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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/R03-87/034
ROD Date:  03/27/1987
Operable Unit(s):  01
 
Media:  GROUNDWATER SEDIMENTS SOILS SURFACE WATER
 
Contaminant:  ASBESTOS, NITROAROMATIC RESIDUES, 1,3,5-TNB, 2,4-DNT, 2,4,6-TNT
 
Abstract:  THE WEST VIRGINIA ORDNANCE WORKS (WVOW) SITE COVERS APPROXIMATELY 8,323 ACRES IN MASON COUNTY, WEST VIRGINIA. IN 1942, WVOW WAS ESTABLISHED AS A GOVERNMENT-OWNED, CONTRACTOR-OPERATED PLANT FOR THE MANUFACTURE OF TRINITROTOLUENE EXPLOSIVES (TNT). APPROXIMATELY ONE-THIRD OF THE AREA IS CURRENTLY OCCUPIED BY THE MCCLINTIC WILDLIFE STATION WHICH IS OPERATED BY THE WEST VIRGINIA DEPARTMENT OF NATURAL RESOURCES (DNR). SMALLER PORTIONS OF THE NONINDUSTRIAL AREAS OF THE SITE WERE DECLARED EXCESS AND SOLD AND ARE NOW OWNED BY MASON COUNTY OR BY PRIVATE OWNERS. TNT WAS PRODUCED FROM 1942-1945 BY A BATCH PROCESS INVOLVING THE NITRATION OF TOLUENE BY THE ADDITION OF NITRIC ACID AND SULFURIC ACID. PRODUCTION DURING WORLD WAR II RESULTED IN CONTAMINATION OF THE SOILS OF THE INDUSTRIAL AREA, PROCESS FACILITIES, AND INDUSTRIAL WASTE WATER DISPOSAL FACILITIES BY TNT, ASSOCIATED BY PRODUCTS AND ENVIRONMENTAL TRANSFORMATION PRODUCTS. AT THE CLOSE OF OPERATIONS IN 1945, WVOW WAS DECONTAMINATED BY THE DEPARTMENT OF DEFENSE AND PLACED ON STANDBY STATUS. LATER THAT YEAR, THE PLANT WAS DECLARED SURPLUS AND THE FACILITIES SALVAGED OR DISPOSED OF. THE PRIMARY CONTAMINANTS OF CONCERN INCLUDE; NITROAROMATIC RESIDUES, 2,4,6-TNT, 1,3,5-TNB, 2,4-DNT AND ASBESTOS. CONTAMINATED MEDIA INCLUDE; SURFACE AND SUBSURFACE SOILS, INDUSTRIAL SEWER LINES; UNDERLYING SHALLOW AQUIFER OF THE TNT MANUFACTURING AREA; TRUNK SEWER LINES LEADING FROM POND 13 TO OUTFALLS; SURFACE WATER AND SEDIMENTS OF POND 13; SURFACE SOILS IN THE EAST AND WEST BURNING GROUNDS; SOILS/SEDIMENTS WHICH ERODED FROM THE CONTAMINATED SOURCES.

IN JANUARY 1986, EPA AND DOD MUTUALLY AGREED TO DIVIDE SUBSEQUENT STUDIES AT THE SITE INTO TWO OPERABLE UNITS AND THAT REMEDIAL EFFORTS FOR THE FIRST OPERABLE UNIT WOULD BE INITIATED WHILE ADDITIONAL DATA IS GATHERED FOR THE AREAS IN THE SECOND OPERABLE UNIT. THEREFORE, THE SELECTED REMEDIAL ACTION FOR THE FIRST OPERABLE UNIT INCLUDES;
- IN-SITU FLAMING OF THE REACTIVE TNT RESIDUE ON THE SURFACE OF THE BURNING GROUNDS AREA FOLLOWED BY THE INSTALLATION OF A 2 FT. SOIL COVER (1.5 FT CLAY AND 5 FT. SOIL) OVER AREAS WITH GREATER THAN 50 PPM TOTAL NITROAROMATICS CONTAMINATION.
- INSTALLATION OF A 2 FT. SOIL COVER OVER AREAS IN THE TNT MANUFACTURING AREA WITH GREATER THAN 50 PPM TOTAL NITROAROMATICS CONTAMINATION.
- ASBESTOS FROM THE BURNING GROUNDS AREA WILL BE DISPOSED OF IN AN OFFSITE FACILITY WHICH WILL BE IDENTIFIED DURING DESIGN.
- REACTIVE SEWERLINES WILL BE EXCAVATED, FLASHED, AND BACKFILLED IN THE TRENCHES FROM WHICH THEY WERE REMOVED. ALL CONTAMINATED SOILS EXCEEDING 50 PPM AT THE SURFACE WILL BE COVERED TO ACHIEVE THE 10-6 RISK LEVEL. THE SEWERLINE WILL BE RENDERED UNREACTIVE BY FLASHING AND BURIED DEEPER THAN 2 FT. BELOW GROUND SURFACE.
- A WETLAND ASSESSMENT WILL BE PERFORMED, BEFORE CONSTRUCTION ACTIVITIES BEGIN.

THE ESTIMATED CAPITAL COST FOR THIS REMEDY IS $1,807,000. O&M COSTS WERE NOT PROVIDED.
 
Remedy:  AN OPERABLE UNIT REMEDY FOR SOURCE CONTROL TO INCLUDE;

1. IN SITU FLAMING OF THE REACTIVE TNT RESIDUE ON THE SURFACE OF THE BURNING GROUNDS AREA,
2. INSTALLATION OF A 2 FT. SOIL COVER OVER AREAS IN THE BURNING GROUND AREA WITH GREATER THAN 50 PPM TOTAL NITROAROMATICS CONTAMINATION.
3. INSTALLATION OF A 2 FT. SOIL COVER OVER AREAS IN THE TNT MANUFACTURING AREA WITH GREATER THAN 50 PPM TOTAL NITROAROMATICS CONTAMINATION.
4. ASBESTOS FROM THE BURNING GROUNDS AREA WILL BE DISPOSED OF IN AN OFFSITE SANITARY LANDFILL.
5. REACTIVE SEWER LINES WILL BE EXCAVATED, FLASHED, AND BACKFILLED IN THE TRENCHES FROM WHICH THEY WERE REMOVED.
6. A HEALTH AND SAFETY PLAN WILL BE IMPLEMENTED FOR ALL ACTIVITIES DESCRIBED IN THIS RECORD OF DECISION. DURING EXCAVATION, FLASHING AND CONSTRUCTION ACTIVITIES AIR MONITORING WILL BE CONDUCTED TO ENSURE THE SAFETY OF THE ONSITE WORKERS AS WELL AS TO PROTECT THE RESIDENTS AND WILDLIFE LIVING NEARBY THE CONSTRUCTION AREAS.
7. A WETLANDS ASSESSMENT WILL BE PERFORMED, BEFORE CONSTRUCTION ACTIVITIES TO DELINEATE POTENTIAL WETLAND BOUNDARIES AND IDENTIFY WETLAND FUNCTIONS AND VALUES IN THE AREAS WHERE REMEDIAL ACTIONS ARE TO BE TAKEN. IMPACTS TO WETLANDS WILL BE AVOIDED. WHERE NO OTHER PRACTICAL ALTERNATIVE EXISTS, IMPACTS TO WETLANDS WILL BE MITIGATED.

THE DA IS CURRENTLY CONDUCTING AN ADDITIONAL REMEDIAL INVESTIGATION/FEASIBILITY STUDY TO EVALUATE THE SECOND OPERABLE UNIT AT WVOW. THE SECOND OPERABLE UNIT CONSISTS OF THE RED WATER RESERVOIR, ACIDS AREA/YELLOW WATER RESERVOIR AND POND 13 AREAS. A RECORD OF DECISION WILL BE PREPARED FOR THE SUBSEQUENT OPERABLE UNIT(S).
 
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