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Record of Decision System (RODS)

PAGEL'S PIT

Abstract

Site Name:  PAGEL'S PIT
Address:  BAXTER & LINDENWOOD RD 
City & State:  ROCKFORD  IL  61109
County:  WINNEBAGO
 
EPA ID:  ILD980606685
EPA Region:  05
 
NPL Status:  Currently on the Final NPL
 
ROD Type:  Record of Decision
ROD ID:  EPA/ROD/R05-91/165
ROD Date:  06/28/1991
Operable Unit(s):  01
 
Media:  GROUNDWATER
 
Contaminant:  VOCS, 1,2-DICHLOROETHENE, VINYL CHLORIDE, METALS, ARSENIC, BARIUM, MANGANESE, THALLIUM, ZINC
 
Abstract:  THE 100-ACRE PAGEL'S PIT SITE IS AN ACTIVE SANITARY LANDFILL FACILITY IN A PREDOMINANTLY RURAL AREA OF WINNEBAGO COUNTY, ILLINOIS. SURROUNDING LAND USE IS MIXED AGRICULTURAL, RURAL RESIDENTIAL, COMMERCIAL, AND INDUSTRIAL. THE SITE IS BOUNDED ON THE WEST BY KILLBUCK CREEK. ANOTHER SUPERFUND SITE, ACME SOLVENT RECLAIMING, INC., IS LOCATED EAST AND UPGRADIENT OF PAGEL'S PIT. THE ACME SOLVENT SITE HAS BEEN SHOWN TO HAVE CONTAMINATED THE GROUND WATER IN THE DOWNGRADIENT DIRECTION. THE LANDFILL AT THE PAGEL'S PIT SITE IS A FORMER SAND AND GRAVEL QUARRY WITH A SEALED ASPHALT LINER THAT COVERS ABOUT 47 ACRES. THE LANDFILL, WHICH BEGAN OPERATING IN 1972, ACCEPTED PRIMARILY MUNICIPAL WASTE, SEWAGE SLUDGE, AND LIMITED AMOUNTS OF ILLINOIS SPECIAL WASTES. BEGINNING IN 1980, A NETWORK OF GAS EXTRACTION WELLS WAS INSTALLED TO REMOVE LANDFILL GAS THAT IS GENERATED BY THE WASTES. GAS COLLECTED FROM THE WELLS IS USED AS A FUEL SOURCE FOR A SLUDGE DRYING OPERATION. SOME OF THESE WELLS ALSO ARE USED FOR LEACHATE COLLECTION ALONG WITH THE MANHOLES INSTALLED IN THE LANDFILL. IN 1990, IT WAS ESTIMATED THAT THE LANDFILL CONTAINED ABOUT 4,700,000 CUBIC YARDS OF WASTE AND HAD 5 TO 7 YEARS OF OPERATING CAPACITY REMAINING. IT HAS BEEN DETERMINED THAT THE LANDFILL HAS CAUSED CONTAMINATION OF THE GROUND WATER. THIS RECORD OF DECISION (ROD) ADDRESSES THE LANDFILL WASTES AND CONTAMINATED GROUND WATER AT THE DOWNGRADIENT SIDE OF THE SITE AS OPERABLE UNIT 1 (OU1). A FUTURE ROD WILL ADDRESS GROUND WATER CONTAMINATION IN THE SOUTHEAST CORNER OF THE SITE THAT IS UNDERGOING FURTHER STUDY. THE PRIMARY CONTAMINANTS OF CONCERN AFFECTING THE GROUND WATER ARE VOCS INCLUDING 1,2-DICHLOROETHENE AND VINYL CHLORIDE; AND METALS INCLUDING ARSENIC, BARIUM, MANGANESE, THALLIUM AND ZINC.

THE SELECTED REMEDIAL ACTION FOR THIS SITE INCLUDES CONSTRUCTING A SANITARY LANDFILL COVER FOR THE WASTE DISPOSAL AREA; PUMPING GROUND WATER ALONG THE WEST SIDE OF THE SITE; REMOVING INORGANICS BY TREATING WITH ION EXCHANGE OR COAGULATION/FLOCCULATION, IF NECESSARY, PRIOR TO ONSITE TREATMENT USING CARBON ADSORPTION OR AIR STRIPPING, FOLLOWED BY CARBON POLISHING OF THE TREATED WATER, WITH ONSITE DISCHARGE TO SURFACE WATER; REMOVING SPENT CARBON OFFSITE FOR REGENERATION OR DISPOSAL; EXTRACTING AND TREATING LEACHATE OFFSITE AT A PUBLICLY OWNED TREATMENT WORKS (POTW); EXTRACTING LANDFILL GAS AND USING THE GAS FOR FUEL, OR FLARING THE GAS; MONITORING GROUND WATER, LEACHATE, AND AIR; MAINTAINING ALL REMEDIAL ACTION COMPONENTS; AND IMPLEMENTING INSTITUTIONAL CONTROLS INCLUDING DEED RESTRICTIONS. THE ESTIMATED PRESENT WORTH COST FOR THIS REMEDIAL ACTION IS $9,800,000 OR $11,000,000, WHICH INCLUDES O&M COSTS OF $310,000 OR $248,000 FOR 30 YEARS, DEPENDING ON THE PROCESS SELECTED.

PERFORMANCE STANDARDS OR GOALS; GROUND WATER GOALS ARE BASED ON CURRENTLY PROMULGATED MCLS OR NON-ZERO MCLGS, EXCEPT FOR ARSENIC AND 1,1-DICHLOROETHENE, OR A RISK LEVEL OF (10-5) OR AN HI=1 FOR CONTAMINANTS WITHOUT MCLS. CHEMICAL-SPECIFIC GOALS WERE NOT PROVIDED.
 
Remedy:  THIS REMEDY IS THE FIRST OF POTENTIALLY TWO OPERABLE UNITS AT THE SITE. IT PROVIDES FOR INTERCEPTION OF CONTAMINATED GROUNDWATER FOR THE PURPOSE OF PREVENTING IT FROM LEAVING THE SITE; USE OF CONTAMINATED GROUNDWATER AS A WATER SUPPLY POSED THE RISK IDENTIFIED AT THE SITE THAT EXCEEDED CRITERIA USED BY THE UNITED STATES ENVIRONMENTAL PROTECTION AGENCY (USEPA). IT ALSO ADDRESSES THE WASTES CONTAINED AT THIS OPERATING SANITARY LANDFILL. THE GROUNDWATER WILL BE TREATED, THE WASTES WILL BE CONTAINED.

THE SECOND OPERABLE UNIT WILL ADDRESS CONTAMINATED GROUNDWATER LOCATED PRIMARILY ON THE PAGEL'S PIT SITE IN THE SOUTHEAST CORNER. THE POTENTIALLY RESPONSIBLE PARTIES (PRPS) WHO HAVE DONE THE REMEDIAL INVESTIGATION FOR THE PAGEL'S PIT SITE CONTEND THAT ANOTHER NATIONAL PRIORITIES LIST SITE, UPGRADIENT OF THE PAGEL'S PIT SITE, MAY CONTRIBUTE TO THIS CONTAMINATION.

THE MAJOR COMPONENTS OF THE SELECTED REMEDY INCLUDE;
* A SANITARY LANDFILL COVER FOR THE WASTE DISPOSAL AREA;
* GROUNDWATER EXTRACTION ALONG THE WEST SIDE OF THE SITE;
* ON-SITE GROUNDWATER TREATMENT BY CARBON ADSORPTION OR AIR STRIPPING FOLLOWING PRETREATMENT WITH A SOLIDS FILTER, WITH THE TREATED WATER BEING DISCHARGED TO SURFACE WATER;
* REMOVAL OF INORGANICS BY TREATMENT, IF NECESSARY, PRIOR TO CARBON ADSORPTION OR AIR STRIPPING;
* LEACHATE EXTRACTION AND TRANSFER TO THE LOCAL PUBLICLY OWNED TREATMENT WORKS FOR TREATMENT;
* GAS EXTRACTION AND THE USE OF THE GAS FOR FUEL OR THE FLARING OF THE GAS;
* DEED RESTRICTIONS; AND
* SITE MONITORING AND MAINTENANCE OF ALL REMEDIAL ACTION COMPONENTS.
 
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