||Superfund explanation of significant difference for the record of decision : Croydon TCE, Croydon, PA.
||Environmental Protection Agency, Washington, DC. Office of Emergency and Remedial Response.
|| [U.S. Environmental Protection Agency, Office of Emergency and Remedial Response], Distributed by National Technical Information Service,
Hazardous waste sites--Pennsylvania
Hazardous materials ;
Water pollution control ;
Vinyl chloride ;
Ground water ;
Water pollution sampling ;
Water treatment ;
Water pollution monitoring ;
ESD(Explanation of Significant Difference) ;
Explanation of Significant Difference ;
Second Remedial Action ;
Record of Decision ;
Bristol Township(Pennsylvania) ;
Bucks County(Pennsylvania) ;
Volatile organic compounds ;
||Region 3 Library/Philadelphia, PA
||Some EPA libraries have a fiche copy filed under the call number shown.
||1 volume (various pagings) : illustrations, maps ; 28 cm
This significant difference exists in the areal extent and source areas(s) of the 'TCE plume' as identified in the ROD. In March 1993, a thorough review of this remedial design data and all other existing ground water data was conducted by an EPA Hydrogeologist. The resulting conclusion of this review as that the 'TCE plume' is actually two distinct and separate contaminant plumes. These two plumes flow in opposite directions and based on information gathered to date, EPA has concluded that they result from difference sources.
Cover title. "12/31/1996." "PB97-963107." "EPA/541-R-97-013." "November 1997."