EPA waiver of ground water cleanup standards in NY
- Environmental Protection Agency, New York, NY (United States)
EPA may invoke a technical impracticability (TI) waiver at a site when the Agency determines that it is technically impracticable from an engineering perspective to attain cleanup standards within a reasonable time period. The October 6, 1994 TI waiver of ground water cleanup standards at the G.E./Moreau Superfund Site in New York is the first post-Record of Decision (ROD) TI waiver granted by EPA since issuance of the September 1993 guidance on technical impracticability of ground water restoration. In the 1987 ROD, EPA selected natural gradient flushing and treatment as the ground water remedy and estimated that TCE-contaminated ground water within the unconsolidated aquifer at the Site would be restored to drinking water quality within decades. EPA`s subsequent reevaluation showed that cleanup of the ground water would take 200 years or more, regardless of the remedial technology employed, due to the presence of site-specific physical and chemical factors that limit the effectiveness of ground water remediation technologies. Following public participation activities, EPA issued the TI waiver as an Explanation of Significant Differences (ESD) to the ROD. The ESD revised the time frame expected for ground water restoration but did not reduce or change any of the required cleanup actions.
- OSTI ID:
- 116334
- Report Number(s):
- CONF-9507173-; ISBN 0-7844-0095-4; TRN: IM9545%%303
- Resource Relation:
- Conference: Innovative technologies for site remediation and hazardous waste management, Pittsburgh, PA (United States), 23-26 Jul 1995; Other Information: PBD: 1995; Related Information: Is Part Of Innovative technologies for site remediation and hazardous waste management: Proceedings of the national conference; Vidic, R.D.; Pohland, F.G. [eds.] [Univ. of Pittsburgh, PA (United States). Dept. of Civil and Environmental Engineering]; PB: 765 p.
- Country of Publication:
- United States
- Language:
- English
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