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Home My WebLink AboutAnnual Reports - 4/1/2010ja OUNDED Aol 7�PRIL 2010 14 7�f ftSVAWWWA _LV_ _AWMA MA W A/ X/ /\ . ......... . . ... Ar q TOWN OF ORO VALLEY WATER UTILITY COMMISSION ANNUAL REPORT 2010 TABLE OF CONTENTS Page About the Water Utility Commission...................................................................... I ExecutiveSummary.................................................................................................4 Introduction.............................................................................................................. 7 Customer Service..................................................................................................... 8 MetersDivision......................................................................................................10 WaterQuality.........................................................................................................1 l CurrentWater Supply............................................................................................15 Water Resource Planning and Management..........................................................19 Water Conservation Program.................................................................................22 UtilityOperations...................................................................................................27 Security and Emergency Response Plan................................................................31 Engineering and Planning......................................................................................33 FinancialHighlights............................................................................................... 37 Water Rates and Development Fees......................................................................3 9 Appendices A. Utility Statistics B. Water Quality C. Static Water Level Measurements D. Five -Year Capital Improvement Program E. List of Acronyms A TOWN OF ORO VALLEY WATER UTILITY COMMISSION ANNUAL REPORT 2010 ORO VALLEY TOWN COUNCIL Paul H. Loomis, Mayor Bill Garner, Vice Mayor Kenneth "KC" Carter, Councilmember Barry Gillaspie, Councilmember Mary Snider, Councilmember Patricia Spoerl, Councilmember ORO VALLEY WATER UTILITY COMMISSION Dave Powell, Chair Rick Davis, Vice Chair John Hoffmann, Commissioner Robert Milkey, Commissioner Rick Reynolds, Commissioner Elizabeth Shapiro, Commissioner Winston Tustison, Commissioner TOWN STAFF Jerene Watson, Interim 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 George Kendrick Carolyn Schneider Robert Jacklitch Mary C. Kobida Christian Swanson Jeff Kane Mary Miller Irene Swanson ABOUT THE WATER UTILITY COMMISSION The Town of Oro Valley Water Utility Commission is a seven member commission 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 Commission serves in an advisory capacity to Council making recommendations on water polices, water rates and fees, renewable water supplies and water conservation. In 2009, the Commission met 11 times to conduct business. All meeting agendas were noticed in accordance with statutory requirements through the Town Clerk's Office and on the Town website. The meetings were broadcast over the internet through the Granicus System. Meeting minutes were taken and then published after final approval by the Commission. In addition to the regular Commission meetings, there were several meetings conducted by the three Subcommittees. The three Subcommittees include the Finance Subcommittee, the Water Conservation Subcommittee and the Renewable Water Resources Subcommittee. Some specific actions by the Water Utility Commission and recommendations to Council for 2009 include the following: ➢ Election of Officers ➢ Review of Water Utility Commission Agendas ➢ Recommendation for acceptance of the Annual Report ➢ Recommendation for purchase of Groundwater Extinguishment Credits ➢ Recommendation for loan with Arizona Water Infrastructure Finance Authority ➢ Recommendation for redemption of the 1999 Bonds ➢ Recommendation for the adoption of the Gray Water Ordinance ➢ Recommendation for the adoption of the Landscape Ordinance ➢ Recommendation on Water Rates and Fees ➢ Review and Approval of Meeting Minutes ➢ Completed annual training requirements and attended various field tours There are numerous issues that will be addressed as we move forward in 2010. Some of the major issues include: ➢ Review of defeasance of the 2001 Bonds ➢ Review of Cash Reserves policy ➢ Development of Central Arizona Project water ➢ Review of studies and Intergovernmental Agreements for the interim delivery of CAP Water through the Tucson Water System ➢ Review of water rates and developing a Preferred Financial Scenario The Water Utility Commission welcomes our customers, citizens and public to attend its meetings. -1- WATER UTILITY COMMISSION 2010 Dave Powell, Chair At -Large Renewable Water Subcommittee Member John Hoffmann, Commissioner Residential (Town) Renewable Water Subcommittee Chair Richard Davis, Vice Chair At -Large Conservation Subcommittee Chair Robert Milkey, Commissioner At -Large Conservation Subcommittee Member -2- Y# Rick Reynolds, Commissioner Commercial/Turf Representative Renewable Water Subcommittee Elizabeth Shapiro, Commissioner Residential (Countryside) Finance Subcommittee Member Winston Tustison, Commissioner Residential (Town) Finance Subcommittee Chair EXECUTIVE SUMMARY TOWN OF ORO VALLEY WATER UTILITY COMMISSION ANNUAL REPORT APRIL 2010 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 fourteenth 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 (FY) ending June 30, 2009 and calendar year (CY) 2009. 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. More detailed information may be found in specific sections of this report and the appendices. CUSTOMER SERVICE The Town of Oro Valley Water Utility (Water Utility or Utility) has 18,401 customer connections serving a population of approximately 48,656. This includes both the customers within the Town boundaries and the Countryside area. During CY 2009, 71 new meter connections were installed and approximately 2.51 billion gallons (7,693 acre-feet) of potable water was delivered to our customers. In addition, approximately 642 million gallons (1969 acre-feet) of reclaimed water was delivered for golf course irrigation. WATER QUALITY For the eighth consecutive year, the Utility is proud to report that it did not experience any water quality violations for Total Coliform bacteria. The number of tests performed in CY 2009 was 4,000 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 operation and monitoring of the water system is critical to providing a safe and reliable water supply for our customers. CURRENT WATER SUPPLY 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 (CAP) water that is used indirectly through groundwater storage credits. -4- Although there have been recent rains, continuation of a long-term drought persists. Both the drought and the continued pumping of groundwater have caused groundwater levels to decline, which in turn reduced the production capacity of the existing system. Operation of the Reclaimed Water System has slowed the groundwater decline to an extent, thus conserving, preserving and protecting our aquifer and our groundwater supply. The use of reclaimed water is a significant accomplishment, but it is not the only renewable source of supply available to assure a sustained reliable water supply. The Utility will continue its water resource planning efforts to meet existing and future demands through the development of its CAP water allocation. Plans for the development and direct use of our CAP water allocation are being developed cooperatively by the Northwest Water Providers which includes Marana, Metro Water, Flowing Wells, and Oro Valley. In addition, there have been recent discussions regarding the delivery of our CAP water through the Tucson Water system to Oro Valley on an interim basis. In CY 2009 approximately 8595 acre-feet of groundwater was pumped from the aquifer. This is approximately 30 acre-feet less than CY 2008. Approximately 1969 acre-feet of reclaimed water was delivered for golf course irrigation. Delivering reclaimed water significantly reduces our demands on the aquifer and groundwater supplies. Well water levels declined an average of 3.99 feet in the Oro Valley Water Service Area and declined 1.89 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 and through permits to store in Central Arizona Water Conservation District (CAWCD) recharge projects. This allows the Utility to obtain long-term groundwater storage credits within the Tucson Active Management Area. Participation in the Lower Santa Cruz River Managed In -Channel Recharge Project also provides the Utility with long term storage credits from unused wastewater effluent. In addition, this last year the Water Utility purchased groundwater extinguishment credits which increased the balance in its Groundwater Allowance Account. The use of the groundwater extinguishment credits and long-term storage credits reduces our monetary payments to the Central Arizona Groundwater Replenishment District (CAGRD) for groundwater replenishment requirements. The Water Utility continues to plan for the direct delivery and treatment of its CAP water. RECLAIMED WATER SYSTEM The Town of Oro Valley delivers reclaimed water for irrigation to five existing golf courses and to Painted Sky Elementary School athletic fields. In 2008 these five golf courses and Painted Sky Elementary School used approximately 642 million gallons or 1,969 acre-feet of reclaimed water for irrigation purposes. This resulted in a reduction of approximately 20% in the amount of groundwater pumped from the aquifer. 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 primary focus of the conservation program continued to be on residential water use audits. In 2009, 179 audits were performed. Since the program's inception in 2003, participating customers received over 1,200 free water audits, which saved our customers both water and money. Irbil The Utility encourages water conservation by educating our customers. Water use audits, which save our customers money and reduce the demands on our system, are a key component of the Water Conservation Program. Stage 1-Drought Conditions were in place for 2009 and continue to remain in place. This condition calls for voluntary restrictions under the Town's Drought Preparedness Plan. Oro Valley Water Utility also participated regionally with other water providers through membership in the Water Conservation Alliance of Southern Arizona (Water CASA). WATER RATES AND IMPACT FEES The functions and duties of the Water Utility Commission and Staff include reviewing and developing recommendations for water revenue requirements, water rates and fee structures. In 2009, recommendations regarding water rates, fees and charges were provided in a separate report. The Water Rates Analysis Report was submitted to the Town Council and a water rate increase was approved on November 18, 2009 by Resolution (R) 09-74. 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 19, 2009. CONCLUSION The Oro Valley Water Utility Commission is proud to serve the Mayor and Council of the Town of Oro Valley and its residents and customers. We are pleased to present this Annual 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 for their consideration, direction and guidance. Any questions regarding this report should be directed to Philip Saletta, Director, Oro Valley Water Utility at 229-5010. Additional information for the Oro Valley Water Utility can also be found on the Town website at www.orovalleyaz.g_o_v/WaterUtility in INTRODUCTION The Oro Valley Water Utility has completed its fourteenth year of operation. During this time, the Utility has achieved a number of significant goals. The Utility installed 71 new water connections in CY 2009, a 0.3 9% growth rate, for a total of 18,401 water connections. We continue to operate under the Intergovernmental Agreement with Tucson Water regarding the delivery of reclaimed water to the Thornydale Pump Station. 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 1.1 miles of potable water mains. The Utility continues to be fiscally sound. Water development impact fees, which fund expansion of the water delivery system, have been increased to ensure the utility can keep pace with growth and development. In addition, the Utility has taken steps to keep pace with rising costs for operations and maintenance. A water rates analysis was performed and a water rate increase was approved in 2009. This increase included an increase in the Groundwater Preservation Fee which will pay for renewable water supplies that will reduce existing demands on our aquifer. The Utility also received another low interest loan from the Arizona Water Infrastructure Authority for Phase 1 Existing System Improvements for the potable water system. The following are some of the Utility's resources and assets as of December 31, 2009: Resources: Employees: Groundwater Supply (Assured Water Supply): Reclaimed Water: Effluent Water: CAP Water: Long Term Storage Credits: Groundwater Allowance Account: 36.5 13,384 Acre-feet per year 2,500 Acre-feet per year 1,500 Acre-feet per year M305 Acre-feet per year 175207 Acre-feet M428 Acre-feet Assets: Water Service Areas: Oro Valley Water Service Area and Countryside Water Service Area 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: 18 8,700,000 gallons 1,500,000 gallons 354.8 miles 27 1 20 10,830 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. -7- CUSTOMER SERVICE Customer Service personnel include Customer Service Representatives (CSRs) and Utility Operators. This staff is responsible for meter reading, billing and collection for 18,401 customer connections serving approximately 48,656 people. The Utility has grown over the past year and in 2009 an additional 71 meters were installed for a growth rate of 0.39%. Over 4,988 customer accounts were changed in 2009, primarily due to opening and closing of accounts for new move -ins and winter residents. The Utility delivered 2.5 billion gallons (7,693 AF) of potable water to our customers in 2009 and over 642 million gallons (1,969 AF) of reclaimed water for irrigation to five golf courses. This totals 3.15 billion gallons (9,662 AF) of water delivered and billed to our customers. The Customer Service Division mailed and processed 230,412 bills and delinquent notices to our customers during calendar year 2009. The Customer Service Division responds to customer concerns that arise from the operation and management of the water system and in 2009 responded to 3 7,43 0 customer contacts and inquires, averaging 152 per day. . . .......... •�� ,:..+..at.:;:et�ci - ...�.._ e..•�_. a Awml.. . .ur Customer Service Customer contacts can range from handling a payment to responding to questions or problems 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. CSRs are generally the first and sometimes the only contact our customers may have with the Utility. Their training and skills are utilized on a daily basis while addressing 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. -g- 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 (ADWR). 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 2009 Report is reviewed internally and then submitted to the ADWR by March 31 st of 2010. 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. The Utility continually updates customer account information on the Water on the Web (WOW) site. This includes current billing and payment information as well as a two year history of water usage. The Customer Service Division expanded this site in 2009. Customers now have the ability to pay their water bill with credit cards and view their current water bill online. This new option helps to facilitate payment of water bills. In addition, to enhance customer service and to assist in decreasing costs, the Utility has gone "green" by adding an e-bill or paperless option. This feature sends customers electronic notification that their current water bill is ready to view on the Water on the Web site. Utility customers may request e-billing online. The Utility currently offers an automatic payment program through 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 4,550 customers are currently enrolled in this program. For those customers who pay their water bills online through their bank, the Utility implemented electronic or "paperless" bank to bank transfer of payment funds. In addition, the Utility established a toll free telephone number that accepts customer credit card payments through an Interactive Voice Response System (IVR). The Utility accepted 5,440 credit card payments in 2009. 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 2009 may be found in Appendix A. in METERS DIVISION All personnel in the Meters Division are licensed operators. During 2009 they conducted 214,530 meter readings and responded to 3,362 customer requests in the field. These include checking meter accuracy, meter replacement, water pressure and leaks. Staff works closely with the builders and contractors of Oro Valley to ensure that water meters are installed on a timely basis. Since the implementation of a Meter Replacement Program (MRP) in July of 2008, the meters division has replaced over 800 water meters varying in sizes from 5/8-inch to 6-inch. This is an average of 44 meters per month. To determine the increased water usage being recorded and billed, the calculations include a comparison of the 3 month period prior to meter replacement and the 3 month period immediately following meter replacement. In order to fully implement and maximize the benefit of the MRP, all data in the existing customer base must 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 schedule work orders to check meters for accuracy and replace if necessary. The MRP will provide for more accurate measurements of water usage and also assure that the amount billed is accurate. In addition, meter replacement is one of the Best Management Practices approved by the ADWR to meet water conservation requirements. The Meters Division also implemented a Meter Testing Program (MTP) in 2009. The MTP includes testing all water meters 3-inches and larger on a quarterly basis. It is important to be vigilant on larger meters to minimize the loss of revenue due to under reporting of significant flows through larger meters. Additionally, we are now testing commercial meters on an annual basis and when necessary replacing them with a newer technology meter that allows testing to be performed without interruption of water service. -10- 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 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 also 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. The Utility's State certified water operators are legally responsible for the health and safety of our customers. -11- 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 2009 the Utility received 4,000 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 on or before June 30th of each year. 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 anon -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 water for 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. -12- Other contaminants that may be 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 system for possible unwanted bacteria. During 2009, the Utility collected 696 samples for analysis of Total Coliform bacteria, of which none resulted positive for bacteria. 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 and rocks 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. 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. Compliance with the new Groundwater Rule began on December 1 st of 2009, and 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 arid 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. Ongoing support and resources will be needed to ensure regulatory compliance and to provide a safe and reliable water supply to our customers. -13- BACKFLOW PREVENTION Backflow prevention is an important component of water quality. The Town of Oro Valley implemented the Backflow Prevention Program in 1998 in response to requirements set forth in the Arizona State Drinking Water Regulations. The Backflow Prevention Section administers these requirements in accordance with the Town of Oro Valley Water Code Section 15-23, the Arizona Department of Environmental Quality Administrative Code, Section R18-4-B 115, the International Plumbing Code and the guidelines of the University of Southern California Foundation for Cross Connection Control and Hydraulic Research. The Backflow Prevention Program is designed to protect the water system from high risk service connections which include, but are not limited to, commercial, fire and irrigation. By state statute, single family residences are exempt unless a known hazard exists on the premises. The program works to keep the water supply safe from contaminants that could be introduced into the distribution system through backflow, backsiphonage or backpressure from our customers plumbing systems or internal processes. Backflow Testing The backflow prevention department oversees 1,193 backflow prevention assemblies. We are required to notify each customer on an annual basis to have each active assembly tested. We send out an initial notification letter, a second and final letter and notify customers by phone when the second letter is sent. Backflow prevention assemblies must also be tested if they are replaced, relocated or repaired. Completed test forms are recorded in our database and the hard copies are kept by the Backflow Prevention Section for 3 years. We resurvey all assemblies on a 3 year cycle. There are 186 assemblies owned by the Town that are maintained, tested and inspected by the Water Utility. -14- 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 (DAWS) from ADWR. Under our DAWS for each calendar year our groundwater pumping cannot exceed this amount. In 2009, Oro Valley pumped 8,595 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). The Town has a Member Service Area Agreement with CAGRD that was approved by Resolution (R) 97-06. Each year under this agreement, 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 equal the total groundwater produced from our wells less the amount pumped from our permitted recovery wells. In the short term future, using our recovery wells 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 CAWCD recharge facilities which will also aid in decreasing our monetary payments to CAGRD. The Town holds permits to store in these recharge facilities. Although membership in the CAGRD does meet the requirements for our Assured Water Supply Designation, 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 prof ects 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 can deliver at a peak flow is 8,976 gallons per minute (gpm) in the OVWSA and 1,854 gpm in the CSWSA. This is equal to 12.93 million gallons per day (MGD) for the OVWSA and 2.67 MGD for the CSWSA. For the average annual day in 2009, our potable water customers used 6.95 million gallons in the OVWSA and 0.73 million gallons in the CSWSA. The maximum daily usage which occurred on August 4, 2009, was 9.41 MGD for the OVWSA and 0.98 MGD for the CSWSA. Groundwater studies indicate that the Oro Valley aquifer has a sustainable groundwater production rate of approximately 5,500 acre-feet per year. In 2009, well production was 8,595 acre-feet of groundwater from our aquifer. This resulted in pumping our aquifer 3,095 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. -15- For wells in the OVWSA, the average annual groundwater level decline for the last 5 years is 3.47 feet and the groundwater decline for calendar year 2009 is 3.99 feet. For wells in the CSWSA, the average annual groundwater level decline for the last 5 years is 0.66 feet and the groundwater decline for calendar year 2009 is 1.89 feet. For all wells, water level changes in CY 2009 ranged from a decline of 14.0 feet to a rise of 8.6 feet. Detailed information on the individual wells and their associated water levels may be found in Appendix C. Water level declines combined with taking wells temporarily out of service for maintenance and repairs can result in a decrease in total production capacity. In 2009, OVWU operated 20 wells as compared to 19 in 2008. 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 recent winter rains, we are currently in a Stage 1 Drought Condition. 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 (TW). The IGA contains a complex formula for computing the annual allotment of effluent produced from the wastewater discharged to the sanitary sewer by Oro Valley Water Utility customers. The Town's effluent is treated at Pima County Wastewater Facilities and then transferred to the TW Sweetwater Reclamation Facility where it is further treated for use in the reclaimed water system or recharged through the TW Sweetwater Recharge Facility. From there Oro Valley's reclaimed water is delivered through TW'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: 17,207 acre-feet • Ground Water Allowance Account 18,428 acre-feet • Effluent Water: 1,500 acre-feet per year The Town currently has undeveloped water resources that consist of our CAP allocation, Long -Term Groundwater Storage Credits, Groundwater Allowance account and effluent water. -16- The long-term storage credits and groundwater allowance accounts are used annually to replace groundwater depletions in accordance with the ADWR requirements, thus undeveloped water resources changes annually. 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 CAP 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. 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 2,000 acre-feet of CAP water in 2009 under the Kai Farms Agreement. In addition, the Water Utility stored an additional 2,000 acre-feet in CAWCD Lower Santa Cruz Recharge Facilities in 2009. Long-term storage credits have accumulated to approximately 17,207 acre-feet. Additionally, the Utility is a partner in the Lower Santa Cruz Managed In -Channel Recharge Project in which effluent water is recharged in the lower Santa Cruz River. Long term storage credits accrued through this project were 105 acre-feet in 2009. 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 (GWA) must be used wisely and carefully managed over the next several years. This account had been depleted over past years to less than 10,000 acre-feet. In 1996, this account initially started with approximately 75,000 acre-feet of groundwater. In 2009, the GWA increased by the purchase of Groundwater Extinguishment Credits (GEC) from Tucson Water (4,000 AF) and Diamond Ventures (4,000 AF). In addition, we pledged 420.9 acre-feet to our GWA from previously held GEC. These actions have increased the current balance of the GWA from 10,007 acre-feet in 2008 to 18,428 acre-feet in 2009. 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 monetary payments and obligations to the CAGRD. Included in the Town's DAWS is 4,000 acre-feet per year of effluent which is the source of supply for our reclaimed water. In 2009, 1,969 acre-feet of reclaimed water was used. The reclaimed water system supplies 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 is recharged through Lower Santa Cruz River Managed In -Channel Recharge Project and 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. -17- Oro Valley owns its effluent through an IGA with the City of Tucson. In addition, Oro Valley has delivered treated effluent as reclaimed water under another IGA with the City 'j of Tucson. Under this IGA, Tucson Water will treat and deliver up to 3.75 MGD of J reclaimed water daily to Oro Valley Water Utility. On days when additional reclaimed water was available, the Utility received up to 4.4 MGD which is the maximum pumping Jrate for the pumps at Thornydale Reservoir and Pump Station. Under our Assured Water Supply Designation, we are required to comply with the Third 'j Management Plan in the Tucson Active Management Area. As part of the Third J Management Plan we are under the Gallons per Capita per Day Program (GPCD). With the use of reclaimed water, we have been in compliance with the GPCD Program and expect to meet all the requirements of this program in 2010. -18- 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 the Northwest CAP Water System Cost Estimate and Alternatives Review Study and the Northwest CAP Delivery System Preliminary Route Evaluation. 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 (existing, new and replacement wells) ➢ Reclaimed Water System ➢ Central Arizona Project water (new CAP water treatment and delivery) ➢ Water Conservation and Drought Monitoring 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 development of CAP and reclaimed water under the water resource planning effort has been included in the Utility's budget under the Alternative Water Resources Development Impact Fee Fund Budget. Potable Water System The potable water system improvements are included in The Potable Water System Master Plan and the 5-Year Capital Projects Program. The demand on our wells has been reduced due to use of reclaimed water for irrigation. This reduction preserves and protects our valuable groundwater for potable water use. All groundwater depletions must be compensated for through the use of our recovery wells, our Groundwater Allowance Account, our Long -Term Storage Credits and/or the CAGRD. In 2009, the Commission recommended and Council approved an IGA for a Cost of Service Study with Tucson and Metro Water to look into the delivery of our CAP water through the Tucson Water system. This study will be the first step for direct delivery of our CAP water on a short- term interim basis through the Tucson Water System. Reclaimed Water 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 Naranja 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 to help reduce demands on the groundwater aquifer. Public Works is currently using reclaimed water for street cleaning and other approved maintenance purposes. This saves the Town both water and money. -19- 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 and also an Intergovernmental Agreement. In 2007 a study entitled Northwest CAP Water System Cost Estimate and Alternatives Review 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. A pipeline routing and cost study was also performed in 2009. This study looked at alternatives for the pipeline route and included environmental, technical and cost criteria. The preferred pipeline route at this time would be aligned along Tangerine Road and then head south to Lambert Lane and then east to a bifurcation point at Camino De Oeste. From this bifurcation point, Marana and Oro Valley would have a pipeline continuing east and Metro and Flowing Wells pipeline would head south to Linda Vista and then east. This pipeline alignment and sizing is based upon the specific flow and pressure needs of each of the Northwest Water Providers. In addition to these facilities, a reliability component would be needed to be constructed by the U.S. Bureau of Reclamation as part of the Central Arizona Project. A reservoir has been discussed as well as the concept of pump station bypasses. Pump station bypasses have recently been studied by the U.S. Bureau of Reclamation as part of a Value Planning Study involving the Northwest Water Providers and the CAP Staff. Central Arizona Project Canal -20- 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 to the four water providers. 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 Town of Oro Valley is committed to the use of CAP water and will continue to work with our partners to see that this concept becomes a reality for our community. Alternatives including recharge and recovery may also play a role in the development of our CAP water. Recent economic conditions may push projected water use demands further out in time. 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 study for distribution system water quality and the effect of the treated CAP water on existing system pipelines. This work is expected to be completed in 2010. CAP Water Treatment Pilot Study Project The Town of Oro Valley, along with the other Northwest Water Providers, has developed a 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 has been operational for several years to investigate 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. Microfiltration, slow -sand filtration, reverse osmosis, and enhanced reverse osmosis methods have been studied and results are very encouraging. This pilot study is planned to continue through calendar year 2010. Intergovernmental Agreements for CAP water The Northwest Water Providers are currently working on an Intergovernmental Agreement (IGA) that will provide for implementation and management of the design and construction of this project. An additional IGA will be developed for the long-term operation of the project. These IGAs will be brought forward to the Commission and Council for approval. -21- WATER CONSERVATION PROGRAM 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, outreach and 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 the community as a whole. In 2009, 179 water audits were completed. Figure 1 illustrates the total number of audits performed annually. Figure 2 illustrates the average number of audits conducted on a monthly basis from 2004-2009. The total number of water audits conducted since the program began in 2003 is approximately 1,200. Figure 1 _22_ AVERAGE MONTHLY PARTICIPATION 2004-2009 25 W H 20 W J a 1 s O N H Q 0 JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC MONTH Mod Figure 2 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 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 effectiveness 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. For audits completed in 2008, water consumption dropped approximately 26% in the first year after the audit resulting in an average water savings of over 4.4 million gallons. This is illustrated in Figure 3. -23- Figure 3 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. 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, at the Oro Valley Library, at Town events, and during water audits. Landscape irrigation schedule cards are also available for watering guidelines related to plant types. Conservation classes, when offered, are well attended and have included topics such as low water use plants and rainwater harvesting. In addition to literature and classes, 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. 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. -24- 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 2009. This condition calls for voluntary restrictions under the Town's DPP. The DPP identifies four different drought stages. 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 groundwater levels in the aquifer underlying Oro Valley. Incentives The current incentive program includes irrigation system rain sensors which are sold at a reduced rate to our customers. To date, approximately 630 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. Low Flow 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 Town Code in 2009 that requires the installation of graywater plumbing in residential construction. In addition, the Landscape Section of the Town Code has been updated to reflect the importance of water conservation. Water plans will be required for irrigation water use on new multi -family, commercial and homeowner association common areas. Requirements also apply to all projects that entail cumulative revegetation of 25% or more landscaped areas. Water plans or "budgets" allow properties to monitor water use much more effectively and determine the presence of leaks much quicker. A fine or surcharge may be imposed when water budgets are exceeded. Water audits for new commercial development are a critical component of the revised code. These revisions will become effective June 2010. -25- 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 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 assess customer needs. In addition, the Water Ways newsletter is now published as part of the on-line Oro Valley Vista magazine. Conservation classes continue to be an important venue to provide the community with educational opportunities on topics such as rainwater harvesting, designing low water use landscapes and the use of gray water for landscape irrigation. Long Term Goals J The Utility continues to evaluate rebates and incentives as potential tools in the water conservation program. Water audits, one of our most beneficial services, assist many homeowners in conserving water; however, extending a more comprehensive service to J homeowner associations and commercial properties will become important. The research and establishment of landscape water budgets for homeowner associations and commercial properties would be a valuable tool for existing properties that are not affected by the revision of the Landscape Section of the Town Code. Water budgets are generally based on plant requirements and plant type. The best methods and practices to calculate water budgets are being assessed by Water Utility Staff. all WATER UTILITY OPERATIONS Production Facilities Division Water 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 (40CFR141) and ADEQ (Arizona Administrative Code Title 18). 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 Water Distribution and a Grade II Water Treatment 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 the Water Utility 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 Water Distribution 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 12.93 million gallons per day (8976 gpm) with a storage capacity of 7.79 million gallons. The groundwater production capacity within the CSWSA is currently 2.67 million gallons per day (1,854 gpm) with a storage capacity of 0.87 million gallons. Production Facility SCADA Operations -27- 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 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 2009: ➢ Assisted with the pump replacement at well D7 ➢ Assisted with the pump sizing design and rehabilitation planning for wells E2, F 1, and D 8 ➢ Facilitated the Sanitary Inspection by PDEQ for system AZ0410164 ➢ Maintained and tested disinfection residuals throughout systems AZ0410164 and AZ0410175 ➢ Assisted with of the specialized bacteriological treatment of well C9 ➢ Performed mechanical and general maintenance at 20 wells, 27 booster stations, and 18 storage tanks ➢ Performed the annual groundwater level survey ➢ Assisted with the electrical arc flash survey for all Utility owned TEP powered potable and reclaimed sites ➢ Assisted with the departmental budget development ➢ Assisted with five reservoir exterior and interior inspections ➢ Assisted with the Well Monitoring capital project and quarterly report ➢ Efficiently operated the potable and reclaimed systems via SCADA ➢ Responded to approximately 104 after hour's calls ➢ Fabricated and installed new access gates at wells D5 and D7 ➢ Fabrication and installation of 55 gallon barrel stand for oiler at well C9 including pad and mounting inside the sound enclosure ➢ Installation and programming of automatic electronic oil dripper at well C9 ➢ Reconfigure the installation of intrusion devices at Big Wash ➢ Installation of ultrasonic level sensor at Stone Canyon ➢ Assist with the reconfiguring of the reclaimed supply lines to Stone Canyon and La Canada South for temporary supply ➢ Electronic flow meter installation, programming and testing at Tangerine ➢ Improve the reclaimed delivery -metering site at Vistoso Highlands for erosion control ➢ Erosion control improvements at Deer Run, Sheraton, Tangerine, and Allied Signal ➢ Replace and improve the main chlorine storage facility at Big Wash ➢ Replaced motors and pumps at the Sheraton Booster ➢ Install and program electronic flow meter at well D4 ➢ Remote Terminal Unit programming at 16 sites _28_ SCADA network system maintenance on forty-four Remote Terminal Units, two Master Controllers, two Human Machine Interfaces, and one Master Server ➢ Participated in the Energy Efficiency Project ➢ Staff training by ADOT for hazardous material transport (3 yr refresher) for chlorine ➢ Staff training, personal development hours for operator licensing ➢ Performed approximately 7,020 chlorine endpoint tests and 4,420 routine site checks 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 monitor and operate all water systems via the SCADA system on a twenty four hour seven day a week (24/7) basis. Production facilities staff is also responsible for the installation and maintenance of security devices at the Utility's facilities. As part of regulatory compliance, a Sanitary Survey of System AZ0410164 was conducted by Pima County Department of Environmental Quality (PDEQ) in 2009 and there were no violations. Production staff works very closely with Distribution Facilities and Water Quality personnel to 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 342.3 miles of potable water main, 12.5 miles of reclaimed water mains for a combined total of 354.8 miles of mains, approximately 2,002 fire hydrants on the potable water system, 2 fire hydrants on the reclaimed system and 7,320 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, and air release valves. A valve exercising program that helps monitor equipment and develop maintenance cycles has been established. The program provides information and equipment history data that facilitate a proactive replacement program. All Distribution Facilities personnel are operators licensed and certified by the Arizona Department of Environmental Quality (ADEQ). The operators have the direct responsibility to operate the distribution section of the water systems according to the regulations and rules set forth by the EPA (40CFRI41) and ADEQ (Arizona Administrative Code Title 18). The Division works closely with Customer Service and responds to complex customer work orders such as high/low pressure, water quality, service line breaks, hydrant repairs, system 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 17 active 17 inactive} pressure reducing valves (PRV) for a total of 24 PRVs, 732 air relief valves (ARV) and 880 drain valve assemblies (DVA). -29- The Division also responds to water pipeline leaks and repairs these leaks in a timely and cost effective manner to minimize impacts to our customers. The Division also worked with local fire protection agencies to flow test and repair approximately 51 fire hydrants. Installation of above ground 6 inch meter with 4 inch bypass. The following are some of the major activities and accomplishments that were performed by the Distribution Facilities Division in 2009: ➢ Maintained, replaced and/or repaired 28 hydrants ➢ Flow tested and/or repaired 49 hydrants for fire protection J ➢ Performed 100 tests and/or repairs for the maintenance and operation of the 25 pressure reducing valves ➢ Maintained, replaced and/or repaired 72 air relief valves 1 ➢ Maintained, replaced and/or repaired 3 drain valve assemblies ➢ Performed 3,389 bluestakes for underground pipeline and facilities locations ➢ Responded to and repaired 6 water pipeline breaks ➢ Responded to approximately 254 customer inquiries in the field ➢ Responded to and repaired 10 service line breaks ➢ Responded to 444 after hour call outs ➢ Installed 28 new hydrant defenders The Distribution Division also has significant direct customer contact and responded to customers regarding pressure or flow related problems in the field. The Distribution Division, in conjunction with the Production Facilities Division, provides 24-hour on -call staffing to respond to water system problems. During this past year, the Utility equipped J 2 vehicles for emergency responses, built a fire hydrant repair trailer and 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. -3 0- SECURITY AND EMERGENCY RESPONSE PLAN The Public Health Security and Bioterrorism Preparedness and Response Act were 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 Homeland Security Presidential Directive #7 (HSPD7) the Water Utility infrastructure is considered critical infrastructure of national interest. Under current Federal guidelines, water operations personnel are considered first responders. Though primarily mandated by State rules with public health responsibilities, water operators also have a public safety responsibility with relevance to the water systems they are charged with operating. 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 and Distribution Facilities staffs coordinate their response actions. They will respond with an appropriate level of personnel to mitigate the problem. 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 were submitted to the EPA and ADEQ in June 2004. The VA and the ERP were reviewed in 2009. They are up to date regarding the Utility operational or response situations. Contact information and procedures were also updated. 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. In 2009, Utility personnel, with the assistance of a security consultant, reviewed, refined and updated the security program, Emergency Response Plan, and the Business Continuity Plan. Under the security program a series of training classes and exercises were made available and completed by the Utility Staff. This training is done on an annual basis as per the guidelines from the Department of Homeland Security, FEMA, and the EPA. The Water Utility is registered with the NIMS Compliance Assistance Support Tool (NIMSCAST) and the compliance metrics assessment was completed for 2009. Utility personnel will continue to complete the required training and certification for Incident Management courses provided by FEMA. Operations personnel also receive emergency management courses provided by ADEQ. The Business Continuity Plan (BCP) and the Emergency Response Plan (ERP) are reviewed and updated annually to facilitate the ability of the Utility to continue vital administration, business services, and response actions in the event of an emergency or disaster. -31- The hydrant lock development process illegal entry and use. program continues to be implemented through the new and all hydrants within Oro Valley systems are protected from In 2009, 28 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. Perimeter barrier fencing at all active production facilities, which include booster stations, are inspected on an annual schedule to maintain integrity. 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. These security features include security walls, motion sensors and cameras. 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 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). The Utility also joined Arizona Water/Wastewater Agency Response Network (AZWARN) in 2009 to mutually cooperate with other water and wastewater providers in an emergency. -32- ENGINEERING & PLANNING The Engineering & Planning Division is responsible for planning and managing the design, construction and inspection of all new water infrastructures for the Town of Oro Valley. New water infrastructure is constructed both through the new development process where the developer finances the project and through the Water Utility's capital improvement program. The Engineering and Planning Division provides technical support to both operational groups, Distribution and Production as well as to other Water Utility personnel. 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. As part of the long term plan to deliver CAP water to the Town in the near future, the Engineering &Planning Division initiated the process to select a qualified engineering firm to perform an engineering study on the distribution of CAP water to the Town of Oro Valley. That process was completed with the selection of CH2M Hill to perform the study. The study will be completed by spring of 2010. The focus of the study will be water quality issues such as total dissolved solids JDS) and pH, logistics for delivery and any new required infrastructure as well as associated costs. New Development 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. Each new development project is required to have an executed Line Extension Agreement (LEA) which outlines the responsibilities of the developer and the Town of Oro Valley. The LEA is the legal document that transfers the ownership of the new infrastructure to the Town and provides a two year warranty for the new water infrastructure installed. The New Development Section works closely with the Pima County Department of Environmental Quality to acquire a certificate for the "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 process to ensure quality construction and that water facilities are constructed in accordance with approved standards. In 2009, the New Development Section reviewed and approved 15 water improvement plans for construction. Eleven (11) plans were constructed, inspected, approved as -built, and placed into service. The completion of these projects added approximately 1.1 additional miles of pipeline to the existing water distribution system. -33- CAPITAL PROJECTS The Engineering and Planning Division administered contracts for projects and also managed several projects in 2009. These 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. These capital projects are described below. Pressure Reducing Valve (PRV) Stations Three existing PRV stations were modified in 2009 bringing them from underground to aboveground. This modification provides better access for maintenance as well as improved reliability and improved safety for Utility personnel. Two stations were modified by staff from the Distribution Division. The estimated savings by Oro Valley staff performing the work is approximately $30,000. 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 2010-2011. Well Drilling: In November 2009, drilling was completed on a new well near First Ave. and Tangelo. This is a replacement production well; currently we are designing the equipment and site improvements. The new well is equipped with a 150 HP motor enclosed with a sound barrier. The facility will include a disinfection system and a seven foot security wall. Construction will be complete in FY 2010-2011. The new well will be capable of pumping 600 gallons per minute of water into the distribution system. This well is expected to be in operation by summer of 2010. Well E-113 Drilling Equipment North La Canada Reservoir: The reservoir is a 3.0 million gallon DYK, Inc. pre -stressed concrete reservoir located near Moore Road and King Air Drive. The Town will award the construction contract in the first quarter of FY 2009-2010. -34- It is an in -ground reservoir and includes provisions for a future booster pump station which will provide service to areas north and west of the site. Design consideration has been made to accommodate an additional reservoir at the site in the future. DYK Inc. Pre -Stressed Tank Innovation Park Drive 16-Inch Water Main Replacement: This project is complete. The Town installed 2,000 linear feet of ductile iron pipe in the vicinity of Innovation Park Drive and Tangerine Road. The existing pipe was replaced because it was not designed to operate as a distribution main. Replacement of this main will improve distribution system delivery and reliability. Lambert Lane Water Main Replacement: Currently we are designing a water main replacement and relocation on Lambert Lane in advance of scheduled road improvements. Steam Pump Ranch Well: The Town is currently planning for a future production well located in historic Steam Pump Ranch. The Town has secured an access easement to the proposed well site through the adjacent commercial development to the north. The well drilling is proposed for FY 2011 / 12. Construction Inspection All new development and capital 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. In addition to inspecting new construction, both inspectors assist Operations Staff in the monitoring and inspection of existing water main repairs. This year, inspections were performed on eleven new development projects and two capital improvement projects. These projects included the addition of approximately 1.1 miles of potable water system pipeline, one well drilling project and the construction of one security wall enclosure. Due to the decline in new development projects, Water Utility inspectors were available to inspect -35- two of the capital improvement projects typically performed by outside consultant inspectors. Using our inspectors on these projects saved the Water Utility an estimated $20,000. Future Projects FY 2010-11 Potable Water Capital Improvement projects planned for FY 2010-11 include the following: • Equip Replacement Well E-1 B on First Ave. and Tangelo • Design and construct water main improvements on Lambert Lane • Reconstruction of the El Conquistador booster station • Finish construction for the 3.0 MG La Canada reservoir and water main • Design and construct water main replacements in Campo Bello Subdivision • Relocate chlorine storage facility Construction costs have stabilized in the past twelve months and we expect costs to slightly increase through the next fiscal year. Five Year Capital Projects Program: The following table summarizes the Utility's proposed five year Capital Projects Program. A detailed schedule of the capital improvements program may be found in Appendix D. CIP FY 10/11 FY 11/12 FY 12/13 FY 13/14 FY 14/15 5 Year Total Existing System $ 411909000 $ 355305000 $ 19410,000 $ 2,200,000 $ 298805000 $ 14,2105000 Expansion Related $ 354309000 $ 0 $ 0 $ 0 $ 0 $ 35430,000 Total $ 7,620,000 $ 355301000 $ 1 ,4 101000 $ 29200,000 $ 258801000 $ 1796405000 The capital projects for existing system improvements FY 2010-11 will be financed with a Water Infrastructure Finance Authority (WIFA) low interest loans and cash. It is proposed that projects in future years will be financed through proceeds from cash reserves and future debt issuance. All expansion related improvements will be financed with remaining Series 2003 bond proceeds and with cash generated from the Potable Water System Development Impact Fees. -36- FINANCIAL HIGHLIGHTS The Utility's revenue consists of potable and reclaimed water sales, groundwater preservation fees, miscellaneous service fees and charges, water development impact fees 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 revenue for this fund is potable water development (impact) fees. These fees are paid at the time a meter is purchased. The funds collected ensure that system expansion is paid for by new development. ➢ The Alternative Water Resources Development Impact Fee Fund provides funding for the development of renewable sources of water supply, specifically reclaimed water and CAP water and any infrastructure required for delivery of those resources. The sources of revenues for this fund are impact fees and Groundwater Preservation Fees. Alternative water resources 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 2008-09 for all funds within the Utility: Revenue Source Amount Received Potable Water Sales: Residential $ 7,678,865 Commercial $ 744,017 Irrigation $ 1,099,43 3 Turf $ 307,950 Construction $ 393,978 Reclaimed Water Sales: Turf $ 1,401,602 Construction $ 6,592 Irrigation $ %009 Misc. Service Fees & Charges $ 520,030 Total Enterprise Fund $1291619476 Groundwater Preservation Fees $ L387,270 Alternative Water Resources Development Impact Fees $ 812,740 Potable Water System Development Impact Fees $ L588M84 Interest Income $ 285,658 Total for FY 2008-09 $1692359228 -37- Revenues for the Enterprise Fund for FY 2008-09 from water sales have slightly increased due to approved increases in water rates. Revenues from Potable Water System Development fees decreased in FY 2008-09 due to a decrease in growth. The Utility used cash reserves to finance existing system capital projects in FY 2007-08 and FY 2008-09. In FY 2009-10 cash reserves will also be used to finance a portion of the existing system improvements; however, a low interest loan through WIFA will finance the majority of the improvements. The budgeted expenditures (excluding depreciation and amortization) are combined for all funds and are compared to the actual expenditures for FY 2008-09 in the following table: Expenditures Budget FY 2008-09 Actual Spent FY 2008-09 Difference Under (Over) Percentage Under (Over) Personnel $ 2,470,040 $ 2,447,642 $ 22,398 0.9% O&M $ 505,195 $ 5,772,075 ($ 76,880) (1.4%) Capital $ 6,165,826 $ 3,627,553 $ 2,538,273 41.2% Totals $1493319061 $1198479270 $ 294879791 17.4 % The Utility's capital expenditures were under budget as a result of delays in construction of potable water system projects. In October 2009, the Town Council authorized the Water Utility to obtain a loan from WIFA to finance capital projects for existing system improvements in the amount of $3,403,000. The terms of the loan are 3.171 % interest for 20 years. There was no principal balance on this loan during FY 2008-09. The following table is a summary of the outstanding debt and debt service payments (principal and interest) for all funds within the Utility: Fund Bond Series Outstanding Debt As of 6/30/09 Debt Service Payments FY 2008-09 Enterprise 1999 $ 0 $ 0 Enterprise 2001 $ L33504 $ 299,260 Enterprise 2003 $17AO,250 $ 1,651,579 Enterprise 2005 $ 1,844,700 $ 151,557 Enterprise 2007 $16,420XO $ 74%356 AWRDIF 2003 $11J3000 $ 87908 AWRDIF (WIFA) 2008 $ 4,373,270 $ 296,177 AWRDIF (WIFA) 2009 $ 0 $ 0 AWRDIF (CAP) N/A $ 1,414, 853 $ 521,494 PWSDIF 2003 $ 7,48500 $ 637,646 Totals $6194839977 $ 591869737 In May 2009, Utility Staff received authorization to pay off the Series 1999 Bonds. The Utility redeemed $1,835,000 in principal plus accrued interest. The interest to be saved by early redemption of these bonds is $490,165. -3 8- The Water Utility and Finance Department continue to review bonds and debt service to look for opportunities to reduce debt obligations when it is fiscally sound and there is a financial benefit. By reducing outstanding debt, it will be easier to maintain the required 1.30 debt service coverage requirement which may result in smaller rate increases. 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 2009, 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 2009-10 on November 18, 2009 by Resolution (R) 09-74. The approved water rates included an increase to the base rates, commodity rates and the Groundwater Preservation Fee. The increases went into effect on December 19, 2009. The average residential customer experienced an increase of 5.6% or approximately $2.06 per month. This included an increase in the Groundwater Preservation Fees (GPF) of $0.20 from $0.55 to $0.75 per 1,000 gallons for potable water customers. For reclaimed water, the GPF increase was $0.10 from $0.30 to $0.40 per 1,000 gallons. Other service fees and charges that were increased include new service establishment fees, reconnection fees, backflow permit fees and security deposits. All current water rates, fees and charges are available to view on the Town website at http://www.orovallevaz.gov/Town Government/WaterUtility/Billing and Customer Services/Water Rates and Fees.htm The Alternative Water Resources Development Impact Fees were last increased in December 2008 and the Potable Water System Development Impact Fees were increased in September 2007. The current impact 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. In accordance with Mayor and Council Policy, a Water Rates Analysis Report will be prepared during 2010 that contains information on the three funds that comprise the Oro Valley Water Utility. Each fund is individually analyzed with regard to revenue and revenue requirements. It is anticipated that the Water Rates Analysis Report will be completed in September of 2010. If the Notice of Intent is approved by Council to increase water rates, a public hearing date will be set to review and consider the recommended rate increases and hear comments from residents and customers. -39- TOWN OF ORO VALLEY WATER UTILITY COMMISSION 2010 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 Water Conservation -Audits Water Quality Samples Meter Reads Billing Collection Rate 2007 2008 2009 185035 181330 181401 2579110927000 2, 569, 729, 000 2, 492,488, 000 5001894, 000 5741769, 000 6371132, 000 4796 4514 3, 389 415507 435016 375430 2, 037 2, 684 31616 205 145 179 5, 998 15421 4,491 210, 352 2125162 2145530 99.90% 99.90% 99.90% A-1 FA A-3 Billing Collection Rate 99.90% 99.90% 99.90% F .fib E 100.00% - - 80.00 60.00% 40.00% 20.00% 0.00% ' 2007 2008 2009 A-4 TOWN OF ORO VALLEY WATER UTILITY COMMISSION 2010 ANNUAL REPORT APPENDIX B WATER QUALITY �-+ X • L N C CO N -� O O '•"' U C U C O CO S a) a Z4) O a)U a) a) CnO O O O O cm•O 0 0 Ca U) O C C `~ C N C N M CD v a O O Cu Cu O) O) O) CD C C (a :O O L C C C N N CDO OLcn C L- N O CC� E Z- C > _ m= = L N U U L Cm 0) O) fl.. 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V r A N M � L1 G� LO .0 a0+ �O•r O d I Cl) Cl) C0 H W w D-2 TOWN OF ORO VALLEY WATER UTILITY COMMISSION 2010 ANNUAL REPORT APPENDIX E LIST OF ACRONYMS LIST OF ACRONYMS ACH Automated Clearing House (automatic payment program) ADEQ Arizona Department of Environmental Quality ADWR Arizona Department of Water Resources AF Acre -Feet AWWA American Water Works Association AZWARN Arizona Water and Wastewater Agency Response Network BCP Business Continuity Plan CAGRD Central Arizona Groundwater Replenishment District CAP Central Arizona Project CAWCD Central Arizona Water Conservation District CPP Capital Projects Program CSWSA Countryside Water Service Area CY Calendar Year DAWS Designation of Assured Water Supply EPA Environmental Protection Agency ERP Emergency Response Plan FEMA Federal Emergency Management Act FY Fiscal Year GAP Groundwater Action Plan GIS Geographic Information System GPM Gallons Per Minute IGA Intergovernmental Agreement IOC Inorganic Compound ISAC Information Sharing &Analysis Center MCL Maximum Contaminate Level MRP Meter Replacement Program MTP Meter Testing Program OVWSA Oro Valley Water Service Area pCi/L Picocuries Per Liter PDEQ Pima County Department of Environmental Quality POE Point Of Entry ppb Parts Per Billion ppm Parts Per Million SCADA Supervisory Control And Data Acquisition SOC Synthetic Organic Compound SSF/RO Slow Sand Filtration /Reverse Osmosis TCE Trichloreoethylene TTHM Total Trihalomethanes VA Vulnerability Assessment VOC Volatile Organic Compound Water CASA Water Conservation Alliance of Southern Arizona WOW Water on the Web E — 1