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Record of Decision System (RODS)

WEST VIRGINIA ORDNANCE (USARMY)

Abstract

Site Name:  WEST VIRGINIA ORDNANCE (USARMY)
Address:  ROUTE 1 BOX 125 
City & State:  POINT PLEASANT  WV  25550
County:  MASON
 
EPA ID:  WVD980713036
EPA Region:  03
 
NPL Status:  Currently on the Final NPL
 
ROD Type:  Record of Decision
ROD ID:  EPA/ROD/R03-88/053
ROD Date:  09/30/1988
Operable Unit(s):  02
 
Media:  GROUNDWATER SEDIMENTS SOIL
 
Contaminant:  LEAD
 
Abstract:  THE WEST VIRGINIA ORDNANCE (WVO) SITE COVERS APPROXIMATELY 8,323 ACRES IN MASON COUNTY, WEST VIRGINIA. IT IS LOCATED ON THE EAST BANK OF THE OHIO RIVER. ALMOST ONE THIRD OF THE SITE IS OCCUPIED BY A 2,788-ACRE WILDLIFE STATION CONTAINING MORE THAN 30 SHALLOW PONDS CREATED TO PROMOTE A WETLAND/TERRESTRIAL HABITAT FOR VARIOUS WILDLIFE SPECIES. ESTABLISHED IN 1942, THE WVO PLANT MANUFACTURED EXPLOSIVES, SPECIFICALLY TNT, FROM TOLUENE. GENERAL CHEMICAL DEFENSE CORPORATION OF NEW YORK OPERATED THE PLANT UNTIL 1945. RED AND YELLOW WATER (LIQUID WASTES) WERE PRODUCED DURING THE TNT MANUFACTURING PROCESS. YELLOW WATER WAS DISCHARGED TO THE MILL CREEK DRAINAGE SYSTEM, WHICH EVENTUALLY DRAINS INTO THE OHIO RIVER; RED WATER WAS DISCHARGED DIRECTLY TO THE OHIO RIVER THROUGH A PIPE LOCATED ABOUT ONE FOOT OFFSHORE. RETENTION PONDS WERE CONSTRUCTED TO REGULATE THE DISCHARGE OF RED AND YELLOW WATER TO THE RIVER. TNT AND ASSOCIATED BY-PRODUCTS WERE BURNED ONSITE. IN MAY 1981, RANGER OFFICIALS OBSERVED A SEEP OF RED WATER ADJACENT TO A POND LOCATED ON THE WILDLIFE STATION. UPON EXAMINATION, GROUND WATER DISCHARGING TO THIS POND WAS FOUND TO BE CONTAMINATED BY DI- AND TRINITROTOLUENES AND PHENOL. LOCALIZED CONTAMINATION OF THE SHALLOW GROUND WATER AND DISCHARGE TO SURFACE WATER HAVE BEEN DOCUMENTED IN THE VICINITY OF THE TNT MANUFACTURING AREA, THE BURNING GROUNDS, SEDIMENTS OF SURFACE WATER RECEIVING CONTAMINATION, AND FORMER WASTEWATER STORAGE LAGOONS. EVIDENCE ALSO INDICATES THAT SOILS OF THE INDUSTRIAL AREA, PROCESS FACILITIES, AND INDUSTRIAL WASTEWATER FACILITIES ARE CONTAMINATED BY TNT AND ASSOCIATED BY-PRODUCTS (NITROAROMATICS). BASED ON THE HYDROGEOLOGIC SETTING OF WVO, THERE IS POTENTIAL FOR CONTAMINATION TO MIGRATE VIA SURFACE WATER AND/OR GROUND WATER PATHWAYS TO DEEPER LAYERS OF AN UNDERLYING POTABLE AQUIFER OR TO THE OHIO RIVER. CONTAMINANT MIGRATION IS POSSIBLE TOWARD THE CITY OF POINT PLEASANT AND CAMP CONLAY COMMUNITY POTABLE WATER SUPPLIES. THE PRIMARY CONTAMINANTS OF CONCERN AFFECTING THE SOIL, SEDIMENTS, AND GROUND WATER ARE NITROAROMATICS AND LEAD.

THE SELECTED REMEDIAL ACTION FOR THIS SITE ADDRESSES THREE DISTINCT AREAS OF CONTAMINATION. THESE REMEDIES INCLUDE: AREA 1 - PURCHASE OF CONTAMINATED LAND AND CONTROL OF LAND USE, PLACING A SOIL COVER OVER THE CONTAMINATED AREA, AND INCORPORATING THE AREA INTO THE EXISTING WILDLIFE PRESERVE; GROUND WATER PUMP AND TREATMENT TO NITROAROMATICS CRITERIA WITH DISCHARGE TO SURFACE WATER; MONITORING DISCHARGE FROM THE GROUND WATER TREATMENT SYSTEM TO ENSURE COMPLIANCE WITH THE STREAM STANDARDS; AND PERIODICALLY INSPECTING AND MAINTAINING THE SOIL COVER IN A STABLE CONDITION. AREA 2 - RELOCATING PONDS 1 AND 2, FILLING THEM WITH CLEAN MATERIAL AND COVERING THEM WITH A SOIL AND CLAY CAP; GROUND WATER PUMP AND TREATMENT TO NITROAROMATICS CRITERIA WITH DISCHARGE TO SURFACE WATER; AND MONITORING EFFLUENT FROM THE TREATMENT SYSTEM TO ENSURE COMPLIANCE WITH SURFACE WATER CRITERIA. AREA 3 - INSTALLING A SOIL COVER OVER THE WEST WELL AREA AND THE SEEP AREA; GROUND WATER PUMP AND TREATMENT TO NITROAROMATICS CRITERIA WITH DISCHARGE TO SURFACE WATER; MONITORING EFFLUENT FROM THE TREATMENT SYSTEM TO ENSURE COMPLIANCE WITH SURFACE WATER CRITERIA; AND PERIODICALLY INSPECTING AND MAINTAINING THE SOIL COVER IN A STABLE CONDITION. THE ESTIMATED PRESENT WORTH FOR THIS REMEDIAL ACTION IS $3,365,000, WITH ESTIMATED O&M COST OF $216,500.
 
Remedy:  THE SELECTED REMEDY WILL PROVIDE PROTECTION OF HUMAN HEALTH AND THE ENVIRONMENT BY CONTAINING SOIL/SEDIMENT CONTAMINATION AND ELIMINATING FURTHER CONTAMINATION OF THE GROUNDWATER AQUIFER. THE GROUND WATER EXTRACTION SYSTEM WILL REMOVE CONTAMINANTS FROM THE GROUNDWATER AND WILL IMPROVE GROUNDWATER QUALITY.

THERE ARE THREE (3) DISTINCT AREAS OF CONTAMINATION (ACIDS AREA/YELLOW WATER RESERVOIR AREA, RED WATER RESERVOIR AREA, AND POND 13/WET WELL AREA) AND THE PREFERRED REMEDY FOR EACH ONE IS AS FOLLOWS:

I. ACIDS AREA/YELLOW WATER RESERVOIR: ALTERNATIVE 4A

- PURCHASE OF LANDS WITHIN THE INDUSTRIAL PARK ENCOMPASSING THE CONTAMINATION, PLACING A SOIL COVER OVER THE CONTAMINATED AREA, INCORPORATING THE AREA INTO THE EXISTING WILDLIFE PRESERVE.
- EXTRACTING AND TREATING THE GROUND WATER UNTIL THE CRITERIA FOR NITROAROMATICS ARE ATTAINED.
- DISCHARGE FROM THE GROUND WATER TREATMENT SYSTEM WILL ACHIEVE THE STREAM STANDARD AND WILL BE MONITORED TO ASSURE COMPLIANCE.
- SOIL COVER WILL BE PERIODICALLY INSPECTED AND MAINTAINED IN A STABLE CONDITION.

II. RED WATER RESERVOIR: ALTERNATIVE 4A - RELOCATION OF PONDS 1 AND 2.

- EXTRACTING AND TREATING THE GROUND WATER UNTIL THE CRITERIA FOR NITROAROMATICS ARE ATTAINED.
- EFFLUENT FROM THE TREATMENT SYSTEM WILL MEET THE SURFACE WATER CRITERIA AND WILL BE MONITORED TO MAINTAIN COMPLIANCE.
- PONDS 1 AND 2 WILL BE FILLED WILL CLEAN FILL (SOIL AND CLAY COVER).

III. POND 13/WET WELL AREA: ALTERNATIVE 4A

- SOIL COVER WILL BE INSTALLED OVER THE WET WELL AREA AND THE SEEP AREA.
- EXTRACTING AND TREATING THE GROUND WATER UNTIL THE CRITERIA FOR NITROAROMATICS AREA ATTAINED.
- EFFLUENT FROM THE TREATMENT SYSTEM WILL MEET THE SURFACE WATER CRITERIA AND WILL BE MONITORED TO MAINTAIN COMPLIANCE.
- SOIL COVER WILL BE PERIODICALLY INSPECTED AND MAINTAINED IN A STABLE CONDITION.
 
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