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Record of Decision System (RODS)

MACGILLIS & GIBBS CO./BELL LUMBER & POLE CO.

Abstract

Site Name:  MACGILLIS & GIBBS CO./BELL LUMBER & POLE CO.
Address:  440 5TH AVE NW 
City & State:  NEW BRIGHTON  MN  55112
County:  RAMSEY
 
EPA ID:  MND006192694
EPA Region:  05
 
NPL Status:  Currently on the Final NPL
 
ROD Type:  Record of Decision
ROD ID:  EPA/ROD/R05-91/170
ROD Date:  09/30/1991
Operable Unit(s):  02
 
Media:  SOIL DEBRIS SLUDGE GROUND WATER
 
Contaminant:  ORGANICS, DIOXINS, PAHS, PCP, METALS, ARSENIC, CHROMIUM
 
Abstract:  THE MACGILLIS & GIBBS/BELL LUMBER & POLE SITE CONSISTS OF TWO ACTIVE, ADJACENT WOOD PRESERVING FACILITIES, REFERRED TO AS THE M&G AND BELL FACILITIES, IN NEW BRIGHTON, RAMSEY COUNTY, MINNESOTA. LAND USE IN THE AREA IS RESIDENTIAL AND COMMERCIAL. SEVERAL LAKES, STREAMS, AND WETLANDS ARE LOCATED WITHIN 2 MILES OF THE SITE. MOST LOCAL RESIDENTS RECEIVE DRINKING WATER FROM 10 MUNICIPAL WELLS THE NEAREST OF WHICH IS LOCATED ONE-QUARTER MILE SOUTHEAST OF THE SITE. THERE ARE ALSO A LIMITED NUMBER OF RESIDENTIAL WELLS EXISTING IN THE AREA. THIS RECORD OF DECISION (ROD) ADDRESSES THE 24-ACRE M&G FACILITY ON THE EASTERN PORTION OF THE SITE. SITE FEATURES INCLUDE A DISPOSAL AREA IN THE WEST-CENTRAL PORTION OF THE FACILITY USED TO DISPOSE OF PCP-CONTAMINATED WOOD CHIPS, SETTLED SOLIDS, SPENT TREATMENT SOLUTIONS, AND COPPER CHROMIUM ARSENIC (CCA) CONTAMINATED DRUM SHELLS; ONSITE DRUMS; AND A STORAGE AREA. FROM THE LATE 1920'S TO 1970, M&G USED THE SITE TO TREAT WOOD POLES WITH VARIOUS PRESERVATIVES INCLUDING CREOSOTE AND PCP. PROCESS WASTEWATER FROM THESE ACTIVITIES MAY HAVE BEEN DISCHARGED TO THE DISPOSAL POND. IN 1970, M&G BEGAN USING ONLY CCA FOR TREATMENT AND BEGAN RECYCLING THE PROCESS SOLUTION WITHIN THE TREATMENT SYSTEM. INVESTIGATIONS CONDUCTED BY EPA HAVE DETECTED CONTAMINATION OF THE ONSITE SURFACE AND SUBSURFACE SOIL AND GROUND WATER, WHICH IS THOUGHT TO BE A RESULT OF LEAKING PIPES, DRIPPINGS FROM TREATED POLES, CONTAMINATION FROM THE DISPOSAL AREA, AND AN ONSITE SPILL OF 4,000 TO 5,000 GALLONS OF CCA IN 1979. IN 1988, M&G CONDUCTED INITIAL CLEAN-UP ACTIVITIES BY OVERPACKING AND STORING ONSITE APPROXIMATELY 200 DETERIORATED DRUMS CONTAINING PCP-CONTAMINATED SOIL AND WASTE. IN 1989, A THICK LAYER OF PCP-CONTAMINATED OIL, REFERRED TO AS THE LNAPL PLUME, WAS IDENTIFIED FLOATING ON THE UPPER AQUIFER. SUBSEQUENTLY, A PUMP WAS INSTALLED IN AN ONSITE WELL TO RECOVER THE OIL, WHICH IS CURRENTLY STORED ONSITE IN THE DRUM STORAGE FACILITY. IN 1988, EPA INITIATED PILOT TESTS FOR SOIL WASHING TO REMOVE PCP AND PAHS FROM CONTAMINATED ONSITE SOIL, AND IN 1989 INITIATED TESTS FOR A MOBILE BIOLOGICAL GROUND WATER TREATMENT SYSTEM. EPA HAS DIVIDED THE SITE INTO TWO OPERABLE UNITS (OUS) FOR REMEDIATION. OU1 WILL ADDRESS REMEDIATION WITHIN THE ONSITE DISPOSAL AREA OF THE M&G FACILITY. OU2 WILL ADDRESS GROUND WATER REMEDIATION FOR THE ENTIRE SITE, AS WELL AS REMEDIATION OF SOIL, PROCESS AND STORAGE TANKS, AND WASTE CONTAINERS OUTSIDE OF THE DISPOSAL AREA. THIS ROD PROVIDES AN INTERIM REMEDY FOR OU2. THE PRIMARY CONTAMINANTS OF CONCERN AFFECTING THE SOIL, DEBRIS, SLUDGE, AND GROUND WATER ARE ORGANICS INCLUDING DIOXINS, PAHS, AND PCP AND METALS INCLUDING ARSENIC AND CHROMIUM.

THE SELECTED REMEDIAL ACTION FOR THIS SITE INCLUDES REMOVING 100,000 GALLONS OF PCP WASTE OIL AND SLUDGES FROM ABANDONED, ABOVE-GROUND AND UNDERGROUND PCP PROCESS/STORAGE TANKS; DECONTAMINATING, DISMANTLING, AND DISPOSING OFFSITE OF THE WASTE PROCESS/STORAGE TANKS; SEPARATING PCP WASTES AND DECONTAMINATION LIQUIDS INTO OIL AND WATER PHASES USING AN OIL/WATER SEPARATOR; PLUGGING A DISCHARGE LINE FROM ONE OF THE UNDERGROUND VAULTS TO THE DISPOSAL OFFSITE AREA; PUMPING GROUND WATER FROM BENEATH THE LNAPL PLUME TO ENHANCE LNAPL RECOVERY VIA A GROUNDWATER DEPRESSION/OIL EXTRACTION PROCESS; CONTAINING AND ONSITE STORAGE OF PCP-CONTAMINATED OIL AND SLUDGE FROM TANKS, RESIDUALS FROM GROUND WATER/WASTEWATER TREATMENT FACILITY, AND LNAPL OIL FROM GROUND WATER; TREATING GROUND WATER, AND TANK AND TANK DECONTAMINATION WASTEWATERS USING AN ONSITE BIOREMEDIATION WASTEWATER TREATMENT FACILITY AND, IF NECESSARY, A CARBON ADSORPTION POLISHING UNIT; DISCHARGING EFFLUENT WATER OFFSITE TO A PUBLICLY OWNED TREATMENT WORKS (POTW); MONITORING THE LNAPL PLUME; AND IMPLEMENTING SITE ACCESS RESTRICTIONS. THE SELECTED REMEDY MAY BE MODIFIED TO INCLUDE A TECHNOLOGY REFERRED TO AS THE CONTAINED RECOVERY OF OILY WASTES (CROW) PROCESS IF THE PROCESS PROVES SUCCESSFUL IN A PILOT TEST. THE ESTIMATED PRESENT WORTH COST FOR THIS REMEDIAL ACTION IS $3,542,543, WHICH INCLUDES AN ANNUAL O&M COST OF $336,000.

PERFORMANCE STANDARDS OR GOALS; CHEMICAL-SPECIFIC CLEAN-UP GOALS WERE NOT PROVIDED FOR THIS INTERIM REMEDY.
 
Remedy:  THIS INTERIM REMEDIAL ACTION OPERABLE UNIT IS EXPECTED TO REDUCE RISKS BY PREVENTING THE CONTINUED SPREAD OF CONTAMINATION FROM SOURCE AREAS INTO THE SOILS AND GROUNDWATER BENEATH THE MACGILLIS & GIBBS CO. PORTION OF THE SITE. THIS INTERIM ACTION WILL ALSO INITIATE RESTORATION OF THE GROUNDWATER AQUIFER BENEATH THE SITE AND WILL PROVIDE ADDITIONAL INFORMATION ON AQUIFER RESPONSE TO REMEDIATION PRIOR TO THE DETERMINATION OF FINAL AQUIFER CLEANUP LEVELS. SUBSEQUENT OPERABLE UNITS WILL ADDRESS THE FINAL REMEDY FOR ALL SOILS AND GROUNDWATER CONTAMINATED BY THE SITE. THIS INTERIM REMEDIAL ACTION OPERABLE UNIT WILL BE CONSISTENT WITH THE FINAL SITE REMEDY.

THE MAJOR COMPONENTS OF THE SELECTED REMEDY INCLUDE;
* REMOVAL OF PENTACHLOROPHENOL (PCP) WASTE OIL AND SLUDGES FROM ABANDONED, ABOVEGROUND AND UNDERGROUND PCP PROCESS/STORAGE TANKS AND VAULTS AND ALL ASSOCIATED PIPING.
* SEALING THE DISCHARGE LINE LEADING FROM AN UNDERGROUND VAULT TO THE DISPOSAL AREA.
* DECONTAMINATION, DISMANTLING AND DISPOSAL OF THE ABOVEGROUND PCP PROCESS/STORAGE TANKS.
* IMPLEMENT ACCESS RESTRICTIONS INCLUDING FENCING AND WARNING SIGNS TO REDUCE ACCESS TO THE REMAINING UNDERGROUND VAULTS.
* SEPARATION OF LIQUID PCP WASTE AND DECONTAMINATION LIQUIDS FROM THE TANKS INTO OIL AND WATER PHASES THROUGH USE OF AN OIL/WATER SEPARATOR.
* EXTRACTION OF A LIGHTER THAN WATER NONAQUEOUS PHASE LIQUID (LNAPL) OIL PLUME, CONTAMINATED WITH PCP, FROM THE SURFACE OF THE WATER TABLE USING A GROUNDWATER DEPRESSION EXTRACTION PROCESS.
* CONTAINERIZATION AND ON-SITE STORAGE OF OIL AND SLUDGE FROM THE TANKS AND EXTRACTED OIL FROM THE CONTAMINANT PLUME.
* TREATMENT OF GROUNDWATER FROM THE CONTAMINANT PLUME EXTRACTION PROCESS ALONG WITH WASTEWATER FROM THE TANKS AND TANK DECONTAMINATION PROCEDURES, IN AN ON-SITE BIOREMEDIATION WASTEWATER TREATMENT FACILITY.
* DISCHARGE OF EFFLUENT WATER FROM THE ON-SITE WASTEWATER TREATMENT FACILITY TO A PUBLICALLY OWNED TREATMENT WORKS FOR FINAL TREATMENT AND DISCHARGE IN ACCORDANCE WITH NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) PRETREATMENT LIMITS.
* MONITORING OF THE CONTAMINANT PLUME THICKNESS AND MOVEMENT ON A QUARTERLY BASIS.
 
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