For the purpose of this subchapter, the following definitions shall apply unless the context clearly indicates or requires a different meaning.
AIR GAP SEPARATION/APPROVED AIR GAP SEPARATION (AG). Shall be at least double the inside diameter of the supply pipe measured vertically above the top rim of the vessel, but shall in no case be less than one inch, a physical separation between the free-flowing discharge end of a potable water supply pipeline and an open or non-pressurized receiving vessel.
APPROVED BACKFLOW PREVENTION ASSEMBLY. An assembly approved by the Director that has been manufactured in full conformance with the standards established by the American Water Works Association (AWWA) entitled "AWWA C50669 Standards for Reduced Pressure Principle and Double Check Valve Backflow Assemblies," and that has completely met the laboratory and field performance specifications of the Foundation of Cross-Connection Control and Hydraulic Research (FCCCHR) of the University of Southern California, established in the "Specifications of Backflow Prevention Assemblies."
APPROVED TESTING LABORATORY. The FCCCHR of the University of Southern California or another independent laboratory having equivalent facilities for both laboratory and field evaluation of backflow prevention assemblies approved by the Director.
APPROVED WATER SUPPLY. The source, well or plant whose potability is regulated and monitored by the health agency. This supply includes all sources, wells, pumps, tanks, equipment and appurtenances used to produce, treat or store water for public consumption or use.
AUXILIARY WATER SUPPLY. Any water supply on or available to the premises other than the city's water supply. AUXILIARY WATERS may include water from another purveyor's potable water system or any natural source(s), e.g., a well, spring, river, harbor, irrigation canal, pipeline; used water; or industrial fluids. These waters may be contaminated, polluted, and objectionable or constitute an unacceptable water source over which the city does not have sanitary control.
AWWA. The American Water Works Association.
BACKFLOW. The undesirable reversal of the flow of water, liquids, gases, mixtures or other substances into or towards the city's water system from any source other than the city's water system.
BACKFLOW PREVENTION ASSEMBLY or ASSEMBLIES. An assembly or means used to prevent backflow or back-siphonage into a potable water system.
BACKPRESSURE. A form of backflow that occurs when any elevation of pressure in the downstream piping system (by pump, elevation of piping, steam and/or air pressure) above the supply pressure at the point of consideration would cause or tend to cause a reversal of the normal flow.
BACK-SIPHONAGE. The form of backflow due to a reduction in system pressure that causes a negative or sub-atmospheric pressure to exist at a site in the water system.
CCR TITLE 17. The California Code of Regulations, Administrative Code, Title 17, Public Health, which requires the establishment of a cross-connection control and backflow prevention program.
CITY. The City of Santa Fe Springs.
CITY'S WATER SYSTEM. The city-owned water mains operated as a public utility to furnish water for domestic purposes. The SYSTEM includes all facilities between the approved water supply and the point of service such as valves, pumps, pipes, conduits, tanks, receptacles, fixtures, equipment and other appurtenances used to convey water for public consumption or use.
CONTAMINANT or CONTAMINATION. An impairment or degradation of the quality of water by the introduction of sewage, industrial fluid, used water, recycled/reclaimed water, foreign material or auxiliary water from an unapproved source to a degree that creates an actual hazard to the public health through poisoning, the spread of disease or which may impair the usefulness or quality of the water.
CROSS-CONNECTION. Any unprotected actual or potential connection or structural arrangement between the city's or a consumer's potable water system and any other source, supply or system through which it is possible to introduce into any part of the public potable system any used water, industrial fluid(s), gases, liquids, materials or substances other than the intended potable water. A bypass arrangement, jumper connection, removable section, swivel or changeover assembly and any other temporary or permanent assembly through which, or because of which, backflow can or may occur shall be considered a CROSS-CONNECTION.
CUSTOMER, USER or OWNER. Any person or organization who receives water from the city's water system.
CUSTOMER'S POTABLE WATER SYSTEM. That portion of the privately owned potable water system lying between the point of service and the point of use, including all pipes, conduits, tanks, receptacles, fixtures, equipment and appurtenances used to produce, convey, store or use potable water.
CUSTOMER'S WATER SYSTEM. Any water system located on the consumer's premises, whether supplied by the city's water system or an auxiliary water supply. The CUSTOMER'S WATER SYSTEM may be either a potable water system or an industrial piping system.
DEGREE OF HAZARD. The hazard derived from an evaluation of the conditions within a system that may be classified as either a pollution (non-health) or contamination (health) hazard.
DIRECTOR. The Director of the Public Works Department or designee.
DIRECTOR DESIGNATE. A Public Works employee that the Public Works Director determines is qualified as a cross-connection control specialist and who possesses a cross-connection control certificate from the American Water Works Association or similarly recognized agency.
DOUBLE CHECK - DETECTOR ASSEMBLY (DCDA). A specifically designed assembly composed of two independently operating, approved check valves installed as a unit between two tightly closing, resilient-seated shutoff valves and fittings with properly located test cocks for testing each check valve, along with a specific bypass water meter in series with a double check valve (DC). The meter shall register accurately for only very low rates of flow in cubic feet and shall show a registration for all rates of flow.
DOUBLE CHECK VALVE ASSEMBLY (DC). An assembly composed of two independently operating, approved check valves, including tightly closing shutoff valves attached on each end of the assembly and fitted with properly located test cocks for testing that each check valve is watertight. DC ASSEMBLIES shall be installed to protect against a non-health hazard (e.g., a pollutant).
FIRE CHIEF. That member of the Fire Department designated by the Fire Chief under § 202 of the most recent edition of the California Fire Code.
FOUNDATION (FCCCHR). The Foundation for Cross-Connection Control and Hydraulic Research of the University of Southern California.
HAZARDOUS SUBSTANCES. Any hazardous waste or hazardous substance as defined in any federal or state law or local ordinance, rule or regulation including, without limitation, the Comprehensive Environmental Response, Compensation and Liability Act of 1980 (Title 42 United States Code §§ 9601, et seq.); the Carpenter Presley Tanner Hazardous Substance Account Act (California Health and Safety Code §§ 25300, et seq.); and the Hazardous Waste Control Law (California Health and Safety Code §§ 25100, et seq.). HAZARDOUS SUBSTANCES shall also include asbestos or asbestos-containing materials, radon gas, and petroleum or petroleum fractions, whether or not defined as a hazardous substance in any such statute, ordinance, rule or regulation.
HEALTH AGENCY. Either the State of California Department of Health Services or the Los Angeles County Department of Public Health.
HOSPITAL. Any institution, place, building or agency that maintains and operates facilities for one or more persons for the diagnosis, care and treatment of human illness, including convalescence and care during and after pregnancy or which maintains and operates organized facilities for any such purposes, and to which persons may be admitted for overnight stay or longer.
INDUSTRIAL FLUIDS. Any fluid or solution that may be chemically, biologically or otherwise contaminated or polluted in a form or concentration such as to constitute a health, water system, pollution or plumbing hazard if introduced into an approved water supply. INDUSTRIAL FLUIDS include, but are not limited to, polluted or contaminated waters; all types of process waters and used waters; chemicals in fluid form; plating acids and alkalis; circulating cooling tower waters (open or closed) that may be chemically or biologically treated or stabilized with toxic substances; contaminated natural waters, such as from wells, springs, streams, rivers, harbors or irrigation canals; oils; gases; glycerin; caustic and acid solutions; and all other liquids and gaseous fluids and solutions that are intended for industrial or firefighting purposes.
POINT OF SERVICE. The terminal end of the city's water system where the city loses jurisdiction and quality control over the water at its point of delivery to the consumer's water system. In general, the POINT OF SERVICE is the downstream side of the service connection, water meter or the municipal shutoff valve.
POLLUTANT or POLLUTION. Any foreign substance (organic, inorganic or biological) present in water that tends to degrade its quality so as to constitute a non-health hazard or may impair the usefulness or quality of the water to a degree that does not create an actual hazard to the public health but which adversely and unreasonably affects such waters for domestic use.
PREMISES. Any and all areas on a customer's property which are served or have the potential to be served by the city's water system.
PUBLIC WORKS. The department in charge of the city's municipal potable water operations.
REDUCED PRESSURE - DETECTOR ASSEMBLY (RPDA). An assembly containing two independently operating 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, along with a specific bypass water meter in series with a reduced pressure principle assembly (RPP). The meter shall register accurately for only very low rates of flow in cubic feet and shall show a registration for all rates of flow. The unit shall include properly located test cocks and tightly closing, resilient-seated shutoff valves at each end of the assembly. The assembly shall operate to maintain the pressure in the zone between the two check valves at a level less than the pressure on the public water supply side of the assembly. At cessation of normal flow, the pressure between the two check valves shall be less than the pressure on the public water supply side of the assembly. In case of leakage of either of the check valves, the differential relief valve shall operate to maintain this reduced pressure by discharging to the atmosphere.
REDUCED PRESSURE PRINCIPLE ASSEMBLY (RPP). An assembly containing two independently operating 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 unit shall include properly located test cocks and tightly closing, resilient-seated shutoff valves at each end of the assembly. The assembly shall operate to maintain the pressure in the zone between the two check valves at a level less than the pressure on the public water supply side of the assembly. At cessation of normal flow, the pressure between the two check valves shall be less than the pressure on the public water supply side of the assembly. In case of leakage of either of the check valves, the differential relief valve shall operate to maintain this reduced pressure by discharging to the atmosphere.
SERVICE CONNECTION. The city's water pipe and appurtenances from the city's water main to the service connection or water meter; in particular, the point where the water purveyor loses jurisdiction and quality control over the water and its point of delivery to the customer's water system. If a meter is installed at the end of the service connection, then SERVICE CONNECTION shall mean the upstream end of the meter. There shall 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. The term SERVICE CONNECTION shall also include a water service connection from a fire hydrant and all other temporary or emergency water service connections from the city's potable water system.
UNAPPROVED WATER SUPPLY. Any water that has not been approved for human consumption by a health agency.
USED WATER. Any water that has been supplied by the city from the public potable water system to a customer's water system, but which has passed through the point of delivery and is no longer under the quality control of the water purveyor.
WATER PURVEYOR. The City of Santa Fe Springs.
(Ord. 1129, passed 6-20-23)