NEW CASTLE COUNTY; WILLIAM C. WARD ET AL (TYBOUTS LANDFILL) NEW CASTLE COUNTY, DE, FILED 10/8/80, CIVIL ACTION #80-489 US DIST CT FOR THE DISTRICT DE, THE 50 ACRE TYBOUTS LANDFILL WAS OPERATED AS A MUNICIPAL LANDFILL BY NEW CASTLE COUNTY FROM JAN 1969 UNTIL JUL 1971. ACCRDNG TO THE COMPLAINT, WSTES FROM THE NEW CASTLE COUNTY SITE HAVE CONTAMINATED PORTIONS OF THE COLUMBIA & POTOMAC AQUIFERS & AT LEAST 1 PRIVATE DRINKING WTR WELL. TYBOUTS IS LOCATED ON 76 ACRES OF PROPERTY OWNED BY WM AND ELIZABETH WARD. NEW CASTLE LEASED 50 ACRES FROM THE WARDS FOR USAGE AS A MUNICIPAL LANDFILL, & THE WARDS AGREED TO ASSUME JOINT RESPONSIBILITY FOR ITS OPERATION. THE LANDFILL IS SOUTH OF THE INTERSECTION OF US 13 & DELAWARE 71, & IS ABOUT 4 MILES NORTH OF THE CHESAPEAKE & DELAWARE CANAL. THE WESTERN BOUNDARY IS FORMED BY PIDGEON RIVER, A TRIBUTARY STRM OF RED LION CREEK WHICH CROSSES UNDER RTE 13 AT THE SW CORNER OF THE LANDFILL. THE NORTHERN PORTION OF THE LANDFILL ABUTS RTE 71. PORTIONS OF THE COLUMBIA & POTOMAC AQUIFERS ARE DIRECTLY BENEATH THE SITE. THE COLUMBIA AQUIFER OVERLIES THE POTOMAC AQUIFER & CONSISTS OF SEDIMENTS OF SILTY SANDS THAT DISPLAY WIDE VARIATIONS IN TEXTURE, SORTING & PERMEABILITY. THE GRNDWTR FLOW DIRECTION OF THE COLUMBIA AQUIFER IS W/SW WHILE THE FLOW DIRECTION OF THE POTOMAC AQUIFER IS IN A SOUTHERN