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HomeMy WebLinkAboutOrd 1903AN ORDINANCE Or I Ar U1 I f lar UPDATE _ SUPPLY.• • • BACKFLOW CALIFORNIAPREVENTION STANDARDS IN ACCORDANCE WITH TITLE 17 OF THE •r OF REGULATIONS The City Council of the City of Burlingame does hereby ordain as follows: Section 1. Factual Background and Findings. WHEREAS, California Code of Regulations (CCR), Title 17 requires the City of Burlingame as a water purveyor to protect the Public Water Supply System from potential and actual contamination; and WHEREAS, Burlingame's current water supply cross -connection and backflow prevention standards were last updated in 2002; and WHEREAS, in order to protect the water supply from potential and actual contamination and to comply with State regulations, the City must update its current standards; and WHEREAS, a recent survey of the Burlingame Water Supply System by the California Department of Public Health Services identified that Burlingame's water supply cross -connection standards need to be updated in compliance with the current CCR, Title 17; and WHEREAS, Public Works Department staff has jointly worked with the California Department of Public Health Service and San Mateo County Health Department to update Chapter 15.04 of the Burlingame Municipal Code for compliance with CCR, Title 17. NOW, THEREFORE, THE CITY COUNCIL OF THE CITY OF BURLINGAME DOES ORDAIN AS FOLLOWS: Section 2. Chapter 15.04 of the Burlingame Municipal Code is amended to be in compliance with CCR, Title 17 as follows: a) Section 15.04.020 of Chapter 15.04 is deleted; b) Section 15.04.050 of Chapter 15.04 is completely replaced with a new section and shall read as follows: The purpose of this chapter is to describe the Cross -Connection Control Program implemented by the City of Burlingame Public Works Department to protect the public water supply against actual or potential contamination through cross - connection and backflow. The scope of the Cross -Connection Control Program includes all of the elements necessary to ensure compliance with the California Code of Regulations, Title 17, Public Health Sections 7583 through 7605. The City of Burlingame partners with the San Mateo County Environmental Health Services Division to implement the majority of the scope of this program, including compliance with required program personnel certifications, surveying of residential, industrial and commercial user facilities for potential cross -connection hazards, designation of appropriate backflow preventers, requirements for testers and testing of backflow prevention assemblies, and maintenance of records. 3.0 DEFINITIONS The following definitions describe those terms and phrases that are pertinent to the various elements of a cross -connection control program: 3.1 Approved Backflow Prevention Assembly The term "Approved Backfl ow Prevention Assembly" shall mean assemblies listed, and installed as prescribed, on the most current List of Approved Backflow Prevention assemblies, published by the University of Southern California Foundation for Cross -Connection Control and Hydraulic Research (USC Foundation), and meet any additional requirements deemed necessary by the City or Environmental Health. 3.2 Approved Water Supply The term "approved water supplymeans any local water supply whose potability is regulated by a State or Local Health Agency. 3.3 Auxiliary Water Supply The term "auxiliary water supply' means any water supply on or available to the premises other than the approved water supply as delivered by the water purveyor to the service connection. 3.4 AWWA The term "AWWA" is an acronym for the American Water Works Association. 3.5 Backflow The term "backflow" shall mean a flow conon, caused by a differential in pressure, which causes the flow of water or other liquid, gases, mixtures or substances into the distributing pipes of a potable supply of water from any source or sources other than an approved water supply source. Back siphonage is one cause of backflow. Back pressure is the other cause. 3.6 Backflow Preventer An approved assembly or means designed to prevent backflow. 3.6.1 Air Gap. The unobstructed vertical distance through the free atmosphere between the lowest opening from any pipe or faucet conveying water to a tank, plumbing fixture, receptor or other assembly and the flood level rim of the receptacle. These vertical physical separations must be at least twice the diameter of the water supply outlet, never less than 1 inch. 3.6.2 Reduce Pressure Principle Backflow Prevention Assembly. This assembly consists of two independently acting approved check valves together with a hydraulically operating, mechanically independent pressure differential relief valve located between the check valves and below the first check valve. These units are located between two tightly closing resilient -seated shutoff valves as an assembly and equipped with properly located resilient - seated test cocks. 3.6.3 Double Check Valve Assembly. This assembly consists of two internallY loaded check valves, either spring-loaded or internally weighted, installed as a unit between two tightly closed resilient - seated shutoff valves and equipped with properly located resilient - seated test cocks. 3.6.4 Double Check Valve Detector Assembly. This assembly is a specially designed backflow assembly composed of a line -sized - approved double check valve assembly with a bypass containing a water meter and an approved double check valve assembly. The meter shall register accurately for only very low rates and is used to show unauthorized usage or leaks in the customers system. 3.6.5 Pressure Vacuum Breaker Assembly. This assembly contains one or two independently operated spring loaded check valves and an independently operated spring loaded air inlet valve located on the discharge side of the check or checks. It also includes two tightly closing shutoff valves on each side of the check valves and equipped with properly located resilient -seated test cocks. 3.6.6 Atmospheric Vacuum Breaker Assembly. This assembly contains an air inlet valve, a check seat and an air inlet port(s). A shut off valve immediately upstream may be an integral part of the assembly, but there shall be no shutoff valves or obstructions downstream. The assembly shall not be subject to operating pressure for more than twelve (12) hours in any twenty-four (24) hour period. 3.6.7 Hose Bibb Vacuum Breaker. This device is permanently attached to a hose Bibb and acts as an Atmospheric Vacuum Breaker. 3.7 Customer or Responsible Party The Customer or Responsible Party is the person that either has applied for water service from the City, or owns or controls water piping or fixtures served by the City water supply. The terms customer and responsible party have the same meaning within this ordinance. 3.8 Contamination The term "contamination" means a degradation of the quality of the potable water by any foreign substance which creates a hazard to the public health, or which may impair the usefulness or quality of the water. 3.9 Pollution The term "pollution" shall mean an impairment of the quality of the water to a degree which does not create a hazard to the public health, but, which does adversely and unreasonably affect the aesthetic qualities of such waters for domestic use. 3.10 Cross -Connection The term "cross -connection" as used in this document means any unprotected actual or potential connection between a potable water system used to supply water for drinking purposes and any source or system containing unapproved water or a substance that is not or cannot be approved as safe, wholesome, and potable. By-pass arrangements, jumper connections, removable sections, swivel or changeover devices, or other devices through which backflow could occur, shall be considered to be cross -connections. 3.11 Person The term "person" means an individual, corporation, company, association, partnership, municipality, public utility, or other public body or institution. 3.12 Facility The term "facility" means any and all areas on a water user's property which are served or have the potential to be served by the public water system. 3.13 Public Water System The term "public water system" means a system for the provision to pipe water to the public for human consumption that has five or more service connections or regularly serves an average of 25 individuals daily at least 60 day out of the year. 3.14 Service Connection The term "service connection' refers to the point of connection of a facility's piping to the water supplier's facilities, usually considered the point at the outlet from the water meter. 3.15 Water Supplier The term "water supplier" means the person who owns or operates the approved water supply system. 3.16 Water User The term "water user" means any person obtaining water from an approved water supply system. 3.17 City Unless otherwise specified, the term "City" shall refer to the City of Burlingame Department of Public Works - Water Division or San Mateo County Environmental Health working as a partner to the Water Division. 3.18 Inspection Tag "Inspection Tag" means acurrent-calendar-year backflow tag purchased from San Mateo County Environmental Health. 3.19 Cross -Connection Control Program Specialist The term "cross -connection control program specialist" means a person certified by AWWA, or an approved equivalent certifying entity, to evaluate the hazards inherent in supplying a customer's water system. 3.20 Cert ified Tester The term "certified tester" means a person certified by AW WA or an approved equivalent certificate and certified by San Mateo County Environmental Health Services to perform backflow prevention assembly testing. 4.1 Authority City of Burlingame Department of Public Works is the Administrative Authority for the Cross -Connection Control Program. The authority to administer this program comes from State of California, Title 17; State of California, Public Utilities Commission Rule 16c; and State of California, Department of Public Health Services (and any successor agencies). 4.2 Program Administrator The program administrator for the Cross -Connection Control Program in the City of Burlingame is the Public Works Superintendent or his/her designee. The City also partners with the San Mateo County Environmental Health Services Division through an agreement to implement portions of the program, as allowed by California Health and Safety Code. However, the City is ultimately responsible for the implementation of the program. 5.0 APPROPRIATE BACKFLOW PROTECTION 5.1 New Construction, Remodels and Tenant Improvements 5.1.1 Residential, Single -Family and Duplexes Only A. Domestic Water —The City may require an Approved Backflow Prevention Assembly to be installed on the customer's facility, as close as possible to the service connection. The assembly shall be a Reduced Pressure Principle Backflow Prevention Assembly (RPP) or a Double Check Valve Assembly (DC) as determined by the City. If it is determined that a backflow prevention assembly is required, the customer may also need to install a thermal expansion tank in accordance with the California Plumbing Code, B. Irrigation System —The City requires an Approved Backfl ow Prevention Assembly to be installed on the customer's facility on the branch line serving an Irrigation system. The assembly shall be a Pressure Vacuum Breaker (PVB), Reduced Pressure Principle Backflow Prevention Assembly (RPP), or Atmospheric Pressure Vacuum Breaker (AVB) as determined by the City. C. Fire Suppression System -All facilities with an installed fire suppression system must have an Approved Backflow Prevention Assembly, excluding flow-through fire systems, on the branch line serving the fire suppression system. The assembly shall be a Double Check Valve Assembly (DC) or as determined by the City. Flow-through fire protection systems shall be constructed with approved potable water piping and materials. 5. 1.2 Commercial, Industrial, Institutional, Multi -Family A. Domestic Water— The City may require an Approved Backflow Prevention Assembly to be installed on the customer's facility, as close as possible to the service connection. The assembly shall be a Reduced Pressure Principle Backflow Prevention Assembly (RPP) or a Double Check Valve Assembly (DC) as determined by the City. If it's determined after a survey, that a backflow prevention assembly is required, the customer may also need to install a thermal expansion tank in accordance with the California Plumbing Code. B. Irrigation System —The City requires an Approved Backflow Prevention Assembly to be installed on the customer's facility, as close as possible to any irrigation system service connections or on any irrigation branch line. The assembly shall be a Pressure Vacuum Breaker (PVB), Reduced Pressure Principle Backflow Prevention Assembly (RPP) or Atmospheric Pressure Vacuum Breaker (AVB) as determined by the City. C. Fire Suppression System -All facilities with an installed fire suppression system must have an Approved Backflow Prevention Assembly. The assembly shall be a Double Check Valve Detector Assembly (DCDA) and installed according to City standard specifications and drawings, and this Ordinance. The assembly must incorporate a City - supplied bypass water meter at customer's cost which is also protected with an approved double check valve assembly. 5.2 Existing Service Connection When it is determined in a survey by a City or Environmental Health cross -connection control program specialist that an actual or potential cross connection or backflow condition is present on an existing facility, the installation of an appropriate backflow preventer shall be required. Should an existing backflow prevention assembly be in place that does not meet the City's installation requirements, does not comply with this ordinance, or does not provide adequate protection with the degree of hazard found on site, the assembly shall be replaced or upgraded as required by the City, at the expense of the customer or responsible party. 6.0 SURVEYS 6.1 Identification of Survey Candidates The City may identify specific industries that might pose an actual or potential backflow hazard to the public water supply. Some of these industries are identified from common lists of industries where cross - connections are likely to be found, as provided by the State of California, the USC Foundation, and other recognized organizations. From these lists, specific facilities in the City's service area may be identified by directories, mailing lists, associations, & business licenses. 6.2 Survey Surveys may take the form of office surveys or field surveys. Office surveys may include determination of facility hazards based on business type or known water use on the facility. Office surveys could also include evaluation of responses to mailed or on-line surveys. Field surveys may include evaluation of water use by observations made from public or private areas not on the subject facility, or physical inspection on all or a portion of the facility. When possible, a request to survey the facility shall be made at least 24 hours in advance, and a date and time agreed upon with a responsible party. Should the request to survey be denied by a responsible party, notice shall be sent to the customer or responsible party directing installation of the appropriate backflow assembly, at the water meter, based on best available knowledge of the water use and potential hazards at the facility. During the survey many factors are considered to determine if activities or water use on facility are or could be a potential hazard to the public water supply. Factors that may be considered include: 1. Alternative sources of water on site (auxiliary water supplies). 2. Piping configurations on site. 3. Uses of water on site. 4. Types of water using equipment. 5. Condition of water using equipment. 6. Complexity and elevations of plumbing on site, and the potential for alterations of that system. 7. Storage and use of hazardous materials on site. All the factors found and recorded during the survey shall be considered in the determination of the degree of potential hazard (degree of hazard) to the public water supply. This information shall be considered in the determination of the appropriate backflow preventer. The customer or responsible party shall be informed of the requirement to provide backflow protection and the type of backflow prevention assembly required in accordance with Title 17 of the California Regulations Related to Drinking Water or the direction of the County Health Officer. Backflow prevention assemblies shall be installed in accordance with Title 17 of the California Code of Regulations, Section 7603, the City's Standard Specifications, and the most recent edition of the USC Foundation manual. Any deviation from these requirements shall require the City's approval. Unless otherwise permitted by the City, all backflow preventers shall be installed on the customer's or responsible party's facility. 7.1 Air -Gap Separation (AG) The Air -gap separation shall be located as close as practical to the user's connection and all piping between the user's connection and the receiving tank shall be entirely visible unless otherwise approved. 7.2 Double Check Valve Assembly (DC) A double check valve assembly and double check valve detector assembly shall be installed a minimum of twelve inches (12") above grade and not more than thirty-six inches (36") above grade measured from the bottom of the assembly in a manner where it is readily accessible for testing and maintenance. 7.3 Reduced Pressure Principle Backflow Prevention Assembly (RPP) A reduced pressure principle backflow prevention assembly shall be installed a minimum of twelve inches (12") above grade and not more than thirty-six inches (36") above grade measured from the bottom of the assembly, and with a minimum of twelve inches (12") side clearance in a manner where the assembly is readily accessible for testing and maintenance. 7.4 Pressure Vacuum Breaker (PVB) A pressure vacuum breaker check valve assembly shall be installed a minimum of twelve inches (12") above all downstream piping and flood level rims of receptors and in a manner where it is readily accessible for testing and maintenance. 7.5 Atmospheric Vacuum Breaker (AVB) An atmospheric vacuum breaker check valve assembly shall be installed a minimum of six inches (6") above all downstream piping and flood level rims of receptors and in a manner where it is readily accessible for testing and maintenance. 7.6 Backflow Prevention Assembly Enclosures A backflow prevention assembly enclosure, cage or locked bag may be required by the City to be installed at the customer's expense, to combat against tampering, vandalism or theft. The City may require that any enclosure, cage or locked bag be secured to a concrete slab and securely locked. Any deviation of installation from the descriptions provided shall require the City's approval prior to installation. All backflow prevention assembly installations shall be inspected by the City to ensure compliance with all relevant Statutes, Regulations, Ordinances, and City requirements. 8.1 Responsibility As per the California Code of Regulations, Title 17, the City shall assure that adequate maintenance and periodic testing of backflow prevention assemblies are provided by the customer or responsible party, to ensure the proper operation of the assemblies. Therefore, the City declares that the customer or responsible party is ultimately responsible for the installation, testing, and maintenance of all required backflow prevention assemblies on or related to the customer's facility. 8.2 Certified testers No person shall test and/or make reports on backflow prevention assemblies to comply with this chapter unless he or she possesses a current certification issued by the San Mateo County Environmental Health Services Division as defined in County Ordinance Code. 8.3 Frequency of Testing Backflow prevention assemblies shall be tested by a Certified Tester immediately after they are installed, relocated or repaired and not placed in service unless they are functioning as required. All backflow prevention assemblies shall be tested at least annually or more frequently if determined to be necessary by the City or Environmental Health, in accordance with the California Code of Regulations, Title 17, and San Mateo County Ordinance Code. Exception is 8.4.1.A 8.4 Fire Suppression System Backflow Preventer Testing 8.4.1 Single -Family and Duplex Residential A. Single -Family and Duplex Residential (SFDR) fire suppression systems with an installed backflow prevention assembly shall be tested upon installation only, unless otherwise required by the City. After completion of successfully testing the assembly, the #1 and #2 shut off valves shall remain in the open position and the handles removed. The handles shall be stored in the spare head box. SFDR fire suppression system backflow assemblies are not required to be tested annually because of the low degree of hazard. Commercial, Industrial, Multi -Family A. Commercial, industrial, multi -family fire suppression system backflow preventers must be tested annually by a certified tester. If an existing fire suppression system backflow assembl;^ is located in a vault, and has adequate physical clearance to test, it is considered "existing non -conforming" and approved for testing. C. If an existing assembly fails the field test, the assembly must be repaired or replaced with an appropriate, approved backflow prevention assembly, installed to current City standards. If any failed assembly is currently in a vault, the assembly must be relocated above grade, to meet all current codes and City standards. D. If an existing fire system does not have testable approved backflow prevention assembly the City shall require that a new appropriate assembly that meets all current codes be installed at customer or responsible party expense. 9.0 PROCEDURES FOR TESTING AND INSPECTION 9.1 Testable backflow prevention assemblies shall be tested using current USC Foundation test procedures. 9.2 When a backflow prevention assembly is inspected and has passed the testing procedure, the certified tester shall immediately affix a numbered inspection tag to the assembly purchased from the County of San Mateo Environmental Health Services Division. 9.3 When a backflow prevention assembly fails the testing procedure, the certified tester shall immediately affix a "Failed" inspection tag to the assembly. Records of failed assembly tests shall be filed/submitted as directed within ten (10) days. The "Failed" inspection tag shall remain affixed to the assembly until the assembly is repaired, has passed the testing procedures and has been affixed with a numbered inspection tag. 9.4 Certified testers are solely responsible to comply with applicable municipal requirements for additional permits or licenses (i.e., local business license, plumbing permit, etc.) to test or repair backflow prevention assemblies within the City. 10.0 ENFORCEINENT San Mateo County Environmental Health has the authority to take enforcement action as allowed in the County Ordinance Code Relating to Backflow Prevention, and as it applies to the agreement between the City and Environmental Health. The City shall have the authority to enforce this chapter as follows. 10.I Any person who violates any provision of this chapter, or bypasses or renders inoperative any backflow prevention assembly installed under the provisions of this chapter, shall be subject to fines as detailed in Burlingame Municipal Code Chapter 1.12 — Violations of Code. 10.2 Failure to comply with any section of this chapter may be cause for the discontinuance of water service by the City. The program administrator shall give notice in writing of any violations of this chapter to the customer or responsible party. If appropriate action is not taken within ten (10) days after such notice has been mailed or delivered in person, the program administrator may discontinue delivery of water. However, if the program administrator or the health officer determines that the violation constitutes an immediate threat to the public health or safety or to the integrity of the public water system, the program administrator or the health officer may discontinue delivery of water immediately without prior notice; in such an instance, the program administrator or the health officer shall deliver notice of discontinuance as soon as practicable to the property owner and customer or responsible party. Delivery of water shall not be resumed until all required corrective actions have been made and certified as complete by the City or Environmental Health. 10.3 All costs incurred by the City for discontinuance of water service and all fees associated with reinstating water service shall be paid by the customer or responsible party. Costs incurred by Environmental Health for inspections shall be paid by the customer or responsible party at the rate set forth by San Mateo County Ordinance, 11.0 REPORTING All reporting required by this chapter at the City shall be the responsibility of the program administrator. This includes any reports to local, state, and federal regulatoryor health agencies such as; California Department of Health Services, and San Mateo County Environmental Health Services Division. 12.0 TRAINING OF PERSONNEL 12.1 Program Administrator The Program Administrator of the Cross -Connection Control Program at the City shall be a minimum of a supervisor capacity. He or she shall be a Cross -Connection Control Program Specialist as defined in this chapter. 12.2 Cross -Connection Control Inspector and Tester The City representative assigned to the inspection and survey of consumers to determine if backflow prevention is warranted shall be a Cross -Connection Control Program Specialist as defined in this chapter. The City employee assigned to the testing of City -owned assemblies shall be a certified Tester as defined in this chapter. 13.1 Assembly Records Records of assembly type, size, manufacturer, installation date, location, account number, customer or responsible party of record, and repair history shall be kept electronically or in hard copy form. Assembly records shall be kept for the life of the assembly by either the City or by Environmental Health as appropriate. 13.2 Testing Records Section 3. Section 4. Test results on all assemblies shall be kept electronically or in hard copy form for a minimum of three years. The Director of Public Works is hereby authorized to implement the provisions of this Chapter in compliance with CCR Title 17. The City Clerk is directed to publish this ordinance in the manner required by law. I, Mary Ellen Kearney, City Clerk of the City of Burlingame;ldo hereby certify that the foregoing ordinance was introduced at a public hearing occurred at a regular meeting of the City Council held on the 18th day of August, 2014, and adopted thereafter at a regular meeting of the City Council held on the 2nd day of September, 20141 by the following vote: AYES: Councilmembers: BROWNRIGG, DEAL, KEIGHRAN, NAGEL, ORT IZ NOES: Councilmembers: NONE ABSENT: Councilmembers: NONE f z Mary Ellen Kearney, City Clerk Fees for water service installations shall be those provided from time to time by resolution of the city council. The council shall also establish by resolution such other fees, charges and procedures as may be necessary for the administration of water service. (Ord. 917 § ,(1970); Ord. 1026 § 1, (1974)) 15.04.030 Installation of ffire protection service. (a) All fire protection services are to be installed by the owner at his or her expense with the required encroachment permit and inspection by the city public works department. (b) A double check detector valve of a type approved by the city public works department is required on all fire services and is to be furnished by the owner. Each building with a fire protection service shall have its own separate fire connection with the city water main. (c) A backflow prevention device, which shall be of a type approved by the director of public works and the health officer, is required on buildings three (3) stories or more in height. (Ord. 917 § 2, (1970); Ord. 1035 § 1, (1975); Ord. 1679 § 4, (2002)) The ownership of this water service installation including the meter, MIN fiom main through the meter box shall be vested in the .. 15.04.030 Installation of ffire protection service. (a) All fire protection services are to be installed by the owner at his or her expense with the required encroachment permit and inspection by the city public works department. (b) A double check detector valve of a type approved by the city public works department is required on all fire services and is to be furnished by the owner. Each building with a fire protection service shall have its own separate fire connection with the city water main. (c) A backflow prevention device, which shall be of a type approved by the director of public works and the health officer, is required on buildings three (3) stories or more in height. (Ord. 917 § 2, (1970); Ord. 1035 § 1, (1975); Ord. 1679 § 4, (2002)) The ownership of this water service installation including the meter, and complete service fiom main through the meter box shall be vested in the city of Burlingame. A credit for the cost of the meter on an existing service being abandoned may be claimed when a new larger service replaces an existing service. (Ord. 917 § 2, (1970)) 15.04.050— Cross -Connections and Backflow Standards 1.0 PURPOSE The purpose of this chapter is to describe the Cross -Connection Control Program implemented by the City of Burlingame Public Works Department to protect the public water supply against actual or potential contamination through cross -connection and backflow. 2.0 SCOPE The scope of the Cross -Connection Control Program includes all of the elements necessary to ensure compliance with the California Code of Regulations, Title if, Public Health Sections 7583 through 7605. The City of Burlingame partners with the San Mateo ■. wgsl • ■ • �■ 15.04.050— Cross -Connections and Backflow Standards 1.0 PURPOSE The purpose of this chapter is to describe the Cross -Connection Control Program implemented by the City of Burlingame Public Works Department to protect the public water supply against actual or potential contamination through cross -connection and backflow. 2.0 SCOPE The scope of the Cross -Connection Control Program includes all of the elements necessary to ensure compliance with the California Code of Regulations, Title if, Public Health Sections 7583 through 7605. The City of Burlingame partners with the San Mateo ■. • ■ • �■ 15.04.050— Cross -Connections and Backflow Standards 1.0 PURPOSE The purpose of this chapter is to describe the Cross -Connection Control Program implemented by the City of Burlingame Public Works Department to protect the public water supply against actual or potential contamination through cross -connection and backflow. 2.0 SCOPE The scope of the Cross -Connection Control Program includes all of the elements necessary to ensure compliance with the California Code of Regulations, Title if, Public Health Sections 7583 through 7605. The City of Burlingame partners with the San Mateo County Environmental Health Services Division to implement the majority of the scope of this program, including compliance with required program personnel certifications, surveying of residential, industrial and commercial user facilities for potential cross - connection hazards, designation of appropriate backflow preventers, requirements for testers and testing of backflow prevention assemblies, and maintenance of records. 3.0 DEFINITIONS The following definitions describe those tenns and phrases that are pertinent to the various elements of a cross -connection control program: 3.1 Approved Backflow Prevention Assembly The term `Approved Backflow Prevention Assembly" shall mean assemblies listed, and installed as prescribed, on the most current List of Approved Backflow Prevention assemblies, published by the University of Southern California Foundation for Cross -Connection Control and Hydraulic Research (USC Foundation), and meet any additional requirements deemed necessary by the City or Environmental Health. 3.2 Approved Water Supply The term "approved watersupply"means any local water supply whose potability is regulated by a State or Local Health Agency. 3.3 Auxiliary Water Supply The term "auxiliary water supply" means any water supply on or available to the premises other than the approved water supply as delivered by the water purveyor to the service connection. The term `;4WWA" is an acronym for the American Water Works Association. 3.5 Backflow The term `backflow" shall mean a flow condition, caused by a differential in pressure, which causes the flow of water orotherliquid, gases, mixtures or substances into the distributing pipes of a potable supply of water from any source or sources other than an approved water supply source. Back siphonage is one cause of backflow. Back pressure is the other cause. 3.6 Backflow Preventer An approved assembly or means designed to prevent backflow. 3.6.1 Air Gap. The unobstructed vertical distance through the free atmosphere between the lowest opening from any pipe or faucet conveying water to a tank, plumbing fixture, receptor or other assembly and the flood level rim of the receptacle. These vertical physical separations must be at least twice the diameter of the water supply outlet, never less than 1 inch. 3.6.2 Reduce Pressure Principle Backflow Prevention Assembly. This assembly consists of two independently acting approved check valves together with a hydraulically operating, mechanically independent pressure differential relief valve located between the check valves and below the first check valve. These units are located between two tightly closing reslllent-seated shutoff valves as an assembly and equipped with property located resilient -seated test cocks. 3.6.3 Double Check Valve Assembly. This assembly consists of two internally loaded check valves, either spring-loaded or internally weighted, installed as a unit between two tightly closed resilient -seated shutoff valves and equipped with properly located resilient -seated test cocks. 3.6.4 Double Check Valve Detector Assembly. This assembly is a specially designed backflow assembly composed of a line -sized -approved double check valve assembly with a bypass containing a water meter and an approved double check valve assembly. The meter shall register accurately for only very low rates and is used to show unauthorized usage or leaks in the customers system. Pressure Vacuum Breaker Assembly This assembly contains one or two independently operated spring loaded check valves and an independently operated spring loaded air inlet valve located on the discharge side of the check or checks. It also includes two tightly closing shutoff valves on each side of the check valves and equipped with properly located resilient - seated test cocks. 3.6.6 Atmospheric Vacuum Breaker Assembly This assembly contains an air inlet valve, a check seat and an air inlet port(s). A shut off valve immediately upstream may be an integral part of the assembly, but there shall be no shutoff valves or obstructions downstream. The assembly shall not be subject to operating pressure for more than twelve (12) hours in any twenty-four (24) hour period. 3.6.7 Hose Bibb Vacuum Breaker. This device is permanently attached to a hose bibb and acts as an Atmospheric Vacuum Breaker. 3.7 Customer or Responsible Party The Customer or Responsible Party is the person that either has applied for water service from the City, or owns or controls water piping or fixtures served by the City water supply. The terms customer and responsible party have the same meaning within this ordinance. 3.8 Contamination The term "contamination" means a degradation of the quality of the potable water by any foreign substance which creates a hazard to the public health, or which may impair the usefulness or quality of the water. 3.9 Pollution The term `pollution" shall mean an impairment of the quality of the water to a degree which does not create a hazard to the public health, but, which does adversely and unreasonably affect the aesthetic qualities of such waters for domestic use. 3.10 Cross -Connection The term "cross -connection" as used in this document means any unprotected actual or potential connection between a potable water system used to supply water for drinking purposes and any source or system containing unapproved water or a substance that is not or cannot be approved as safe, wholesome, and potable. By-pass arrangements, jumper connections, removable sections, swivel or changeover devices, or other devices through which backflow could occur, shall be considered to be cross -connections. 3.11 Person The term `person"means an individual, corporation, company, association, partnership, municipality, public utilily, or other public body or institution. 3.12 Facility The tern `facility" means any and all areas on a water user's property which are served or have the potential to be served by the public water system. 3.13 Public Water System The term `public water system"means a system for the provision to pipe water to the public forhuman consumption that has five or more service connections or regularly serves an average of 25 individuals daily at least 60 day out of the year. 3.14 Service Connection The term "service connection"refers to the point of connection of a facility's piping to the water supplier's facilities, usually considered the point at the outlet from the watermeter. 3.15 Water Supplier The term "watersupplier means the person who owns oroperates the approved water supply system. 3.16 Water User The term "wafer user" means any person obtaining water from an approved water supply system. 3.17 City Unless otherwise specified, the term "City" shall refer to the City of Burlingame Department of Public Works - Water Division or San Mateo County Environmental Health working as a partner to the Water Division. 3.18 Inspection Tag "Inspection Tag" means acurrent-calendar-year backflow tag purchased from San Mateo County Environmental Health. 3.19 Cross -Connection Control Program Specialist The term "cross -connection control program specialist" means a person certified byAWWA, oran approved equivalent certifying entity, to evaluate the hazards inherent in supplying a customer's water system. 3.20 Certified Tester The term "certified tester' means a person cerf�ed by AWWA or an approved equivalent certificate and cert�ed by San Mateo County Environmental Health Services to perform backflow prevention assembly testing, 4.0 ADMINISTRAT/ONOFPROGRAM 4.1 Authority City of Burlingame Department of Public Works is the Administrative Authority for the Cross -Connection Control Program. The authority to administer this program comes from State of California, Title 17; State of California, Public Utilities Commission Rule 16c; and State of California, Department of Public Health Services (and any successor agencies). 4.2 Program Administrator The program administrator for the Cross -Connection Control Program in the City of Burlingame is the Public Works Superintendent or his/her designee. The City also partners with the San Mateo County Environmental Health Services Division through an agreement to implement portions of the program, as allowed by Califomia Health and Safety Code. However, the City is ultimately responsible for the implementation of the program. 5.® APPROPRIATE BACKFLOW PROTECTION 5.1 New Construction, Remodels and Tenant Improvements 5.1.1 Residential, Single -Family and Duplexes Only A. Domestic Water— The City may require an Approved Backflow Prevention Assembly to be installed on the customer's facility, as close as possible to the service connection. The assembly shall be a Reduced Pressure Principle Backflow Prevention Assembly (RPP) ora Double Check Valve Assembly (DC) as determined by the City. If it is determined that a backflow prevention assembly is required, the customer may also need to install a thermal expansion tank in accordance with the California Plumbing Code. 8. Irrigation System —The City requires an Approved Backflow Prevention Assembly to be installed on the customer's facility on the branch line serving an Irrigation system. The assembly shall be a Pressure Vacuum Breaker (PVB), Reduced Pressure Principle BackFlow Prevention Assembly (RPP), or Atmospheric Pressure Vacuum Breaker (AVB) as determined by the City. C. Fire Suppression System -All facilities with an installed fire suppression system must have an Approved Backflow Prevention Assembly, excluding flow-through fire systems, on the branch line serving the fire suppression system. The assembly shall be a Double Check Valve Assembly (DC) or as determined by the City. Flow-through fire protection systems shall be constructed with approved potable water piping and materials. 5.1.2 Commercial, Industrial, Institutional, Multi -Family A, Domestic Water— The City may require an Approved Backflow Prevention Assembly to be installed on the customer's facility, as close as possible to the service connection. The assembly shall be a Reduced Pressure Principle Backflow Prevention Assembly (RPP) or a Double Check Valve Assembly (DC) as determined by the City. If it's determined after a survey, that a backflow prevention assembly is required, the customer may also need to install a thermal expansion tank in accordance with the California Plumbing Code. 8. Irrigation System —The City requires an Approved Backflow Prevention Assembly to be installed on the customer's facility, as close as possible to any irrigation system service connections or on any irrigation branch line. The assembly shall be a Pressure Vacuum Breaker (PVB), Reduced Pressure Principle Backflow Prevention Assembly (RPP) or Atmospheric Pressure Vacuum Breaker (AVB) as determined by the City. C. Fire Suppression System -All facilities with an installed fire suppression system must have an Approved Backflow Prevention Assembly. The assembly shall be a Double Check Valve Detector Assembly (DCDA) and installed according to City standard specifications and drawings, and this Ordinance. The assembly must incorporate a City -supplied bypass water meter at customer's cost which is also protected with an approved double check valve assembly. 5.2 Existing Service Connection When itis determined in a survey by a City or Environmental Health cross - connection control program specialist that an actual or potential cross connection or backflow condition is present on an existing facility, the installation of an appropriate backflow preventershall be required. Should an existing backflow prevention assembly be in place that does not meet the City's installation requirements, does not comply with this ordinance, or does not provide adequate protection with the degree of hazard found on site, the assembly shall be replaced or upgraded as required by the City, at the expense of the customer or responsible party. 6.0 SURVEYS 6.1 Identification of Survey Candidates The City may identify specific industries that might pose an actual or potential backflow hazard to the public water supply. Some of these industries are identified from common lists of industries where cross -connections are likely to be found, as provided by the State of California, the USC Foundation, and other recognized organizations. From these lists, specific facilities in the City's service area may be identified by directories, mailing lists, associations, & business licenses. 6.2 Survey Surveys may take the form of office surveys or field surveys. Office surveys may include determination of facility hazards based on business type or known water use on the facility. Office surveys could also include evaluation of responses to mailed or on-line surveys. Field surveys may include evaluation of water use by observations made from public or private areas not on the subject facility, or physical inspection on all or a portion of the facility. When possible, a request to survey the facility shall be made at least 24 hours in advance, and a date and time agreed upon with a responsible party. Should the request to survey be denied by a responsible party, notice shall be sent to the customer or responsible party directing installation of the appropriate backflow assembly, at the water meter, based on best available knowledge of the water use and potential hazards at the facility. During the survey many factors are considered to determine if activities or water use on facility are or could be a potential hazard to the public water supply. Factors that may be considered include: 1. Alternative sources of water on site (auxiliary water supplies). 2. Piping configurations on site. 3. Uses of water on site. 4. Types of water using equipment. 5. Condition of water using equipment. 6. Complexity and elevations of plumbing on site, and the potential for alterations of that system. 7. Storage and use of hazardous materials on site. All the factors found and recorded during the survey shall be considered in the determination of the degree of potential hazard (degree of hazard) to the public water supply. This information shall be considered in the determination of the appropriate backflow preventer. The customer or responsible party shall be informed of the requirement to provide backflow protection and the type of backflow prevention assembly required in accordance with Title 17 of the California Regulations Related to Drinking Water or the direction of the County Health Officer. Backflow prevention assembliess a e installed in accordance with Title 17 of the California Code of Regulations, Section 7603, the City's Standard Specifications, and the most recent edition of the USC Foundation manual. Any deviation from these requirements shall require the City's approval. Unless otherwise permitted by the City, all backflow preventers shall be installed on the customer's or responsible party's facility. 7,1 Air -Gap Separation (AG) The Air -gap separation shall be located as close as practical to the user's connection and all piping between the user's connection and the receiving tank shall be entirely visible unless otherwise approved. 7.2 Double Check Valve Assembly (DC) A double check valve assembly and double check valve detector assembly shall be installed a minimum of twelve inches (12') above grade and not more than thirty-six inches (36') above grade measured from the bottom of the assembly in a manner where it is readily accessible for testing and maintenance. 7.3 Reduced Pressure Principle Backflow Prevention Assembly (RPP) A reduced pressure principle backflow prevention assembly shall be installed a minimum of twelve inches (12') above grade and not more than thirty-six inches (36') above grade measured from the bottom of the assembly, and with a minimum of twelve inches (12') side clearance in a manner where the assembly is readily accessible for testing and maintenance. 7.4 Pressure Vacuum Breaker (PVB) A pressure vacuum breaker check valve assembly shall be installed a minimum of twelve inches (12') above all downstream piping and flood level rims of receptors and in a manner where it is readily accessible for testing and maintenance. 7.5 Atmospheric Vacuum Breaker (AVB) An atmospheric vacuum breaker check valve assembly shall be installed a minimum of six inches (6') above all downstream piping and flood level rims of receptors and in a manner where it is readily accessible for testing and maintenance. 7.6 Backfl ow Prevention Assembly Enclosures A backflow prevention assembly enclosure, cage or locked bag may be required by the City to be installed at the customer's expense, to combat against tampering, vandalism or theft. The City may require that any enclosure, cage or locked bag be secured to a concrete slab and securely locked. Any deviation of installation from the descriptions provided shall require the City's approval prior to installation. All backflow prevention assembly installations shall be inspected by the City to ensure compliance with all relevant Statutes, Regulations, Ordinances, and City requirements. 8.1 Responsibility As per the California Code of Regulations, Title 17, the City shall assure that adequate maintenance and periodic testing of backflow prevention assemblies are provided by the customer or responsible party, to ensure the proper operation of the assemblies. Therefore, the City declares that the customer or responsible party is ultimately responsible for the installation, testing, and maintenance of all required backflow prevention assemblies on or related to the customer's facility. 8.2 Certified testers No person shall test and/or make reports on backflow prevention assemblies to comply with this chapter unless he or she possesses a current certification issued by the San Mateo County Environmental Health Services Division as defined in County Ordinance Code. 8.3 Frequency of Testing Backflow prevention assemblies shall be tested by a Certified Tester immediately after they are installed, relocated or repaired and not placed in service unless they are functioning as required. All backflow prevention assemblies shall be tested at least annually or more frequently if determined to be necessary by the City or Environmental Health, in accordance with the California Code of Regulations, Title 17, and San Mateo County Ordinance Code. Exception is 8.4.1.A 8.4 Fire Suppression System Backflow Preventer Testing 8.4.1 Single -Family and Duplex Residential A. Single -Family and Duplex Residential (SFDR) fire suppression systems with an installed backflow prevention assembly shall be tested upon installation only, unless otherwise required by the City. After completion of successfully testing the assembly, the #1 and #2 shut off valves shall remain in the open position and the handles removed. The handles shall be stored in the spare head box. SFDR fire suppression system backflow assemblies are not required to be tested annually because of the low degree of hazard. 8.4.2 Commercial, Industrial, Multi -Family A. Commercial, industrial, multi -family fire suppression system backflow preventers must be tested annually by a certified tester. 8. If an existing fire suppression system backflow assembly is located in a vault, and has adequate physical clearance to test, it is considered "existing non -conforming" and approved for testing. C. If an existing assembly fails the field test, the assembly must be repaired or replaced with an appropriate, approved backflow prevention assembly, installed to current City standards. If any failed assembly is currently in a vault, the assembly must be relocated above grade, to meet all current codes and City standards. D. If an existing fire system does not have testable approved backflow prevention assembly the City shall require that a new appropriate assembly that meets all current codes be installed at customer or responsible party expense. 9.0 PROCEDURES FOR TESTING AND INSPECTION 9.1 Testable backflow prevention assemblies shall be tested using current USC Foundation test procedures. 9.2 When a backflow prevention assembly is inspected and has passed the testing procedure, the certified tester shall immediately affix a numbered inspection tag to the assembly purchased from the County of San Mateo Environmental Health Services Division. 9.3 When a backflow prevention assembly fails the testing procedure, the certified tester shall immediately affix a "Failed" inspection tag to the assembly. Records of failed assembly tests shall be filed/submitted as directed within ten (10) days. The "Failed" inspection tag shall remain affixed to the assembly until the assembly is repaired, has passed the testing procedures and has been affixed with a numbered inspection tag. 9.4 Certified testers are solely responsible to comply with applicable municipal requirements for additional permits or licenses (i.e., local business license, plumbing permit, etc.) to test or repair backflow prevention assemblies within the City. San Mateo County Environmental Health has the authority to take enforcement action as allowed in the County Ordinance Code Relating to Backflow Prevention, as it applies to the agreement between the City and Environmental Health. The City shall have the authority to enforce this chapter as follows. 10.1 Any person who violates any provision of this chapter, or bypasses or renders inoperative any backflow prevention assembly installed under the provisions of this chapter, shall be subject to fines as detailed in Burlingame Municipal Code Chapter 1.12 - Violations of Code. 10.2 Failure to comply with any section of this chapter may be cause for the discontinuance of water service by the City. The program administrator shall give notice in writing of any violations of this chapter to the customer or responsible party. If appropriate action is not taken within ten (10) days after such notice has been mailed or delivered in person, the program administrator may discontinue delivery of water. However, if the program administrator or the health officer determines that the violation constitutes an immediate threat to the public health or safety or to the integrity of the public water system, the program administrator or the health officer may discontinue delivery of water immediately without prior notice; in such an instance, the program administrator or the health officer shall deliver notice of discontinuance as soon as practicable to the property owner and customer or responsible party. Delivery of water shall not be resumed until all required corrective actions have been made and certified as complete by the City or Environmental Health. 10.3 All costs incurred by the City for discontinuance of water service and all fees associated with reinstating water service shall be paid by the customer or responsible party. Costs incurred by Environmental Health for inspections shall be paid by the customer or responsible party at the rate set forth by San Mateo County Ordinance. 11,0 REPORTING All reporting required by this chapter at the City shall be the responsibility of the program administrator. This includes any reports to local, state, and federal regulatory or health agencies such as; California Department of Health Services, and San Mateo County Environmental Health Services Division. 12.1 Program Administrator The Program Administrator of the Cross -Connection Control Program at the City shall be a minimum of a supervisor capacity. He or she shall be a Cross - Connection Control Program Specialist as defined in this chapter. 12.2 Cross -Connection Control Inspector and Tester The City representative assigned to the inspection and survey of consumers to determine if backflow prevention is warranted shall be a Cross -Connection Control Program Specialist as defined in this chapter. The City employee assigned to the testing of City -owned assemblies shall be a certified Tester as defined in this chapter. 13.0 MAINTENANCE OF RECORDS 13.1 Assembly Records Records of assembly type, size, manufacturer, installation date, location, account number, customer or responsible party of record, and repair history shall be kept electronically or in hard copy form. Assembly records shall be kept for the life of the assembly by either the City or by Environmental Health as appropriate. 13.2 Testing Records Test results on all assemblies shall be kept electronically or in hard copy form for a minimum of three years. Design details, methods and materials for construction of water services over two (2) inches in diameter within public property are not specified in this code. Such details, methods and materials shall conform with specifications for the construction of such work as are compiled by the city engineer. Such specifications may be changed from time to time at the option of the city engineer but such changes shall in no way affect the validity of regulations or requirements contained herein. (Ord. 1035 § 2, (1975)) NOTE: This publication is meant to bean aid to the stc0ofthe CDPHDrinking Water Program and cannot be relied upon by the regulated community as the State of California's representation of the law. The published codes are the only officialrepresentation of the law. Refer to the published codes—in this case, 17 CCR and 22 CCR ivheneverspeciftc citations are required Statutes related to CDPH's drinking water -related activities are in the Health & Safety Code, the Water Code, and other codes. (DIVISION 1. STATE DEPARTMENT OF REALTH SERVICES CHAPTER 5. SANITATION (ENVIRONMENTAL) SUBCHAPTER I. ENGINEERING (S TARS) GROUP 46 DRINKING WATER SUPPLIES Awhcle 1. General 175834 pefinitionsa lit addition to the definitions in Section 116275 of the Health and Safety Code, the following terms are defined for the purpose of this Chapter: (a) "Approved Water Supply" is a water supply whose potability is regulated by a State of local health agency. (b} '°Auxiliary Water Supply" i5 any water supply other than that received from a public water system. (c) "Au -gap Separation (AG)" is a physical break between the supply line and a receiving vessel. - C (d) "AW WA Standard" is a�a official standard developed and approved by the American Water Works Association (AWWA), (e) "Cross -Connection'" is an unprotected actual or potential connection between.a pMUM wrier system used to supply water for drinking purposes and any source or system containing unapproved water or a substance that is not or cannot be approved as safe, wholesome, and potable. By-pass arrangements, jumper connections, removable sections, swivel or changeover devices, or other devices through which backflow could occur, shall be considered to be cross -connections, (f) "Double Check Valve Assembly (DC)" is an assembly bf at least two independently acting check valves including tightly closing shut-off valves on each side of the check valve assembly and test cocks available for testing the watertightness of each check valve. (g) "Health Agency" means the California Aepartment of Health Services, or the local health officer with respect to a small water system. (h) "Local Health Agency" means the county or city health authority. (i) "Reclaimed Water" is a wastewater which as a result of treatment is suitable for uses otherthan potable use. Last ttpdaied July I, 2014 from Z'tttes 17 and 22 California Code o, fRegulaflons California Regtalaticns Related to Drinking Plater NOTE: This publication is meant to be an aid to the stglf of the CDPHDrinking Water Program and cannot be relied upon by the regulated community as the Slate of California's representation ofthe.law, The published codes are tate only official representation of the law. Refer to the published codes—in this case, 17 CCR and 22 CCK—whenever specific citations are required Statutes related to CDPH's drinldng wafer -related activities are in the Health & Sgfety Code, the Water Code, and other codes. (j) "Reduced Pressure principle Backflow Prevention Device (RP)" is a backflow preventer incorporating not less than two check valves, an automatically operated differential relief valve located between the two check valves, a tightly closing shut-off valve on each side of the check valve assembly, and equipped with necessary test cocks or testing. (k) "User Connection" is the point of Connection of a user's piping to the water supplier's facilities. (1) "Wator Supplier" is the person who owns or operates the public water system. (nt} "Water User" is any person obtaining wator from a public water supply. §7S$4.12esponsibll►ty and scope of program. The water supplier shall protect the public water supply from contamination by implementation of a cross -connection control program. The program, or any portion thereof, may be implemented directly by the water supplier or by means of a gontract with the local health agency, or with another agency approved by the health agency. The water supplier's cross -connection control program shall for the purpose of addressing the requirements of Sections 7585 through 7605 include, but not be limited to, the following elements: (a) The adoption of operating rules or ordinances to implement the cross -connection program. (b) The conducting of surveys to identify wafer Usor premises where cross - connections are likely to occur, (c) The previsions of backflow protection by the water user at the user's connection or within the user's premises or both, MI The provision of at toast one persan trained in cross -connection control to carry . out the cross -connection program, (e) The establishment of a procedure or system for testing backflow preventers; and (t) The maintenance of records of locations, tests, and repairs of backflow preventers. §7585. )Gvaluation of hazard. The water supplier shall evaluate rho degree of potential health hazard to the publio water supply which may be created as a result of conditions existing on a user's premises. The water supplier, however, shall not be responsible for abatement of cross -connections which may exist within a user's premises, As a minimum, the evaluation should consider: the existence of cross -connections, the nature of materials handled on the property, the probability of a backflow occurring, the degree of piping system complexity and the 16 Last updated July 1, 2014 from Titles 17 and 22 California Code of Regulations California Regulations Related to Drinking Water NOTE: This publication is meant to bean aid to the staff ofthe CDPHDrinking Water Program and cannot be relied upon by the regulated community as the State of California's representation of the law, nii published codes are the only ofjlciat representation of the law. Refer to the published codes—in this case, 17 CCR and 22 CCR—whenever specific citations are required. Statutes related to CDPA's drinking water -related activities are in the Health & Safety Code, the Water Code, and other codes. potential For piping system modification. Special consideration shall be given to the premises of the following types of water users: (a) Premises where substances harmful to health are handled under pressure in a manner which could permit their entry into the public water system. This includes chemical or biological process waters and water from public water supplies which have deteriorated in sanitary quality. (b) Premises having an auxiliary water supply, unless the auxiliary supply is accepted as an additional source by the water supplier and is approved by the health agency. (c} Premises Yhat have internal cross -connections that are not abated to the satisfaction of the water supplier or the health agency. (d) Premises whore amss-Connections are likely to occur and entry is restricted so that cross -connection inspections cannot be made with sufficient frequency or at sufficiently short notice to assure that Bross -connections do not exist. (e) Premises having a repeated history oFcross-connections being established or re- establiished. §7586. User stapervlsor. The health agency and water supplier may, at their discretion, require an industrial water user to designate a user supervisor when the water user's premises has a multipiping system that convey various types of fluids, some of which may be hazardous and where changes in the piping system are frequently made. The user supervisor shall be responsible for the avoidance of cross -connections during the installation, operation and maintenance of the water user's pipelines and equipment. Article 2. Protection of Wrrtet' System §7601. Approval of backflow preventers. Backflow preventers required by this Chapter shall have passed laboratory and field evaluation tests performed by a recognized testing organization which has demonstrated tlteir competency to perform such tests to the Department. §7602. Construction of backflow preventers. (a) Air -gap 5eparatian. An Air -gap separation (AG) shall be at least double the diameter of the supply pipe, measured vertically from the flood rim of the receiving vessel to the supply pipe; however, in no case shall flus separation be less than one inch. (b) Double Check Valve Assembly. A required double check valve assembly (DC) shall, as a minimum, conform to the AW WA Standard C506-78 (R$3}adopted on January 28, 1978 For Double Check Valve Type Backflow Preventive Devices which is herein incorporated by reference. Last updated JuPy 1, 2014 from Titles 17 and 22 California Code ofRegudations California Regula&ons Related %a Drinking Wafer NOTE: This publication is meant to bean aid to the stqffbfthe CDPHDrinking Water Program and cannot be relied upon by the regulated community as the State of Ca4fornia's representation ofthe law. The publisbed codes are the only official representation of the law. Refer to the published codes—in this case, 17 CCR and 22 CCR—whenever speck citations are required. Statutes related to CDPH's drinking water-related actividies are in the Health & Safety Code, the Water Code, and other codes. (c) Reduced Pressure Principle Backflow Prevention Device. A required reduced pressure principle baMow,prevention device (RP) shall, as a minimum, conform to the AW WA Standard 0506-78 (11$3) adopted on January 28,1478 for Reduced Pressure Principle Type Backflow Prevention Devices which is herein incorporated by reference. §7603. Location of backflow preventers. (a) Air-gap Separation. An air-gap separation shall be located as close as practical to the user°s connection and all piping between the user's connection and the receiving tank shall be entirely visible unless otherwise approved in writing by the water supplier and the health agency. (b) Double Check Valve Assembly. A double check valve assembly shall be located as close as practical to the user's connectiodt and shall be installed above grade, if possible, and in a manner where it is readily accessible for testing and maintenance. (c) Reduced Pressure Principle Backflow Prevention Device. A reduced pressure principle backflow prevention device shall be located as close as practical to the user's connection and shall be installed a minimum of twelve inches (12") above grade and not more than thirty-six inches (36") above grade measured from the bottom of the device and with a minimum of twelve inches (12") side clearance. X7604. Type of protection required. The type of protection that shall be provided to prevent backflow into the public water supply shall be commensurate with the degree of hazard that exists on the consumer's prcmises. The type of protective device that may be required (listed in an increasing level of protection) includes: Double check Valve Assembly-(DC), Reduced Pressure Principle Backflow Prevention Device-(RP) and an Air gap Separation-(AG). The water user may choose a higher level of protection than required by the water supplier. The minimum types of backflow protection required to protect the public water supply, at the water user's connection to premises with various degrees of hazard, are given in Table 1. Situations not covered in Table 1 shall be evaluated on a case-by�case basis and the appropriate backflow protection shall be determined by the water supplier or health agency. Zasd updated Tuly I, 2074 from Titles 17 and 22 California Code of Regulations Califarnsa Regulatimrs Related to Drtnldng Water NOT.C: This publication Is meant to bean aid to the staff of the CMI'Drinking Water Program and cannot be relied upon by the regulated community as the State of California's representation of the law. T he published codes are the only ofcial representation of the law. Refer to the published codes—in this case, 17 CCR and 22 CCR whenever specific citations are required Statutes related to CDPH's drinking water -related activities are in the Health & Safety Code, the Water Code, and other codes. Degree of Hazard Minimum Type of Backflow Prevention (a) Sewage and Hazardous Substances (1) Premises where there are waste water pumping and/or treatment AG plants and there is no interconnection with the potable water system. This does not include a single-family residence that has a sewage lilt pump. A RP may be provided in lieu of an AG if approved by the health agency and water supplier. (2) Premises where bazardous substances are handled in any AG manner in which the substances may enter the potable water system. This does not include a single-family residence that has a sewage lift pump. A RP may be provided in lieu of an AG if approved by the health agency and water supplier. (3) Premises where there are irrigation systems into which RP fertilizers, herbicides, or pesticides are, or can be, injected. (b) Auxiliary Water Supplies (1) Premises where there is an unapproved auxiliary water supply AG which is interconnected with the public water system. A RP or DC may be provided in lieu of an AG if approved by the health agency and water supplier (2) Premises where there is an unapproved auxiliary RP water RP supply and there are no interconnections with the public water system. A DC may be provided in lieu of a RP if approved by the health agency and water supplier. (c) Recycled water (1) Premises where the public water system is used to supplement AG the recycled water supply, (2) Premises where recycled water is used, other than as allowed in RP paragraph (3), and there is no interconnection with the potable water system. (3) Residences using recycled water for landscape irrigation as part DC of an approved dual plumbeduse area established pursuant to sections 60313 through 6031.6 unless the recycled water supplier obtains approval of the local public water supplier, or the Department if the water supplier is also the supplier of the recycled water, to utilize an alternative backflowprotection plan that includes an annual inspection and annual shutdown test of the recycled water and potable water systems pursuant to subsection 60316(a). (d) Fire Protection Systems 19 Last updated Judy 1, 2014-fi'am Titles 17 and 22 California Code of Regulations California Regulations Related to Drfraldng Water NOTE: This publication is meant to bean aid to the stgff ofthe CDPI-lDrinking Water Program and cannot he relied upon by the regulated community as the State ofCal#brnia's representation of Phe law. The published codes are the only official representation of the law. Refer to the published code"Ji this case, 17 CCR and 22 CCR whenever specie citations are required. Statutes related to CDPH's drinldng water -related activities are in the Health & Sgfety Code, the Water Code, and other codes. (1) Premises where the fire system is dieaotly supplied from the DC public water system and there is an unapproved auxiliary water supply on or to the promises (not interconnected). (2) Premises where the fire system is supplied from the public water AG system and interconnected with an unapproved auxiliary water supply. A RP may be provided in lieu of an AG if approved by the health agency and water supplier. (3) Premises where the fire system is supplied from the public water DC system and where either elevated storage tanks or fire pumps which take suction from private reservoirs or tanks are used. (4) Premises where the fire system is supplied from the public water DC system and where recycled water is used in a separate piping system within the same building. (e) Dockside Watering Points and Marine Facilities (1) Pier hydrants for supplying water to vessels for any purpose. RP (2) Premises where there are marine facilities. RP (f) Premises where entry is restricted so that inspections far cross- RP connections cannot be made with sufficient frequency or at sufficiently short notice to assure that do not exist. (g) Premises where there is a repeated history of cross connections being RP established or reestablished. §7605.3'esting and maintenanoc of baekflnw preventersa (a} The water supplier shall assure that adequate maintenance and periodic testing are provided by the water user to ensure their proper operation. {b) Bacicflowpreventers shall be tested by persons who have demonstrated their competency in testing of these devices to the water supplier or health agency. (a) Backflow proverrters shall be tested at least annually or more frequently if determined to bo necessary by the health agency or water supplier. When devices are found to be defective, they shall be repaired or replaced in accordance with the provisions of this Chapter. (d) Backflow preventers shall be testgd immediately after they are installed, relocated or repaired and not placed in cervico unless they are functioning as required. (e) The water supplier shall notify the water user when testing of backRow preventers is needed. The notice shall contain the date when the tesk must be completed. () Reports of testing and maintenance shall be maintained by the water supplier for a minimum of three years. KE Lasd updated July 1, 201 A from Tidies 17 and 22 California Code of Regulations California Iteguladions Related to Drinking Water