Loading...
HomeMy WebLinkAboutPackets - Council Packets (929) AGENDA ORO VALLEY TOWN COUNCIL STUDY SESSION JANUARY 24, 2007 ORO VALLEY TOWN COUNCIL CHAMBERS 11000 N. LA CANADA DRIVE STUDY SESSION - AT OR AFTER 5:30 PM CALL TO ORDER ROLL CALL STUDY SESSION AT OR AFTER 5:30 PM 1. PROPOSED CHANGES TO TOWN CODE - CHAPTER 15 WATER CODE REGARDING BACKFLOW PREVENTION AND CROSS- CONNECTION CONTROL ORDINANCE 2. PROPOSED CHANGES TO TOWN CODE - CHAPTER 15 WATER CODE AND CHAPTER 6 BUILDING CODE REGARDING WATER CONSERVATION MEASURES INCLUDING NG RAIN WATER HARVESTING, GRAYWATER USE AND ELECTRIC OUTLETS FOR HOT WATER RECIRCULATION SYSTEMS 3. IMPACT FEES ANALYSIS FOR THE POTABLE WATER DEVELOPMENT IMPACT FEE AND THE ALTERNATIVE WATER RESOURCE DEVELOPMENT FEE POSTED: 01/17/07 4:30 p.m. rg The Town of Oro Valley complies with the Americans with Disabilities Act (ADA). If any person with a disability needs any type of accommodation, please notify the Town Clerk's Office at (520)229-4700. TOWN OF ORO VALLEY COUNCIL COMMUNICATION STUDY SESSION: January 24, 2007 TO: HONORABLE MAYOR&COUNCIL MEMBERS FROM: Charles Soper,Lead Operator,Water Quality Philip C. Saletta,Water Utility Director SUBJECT: Backflow Prevention and Cross-Connection Control Ordinance SUMMARY: The Town of Oro Valley originally adopted a Backflow Prevention and Cross-Connection Control Ordinance in January 1998 pursuant to statutory requirements that water providers have the responsibility to prevent contamination of public water systems from backflow. The responsibility begins at the source and includes the entire water supply distribution system and ends at the user connection (typically the water meter). Additionally, the water provider has the responsibility for promulgating and enforcing laws, rules, regulations and policies necessary to fulfill the designated responsibilities. The attached draft backflow prevention and cross-connection control ordinance is a revision of the original ordinance. The major changes include: • backflow prevention requirements for class 1 and 2 fire systems • backflow prevention requirements for graywater • backflow prevention requirements for reclaimed water • test notification policy was modified to allow for two customer notices instead of three. • policy to address non-compliance issues with commercial accounts - OVWU will perform testing if necessary • changes to the penalties and fees sections • general language changes The Town's Legal Department extensively reviewed the draft ordinance. In addition, the propose changes were discussed with members of the Arizona Backflow Prevention Association. Some of the comments received were incorporated into the draft ordinance. Others were not pertinent to the Town and/or the protection of the public water distribution system. The draft Backflow Prevention and Cross-Connection Control Ordinance was presented to the Water Utility Commission on January 8, 2007 and was unanimously approved to forward to the Town Council for their consideration. Water Utility Staff will be making a brief presentation at the Study Session. FISCAL IMPACT: There is no financial impact to the Town if the updated Backflow Prevention and Cross-Connection Control Ordinance is adopted by the Town Council. TOWN OF ORO VALLEY COUNCIL COMMUNICATION PAGE 2 OF 2 ATTACHMENTS: 1. Draft Backflow Prevention and Cross-Connection Control Ordinance &A,62;SI) Lead Operator, Water Quality APP/k6; 441/(44- Water Utility Director 0.11 a/hit/0- Town Manager DRAFT J an nary 2007 BACKFLOW PREVENTION AND CROSS-CONNECTION CONTROL PROGRAM Section I. Purpose Thep �u oses of this backflow prevention and cross-connection control program are as follows: A) Toprotect thepublic potable water supply for the Town of Oro Valley from the possibility of contamination or pollution by preventing the backflow of contaminants and pollutants. B) Top romote the elimination or control of cross-connections, actual or potential, between a customers' internal water systems, plumbing fixtures, industrial piping systems, and the public water supply. C) Top rovide for a continuing "service protection" program of cross-connection control that willp revent the contamination or pollution of the public potable water supply system. D) Unless a cross-connection problem is specifically identified, or as otherwise provided in this Section, the requirements of this Section shall not apply to single family residences used solely for residential purposes. Section II. Definitions ADEQ: Arizona Department of Environmental Quality Auxiliary Supply:Su ply: Any water supply on or available to any premises other than the publicpotable otable water supply. These auxiliary water supplies may include, but are not limited to, water from another utility's potable water system or from any source such as a well, spring, river, pond, lake, reservoir, stream or any other body of water. AWWA: American Water Works Association. Backflow: A flow of water within a potable water system that is the reverse of that intended, thus allowing nonpotable water to flow into a potable water pipe. Backflow Prevention Assembly: An assemblance of one or more body components including shutoff valves that has been approved by the Foundation for Cross-Connection Control and Hydraulic Research at the University of Southern California. Backflow Prevention Assembly Tester: A person who is currently certified by an authority recognized in the Arizona Department of Environmental Quality regulations and is approved and registered with the Utility to test, repair, and maintain backflow prevention assemblies. Compliance Date: The date by which the annual Backflow Prevention Assembly compliance test report must be received by the Utility's Backflow Prevention Section stating that the p backflow assembly meets the requirements of this code or for violations of this code, the specified date by which a violation must be remedied. F:\individual Files\sseng\Ordinances\BackiloW Ordinance Update 2006 1(2).doc 1 DRAFT January 2007 Compliance Fee: The fee that is charged to recover the administrative costs that are incurred when a customer's water service is discontinued. Systems: Another public or private water system where the Utility is the sole Consecutive source of water for the other supplier's water system. n: An impairment of the quality of potable water by sewage, industrial fluids, Contamination: p waste liquids, compounds, or anyother materials, solids, gases, or liquids to a degree which in p the judgment g of the Utilitydegrades the water quality and creates a health hazard. Cross-Connection: Anyunprotected actual or potential physical connection or structural Conn arrangementpiping ofor fixtures between a consumer's water system and the public potable water systemthrough which it is possible to introduce into any part of the public potable water g system any used water, industrial fluid, gas, liquid, solid or any other substance. Examples of such cross-connections include, without limitation, bypass arrangements, jumper connections, removable sections, swivel or changeover assemblies, or any other temporary or permanent connecting arrangement through which backflow may occur. Cross-Connection onnection Protection: The degree of protection against cross-connections existing between the public water supplies and private plumbing systems. tomer: The person/entity accepting financial responsibility for water service from the .Customer: p Y Utility. Gray water: Untreated wastewater from bathtubs, showers, wash basins, washing machines, and laundrytubs. Graywater does not include wastewater from toilets, urinals, kitchen sinks or yw dishwashers. connection or potential cross connection between the public water supply and a Hazard: A cross private plumbingsystem involving any substance that could, if introduced into the public water Y supplies, cause contamination or pollution, or have a high probability of causing such effects. Inspection: A visual examination of premises or any backflow protection equipment, materials, workmanship and operational performance. Maintenance means work performed or repairs made to keep backflow prevention assemblies operable and in compliance. PSIG: Pounds Per Square Inch Gauge. Pollution: Anysubstance that creates an actual or potential threat to the physical facilities of the public water supply systems or to the public water supplies which, although not dangerous to health, would constitute a nuisance or be aesthetically objectionable, or could cause damage to the system or its appurtenances. 2 F:\lndividual Filcs\sseng\Ordinanccs\Back(lov►Ordinance Update 2006 I(2).doc DRAFT January 2007 Reclaimed Water: Water that, as a result of treatment of wastewater, is suitable for a direct beneficial use or a controlled use that would not otherwise occur and is not safe for human consumption. Service Connection: The terminal end of a service connection from the public potable water system where the Utilityloses jurisdiction and sanitary control over the water at its point of delivery to the customer's water system. If a meter is installed at the end of the service connection, then the service connection shall mean the down-stream end of the meter. There should be no unprotected takeoffs from the service line ahead of any meter or backflow- prevention assembly located at the point of delivery to the customer's water system. Service connection shall also include water service connection from a fire hydrant and all other temporary or emergency water service connections from the public potable water system. Service Protection means the acceptable backflow prevention method installed between the Utility's meter and a customer's private plumbing system. Utility: Town of Oro Valley Water Utility Section III. Backflow prevention required. A) When Oro Valley Water Utility determines that the water supplied by the public water system may be subject to contamination or pollution, a backflow prevention method shall be required at every service connection to a customer's water system. The customer shall install the required backflow protection within the time specified by the Utility. In determining the time in which backflow protection shall be installed, the Utility shall consider the degree of hazard potential to the public water supplies. B) The backflow prevention method required shall be determined by the Utility. The method required by the Utility shall be sufficient to protect against the hazard potential, as determined by the Utility, to the public potable water supply. C) Residential service connections will be exempt from backflow prevention unless it is determined by the Utility that the potable water supplied by the public potable water system may be subject to contamination, pollution or other deterioration of quality by conditions or potential conditions within the customer's water system. Section IV. Hazard potential Thep otential degree of hazard to the public potable water supply system from a customer's water supply system shall be determined using the following hazard factors: A) Health: Any actual or potential condition, device or practice which, in the judgment of the Utility, may create a threat of contamination to a potable water supply or may create a danger to the health and well-being of the potable water consumers. F:Undividual Filcs\sscng\Ordinanccs\Back(low Ordinancc Updatc 2006 1(2).doc 3 DRAFT January 2007 B) Plumbing: An actual or potential plumbing cross-connection in a customer's water supply system that has not been protected by an approved backflow prevention assembly. A plumbing hazard may be either a pollution or contamination hazard. C) Non-health: Any actual or potential condition, device or practice which, in the judgment of the Utility, may create a threat of pollution to a potable water supply system. D) System: Anyactual or potential condition, device or practice which, in the judgment of the Utility maycreate a threat of severe damage to the physical properties of a potable water supply 1 system or that would have a protracted effect on the quality of the potable water in the system. Section V. Backflow prevention methods; list All backflowp revention assemblies shall be installed, maintained and tested in accordance with thep arameters of the manufacturer and the Utility. The following are the approved types of • backflowp revention assemblies which the department may require. (See Appendix A for schematics and additional information) A) Air Gap (AG): The unobstructed vertical distance through free atmosphere between the lowestp oint of a water supply outlet, pipe or faucet supplying potable water to a tank, plumbingfixture or other device and the flood level rim of the tank, plumbing fixture or other device. An approved air gap shall be at least twice the diameter of the supply pipe or faucet and in no case less than one (1) inch. B) Reduced Pressure Principle Assembly (RPA): A backflow prevention assembly containing two independently action approved check valves together with a hydraulically operating, mechanically independent pressure differential relief valve located between the check valves, and at the same time below the first check valve. The assembly shall include properly located test cocks and tightly closing shut-off valves at each end of the assembly. p Y C) Reduced Pressure Principle Detector Assembly (RPDA): An assembly composed of a line sized approved reduced pressure principle assembly with a bypass containing a specific water meter and an approved reduced pressure principle assembly. D) Double Check Valve Assembly (DC): A backflow prevention assembly composed of two independently acting, approved check valves, including tightly closing shut-off valves p Y located at each end of the assembly and fitted with properly located test cocks. E) Double Check Detector Assembly (DCDA or DDCVA): An assembly composed of a line size approved double check valve assembly with a bypass containing a specific water meter and an approved double check valve assembly. F) Pressure Vacuum Breaker Assembly (PVB): A backflow prevention assembly containing an independently operating, loaded check valve and an independently operating, loaded air p Y inlet valve located on the discharge side of the check valve. The assembly shall be equipped F:Undividual Filcs\sscng\Ordinanccs\Back0ou Ordinance Updatc 2006 1(2).doc 4 ► DRAFT January 2007 withp roperly located test cocks and tightly closing shutoff valves located at each end of the assembly. G) Spill-Resistant Pressure Vacuum Breaker (SVB): An assembly containing an independently operating internally loaded check valve and independently operating loaded air inlet valve located on the discharge side of the check valve. The assembly shall be equipped with a properly located test cock, properly located bleed/vent valve and tightly closing resilient seated shutoff valves located at each end of the assembly. Any backflow prevention assembly equipped with test cocks shall have been issued a certificate of approval by the USC Foundation for Cross-Connection Control and Hydraulic Research. Any backflow prevention assembly not equipped with test cocks shall be certified by a third party entity unrelated to the product's manufacturer or vendor and approved by the ADEQ. Section VI. Backflow prevention methods required A) A backflow-prevention assembly shall be installed on each service line to a customer's water system at or near the property line on private property or immediately inside the building being served; but in all cases, before the first branch line leading off the service line wherever the following conditions exist: 1. In the case of premises having an auxiliary water supply, the public water system shall be protected against backflow from the premises by installing an AG or RPA. 2. In the case of premises on which any industrial fluids or any other objectionable substances are handled in such a fashion as to create an actual or potential hazard to the public water system, the public system shall be protected against backflow from the premises by installing a backflow-prevention assembly in the service line, appropriate to the degree of hazard. This shall include the handling of process waters and waters originating from the Utility system that have been subject to deterioration in quality. AG, RPA, or DC. 3. In the case of premises having (1) internal cross-connections that cannot be permanently corrected and controlled, or (2) intricate plumbing and piping arrangements or where entry to all portions of the premises is not readily accessible for inspection purposes, making it impracticable or impossible to ascertain whether or not cross-connections exist, the public water system shall be protected against backflow from the premises by installing an AG or RPA. 4. In the case of any premises where there is the potential for pollution, the public water system shall be protected by an approved DC, PVB, or SVB. 5. Temporary potable water connection for any use, including construction sites and jumpers shall require a RPA provided and maintained by the Utility. B) When two or more of the aforementioned conditions exist on the same premises and are served by the same service connection, the most restrictive backflow protection required for any of conditions shall be required to be installed at the service connection. The order of most restrictive to least restrictive backflow protection shall be as follows. 1. Air Gap (AG). F:\Indi'vidual Filcs\sscng\Ordinanccs\Backflo%Ordinance Update 2006 1(2).doc 5 DRAFT ,January 2007 2. Reduced Pressure Principle Assembly (RPA). 3. Reduced Pressure Principal Detector Assembly(RPDA). 4. Double Check Valve Assembly(DC). 5. Double Check Detector Assembly(DCDA). 6. Pressure Vacuum Breaker Assembly(PVB). 7. Spill Resistant Pressure Vacuum Breaker(SVB). Section VII. Backflow prevention methods required for Reclaimed Water and Graywater Systems A) There shall be no cross-connections between reclaimed water or graywater systems and potable water systems. Prior to service, all connections to the reclaimed water system shall be reviewed, inspected, and approved by the Utility's backflow prevention section. B) Where both reclaimed water and potable water are supplied to a reclaimed water use area, a reduced ressure principle backflow prevention device (RPA or.RPDA) or an approved air p gap separation shall be installed at the potable water service connection to the use area. C) WhereP otable water is used to supplement a reclaimed water system, there shall be an air gap separation, approved and regularly inspected by the Utility, between the potable water and reclaimed water. D) Premises using Graywater ater Systems shall install a RPA at the potable water service connection to the property. E) Parts, tools, au es, and/or other equipment required for the maintenance and testing of g g backflowp revention devices on the reclaimed water system shall not be used on the potable water system. All backflow prevention maintenance and testing equipment for the reclaimed system shall be color-coded purple. Section VIII. Backflow prevention assembly installation requirements A) Backflowp revention assemblies shall be installed and maintained by the customer, at the customer's expense and in compliance with the standards and specifications adopted by the Utility, at each service connection. The customer is responsible for notifying the Utility of any installation, repair, relocation or replacement. B) The backflowp revention assembly shall be installed on private property in an accessible location aboveground, as close as possible to the service connection with proper clearances in accordance with the current set of standard details approved by the Utility for backflow prevention assemblies. (See Appendix A) The backflow prevention assembly shall be installed immediately following the meter and in all cases before the first branch line. The assembly shall have a diameter equal to or greater than the diameter of the service connection. Each service connection will require its own backflow prevention assembly. F:\Individual Files\sseng\Ordinances\BacktloW Ordinance Update 2006 1(2).doc 6 r r DRAFT January 2007 C) When a customer requires a continuous water supply, two (2) or more backflow prevention assemblies of the same type shall be installed parallel to one another at the service connection to allow a continuous water supply during testing of each individual backflow prevention assembly. When backflow prevention assemblies are installed parallel to one y another, the sum of the cross-sectional area of the assemblies shall be equal to or greater than the cross-sectional area of the service connection or service line piping at the point of installation. D) For an Air Gap (AG) installation, all piping installed between the customer's connection and the receiving tank shall be entirely visible unless otherwise approved in writing by the Utility. E) A PVB or SVB assembly may be installed for use on a landscape water irrigation service if all of the following criteria are met. In all other circumstances, an RP assembly is required: 1. The water use beyond the assembly is for irrigation purposes only; 2. The PVB/SVB is installed in accordance with manufacturer's specifications; 3. The irrigation system is designed and constructed to be incapable of inducing backpressure; 4. Chemigation, the injection of chemical pesticides and fertilizers, is not used or provided for in the irrigation system; and 5. No other source of water is available on the premises. F) Nop erson shall alter, modify, bypass or remove a backflow prevention method without the approval of the Utility. G) Installation of the backflow prevention assembly must be completed within the time specified by the Utility. A time extension may be granted by the Utility. H) If a customer fails to install a backflow prevention assembly pursuant to this article, the Utility shall discontinue water service and assess a compliance fee pursuant to this article. I If the Utility determines, after inspection of the customer's system, that a backflow prevention method less restrictive than that required in Section VI (A) will provide adequate protection of the public water supply, the Utility may, at its sole discretion, modify or waive the requirements of Section VI (A) accordingly. In determining, waiving, or modifying backflow requirements, the Utility shall consider the hazard potential to the public water system based on the design of the customer's water system. Written notification of the decision will be provided to the property owner. Section IX. Installation of backflow prevention assemblies for fire systems F:'\Individual Filcs\sscng\Ordinanccs\Backfow Ordinance Updatc 2006 1(2).doc 7 DRAFT January 2007 A) FireY rotection systems may consist of sprinklers, hose connections, and hydrants. Sprinkler p may systems be dry or wet, open or closed. Systems consisting of fixed-spray nozzles may Y Y be used indoors or outdoors for protection of flammable-liquid and other hazardous processes. It is standard practice, especially in cities, to equip automatic sprinkler systems with fire department pumper connections. B) For cross-connection control, fire protection systems shall be classified on the basis of water source and arrangement of supplies as follows: 1. Class 1: Direct connections from public water mains only; no pumps, tanks or reservoirs; noh sical connection from other water supplies; no antifreeze or other additives of any p Y kind; all sprinkler drains discharging to atmosphere, dry wells or other safe outlets. 2. Class 2: Same as class 1, except that booster pumps may be installed in the connections from the street mains. It is necessary to avoid drafting so much water that pressure in the water main is reduced below twenty(20) PSI. 3. Class 3: Direct connection from public water supply main plus one or more of the following: elevated storage tanks; fire pumps taking suction from above-ground covered reservoirs or tanks; and pressure tanks (all storage facilities are filled or connected to public water only, the water in the tanks to be maintained in a potable condition). Otherwise, Class 3 systems are the same as class 1. Class 1, 2, and 3 systems will generally require minimum protection (approved DC or DCDA) to prevent stagnant waters from q back- flowing into the public potable water system. 4. Class 4: Directly supplied from public mains similar to classes 1 and 2, and with an p auxiliary supply su ly on or available to the premises; or an auxiliary supply may be located within seventeen hundred (1,700) feet of the pumper connection. Class 4 systems will normally require backflow protection at the service connection. The type (AG, RPA q or RPDA) will generally depend on the quality of the auxiliary supply. 5. Class 5: Directly supplied lied from public mains, and interconnected with auxiliary supplies, such as: um s takingsuction from reservoirs exposed to contamination, or rivers and p p ponds; driven wells, mills or other industrial water systems; or where antifreeze or other additives are used. Class 5 systems normally would need maximum protection (AG, RPA or RPDA) to protect the public water system. 6. Class 6: Combined industrial and fire protection systems supplied from the public water mains only, with or without gravity storage or pump suction tanks. Class 6 system Y protection would depend on the requirements of both industry and fire protection, and shall be determined by the Utility through a survey of the premises. C) Installation of Assembly: When a backflow prevention assembly is required for a water service connection supplying water only to a fire system, the assembly shall be installed on the service line in compliance with standard specifications adopted by the Town. F:Individual Filcs\sscng\Ordinanccs\Backflow Ordinance Update 2006 I(2).doc 8 DRAFT January uary 2007 1. Pressure losses across backflow prevention assemblies must be accommodated in the hydraulic design or redesign of the automatic fire sprinkler system. 2. Backflow prevention assemblies shall be installed above ground and as close to the service connection as possible on private property. When an assembly is installed in a mechanical room, sufficient drainage and space must be provided for the testing and maintenance of the backflow prevention assembly. 3. Installations shall meet current plumbing and fire codes as applicable in addition to the Utility's standard details. 4. Backflow prevention assemblies shall be installed in a horizontal or vertical position in accordance with their listing. 5. A 45-day installation permit is required for all backflow prevention assemblies. In addition, the installation must be inspected by the Utility and the assembly must be tested by a state certified backflow prevention tester before approval. The fire line contractor should make arrangements with a private backflow prevention assembly tester that is registered with the Utility. A certified backflow prevention tester will only have responsibility for the test and repair of the backflow prevention assembly and not any other component of the automatic fire sprinkler system unless that person is certified to perform testing on fire sprinkler systems. 6. Backflow prevention assemblies will be UL 1469 listed. Section X. Inspections A) At any time deemed necessary by the Utility, an inspection shall be conducted to determine whether any cross-connections or other hazard potentials exist and to determine compliance with this code. The customer's water system shall be available at all times during normal business hours for inspection and backflow prevention assembly testing by the Utility B) The Utility shall inspect all new sites, assembly installations and assembly relocations. C) A waived premises is property for which the Utility has determined there is currently no hazardp otentials and therefore does not require the use of a backflow prevention system. All waivedP remises shall be inspected periodically or when there has been a change in owner/tenant or a change in use. D) If a customer refuses to allow the Utility entry for inspection purposes during business hours, the Utility may discontinue water service, require backflow prevention or take any steps allowed by law to gain entry to the property. Section XI. Permit A) Installationp ermits for all backflow prevention assemblies shall be obtained from the Utility prior to installation. A separate permit shall be obtained for each required backflow prevention assembly to be installed, including replacement or relocation. B) It shall be the duty of the person performing the work authorized by the permit to notify the Utility, orally or in writing, that the work is ready for inspection. No inspection shall occur F:\Individual Filcs\sscng\Ordinanccs\Backflo%Ordinancc Updatc 2006 1(2).doc 9 DRAFT January 2007 sooner than twenty-four (24) hours from notification of the Utility. Any person requesting an inspection must have a good faith basis to believe that the work done will meet current Town codes and regulations. C) Any work preformed contrary to the provisions of the International Plumbing Code, Uniform Plumbing Code, or this Code, may be subject to a work stop order by the Utility or its authorized representative. Any persons engaged in or causing improper installation shall be informed in writing that work must cease until the Utility authorizes the continuation of the installation. D) Whenever ap ermit is issued in error, on the basis of incorrect information supplied, or in violation of any ordinance, regulation or any provision of the International Plumbing Code or this code, thep ermit may be revoked or suspended by the Utility upon written notice. Section XII. Discontinuance of water service A) Notwithstanding subsection B), the Utility may discontinue, without notice, water service to any customer when the Utility discovers any imminent risk for contamination of the public water systems by the customer's private plumbing systems. B) as Upon notice provided in subsection C), water service is subject to discontinuation if, any p of the following circumstances exists: 1. A customer has not installed a required backflow prevention method; 2. A backflow prevention method has been improperly tested, maintained, bypassed or removed; 3. An unprotected cross-connection exists in the customer's water system; or 4. Any other violation of this code except as provided in Section XIII (J). C) Prior to disconnecting any service connection, the Utility shall send a notice to the customer describing the condition precipitating disconnection and notifying the customer that the condition must be remedied by the compliance date. The compliance date shall not be less than fifteen (15) days from the date of the notice. If compliance has not been achieved by the (15) Y compliance date, water service shall be discontinued without further notice. D) Service connection to a fire sprinkler system shall not be subject to discontinuation under this section. If a condition which would otherwise result in discontinuation of water service, as described in subsection B), is not remedied within the time provided in the notice sent to the customer, discontinuation of the domestic water service, excluding the connection to the fire sprinkler system, may result. E) In the event water service is disconnected, the existing rate for re-connection will be charged to the customer. F:\Individual Filcs\sscng\Ordinanccs\Backflov►Ordinancc Updatc 2006 1(2).doc 1 0 DRAFT January 2007 Section XIII. Test, Notification, Maintenance, Records A) The test compliance date shall be established by the Utility. B) The Utility shall notify the customer at least 45 days before the compliance date for each backflow prevention assembly. C) The customer shall test each backflow prevention assembly at least once a year. Test intervals for any backflow prevention assembly may not exceed the compliance date established by the Utility. If an inactive water service is reactivated, the backflow prevention assembly associated with that service shall be tested if more than 12 months has passed since the last test. D) Compliance testing shall occur no more than 45 days prior to the test compliance date. E) The customer may request in writing a change of the test compliance date for any assembly. No compliance date may be changed to be more than 12 months after the most recent test. F) If any testing reveals the assembly to be defective or that it is in improper operating condition, the customer shall perform any necessary repairs, including replacement of the assembly, which will return the assembly to proper operating condition. If an assembly is replaced, relocated or repaired, a new test shall be performed on such assembly and submitted to the Utility. G) Each assembly shall also be tested after installation, relocation, repair, and at least annually thereafter. An assembly shall not be placed in service unless it has been tested and is functioning as designed. H) At least 15 days before the compliance date, if the Utility has not received the required annual test information or the backflow method/device does not meet applicable codes, the Utility shall provide a second notice in writing by certified mail. The Utility must receive the required annual test report by the compliance date. It will be the customer's responsibility to contact the Utility if the repair or replacement of an assembly cannot be completed by the compliance date. For commercial services with a backflow prevention assembly under repair or replacement, the Utility must receive a failed test form by the compliance date, describing the failure and corrective action. I) All irrigation services with a non-compliant backflow prevention assembly shall be disconnected by 5:00 pm on the day following the compliance date. J) For commercial services with a non-compliant backflow prevention assembly, the water service may not be disconnected, but the Utility will perform the required test(s)at the customer's expense. A hand delivered notice will be given to the customer to alert the customer that the Utility will be on site within four (4) days to complete the test(s), and that it will be necessary to turn off the water service during the test(s). Customers who are in non- F:\Individual Filcs\sscng\Ordinances\Back0oW Ordinance Update 2006 I(2).doc 11 DRAFT January uary 2007 M compliance will be subject to a fine as described in Section XVI—Penalties, in addition to all testing costs. The billing calculations and fees are listed in Section XV—Fees. K) The annual testing shall be performed by an individual certified to conduct such testing. The certification shall be approved by ADEQ. A list of certified testers registered with the Utility shall be maintained by the Utility and shall be available upon request. L) Test procedures shall be performed as required by the ADEQ as set forth in Chapter Nine of the Manual for Cross-Connection Control, Ninth Edition, or later editions. The tester shall provide a copy of the test report to the customer and to the Utility, and shall maintain a copy for their records. M) For all reduced pressure backflow prevention assemblies (RPA or RPDA), the Utility requires a minimum differential of 3.0 PSI between the number one check valve and the relief valve opening point. N) The customer shall maintain records, on forms approved by the Utility, of the results of all tests and all servicing, repairs, or replacements of the backflow prevention assembly. A copy of the records shall be provided to the Utility within five (5) days after completion of the activity for which the record is made. 0) Fire systems shall not be out of service for more than eight (8) consecutive hours due to testing, maintenance or repairs. The fire department shall be notified immediately of any changes in fire service status. P) The Utility may test any backflow prevention assembly at any time. Q) The Utility will notify the tester and/or the customer for corrections of incomplete and/or erroneous test forms.. Information on submitted test forms can only be changed or modified by the tester who has signed the form and is responsible for that test. R) Test equipment shall be maintained and calibrated annually by an agency approved by the Utility as required by the cross-connection control manual. A copy of the annual equipment calibration certificates shall be submitted to the Utility to maintain equipment registration. Test equipment for backflow prevention assemblies in the Utility's service area shall be registered with and approved by the Utility. Test equipment used on anything other than potable water backflow prevention assemblies shall not be used to test such assemblies and shall be identified as non-potable test equipment. S Testers shall register with the Utility if they are conducting backflow assembly testing in the Utility's service area. Testers shall submit a current copy of their certification or recertification upon registration. Testers, upon renewal of tester certification, shall be certified on all backflow prevention assemblies that may be used for service protection. The Utility registration issued to a backflow prevention assembly tester for testing backflow prevention assemblies in the Utility's service area may be revoked or suspended upon F:Undividual Filcs\sscng\Ordinanccs\Back0ow Ordinance Update 2006 1(2).doc 12 ti DRAFT January 2007 certification expiration or for improper testing, maintenance, reporting or other improper or unethical practices. Section XIV. Plan review prevention Backflow assemblies which will be installed shall be shown and specified on all water improvement plans. The Water Utility shall review and approve the intended p installation prior to establishment of water service. B) Backflowprevention revention assemblies must be installed as to meet the current set of standard details and specifications of the Utility (as shown in Appendix A) and be tested by a certified tester and shown to be operating correctly before the water service is activated. Section XV. Fees. A) A schedule of fees shall be kept by the Utility and available upon request. B) Any costs for time and materials incurred by the Utility as a result of non-compliance with Section XIII (J) shall be charged as part of the customer's water bill. C) a permit Thefee for issuing to install a backflow prevention assembly and inspecting the installation shall be the current rate in effect at the time the permit is issued. D) A reconnect fee maybe assessed when the customer fails to meet the requirements imposed bythis article and the Utility discontinues water service. The reconnect fee shall be the current rate in effect at the time the Utility disconnects the water service. E) fee may be established by Town Council resolution to recover the cost of the y cross- connection control program. Section XVI. Penalties. person, firm, corporation, partnership, enterprise or association, whether as principal, A) Any rp caner, agent, tenant, or otherwise who violates, disobeys, omits, refuses to comply with, or who resists the enforcement of any of the provisions o � g � of this code shall be subject to a civil U on a findingof a civil violation, the court shall impose a fine not to exceed two penalty. p hundred fifty dollars ($250.00). Each day a violation of any provision of this section continues to exist shall constitute a separate offense. B) Customers who are non-compliant with the testing and maintenance provisions of this code (Section XIII) shall be fined as follows: For the first offense there will be a $100.00 fine in addition to the testing costs. Customers who are in non-compliance for two consecutive compliance periods shall be subject to a$250.00 fine in addition to the testing costs. p F:\Individual Files\sseng\Ordinances\Backtlo'Ordinance Update 2006 I(2).doc 13 DRAFT January 2007 C) Notwithstanding subparagraph A) of this section, a second or subsequent violation of any of the provisions of this section within a two-year period shall be deemed a misdemeanor. Upon conviction of a misdemeanor, the defendant shall be sentenced pursuant of the provisions of the Oro Valley Town Code. Section XVII. Appeals An Administrative appeal may be requested whenever a violation or dispute of any of the requirements of this code is determined, whether during construction or at the plan review stage, and the applicant wishes to appeal the decision of the staff because of code interpretation, unreasonable hardship or other acceptable reasons. The appeal may be made to the Backflow Prevention and Cross Connection Hearing Committee as follows: A) The applicant shall file a written appeal with the Town Clerk on the forms provided by Oro Valley Water Utility within seven (7)business days of the violation or dispute. B) The appeal will be heard by the Hearing Committee within ten (10) business days, at a regular specified time. C) The Hearing Committee shall consist of the Oro Valley Water Utility Director, a member of the Oro Valley Water Utility Commission, and the Cross-Connection Control Specialist. Other technical persons may be added for a particular appeal, at the discretion of the Water Utility Director or designee. D) Adequate information shall be provided by the applicant in order to fully describe the conditions in question. E) The decision(s) reached by the Hearing Committee shall be considered final. F:\Individual Files\sscng\Ordinanccs\Backflow•Ordinance Update 2006 1(2).doc 14 mss.'► TOWN OF ORO VALLEY 2 COUNCIL COMMUNICATION STUDY SESSION: January 24, 2007 TO: HONORABLE MAYOR AND COUNCIL FROM: Philip C. Saletta, P.E., Water Utility Director Kevin McCaleb, Water Conservation Specialist SUBJECT: Proposed Pro d Changes to Water Code to Allow Rainwater Harvesting of Town Council, The Water Utility Director and the Water Conservation SUMMARY: At the request . • the issues pertainingto the use of passive and active rainwater harvesting for Oro Specialist have researched Valley Water Utility customers. At present, neither the Water Code nor the Building Code precludes customers from utilizing harvested water to supplement landscape needs. However, there is nothing in either Code that and the Utility Director have conducted The Water Conservation speaks directly to its usage. Specialist meetings with the Town Engineer and the Development Review Manager to discuss amendments to the g p tments to existin Code language to facilitate these installations. It is proposed that Building Code and/or add us g theIncase ofprivate residents, no changes to the existing Code need to be made. It is p proposed;osed; however, to place language in the Water Code that expressly states rainwater harvesting is ces. It is also proposed to place language in the Water Code that expressly states that allowed for private resider p p rainwater harvesting for commercial and master subdivision developments is allowed, but proposals must first be submitted and approved in accordance with TOV Drainage Criteria Manual. Currently Public Works is working to update the Drainage Criteria Manual and until that process is completed all commercial and master subdivision water harvesting projects will be reviewed on a case by case basis and must be approved by the Town Engineer. Allay active catchment systems installed must comply with all current Oro Valley Backflow 'n Code requirements. Proposed code change was submitted to the Water Utility Prevention and Building q p November 13, 2006, approved and recommended to be forwarded to Council for Commission on was pp consideration of adoption. Utilityis scheduled to review this document for consideration of The Stormwater 8 action on January 18, 2006 Legal has reviewed the proposed language of the code and their recommendations have been included. Staff will present council with a Power Point overview of these issues. Definitions: Rainwater Harvesting: Catching, storing,, diverting or directing water from roofs, parking areas, etc. during rain events. Active CatchmentSystems: A system employing a reservoir or other water storing apparatus to catch and store y rainwater for later use to supplement landscape irrigation, Passive System: Diverts or directs rainwater to appropriate locations and allowed to infiltrate naturally. No long term storage capabilities. FISCAL IMPACTS: There would be no fiscal impact to the Town as all costs would be borne by the developer or homeowner RECOMMENDATION: Staff recommends additions to the Town of Oro Valley Water Code as follows: Section 15-18-10 Residential Rainwater Harvesting: systems and passive rainwater harvestings stems are allowed for use by residents of Oro Valley provided that active systems meetq applicable the requirements of a licable parts of Oro Valley Town Code Chapter 6 (Building) as to construction methods and that any system that ties into or uses potable water must have backflow protection TOWN OF ORO VALLEY COUNCIL COMMUNICATION Page 2 of 2 installed and meet requirements of Article 15-23 of the Town of Oro Valley Water Code: Backflow Prevention and Cross-Connection Control Program. All collection vessels must be covered and mosquito proof. Inp assive systems all standing water must infiltrate into the soil within 12 hours.No ponding is allowed. Section 15-18-11 Rainwater Harvesting for Commercial and Master Subdivision Development Projects: Active and passive rainwater harvesting systems are allowed for use by these projects. All systems must first be approved under The Drainage Review Criteria Manual and the Town Engineer prior to installation and meet current Oro Valley Town Code Chapter 6 (Building) as to construction methods. Any system that ties into or usesp otable water must have backflow protection installed and meet requirements of Article 15-23 of the Town of Oro Valley Water Code: Backflow Prevention and Cross-Connection Control Program. All collection vessels must be covered and mosquito proof. For passive systems all standing water must infiltrate into the soil within 12 hours. No ponding is allowed. Attachments: 2006 International Residential Code; Section R105: Permits //‘., ,fr(4-1 - Water Conservation S e ecialist Water Utili Director Town Manager 1 ADMINISTRATION SECTION R105 4. Steam,hot or chilled water piping within any heating or PERMITS cooling equipment regulated by this code. R105.1 Required.Any owner or authorized agent who intends 5. Replacement of any minor part that does not alter to construct, enlarge, alter, repair, move, demolish or change approval of equipment or make such equipment unsafe. the occupancy of a building or structure, or to erect, install, 6. Portable evaporative coolers. enlarge,alter,repair,remove,convert or replace any electrical, p gas,mechanical or plumbing system,the installation of which 7. Self-contained refrigeration systems containing 10 is regulated by this code,or to cause any such work to be done, pounds(4.54 kg)or less of refrigerant or that are actuated shall first make application to the building official and obtain by motors of 1 horsepower(746 W)or less. the required permit. 8. Portable-fuel-cell appliances that are not connected to a R105.2 Work exempt from permit. Permits shall not be fixed piping system and are not interconnected to a required for the following. Exemption from permit require- power grid. ments of this code shall not be deemed to grant authorization for any work to be done in any manner in violation of the provi- The stopping of leaks in drains,water,soil,waste or vent pipe; provided,however,that if any concealed trap,drainpipe,water, sions of this code or any other laws or ordinances of this jurisdiction. soil,waste or vent pipe becomes defective and it becomes nec- essary to remove and replace the same with new material,such Building: work shall be considered as new work and a permit shall be 1. One-story detached accessory structures used as tool and obtained and inspection made as provided in this code. storage sheds,playhouses and similar uses,provided the The clearing of stoppages or the repairing of leaks in pipes, floor area does not exceed 120 square feet(11.15 m'). valves or fixtures, and the removal and reinstallation of water 2. Fences not over 6 feet(1829 mm)high. closets, provided such repairs do not involve or require the 3. Retaining walls that are not over 4 feet (1219 mm) in replacement or rearrangement of valves,pipes or fixtures. height measured from the bottom of the footing to the top R105.2.1 Emergency repairs. Where equipment replace- of the wall,unless supporting a surcharge. ments and repairs must be performed in an emergency situa- il 4. Water tanks supported directly upon grade if the capacity tion, the permit application shall be submitted within the does not exceed 5,000 gallons(18 927 L)and the ratio of next working business day to the building official. height to diameter or width does not exceed 2 to 1. R105.2.2 Repairs. Application or notice to the building 5. Sidewalks and driveways. official is not required for ordinary repairs to structures, 6. Painting, papering, tiling, carpeting, cabinets, counter replacement of lamps or the connection of approved porta- tops and similar finish work. ble electrical equipment to approved permanently installed receptacles.Such repairs shall not include the cutting away 7. Prefabricated swimming pools that are less than 24 of any wall,partition or portion thereof,the removal or cut- inches (610 mm)deep. ting of any structural beam or load-bearing support, or the 8. Swings and other playground equipment. removal or change of any required means of egress,or rear- • 9. Window awnings supported by an exterior wall which rangement of parts of a structure affecting the egress do not project more than 54 inches (1372 mm)from the requirements;nor shall ordinary repairs include addition to, exterior wall and do not require additional support. alteration of,replacement or relocation of any water supply, sewer,drainage,drain leader,gas,soil,waste,vent or simi- Electrical: lar piping, electric wiring or mechanical or other work Repairs and maintenance:A permit shall not be required for affecting public health or general safety. minor repair work,including the replacement of lamps or the R105.2.3 Public service agencies. A permit shall not be connection of approved portable electrical equipment to required for the installation, alteration or repair of genera- approved permanently installed receptacles. tion, transmission, distribution, metering or other related Gas: equipment that is under the ownership and control of public 1. Portable heating,cooking or clothes drying appliances. service agencies by established right. 2. Replacement of any minor part that does not alter R105.3 Application for permit.To obtain a permit,the appli- approval of equipment or make such equipment unsafe. cant shall first file an application therefor in writing on a form 3. Portable-fuel-cell aappliances that are not connected to a furnished by the department of building safety for that purpose. pp Such application shall: fixed piping system and are not interconnected to a power grid. 1. Identify and describe the work to be covered by the per- Mechanical: mit for which application is made. 1. Portable heating appliances. 2. Describe the land on which the proposed work is to be done by legal description, street address or similar 2. Portable ventilation appliances. description that will readily identify and definitely locate 3. Portable cooling units. the proposed building or work. 2006 INTERNATIONAL RESIDENTIAL CODE® 3 r TOWN OF ORO VALLEY 2 A COUNCIL COMMUNICATION STUDY SESSION: January 24, 2007 TO: HONORABLE MAYOR AND COUNCIL FROM: Philip C. Saletta, P.E., Water Utility Director Kevin McCaleb, Water Conservation Specialist SUBJECT: Proposed Changes to Water Code to Allow Graywater Use SUMMARY: At the request of Town Council, the Water Utility Director and the Water Conservation q Specialist have researched the issues pertaining to the use of graywater by Oro Valley Water Utility customers. Graywater is defined as catching,, storing, diverting or directing water from non-sanitary appliances for use in y landscape irrigation systems. Kitchen sinks, toilets, and dishwashers are not allowed to be used for graywater g systems. Atresent, neither the Water Code nor the Building Code precludes customers from utilizing graywater to p supplement landscape needs. However, there is nothing in either code that speaks directly to its usage. The p Water Conservation Specialist and the Utility Director have conducted meetings with the Building Safety Administrator and the Chief Building Inspector to discuss amendments to the Building Code and/or adjustments to existing Code language to facilitate graywater installations. It is proposed that for private residences, no changes to the existing Code need to be made. Changes are proposed; however, to place language in the Water Code that expressly states that graywater usage is allowed for private residences and that compliance with all p y �' y`'� Arizona Department of Environmental Quality (ADEQ) guidelines must be met. All systems would require compliance with Town of Oro ValleyBackflow Prevention Code. Proposed code changes were submitted to the p Water UtilityCommission on November 13, 2006 and were approved to be forwarded to Council for The. consideration of adop proposed tionlanguage for the code changes has been reviewed by legal and their recommendations are included. Staff will present to council a Power Point Presentation outlining these issues. FISCAL IMPACTS: There will be no fiscal impact to the Town as all costs for the construction and operation of graywater systems would be borne by the homeowner RECOMMENDATION: Staff recommends an addition to the Town of Oro Valley Water Code as follows: Section 15-18-12 Graywater Use: Graywater use is allowed for use by Oro Valley Water Utility customers provided that allguidelines imposed by ADEQ are met and that design, construction and operation of system p meet requirements of the Oro Valley Town Code Chapter 6 (Building). All graywater systems must have backflowp rotection installed and must meet requirements of Article 15-23 of the Town of Oro Valley Water Code: Backflow Prevention and Cross- Connection Control Program. Attachments: 2003 edition International Plumbing Code; Appendix C: Graywater Recycling Systems ( z,, _ _, ll L'. ii, ls' Vat onservation S cialist j / , .7 0 ieLje ?Lter Utili i irector (244/2/./- age.,,,,/,-- Town Manager y3y 7 APPENDIX C GRAY WATER RECYCLING SYSTEMS water or waste to discharge to the sanitary drainage sys- tem 'scode requires all plumbing fixtures that receive Section 301.3 should be revised to read as Note:Sectionh301.3 of this 9 w or the utilization of a gray water recycling system, ofthe structure.In order to alio for z follows: . appurtenances and appliances used to receive or dis- urten drainage system.All plumbing fixtures,drains, app dra Y the building or premises,in with charge Connectionswasteto g directly connected to the drainage system of remise for in Chapter accordance char e li uid wastes or sewage shall be d Y construed toprevent indirect waste systems provided g q ' ents of this code.This section shall not be con required to discharge to the sanitary the requirements sinks shall not be q 8. • showers,lavatories,clothes washers and laundryin system. Exception.Bathtubs, discharge to an approved gray water recycling drainage system where such fixtures g 1 I water shall be supplied as a Potable C101.7 Makeup water. waters stem.The potable C101 source of makeup water for the gray Y CYCLING SYSTEMS shall be GRAY WATER RE water supply protected against backflow in accordance shall receive 608. There shall be a full-open valve on the „�. C101. 1 General. Gray water recycling systems with Section only of bathtubs, showers, lavatories, makeup water supply line to the reservoir. #,;4 the waste dischargeny Recycled gray water shall y The collection reservoir shall be equipped clothes washers and laundry sinks. urinals that are C 101.8 Overflow. shin water closets and pipe of the same diameter as the influent pipe ��� locatedbe utilized only for flushing graywater recycling system. with an overflowp p ,,,,,a as theThe overflow shall be directly connected to in the same building C 101.2 through for the gray water. ,�..« Such systems shall comply with Sectionsthe sanitary drainage system. of y C101.12. C101.9 Drain.A drain shall be located at the lowest point of ,�d connected to the • water systems shall be permitted t o becollection reservoir and shall be directly connected Exception. Gray Y the when specific approval is given by the au- a e system.The drain shall be the same diameter I used for irrigation wh p shall be designed sanitary drain g y Such re aired by Section C101.8 and shall be as y having jurisdiction. systemsas the overflow pipeq as required by Section 105. provided with afull-open valve. ,�u Definition. followingterm shall have the meaning required.The reservoir shall be provided with a shown herein. The C101.10 Vent shown vent sized in accordance with Chapter 9 based on the size of the ER. Waste water discharged from lavatories, reservoir influent pipe. GRAY WAT sinks. washers and laundry The gray water shall be dyed blue or green d; bathtubs,showers, clothesC101.11 Coloring. plied • waste and vent piping associ- food grade vegetable dye before such water is supplied aced with Installation.All drain, installed in full with a graywater recycling systems shall beto the fixtures. n piping and ated this code. C101.12 Identification.All gray water distributio p p g compliance with nonpotable water. ui�ee • water shall be collected in an reservoirs shall be identified as containing p approv Reservoir. Gray nonabsorbent and n shall be in accordance with Section 608.8. approved reservoir constructed of durable, Piping identification corrosion-resistant materials. The reservoir shall be a closed enings shall be provided to al- and gas-tight vessel.Access o p servoir interior.The hold- penin low low inspection and cleaning of the reo f twice the volume ca acity of the reservoir shall be a minimum re uire- of water required to meet the daily flus ing q ments of the fixtures supplied with gray water,but not less than 50 gallons(189 L). The reservoir shall be sized to limit the re- tention time of gray water to 72 hours maximum. C101.5 Filtration. Graywater entering the reservoir shall pass through an approved filter such as a media, sand or diatomaceous earth filter. C101.6 Disinfection.Gray water shall be disinfected by an ap- s one or more disinfectants such as proved method tea temploy chlorine,iodine or ozone. 103 2003 INTERNATIONAL PLUMBING CODE® TOWN OF ORO VALLEY COUNCIL COMMUNICATION STUDY SESSION: January 24, 2007 TO: HONORABLE MAYOR AND COUNCIL FROM: Philip C. Saletta, P.E., Water Utility Director Kevin McCaleb, Water Conservation Specialist SUBJECT: Changes to building in code to mandate installation of electrical outlets for point of service hot water systems. SUMMARY: At the request of Town Council, the Water Utility Director and the Water Conservation of Hot Water Recirculation Systems (Point of Service) and have found Specialist have researched the issue conservation tool for use bycustomers of Oro Valley Water. To make installations them to be a viable water • Valleywater customers, the Water Conservation Specialist and the Utility easier and less costly for Oro with BuildingSafetyto discuss amendments to the building code and or Director have conducted meetings adjustments to existing codelanguage lan ua e to facilitate these installations. It was proposed that home builders would be mandated to install a minimum of two switch controlled outlets for use with point of service systems. One kitchen sink, with a 2nd one located under the private or owner's bathroom lavatory would be located under the sink; or under the lavatory sink in the main or common bath. These outlets require a 15 ampere designated was directed circuit. The Water Conservation Specialistby the Chief Building Inspector as to the appropriate • this proposed change would appear and also the language to be used. This section of the building code where p p Proposed change was submitted to andapprovedby the Water Utility Commission on November 13, 2008 to be forwarded to Council for considerationadoption.of ado tionLanguage for the code was reviewed by legal and their g included. Staff will present a Power Point Presentation outlining these issues. recommendations are Definitions: Point of Service Hot Water RecirculationSystem: point A of service hot water recirculation system is • waitingfor water to reach a required temperature for personal use. The designed to reduce or stop waste while The pumpattaches to the existing plumbing beneath either the farthest systems require no additional plumbing. used. Point of service systems are "on demand" requiring only a switch fixture or the one most frequently y controlled outlet be installed at each location. Optional timers, programmable and remote controlled switches may be installed for added convenience. Designated Circuit: An electrical circuit specifically installed and identified for a single use Switch controlled outlet: An electrical outlet installed with a manual power switch to control electricity to it. FISCAL IMPACTS: Cost of materials and installation is under$300.00 per home which will be borne by the home builder. There is no cost to the Town. RECOMMENDATION: Staff recommends an addition to the 2006 International Residential Building code be . made as follows: ' ' s. One switch controlled wall receptacle outlet shall be placed under the Section # E3801.12 Additional Outlets. kitchen sink countertop and one shall be located under the lavatory sink countertop in the owner,s bathroom main or common bathroom if a bathroom is not designated for the owner) (such outlet may be installed in the p Outlets to be installed shall be on a minimum 15 ampere designated branch circuit in accordance with Section # E3602.3, as specified for utilization equipment. TOWN OF ORO VALLEY COUNCIL COMMUNICATION Page 2 of 2 ig(r Water Conservation S 6-cialist Water Util0 Director Town Manager 3 TOWN OF ORO VALLEY COUNCIL COMMUNICATION STUDY SESSION: January 24, 2007 TO. • HONORABLE MAYOR & COUNCIL MEMBERS FROM: Shirley Seng,Water Utility Administrator Philip C. Saletta,Water Utility Director SUBJECT: Impact Fees Analysis SUMMARY: During the water rates analysis last year, the Water Utility Commission and the Town Council recommended two impact fees. On October 18, 2006, that staff review the Utility'sCouncil approved a contract with Red p Oak Consulting, a division vision of Malcolm Pirnie, Inc. to perform an analysis of the Potable Water Development Impact Fees and the Alternative Water Resource Development Fees. The presentation at this StudySession will include an overview of the work performed to date including the used to analyze the impact fees. Staff will also present the preliminary assumptions and methodologiesY p It is im portant to stress that these findings are preliminary and could change based findings of the analysis. on the outcome of research that has not yet been completed. public input will be available throughout the impact fee analysis process. Utility Staff have Opportunities for p g already met with members of the Southern Arizona Home Builders Association (SAHBA) to let them know about the potential increase impact fees, proposed to existing process and schedule. We have also scheduled a Public Meeting for January 30, 2007 that will be held in the Council Chambers. Notices advertising the mailed to all developers, contractors, engineers.Public Meeting will be and architects contained within the p " Utility, Public Works and Planning & Zoning Departments. There will also be data bases of the Water " ' input at the Water UtilityCommission meetings in February and March, a Public opportunities for public p _ . the Town Council meetinginJune where adoption of the revised impact fees will be Hearin in May and at " Hearing proposed impact fees are adopted by the Council in June, they would become effective in considered. If the p p September of 2007. FISCAL IMPACT: If adopted, these increased fees willprovide impact revenue to repay debt on growth related infrastructure for potable the water distribution system and the development of renewable water systems. \.. p Water Utility A ' 'strator 9 r `/ (V) / 1 IWa r Utiliirector ti Ce-'114.1_4,4 Town Manager /4111\ 4'� Town Council Study Session Town Code Revisions Chapter 15 Water Code Article 23 - Backflow Prevention & Cross-Connection Control January 24, 2007 Overview • Existing ordinance • Proposed revisions — Fire systems — Reclaimed water & graywater use — Notifications — Fees — Language • Process and Schedule 44k P‘44111611111a*****a-----L_ 1 • Backflow is a unwanted reversal of flow in a distribution system. • The state (ADEQ) requires all water utilities to have a � . - Backflow Prevention Program. • The program enforces compliance with backflow prevention requirements. Zt � Existing Ordinance • Original ordinance adopted in 1998 in accordance with state statutes • Water provider's responsibility to prevent contamination of public water system. • Responsibility begins at the source and includes entire distribution system and ends at the user connection. • Water provider also responsible for enforcing laws, rules & regulations to full designated responsibilities. Nibamami 2 Proposed Revisions Fire Systems • ADEQ exempts Class 1 and 2 fire systems • House Bill 2455 allows water purveyors to require Backflow Prevention Assemblies on Class 1 and 2 fire systems • Class 1- direct connections from public water mains only; no pumps, tanks, or reservoirs; no physical connection from other water supplies; no antifreeze or other additives. • Class 2 — same as Class 1, except booster pumps may be installed. �► � Warnwu must obtain permission from Fire M Proposed Revisions Reclaimed and Graywater — Backflow prevention assemblies are required on the potable water connection to any area or premise using reclaimed or graywater. — Reclaimed water means water which, as a result of treatment of wastewater, is suitable for a direct beneficial use but is not safe for human consumption. — Graywater is untreated wastewater from bathtubs, showers, wash basins, washing machines, and laundry tubs. It does not include wastewater from toilets, urinals, kitchen sinks, and dishwashers. It" 'IC Nit 3 Proposed Revisions 1. Customer Test Notification. ADEQ, R18-4-115(F) Each backflow prevention assembly required by this Section shall be tested at least annually. 2. OVWU's Test Notification Policy • Test compliance date shall be set by the Utility. • Compliance date is the 20th of each month. • First customer notice is a 45-day notice. • If the Utility has not received a copy of the required test within 15 days of the compliance date,the Utility will provide a second notice by certified mail. • If the Utility has not received the required test for an irrigation system,the service will be locked off the day after the compliance date. • Commercial accounts will not be locked off after the compliance date. A 4-day notice will be hand-carried to the establishment notifying the water user that the OVWU will be on site within 4 days to perform the required testing. Z � t diet Proposed Revisions OVWU's Testing Fees — All fees assessed as a result of enforcement will be the current fees on file with the OVWU. — Any testing costs incurred as a result of enforcement shall consist of equipment, materials, and labor costs to include benefits. If costs are incurred after the Utility's regular business hours, over time rates will apply. — Commercial customers who are in non- compliance for testing requirements will be subject to a $100 fine in addition to testing costs. The second offense will be subject to a $250 fine. Z � t 4111k 4 Proposed Revisions Language "clean-up" — Original ordinance needed updated language — Legal department reviewed and modified language. let Process and Schedule • Revisions reviewed by testers and other local water providers • Water Utility Commission approved on 1/8/07 • Town Council Study Session 1/24/07 • Public Hearing — March 2007 • Town Council request for adoption N Mkt 5 �P,LLEYq,Q�� Proposed Town Code Changes °�° 02� Water Conservation Measures Mayor and Council Study Session -0 January 24, 2007 j x * * ""TY *AY —49v Proposed Changes to Town Codes Chapter 15 Water Code • Allowing the use of graywater for residential landscape irrigation applications • Allowing the use of passive and active rainwater collection systems for commercial and residential landscape Irrigation applications • Modifications to existing backflow code Chapter 6 Building Code • Mandating the installation of at least two switchable outlets to facilitate residential installation of point of service hot water recirculation systems N lek 1 G RAYWATE R • Reuse of water that would normally drain to the sanitary sewer system or septic system from — sinks — showers & tubs —washing machines • Water from toilets, kitchen sinks, dishwashers, etc. must still drain to sanitary sewer or septic system N '01146haim GRAYWATER REUSE • Current OV Town Code does not preclude or prohibit graywater reuse provided the system: - Follows International Plumbing Code - Follows ADEQ Guidelines - Has proper backflow prevention in place • Currently other Southern Arizona communities allow for installation of graywater systems but do not require it ADEQ Regulations — Avoid human contact — Used on same property — Can not irrigate food plants — Can have no standing water — Back up connection to sanitary sewer or septic required — Storage tanks (reservoirs) must be covered —protect from mosquitoes, etc. — Tanks must be located outside floodway— protect washes and riparian areas — Minimum of 5 feet above ground water table — Cannot change the design or capacity of on-site septic system — No cross connections — Pipe must be clearly labeled graywater — No diaper or infectious garments in wash water to graywater system — No hazardous chemicals, oil &grease to graywater — Surfac- Irrigation by flood or drip only—no spray or — Not to be sed for •. -, � .'rrigation Concerns With Graywater Use • Concern for water quality — soap, hair, blood, other fluids, chemicals, medicines, etc. • Potential risks for public health and safety • Protection of potable system — backflow prevention required • Reduced flow to sanitary sewer • Enforcement of ADEQ Regulations and OV Code • Town or Water Utility Liabilities • HOA covenants, current platting, etc. N 4411 3 Code Language • Section 15-18-12 Graywater Use: Graywater use is allowed for use by Oro Valley Water Utility customers provided that all guidelines imposed by ADEQ are met and that design, construction and operation of systems meet requirements of the Oro Valley Town Code Chapter 6 (Building). All graywater systems must have backflow protection installed and must meet requirements of Article 15-23 of the Town of Oro Valley Water Code: Backflow Prevention and Cross- Connection Control Program. Process and Schedule • Amend TOV Water Code language specifically allowing residential sites the option to install graywater systems as per TOV and ADEQ guidelines and regulations • Worked closely with and Code reviewed by Building Safety • Presented to Water Utility Commission and recommended to forward to Council 11-13-07 • Reviewed by SAH BA 1-09-07 • Present for public hearing and to Town Council for approval in March 2007 4 RAINWATER HARVESTING • Nothing in OV Town Code precludes or prohibits rainwater harvesting for use in landscaping for either commercial or residential customers • Most Arizona communities allow for installation but do not require it Passive and Active Systems • Passive System: Diverts or directs rainwater runoff to appropriate locations where it is collected and allowed to infiltrate the soil naturally. No long-term storage capabilities. • Active System: Employs a reservoir or other water storing apparatus to catch and store rainwater runoff for later use with conventional landscape irrigation systems. Typically involves electric pumps and valves. Rainwater Harvesting Concerns • Minimal risks to water quality • Passive harvesting: No standing water for more than 12 hours for mosquito control • Active system: Construction of reservoirs are covered in Building Code. Backflow prevention required • For commercial applications both Passive and Active system designs must be approved according to TOV Drainage Criteria Manual and the Town Engineer • Underground storage systems must be covered • l*Accomi*antifilLia Proposed Code Language • Section 15-18-10 Residential Rainwater Harvesting: Rainwater Harvesting is defined as catching, storing, diverting or directing water from roofs, parking areas, etc. during rain events. Active and passive rainwater harvesting systems are allowed for use by residents of Oro Valley provided that active systems meet current requirements of applicable parts of Oro Valley Town Code Chapter 6 (Building) as to construction methods and that any system that ties into or uses potable water must have backflow protection installed and meet requirements of Article 15-23 of the Town of Oro Valley Water Code: Backflow Prevention and Cross- Connection Control Program. All collection vessels must be covered and mosquito proof. In passive systems all standing water must infiltrate into the soil within 12 hours. No ponding is allowed. t Ilk 6 Proposed language cont. • Section# 15-18-11 Rainwater Harvesting for Commercial and Master Subdivision Development Projects: Active and passive rainwater harvesting systems are allowed for use by these projects. All systems must first be approved under the Drainage Review Criteria Manual and the Town Engineer prior to installation and meet current Oro Valley Town Code Chapter 6 (Building) as to construction methods. Any system that ties into or uses potable water must have backflow protection installed and meet requirements of Article 15-23 of the Town of Oro Valley Water Code: Backflow Prevention and Cross- Connection Control Program. All collection vessels must be covered and mosquito proof. For passive systems all standing water must infiltrate into the soil within 12 hours. No ponding is allowed. F‘41416iiiaimma Process and Schedule • Amend TOV Water Code language to specifically allow commercial and residential sites to have the option to install either passive or active rain water harvesting systems in accordance with TOV regulations • Work closely with Building Safety and Public Works to develop potential changes, if necessary, to Drainage Criteria Manual. • Recommended to forward to Council by Water Utility Commission 11-13-07 • Recommended to forward to Council by Stormwater Utility Commission 1-18-07 with definitions included. • Reviewed by SAHBA 1-09-07 • Present for public hearing and to Town Council for approval March 2007 AP 7 Hot water recirculation systems Two Types of Systems: 1 ) Continual operation system: Constantly monitors temperature in hot water piping using a thermostat. Cycles cooler water back into hot water tank via a return line to maintain parameters of temperature settings. Timers can be used to reduce hours of operation. vic lek 2) Point of Service System: A simple "on demand pumping" system that is readily installed on existing piping. Recirculation system uses the cold supply side piping for return to hot water tank. Timers may be installed to reduce operation times. Zt � 8 Current Code • Installation of either type of system is not prohibited for Oro Valley residents and adherence to code is regulated by building safety personnel • The Water Utility currently encourages customers to install point of service type systems if they desire a recirculation system Ilk Process and Schedule • Amend TOV Building Code to mandate builders to install a minimum of two switch controlled outlets for use with point of service systems. One to be located under the kitchen sink, with a 2nd one located under the private or owner's bathroom lavatory sink; or under the lavatory sink in the main or common bath • Worked closely with Building Safety on Code language • Recommended to forward to Council by Water Utility Commission 11-13-07 • Reviewed by SAHBA 1-09-07 • Present to Council for public hearing and adoption March AlCr7N lek 9 , . 4._ a.----) .14.1 "1r N Ilk P'114ki 447... Questions "t N 414k fliiimisswiti 10 _,p_LEY,iNe qtr s;f Town of OValley A well-planned community balancing the needs of today and tomorrow Water Utility Impact Fee Analysis N " .-•• RFLWA K • ••• CONSULTING ©2007 Malcolm Pirnie,Inc.All Rights Reserved .o s or M.cuM IRrIC Introduction • Water Utility responsible to look into water impact fees — Water Utility Commission recommended (5/5/06) — Council provided direction at the last rate review(5/17/06) — Council approval of contract with Red Oak Consulting (10/18/06) • Groundwater Supply — 1980 Groundwater Code and Assured Water Supply — Safe Yield by 2025 — Sustainable Groundwater Production • Incorporates use of Renewable Water — Central Arizona Project — Reclaimed Water • Based on the approved Potable Water Master Plan and General Plan Area • Balances Future Costs between Existing Customers and New Development '‘11Nikimmissam 1 Water Use and Sources ofSupply 20,000 18,000 3rd Phase CAP Deliveries ,,,,i 2nd Phase CAP 17,000 AF 16,000 Deliveries 1st Phase CAP Deliveries #1g Protected 14,000 Go Demand - 2nd Phase Reclaimed 11 500 AF a 12000{ Water Deliveries a N , 1sW'arReclaimed Alternative Water Water Deliveries O CAP 10,000, ®ReResources w - Gaimed j8,000 ■Groundwater 6,000 5,500 AF 4.000 2,000 Sustainable Groundwater Production ,LO ,LO y0 ,LO ti0 ry0 ��ti rLO� LOQ Year NIC Overview • Existing Fees — Potable Water System Development Fee(PWSDF) — Alternative Water Resources Development Fee(AWRDF) • Impact Fee Methodologies • PWSDF — Background and Purpose — Selected Methodology — Proposed Fee • AWRDF — Background and Purpose — Selected Methodology — Proposed Fee — Relationship to the Groundwater Preservation Fee • Next Steps— Process and Schedule 'et" 2 Existing Water Utility Impact Fees Potable Water System Fee Alternative Water Resources Fee „mak rie, nb u .77,..2"-.0- What is a Potable Water System Development Fee? • An impact fee to recover proportionate costs for potable water infrastructure required to serve new customers. What is an Alternative Water Resources Fee? • An impact fee to recover proportionate costs for the renewable water supplies (reclaimed and CAP) and infrastructure to serve new customers. N 11 3 Basis of the Potable Water System Fee versus the Alternative Water Resources Fee Potable Water Alternative Water Resources System Development Fee Development Fee Fee Based on water system Based on raw water supply,transmission and Basis infrastructure capital costs treatment infrastructure capital costs required for required for new new development. development. Water Potable Water Water Raw System Pumping Treatment Water and Distribution Supply Infrastructure Wells,Transmission Mains, Components - Booster Stations,Treated Clarification,Filtration, Intakes,Pumps,Canals, Water Storage,Pressure and Treatment of Aqueducts and Water Reducing Valves,etc. Reclaimed and CAP Rights Water Existing • Potable Water System Development Fee —New customers only —Growth related potable water infrastructure —Current fee: $1,774 for 5/8"water meter(Adopted 2000) • Alternative Water Resource Development Fee —New customers only —Growth related water resource infrastructure • CAP and Reclaimed Water —Current fee: $300 for 5/8"water meter(Adopted 1996) 4 Methodologies Impact Fee Three Standard Methodologies • Equity Buy-In • Incremental • Hybrid • Cash Flow Test — Used in this analysis to test revenues and expenses Nikhaassaiii Arizona Revised Statutes — Synopsis of Impact Fee Requirements • Development fees in Arizona must meet the requirements of the Arizona Revised Statutes (ARS 9-463.05), which outline a number of requirements for determination and assessment of development impact fees. In general, the following standards must be met: — Fees must be used for projects that benefit a new development. — There must be accountability in the uses of fee revenue to ensure that funds are only used for allowable capital projects. — Fees and schedules must be uniform. — Cities and Towns must demonstrate a reasonable and proportionate relationship between fee amounts and growth-related capital improvements funded with fee revenue. — Developers must be given credit for related exactions or other dedications. — Fees must be paid at the time of issuance of building permits. N 5 PotableWater System Development Fee pwSDF _. .„..,,,;*-- : „...s.„,.„,,,,,,i --,,,,,,,,, ...._.. ,,,;.,!, ,,,,,,p,;,,,,-,..,,,,,,„.„4— -',--,f,‘,-' er,-:. , '---kf', ,::::::;:cii7:,-;:,,,*$ viglih, ' N *t ''°Illikilliorwal,,,w.....,_ , PWSDF ,, , :-.,,,, ,,:-.44,:t0.0,4,„1 ,,„-„,„,„,„„„), and„,,,,,,,,,_, ,. ,,,,,...11Z-",*-”'Tit „,.„,,,- '; la • New customers only. 4 • Potable water infrastructure will need to =jeroi*"''''r -t: mill - ''' -42 ;:rilli' '' - ' ' ' ' be built to meet the needs of growth. ..:,,,..7. ,,, ..., _... ,,,._ ,,,,!I • Current fee: $1,774 for 5/8"water ` meter. �E • Current fee adopted in year 2000. .1,....,,:,i,..::.,:: �a s �;: ♦i !;t�` laii :_ A A b.911 .... �� 4L. R a.-'A �'�fpr✓�: • Over the last 6 years,there has been a «,�s,:.,ww y�k . . . consistent level of service for existing .� and new customers but significant .�2 a: s infrastructure cost increases. • Water consumption patterns by customer class have chan ed over the `#y .: g last 6 years. „ ':,4;1'4'..;.*/ ..1 t,:,,,'!„.4., ':....*,,, .., ,IlL ''''A; 't‘i. 4:ril.41, ti: N 4lit r41#4-4';, iki--. ' %&pro.... 6 PWSDF Selected Methodology • Incremental Cost Method • Potable Water System Master Plan — Specifically for growth-related, in-Town water infrastructure — $15.4 million for expansion projects over the next 10 years — 6,000 EDUs over the next 10 years — $2,567 per EDU • Proposed Fee: $2,567 for a new single family residential connection (%-inch meter). • Fees will need to be re-evaluated prior to the end of the 10-year period. PWSDF — Proposed • Proposed Fee: $2,567 for a new single family residential connection (%-inch meter). • Demand Adjustments for Non-Residential Customer Classes: — $2,567—single family residential (%-inch meter). • A$793 increase compared to the existing$1,774 fee. — $4,110—commercial and industrial (%-inch meter). • A$40 increase compared to the existing$4,080 fee. — $4,360—non-turf irrigation (%-inch meter). • A$1,167 increase compared to the existing$3,193 fee. • Proposed Fee satisfies the Cash Flow Test • Based upon 600 EDUs per year, financing is not required. • Fees for connections larger than 5 -inch are adjusted based on their relative meter capacities, as defined by AWWA industry- standard ratios. 7 Alternative Water Resources Development Fee AWRDF zINA Igo 3 AWRDF — Background and • New customers only • Growth related water resource infrastructure(CAP and Reclaimed Water) • Current fee is$300 for 5/8"water meter. • Current fee adopted in year 1996. • Major water resource acquisition has occurred over the last 10 years. • Water treatment and delivery systems will use more sophisticated technology. ......� • Water consumption patterns by customer class have changed over the last 10 �'~"" . years. _. 40t 8 Water Use and Sources of Supply 20,000 18,00° 3rd Phase CAP Delivers 2nd Phase CAP 17,000 AF 16.000 Deliveries 1st Phase CAP ;. Deliveriesv. #x PmddLL 14,000 f 2nd Phase Reclaimed 11,500 AF a 12,000 Water Deliveries a 1st Phase Reclaimed Alternative Water 2 10,000 WaterDelivenes OCAP OReclaimed Resources d j 8.000 ■Groundwater 6000 5,500 AF 4,000 2°°° Sustainable Groundwater Production ° \° �0 r10 10 r10 r10 r10 r10 r10 r10 'O r10 107 ,101' L01 Year /1111t AWRD — Selected Methodology • Hybrid Method — Determine total capital costs required ' fvf: R to develop alternative water resources (CAP and Reclaimed) — Determine allocation of costs between existing and future customers. — Determine allocation of costs to the AWRD fee — Determine the allocation of costs to the Groundwater Preservation Fee (GPF). • This analysis determines the GPF revenue requirements only, not the GPF rate. 9 Cost Allocations • GPF AWRDF • Existing R New Customers If Customers (Rate-payer) (Developer) 1 V. - xv‘s - Alternative Water Resources Supply 11,500 AF • Future Customers IF Existing Customers • 7,000 AF • 4,500 AF • it, la 7,000 AF 4,500 AF CAP and Reclaimed CAP and Reclaimed z � t Vtt II a a a...a.. 10 AWRDF — Total Capital Costs for Alternative Water Resources Project Cost Water Supplied Reclaimed $ 19,500,000 2,500 AF CAP $ 63,100,000 9,000 AF TOTAL $ 82,600,000 11,500 AF Z � t � F‘Nhimaise Financing Costs • "When long-term financing is required to provide funding for the capital improvement plan, all or a portion of the financing cost (i.e., interest on debt and debt issuance cost) may be included in the incremental cost for [fee] determination purposes." -AWWA, M1 Manual of Water Supply Practices 11 AWRDF — CAP and Reclaimed Capital and Financing Costs $ 24.0 million - Northwest WTP $ 32.3 million —Oro Valley Pipeline $ 19.5 million— Reclaimed Water System $ 75.8 million—Total Capital Costs $ 57.1 million— Financing Costs $132.9 million —Total Project Cost $ 6.7 million —CAP Acquisition Capital Charge $139.6 million—TOTAL COSTS Ir .' lc Alternative Water Resources Supply 11,500 AF $139,600,000 Capital and Financing Costs Future Customers • Existing Customers 7,000 AF(61%) 4,500 AF(39%) CAP and Reclaimed - CAP and Reclaimed C 7 $85,156,000 $54,444,000 "1r 12 AWRDF — Proposed • $12,150 per acre foot • 0.41 acre feet per EDU • Proposed Fee: $4,982 for a new single family residential connection (5/8-inch meter). • Adjustments for Non-Residential Customer Classes: — $4,982—single family residential(%-inch meter) — $7,970—commercial and industrial(%-inch meter) — $8,470—non-turf irrigation(%-inch meter) • Fees for connections larger than 5h-inch are adjusted based on their relative meter capacities, as defined by AWWA industry-standard ratios. AP I 41k Groundwater Preservation Fee — Revenue Requirements • Debt Service on $54.4 million — $3.95 million annually • Current Fee of $0.25 per 1,000 gallons generates approximately $700,000 annually. • Oro Valley Water Utility staff will review the GPF as part of the next rate review. AP 14 13 Next Steps Process and Schedule d '�"} M3�;.•6 '+rte_ viga .1 4Ik Next Steps Process and Schedule • 1-08-07 Water Utility Commission meeting to discuss impact fees • 1-09-07 Meet with SAHBA to discuss impact fee process • 1-24-07 Town Council Study Session—Impact Fees • 1-30-07 Public Meeting on Impact Fees • 2-12-07 Water Utility Commission meeting -final recommendation on impact fees • 3-07-07 Town Council Meeting—Adopt Notice of Intent to increase impact fees • 5-16-07 Town Council Meeting—Public Hearing to increase impact fees • 6-06-07 Town Council Meeting—Adopt increased impact fees • 9-05-07 If adopted, new impact fees become effective "vt 14 • Questions and D BOJ, '`- -,-.,,,,A,-...,,,, � •-f oft ;,,,, .,‘ ,, :_., ,,,...„, _ tett .::Veit x=tom -, Contact Dennis E.Jackson,PE RED OAK CONSULTING 100 Fillmore Street,Suite 200 Denver,Colorado 80206 303-316-6537 djackson@pirnie.com :'7 vt.IC ,7, • � . . .e. ,, ` ....�, 4°4 6,i ',, 7, ,, ,,,, < e i ,iI,,.:,.„,;,,,,„,.,,,,,,:,_-,,,:i.,, h ffj ��� My;Ra' `,-.�-?Ftr. �rs{Yh�r�"y,,°kx�vt 44 ;,, P7,, �,iPPPkM +r j Y � .a. �'a ''rr14.� "t''o1 6':. .4iiµ �tr 7 1�"4,5V:1 4. c r:r_,te`<g'*:i fr�ri42.fri#:'.-4'r,:tM >��AXaYk+',_... w ,.n F, dp ; ,r < '...._. 15 -Kr,,, N- N N .k N Oe- CO 0 O (1.; O U 0 W L gT., m n. > a 0 0, = Q) O O O O LC) in 'K 'N cc O ' O O O L O (/) O O O co-O) C) L O ti — N 0) > O N- ,- N- >, CO O CY) O)N- N ti O pO cr f: co M U � 0 0 0 > ~ N cfl 0 2 W 0 c ta co-u to o co O o io co co ti in ca 0. C M N .0 N p = 0 o o U- >% Q OCD . U C) L C.6 Cr) cirnc6c) U 0 Q c7 co co co t O (73 O Q o L N ta 0 4.1U) O N- V. ti N O in 0 O O ^ e- M M O CD N N 0) CO O M ' e- N M e- 13 Lri O c CO O) N e— 0) cu CV.(1) C CO LO e- E 0 O) O) M N 1` RS _ > •C 0 Ni Nr 1,7 IIo MMMtD Ci) 0 >+ _ V .L = U re N .O Q Q LL . U) ca F- L >+ G) _ ) z a a) w N = LL ta Le `. toto�*/).4».(0 COE cu - > = R10 CD 0 ^ O cot-40Z � — O O O O i U z O ' O ti CO Q N O E N c7 ci. c7 O O 0 0 CD CO M I— CD �• — O to CDin I—Q Ce 0 �= ** DRAFT ** AUACHM ENT Proposed Fees The Town of Oro Valley, Arizona Water Utility Impact Fee Analysis AWRDIF PWSDIF AWWA Meter Capacity Single Family Residential Existing Proposed Existing Proposed Ratio (per meter size) Demand Adjustment Factor 1.0 1.0 1.0 1.0 %-inch $300 $4,982 $1,774 $2,567 1.0 3 -inch 450 7,470 1,774 3,850 1.5 1-inch 750 12,450 4,435 6,420 2.5 1'A-inch 1,500 24,910 8,870 12,840 5.0 2-inch 2,400 39,850 14,192 20,540 8.0 Multifamily Residential Existing Proposed Existing Proposed Capacity (per unit) Ratio Demand Adjustment Factor 0.48 0.48 0.47 0.48 NA Per unit 2,390 834 1,230 NA Commercial and Industrial Existing Proposed Existing Proposed Capacity (per meter size) Ratio Demand Adjustment Factor 1.0 1.6 2.3 1.6 s -inch $300 $7,970 $4,080 $4,110 1.0 3 -inch 450 11,960 4,080 6,170 1.5 1-inch 750 19,930 10,200 10,280 2.5 1'A-inch 1,500 39,850 20,400 20,550 5.0 2-inch 2,400 63,760 32,640 32,880 8.0 3-inch 4,500 127,520 65,280 65,760 16 4-inch 7,500 199,250 102,000 102,750 25 6-inch 15,000 398,500 204,000 205,500 50 8-inch Not Specified 637,600 408,000 328,800 80 Irrigation(non-turf) Existing Proposed Existing Proposed Capacity (per meter size) Ratio Demand Adjustment Factor 1.0 1.7 1.8 1.7 6/-inch $300 $8,470 $3,193 $4,360 1.0 a -inch 450 12,710 3,193 6,540 1.5 1-inch 750 21,180 7,983 10,900 2.5 1%-inch 1,500 42,350 15,965 21,800 5.0 2-inch 2,400 67,760 25,544 34,880 8.0 3-inch 4,500 135,520 51,088 69,760 16 4-inch 7,500 211,750 79,825 109,000 25 6-inch 15,000 423,500 159,650 218,000 50 8-inch Not Specified 677,600 319,300 348,800 80 Turf Uses Capacity (per acre) Existing Proposed Existing Proposed Ratio Golf Course Turf $3,680 $18,351 NA Lakes and Open Water 4,640 To be 18,351 To be NA Cemeteries,Parks and Schools 2,880 Determined 18,351 Determined NA Other Uses 2,880 18,351 NA O J P0..EY AR/ O -04 217 4c) OUNDED191� PUBLIC NOTICE Oro Valley Water Utility will be holding a public meeting to discuss an impact fee analysis that the Utility is conducting for future water supply and water system development. The presentation will include an overview of the work performed to date, including the assumptions and methodologies used to analyze the impact fees. All interested parties are encouraged to attend. PLACE: Town of Oro Valley Council Chambers 11000 N. La Canada Dr., Oro Valley,AZ DATE: January 30, 2007 TIME: 7:00 pm. to 8:30 p.m. The Utility has two separate impact fees that were established in 1996: The Alternative Water Resource Development Fee (AWRD Fee) is collected at the time a water meter is purchased. Revenue received from the AWRD Fee is used to pay for acquisition of alternative or renewable water resources and related water delivery infrastructure. This fee is currently set at $300 for a 5/8 inch x 3/4 inch water meter. This fee increases as the meter size increases. The AWRD Fee has not been adjusted since 1996. The Potable Water Development Impact Fee (DIF) is also collected at the time a water meter is purchased. Revenue received from the DIF is used to pay for growth related potable water system infrastructure. This fee is currently set at $1,774 for a 5/8 inch x 3/4 inch water meter. Fees increase based on meter size and user classification. The DIF was last adjusted in July 2000. The Utility's needs have changed over the years and water acquisition and construction costs have increased dramatically. The Water Utility has completed Phase 1 of its reclaimed water delivery system and Phase 2 is currently being designed with construction expected to begin this spring. The cost for both phases of the reclaimed water delivery system is estimated at $19 million. Additionally, the Utility has partnered with other Northwest water providers to begin the process of bringing CAP water to the Northwest region for direct delivery. The costs to bring CAP to the Town are being developed, but are estimated to be in excess of$70 million. The Potable Water System Master Plan adopted by the Town Council in August 2006 identifies the growth-related facilities needed to meet the demands of future customers. This infrastructure is estimated to cost $37.2 million. The existing impact fees will not generate sufficient revenue to construct the required facilities to meet the demands of future growth. Should you have any questions regarding this public meeting, please contact: Shirley Seng, Water Utility Administrator Oro Valley Water Utility (520) 229-5013 sseng{ oroval ey.net