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RULE §265.162Water Supply

(a) Water Supply. For a lagoon constructed on or after the effective date of this subchapter, the initial fill water and make-up water shall come from a public water system as defined by 30 TAC §290.38 (relating to Definitions) or from a well that complies with the requirements of subsection (c) of this section.

(b) Water distribution system. All portions of the water distribution system shall be protected against backflow and back siphonage using a high hazard preventer such as a reduced-pressure-principle backflow preventer meeting the requirements of the American Society of Sanitary Engineering Standard 1013 2013, as amended, and approved for use in potable water systems possibly subjected to back siphonage or high back pressure or an air gap designed to ASME Standard A112.1.2.

(c) Private water supply. If the water supply providing water to the lagoon does not meet the definition of a public water system, that water supply shall comply with the following requirements.

  (1) Water supply system. The water supply system shall:

    (A) be designed to maintain a minimum pressure of 35 pounds per square inch (psi) at all points within the distribution network at flow rates of at least 1.5 gallons per minute per connection;

    (B) be designed to maintain a minimum pressure of 20 psi under combined fire and drinking water flow conditions when the system is intended to provide firefighting capability; and

    (C) maintain a minimum distribution pressure not be less than 20 psi at any time.

  (2) Bacteriological properties. Coliform testing of the well water shall be performed each month the lagoon is open for use. Records of bacteriological tests of the well water shall be kept on-site for three years and made available during inspection.

  (3) Chemical properties.

    (A) Water samples for chemical analysis obtained from the entry point to the distribution system shall be submitted to a laboratory certified by TCEQ once every three years.

    (B) The chemical analysis shall be for secondary constituent levels as set out by 30 TAC §290.118 (relating to Secondary Constituent Levels) excluding, for saline lagoons, Total Dissolved Solids.

    (C) Records of all chemical testing shall be kept on site for three years and made available during inspection.

(d) Hose bibs. Hose bibs shall be protected with a vacuum breaker.

Source Note: The provisions of this §265.162 adopted to be effective March 1, 2020, 45 TexReg 1024

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