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Record of Decision System (RODS)

INDUSTRIAL LANE

Abstract

Site Name:  INDUSTRIAL LANE
Address:  INDUSTRIAL DR 
City & State:  WILLIAMS TOWNSHIP  PA  18042
County:  NORTHAMPTON
 
EPA ID:  PAD980508493
EPA Region:  03
 
NPL Status:  Currently on the Final NPL
 
ROD Type:  Record of Decision
ROD ID:  EPA/ROD/R03-91/139
ROD Date:  03/29/1991
Operable Unit(s):  02
 
Media:  SOIL DEBRIS GROUND WATER
 
Contaminant:  VOCS, BENZENE, PCE, TCE, OTHER ORGANICS, METALS, CHROMIUM, LEAD
 
Abstract:  THE 30-ACRE INDUSTRIAL DRIVE SITE IS AN ACTIVE SANITARY LANDFILL AND INDUSTRIAL FACILITY IN WILLIAMS TOWNSHIP, NORTHAMPTON COUNTY, PENNSYLVANIA. LAND USE IN THE AREA IS INDUSTRIAL, RESIDENTIAL, AND AGRICULTURAL. THE SITE CONTAINS ACTIVE AND INACTIVE SANITARY LANDFILLS AS WELL AS ACTIVE, INACTIVE, AND ABANDONED INDUSTRIAL FACILITIES. THE LEHIGH RIVER AND LEHIGH CANAL ARE LOCATED NORTHWEST OF THE SITE, AND A PORTION OF THE SITE RESTS UPON THE TRACE OF A THRUST PLANE KNOWN AS THE MUSCONETCONG FAULT. THESE CONDITIONS HAVE CREATED A COMPLEX GEOLOGIC SETTING IN WHICH GROUND WATER FLOW IS GOVERNED BY TOPOGRAPHY. PRIOR TO 1961, THE SITE WAS USED FOR IRON ORE MINING, INDUSTRIAL ACTIVITIES, AND AGRICULTURAL PURPOSES. IN 1961, SANITARY LANDFILL OPERATIONS BEGAN ONSITE, AND THE SITE ACCEPTED MUNICIPAL SOLID WASTE FOR DISPOSAL IN AN UNLINED LANDFILL. BY 1980, THE LANDFILL HAD EXPANDED TO 30 ACRES. IN THE LATE 1970'S, LOCAL RESIDENTS ALLEGED THAT THE NOW INACTIVE UNLINED LANDFILL HAD ACCEPTED HAZARDOUS WASTES THAT HAD CONTAMINATED LOCAL DRINKING WATER WELLS. WASTE DISPOSAL IN THE UNLINED LANDFILL CEASED IN 1986, BUT CLOSURE OF THE LANDFILL HAS NOT BEEN COMPLETED. IN 1986, THE STATE ISSUED A PERMIT FOR A 10-ACRE EXPANSION OF THE LANDFILL, WHICH INCLUDED A LINER AND LEACHATE COLLECTION SYSTEM. THIS EXPANSION LANDFILL IS CURRENTLY ACTIVE, BUT THERE ARE NO PLANS TO FURTHER EXPAND THE LANDFILL AREA. CONTAMINATION IN LOCAL GROUND WATER WELLS WAS FIRST DETECTED IN 1983. SUBSEQUENTLY, THE SITE HAS BEEN DIVIDED INTO TWO OPERABLE UNITS (OUS) FOR REMEDIATION. A 1986 ROD ADDRESSED OU1, AND PROVIDED FOR AN ALTERNATE WATER SUPPLY BY CONNECTING NUMEROUS PRIVATE WELL USERS TO AN EXISTING MUNICIPAL WATER SUPPLY. THIS ROD ADDRESSES OU2, THE CONTAMINATED GROUND WATER AND THE LOW-LEVEL THREAT CAUSED BY THE UNLINED MUNICIPAL LANDFILL. THE PRIMARY CONTAMINANTS OF CONCERN AFFECTING THE SOIL, DEBRIS, AND GROUND WATER ARE VOCS INCLUDING BENZENE, PCE, AND TCE; OTHER ORGANICS; AND METALS INCLUDING CHROMIUM AND LEAD.

THE SELECTED REMEDIAL ACTION FOR THIS SITE INCLUDES CLOSING AND CAPPING THE UNLINED LANDFILL AREA WITH A CLAY OR SYNTHETIC CAP; ONSITE PUMPING AND TREATMENT OF CONTAMINATED GROUND WATER USING AN AIR STRIPPER, FOLLOWED BY CARBON ADSORPTION WITH ONSITE DISCHARGE OF THE TREATED GROUND WATER TO THE LEHIGH RIVER; REGENERATING SPENT CARBON OFFSITE; AND LONG-TERM MONITORING OF THE CLOSED LANDFILL AND GROUND WATER. IF THE SELECTED REMEDY CANNOT MEET THE SPECIFIED REMEDIATION GOALS, A CONTINGENCY REMEDY WILL BE IMPLEMENTED TO PREVENT FURTHER MIGRATION OF THE PLUME, WHICH WILL INCLUDE A COMBINATION OF CONTAINMENT TECHNOLOGIES INCLUDING GROUND WATER EXTRACTION AND TREATMENT, AND INSTITUTIONAL CONTROLS. THE ESTIMATED PRESENT WORTH COST FOR THIS REMEDIAL ACTION IS $12,775,000, WHICH INCLUDES AN ANNUAL O&M COST OF $536,000 FOR YEARS 0-1 AND $498,000 FOR YEARS 2-45. THERE WILL BE AN ADDITIONAL O&M COST OF $20,000 EVERY 5 YEARS.

PERFORMANCE STANDARDS OR GOALS; THE GOAL OF THIS REMEDIAL ACTION IS TO REMEDIATE GROUND WATER TO BACKGROUND LEVELS AS SPECIFIED BY THE STATE HAZARDOUS WASTE MANAGEMENT REGULATIONS. CHEMICAL-SPECIFIC GOALS INCLUDE BENZENE 0.2 UG/L, PCE 0.03 UG/L, TCE 0.03 UG/L, CHROMIUM 50 UG/L, AND LEAD 5 UG/L.
 
Remedy:  THIS OPERABLE UNIT IS THE SECOND OF TWO OPERABLE UNITS FOR THE SITE. THE REMEDY FOR THE FIRST OPERABLE UNIT CONSISTED OF CONNECTING NUMEROUS PRIVATE WELL USERS IN LUCY'S CROSSING AND GLENDON BOROUGH TO EXISTING WATER MAINS BELONGING TO THE EASTON CITY SUBURBAN WATER AUTHORITY. THE FIRST OPERABLE UNIT ADDRESSED THE PRINCIPAL EXPOSURE PATHWAY, AND AS A RESULT A WATERLINE WAS EXTENDED TO RESIDENCES. SINCE NO PRINCIPAL THREATS WERE IDENTIFIED AT THE SITE, THE SECOND OPERABLE UNIT ADDRESSES THE CONTAMINATED GROUND WATER AND THE RELATIVELY LOW-LEVEL THREAT CAUSED BY THE UNLINED MUNICIPAL LANDFILL. THIS REMEDY, WHICH INCLUDES CONTAINMENT, RESULTS IN HAZARDOUS SUBSTANCES BEING LEFT ONSITE AND THAT THEREFORE WILL REQUIRE LONG-TERM MANAGEMENT.

THE SELECTED REMEDY INCLUDES THE FOLLOWING MAJOR COMPONENTS;
* CLOSURE OF THE UNLINED MUNICIPAL LANDFILL
* EXTRACTION, TREATMENT, AND DISCHARGE OF GROUND WATER TO THE LEHIGH RIVER
* LONG-TERM MONITORING OF THE CLOSURE AND THE GROUND WATER
 
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