Agenda Packet_2025-10-21 - Laserfiche WebLink

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(5) Temporary removal for replacement. A device may be removed and replaced, provided water use is discontinued until the replacement device is installed. All replacement devices must be approved by the agency prior to being put into service and must be commensurate with the degree of hazard involved. A retest will be required, prior to return to service, following the replacement of the device. (g) Water system survey. (1) Plans and specifications must be submitted to the agency upon request for review of possible cross- connection hazards for new or existing service connections. If it is determined that a device is necessary to protect the public water system, the required device must be installed before service will be provided or continued. (2) The agency may conduct an on-premises inspection or reinspection to evaluate cross-connection hazards. Any customer which cannot or will not allow an on-premises inspection of their piping system shall be required to install the device the agency considers necessary. (h) User supervisor. At each premises where it is necessary in the opinion of the agency, a user supervisor shall be designated by and at the expense of the customer. This user supervisor shall be responsible for the monitoring of the devices and for avoidance of cross-connections. In the event of contamination or pollution of the drinking water system due to a cross-connection on the premises, the agency shall be promptly notified by the user supervisor so that appropriate measures may be taken to overcome the contamination. The customer shall inform the agency of the user supervisor's identity on, as a minimum, an annual basis and whenever a change occurs. (i) Type of protection required. (1) The type of protection that shall be provided to prevent backflow into the approved water supply shall be commensurate with the degree of hazard that exists on the customer's premises. The type of device shall be one (1) of the following: (A) Approved air gap separation (hereinafter "AG"); (B) Approved double check valve assembly (hereinafter "DC"); or (C) Approved reduced pressure principle assembly (hereinafter "RP"). (2) The customer may choose a higher level of protection than required by the agency. The minimum types of backflow protection required to protect the approved water supply at the customer's water connection to premises, with varying degrees of hazard, are provided in Table 1. Situations which are not covered in Table 1 shall be evaluated on a case-by-case basis, and the appropriate backflow protection shall be determined by the agency. (3) In those instances where conditions warrant, the agency may modify the minimum installation herein indicated as appropriate to provide a degree of protection commensurate with the degree of hazard. TABLE 1. TYPE OF BACKFLOW PROTECTION REQUIRED Degree of Hazard Minimum Type of Backflow Protection 1. Aircraft and missile plants RP 2. Automotive plants RP 3. Auxiliary water systems (interconnected) RP 4. Auxiliary water systems (not interconnected) RP 5. Beverage bottling plants RP #±¤ ³¤£Ÿ ʆʂʆʉŻʂʅŻʆʍ ʅʅŸʆʆŸʅʈ Ơ%34ơ (Supp. No. 30) Page 19 of 54