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Record of Decision System (RODS)

BENDIX FLIGHT SYSTEMS DIVISION

Abstract

Site Name:  BENDIX FLIGHT SYSTEMS DIVISION
Address:  MONTROSE PLT 
City & State:  SOUTH MONTROSE  PA  18843
County:  SUSQUEHANNA
 
EPA ID:  PAD003047974
EPA Region:  03
 
NPL Status:  Currently on the Final NPL
 
ROD Type:  Record of Decision
ROD ID:  EPA/ROD/R03-88/059
ROD Date:  09/30/1988
Operable Unit(s):  01
 
Media:  GROUNDWATER SOIL
 
Contaminant:  VTOC, TCE
 
Abstract:  THE BENDIX SITE IS AN AIRCRAFT INSTRUMENTS MANUFACTURING PLANT LOCATED NEAR THE VILLAGE OF SOUTH MONTROSE, BRIDGEWATER TOWNSHIP, SUSQUEHANNA COUNTY, PENNSYLVANIA. THE 60- ACRE SITE IS SITUATED IN A SPARSELY POPULATED AREA (APPROXIMATELY 500 PEOPLE) ATOP A TOPOGRAPHIC DIVIDE BETWEEN MESHOPPEN CREEK AND WYALUSING CREEK WATERSHEDS. NATURAL GROUND WATER DISCHARGE AREAS EXIST EAST OF THE SITE IN A WETLANDS AREA OF MESHOPPEN CREEK, AND WEST OF THE SITE AT THE HEADWATERS OF WYALUSING CREEK. THE BENDIX CORPORATION(BENDIX) ACQUIRED THE PARCELS OF LAND COMPRISING THE SITE IN 1951 AND 1952, AND WAS AQUIRED BY ALLIED CORPORATION(ALLIED) IN 1983, AND FINALLY MERGED INTO ALLIED IN 1985; ALLIED IS THE CURRENT OWNER OF THE PROPERTY. FROM 1952 TO 1958 INDUSTRIAL SOLVENT WASTES WERE DISPOSED OF IN A LAGOON NORTHEAST OF THE PLANT, AND FOR SEVERAL YEARS SIMILAR WASTES ALSO WERE DISPOSED OF IN A SERIES OF ONSITE SMALL TRENCHES EAST OF THE PLANT. IN ADDITION, FROM THE EARLY 1950S UNTIL 1978, AN EARTHEN DISPOSAL PIT INSTALLED BY BENDIX WAS USED FOR THE DISPOSAL OF WATER-SOLUBLE CUTTING OIL AND OIL-CONTAMINATED WATER FROM AIR COMPRESSORS. THE BASIN WAS DRAINED OF FREE LIQUIDS, BACKFILLED,AND SEEDED IN LATE 1978. INVESTIGATIONS PERFORMED BY BENDIX FROM 1984 THROUGH 1987 INDICATED THAT AS A RESULT OF PAST DISPOSAL PRACTICES, CONTAMINATION FROM SUBSURFACE SOIL HAS BEEN LEACHING INTO THE UNDERLYING GROUND WATER. FIVE SOURCE AREAS OF CONTAMINATION HAVE BEEN IDENTIFIED AT THE SITE: A TCE STORAGE TANK AREA, THE PET/TRENCH AREA, AN OLD LANDFILL AREA, THE AREA OF A FORMER SOLVENT EVAPORATION FACILITY, AND A FORMER DRUM STORAGE AREA BEHIND THE PLANT BUILDING. BENDIX IS CURRENTLY SUPPLYING CARBON FILTER UNITS TO USERS OF AFFECTED WELLS. THE PRIMARY CONTAMINENTS OF CONCERN AFFECTING THE GROUND WATER AND SOIL ARE VOCS INCLUDING TCE.

THE SELECTED REMEDIAL ACTION FOR THIS SITE INCLUDES: SOIL VACUUM EXTRACTION AND SOIL AERATION; ON SITE GROUND WATER PUMP AND TREATMENT WITH AIR STRIPPING; AND TREATMENT OF OFFSITE GROUND WATER CONTAMINATION THROUGH CARBON ABSORBTION AT THE WELL HEADS. THE ESTIMATED PRESENT WORTH COSTS FOR THIS REMEDIAL ACTION IS $4,487,000 WITH ANNUAL O&M COSTS OF $542,000.
 
Remedy:  THE SELECTED REMEDY INCLUDES THE USE OF TWO INNOVATIVE TECHNOLOGIES WHICH ARE TO BE APPLIED TO THE SOIL CONTAMINATION. THESE TECHNOLOGIES ARE SOIL VACUUM EXTRACTION AND SOIL AERATION. IN ADDITION GROUNDWATER WILL BE PUMPED AND TREATED ON-SITE AND OFF-SITE GROUNDWATER CONTAMINATION WILL BE TREATED AT EACH RESIDENTIAL WELL LEAD PRIOR TO HUMAN CONSUMPTION AND USE. THESE SELECTED SITE REMEDIES ATTEMPTS TO ENSURE COMPLIANCE WITH ALL ARARS, BUT AT A MINIMUM WILL BE CONSISTENT, TO THE EXTENT PRACTICABLE, WITH THOSE SPECIFIED HEREIN.
 
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