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"fir J1rn �I TOWN OF ORO VALLEY WATER UTILITY COMMISSION ANNUAL REPORT 2009 TABLE OF CONTENTS Page About the Water Utility Commission...................................................................... l Executive Summary................................................................................................ 3 Introduction............................................................................................................. 6 Customer Service.................................................................................................... 7 WaterQuality........................................................................................................10 CurrentWater Supply............................................................................................13 Water Resources Planning and Management........................................................17 Water Conservation Program................................................................................ 20 UtilityOperations.................................................................................................. 25 Security and Emergency Response Plan............................................................... 28 Engineering and Planning..................................................................................... 30 FinancialHighlights.............................................................................................. 36 Water Rates and Development Fees...................................................................... 38 Appendices A. Utility Statistics B. Water Quality C. Static Water Level Measurements D. Five -Year Capital Improvement Program E. List of Acronyms TOWN OF ORO VALLEY WATER UTILITY COMMISSION ANNUAL REPORT 2009 ORO VALLEY TOWN COUNCIL Paul H. Loomis, Mayor Kenneth "KC" Carter, Vice Mayor Paula Abbott, Council Member Bill Garner, Council Member Barry Gillaspie, Council Member Al Kunisch, Council Member Salette Latas, Council Member ORO VALLEY WATER UTILITY COMMISSION Dave Powell, Chair Winston Tustison, Vice Chair Rick Davis, Commissioner John Hoffmann, Commissioner Robert Milkey, Commissioner Elizabeth Shapiro, Commissioner TOWN STAFF David Andrews, Town Manager Philip C. Saletta, P.E., Water Utility Director David Ruiz, Engineering Division Manager Shirley Seng, Water Utility Administrator Kam Boyce, Water Conservation Specialist Charles Soper, Lead Operator/Water Quality Special recognition to OVWU staff that provided graphics, data, photos and, most of all, their time to assist in the preparation of this report: Iris L. Chaparro Kelsie Hanson Robert Jacklitch Irene Swanson Jeff Kane George Kendrick Mary C. Kobida Mary Miller Carolyn Schneider Christian Swanson ABOUT THE WATER UTILITY COMMISSION The Town of Oro Valley Water Utility Commission is a seven member commission mmission that is appointed by the Town Council. The Commission meets the second Monday of each month to discuss and review matters pertaining to the Water Utility. The Co ' advisory y Commission serves in an isory capacity to Council making recommendations on water polices, water rates and . p � fees, renewable water supplies and water conservation. Currently,of April, 20 as p 09, there is one vacancy on the Water Utility Commission for a Commercial/Turf Representative. In 2008, the Commission met 11 times to conduct business. All meetinga ' agendas are noticed in accordance with statutory requirements through the Town Clerk's Office e and on the Town website. As of November of 2008, the meetings were broadcasted over the Internet through the Granicus System. Meeting minutes are taken and then published after final . p nal approval by the Commission. In addition to the regular Commission meetings, there were several meetings cond ucted ducted for the three Subcommittees. The three Subcommittees include the Finance Su bcommittee, the Water Conservation Subcommittee and the Renewable Water Resources Subco mmittee. Some of the specific actions by the Water Utility Commission and recomme ndations to Council for 2008 include the following: ➢ Election of Officers ➢ Recommendation on Water Rates ➢ Recommendation on the Alternative Water Resources Development Impact Fees 1 ➢ Recommendation on use of Central Arizona Water Conservation District Recharge Facilities ➢ Recommendation on Kai Farms Groundwater Savings Facility 1 ➢ Recommendation for acceptance of the Annual Report � ➢ Recommendation for Membership in the Water Conservation Alliance of Southern Arizona ➢ Recommendation on Intergovertunental Agreement with Northwest Water Providers for future CAP Water Treatment and Delivery Studies ➢ Review and endorsement of Arroyo Grande Special Plan Area —Water Policies ➢ Review and approval of Water Utility Commission Agendas ➢ Review and Approval of Meeting Minutes ➢ Completed annual training requirements and attended a field tour There are numerous issues that will be addressed as we move forward in 2009. Some of the i major issues include: ➢ The development of Central Arizona Project water ➢ Review of a Landscape Code and water conservation measures ➢ Review of water rates and developing a Preferred Financial Scenario ➢ Review of recharge agreements The Water Utility Commission welcomes our customers, citizens and public to att end tend its meetings. -1- WATER UTILITY COMMISSION 2009 Dave Powell, Chair At Large #1 Renewable Water Subcommittee Member John Hoffmann, Commissioner Residential (Town) Renewable Water Subcommittee Chair Winston Tustison, Vice Chair Residential (Town) Finance Subcommittee Chair W, �, Elizabeth Shapiro, Commissioner Residential (Countryside) Finance Subcommittee Member jo_. cQw Richard Davis, Commissioner Robert Milke Commissioner At -Large y' At -Large Conservation Subcommittee Chair Conservation Subcommittee Member • The Commercial and Turf representative remains open. -2- EXECUTIVE SUMMARY TOWN OF ORO VALLEY WATER UTILITY COMMISSION ANNUAL REPORT APRIL 2009 In October 1996 the Oro Valley Town Council (Mayor and Council) formed the Oro Valley Water Utility Commission (Commission) to act as the official advisory body to the Mayor and Council regarding water related issues. The Commission is required to prepare an annual report to the Mayor and Council each year. This report is the Commission's thirteenth Annual Report. It includes topics on customer service, water quality, water supply, water resource planning, conservation, and capital improvements. This report covers information and activities for fiscal year (FI) ending June 30, 2008 and calendar year (CY) 2008. The Executive Summary contains a briefing on several of the Utility's significant operations during this past year as well as projects specific to water issues facing the Town of Oro Valley (Town) in the future. Explanations that are more detailed may be found in the report and the appendices. CUSTOMER SERVICE The Town of Oro Valley Water Utility has 18,330 connections serving a population of approximately 48,454. This includes both the customers within the Town boundaries and the Countryside area. During CY 2008, 295 new connections were installed and approximately 2.57 billion gallons (7,886 acre-feet) of potable water was delivered to our customers. In addition, approximately 575 million gallons (1,764 acre-feet) of reclaimed water was delivered for golf course irrigation. WATER QUALITY For the seventh consecutive year, the Utility is proud to report that it did not experience any l water quality violations for Total Coliform bacteria. The number of tests performed in CY J 2008 was 1,421 and our water quality was in compliance with all standards established by Federal and State agencies. Oro Valley has excellent source water quality. Our Staff s diligent 1 operation and monitoring of the water system is critical to providing a safe and reliable water supply for our customers. CURRENT WATER SUPPLY J Oro Valley currently delivers water from two sources of supply. Groundwater is pumped from wells in the aquifer below the Town and delivered through the potable water distribution system. Reclaimed water is used for irrigation and delivered through a separate reclaimed water distribution system. In addition, Oro Valley has an allocation of Central Arizona Project J (CAP) water that is used indirectly through storage credits. x11 Although there have been recent rains, continuation of a long-term ' . g drought persists. Both the drought and the continued pumping of groundwater have caused row g ndwater levels to further decline, which in turn reduced the production capability of the existing p y sting system. Completion and implementation of the Reclaimed Water System has slowed the roun ' groundwater decline to an extent, thus conserving, preserving and protecting our aquifer and our gr oundwater supply. The use of reclaimed water is a significant accomplishment, but it is not t the only renewable source of supply available to assure a sustained reliable water supply. 1 . The Utility well continue its water resource planning effort to meet existing and future demands through th e he development of its CAP water allocation. The planning and development ' p g p of our CAP water is being done cooperatively by the Northwest Water Providers which include s Marana, Metro Water, Flowing Wells, and Oro Valley. In CY 2008 approximately 8,625 acre-feet of groundwater was from pumped the aquifer. This is approximately 666 acre-feet less than CY 2007. Approximately 1 pp y ,764 acre-feet of reclaimed water was delivered for golf course irrigation. Delivering g reclaimed water significantly reduces our demands on the aquifer and groundwater supplies. Well w ' pp water levels decli ned an average of 1.81 feet in the Oro Valley Water Service Area and increased 3.26 feet in the Countryside Water Service Area in the last year. The Utility continues to use its CAP water through an agreement with Kai Farms. This agreement allows the Utility to obtain long-term groundwater storage credits within the Tucson Active Management Area. Participation in the Lower Santa Cruz River Managed Recharge Project also provides the Utility with long term storage credits from unused wastewater effluent. These long-term storage credits are used to offset groundwater pumping costs assessed by the Central Arizona Groundwater Replenishment District (CAGRD). The Water Utility continues to plan for the direct delivery and treatment of its CAP water. RECLAIMED WATER SYSTEM In October 2005, the Town of Oro Valley began delivering reclaimed wa ter to the three existing golf courses north of Tangerine Road. In June of 2008 reclaimed water deliv eries began to the Hilton El Conquistador North Golf Course. In October of 2008 , reclaimed water deliveries for irrigation uses began to Painted Sky Elementary athletic fields . y y elds and Hilton El Conquistador South Golf Course. In 2008 these five golf courses and Painted Sk y ky Elementary used approximately 575 million gallons or 1,764 acre feet of reclaimed water for irrigation rrrgation purposes. This resulted in a reduction of approximately 17.1 % of groundwater pumping. WATER CONSERVATION The Water Conservation Program continues to be a vital asset in assisting' the Utility to achieve its overall water management goals. During the past year, the primar y focus of the conservation program continued to be on residential water use audits. Since the' pro gram s inception in 2003, participating customers have received over 1,000 free water' audits, which saves our customers both water and money. The Utility encourages water conservation b educating our customers this is a keyon y component ent of the Water Conservation Program. -4- Stage 1 -Drought Conditions are currently in place. This condition calls for voluntary restrictions under the Town's Drought Preparedness Plan. Oro Valley continues to participate regionally with other water providers through the Water Conservation Alliance of Southern Arizona (Water CASA). WATER RATES AND IMPACT FEES The functions and duties of the Water UtilityCommission and Staff ' include reviewing and developing recommendations for re water revenue requirements, water rates and fee structures. In 2008, recommendations regarding water rates were provided in a p separate report. The Water Rates Analysis Report was submitted to the Town Council and ' a water rate Increase was approved on November S, 2008 by Resolution(R)08-77. The a ro . approved water rates included an increase to the water usage rate and an increase in the Groundwater Preservation Fee. The increases went into effect on December 6, 2008. On September 3, 2008, the Town Council approved increases in the e Alternative Water Resources Development Impact Fees by Ordinance (0) 08-14. These fee s went into effect on December 2, 20080 CONCLUSION The Oro Valley Water Utility Commission is proud to serve the Mao ' p Mayor and Council of the Town of Oro Valley and its residents and customers. We are to leasedpresent this Annual Re P Report to the Mayor and Council for their consideration. While much has been accomplished in the past year, the Water Utility Commission and Staff look forward to direction regarding those items detailed in the Report. We thank the Mayor and Council ' Y for their consideration, direction and guidance. Any questions regarding this report should be directed to PhilipSaletta D' Water Utility • • , erector, Oro Valley Utility at 229-5010. Additional information for the Oro Valle Water ' y Utility can also be found on the Town website at ov . www.orovalle az/WaterUtili . � ty -5- INTRODUCTION The Oro Valley Water Utility is completing its twelfth year of operation. During this time, the Utility has achieved a number of significant goals. The Utility installed 295 new water connections in CY 2008, a 1.6% growth rate, for a total of 18,330 water connections. We continue to operate under the Intergovernmental Agreement with Tucson Water regarding the delivery of reclaimed water to the Thornydale Pump Station. Phase 2 of the reclaimed water system is now complete and began delivering reclaimed water in 2008. The Utility has also implemented several programs including system -wide continuous disinfection, water conservation, and security. The Utility's infrastructure has grown to meet existing and growing demands with the addition of 500,000 gallons new potable reservoir capacity, the addition of one well having a capacity of 700 gpm, 13 miles of potable water mains and 1.75 miles of reclaimed water mains. The Utility continues to be fiscally sound and has implemented appropriate increases in water development fees which are paid by new growth. In addition, the Utility has taken steps to keep pace with rising costs for operations and maintenance performing a rates analysis and getting an approved rate increase. This increase also included an increase in the Groundwater Preservation Fee which will pay for renewable water supplies that will reduce existing demands on our aquifer. In addition, the Utility received a low interest loan from the Arizona Water Infrastructure Authority for Phase 2 of the Reclaimed Water System. The following are some of the Utility's resources and assets as of December 31, 2008: Resources: Employees: Groundwater Supply (Assured Water Supply): Reclaimed Water: Effluent Water: CAP Water: Long Term Storage Credits: Groundwater Allowance Account: Assets: Water Service Areas: Water Distribution Storage Reservoirs: Potable Water Reservoir Capacity: Reclaimed Water Reservoir Capacity: Water Mains: Potable Water Booster Stations Reclaimed Water Booster Stations: Operating Wells: Well Pumping Capacity: 36.5 13,3 84 Acre-feet per year 2,500 Acre-feet per year 1,500 Acre-feet per year 10,305 Acre-feet per year 17324 Acre-feet 9,974 Acre-feet Oro Valley Water Service Area and Countryside Water Service Area 18 8,700,000 gallons 1,500,000 gallons 351 miles 27 1 19 10,861 gallons per minute (gpm) The Utility continues to plan for future water supply both for existing customers and new growth. This is demonstrated by the cooperative regional planning for the delivery and treatment of CAP water. This cooperative effort is with our neighboring water providers: Metro Water, Town of Marana and Flowing Wells. n CUSTOMER SERVICE Customer Service personnel include Customer Service Representatives (CSR) and Utility Operators. This staff is responsible for meter reading, billing and collection for 18,330 customer connections serving approximately 48,454 people. The Utility has grown over the past year and in 2008 an additional 295 meters were installed for a growth rate of 1.61 %. Over 4,716 customer accounts were changed in 2008, primarily due to opening and closing of accounts for new move -ins and winter residents. The Utility delivered 2.57 billion gallons (7,886 AF) of potable water to our customers in 2008 and over 575 million gallons (1,764) of reclaimed water for irrigation to five golf courses. This 7,886 AF is the amount of water that was billed to our customers based upon billing meter readings. The billed amount is approximately 8% less than the well production amount of 8,625 AF. This is due to what is known in the water industry as unaccounted for water. Unaccounted for water is a result of the timing differential of billing meter readings, under registration of older inaccurate water meters, and unmeasured system losses from pipeline leaks and breaks. The Customer Service Division mailed and processed 219,962 bills and delinquent notices to our customers during calendar year 2008. The Customer Service Division responds to customer concerns that arise from the operation and management of the water system and in 2008 responded to 43,016 customer contacts. This is an average of 169 customer contacts per day. These inquiries range from general questions to specific questions or problems that may occur related to billing, opening or closing an account, water quality or pressure and flow problems. CSRs work closely with field personnel to respond in a timely manner to customer concerns. Customer Service Representatives are generally the first and sometimes the only contact our customers may have with Utility personnel. Their training and skills are implemented on a daily basis to address customer concerns. Ongoing training provided to CSRs include: stress management, dealing with difficult people, utility billing software and security. Staying abreast of new information is a key element to consistently improving customer service as well as providing for the mental and physical well being of Utility employees. The Customer Service Supervisor prepares information regarding water usage for the Annual Water Withdrawal and Use Report that is submitted to the Arizona Department of Water Resources. This report is for the calendar year and is required under the State Groundwater Code. This report accounts for water use as part of the Assured Water Supply Program and assists with determining the obligation due to the Central Arizona Groundwater Replenishment District. The CY 2008 Report is reviewed internally and then submitted to the ADWR by March 31 st of 2009. Customer Service collects and posts payments for the Water Utility, Pima County Regional Wastewater Reclamation Department and the Town's Storm Water Utility. A fee is charged to Pima County and the Town for this service. The Customer Service Division bills the Town Storm Water Utility charges to residents within the Town that are Oro Valley water customers, Tucson Water customers and Metro Water customers. The Water Utility also collects taxes on water use that are imposed by the State of Arizona and the Town of Oro Valley. These taxes are then distributed to the State and Town. -7- The Utility continues to update customer account information on the Water on the Web (WOW) site on a weekly basis. The information includes current billing and payment information as well as a two year history of water usage. The Customer Service Division will be examining the possibility of expanding this site in 2009. The Utility frequently receives inquiries regarding on-line payment capability to facilitate payment of water bills. In addition, to enhance customer service and to assist in decreasing costs, the Utility is exploring adding the e-bill feature that is available through the billing software. The Utility currently offers an automatic payment program via an Automated Clearing House (ACH) in which the amount of the customer's water bill is automatically deducted from their checking or savings account. Approximately 4,500 customers are currently enrolled in this program. The Utility accepted 3,225 credit card payments in 2008. The successful implementation of this service has provided an alternative payment method particularly for those customers with delinquent accounts and those customers who frequently travel. Over the past year, the Customer Service Division has received numerous complimentary letters regarding their personal and helpful customer assistance. This level of professional and courteous services is paramount to the successful operation of the Water Utility. Utility statistics including new meter installations, customer contacts, and water deliveries for CY 2008 may be found in Appendix A. Meter Reading and Replacement All Meter Readers are licensed operators and they conducted 212,162 meter readings in 2008. Field Staff responded to 2,684 work orders generated by the CSRs. Meter Readers Staff responded to 1,663 customer requests in the field. Distribution Staff responded to the 1,021 customer requests in the field. These include checking meter accuracy, meter replacement, water quality, water pressure and leaks. Staff works closely with the builders and contractors of Oro Valley to ensure that the water meters are installed on a timely basis. The Utility initiated a formal Meter Replacement Program in October of 2008. To successfully implement this program, a new position for a Meter Reader Supervisor was approved in the budget and hired. The main objectives of this position are to manage and monitor the Meter Replacement Program (MRP), provide direct supervision to the meter reading staff and implement the Automated Meter Reading (AMR) equipment installations. Additionally, this position uploads and downloads the meter reading equipment and manages route assignments for the respective meter reading staff. In order to fully implement the MRP, all data in the existing customer base has to be updated with meter installation and maintenance information. While this is being done, Meters staff is identifying the obvious meters that need to be replaced. Obvious being when a meter registers zero usage or erratic usage. Staff creates their own work orders and when they are not reading meters, they go back out, check the meter for accuracy and replace if necessary. Since July 2008, a total of 561 meters have been replaced. To give you some perspective, the Utility replaced a total of 504 meters over the 6 year period from 2001 through 2007 compared to 561 meters replaced in the first 8 months of this fiscal year. Metered water usage will be analyzed to determine the difference (increase) in the accurately measured water use data and how it relates to billing revenue. -R- The Meter Replacement Program will provide for more accurate measurements of water usage and also increase revenues. In addition, it is one of the Best Management Practices approved by the ADWR to meet water conservation requirements. In WATER QUALITY There is a complex and extensive framework of regulatory requirements and sampling methodology in place to ensure clean, safe drinking water is served by every public water system in Arizona. Protection of drinking water quality starts with an assessment of the drinking water source quality and continues through regulations that govern water system design and construction. Finally, drinking water quality is assured through scheduled tests required of all public water systems for a wide variety of potential contaminants. As a result of these regulations and continued testing, drinking water supplies in Oro Valley and in many areas throughout the United States are among the cleanest and safest in the world. Water Quality Testing The Water Utility operates two potable water systems. The Oro Valley Water Service Area (OVWSA) that has a Public Water System Number of AZ0410164. It also operates a potable system that is not located within the Town boundaries, known as the Countryside Water Service Area (CSWSA) that has a Public Water System Number of AZ0410175. Over the course of a year the Utility collects hundreds of water samples from approximately 19 "point of entry" sites. These sites include groundwater wells, reservoirs and pumping stations. The Utility also samples from 58 "sampling stations" located in neighborhoods throughout the water distribution system specifically selected to represent the water quality that is delivered to our customers. Water samples are taken from 50 private residences within the Oro Valley area and tested for lead and copper. The Utility provides all water quality testing results to the Arizona Department of Environmental Quality (ADEQ) and works closely with that agency to ensure all federal and state standards are met. -1 o- The Utility's State certified water operators are legally responsible for the health and safety of our customers. The operators meet this responsibility by maintaining a daily vigilance over the system's production, distribution, and water quality. All of our water operators are licensed and attend continuing education and training through Personal Development Hours required by ADEQ. This also benefits our community and adds value to the Water Utility. Additionally, comprehensive emergency plans have been developed to ensure an immediate response to any adverse water situation. The Town's water system is in full compliance with all State and Federal regulations. In 2008 the Utility received 1,421 analytical results for required water sampling and operational data. Please refer to Appendix B for the Environmental Protection Agency's required contaminant monitoring list and the Utility's most recent analysis. Drinking water standards are regulations that the Environmental Protection Agency (EPA) sets to control the level of contaminants in the nation's drinking water. These standards are part of the Safe Drinking Water Act's "multiple barrier" approach to drinking water protection which includes, assessing and protecting drinking water sources; protecting wells and collection systems; making sure water is treated by qualified operators; ensuring the integrity of distribution systems; and making information available to the public on the quality of their drinking water. Community water suppliers throughout the country are required to provide an annual water quality report to their customers. The report provides information about the source of the drinking water, and any contaminants detected in the water. The OVWSA and the CSWSA Consumer Confidence Reports are annually distributed to all customers in June. The Report is also available in the Utility's office and on the website. There are two categories of drinking water standards. A National Primary Drinking Water Regulation or (primary standard) is a legally enforceable standard that applies to public water systems. Primary standards protect drinking water quality by limiting the levels of specific contaminants that can adversely affect public health and are known or anticipated to occur in water. They take the form of Maximum Contaminant Levels (MCL) or Treatment Techniques. A National Secondary Drinking Water Regulation or (secondary) standard is a non -enforceable guideline regarding contaminants that may cause cosmetic effects (such as skin or tooth discoloration) or aesthetic effects (such as taste, odor, or color) in drinking water. The EPA recommends secondary standards to water systems but does not require systems to comply. However, ADEQ requires the Utility to sample these contaminants every three years. A contaminant list and the most recent analysis for the Utility are included in Appendix B. Detection of a contaminant in drinking water does not necessarily represent a threat to public health. Current technology allows water utilities to detect extremely low levels of contaminants in drinking water. All drinking water, including bottled water, may reasonably be expected to contain at least small amounts of some contaminants. Oro Valley's groundwater contains naturally occurring dissolved minerals and organic compounds, which have been leached from the rock, sediments, and plant materials through which the water traveled. One would expect to find constituents (ions), such as calcium, magnesium, chloride, bicarbonate, sulfate, and metals such as iron, copper, arsenic and lead, which may be either beneficial or harmless at low concentrations. However, these constituents are harmful at high concentrations. -11- F Other contaminants that maybe present in source water are microbial contaminants, such as viruses and bacteria. The Utility disinfects its water source by adding sodium hypochlorite at a level of 0.2 to 0.5 parts per million (ppm), as a precaution against bacterial growth. The Total Coliform bacteria group is used as an indicator to more closely monitor the distribution j— system for possible unwanted bacteria. During 2008, the Utility collected 700 samples for L analysis of Total Coliform bacteria, of which one sample resulted positive for bacteria. The State Drinking Water Rule requires that when a positive sample is detected, that three repeat (� samples be taken within twenty-four hours. The three repeat samples were negative for L bacteria and therefore no violation for total coliform occurred. This is a direct result of a successful disinfection program, effective system monitoring, proficient sampling methods, and routine maintenance. Two inorganic compounds found in groundwater are presently of special interest. These compounds are arsenic and fluoride. Arizona is among a handful of western states whose soil contains naturally high levels of arsenic, which can increase risks for some types of cancer. As of January 2006, all water systems were required to comply with the EPA's new MCL for arsenic of no more than 10 parts per billion (ppb) as compared to the previous standard of 50 ppb. EPA estimates that approximately one-third of the systems nationwide subject to the new standard presently exceed the 10 ppb arsenic standard. In 2007, the Utility conducted compliance tests for arsenic in its wells. All "points of entry" to the drinking water system were reported less than 5 ppb. These results are significantly below the new arsenic MCL. Fluoride at a level of 1.0 ppm has been shown to help prevent tooth decay. In high concentrations however, fluoride can be harmful. Oro Valley's groundwater has fluoride at low concentrations ranging from 0.14 to 0.62 ppm. The Utility regularly receives inquiries concerning water hardness. Water hardness is a measurement of the concentration of calcium and magnesium. The hardness levels in Oro Valley range from 1.8 to 6.4 grains per gallon. These levels are considered low and as such water softeners would not be required. Hardness levels above 10 grains per gallon could shorten the life of water using appliances. Water quality standards are continually researched and regularly modified and changed based on scientific research. In early 2006, EPA released the STAGE 2 Disinfectants and Disinfection By -Products Rule. This is an important component to the agency's multi -pronged strategy to reduce drinking water risks to human health through improved standards for pathogens as well as disinfection by-products. The new Groundwater Rule scheduled for release in December of 2009, is expected to require many small groundwater systems to add disinfection to their systems. The Utility's disinfection program was implemented for both systems in 2002 and presently meets the Ground Water Rule requirement. EPA's rule revisions to Lead and Copper was published in 2006. The revisions are a targeted update of the current rule including guidance on lead in drinking water in schools, including information on improved testing, monitoring and maintenance efforts. Oro Valley is a growing community in an and environment. The future of drinking water quality will continue to command serious attention by everyone involved with water supply for the community. Water quality compliance requirements will continue to increase in both complexity and cost, requiring the support and resources needed to ensure regulatory compliance and to provide a safe and reliable water supply to our customers. -12- CURRENT WATER SUPPLY Developed Water Resources • Groundwater: 13,384 acre feet per year • Reclaimed water: 2,500 acre feet per year The Town of Oro Valley has a groundwater supply of 13,384 acre feet (AF) per year based on its Designation of Assured Water Supply (AWS) on the Arizona Department of Water Resources (ADWR). Under our AWS for each calendar year our groundwater pumping cannot exceed this amount. In 2008, Oro Valley pumped 8,625 AF of groundwater. A requirement of our Assured Water Supply Designation is that the Town must be a member of the Central Arizona Groundwater Replenishment District (CAGRD). Each year, the CAGRD assesses the Town an increasing portion of the annual groundwater pumped at an increasing rate to replenish what is deemed "excess groundwater withdrawal". Excess groundwater withdrawals are equal to our total groundwater produced from our wells less the amount pumped from our permitted recovery wells. Recently the Water Utility applied for and was issued permits for recovery wells to decrease our excess groundwater withdrawals. In the short term future, this will help to defray a portion of the increasing CAGRD costs and obligations. The Utility has been accruing Groundwater Credits by recharging CAP water at the Kai Farms and Central Arizona Water Conservation District (CAWCD) recharge facilities which will also aid in decreasing our monetary payments to CAGRD. Membership in the CAGRD does meet the requirements for our Assured Water Supply Designation; however, it does not provide "wet" water to the Town of Oro Valley. This is because the Water Utility and the CAGRD do not artificially recharge in the vicinity of the Oro Valley aquifer. Furthermore, the recharge projects or facilities utilized, although located in the Tucson Active Management Area, are also not located near and do not recharge the Oro Valley aquifer. Generally the recharge facilities are located in proximity to the CAP Canal. The Water Utility operates in two water service areas: The Oro Valley Water Service Area (OVWSA) and the Countryside Water Service Area (CSWSA). The current well capacity that the potable water system could deliver at a peak flow is 9,076 gallons per minute (gpm) in the OVWSA and 1,785 gpm in the CSWSA. This is equal to 13.069 million gallons per day (MGD) for the OVWSA and 2.57 MGD for the CSWSA. For the average annual day in 2008, our potable water customers used 6.96 million gallons in the OVWSA and 0.70 million gallons in the CSWSA. The peak day was 10.87 MGD for the OVWSA and 1.18 MGD for the CSWSA which occurred on June 23, 2008. Groundwater studies indicate that the Oro Valley aquifer has a sustainable groundwater production rate of approximately 5,500 acre-feet per year. This sustainable amount is based upon study conducted in 2007 entitled Groundwater Production Sustainabiliiy Evaluation of the Oro Valley Aquifer. This study analyzed our well water levels and what amount of pumping could occur that would not draw down well water levels below 100 feet above a specific hydrostratigraphic contact zone in a 30-year period. In 2008, well production was 8,625 acre-feet of groundwater from our aquifer. This resulted in pumping our aquifer 3,125 acre-feet more than the sustainable groundwater production rate. To monitor the impact on the Oro Valley aquifer, each year the Utility measures the groundwater levels in all of its wells. -13- For wells in the OVWSA, the average annual groundwater level decline for the last 5 years is 3.89 feet and the average groundwater decline r for calendar year 2008 is 1.81 feet. For wells in the CSWSA, the average annual groundwater L level decline for the last 5 years is 1.04 feet and the average groundwater rise for calendar year 2008 is 3.26 feet. For all wells, water level changes in CY 2008 ranged from a decline of r 12.5 feet to a rise of 11.9 feet. Detailed information on the individual wells and their L associated water levels may be found in Appendix C. Water level declines combined with taking wells temporarily out of service due to [ maintenance and repairs can cause a decrease in production capacity in our wells. In 2008, we only operated 19 wells as compared to 20 in 2007. However, due to higher production rates for the wells operated in 2008, there has been only a slight decrease in total production capacity. The Water Utility Staff will continue to monitor our well water levels and production capacity and plan for future well replacements and improvements to minimize well production capacity losses. Regardless of individual well and total well field production capacity, over the long term, reducing groundwater production to a sustainable amount provides the only assurance of preserving and protecting our aquifer and minimizing water level declines. Current system demands, coupled with less than average rainfall over the last several years, are large contributors to declining groundwater levels. Although there have been good summer and fair recent winter rains, we are currently in a Stage 1 Drought Condition. Although there has been an increase in rainfall over the last three years, the impact of previous drought years significantly reduced natural recharge to our aquifer. Even under normal rainfall conditions it would take many years for the water table to recover to previous levels. The use of reclaimed water has helped to reduce the impact on the Oro Valley aquifer over the last three years. The Town of Oro Valley currently has a reclaimed water supply of approximately 2,500 AF per year. This was acquired in 2003 under an Intergovernmental Agreement (IGA) with Tucson Water. The IGA contains a complex formula for computing the annual allotment of effluent produced from the wastewater from Oro Valley. The Town's effluent is treated at Pima County Wastewater Facilities and then treated again at Tucson Water's Sweetwater Reclamation Facility. From there Oro Valley's reclaimed water is delivered through Tucson Water's reclaimed water conveyance system to Tangerine and Thornydale where it is pumped into Oro Valley's reclaimed water pipeline and distribution system. Undeveloped Water Resources • Central Arizona Project Water: 10,305 acre-feet per year • Long Term Storage Credits: 17,124 acre-feet • Ground Water Allowance Account 9,974 acre-feet • Effluent Water: 1,500 acre-feet per year The Town currently has an allocation of CAP water in the amount of 10,305 AF per year under a Municipal and Industrial (M&I) subcontract with CAWCD. This M&I water subcontract for Central Arizona Project water is critical to the Town and its future water supply. At this point in time, the infrastructure necessary to convey CAP water to the Town does not exist. The Water Utility is cooperating regionally with Metropolitan Domestic Water Improvement District, Flowing Wells Irrigation District, and the Town of Marana to build a treatment and delivery system for CAP Water. -14- Currently, the Town uses its CAP water for recharge pursuant to agreements with Kai Farms and the Central Arizona Water Conservation District (CAWCD). In 2008, the Utility entered into agreements with the CAWCD to store the Town's CAP water at the AVRA Valley Recharge Project, the Lower Santa Cruz Replenishment Project and the Pima Mine Road Recharge Project. The Utility stored 3,200 acre-feet of CAP water in 2008 under the Kai Farms Agreement. In addition, the Water Utility stored an additional 1,000 acre-feet in CAWCD Pima Mine Road Recharge Facilities in 2008. Long term storage credits have accumulated to approximately 17,124 acre-feet. Additionally, the Utility is a partner in the Lower Santa Cruz Managed Recharge Project in which effluent water is recharged in the lower Santa Cruz River. Long term storage credits accrued through this project were approximately 105 acre-feet in 2008. The Utility will continue to use long term storage credits to reduce a portion of the costs that are assessed annually by the CAGRD. The Utility will continue to recharge CAP water until such time the water is needed for direct delivery. In addition to our long-term storage credits, our Groundwater Allowance Account must be used wisely and carefully managed over the next several years. This account has been depleted over the past 10 years to less than 10,000 acre-feet. In 1996, this account initially started with approximately 75,000 acre-feet of groundwater. In 2009, this will be increased by the purchase of Groundwater Extinguishment Credits (GEC) from Tucson Water. If available, additional purchases of Groundwater Extinguishment Credits will be considered in the future to increase the balance of the Groundwater Allowance Account. By purchasing GECs, the Water utility is saving its customers money by reducing payments and obligations to the CAGRD. Included in the Town's Designation of Assured Water Supply is 4,000 AF per year of effluent which is the source of supply for our reclaimed water. With the recent completion of Phase 2 of the Reclaimed Water System, the Town has a capacity of 2,500 acre-feet. In 2008, 1,764 acre-feet of reclaimed water was used because the system was not fully operational until October of 2008. The Reclaimed Water System will supply irrigation for five golf courses and the athletic fields at one elementary school. The remaining amount of 1,500 AF per year of effluent is used for obligations to Pima County and for the Southern Arizona Water Rights Settlement obligations. Any unused effluent will be available to the Town in the future for additional growth. This effluent may be used for reclaimed water or for groundwater storage credits. Oro Valley receives its effluent as reclaimed water under an IGA with the City of Tucson. Tucson Water is obligated to treat and deliver up to 3.75 MGD of reclaimed water daily to Oro Valley Water Utility. On days when additional reclaimed water is available, OVWU has received up to 4.4 MGD which is the maximum pumping rate for the pumps at Thornydale Reservoir and Pump Station. Under our Assured Water Supply Designation, we are required to comply with the Third Management Plan in the Tucson Active Management Area. As part of the Third Management Plan there is a requirement to meet the gallons per capita per day (GPCD) limits calculated by ADWR. In November of 2008, we received a notification letter from ADWR indicating that in years 2000 through 2005 Oro Valley exceeded the GPCD limits. In 2006, we did not exceed the GPCD limits. We have met with ADWR to resolve this matter and at those meetings it was discussed that the 2007 GPCD limit will not be exceeded. At the last meeting, we were informed that ADWR may not take any further action on this matter, because during the last two years OVWIJ did not exceed the GPCD limit. This is still being discussed -15- internally at ADWR and we hope to receive a final decision from them by June of 2009. The reason we did not exceed the 2006 and 2007 GPCD limit was due to the use of reclaimed water which reduced the amount of groundwater usage. We fully expect that to continue in the future and therefore we will not exceed the GPCD limit. -16- WATER RESOURCE PLANNING & MANAGEMENT The Utility has a water resource planning effort that incorporates a Groundwater Action Plan, the Potable Water System Master Plan, the Reclaimed Water System Master Plan and the Northwest CAP Water System Cost Estimate and Alternatives Review Study. The Water Utility in cooperation with the other NW Water Providers is participating in a pipeline routing study for the delivery of CAP water. Water resource planning will investigate alternatives for future water supply and delivery. It will include the following: ➢ Groundwater development (new and replacement wells) ➢ Reclaimed Water System ➢ Central Arizona Project water (new CAP water treatment and delivery) ➢ Water Conservation and Drought Management Water resource planning will involve technical, financial, legal, political, institutional and environmental issues. Involving the public will be a key aspect of a successful program for future water supply. Funding for the Water Resource Plan has been included in the Utility's budget for FY 2009-10 under the Alternative Water Resources Development Impact Fee Fund Budget. Reclaimed Water The second phase of the Reclaimed Water Delivery System is complete. The use of reclaimed water for turf irrigation has a beneficial impact on the Utility's ability to meet potable water demands during peak use months. The Utility will continue to look for opportunities to expand the customer base of the reclaimed water system for turf irrigation such as the proposed Naranj a Town Site. In addition, non -turf irrigation uses such as landscape irrigation, construction water, dust control, car washes, street cleaning and recreational uses may also be served with reclaimed water and help reduce demands on the groundwater aquifer. The recently completed La Canada Roadway Improvements Project and Phase 2 Reclaimed Pipeline Project used reclaimed water for construction, pipeline testing, and dust control purposes. Public Works is currently using reclaimed water for street cleaning and other approved maintenance purposes. This saves the Town both water and money. Even with the use of reclaimed water, Oro Valley will remain dependent on groundwater for a portion of their water supply now and in the future. The Potable Water System Master Plan indicates the need to continue to add new wells and rehabilitate existing wells even with implementation and expansion of the reclaimed water system. Northwest Water Providers CAP Water Treatment and Delivery System The Town has been cooperating with other Northwest area water providers, Metropolitan Domestic Water Improvement District, Flowing Wells Irrigation District, and the Town of Marana (Northwest Water Providers) to develop a regional CAP water treatment and delivery system within the northwest Tucson area. These four entities cooperate together under a Memorandum of Understanding. In 2007 a study entitled Northwest CAP Water System Cost Estimate and Alternatives Review -17- Study was conducted by Carollo Engineers for the Northwest Water Providers. In addition, a financial study was conducted by Stone &Youngberg to estimate the debt service for the individual Northwest Water Providers. The report by Carollo Engineers included costs for a proposed treatment plant, booster pump station and pipeline alignment from the CAP canal near I-10 and Tangerine Road. The pipeline would be aligned along Tangerine Road and would bifurcate to deliver water to Marana, Flowing Wells, Metro and Oro Valley. Another alignment was also investigated along I-10 south to Linda Vista. Additional alignments are currently being investigated to determine the best alternative. In addition to these facilities, a reliability water storage reservoir would be needed to be constructed by the U.S. Bureau of Reclamation as part of the Central Arizona Project. Central Arizona Project Canal The proposed system would be designed to deliver 30,000 acre-feet per year (26.8 million gallons per day) of CAP water into the northwest area. Oro Valley would participate in the project for 10,000 AF or approximately one-third of the project. Costs will be split among the four participating water providers according to their system capacity and delivery location. Oro Valley's share of this project is estimated to be 65 million dollars in capital costs with a debt service of approximately 4.1 million dollars per year for Phase 1 of this project. The Northwest Water Providers are planning for delivery of CAP water to start by midyear of 2014. The Town of Oro Valley is committed to the direct use of CAP water and will continue to work with our partners to see that this concept becomes a reality for our communities. The Northwest Water Providers are also conducting a study on the CAP delivery system which includes an analysis of potential pipeline routing and proposed pump stations. This work is being conducted under a contract with WestLand Resources. Preliminary work under this study indicates there are two preferred alternatives. The Northwest Water Providers are reviewing and evaluating this work to determine the best pipeline route and pump station locations. It is planned to complete this study by summer of 2009. -18- In 2008, the Northwest Water Providers received approval of an Intergovernmental pP g tal Agreement to allow for future studies regarding our joint cooperation to construct a p CAP Water Treatment and Delivery System. In addition, we have worked cooperatively with p y the U.S. Bureau of Reclamation and the Central Arizona Water Conservation District regarding g g the Northwest Reliability Reservoir which is important for the water storage component of thisg p project. The Water Utility is also planning to contract for studies to provide recommendations regarding the efficient delivery and distribution of CAP water throughout the Town's water service area. This work will include conducting a pilot studies for distribution system water .� quality and the effect of the treated CAP water on existing system pipelines. JCAP Water Treatment Pilot Study Project The Town of Oro Valley, along with the other Northwest Water Providers, has developed a 'j pilot study in cooperation with the Bureau of Reclamation and the University of Arizona to � investigate water quality and salinity issues related to the treatment of CAP water. This pilot study will be conducted for several years to investigate several alternatives for the treatment of CAP water. It also includes studying concentrate management options such as the use of halophyte (salt tolerant plants) irrigation as a means of disposing of the concentrate (salts) created by using reverse osmosis. This project is located on the west side of Interstate 10 and south of Tangerine Road. The results of this study are encouraging in terms of concentrate management. Slow -sand filtration, reverse osmosis, and enhanced reverse osmosis methods have been studied and results are very encouraging. Amicro-filtration process has recently Ibeen installed for the pilot study and will be evaluated. This pilot study will continue through calendar year 2009. Water Conservation Water conservation will continue to be an important element in the overall management of our water resources. With declining water levels and potential water shortages on the Colorado River, educating our customers in conservation methods should remain a priority. The Utility's water conservation and drought management programs are discussed in the following section. -19- WATER CONSERVATION PROGRAM I Water conservation is an important factor in balancing our current and future needs. Climate and the demands on our water supply place a significant impact on our water resources. Combine the state's and climate with persistent drought conditions and the importance of managing our resources effectively becomes even greater. The Utility recognizes the complexity and importance of sustained reliability. The water conservation program is an important element in the overall water resource management efforts of the Utility. The water conservation program focuses on water audits, youth and adult education, incentives and cooperative relationships involving current issues and research. The following paragraphs provide insight into the various policies and programs that support water conservation for our customers and community. Water Audits Residential, homeowner association common areas and commercial water audits continue to function as a key element in the water conservation program. Audits are valuable educational tools that create an awareness of water consumption by homeowners, businesses and communities as a whole. One hundred and forty-five (145) water audits were completed in 2008. Figure 1 illustrates the average number of audits conducted on a monthly basis from 2004-2008. The total number of water audits conducted since the program began in 2003 is approximately 1,000. Figure 1 AVERAGE MONTHLY PARTICIPATION 2004-2008 25 - 0 W f- 20 W J a 15 O V 10 - N H � 5 Q 0 JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC MONTH Audits allow for a number of important conservation issues to be addressed while maintaining a cooperative relationship with our citizens and customers. As part of these free audits, customers are informed on general water conservation practices and principles. Irrigation -20- systems and swimming pools, as well as interior household fixtures and appliances, are assessed for efficiency and proper use methods. Water use strategies are specifically tailored to the individual's water use habits and landscape needs. In addition, any observed leaks or equipment malfunctions are brought to the attention of the customer. Data collected during the audit is used to assess and recommend changes that may be needed to improve water use management. The Utility also uses the data collected in audits to identify the concerns of customers and help direct the focus of the conservation program. Analysis of these statistics allows the Utility to identify trends in town -wide water consumption and helps evaluate the progress of the program. Water use by audit participants is tracked for the year prior to the audit and then compared to their use for a minimum of one full year after the audit. In 2007 water consumption dropped approximately 25% in the first year after the audit resulting in an average water savings of over 4.4 million gallons. This is illustrated in Figure 2. Figure 2 Pre and Post Audit Water Use E ramyrrt 1 Year Later) %fi 4 « � 2V, VV0, 0U0 157000,000 ■ Pre Audit * Post Audit X 2007 2006 2005 2004 2003 Education and Resources Enhancing education, communication and water conservation related services for customers and the community is a very important aspect of the conservation program. The Utility is continually revising and assessing its services. Staff is evaluating the potential to provide a series of conservation classes to the residents of Oro Valley in 2009. The Utility provides a wide variety of adult and children s literature through various channels. The literature is free to our customers and is distributed through our main office, Oro Valley Library, at Town events, and during water audits. Landscape irrigation schedule cards are also available for watering guidelines related to plant types. In addition to literature, the Utility also offers toilet dye strips for leak detection purposes along with low flow shower heads, faucet aerators and in -line shut off valves to retrofit existing shower heads. -21- Professional Memberships and Affiliations The water conservation staff continues to work with all divisions of the Utility and other departments within the Town. In addition, the Utility maintains memberships in professional organizations as a means of keeping up to date on current technology and providing progressive training for staff. The memberships include the American Water Works Association, the Irrigation Association and the Water Conservation Alliance of Southern Arizona (Water CASA). Reclaimed Water System The Utility has expanded the reclaimed water delivery system and planning is under way for the future delivery of CAP water. These steps will bring renewable water to our community and will reduce the demands placed upon the aquifer. However, it will not eliminate the necessity for continued pumping of groundwater at flow rates that may exceed the capacity of natural recharge. Conservation of groundwater resources is an integral part of the Town's future sustainability. Drought Preparedness Plan The Utility has complied with a directive from ADWR by creating and filing a Drought Preparedness Plan (DPP). The Town of Oro Valley maintained Stage 1 drought conditions throughout 2008. This condition calls for voluntary restrictions under the Town's DPP. The DPP lists four drought stages that are possible. Each stage identifies specific actions and restrictions that apply to all customers and Town facilities. Drought stages may change when two or more of the subsequent criteria or triggers are met. Criteria include temperature, precipitation, US Drought Monitor levels, and annual average decline of static water levels (groundwater). Incentives The current incentive program includes irrigation system rain sensors which are sold at a reduced rate to our customers. To date, approximately 621 rain sensors have been sold to customers with active accounts. In an effort to better serve the customers, a Rain Sensor Installation Guide has been developed and is now distributed by the Utility and is also available on our website. Toilet rebates are also being considered as an added conservation tool in the program. Research Partnerships with Town departments, organizations and professionals in the water management industry continue to be vital in assessing the latest practical technologies and methodologies in water resource management. Information is then passed on to our customers through a variety of venues such as education programs, audits, and consultations. Policy In an effort to provide Oro Valley customers more options to expand their conservation efforts, changes were made to the Water Code in 2007 to encourage the use of graywater and _22_ rainwater as alternative water sources for landscape irrigation. The Code changes also included guidelines and restrictions for the installation and use of ra water and rainwater. In p h addition, the Utility worked with the Building SafetyDepartment to facilitate changes g s to the Building Code to mandate the installation of under the counter electrical outlets fo r point of service hot water recirculation pumps. Currently, staff is working to improve and update the Landscape Code b integrating clear . p y g g ear conservation measures for new development. The public is participating in the process and continues to bring valuable experience and suggestions to the meetings. Water budgets for ig g irrigation water use are being evaluated for new multi -family, commercial and homeowner association common areas. Water budgets allow properties to monitor water use much more effectively and determine the presence of leaks much quicker. A fine or surcharge is being g considered and may be imposed when water budgets are exceeded. Water audits for new commercial development are also being considered and may become a contingency for g Y obtaining a certificate of occupancy. These audits would be performed by a certified independent contractor. Water harvesting for these properties will also be required under the new ordinance. A proposed time line for submission to council will be August 2009. Water Conservation Audit Short Term Goals The Utility continually strives to provide a high level of service. The water conservation program encompasses a wide variety of water users and therefore constant evaluation of the conservation program is important to ensure its relevance and success. The Utility is working to enhance communication efforts by improving the website and creating online surveys to y assess customer needs. In addition, the Water Ways newsletter is now published as part of the Oro Valley Vista magazine. Conservation classes will become an important venue to provide the community with educational opportunities on topics such as rainwater harvesting, g designing low water use landscapes and the use of gray water for landscape irrigation. -23- Long Term Goals The Utility continues to evaluate rebates and incentives as a potential tool in the water conservation program. Water audits, one of our most beneficial services assist man homeowners in conserving water; however, extending a more comprehensive service to homeowner associations and commercial properties will become important. Establishment of landscape water budgets for homeowner associations and commercial properties would be a valuable tool for managing water resources. Water budgets are generally based on plant requirements and plant type. The best methods and practices to calculate water budgets are being assessed by Utility Staff. �I -24- UTILITY OPERATIONS Production Facilities Division Utility personnel in the Production Facilities Division are responsible for the operation and maintenance of the wells, booster pumps and reservoirs on two potable water distribution systems and the booster pumps, metering stations and reservoir on the reclaimed water delivery system. All Production Facilities personnel are operators licensed and certified by the Arizona Department of Environmental Quality (ADEQ). The operators have the direct responsibility to operate the facilities section of the water systems according to the regulations and rules set forth by the EPA and ADEQ. The potable systems are chlorinated systems and the Production Facilities Division controls and monitors the chlorine dosage rates and residuals on a daily basis. The potable system located within the Town of Oro Valley Water Service Area (OVWSA) is a Grade IV system and currently delivers water to twenty pressure zones and a consecutive system located at La Cholla Air Park (LCAP. LCAP is considered a consecutive system because it is served off of the OVWSA through a large 6-inch meter and OVWU does not have responsibility for the operation and maintenance of the LCAP water distribution system. The Public Water System Number is AZ0410164 for OVWSA. The potable system that is not located within the Town boundaries, known as the Countryside Water Service Area (CSWSA), is a Grade III system that currently delivers water to a single pressure zone at the Countryside development. The Public Water System Number is AZ0410175 for CSWSA. The groundwater production capacity within the OVWSA is currently 13.07 million gallons per day (9,076 gpm) with a storage capacity of 7.79 million gallons. The groundwater production capacity within the CSWSA is currently 2.57 million gallons per day (1,785 gpm) with a storage capacity of 0.87 million gallons. Production Facility SCADA Operations The Utility continues to be proactive in the implementation of maintenance programs and facility upgrades. The development of an overall preventive maintenance program is in -25- progress. Facility sites are evaluated annually to determine necessary upgrades to ensure efficient operation of the facilities. A continuing effort to retrofit water level sensing equipment in each production well will help the Utility collect monthly water level data and will assist in the development of an accurate water level database and to analyze trends. Monthly monitoring of the water levels will also help the Utility identify potential problems with either the pumping unit and/or the well itself and schedule required maintenance before a well and/or pumps fail. The following are some of the major activities and accomplishments that were performed by the Production Facilities Division in 2008: ➢ Assisted with the pump replacement at wells E-2 and D-4 ➢ Assisted with the commissioning and SCADA programming of the Phase 2 Reclaimed Water project ➢ Assisted with commissioning of the new well C-9 ➢ Performed mechanical maintenance for 27 booster stations and 20 wells ➢ Assisted with eight reservoir inspections and six reservoir passive anode installations ➢ Completed the installation of security intrusion devices at all active sites ➢ Installed two water level transducers, one in Well CS-1 and one in Well C-6 ➢ Collected annual water level data at 27 wells ➢ Assisted with the Well Monitoring capital project ➢ Efficiently operated the potable and reclaimed systems with the use of SCADA ➢ Responded to approximately 200 after hours calls The Supervisory Control and Data Acquisition (SCADA) system is continuously updated, improved and programmed to streamline operational control, data trending, and alarm annunciation. The SCADA system is centralized and currently monitors and controls all potable and reclaimed system facility sites. Utility staff continuously monitors and operates all water systems via the SCADA system on a 24 hour seven day a week basis. Production facilities staff is also responsible for the installation and maintenance of security devices at the Utility's facilities as well as the security program in general. Production staff works very closely with Distribution Facilities and Water Quality personnel to proactively address any system problems. The Production Facilities staff is on -call 24-7 and utilizes a tiered level after-hours response protocol that is in accordance with the developed Emergency Response Plan. Production Staff is continually monitoring and checking the system to provide safe and reliable water service for our customers. Distribution Facilities Division Utility personnel in the Distribution Facilities Division are responsible for the operation and maintenance of 351 miles of potable water main, 12.5 miles of reclaimed water mains, approximately 1,974 fire hydrants, and 7,263 valves. The Staff conducts maintenance programs and repairs that keep the distribution system functioning properly and minimizes problems that are inherent to water distribution systems. Data bases have been established for hydrants, pressure reducing valves, air release valves and a valve exercising pro ram that g helps identify maintenance cycles and monitor equipment to provide for proactive replacement programs. All Distribution Facility personnel are operators licensed by ADEQ. The Division works closely with Customer Service and responds to complex customer work orders such as pressure related, water quality, service line breaks, hydrant repairs, system _26_ pressure regulating valves, system air relief valves and system flushing. The Division also is responsible for Bluestaking all underground water mains. The Division is responsible for maintaining 29 pressure reducing valves (PRV), 715 air relief valves (ARV) and 901 drain valve assemblies (DVA). The Division also responds to water pipeline leaks and repairs these leaks in .p a timely and cost effective manner to minimize impacts to our customers. The Division also wo rks with local fire protection agencies to flow test and repair approximately 111 fire hydrants. The following are some of the major activities and accomplishments that were performed p p rmed by the Distribution Facilities Division in 2008: ➢ Maintained, replaced and/or repaired 48 hydrants ➢ Flow tested and/or repaired 36 hydrants for fire protection ➢ Performed 116 tests and/or repairs for the maintenance and operation of the e 29 pressure reducing valves ➢ Maintained, replaced and/or repaired 200 air relief valves ➢ Maintained, replaced and/or repaired 15 drain valve assemblies ➢ Performed 4,514 blue stakes for underground pipeline and facilities locations ➢ Responded to and repaired 8 water pipeline breaks ➢ Responded to approximately 1,021 customer inquiries in the field The Division also has significant direct customer contact and responded to customers s regarding pressure or flow related problems in the field. The Division in conjunction with the Production Facilities Division provides 24-hour on -call standby respond and to waters stem p Y problems. During this past year, the Utility received numerous letters from customers who received assistance from Distribution personnel that exceeded their expectations. This is confirmation of the high level of professional performance and courteous service of Utility personnel. _27_ SECURITY AND EMERGENCY RESPONSE PLAN Production Facilities Staff is responsible for the Security Program and the installation of security devices at the Utility's facilities. The Public Health Security and Bioterrorism Preparedness and Response Act was enacted in 2002. This federal mandate required the Utility to perform a Vulnerability Assessment (VA) and develop an Emergency Response Plan (ERP) that incorporates the vulnerabilities identified by the VA. Under the ERP, first response staff and vehicles are placed in an after hours position to directly respond to any developing emergency in order to minimize a situational effect on water system integrity. Production Facilities staff will also respond to assist Distribution Facilities staff if needed. Currently, the combined first response staff from Distribution and Production can handle the initial stages of two small-scale concurrent system events or one widespread system event. Any facilities security situations directly involve the Oro Valley Police Department as a first response action. The VA for the Oro Valley Water Utility and the certification that the ERP was completed was submitted to the EPA and ADEQ in June 2004. The VA and the ERP were reviewed in 2008 and are up to date on any changes to the Utility operational or response situation and contact information and procedures. Following completion of the VA, the Utility began to implement a program that would address and correct elements identified in this document. The changes are designed to protect and "harden" the facilities against potential threats from the acts of people who wish to do harm to the residents of Oro Valley. The Utility will continue to implement elements defined in the VA as well as those that may be identified through the course of business. Utility personnel, with the assistance of a security consultant, continue to review, refine and update the security program. Under the security program a series of training classes and exercises are made available to the Utility Staff on an annual basis as per the guidelines from the Department of Homeland Security and the EPA. In April of 2008, an ERP full scale exercise was conducted for training purposes. This valuable training involved all Water Utility employees. Essential Utility personnel continue to complete the required training and certification for Incident Management courses provided by FEMA. A Business Continuity Plan (BCP) has also been developed and was reviewed and updated to facilitate the ability of the Utility to continue vital administration and business services in the event of an emergency or disaster. The hydrant lock program continues to be implemented through the new development process and all hydrants within Oro Valley systems are protected from illegal entry and use. In 2008, 111 new hydrant defenders and locks were installed. There is extensive cooperation under this program with the three fire districts serving Oro Valley Water Utility customers, the Oro Valley Police Department, and other area water providers. In 2008, internal barrier fencing was installed at nine active wells. All remaining active production facilities, which include booster stations, are on an annual schedule to enhance the perimeter barrier fencing. Intrusion detection equipment and warning signage has been installed at all active production facility sites. All new capital improvement designs incorporate the required security enhancements. _28_ Testing devices have been purchased for testing water samples under a first response scenario. This equipment is capable of giving instantaneous results on a broad spectrum of chemical constituents. A continuing program has been initiated to chemically characterize ("fingerprint") the water produced. This will help identify any anomalies during a suspected p event involving water quality. These baseline data are taken on a monthly basis. Future system enhancements are proposed to include installation of real-time water quality monitoring devices that will be tied to SCADA. This is still being researched as to the most practical and accurate methodology. The Utility is kept abreast of local, regional and national security issues via weekly situation reports provided by Water Information Sharing and Analysis Center (Water ISAC). ENGINEERING & PLANNING The Engineering &Planning Division is responsible for planning and managing the design, (� construction and inspection of all new water infrastructures for developer financed projects L and Capital Improvement Projects for the Town of Oro Valley. Additionally, it is responsible for managing and maintaining a Geographic Information System data base on all existing water system infrastructure in coordination with the Information Technology Department. New Development r The New Development Section is responsible for facilitating development by reviewing and approving Water Improvement Plans for proposed new developments and assisting with planning for future water system expansion. Water improvement plans are reviewed for compliance with Water Utility standards and are approved for construction once all requirements are met. Through this process the need for additional pipelines, booster pump stations and water storage reservoirs are identified as they relate to future developments. This Section also prepares Line Extension Agreements (LEA) for each new water improvement plan that will serve a proposed new development. When applicable, these LEAs may include protected mains. The New Development Section works closely with the Pima County Department of Environmental Quality to acquire Approval of Construction prior to placing new water facilities in service. Coordination with Planning and Zoning, Public Works and Building Safety Departments is critical to this water improvement plan process to ensure quality construction and that water facilities are constructed in accordance with approved standards. In 2008, 32 Water Improvement Plans were reviewed and approved to be constructed as designed. In addition, 28 plans were constructed, inspected, approved as -built, and placed into operation. This includes approximately 13 additional miles of pipeline which was added to the water distribution system in 2008 This work included a significant amount of work to inspect and approve the construction of water facilities at the Oro Valley Marketplace. CAPITAL IMPROVEMENTS Potable Water System: This past year the Engineering and Planning Division completed construction for a production well located south of Pusch View Lane. The Town installed approximately 16,000 feet of new water main in the Highlands subdivision and installed 2,500 feet of transmission main on Innovation Park Drive. Staff also completed engineering design for a new booster station and design for a 3.0 million gallon reservoir. The projects are identified in the Potable Water System Master Plan adopted by Mayor and Council in August of 2006. They are designed to improve existing facilities and help the Utility keep pace with increased demands due to growth within the Town and water service areas. -30- E1 Conquistador "C-D" Zone Booster Pump: The existing facility has been in operation since the early 1980's and a redesign was required to improve system capacity and efficiency. The design is complete and will replace the older facility with a new pump station sized to efficiently meet water demands. Construction is expected to start in FY 2009-2010. Pusch View Lane Well C-9 Construction: This new well is located just south of Pusch View Lane and just east of CDO Wash. The new well is equipped with a 150 HP motor enclosed with a sound barrier. The facility includes a disinfection system and a 10 foot security wall. In addition, an access bridge to this well was designed and constructed. All equipping and construction was completed by December of 2008. The new well will be capable of pumping 700 gallons per minute of water into our water distribution system. This well is expected to be in operation by May of 2009. Well C-9 Sound Barrier Highlands Main Replacement - Construction: This project is located in the Highlands Mobile Home Park on Lambert Lane. Construction is nearing completion and will be complete in April of 2009. This project includes the installation of approximately 16,000 linear feet of 8-inch and 6-inch ductile -iron mains within the existing private right-of-way. This new pipe will replace an older plastic pipeline smaller in diameter. Also included is the relocation and replacement of 286 existing water meters from the back side to front curb of the lot. Fire hydrants will be installed every 500 feet to provide fire protection. The customers and residents in this area have been very cooperative and appreciative of these water system improvements. Water Utility Staff appreciates their cooperation and support for this project. North La Canada Reservoir: Design of this water storage reservoir is complete. The site is located in the vicinity of Moore Road and King Air Drive. The design is for a 3.0 million -31- gallon (MG) concrete in -ground reservoir and includes provisions for a future booster pump station which will provide service to areas west and north of the site. Construction is planned to start in FY 2009-2010. Another feature includes the capability to construct another reservoir in the future at this same site for storing future potable CAP water. Construction is planned to start in FY 2009-2410. Innovation Park Drive - 16-Inch Water Main Replacement: Design is complete to install 2,500 feet of ductile iron pipe in the vicinity of Innovation and Tangerine Road. The existing pipe is an asbestos -concrete main that was not designed to operate as a distribution main. Replacement of this main will improve distribution system delivery and reliability. Construction is scheduled to begin in April of 2009. Construction Inspection All New Development and Capital Improvement projects are inspected during construction for conformance with the approved design as well as material and installation standards. The Water Utility has two full time Construction Inspectors and utilizes the services of a Consultant Inspector to assist when specialized inspections are required. This year, inspections were performed on 32 new development projects for a total of approximately 13 miles of potable water system pipeline, 1 well equipping project and 2 reclaimed water system projects which included 1.5 miles of reclaimed water system pipeline, 1 booster pump station, 2 metering stations and the lining of 2 golf course ponds. Future Projects FY 2009-2010 Potable Water Capital Improvement projects planned for FY 09-10 include the following: • Drill and equip replacement well on Tangelo Drive • Drill and begin construction for a new well at Steam Pump Ranch • Design and construct water improvements on Lambert Lane • Begin reconstruction of the El Conquistador booster station • Replace 16-inch water —on Innovation Park Drive • Begin construction for the 3.0 MG La Canada reservoir Construction costs have decreased in the past 12 months due to the current economic conditions facing the country. We expect construction costs to remain lower through the next fiscal year. CAPITAL IMPROVEMENTS Reclaimed Water System Phase 2: In October 2005, the Town of Oro Valley completed Phase 1 of the Reclaimed Water System and began delivering reclaimed water to the three golf courses north of Tangerine Road. To further protect and preserve our groundwater supply, in 2008 the Utility expanded the Reclaimed Water System. 1 -32- I Phase 2 of the Reclaimed Water System was completed in October of 2008 and began delivering reclaimed water for irrigation to Painted Sky Elementary School athletic fields located on Woodburne Avenue south of Moore Road and to the two El Conquistador golf courses located on La Canada Drive south of Tangerine Road —Phase 2 can deliver an additional 326 million gallons (approximately 1,000 acre-feet) of reclaimed water per year. Both phases of the Reclaimed Water System will save 815 million gallons (approximately 2,500 acre-feet) of potable groundwater annually. This amount represents approximately 25% of the total water delivered to our residential, commercial, irrigation and turf customers annually. Oro Valley Water Utility is reusing its wastewater effluent as the source of supply for reclaimed water. Under an Intergovernmental Agreement with ' g h the City of Tucson, the Town s wastewater effluent is treated by Tucson Water to a Class A Reclaim ed Water Standard for irrigation purposes. Oro Valley paid for the construction of two booster pu mp mp stations that are owned and operated by Tucson Water to deliver our reclaimed wate r. Our reclaimed water is pumped into Oro Valley's 24-inch ductile iron which deli ' pipeline, vers our reclaimed water from the Thornydale Pump Station to OVWU's Reclaimed W • Water Reservoir for distribution. Thorn dale Reclaimed Booster Pump Station Reclaimed water is pumped from Tucson Water's Thorn dale Reclaimed ' Y armed Reservoir Into the OVWU Reclaimed Water System through this booster um station pump . -33- Painted Skv Elementary School Irrigation Booster Pump Station Reclaimed water is provided to Painted Sky Elementary School through this booster pump station for irrigation of their athletic and playing fields. Filling Hilton El Conquistador Golf Course North Pond The El Conquistador Hilton Golf Course pond was one of the ponds lined as art of . p p Phase 2 Reclaimed Water System and was being filled in this picture. This and was line p p d as a requirement to store reclaimed water. -34- 1 Reclaimed Water Pipeline Construction alonLy La Canada J A low interest loan was granted by the Arizona Water Infrastructure Finance Authority to fund Phase 2. This project came in on -time and 19% under budget. Together with the low interest loan, this was a significant savings to the Town and Water Utility customers. Five Year Capital Improvement Program: The following table summarizes the Utility's proposed five year Capital Improvement Program (CIP). A detailed schedule of the capital improvements program may be found in Appendix D. CIP FY 09/10 FY 10/11 FY 11/12 FY 12/13 FY 13/14 $ 1 280 000 ' $ 7 845 000 $ 0 5 Year Total Existing System $ 611905000 $ 4,9205000 $ 2936000 $ 4505000 $ 15,200,000 Expansion Related $ I,920,000 $ 250,000 $ 0 $ 152405000 $ 1152555000 CAP Planning $ 35000,000 $ 1 500 000 ' $ 0 $ 254075000 $ 417675000 $ 0 $ 455005000 CAP Delivery $ 0 $ $ 2450815500 $ 2450815500 500 > $ 50957000 $ 815525,000 Total $115110,000 $ 65670,000 $ 25,771,500 $ 3320 6,500 The capital projects for existing system improvements FY 09-10 and FY 10-11 are planned to l be financed through Water Infrastructure Finance Authority (WIFA) low interest loans. It is proposed that the remaining projects in future years will be financed through proceeds from cash reserves and future debt issuance. All expansion related improvements will be financed l with remaining Series 2003 bond proceeds and with cash generated from the Potable Water System Development Impact Fees. -35- FINANCIAL HIGHLIGHTS The Utility's revenue consists of potable and reclaimed water sales groundwater , g preservation fees, miscellaneous service fees and charges, water development impact fees p p and interest income. The Water Utility has three funds: ➢ The Enterprise Fund provides funding for the Water Utility administration and operations as well as existing system improvements. The sources of revenue for this fund are water sales and service charges. ➢ The Potable Water System Development Impact Fee Fund provides funding for expansion related projects for new growth. The source of revenues for this fund is from water development (impact) fees paid by new development at the time a meter is purchased. These funds are collected so new growth pays the costs for system expansion due to new development. ➢ The Alternative Water Resources Development Impact Fee Fund provides funding for the development of renewable sources of water supply, namely reclaimed water and CAP water, and related infrastructure. The sources of revenues for this fund are impact fees and Groundwater Preservation Fees. Water development (impact) fees are paid by new development for that portion of renewable water supply and infrastructure attributed to new growth. Groundwater Preservation Fees are paid by existing customers for their portion of renewable water supply and related infrastructure. The following table contains the actual revenue received for FY 2007-08 for all funds within the Utility: Revenue Source Amount Received Potable Water Sales: Residential $ 7,482,420 Commercial $ 65 8,3 07 Irrigation $ 1,117,281 Turf $ 67905 Construction $ 684,441 Reclaimed Water Sales: Turf $ 1,004,555 Construction $ L630 Irrigation $ 792 Misc. Service Fees & Charges $ 620,170 Total Enterprise Fund $1292499291 Groundwater Preservation Fees $ 1,092,778 Alternative Water Resources Development Impact Fees $ 512,543 Potable Water System Development Impact Fees $ 1,952,792 Interest Income $ 864,260 Total for FY 2007-08 $1696719664 -36- The Utility used cash reserves to finance the existingsystem ' y capital projects in FY 2007-08 and also in FY 2008-09. It is anticipated that in FY 2009-10 c ' ash reserves well also be used to finance a portion of the existing system an improvements ' p d obtain a low Interest loan through WIFA for the majority of the improvements. g J y p ents. The budgeted expenditures are combined for all funds and are compared to the actual expenditures for FY 2007-0 • p 8 in the following table. Budget Actual Spent Difference Percentage Expenditures- FY 2007-08 FY 2007-08 Under (Over) Under (Over) Personnel $ 2,365,664 $ 2,324,922 $ 40 742 1.7/0 0 O&M $ 3,530,340 $ 3,485,470 $ 44 870 ' 0 1.3 /o Capital $12, 8 82,140 $ 6 219 942 , $ 6,622,198 o 51.7 /o Totals $1897789144 $1290309334 $ 6, 747 810 35.9/o 0 The Utility's capital expenditures were under budget as a result of delays i ' g y n construction of potable water projects. If approved by the Town Council, in 2009 the Oro Valle Water Utility will y y 1 seek low Interest loans from the Water Infrastructure Financing Authority of Arizona (WIF A) for shovel ready" existing system improvements and for the design of the Northwest Water Providers g roviders CAP Treatment and Delivery System. The Utility's projects were laced on WIFA's Project j ect Priority List and could receive loans with interest rates at 85% of WIFA's rate. With the establishment of the federal government's American Recover and Reinvestment Act, t, there is a potential that our loans could involve no interest and/or P forgiven principal. p The following table is a summary of the outstandingdebt and debt service payments (principal and interest) for all funds within the Utility: Outstanding Debt Debt Service Payments Fund Bond Series As of 6/30/08 FY 2007-08 Enterprise 1999 $ 2,050,000 $ 291 945 Enterprise 2001 $ 1 570 134 $ 264,690 Enterprise 2003 $1853735750 $ 15658501 Enterprise 2005 $ 1,922,250 150 $ ,723 . Enterprise 2007 $1654205820 $ 524 549 AWRDIF 2003 $115480,000 $ 784 230 AWRDIF (WIFA) 2008 $ 4,125,208 $ 0 AWRDIF (CAP) N/A $ 1,8405634 $ 521 494 PWSDIF 2003 $ 7,77000 $ 635 358 Totals $6595529796 $ 4 831 490 Utility Staff, along with the Town's Finance Director, are investigating the possibility of paying off the Series 1999 Bonds. By reducing the outstandingdebt, it will be easier t e� o maintain the required 1.30 debt service coverage requirement which may a result in smaller er rate increases. -37- WATER RATES AND DEVELOPMENT FEES The functions and duties of the Commission include reviewing and developing recommendations for water revenue requirements, water rates and fee structures. The Commission annually evaluates staff recommendations based on a water rates analysis to assure the recommendations meet Town policies and bond covenants. The Utility bases its financial analysis on the American Water Works Association (AWWA) Cash Needs Approach. In 2008, the Water Utility Commission recommended a Preferred Financial Scenario to Council with a proposed rate increase. Town Council approved a water rate increase for FY 2008-09 on November 5, 2008 by Resolution (R) 08-77. The approved water rates included an increase to the water usage rate and an increase in the Groundwater Preservation Fee. The increases went into effect on December 6, 2008. The average residential customer experienced an increase of 8.1 % or approximately $2.99 per month. This included an increase in the Groundwater Preservation Fees (GPF) of $0.15 from $0.40 to $0.55 000 , per 1gallons p for potable water customers. For reclaimed water, the GPF increase was $0.05 from $0.25 to $0.30 per 1,000 gallons. The new water rates became effective on December 6 2008. All current water rates fees and charges are available on the Town website at www.orovallevaz.p,ov/WaterUtilitv-/Bl*lling & Customer Services/Water Rates Fees & Chg es.htm. As part of updating impact fees for the Town, Council requested Water Utility Staff to review the current Alternative Water Resources Development Impact Fees. The Water Utility Commission reviewed and Staff prepared and presented an analysis to Council at a Study Session and Council Meeting. On September 3, 2008, the Town Council approved increases in the Alternative Water Resources Development Impact Fees by Ordinance (0) 08-14. These fees went into effect on December 2, 2008. A detailed report for these fees is available on the Water Utility website. The current fees are also on the Water Utility website and the Town website in the Town Code — Chapter 15 Water Code. Each year, on or before September 28th an accounting of the water development impact fees is presented in a report required by Arizona Statute. A Water Rates Analysis Report will be prepared during 2009 that contains detailed information on the three funds that comprise the Oro Valley Water Utility. Each fund is individually analyzed with regard to revenue and revenue requirements. A Preferred Financial Scenario will be developed that includes five year projections for each fund. This will allow the Utility to evaluate the impact of future costs and the revenue sources that will be required to meet those costs. Based on the Water Rates Analysis Report and the Preferred Financial Scenario, the Commission makes recommendations to the Town Council on Water Utility rates and other service fees and charges. It is anticipated that the Water Rates Analysis Report y p will be provided to the Water Utility Commission in September of 2009. It will then be presented to Town Council in October of 2009 as part of the Town's Notice of Intent to Increase Water Rates as required by Arizona Statutes. If this Notice of Intent is approved, public pp ' a p c hearing date will be set to review and consider the recommended rate increases and hear comments from our citizens and customers. F -38- Rp EYRQ° TOWN OF ORO VALLEY WATER UTILITY COMMISSION tk �Eo 2009 ANNUAL REPORT APPENDIX A UTILITY STATISTICS YEAR Customer Base Water Deliveries in Gallons Reclaimed Water Deliveries in Gallons Bluestakes Customer Contacts Customer Service Field Operations 2006 2007 17,652 18, 035 2, 754, 933, 000 2791 092, 000 487, 702, 000 500, 894, 000 51523 41796 41,142 41,507 17724 2, 037 2008 L M330 [ 2, 569, 729, 000 57437697000 l 4,514 L 43,016 (� L 2,684 Water Conservation -Audits 206 205 145 Water Quality Samples 943 5 998 1,421 Meter Reads 209,053 210 352 212,162 Billing Collection Rate 99.90% 9990% 99.90 /o A-1 3100010001000 2100010001000 1150010001000 1100010001000 50010001000 Pat -a. le aterDeliveries in Gallons .Zuub 2007 2008 1 Bluestakes ,000 796 ' 514 51000 4,000 31000 1."- "�`G •,� E9.+•ate � r n ' 000 A A ' 1'f�111. V 0•K'{rt,. 11000 �•�{' �� _ ri�y 11t; xk '4` �'-is-�,4 y�.,.J�.i�•� ; �� ;p. 1 .y,-&�.-'. ,�.•, i [' aM i,il f �� ~ { Z ♦' .+Rk � �'r Y��l ♦_ Mi' q IP,�r lys {t .$.I'�'•'� ' Y>� a'' � i� . �, ..,`r�C ct�fi a`�"7 rr-, ��a� fhV�. 'P1 �7�{,. �' tiyy��r :�,v,1,Ci-F#!3;'af. Y.�"'�13� . (, .�-�i?y '.. �:'Ay,J� . +r7', r- rk, tF'F1'T�;C{:�r;" a f��'��M41�, ��ri ;- ''�`ES K✓YS�.�. ... �i.'`blt 'iN :4:.�:-FL. X.k,- • � �' �� r`Yf•�,!',M�S�'.i;3'_`3�WsC" 41.1 t+g 1`.Y r .,��K r�+':r7.,Fz^ i ��} °r2 9 T3.:'�� y'��r�+f 4* 1� v PAS s��}`Rw ��i�'�}-�y�# k r � ? � to �` �L� •E' •., _ y.7 A-2 r C A-3 Billing Collection Fate N �; ft ra. . .m' , jj 00% f f 40.00%- 0.00% O.OW.V A-4 11095701 Accounts By user Type As of December 31. 2408 '17371 BOO IV ■ Construction- 1% ❑ Commercial - 2% ■ Residential - 95% Irrigation -.2% Reclaimed - 0% ■Turf - 0% Gallons Sold By User Type January - December 2008 259�3000 574769000 235936000 8816000 -153816000 Revenue By User Type January - December 2408 7498623 2504 F5r1571 ;87$36 ■ Construction - 3% ❑ Commercial - 5% ■ Residential - 58% 0 Irrigation - 8% Reclaimed - 18% ®Turf - 8% ■ Construction - 5% ❑ Commercial - 6% ■ Residential - 65% ®Irrigation - 9% • Reclaimed - 11% ■ Turf - 4 % Calendar Year 2008 Statistics User Type Accounts Construction - 1% 256 Commercial - 2% 301 Residential - 95% 17,371 Irrigation - 2% 388 Reclaimed - 0% 10 Turf - 0% 4 User Type Gallons Sold Construction - 3% 787816,000 Commercial - 5% 1537816, 000 Residential - 58% 17835,004,000 Irrigation - 8% 2593443,000 Reclaimed - 18% 574,7697000 Turf - 8% 235, 936, 000 User Type Construction - 5% Commercial - 6% Residential - 65% Irrigation - 9% Reclaimed - 11 % Turf - 4% Revenue $ 571, 571.00 $ 687, 836.00 $ 7,498,623.00 $ 1, 095, 701.00 $ 1, 228, 578.00 $ 522,504.00 A-5 JPEARTOWN OF ORO VALLEY WATER UTILITY COMMISSION �,NoEo 2009 ANNUAL REPORT APPENDIX B WATER QUALITY E CO cn M v d �' a)M a I M O CL = OW z O v U O U Q LO o O L6 � M M � O o o ca •a L v V .- di J Q. � c •N a = a•mCI)l �T- U °' o Ua) T- a > a� �_ Q o _ C (L O CD = O m CA L ,0 `+� = O 0o N 1 L G) 6 .� 0 • O `- I W _ —1� O O m N TI- E E S) _ o c a C a� O E N O m C: cn -> > E o cn cn o 0. 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