§ 109.609. Reserved capacity and finished water storage.
(a) A new community water system shall be designed to provide an adequate supply of finished water during periods of peak demand. To assure continued service in the event of source contamination or outage, the design shall provide a minimum of 1 day of reserve capacity based on average daily demand or usage. Reserve capacity may be provided through finished water storage. In addition, reserve capacity may be provided through sources and interconnections not likely to be subject to the same contamination event. Sources and interconnections used for reserve capacity shall be permitted under § § 109.503 and 109.504 (relating to public water system construction permits; and public water system operation permits).
(b) Finished water storage facilities shall be completely enclosed to prevent contamination of the finished water supply. This requirement applies to existing, as well as new, finished water storage facilities. Public water suppliers with existing finished water storage facilities shall comply with this section by December 31, 1995.
Source The provisions of this § 109.609 adopted December 7, 1984, effective December 8, 1984, 14 Pa.B. 4479; amended March 24, 1989, effective March 25, 1989, 19 Pa.B. 1289; amended May 15, 1992, effective May 16, 1992, 22 Pa.B. 2621. Immediately preceding text appears at serial page (136320).
Cross References This section cited in 25 Pa. Code § 109.707 (relating to emergency response).
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