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Record of Decision System (RODS)

CRYOCHEM, INC.

Abstract

Site Name:  CRYOCHEM, INC.
Address:  ROUTE 562 
City & State:  WORMAN TOWNSHIP  PA  19512
County:  BERKS
 
EPA ID:  PAD002360444
EPA Region:  03
 
NPL Status:  Currently on the Final NPL
 
ROD Type:  Record of Decision
ROD ID:  EPA/ROD/R03-90/097
ROD Date:  09/28/1990
Operable Unit(s):  02
 
Media:  GROUNDWATER
 
Contaminant:  VOCS, PCE, TCE, OTHER ORGANICS, DCA, DCE, TCA
 
Abstract:  THE 19-ACRE CRYO-CHEM SITE IS A METAL FABRICATING FACILITY IN WORMAN, EARL TOWNSHIP, BERKS COUNTY, PENNSYLVANIA. A WOODLAND AREA IS LOCATED NORTHEAST OF THE SITE, AND AN ONSITE STREAM HAS BEEN IDENTIFIED WEST OF THE CONTAMINANT AREA. BETWEEN 1970 AND 1982, CHEMICAL SOLVENTS WERE USED AT THE FACILITY AT A RATE OF TWO TO THREE 55-GALLON DRUMS PER YEAR. DURING THIS TIME, A CHEMICAL SPILL OCCURRED AT CRYO-CHEM, BUT CANNOT BE DEFINITELY LINKED TO THE SOURCE OF CONTAMINATION. WELL SAMPLING CONDUCTED DURING 1985 AND 1987 SHOWED GROUND WATER CONTAMINATION IN MONITORING AND RESIDENTIAL WELLS WITHIN 1 MILE OF THE SITE, WHICH LED TO A REMOVAL ACTION THAT REQUIRED THE INSTALLATION OF ACTIVATED-CARBON FILTER UNITS IN 14 AFFECTED HOMES. IN 1989, A RECORD OF DECISION (ROD) WAS SIGNED FOR OPERABLE UNIT ONE (OU1), WHICH PROVIDED FOR THE INSTALLATION OF A NEW WATER SUPPLY WELL OUTSIDE OF THE CONTAMINANT PLUME AND HOOKUPS FOR ALL AFFECTED AND POTENTIALLY AFFECTED RESIDENTS. THIS ROD ADDRESSES OU2, THE TREATMENT OF THE GROUND WATER AND CONTAINMENT OF THE CONTAMINANT PLUME. A SUBSEQUENT ROD WILL ADDRESS REMEDIATION OF THE SOURCE OF THE CONTAMINATION ONSITE (OU3). THE PRIMARY CONTAMINANTS OF CONCERN AFFECTING THE GROUND WATER ARE VOCS INCLUDING PCE AND TCE; AND OTHER ORGANICS INCLUDING DCA, DCE, AND TCA.

THE SELECTED REMEDIAL ACTION FOR THIS SITE INCLUDES PUMPING AND TREATMENT OF GROUND WATER USING AIR STRIPPING, FOLLOWED BY CARBON ADSORPTION, IF EMISSIONS ARE ABOVE CLEAN AIR ACT LEVELS, WITH ONSITE DISCHARGE OF TREATED WATER TO SURFACE WATER; OTHER DISCHARGE OPTIONS WILL BE CONSIDERED AS NECESSARY, INCLUDING OFFSITE DISCHARGE TO A DOWNSTREAM WASTEWATER TREATMENT FACILITY OR REINJECTION AT THE SITE, DEPENDING ON THE DISCHARGE RATE; AND GROUND WATER AND SURFACE WATER MONITORING. THE ESTIMATED PRESENT WORTH COST FOR THIS REMEDIAL ACTION IS $2,065,000, WHICH INCLUDES AN ANNUAL O&M COST OF $75,200 FOR 30 YEARS.

PERFORMANCE STANDARDS OR GOALS; GROUND WATER WILL BE REMEDIATED TO MEET SDWA MCLS, OR TO AN EXCESS CANCER-RISK LEVEL OF 10 6 OR LESS, IF NO CURRENT MCL EXISTS FOR A PARTICULAR CONTAMINANT. SPECIFIC GOALS FOR GROUND WATER INCLUDE DCE 0.007 MG/L (MCLS), PCE 5 UG/L (PROPOSED MCL), TCA 0.2 MG/L (MCLS), TCE 5 UG/L (MCL). SURFACE WATER MUST MEET CLEAN WATER ACT FEDERAL WATER QUALITY CRITERIA (FWQC) INCLUDING PCE 0.8 UG/L (FWQC) AND TCE 2.7 UG/L (FWQC) FOR BOTH WATER AND FISH INGESTION.
 
Remedy:  THIS OPERABLE UNIT IS THE SECOND OF THREE OPERABLE UNITS FOR THE SITE. THIS OPERABLE UNIT ADDRESSES GROUND WATER CONTAMINATION WHICH IS THE PRINCIPAL THREAT POSED BY THE SITE.

THE MAJOR COMPONENTS OF THE SELECTED REMEDY INCLUDE;

* COMPLETION OF A GROUND WATER REMEDIAL DESIGN STUDY TO DETERMINE THE MOST EFFICIENT DESIGN FOR A GROUND WATER TREATMENT SYSTEM.
* INSTALLATION, OPERATION, AND MAINTENANCE OF GROUND WATER EXTRACTION WELLS TO REMOVE CONTAMINATED GROUND WATER FROM BENEATH THE SITE AND TO PREVENT CONTAMINANTS FROM MIGRATING TO CURRENTLY UNAFFECTED AREAS.
* INSTALLATION, OPERATION, AND MAINTENANCE OF AIR STRIPPING TOWERS TO TREAT GROUND WATER TO APPLICABLE LEVELS.
* CONSTRUCTION, OPERATION, AND MAINTENANCE OF A PIPELINE FROM THE AIR STRIPPING TOWERS TO SURFACE WATER NEAR THE SITE TO DISCHARGE TREATED GROUND WATER.
* PERIODIC GROUND WATER MONITORING TO ENSURE THAT THE REMEDY IS EFFECTIVE.
 
Text:  View full-text ROD [ 69K ]
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