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Record of Decision System (RODS)

LEMBERGER LANDFILL, INC.

Abstract

Site Name:  LEMBERGER LANDFILL, INC.
Address:  ROUTE 1 HEMPTON LAKE ROAD 
City & State:  WHITELAW  WI  54247
County:  MANITOWOC
 
EPA ID:  WID980901243
EPA Region:  05
 
NPL Status:  Currently on the Final NPL
 
ROD Type:  Record of Decision
ROD ID:  EPA/ROD/R05-91/186
ROD Date:  09/23/1991
Operable Unit(s):  01
 
Media:  SOIL SEDIMENT DEBRIS GROUND WATER
 
Contaminant:  VOCS, PCE, TCE, TOLUENE, XYLENES, OTHER ORGANICS, PCBS, PESTICIDES, METALS, ARSENIC, CHROMIUM, LEAD
 
Abstract:  THE 45-ACRE LEMBERGER LANDFILL (LL) SITE IS A FORMER LAND DISPOSAL FACILITY IN MANITOWOC COUNTY, WISCONSIN. THE SITE IS LOCATED WITHIN ONE-QUARTER MILE OF ANOTHER SUPERFUND SITE, THE 45-ACRE LEMBERGER TRANSPORT & RECYCLING (LTR) SITE. LAND USE IN THE AREA IS PREDOMINANTLY AGRICULTURAL, WITH FOUR RESIDENCES WITHIN 1,000 FEET OF THE SITES. GROUND WATER AS WELL AS THE BRANCH RIVER, LOCATED LESS THAN 1 MILE WEST OF BOTH SITES, ARE USED AS SOURCES OF DRINKING WATER. FROM 1940 TO 1969, FRANKLIN TOWNSHIP USED 21 ACRES OF THE LL SITE AS AN OPEN DUMP. AFTER 1970, THE STATE LICENSED THE LANDFILL TO RECEIVE ONLY MUNICIPAL WASTE AND POWER PLANT FLY ASH AND BOTTOM ASH. IN 1976, THE LL SITE CEASED OPERATIONS EXCEPT FOR DISPOSAL OF FLY ASH TO BRING THE SITE TO FINAL GRADE. ALL INDUSTRIAL WASTE WAS DIVERTED TO THE NEARBY LTR SITE. FROM 1970 TO 1976, LTR RECEIVED INDUSTRIAL WASTE AND A VARIETY OF LIQUIDS, SLUDGE, AND SLURRIES, WHICH WERE DEPOSITED ONSITE IN UNLINED TRENCHES. AS A RESULT OF REPORTS OF CONTAMINATED MATERIAL SEEPING ONTO LOCAL PROPERTIES, A NUMBER OF STATE INVESTIGATIONS WERE CONDUCTED THAT IDENTIFIED VOCS LEVELS ABOVE STATE STANDARDS IN RESIDENTIAL WELLS. AFFECTED RESIDENCES RECEIVED DEEPER REPLACEMENT WELLS THAT HAVE NOT SHOWN CONTAMINATION. BECAUSE OF THE PROXIMITY OF THE SITES AND SIMILARITY IN THE TYPES OF WASTES, THE THE LL AND LTR SITES WILL BE REMEDIATED CONCURRENTLY. THIS RECORD OF DECISION (ROD) PROVIDES A FINAL REMEDY FOR SOURCE CONTAMINATION AT THE LL SITE AND GROUND WATER CONTAMINATION AT BOTH THE LL AND LTR SITES, AS THE FIRST OPERABLE UNIT (OU1). A FUTURE ROD WILL ADDRESS THE LANDFILL CONTENTS AT THE LTR SITE, AS OU2. THE PRIMARY CONTAMINANTS OF CONCERN AFFECTING THE SOIL, SEDIMENT, DEBRIS, AND GROUND WATER ARE VOCS INCLUDING PCE, TCE, TOLUENE, AND XYLENES; OTHER ORGANICS INCLUDING PCBS AND PESTICIDES; AND METALS INCLUDING ARSENIC, CHROMIUM, AND LEAD.

THE SELECTED REMEDIAL ACTION FOR THIS SITE INCLUDES CLEARING AND REGRADING THE WASTE AREA TO SMOOTH OUT THE EXISTING CAP; CONSTRUCTING A MULTI-LAYER CAP WITH A VEGETATIVE COVER TO MINIMIZE CAP EROSION; CONSTRUCTING A SLURRY WALL AROUND THE PERIMETER OF THE WASTES; INSTALLING AT LEAST ONE SMALL VOLUME EXTRACTION WELL IN THE UPPER AQUIFER TO COLLECT GROUND WATER WITHIN THE SLURRY WALL; BUILDING AN ONSITE TREATMENT FACILITY AT THE LL SITE, AND TREATING CONTAMINATED GROUND WATER FROM BOTH SITES USING ELECTROCHEMICAL PRECIPITATION TO REMOVE INORGANIC CONTAMINANTS AND GRANULAR ACTIVATED CARBON TO REMOVE ORGANIC CONTAMINANTS, UNLESS TREATABILITY STUDIES DEEM ANOTHER TECHNOLOGY TO BE MORE EFFECTIVE; BLENDING WATER EXTRACTED FROM THE SLURRY WALL WITH GROUND WATER EXTRACTED FOR REMEDIATION, AND TREATING THESE AT THE TREATMENT FACILITY; TEMPORARILY STORING THE RESIDUAL SLUDGE ONSITE IN 55-GALLON DRUMS, FOLLOWED BY DISPOSING OF DUAL SLUDGE AS PART OF THE FUTURE LTR SOURCE CONTROL REMEDY OR TREATING AND DISPOSING THE SLUDGE OFFSITE AT A RCRA LANDFILL ACCORDING TO FEDERAL AND STATE REGULATIONS; RECYCLING SPENT CARBON, IF POSSIBLE; DISCHARGING THE TREATED EFFLUENT ONSITE TO THE BRANCH RIVER; PROVIDING AN ALTERNATE WATER SUPPLY TO RESIDENTS WHOSE WATER SUPPLY IS DISRUPTED DUE TO THE OPERATION OF THE EXTRACTION SYSTEM; INVESTIGATING AND MITIGATING ANY AFFECTED WETLANDS; MONITORING GROUND WATER; AND POSSIBLY IMPLEMENTING INSTITUTIONAL CONTROLS INCLUDING DEED AND GROUND WATER USE RESTRICTIONS, AND CONSTRUCTING A SECURITY FENCE AROUND THE TREATMENT FACILITY TO LIMIT SITE ACCESS. THE ESTIMATED PRESENT WORTH COST FOR THIS REMEDIAL ACTION IS $19,200,000, WHICH INCLUDES AN ANNUAL O&M COST OF $731,000 FOR YEARS 0-1 AND $596,000 FOR YEARS 2-30.

PERFORMANCE STANDARDS OR GOALS; CHEMICAL-SPECIFIC GROUND WATER CLEAN-UP GOALS ARE BASED ON THE MOST STRINGENT OF STATE STANDARDS, SDWA MCLS, AND RISK-BASED LEVELS, AND INCLUDE TCE 0.18 UG/L (STATE), PCE 0.1 UG/L (STATE), TOLUENE 68.6 UG/L (STATE), XYLENES 124 UG/L (STATE), ARSENIC 5 UG/L (STATE), CHROMIUM 5 UG/L (STATE), LEAD 5 UG/L (STATE), AND PCBS 0.5 UG/L (PMCL).
 
Remedy:  THE SELECTED REMEDIAL ACTION IS THE FINAL REMEDY FOR THIS SITE. THE PURPOSE OF THIS REMEDY IS TO ELIMINATE OR REDUCE MIGRATION OF CONTAMINANTS TO THE GROUND WATER ANT TO REDUCE THE RISKS ASSOCIATED WITH EXPOSURE TO THE HAZARDOUS SUBSTANCES.

THE MAJOR COMPONENTS OF THE SELECTED REMEDY INCLUDE;
* INSTALLATION OF GROUNDWATER EXTRACTION WELLS;
* EXTRACTION OF CONTAMINATED GROUND WATER TO ACTIVELY RESTORE THE AQUIFERS TO FEDERAL AND STATE OF WISCONSIN GROUNDWATER QUALITY STANDARD;
* CONSTRUCTION OF A GROUNDWATER TREATMENT SYSTEM;
* CONSTRUCTION OF A LANDFILL COVER (CAP) IN COMPLIANCE WITH STATE OF WISCONSIN LANDFILL CLOSURE REQUIREMENTS;
* CONSTRUCTION OF A SLURRY WALL AROUND THE SITE;
* MONITORING OF GROUND WATER TO ENSURE EFFECTIVENESS OF THE REMEDIAL ACTION.
 
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