Small water system compliance flexibility.

§ 141.93 Small water system compliance flexibility.

The compliance alternatives described in this section apply to small community water systems serving 10,000 or fewer persons and all non-transient, non-community water systems. Small community water systems and non-transient, non-community water systems with corrosion control treatment in place must continue to operate and maintain optimal corrosion control treatment until the State determines, in writing, that it is no longer necessary, and meet any requirements that the State determines to be appropriate before implementing a State approved compliance option described in this section.

(a) A small community water system and non-transient, non-community water systems that exceeds the lead trigger level but does not exceed the lead and copper action levels must collect water quality parameters in accordance with § 141.87(b) and evaluate compliance options in paragraphs (a)(1) through (4) of this section and make a compliance option recommendation to the State within six months of the end of the tap sampling period in which the exceedance occurred. The State must approve the recommendation or designate an alternative from compliance options in paragraphs (a)(1) through (4) of this section within six months of the recommendation by the water system. If the water system subsequently exceeds the lead action level it must implement the approved compliance option as specified in paragraph (b) of this section. Water systems must select from the following compliance options:

(1) Lead service line replacement. A water system must implement a full lead service line replacement program on a schedule approved by the State but not to exceed 15 years. A water system must begin lead service line replacement within one year after the State's approval or designation of the compliance option.

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