial 5-year period. 'I'he Marano Airport currently has approximately 50 EDC3s. Table 5~ ~. '~,~s;,,, E of Specific Plan Development (as Percent of Buildaut) ia~nos lie ~vaat:.na ~ -- 20 . r 50 ~ _>t3 Cascade i 2Q ~ ~~ Der~nza -- 15 -- - 55 30 Gladden Farms IL 2S i _ 60 15 Las Piles __ __ 5Q _ ~ 5(l ~fandarina ...... -- -- 10 - - 5~ 44 Manna Gardens - 100 -- Marana Main Street -- 20 50 30 Marano Spectrum 50 _ 50 ~ -- Puna Farms 9S 5 -- Rancho i4larana East - -- 20 - SQ Rancho Manna EY/est 15 1(} 54 25 __ Sa aro S _ _ 15 5t? _ _ 35 Sanders Grove - 10 70 _ 20 Tan Brine Commerce Park - _ 20 SQ _ 30 The Sho s .rS.t 7'an Brine -- -- 60 _ 40 The Villa es t~f Tortaiita -- -- 60 40 i_'~to~~~~ rlt Matacia ~ - 40 60 Table 5.5. 2015 Projected Demand Summary, Table 5-6.2020 Projected Demand Summary, and Table 5- 7: 2090 Project Demand Summa present the anticipated h'DUs, ADD, PDD, and FHD served by Marano Water far 5, 10, and 2£} years. Study Session =September 14 210 P3~e 52 of 6v z f.' Ci~ I ~'. .~ .'.... ~._; •.' p~!.' (i ~.~ ti.. :fie=i~ ',t ~~y ~. ~ ~~.._ ; CAPTOR 5: FARE YSTE A~YSIS ~~~,~,,~ ~~ :€' ~. r 9 ; - _.~ p {?. ..~_ ~ ~} {) - CR ? 1,861 _ 419 g37 1,466 PR ~ -- 233 -- 52 1t75 _ 183 V- ''~'" 16$ 33G 588 t~C~a- 4,3'39_ __. 1,116 2,232 3 3~-, ~s1a tiFi;? 119 297 52tJ X1b ~ ~S1c ~ X18 25> --- 161 58 323 117 - 565 204 ..... ~1d _ ; 420 45 189 ... 331 _ Y1 1,357 305 613 1,(}69 Y2 {? 0 _ 0 0 ~'3 i,?43 280 559 .. .. 979 Z1 - t 51 ___ 146 .... . . 293. 512 Z2 0 0 ,~ 0 0 'I'deal 2-0 13,143 2 9$7 15 Projected Detr~at~d _ _ ~ _-: 5 914 9,?42 _._. __ 4,770 t#FY T`ABI.F 5.6. ~n.~r ~ ~ F' . c.: ~ ~}eman i~_~1~ry ~ :. , EE i~ . . . .._ _._~_ .. _ ,F ..._ . t; .. ..._ ... I i ti ~.7.G _ t. i ... ' _~ ___ I3 ~ Q . _ ..._.._. d, ~ e.m.~_ _. C 2-} 1 .5 11 ~ 19 CR _. .1.861 419 83"~ 1,4b6 PR 2'13 52 ___ ...105 ~ ~~ 183 V 1 ~~5 _ 33G C~?2 1,176 ~~' ~ X1a 4 581 __ 2,043 .3,281 460 6,5(11 919 9,842 1,609 ~1b _ ~ _ 1,863 419_ v 8:>8 1,467 X1c u.1.~ 190 _ ~BEI Gr15 __ _ X1d -- z~ ~~~3 __ - -- 66t? l,iM~~ __. -- 2,s10 Y1 '' °39 ~ 61G 15L,3 ! 2,15; ~~ _.... f ° ~ 0 ~ t~ E _~ _ .._.__ '~'3 1,243 ?$0 55t) ~,''} 21 _._. _. 1,212 _ 273 _ , 545 1 ' 9S4 Z2 0 0 -____~ ~ ___ 0 Toea1 _ ~ J 1 140 ~` ~ ~ 14,~t1~_ ~ ... 21.OZt3 ........ 202Q I~Td~Pf Tt'. E~ I~C111811t~ _= ~ 1~~~~~ r~~ - ~pvrf9 p,. st~a~-~„~tt,i~. s~tRP~6t~~i1~J1Rt~~~c~, *.^'~~~~r P~~n - A , _~,~ _ „~7 9 a~a i~ti~~. ':~, r .:,. i .L ~ : SUTURE YTt18 1dAL.YSi~ Rage 5-5 :~ ~~ J13 - - 1 l ' ; ~~ j;j:} B 216 _ 49 ~ 97 17i) C 273. G1 122 213 CR 3,884 424 g48 1,454 PR 233 52 105 253 ~ - 2;773 _ G23 1,247 __ 2,152 W+ 23,243 5,D0 ._. 10,459 15,654 _ X1a 3,22! 72< ._.1452 2,541 X1b 3,814_ 858 1,716 3,003 X1c '' 8?2 -~ 646 1,292 2,262 Xid 5,416 1,219 2,437 3,656 Y1 3,765 _ 84 1,094 2,965 Y2 _ 4613 104 247 362 Y3 1,?12 385 770 1,348 21 _ 1,343 415 829 f,453 7_2 61 ._ 14 27 48 Total ~ _ 5,300 11,76$ 23535 J __ __ - 3~ 962..... 2030 Prc~iected Demand T$,9$1AFY 5.dr F[T"'URE S~'ST~;h1 SI~IIVG AN1} l~l~IviENT The water system design criteria that were established in Section 4.2, Existing System Design Criteria, are also used to develop the fuhire water system capacity requirer~ients for the Totun's watcti systems. Futute system reyuiretnents include well capacity, storage capacity, booster capacity, and transmission mains to serve buildout and phased system demands. 5.41 Source Capacity Potable water production capacity requirements are based on meeting PDD with the largest well out of service. A summary of the well capacity requirements for the 5-, 10-, 24-year and buildout projections ate presented in Table 5~8; Future Source Capacity uireents Summa The source capacity requirements in Table ~-8 include reserve well capacity. Based on historic consumption records for the region, the PDD is twice the ADl), The PIED for Marana ~Y~ater at buildout is approximately 76,322 gpm ~.1.~ ~ ~ ~ '~. The reserve well capacity is anticipated to be approximately 9,144 gpm at buildout {10,33(3 gpm from Tabte 5-8 less 1,234 gpm, Evhich is not needed when the pressure zones X1b and X1c are irxterconnectedj. Based on these projections, Marana ~Ylater will be required to maintain a production well caj}aeity of approximately 85,422 gpm at buildout. Study.Session - $eptembei 14 2p10 Page 54 of 68 ' `~~ `~ y111 ~o//~avn~y oI ~, ,~r~.~ .r; s~! _ _ :~: ~rtt l4Aaster Plan **~ Y"4 ! ,.: iF' ~ -~ GNAF~TEt't s ~"t.3~~ ~YSTE PIAI.YSI~ ~~~,~ ~_~ '~"~1tiF=^ ~3-lk ~'~~t~~ra Catrerrp!` _ - ~~ ^;st$t1tS ~LIt7'°°t't?~t is ! . !' T ~ ~ . _ ~, ~ k ~~~. ... ~~ ' „` ..... - .. ,. ...W .............. Y1 C 2,097 1,150 2,070 2,971 3,484*i 6,740*~ 4,643 21 Y1_ Xlb 2,285 1,230 1,553 2,068 2,946 X1 Xic 4,207 2,000 2,117 2,380 3,292 23,965.1 17,325 Xid 5$ 3,077`' XIa ~ - 1700. 4,418 10,501 .r.......~..`... W+ ~~-~- 3,524 13,612 40,370 36,550 Vl Vl -- 1,5(Hl 1,836 2,172 2,747 8,873 8,$73 Y2 Y2 Z2 -- 1,000 -- - 1,234 1,852 1,852 CR CR I'R 2,950 1,750 3,252 3,252. 3,473 3,622 672 Y3 Total 15,41? ' 111,330 15.244 23,343 33,865 55,422 74.005 ~~ Includes half of the I'DL3 for the Z1, rl, B, and C pressure zones as the source water in these pressure zones are assumed to supply by X1 and Yi Zone. Marano Water has existing potable well capacity of approximately 9.5,417 gpm. Assuming the existing wells in the Town anauitain the same production capacity, the additional source capacity required to serve buildout demands is projected to be 70,045 gpm. Approximately 47 new wells at 1,500 gpm each is required to meet its ultimate source capacity requirements assuming all source water is provided via wells. Marano V~iater currently owns 1,528 AFY CAP water rights. The projected buildout water demands for the Town are approximately 61,554 Al~'Y. `l"o achieve the goal of safe yield, an additional C~D,026 AFY of renewable water sources are required. Marano ~~atnr is working proactively to secure its renewable water sources, which includes control of the water reclaimed from sewage conveyed by Marano owned sewers. Marano titer intends to introduce CAP water as an alternative source of potable water to its. service areas. Two alternatives to serving CAP water to the Marano 1~ater potable system include recharge and reeovery wells and/or surface water treatment plant and blending with groundwater. 5.4.2 Storage Storage sizing requirements are based on meeting 150 percent of the ADI, plus fire flow. It is recommended that at least 25 percent of the required storage capacity be allocated as gravity storage that feeds the pressure zone by gravity, if it is not practical to place all as gravity storage. Fire- flow demands will either be served from the \t ~~ C# Studyf-~F~SSIol~,~ Seytei~Uier i4~201U ~~aJ~~55,,°f,~Y, lYt ~~S18w 1~1~t? 3 ,",,~ ~' ~~zo ~APTEF~ ~11"I ~YS'rE3 "ALY~IS reservoir that floats the zone ar frorn a reservoir that serves the zone indirectly through boosters or Ps. Fire flow u~as generally assumed to be 2,000 gpm far two hour duration for the pressure zones that. include zoned commercial and/or industrial use unless a larger fire flow requirement has already been established ~~iti~in the existing service areas. In addition, the existing fire flow requirements fox the CA (Continental Resen e~ and PR (Picture Rocks) as of 1,500 gpm and 700 gpm, respectively;.. for two hour duration were assumed as these areas are near buildout and no substantial growth is anticipated. The storage requirements per zone are presented in Table 5-9: Future Storage Gapaci Reguirernets tm~l . 'Ihe primary storage facilities far Marano Water are planned far the V, ~~+, X1, Y1, Z1, PR, CR, and Y3 service areas. At buildout, Marano dater requires. approximately 77 million gallons of additional'siorage distributed throughout the system to meet the storage criteria, all of which is requiere d to meet future demands as the existing system has an excess storage capacity of approximately 3.1 mullion.. gallons. Tattle 5.9, Future :>'~::~ c:.. r t, ~ - ~ ~en#s Sumrrtary w i1~:. i.. i~:: = s - ~ 3 - --- - .' ~ ..: CC .. ~.. ._ ~. ~ - --- I.,LLi-1 34,`1'`12 -- 2-F~:,318 i},31c~ _ rl R -- 240,000 0 0 104,976 466,435 2,311,207 C 5,832 _ 11,664 131,706 626,454 Z1 Zl 1,100,000 240,000 316,192 588,838 895,504 1,943,028 1,083,028 Yl Y] 185,000 240,t~~}0 ~ 659,502 1,331,154 1,829,790 4,029,912 4,084,912 Xlb 1,940 0110 240,(300 348,705 905,175 1,853,361 X1 ~ X1c 525,OCd} 330,©00 ... 125,874 ____._. 410,184 1,395,192 21,?14,745 19,569,745 Xld 10,00(1 240,000 204,120 ~ ..1,425,43$ 2,632,176 ~'+ X1a 240,00(1 320,?LO 992,898 1,568,322 4,154,814 W+ 2,0 i 5,000 300,Ofl~J 2,410,074 7,086,366 11,296,098 37,609,110 39,988,924 Er ~~ 240,OQ0 363,042 725,598 '1,346,106 1,963,095 8,203,045 Y2 Z2 240,OOQ) (} 0 29,646 29,646 Y2 240,000 0 0 223,560 $90 838 1,260,484 CR CR 1,000,000 180,000 904,446 904,446 915,624 915,624 95,624............ PR PR 100,0(!0 84,000 113,238 1.13,23$ 113,238 1?9,809 163,809 Y3 Y3 1,000,000 300,000 ~ 604,098 604,098 832,032 925,830 225,830 - Total 7,935,040 - b,387,547 15,134,089 25,417,849 82,427,658 76,886,658 * Includes fire flow requisecnent. 5.4.3 Booster Stations Boaster station sizing is based on providing 1'DI~ plus fire flow or PHD, whichever is larger, for the pressure zone without gravity storage. When gravity storage is provided for a pressure zone, the booster station requirement is to provide PDI~ for the zone and all that need water from the zone.. Ta @ 5-1(1: Future poster Station CapaiEy Requirements Summary provides the anticipated boaster station capacities for the 5-year, 1Q-year, 20-year and btildout planning horizons. if the floating reservoir storage required to provide fire flow has not been built, the boaster station may require additional capacity to provide tlxe interim fire-flo-tiv requirements. Stud~o~g i~> - ~~e , ~~,5'i ' t-'~l~a b/~ 9, ~ (~' ~ v' i'~Y~,~$~~ :.~r i -, hyA CHAPTER : FUTURE YI ~.SIS Page 5- s ~'~le 5-1fh ~tttr~ +~~ter Stei~~ C~~~ity ~a~€~e: ~~.~t~ :i~~ ~ .ay'~ f: ,.. - _ , --~ ~ ~ - , ~~K~ ~ ~. +t ~. ,. _ _ ~~ .~ ; ~„ ' ~ ' 1,000 14 ib 340 c,'+12 _ -_i,4i2 ~ ~i I 2,000....... 0 0 2,z5s 2,722 ... z,~22 C 2,000 _2,005 _. 2,011 2,122 2,580 . 2,580 CR 3,40d 1,50{} _ _ 3,002...... 3,002..... 2,838 2,943 (57)`z PR 1,004 74t~ 8d5 805_..._.. 805 8fb (134)` ~' 2,d4d 2,336 2,672_....... .........3,247.......... ~ ,,..~ ~ 373 Ll'%+ t~,'720 , 2,500 4,921 12,342 17,517 34,823 28,103 X1a 1,300 2,000 2,297. _ 2,919 _......3,452 5,847 4,547 ~1b 6,180 2,500 2,823. 3,338 S,21G X1 c 4,900 2,750 2,867 3,130......... .........4,442 21,9G5 i0,7G5 11c1 120 2,000 2,189 3,320 5,477 Y'1 2,100 2,000 2,920 3,821 4,334 5,594 . 3,490 Y2 2,000 __ 0 0 2,234 ... . 2,852 2,852 Y3 3,100 2,500 3,059 3,059 3,270 ...3,357 257 Z1 2,085 2,000 2,309 2,588 3,279 3,'717 ~ 1,G32 Z2 : 2,000 0 0 2,027 2,027 2,027 Total 30,505... - 31,545 43,045 60,9G0 98,075 b7,570 `i "i'he 5-, 1U-, 24-pear booster capacities are based on providing PI3D plus fire flow or t'~h, whichever is greater, The booster capacity at buildaut is based on PD17 plus fixe flow or PFID, whichever is greater when na gravity storage is provided. With gravity storage, the booster capacity is based on .providing PDI3, Gravity storage is assumed to be provided far the F, ~%+, Xl, Yi, Z1, and A tones, ~ Indicate; excess booster capacity of the zone. 5.4.4 Gravity Storage Transmission System A number of new transmission mains are required to transport the gravity storage water throughout the distribution networks. Taie 5.11: Transmission Litre Extension Summary presents the transmission line extetason projects, lengths, and purposes of the extensions. These transmission mains are typically fiinded by Marano Water and the cost will be recuperated through gravity storage and renewable water resources fees and infrastructure impact fees. Construction and upgrades of ...internal distribution systems and main extensions for developments and growtlx are typically the responsibility of the developers,.. therefore are not included in this Master Plan. Study ~ss~~n, `4~,~?~111t~Fi 1.4, 2Q,~0 ",~afl~,5'~{~~~ ivi-~~tG~ !'i:-~,. »t sA3 ~A• _"'."' ~ ~,,; ~4 ii F~A~TI~ft : FUTILE YSTE $~~'~,l ISIS ~'~.. - ~: ~ ~. Transmission Line Extenic ~. ; 3 ~ - $; ,, .,~F '. f.?s. ~'~~ V'Gone .'~=inch GYav-i iYi.aui from V Gone Reservoir lU,6Ut~ 1'o rovide avy stora e to the ~r' Guns W-~ Zone Maxana Road 16-inch Main fox Santa Cruz 0 To provide water to the system on both River Crossin 3 00 sir3es of the Santa Cruz Itivez W+ Zone Sanders Road 24-inch Main from Airport to I- ' ' 10 25,400 I o provide gravity storage to the W+ Zone W+ Zone 48-inch l~iain from Tortalita Mountain W+ Zone Resexv oir 11,000 To provide gravity storage to the W+ Zone W+ Zane 36-inch 1~4aisi Connecting Sanders Road 24-inch & "Toxtol€ta Iviountain 48-inch (includes Raitroad(I-10 3,640 To provide gravity storage to the W+ Zone cxossin~ V;t+ Zone 24-inch Main to the north of Tillage of Tortolita (includes Railroadll-10 crassin } 30,000 To provide gravity storage to the W+ Zone X-Zone Sandario Road 24-inch Main from Saxith X-Zane Reservoir 10,300 To provide gravity storage to the X Zone X Zone 36-inch 1Vain from the Tangerine Raad X-Zone " ' Reservoir ----__- y 600 I o pro~7de gravit- storage to the X Zone X Zane Tangerine Road 24-inch from the 36-inch Main includes I-10, C~1P, Railroad ctoss~ 4~~0 To provide grac~ity storage to the X Zone X Zone 24-inch South of Tangerine Road, includes I-10 cro,sini, at ~~ra Talley Road ~ 12,000 To provide gta~~ty storage to the X Zane 7-7_one Camino.I7e Mariana 16-uich i4fain 7,100 To ravide~ravity storage to the Zl Zone Hartcuan Vistas to Cortaro~Ushrin PRA' and 8-v~ch 1blain 1,?50 To xovide redcn~daat c-apacin- to Y1 Zone Y-Zone 16-inch 14iain From Cartaro Farms Raad to Linda Vista Blvd 15,500 To provide gravity storage to the Y1 Zone Y-Zone Tvnn Peaks 24-inch Main 4,000 "1'o pxocicie gravity storage to the Y1 Zone west of T-10 Y Zane Linda Vista Blvd Parallel 12-inch ~Sain to Hartman ~ristas Reservoir 7 200 ' To provide gravity storage to the Y1 Zone A Zone 16-mch C;ra~~t4 Main 4,300 To pro~,~ide F;xaviCy storage to Al Zone ~~~~~~ Stud~,S~sSitu~: 1e~3~be9.20;1Q*~~ 5~q~ 5£,-,Xti Itdr~st8r fan ~ %~ > ...s , ~~i .5 Pflk'C'' ' ` ` F`ACIL'1`IES - F"1'12E YST1t;tVl I~l"LtFI ?:t`:``S The facilities proposed to meet the buildout system requirements are shown on :~,~ ~~:, s€. r_~lvbits 5-2 and 5-3 have been removed for se~:urity purposes under the Public Health Securer and I3ioterrorism Preparedness Response Act." The locations/routings of the proposed infrastructure improvements on these figures are conceptual. The actual locations of these itxfrastructures will need to be evaluated and detexnairted as the involved CIP projects evolve. Table 5.12. 1~=Year Cap!#a! lrtavemen# Prajec#s presents the proposed 1~-year capita! improvements projects related to future ~,rowth far Marina ~:'.~c~*. These requirements are based on the assumeiron that the infrastructure improvements proposed to meet existing system requirements, as Listed in Chapter 4, have beetr constructed. T ~- c •i ~ arl era ~ t_'t~I 1=.~r3r{~ir~rr~s~p :'irs New «Ts1- Zone North Srr,~~ers ~~'arcr Plant ~~:'cll New ~~'+ Zone $amett ~~'ell & Pipeli€xe to'_4Tazana Pack Reservoir Re-equip the existing Y 'Lone Twin Leaks Well view Y Zone Twin PeaksWell lRe-dx€Il ~qc Egoi Equip Cortaro-C7shrin f~'-Zane'; ~~.%ell C14ffT? ~~;'etl Przrchas~, New 1.0 MG Wf Zone North Sanders Water Planr hozbay Rcseivolc ~Tew 1.0 MG W~- Zone rlirp:~r~ Elevated ; •~c>ating 4eervoir New 1.0 MG W~ Zone Marina Park Foray Reservoir New 1.0 MG X Zone Tang~:rine Raad hle~atinQ Reservoir New 1.01~IG Z Zane Camino De Mariana Plaiting Reservoir New 0.25 MG Y Zone Pioneer Well Faxhav Reservoir New 0.25 ?l~G S' Zone Cartaro-Oshtiix r ~~ ri ~.ir Re,e r', < eic New 3,000r..~~~ , C1' ~ Zone North Sanders lkiater 1'iant Booster Station New 2,OOi~ ; ~, € C~.'-t- 'Lane ~li~ mart Boaster Station -_ New 2,000 gpm Tangerine Raad W + to X Zone $ooster Station New 2,000 gpm X-Zone Booster Station at Itir~ort SE We[1 Site Islew 2,000 gpm Pioneer Well Site Booster Station 1`New 2,000 gpm Y-7.one Coxtara.-C~shr^ Booster Station Upgrade 800 gpm Continental Rcsen-r to Picture Rocks Baoster Station to 1500 ern ~".•€i Mzta ~ ~4t~ W+ .:out Sanders 1%uad~~i-inch 1llain f1-om <lins~xr t,; ; 1,, X Zon:: Tan~;:u~e Road 24-inch Main Crossing I-1Q, Cr1P, and Railroad X Zone 36-inch Main from Tangerine Raad X Zone Reservoir X Zone Tangerine Raad 24-inch Main fsam 36-inch i4xain to I-tO Z Zone Camino De 14fanana t6-inch lblain Hartman ~ristas to CortazofQshrin PRti and 8-inch Main Y Zone 16-inch Main From Cortaro Farms Road to Linda YSta Blvd Y Zone Twin Peaks Road 24-inch i~2aui Picture Rocks 2358- Zone 5-incl; i~1:3in from Wade/Ina Road to the Springs Resercr~ir ;~~,~~ Stu pt~~ut~e~: t~-d, _ {~ i 0 , gage 59 of 6t3 t'~rt Master Ptah 813112Q1fl~ttr°i ~ ~_ ~ auah,y,~ ~/ ~~„<,, ~ „ya_ ~- i i Tab(e 5-~3: Bu[Idnut Cap°stl fmpr~veertt PraJects presents the capital improvement projects for Marana mater at buildout, assuming the 10 year capital improvement projects have been completed and in operation. ;. ,... -~-t r.~ v: 1.=~ :~ ~~ls ',c~. ~ i 'r, a '~t`cll nc~ ~ ,r~u ~..;~ ~„~~ _ .. ' ' _ ~9 Ivli.s F'orbay Storage in V, '~ r-, .k, Y i, and Y2 2.0 MG V Zone Elevated Reservoirs 8.5141G W+ Zone Tottolita Mountain Reservoir G.5 MG X Zone Tangerine Road Reservoir 2.01bfG X Zone South Floating Reservoir 1.0 MG ZI Zone Camino De Mariana Reservoir 3.0 MG:~ Zone'Tar~~~ r,ne Road ~l~a ,~, ~,_,~ Reservoir 17 new 3,t)t)~} ~p„i ]x,~,.~er stations in V, SG+. ~, and ~'2 ' New 2,~10Cf ~.pni X to Y1 Zone Iriline Boostez Station New 2,OQ0 76ptn I'`1 Zone Booster Station at Tar,~;ezin~ Road X Zone Reservorr New 2,000 stn Z1 Zone Rooster Station at Tangerine Road X Zone Resen;oir New 2,OC~0 hprn Z1 to 1~1 _Zone Inline Boaster Station Newt„500 gpm BI Zone Booster Station at Camino De Mariana Z Zone Reservoir New 1,500 gpm B to C Zone lnline Booster Station New 1,500 l;pm B Zone Boostez Station at Ta, ~ erirre Road A' Zone Reservoir Ne_w 1,500 ~;pm C Zone Booster Station. at "1"ang zinc Road .-~ Zone Reservair New 2,100 is pm Y1 to Z3 ~e ~r;e Inline Booster Station Netiv2,100: Y2t~7_'~m :nlrn~li~rrrt~r`tu:un V Gully ''-1 :~ :~ : ~> ca `,, a~;i i3am V Zone Reservoir: _~._ , R'=h Zone Marana Road 1 ~ ,-:rich Main for Santa Cruz P, im~e Crc~sing ~+ Zone 48-inch Main from ~V~ Zone 1'octoliia Iviountain Reservorx Zone 36-inch iVlain fiortolita Mountain 48-inch Main to I' 10/Itaalroad CrE~~sin~s - ___ -- ~(t+ Zone 24-inch lfain -North Route of Village of Tortolita X Zone Sandario Road 24-inch Main from South X-Zane Reservoir X Zone 24-inch Main South of Tanverine Road 36-inch_ Main - " - --_ Y Zone Parallel 12-inch Main along Lindy i~ista Flvd to I~artrnan Vistas Reservorr 1~ Zone 1G-inch Gravity: iVfain from Tangerine Road ,~ Zone Reservoir w^+ o ~_ .. Stud~r~ess~om~ Septs{hbe~~~ti2,Q~'~Q.~.i'ac~60nf6£. .. ~ :r, .,.. ,-_ ,~ - - ~.,_ , a -0~.: ~~: ~irii+^ ~, , n. ~A ~N ~~ _~ a~ ~~ ~' ' Qn i ~~ N N S I ~ in ~ ~ G ?J ~' p ~_ _ ~~ ~ r.,..,...:-.~.. ... ~.. cn V _. O .~_~ ~ (!~ r I ~ ~' } d ~ ~\ o r?~..~-,.~-,~..-,.~~...r-r-.f ~ ~ I~ I ~I ~ ~ ~ ~ : ,1 M ~, ~ S ,; z -~ z D r s t ~ ~~ / ~ D / / ' ~~' ~ I % ~ ~ '' ~ ' /~, + ~ 1 - z ~ II j Y S Z f ~'} E =r.s ku U~ I, . zz z _ e % ..r`i>9 X <; U D L ~ rt ~ ~ ~' O ~ ~ f ~~/ X ~ ~ ~ K i Z f _. -t ~~~ + ~{ '. ~ 'n L7 ' ~. = ' - '. --i ~J ,... ~ ~„ ~~ :.». ice.;..: ~ ..zr,.vt~// - -Q.___......-- -..... ? _ ~ ~ L7 V~ ~ ~ L r'# ~~ f~~ 2 < l~ ~1 ~ m = ~ a *~ _ i~ ~ ~ ~~ ~~ ~- ~ C ~~ C \ ~ ~-~ ~ ~ i' t. D Y' ~ r t ~ ~ ~ O ~ ~ ~ tiF~ ~ C~ ~ ~ .y ~ 2 to ~ ~ v r f- r ~- R1 ~ .~ , , ~ ~ ~ ~ ~I `~ O 1 D -n ~ z t ,,±., yC Z ~, , _ ~ ~ \ D ~ S ~ ~ ~ ~ ~ --{ \ ~ / ~ ~ 1 ~~ C7 ~ ~ ~~~ fCT ~ to ~ sc Hies ~ ~,e- ~ i ?~ o ~ ~ ~- ,,; h ~ f ~ ,n ~» ,.~~, r rn D Zl f'~ ti ~ n -- ~- ~ , .-, w ~ m S f ~.. i.,. j -I 2 ~'r € Z ,r' -< ~~ ~ O _ ~ ~ + J r ~.: ~'^ ~ z f m ~~ _~ _- .~ ~z z L~ v~ ~ ~; ~ <r~ m ,'~ z ~' `~ ~ ``' ~ ~ ~ F ~>> i ~~F -s~~ G '~ U) / --I Q fl y '''~ rn r. Cn rn D co m ~ ~„ ~ ~, ~ ~ <. ~ ~ ~. n ~~ _ ~~~ti F I a -~-, ~} F t . ~: ,.~ ~ '~ 0 7 _ ~ ~ .~ ..',~ ~ ,- _ z _ ~ ,_~,,n~xo~ y ~ U' r, ~ ~ ~~ ¢~ h, ~ ' k fw. 1 r a O m o .~ ..~ ^~M4 . ~; .. - x = ~ ~- ~~l ~, ~_ _? V m n a C ~3 ~~ a ~A ~ 111 ~ ~ ~, ~ ~ ~ ~ z m a ~ a a. o. ~ a Ci o D ~ "~ rn o ~ ~ ~ 3 -, ~ ~ ~ 0~ 'c ~ n, ~ to x ~ ~' ~ ~. ~ a. ~ ~ '0 N ... ° ~ ~ ~ ~ ~ ~ ~ ~ a ~ ~ ~ ~ a~ ~ ~ ~ `° v ~ o ~ ~ ~ ~ .~~ ~ ~ ~~:. ~ ~ . ~. ~ ~ ill .7 ~ m `G v tp N ,C ~7 f O ~ ~. N +~ q ~ m ~ ~ ,~ ?~ Q '~ ~ ~ : ~ ; ~ ~, a ~ c r ~ ~ C ~ ~. m ~ v , _o ~ ~ ~ h ~ ~ ~ ~ ~ ~ ~ ~, _ si rt ~ ~~ ~ m m ,~ ~ -Q ~ ~;; f ~ ~' ni ~ ' ~~ v' ~. 4J Syj ~ ~ v ~ m CD -~ ~ ~ N D m ~ ¢~ ~ ~ ~ sa su ~ IV O o ~ o ^,f a m This chapter presents the cost estimates .for the infrastructure improvements recommended in both Chapter 4 (bases on existing system requirements) and Chapter 5 {based on future system requirements) for Marano Water. The 10-year and buildout CII', as well as associated cast projections are provided in Tate 6•~. Parana hater is-Year (2l2ll) Capita( irrtpro~eent Pr~j~~E~ and Tablo fi-2: ra~rta after ui(dout Capita[ i~apr~~~~t-~~~~ Projects following the text of this Chapter. The following sections present file assumptions made in projecting the infrastructure costs. the installation of transmission mains required for distributing gravity storage u-ithin the buildaut CIP. Based on recent bids of similar projects for Marano Water and standard assumption of soil conditions, the following costs were used as baseline numbers for water main installation cost estimates: $150 per lineal feet (lf) of 8-inch water main from Wade Road/Ira Road to the Springs ~'~°ater Plant site, and from Hartman Vistas service area to CartatojC-shrin service area along Hartman Lane. 6.1 CC77` PRCt.II.+`C"I'[C?N A.SSUMPTIC3IYS ANA eITt?~3.IA Cost pxojectior~s for constriction of the proposed water infrastructure are provided as a basis for financial planning for Marano ~yrater. The cost estimates are based on construction of the projects at present day prices. Appropriate inflation factors should be added when using these estimates fox CIP budgeting and financial planning. (Jeer the past several pears, Marano Water has bid several reservoir, booster station, well, and transmission main projects. The bid schedules from those projects were used as a basis for determining the costs of the proposed water infrastructure. Actual costs may vary depending on extreme site conditions, site acquisition, soil conditions, security measures, and replacement and/or disposal costs fax existing facilities 6.i.1 Pipeline Replacement Projections in the Master Plan indicate that same existing 4, 6-, and $-inch. water mains within the Marano Water's old service areas will need to be replaced as Marano VG!ater has determined the existing mains are undersized and have exceeded their useful service life. Per Marano Water, the estimated main replacement cost within the next ZO years will be approximately $5 ioillian. This cost assumption includes valves, fittings, fire hydrants, appurtenances and minor pavement replacement required for the installation of the proposed water mains. The cast assumption does not include easement acquisition. 6.1.2 Installation of Water Mains $160 per if of 12-inch. water main parallel to the existing 12-inch main at Linda Vista Blvd $170 per if of 16-inch water main throughout lbfarana 4~G'ater's service area $200 per if of 24inch water main throughout Marano ~~v`ater's service area $250 per if of 36-inch tvatex main throughout Marano Water's service area $300 per if of 48-inch water main throughout Marano ~'~'ater's service area The above cost assumption includes .valves, fittings, fire hydrants, and appurtenances required for the installation of the proposed water mains. Depending on the specific site conditions such as the number of wash crossings, and pavement replacement, the cost estimate assumptions may vary. 6.1.3 Installation of Welded Steel Reservoirs Projections of the storage requirements indicate 77 million gallons of storage, in addition to its existing storage capacity,... will be required for Marano ~'1'ater at buildout. The two mast commonly used types of storage facilities. are welded steel reservoirs and below ground concrete reservoirs. Welded steel reservoirs are generally less expensive to install than concrete reservoirs. A welded steel storage reservoir is typically no larger than one million gallons in size. Based on recent bids for Marano ~~'ater and standard assumption of soil conditions, the following casts were used for welded steel reservoirs: X300,000 to $350,000 for a 2~Q,t?i30 gallon reservoir depending on specific site. conditions. ~~00,000 for a one million gallon reservoir. 'T'his Master Plan projects both the need for new water main installations within the 10-year CIP and, stuayae~~c}r~.~ ~t?~v?nt?~r=l4~aP..?~~+'~d~~ :~~ .. ~~ _ x`~r.?~ ~~ I:. ,iP HAPTER ' €~i;~~~~t~~ ~ itC-JEC'FI€3t~ The above cost assumption includes the steel reservoir, required site work, site piping, telemetry, site .grading, block walls, and landscaping. This cast does not include site acquisition. 5.1.4 Installation of Buried Concrete Reservoirs As the size of reservoirs increases, the aesthetic impacts of larger aboveground reservoirs increase. In high-profile areas, it becomes difficult to install aboveground steel reservoirs. Ta address public concerns, mast municipal water providers have specified buried, concrete reservoirs wherever passible to mn;mi7e the aesthetic impacts to the neighbors. The site acquisition and construction casts increase for the installation of buried, concrete hopper-bottom reservoirs. Out of the 7? million gallons of storage proposed, it is estimated that 15 million gallons (W~- Zane lbrtolit~: and X Zane Tangerine Road reservoirs} will be stared in buried concrete reservoirs with steel roof structures. A cost of $1.50 per gallon of storage is estimated for buried concrete reservoirs proposed in the Master Plan. This cost assurxiptian includes the concrete reservoir, steel roof structure, excavation, site work, site piping, telei~.lerxa, and black walls. This cost does not include site acquisition. 5'.1.5 Installation of Elevated Reservoirs Two elevated storage reservoirs (the 1.0 million gallon 13G~+ done Airport Reservoir and 2.0 million. gallon V Zone resen-aixs) are recommended in this Master Plan. A cost of $2.O per gallon of storage is estimated for the elevated storage reservoirs. This cast assumption includes the reservoir, steel roof stn~cture, riser column, site wank, site. piping, and telemetry. This cost does not include site acquisition. 6.1.6 Well Installations It is projected that approximately 47 new wells at 1,500 gpm each will be required to meet the supply demands of Marano Water at biiildout. Based on recent bids for Marano ~~Uater and applying standard assumptions for dxillu~g zig requirements for access, a cost of $800,000 was assumed to drill and equip a new well. This cost includes standard drilling operations, well casing, sanitary seal, well column tube and shaft, and pump motor bowl assembly, assuming the wells are to be drilled using the reverse circulation air rotary drilling rig. steel ~ ~f ~~~~- ~ ~r~~ ~. rs.~ ~ `~~ ,.~.., 8139I201t? 17RA1=T It is assumed mat two wells would typically pump to a water plant storage facility, with one well at the plant site and the second well approximately 1,000 feet apart. Assuming a 12-inch dedicated water line is used to collect the well water to the reservoir, an additional $200,000 is required for the offsite well construction. l~or the purpose of cost estimates in this Master Plan, the calculation was simplified by increasing the cost to $90t~,000 for drilling and equipping each new well. 5.L? Boaster Stations In addition to the existing booster capacities of Marano ~'~'ater, this Master Plan projects twenty {20 new} 3,Cit)() gpm booster stations, eleven {11 new} 1,500 to ?,000 gpm booster stations, and four {4} 1,500 to 2,000 gpm in-line new booster stations at buildaut. Based on recent bids and standard assumption of soil conditions,. of the cost estimates range from $400,€!00 to $900,000 each new booster station, depending on the size and location of the facility. 6.1.$ Interstate 10, Railroad, and CAI'` Crossings This Master Plan projects several water line crossings over Interstate 10„ Union Pacific Railroad (UPRR}, and CAP canal.. The installation of these crossings is assumed to be by "jack and bore". The cost estimates for those crossings range from $1 million to $1.5 million depending an the size and location of the water lines. This cast assumption does not include site or easement acquisition. 5.1.9 Engineering and Contingencies Due to the planning nature of the locations of the facilities proposed in this Master Plan, contngeuces are added to reflect unforeseen conditions that may affect the individual projects. tTnfareseen conditions can range from eiairixonmental issues that map need to be addressed in individual projects, to easements that may need to be acquired for pipeline construction. This.. cast component also includes engineering fees, pernuts, inspection, and project management. The cost assumptions provided above include 20 percent engineering and contingencies. fi.2 1Q-X (2U2D) CAPITAL IMPOVEI;`I" ~x wt. t M' ~ } ~NAP'TER F€t~STRUT`l.~~ ~~~~~' ~~ftf3JEGTIC)A! ~„F~ ~ ; F ,~ Table 6-'I lists the 10-year (202(}) CII' for Iviarana Water. The cost estimates for these projects, based on the present day price is approximately $33.5 million, out of which, $7 million is allocated to the upgrades required to bring tl~e existing system up to current standards, and X26.5 million is allocated to growth related system upgrades. 6. 13u~c~~-r~uT tC:A~iTn,i.. ItPRO`YEPVt'1' PL~~~ Ct3ST ~'Jt:'1`ION Table 8-2 lists the buildout capital improvement plan for Marana'~Jater, assuming all the 10-year CIp have been completed. 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P- '* ~ tt ry .{ n 'I' ,,~ C o ~ ~' ~. o y H N ~' ~t l`~ •' i? t~V S Q Q .' ~ ~ , ~ N ; ro n ~ W i w - r; ,1 . r p~ p h ~' ~ /~ t ~ c o ~ o H ~ r H r3 +~ ro n r L~ ~ C O u' ~ ro ~ N s~ N ` ^n O O ~' G. ~ W •! ~ ~ N ~ c k r ~. ~, ~ ^., ~ N z n -. ,'?Av 333.. .. n n ~-. -: ~' r`~ a r d O ~_ W ~ y N *~ M~M l~~ yd L+J --- t : °„ 7.1 l~~ '7'Rt?i71UC7'IC} T`he implementation portion of this document provides a roadmap for Marano Water to facilitate the recommended improvements. A set of baseline evaluations for source, storage, and boaster station capacity have been established for use by Marano Water in performing annual evaluations for infrastructure requirements, capital improvements, and required upgrades For both the existing and future system. These infrastructure and cost data. will allow Marano Water. to continually evaluate the capital components associated with the capacity and operational upgrades of the potable water system. These criteria may then be used to establish. and continually evaluate the connection fees tvithuz the defined service areas of Marano Water. The criteria may also be used to define capital components fox the existing rate payers for infrastructure upgrades required for the existing system to meet its established standard for service. Water. Master Plan updates are recommended to be annually completed as part of the Marano CtL'ater annual report. CAC°I"r~L It~iPEt®~TEtYIN IFL~M~ N°i`ATIt)N The 1Q-year (Zt}ZO) and buildout CIP, as shown in Taffies 6-'I and $-, identifies the critical capital improvement projects for Marano ~~'ater and provides associated cost estimates at the present day's price. The CIP are made based on growth assumptions as of today°s conditions. It is important to evaluate growth potential and annual growth so that infrastructure projections can be modified periodically. These projections will dictate the funding requirements and tuning associated with each capital itngtovement. Project timing and land acquisition has been the critical path of the majority of Marano Water's capital improvements. construction phases of the project, and budgets these phases of implementation accordingly. fihis extended timeline allows Marano `~k-'ater to effectively manage its C1P while meeting or exceeding the regulatory standards for the development of required infrastructure. 7. :"sOtJ12C O G~,, ANU Cy®I~R ~AP~ i~ Y EvAi,~.~°t`Iea~rt Marano i~':~ter evaluates its source, storage, and booster capacity requirements continuously to closely monitor its system capacities required for the capital improvements, to ensure these capacities continue to meet the established standards for the system, and to ici~tttif}T the mast effective locations to place proposed facilities. `'Tables 7.1, 7.2, and 7.3 have been rethoved for security purposes under the Public Health Security and Bioterrorism Preparedness Response Act." Historically, it has taken Marano ~~Vater approximately one year to design, bid, ,and select a contractor to construct a project. Coupled with increased regulatory requirements associated with the environmental impacts- of projects and land ac~luisition, as much as a two to five year timebrame is anticipated for design. Marano Water.. typically sets the capital improvements implementation schedule in two to three year increments. for its most substantial projects, in terms of land acquisition,. environmental and cultural resource clearances, Stormwater Pollution Prevention Plan (SWPPP) development and implementation, and design and wx ~. stud~tc~~~f~flP-;xih~~~14:z~~a-tz~e~~~,l~a4: : ~-, ~ ~> . - .. t .z„.. T ;l~1~i.' ~fC~tf'1 _ ~_ ~_ v 1~E1,. .. ~' ~: ~'~~ P°TER PIw EIdAT1Q Page 7-5 7.4 CC?Ni`Q`TIQIY E s r~2~k? TES The capital improvements and associated costs indicated in this Master Plan are recommended for use by the utility and its rate consultants in the establishment or update of connection fees to the potable water system. These connection fees are for infrastructure required to serve future growth. Infrastructure requited for support of the existing s}'stem has lustorically been funded by rates. There are a variety of ways to calculate the connections fees for a ~,tility system. Marano l~'ater is currently using the .1=.DU system. 7.4.1 Infxasttuctuts Impact Fes The Infrastructure impact fee fiznds for construction of weIls, storage, and booster stations, e.~cept those related to gravity starage facilities and distribution. Gravity Storage and Renewable Water Resource F`ee 7.4.2 Gravity Storags and Renewable latex Reso~cce des The Gravity Storage and Renewable VG'ater Resource fee funds projects relating to Marano t5'ater=s gxatrity starage and distribution, water rights acquisition, and treatment for the buildout water systems. stua~~ ~c8f ~~~', ~t1e~ ?:~i ~~~~~ ~a~~.6agr ~~ .. -.. . ~ ~'::_ , 8131121Q t)t~'rf- r ~~~ r q sr~n, ~4;/ ~v,: ~,~