Nonpotable aquifer exemptions for Class VI wells

(a) Revision required Not later than 180 days after the date of enactment of this Act, the Administrator shall revise such regulations as the Administrator determines to be appropriate, including sections 144.7 and 146.4 of title 40, Code of Federal Regulations, to provide for exemptions that allow the use of nonpotable aquifers for Class VI wells. (b) Regulatory requirement In carrying out the revisions required under subparagraph (A), the Administrator shall designate an aquifer, or portion of an aquifer, as an aquifer subject to the exemption described in subparagraph (A) if— (1) (A) the aquifer, or portion of the aquifer, does not currently serve as a source of drinking water; and (B) the aquifer, or portion of the aquifer, cannot now and will not in the future serve as a source of drinking water; or (2) (A) the total dissolved solids content of the ground water from the aquifer, or portion of the aquifer, is more than 3,000 mg/l and less than 10,000 mg/l; and (B) the aquifer, or portion of the aquifer, is not reasonably expected to supply a public water system.

(a) Revision required Not later than 180 days after the date of enactment of this Act, the Administrator shall revise such regulations as the Administrator determines to be appropriate, including sections 144.7 and 146.4 of title 40, Code of Federal Regulations, to provide for exemptions that allow the use of nonpotable aquifers for Class VI wells. (b) Regulatory requirement In carrying out the revisions required under subparagraph (A), the Administrator shall designate an aquifer, or portion of an aquifer, as an aquifer subject to the exemption described in subparagraph (A) if— (1) (A) the aquifer, or portion of the aquifer, does not currently serve as a source of drinking water; and (B) the aquifer, or portion of the aquifer, cannot now and will not in the future serve as a source of drinking water; or (2) (A) the total dissolved solids content of the ground water from the aquifer, or portion of the aquifer, is more than 3,000 mg/l and less than 10,000 mg/l; and (B) the aquifer, or portion of the aquifer, is not reasonably expected to supply a public water system.