§ 109.708. System service and auxiliary power.
(a) System service. No later than the dates specified in paragraphs (1)—(3), a community water supplier shall submit a certification on a certification form provided by the Department verifying completion of the uninterrupted system service plan (USSP) which was completed using the USSP form provided by the Department to ensure operation of the sources, treatment and pumping facilities necessary to ensure that safe and potable water is continuously supplied to users in accordance with subsection (b) or (c), or both. A continuous supply of safe and potable water is one that meets all applicable MCLs, MRDLs and treatment techniques specified in § 109.202 (relating to State MCLs, MRDLs and treatment technique requirements) and is sufficient to maintain system pressure specified in § 109.607 (relating to pressures) throughout the distribution system.
(1) By August 19, 2019, for systems serving 3,300 or fewer persons.
(2) By August 17, 2020, for systems serving 3,301—10,000 persons.
(3) By August 17, 2021, for systems serving greater than 10,000 persons.
(b) Auxiliary power and alternate provisions. System service must be provided through one or more of the following methods:
(1) Connection to at least two independent power feeds from separate substations.
(i) The power feeds may not be located in the same conduit or supported from the same utility pole.
(ii) If overhead power feeds are used, the power feeds may not cross or be located in an area where a single plausible occurrence (for example, a fallen tree) could disrupt both power feeds.
(2) Onsite auxiliary power sources (that is, generators or engines).
(3) A combination of alternate provisions, such as finished water storage capacity, interconnections with another public water system, portable generators and other system specific alternate provisions to meet the requirements of subsection (a).
(c) Corrective action schedule. If the USSP and certification form completed in subsection (a) identify that deficiencies exist which prevent a continuous supply of safe and potable water as specified in subsection (a), and these deficiencies are not corrected by the dates specified in subsection (a)(1)—(3), a community water supplier shall submit to the Department, within 6 months after the dates specified in subsection (a)(1)—(3), a schedule which includes detailed corrective actions to address these deficiencies, including corresponding completion dates. The schedule for completion of each corrective action must be commensurate with the complexity of the associated corrective action.
(d) Planned service interruptions. The public water supplier shall give reasonable notice to the affected customers prior to a planned service interruption affecting quantity or quality of the water delivered to the customer. If the interruption is scheduled to exceed 8 hours and affect 15 or more service connections the water supplier shall also notify the Department.
Authority The provisions of this § 109.708 amended under section 4(a) of the Pennsylvania Safe Drinking Water Act (35 P.S. § 721.4(a)); and section 1920-A(b) of The Administrative Code of 1929 (71 P.S. § 510-20(b)).
Source The provisions of this § 109.708 adopted December 7, 1984, effective December 8, 1984, 14 Pa.B. 4479; amended August 17, 2018, effective August 18, 2018, 48 Pa.B. 4974. Immediately preceding text appears at serial page (391392).
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