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25 Pa. Code § 109.903. Requirements for an exemption.

§ 109.903. Requirements for an exemption.

 (a)  The Department may exempt a public water system from an MCL or treatment technique requirement upon finding that:

   (1)  Due to compelling factors, the public water system is unable to comply with the contaminant level or treatment technique requirement, or to implement measures to develop an alternative source of water supply.

   (2)  The public water system was in operation on the effective date of the contaminant level or treatment technique requirement or, for a system that was not in operation by that date, only if no reasonable alternative source of drinking water is available to the new system.

   (3)  The granting of the exemption will not result in an unreasonable risk to health.

   (4)  Management or restructuring changes or both as provided in 40 CFR 142.20(b)(1)(i) (relating to State-issued variances and exemptions under Section 1415(a) and Section 1416 of the Act) cannot reasonably be made that will result in compliance with the applicable MCL or treatment technique requirement or, if compliance cannot be achieved, improve the quality of the drinking water.

 (b)  The MCL for E. coli established under §  109.202(a) (relating to State MCLs, MRDLs and treatment technique requirements) is not eligible for an exemption.

 (c)  The treatment technique requirements established under §  109.202(c), the treatment technique requirements established under § §  109.1102(b), 109.1203 and 109.1302 (relating to action levels and treatment technique requirements; bin classification and treatment technique requirements; and treatment technique requirements) are not eligible for an exemption.


   The provisions of this §  109.903 amended under section 4 of the Pennsylvania Safe Drinking Water Act (35 P.S. §  721.4); and section 1920-A of The Administrative Code of 1929 (71 P.S. §  510-20).


   The provisions of this §  109.903 adopted December 7, 1984, effective December 8, 1984, 14 Pa.B. 4479; amended May 15, 1992, effective May 16, 1992, 22 Pa.B. 2621; amended December 23, 1994, effective December 24, 1994, 24 Pa.B. 6404; amended July 20, 2001, effective July 21, 2001, 31 Pa.B. 3895; amended December 24, 2009, effective December 26, 2009, 39 Pa.B. 7279; amended September 23, 2016, effective September 24, 2016, 46 Pa.B. 6005. Immediately preceding text appears at serial pages (347154) to (347155).

Cross References

   This section cited in 25 Pa. Code §  109.906 (relating to consideration of a request for a variance or exemption); and 25 Pa. Code §  109.908 (relating to compliance schedules).

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