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Record of Decision System (RODS)

MW MANUFACTURING

Abstract

Site Name:  MW MANUFACTURING
Address:  STATE ROUTE 54 AND I-80 
City & State:  VALLEY TOWNSHIP  PA  17821
County:  MONTOUR
 
EPA ID:  PAD980691372
EPA Region:  03
 
NPL Status:  Currently on the Final NPL
 
ROD Type:  Record of Decision
ROD ID:  EPA/ROD/R03-90/087
ROD Date:  06/29/1990
Operable Unit(s):  03
 
Media:  SOIL DEBRIS SURFACE WATER
 
Contaminant:  VOCS, PCE, TCE, OTHER ORGANICS, PCBS, METALS, LEAD
 
Abstract:  THE 15-ACRE MW MANUFACTURING SITE IS A FORMER COPPER RECOVERY FACILITY IN MONTOUR COUNTY, PENNSYLVANIA, TWO MILES NORTH OF DANVILLE. THE PENNSYLVANIA DEPARTMENT OF TRANSPORTATION (PENNDOT) MAINTAINS A STORAGE AREA IMMEDIATELY NORTH OF THE SITE, AND FARMLANDS AND WOODED LOTS ARE ADJACENT TO THE SITE ON THE WEST AND SOUTH. MAUSES CREEK FLOWS IN A SOUTHERLY DIRECTION PAST THE SITE. SEVERAL PRIVATE RESIDENCES, MOTELS, GAS STATIONS, RESTAURANTS, AND A HEAD START SCHOOL ARE LOCATED JUST NORTH OF THE PENNDOT STORAGE AREA AND RELY ON PRIVATE GROUND WATER WELLS FOR DRINKING WATER. FROM 1966 TO 1972, MW MANUFACTURING WAS ENGAGED IN SECONDARY COPPER RECOVERY FROM SCRAP WIRE, USING BOTH MECHANICAL AND CHEMICAL PROCESSES. GRANULAR CARBON WASTES GENERATED BY THE CHEMICAL PROCESS WERE DUMPED ONSITE, AND SPENT SOLVENTS AND ACIDS WERE ALLEGEDLY DISPOSED OF ONSITE. IN 1972, MW MANUFACTURING FILED FOR BANKRUPTCY AND THE PHILADELPHIA NATIONAL BANK ACQUIRED THE PROPERTY. WAREHOUSE 81 INC. ACQUIRED THE SITE IN 1976 AND UNSUCCESSFULLY ATTEMPTED TO RECOVER COPPER FROM THE LARGE WASTE PILES OF FLUFF MATERIAL (FIBROUS INSULATION MATERIALS CONTAMINATED WITH METALS AND SOLVENTS). THE INITIAL REMEDIAL INVESTIGATION REVEALED SEVERAL AREAS POSING POTENTIAL THREATS TO PUBLIC HEALTH: THE CARBON WASTE PILE, FOUR WIRE-FLUFF WASTE PILES, A SURFACE IMPOUNDMENT, A BURIED LAGOON, AND CONTAMINATED SOIL, DRUMS AND STORAGE TANKS. A 1989 REMEDIAL ACTION ADDRESSED THE CONCERNS FOR DIRECT CONTACT WITH, AND MIGRATION OF CONTAMINANTS FROM, THE CARBON WASTE PILE BY EXCAVATING THE CARBON WASTE PILE AND INCINERATING THE WASTE OFFSITE. THIS SECOND REMEDIAL ACTION ADDRESSES THE REMAINING PRINCIPAL THREATS AT THE SITE BY TREATING THE ONSITE WASTE AND CONTAMINATED SOIL. A SUBSEQUENT REMEDIAL ACTION WILL ADDRESS POSSIBLE REMEDIATION OF CONTAMINATED GROUND WATER AND OFFIETE SOIL, SEDIMENT AND SURFACE WATER CONTAMINATION. THE PRIMARY CONTAMINANTS OF CONCERN AFFECTING THE SOIL, DEBRIS AND LAGOON WATER ARE VOCS INCLUDING PCE AND TCE; OTHER ORGANICS INCLUDING PCBS; AND METALS INCLUDING LEAD.

THE SELECTED REMEDIAL ACTION FOR THIS SITE INCLUDES EXCAVATION AND ONSITE INCINERATION OF APPROXIMATELY 32,000 CUBIC YARDS OF FLUFF WASTE, FOLLOWED BY STABILIZATION OF LEAD-CONTAMINATED ASH AND OFFSITE DISPOSAL OF RESIDUAL ASH; EXCAVATION AND ONSITE INCINERATION OF APPROXIMATELY 13,000 CUBIC YARDS OF CONTAMINATED SOIL, FOLLOWED BY ONSITE STABILIZATION, AS NECESSARY, BEFORE OFFSITE DISPOSAL; BACKFILLING AND CAPPING THE SOIL (LANDFILL CLOSURE) UNDER THE FLUFF WASTE PILES; COVERING THE SOIL NOT UNDER THE FLUFF PILES USING HYBRID CLOSURE (TOPSOIL COVER AND REVEGETATION); ONSITE TREATMENT OF APPROXIMATELY 86,000 GALLONS OF LAGOON WATER USING CARBON ADSORPTION AND METAL REMOVAL, FOLLOWED BY ONSITE DISCHARGE TO SURFACE WATER; AND ONSITE INCINERATION OF APPROXIMATELY 40 CUBIC YARDS OF WASTE CONTAINED IN TANKS AND DRUMS, FOLLOWED BY STABILIZATION OF THE ASH AND OFFSITE DISPOSAL; AND GROUND WATER MONITORING. THE ESTIMATED PRESENT WORTH COST FOR THIS REMEDIAL ACTION IS $35,950,000, WHICH INCLUDES AN ESTIMATED ANNUAL O&M COST OF $39,000 AND AN ADDITIONAL ESTIMATED $20,000 EVERY 5 YEARS.

PERFORMANCE STANDARDS OR GOALS: ACTION LEVELS HAVE BEEN ESTABLISHED FOR SOIL/WASTE BASED ON A (10-6) CANCER RISK LEVEL OR AN HI OF 1.0, WHERE TECHNICALLY FEASIBLE. IF SOIL CANNOT BE FEASIBLY CLEANED TO THE (10-6) RISK LEVEL (E.G., EXCESSIVE VOLUME OF CONTAMINATED SOIL IN ONE PARTICULAR AREA ONSITE), CLEANUP WILL REDUCE THE ADDITIONAL INCREMENTAL RISK TO THE GROUND WATER TO (10-4) LEVELS OR TO MCLS, WHICHEVER ARE MORE STRINGENT. CHEMICAL- SPECIFIC CLEANUP LEVELS FOR SOIL, FLUFF WASTE, AND DRUMMED AND TANKED WASTES WERE PROVIDED FOR EIGHT INDICATOR CONTAMINANTS INCLUDING PCE, TCE, PCB, AND LEAD.
 
Remedy:  THIS OPERABLE UNIT IS THE SECOND OPERABLE UNIT FOR THE SITE. THE FIRST OPERABLE UNIT INVOLVED REMOVAL OF THE CARBON WASTE PILE. THIS ACTION ADDRESSES THE PRINCIPAL THREATS AT THE SITE BY TREATING THE ONSITE WASTE AND CONTAMINATED SOILS. TREATMENT RESIDUALS WILL BE DISPOSED OF OFFSITE.

THE MAJOR COMPONENTS OF THE SELECTED REMEDY ARE;

* ONSITE INCINERATION OF FLUFF WASTE; STABILIZATION OF ASH AND DISPOSAL IN AN OFFSITE RCRA LANDFILL.
* ONSITE INCINERATION OF THE CONTAMINATED SOILS FOR ORGANICS REMOVAL, STABILIZATION OF THE METALS WHERE NECESSARY AND DISPOSAL IN AN OFFSITE RCRA LANDFILL.
* ONSITE TREATMENT OF THE LAGOON WATER FOR ORGANICS TREATMENT AND METALS REMOVAL AND DISCHARGE IN ACCORDANCE WITH FEDERAL NPDES AND PENNSYLVANIA REQUIREMENTS.
* ONSITE INCINERATION OF THE CONTENTS OF TANKS AND DRUMS; STABILIZATION OF THE ASH AND DISPOSAL IN AN OFFSITE RCRA LANDFILL.
* COVERING OF THE SOILS UNDER THE FLUFF WASTE PILES, ONCE THE FLUFF WASTE HAS BEEN REMOVED, IN ACCORDANCE WITH RCRA SUBTITLE CLOSURE REQUIREMENTS.

A THIRD OPERABLE UNIT WILL INVOLVE CONTINUED STUDY AND POSSIBLE REMEDIATION OF GROUNDWATER CONTAMINATION AND OFFSITE CONTAMINATION IN THE SOIL, SURFACE WATER AND SEDIMENT.
 
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