Page:United States Statutes at Large Volume 98 Part 3.djvu/862

 98 STAT. 3234 Post, p. 3243.

42 USC 6921.

Regulations.

Alabama. 42 USC 6925.

PUBLIC LAW 98-616—NOV. 8, 1984

"(C) such monofill meets the same requirements as are applicable in the case of a waiver under section 3005(j)(2) or (4). "(4)(A) Not later than thirty months after the date of enactment of the Hazardous and Solid Waste Amendments of 1984, the Administrator shall promulgate standards requiring that new landfill units, surface impoundment units, waste piles, underground tanks and land treatment units for the storage, treatment, or disposal of hazardous waste identified or listed under section 3001 shall be required to utilize approved leak detection systems. "(B) For the purposes of subparagraph (A)— "(i) the term 'approved leak detection system' means a system or technology which the Administrator determines to be capable of detecting leaks of hazardous constituents at the earliest practicable time; and "(ii) the term 'new units' means units on which construction commences after the date of promulgation of regulations under this paragraph. "(5)(A) The Administrator shall promulgate regulations or issue guidance documents implementing the requirements of paragraph (1)(A) within two years after the date of the enactment of the Hazardous and Solid Waste Amendments of 1984. "(B) Until the effective date of such regulations or guidance documents, the requirement for the installation of two or more liners may be satisfied by the installation of a top liner designed, operated, and constructed of materials to prevent the migration of any constituent into such liner during the period such facility remains in operation (including any post-closure monitoring period), and a lower liner designed, operated and constructed to prevent the migration of any constituent through such liner during such period. For the purpose of the preceding sentence, a lower liner shall be deemed to satisfy such requirement if it is constructed of at least a 3-foot thick layer of recompacted clay or other natural material with a permeability of no more than 1 x 1 0 " ' centimeter per second. "(6) Any permit under section 3005 which is issued for a landfill located within the State of Alabama shall require the installation of two or more liners and a leachate collection system above and between such liners, notwithstanding any other provision of this Act. "(7) In addition to the requirements set forth in this subsection, the regulations referred to in paragraph (1) shall specify criteria for the acceptable location of new and existing treatment, storage, or disposal facilities as necessary to protect human health and the environment. Within 18 months after the enactment of the Hazardous and Solid Waste Amendments of 1984, the Administrator shall publish guidance criteria identifying areas of vulnerable hydrogeology.". GROUND WATER MONITORING

Ante, p. 3233. 42 USC 6924.

SEC. 203. Section 3004 of the Solid Waste Disposal Act is amended by adding the following new subsection after subsection (o) thereof: "(p) GROUND WATER MONITORING.—The standards under this section concerning ground water monitoring which are applicable to surface impoundments, waste piles, land treatment units, and landfills shall apply to such a facility whether or not— "(1) the facility is located above the seasonal high water table;

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