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Record of Decision System (RODS)

KUMMER SANITARY LANDFILL

Abstract

Site Name:  KUMMER SANITARY LANDFILL
Address:  ANNE ST 
City & State:  BEMIDJI  MN  56601
County:  BELTRAMI
 
EPA ID:  MND980904049
EPA Region:  05
 
NPL Status:  Deleted from the Final NPL
 
ROD Type:  Amendment
ROD ID:  EPA/AMD/R05-96/314
ROD Date:  11/21/1995
Operable Unit(s):  03
 
Media:  groundwater
 
Contaminant:  Methylene Chloride; 1,2 Dichloroethylene; Acetone; Ethyl Ether; Tetrahydrofuran; 1,1,2,2 Tetrachloroethylene; 1,1 Dichloroethane; 1,1,2 Trichloroethane; Trichlorofluromethane; 1,1 Dichloroethylene; 1,2 Dichloropropane; 1,2 Dichloroethane; 1,1,1 Trichloroethylene; Benzene; Toluene; Total Xylenes; Ethyl Benzene; Chloroform; 1,1,2,2 Tetrachloroethane; 1,2 Dibromoethane; Trichloroethylene; Methyl Isobutyl Ketone; 1,1 Dichloro-1-Pro
 
Abstract:  Please note that the text in this document summarizes the Record of Decision for the purposes of facilitating searching and retrieving key text on the ROD. It is not the officially approved abstract drafted by the EPA Regional offices. Once EPA Headquarters receives the official abstract, this text will be replaced.

The Kummer Sanitary Landfill is located in Northern Township, Beltrami County, Minnesota, approximately 1 mile west of Lake Bemidji. Northern Township has a population of about 4,000 people. Most of the township residents live east of the site near the City of Bemidji and along the western shore of Lake Bemidji. The land north and west of the site is not very populated, but residential and commercial development is beginning to occur immediately west of the site. The closest occupied building is the Kummer residence, located in the extreme southeast corner of the property.

In September 1984, the EPA initiated a study of the site. The site was placed on the National Priorities List (NPL) in June of 1986 due to contamination by volatile organic compounds (VOCs) in the aquifer used for drinking water by Northern Township residents. The EPA initiated the Potentially Responsible Party (PRP) search, and the Minnesota Pollution Control Agency (MPCA) took the lead for cleanup activities.
 
Remedy:  The amended remedy for Operable Unit (OU) 3 calls for the use of other measures to assume no exposure of contaminated groundwater to potential receptors.

The major components of the amended remedy for OU 3 include installation of a pilot scale field demonstration to determine feasibility of in situ biodegradation of the chemicals of concern and installation of a full scale in situ bioremediation system after one year of operation if it is necessary to meet the Maximum Contaminant Level (MCL) for chemicals of concern. This is dependent on the field scale demonstration proving effective at lowering contaminate levels that have not yet reached the appropriate cleanup goal. If the pilot scale field demonstration is determined to be infeasible, an active gas extraction system will be designed and installed; long-term monitoring of groundwater to verify that chemicals of concern are continuing to decline and to measure performance of the pilot scale field demonstration and or full scale in situ bioremediation system; continued observance of the Minnesota Health Department Well Advisory, which regulates the location of future drinking water wells near the site; institutional controls in the form of site access restrictions that protect the remedy; and operation and maintenance of the remedy, including periodic inspection of the site to ensure protectiveness.
 
Text:  View full-text ROD [ 39K ]
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