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Record of Decision System (RODS)

BRODHEAD CREEK

Abstract

Site Name:  BRODHEAD CREEK
Address:  S OF MAIN ST BRG 
City & State:  STROUDSBURG  PA  18360
County:  MONROE
 
EPA ID:  PAD980691760
EPA Region:  03
 
NPL Status:  Deleted from the Final NPL
 
ROD Type:  Record of Decision
ROD ID:  EPA/ROD/R03-91/110
ROD Date:  03/29/1991
Operable Unit(s):  01
 
Media:  SOIL
 
Contaminant:  VOCS, BENZENE, TOLUENE, XYLENES, OTHER ORGANICS, PAHS, METALS, ARSENIC
 
Abstract:  THE 12-ACRE BRODHEAD CREEK SITE IS A FORMER COAL GASIFICATION PLANT IN THE BOROUGH OF STROUDSBURG, MONROE COUNTY, PENNSYLVANIA. THE SITE OCCUPIES THE FLOODPLAIN AREA AT THE CONFLUENCE OF BRODHEAD AND MCMICHAEL CREEKS. SURROUNDING LAND USE IS COMMERCIAL AND RESIDENTIAL. SITE FEATURES INCLUDE TWO EARTHEN LEVEES CONSTRUCTED TO PROTECT A NEARBY SEWAGE TREATMENT PLANT FROM POTENTIAL FLOODWATERS. FROM APPROXIMATELY 1888 TO 1944, THE COAL GASIFICATION PLANT WAS OPERATED ALONG THE WEST BANK OF BRODHEAD CREEK. THESE ACTIVITIES PRODUCED A LIQUID COAL TAR PRODUCT COMPRISED OF PAHS, WHICH WAS DISPOSED OF IN AN ONSITE OPEN PIT UNTIL THE MID-1940S. IN 1980, DURING CONSTRUCTION REPAIRS TO THE TOE OF THE FLOOD CONTROL LEVEE, COAL TAR WAS OBSERVED SEEPING INTO BRODHEAD CREEK. FROM 1981 TO 1984, SEVERAL STATE AND FEDERAL EMERGENCY RESPONSE MEASURES AND INVESTIGATIONS WERE INITIATED ONSITE. THESE INCLUDED INSTALLING FILTER FENCES AND UNDERFLOW DAMS TO INTERCEPT COAL TAR SEEPAGE, INSTALLING A COAL TAR RECOVERY PIT ON THE BANK OF BRODHEAD CREEK, AND CONSTRUCTING A SLURRY WALL TO MITIGATE ONSITE COAL TAR MIGRATION TOWARD BRODHEAD CREEK. IN ADDITION, FROM 1982 TO 1983, THE STATE AND EPA CONDUCTED A PROGRAM DESIGNED TO REMOVE COAL TAR FROM A BACKWATER CHANNEL AREA, WHICH INVOLVED EXCAVATING AND DEWATERING 900 CUBIC YARDS OF SEDIMENT AND BACKFILLING THE AREA WITH CLAY AND CLEAN SOIL. ALSO DURING THIS TIME PERIOD, THE PRPS INSTALLED RECOVERY WELLS IN THE MAIN COAL TAR POOL AND SUBSEQUENTLY REMOVED 8,000 GALLONS OF COAL TAR. THIS RECORD OF DECISION (ROD) ADDRESSES CONTAMINATED SUBSURFACE SOIL CONTAINING FREE COAL TAR, AND PROVIDES AN INTERIM REMEDY FOR THE SITE. A FUTURE ROD WILL ADDRESS ONSITE GROUND WATER CONTAMINATION AND PROVIDE THE FINAL REMEDY FOR THE SUBSURFACE SOIL. THE PRIMARY CONTAMINANTS OF CONCERN AFFECTING THE SOIL ARE VOCS INCLUDING BENZENE, TOLUENE, AND XYLENES; OTHER ORGANICS INCLUDING PAHS; AND METALS INCLUDING ARSENIC.

THE SELECTED REMEDIAL ACTION FOR THIS SITE INCLUDES AN IN-SITU INNOVATIVE ENHANCED RECOVERY PROCESS WHICH ENTAILS INSTALLING HOT WATER INJECTION AND EXTRACTION WELLS IN THE FREE COAL TAR AREAS COMPRISED OF APPROXIMATELY 200 CUBIC YARDS OF SUBSURFACE SOIL; RECOVERING BOTH COAL TAR AND PROCESS WATER FROM EXTRACTION WELLS; SEPARATING THE COAL TAR FROM THE PROCESS WATER AND DISPOSING OF THE RECOVERED COAL TAR AT AN OFFSITE PERMITTED INCINERATION FACILITY; TREATING THE PROCESS WATER; DISCHARGING A PORTION OF THE TREATED PROCESS WATER TO BRODHEAD CREEK, AND REINJECTING THE REMAINDER OF THE TREATED WATER INTO THE SUBSURFACE SOIL TO ENHANCE COAL TAR RECOVERY; CONDUCTING A TREATABILITY STUDY TO EVALUATE THE COAL TAR RECOVERY PROCESS; MONITORING GROUND WATER, SEDIMENT, AND BIOTA; AND IMPLEMENTING DEED RESTRICTIONS, AND SITE ACCESS RESTRICTIONS SUCH AS FENCING. THE ESTIMATED PRESENT WORTH COST FOR THIS REMEDIAL ACTION IS $4,120,000, WHICH INCLUDES A TOTAL O&M COST OF $1,112,000.

PERFORMANCE STANDARDS OR GOALS; THE ENHANCED RECOVERY PROCESS WILL BE APPLIED TO THE FREE COAL TAR (I.E., COAL TAR AT 100 PERCENT PORE VOLUME SATURATION) AREAS, AND WILL REMOVE AND TREAT 60-70 PERCENT OF THE FREE COAL TAR. THIS PROCESS WILL PREVENT FURTHER LEACHING OF CONTAMINANTS INTO THE SHALLOW GROUND WATER.
 
Remedy:  THIS INTERIM REMEDY (OPERABLE UNIT ONE, OR OU-1) ADDRESSES A SOURCE OF GROUND WATER CONTAMINATION LOCATED IN THE SUBSURFACE SOILS THROUGH RECOVERY AND TREATMENT OF THE PRINCIPAL SOURCE OF CONTAMINATION. THE PRIMARY OBJECTIVES OF THIS REMEDY ARE TO MINIMIZE THE MIGRATION OF CONTAMINANTS IN THE GROUND WATER, TO INITIATE THE REDUCTION OF TOXICITY, MOBILITY, AND VOLUME OF SUBSURFACE SOIL CONTAMINANTS TO GROUND WATER, AND TO COLLECT DATA ON CONTAMINANT RESPONSE TO REMEDIATION MEASURES. THIS REMEDY IS CONSIDERED AN INTERIM ACTION FOR SUBSURFACE SOIL CONTAMINATION. A FINAL ACTION ADDRESSING SUBSURFACE SOILS AND GROUND WATER WILL BE SELECTED IN A LATER ROD AFTER DATA GENERATED DURING THE IMPLEMENTATION OF THE INTERIM ACTION IS EVALUATED AND FURTHER INVESTIGATIONS ARE CONDUCTED ON GROUND WATER FOR THE SITE. FURTHER ACTIONS WILL ADDRESS THREATS AT THE SITE PRESENTED BY ADDITIONAL CONTAMINATED SOILS AND GROUND WATER.

THE SELECTED REMEDY INCLUDES THE FOLLOWING MAJOR COMPONENTS;
* INSTALLATION OF EXTRACTION WELLS AND INJECTION WELLS IN THE FREE COAL TAR AREAS OF THE SUBSURFACE SOILS
* RECOVERY OF COAL TAR AND PROCESS WATER FROM THE EXTRACTION WELLS BY USING THE INNOVATIVE TECHNOLOGY OF ENHANCED RECOVERY
* SEPARATION OF THE COAL TAR FROM THE PROCESS WATER FOLLOWED BY TREATMENT OF THE PROCESS WATER
* DISCHARGE OF A PORTION OF THE TREATED PROCESS WATER TO BRODHEAD CREEK AND THE REINJECTION OF THE REMAINING TREATED PROCESS WATER INTO THE SUBSURFACE SOILS TO ENHANCE COAL TAR RECOVERY
* DISPOSAL OF THE RECOVERED COAL TAR AT AN OFFSITE PERMITTED INCINERATION FACILITY
* INSTALLATION OF A FENCE TO PREVENT PUBLIC ACCESS DURING REMEDIAL ACTIVITIES
* IMPOSITION OF DEED RESTRICTIONS TO LIMIT FUTURE USE OF THE SITE
* MONITORING OF GROUND WATER AND BIOTA IN BRODHEAD CREEK TO ENSURE PROTECTION TO HUMAN HEALTH AND THE ENVIRONMENT.
 
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