Term
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Definition
| water supply whose potability is regulated by a state of local health agency |
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Term
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Definition
| any water supply other than that received from a public water system |
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Definition
| an open or non pressure receinving vessel. an approved AG shall be a least double the diameter of the supply pipe measured vertically above the overflow rim of the vessel. in no case less than one inch |
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Term
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Definition
| an official standard developed and approved by the american water works association |
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Term
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Definition
| 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 substance that is not/cannot be approved as safe wholesome and potable. |
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Term
| double check valve assembly (DC) |
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Definition
| an assembly of 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 water tightness of each check valve |
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Definition
| the california department of health services or local health officer with respect to a small water system |
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Definition
| the county or city health authority |
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Definition
| wastewater as a result of treatment suitable for uses other than potable use |
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Term
| reduced pressure principle backflow prevention device (RP) |
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Definition
| backflow preventer incorporating not less than two check valves and automatically operated differential relief valve located between the two check valves, a tightly closing shutoff valve on each side of the check valve assembly and equipped with necessary test cocks for testing |
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Term
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Definition
| the point of connection of a users piping to the water suppliers facilities |
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Term
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Definition
| the person who owns or operates the public water system |
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Term
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Definition
| any person obtaining water from a public water supply |
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Term
| pressure style vacuum breakers (PVB) |
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Definition
| can provide adequate user connection cross connection control for median strip irrigation systems |
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Term
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Definition
| capable for being reached for testing or maintenance |
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Term
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Definition
| any elevation of pressure in the downstream piping system above the supply pressure at the point of consideration that would cause the reversal of direction of flow |
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Term
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Definition
| a form of backflow due to the reduction in system pressure which caused a subatmospheric pressure to exist in at a sight in the water system |
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Term
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Definition
| an impairment of the quality of the water which creates an actual hazard to the public health through poisoning or through the spread of disease by sewage or industrial fluids waste etc... |
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Term
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Definition
| when an avb, pvb, or svb does not bear a crtical leval marking. the bottom of the assembly shall constitute the critical level |
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Term
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Definition
| the appropriate type or method of backflow prevention within a customers potable water system at the point of use compatible with the degree of hazard |
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Term
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Definition
| the public or private owner or operator of the potable water system supplying an approved water supply to the public |
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