Agenda - Council - 05/24/1984 - Laserfiche WebLink

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I I I I I I I I I I I ! I I I Waste Management of Wisconsin, Inc. 3333 North Mayfair Road. M~twaukee, Wisconsin 53222 Suite 306. 414/476-8858 May 7, 1984 Daniel A. Comeau, Soils Scientist Solid Waste Permit & Review Assistance Unit Regulatory Compliance Section Solid and Hazardous Waste Division Minnesota Pollution Control Agency 1935 West County Road B2 Roseville, MN 55113-2735 RE: Volatile Organic Compounds Monitoring and Analysis Anoka Municipal Sanitary Landfill Dear Mr. Comeau: We have received your letter of April 16, 1984. We have reviewed the monitoring and analysis of groundwater data for the Anoka Municipal Sanitary Landfill regarding volatile organic compounds(VOC). The purpose of this letter is to forward various information, to provide you with a status report of our activities, to furnish you with a complete set of data regarding the VOC's-monitored and to suggest for your review, an approach to establish a sound data base regarding VOC's. To proceed, it would be best if we would review a brief history of the VOC monitoring program. Attachment 1 is a series of tables which summarize all of the priority pollutant analysis and VOC's that have been monitored for. We have prepared Table I which specifically compares the VOC's analyses by SERCO, MNHD and ETC Laboratories. As you know, monitoring for VOC's began in 1982. Subsequently, in 1983 well 6A (shallowest), 7, and 8 were added to the program. It was in the latter portion of 1983, based on your July 27, and September 13 letters that we initiated more extensive monitoring of those wells. This was accomplished on September 9, September 30 and October 14 by SERCO Laboratories. Upon receipt of this information we became concerned that the analysis conducted by SERCO in September and October of 1983 reflected unusually high values. Based on our subsequent review of the paper entitled, "Volatile Organic Compounds As Indicators of Municipal Solid Waste Leachate Contamination" (presented by Gretchen Sable and Thomas Clark of the MPCA at the September 14, 1983 Sixth Annual Madison Conference of Applied Research and Practice on Municipal and Industrial W~ste. We ~elt that the SERCO data was questionable. In the early part of 1984, we determined that it was appropriate to obtain additional samples and compare them to a lab having greater experience in analysis for VOC's and one in which our confidence level was somewhat higher. It should be noted that the ETC Laboratory utilizes GCMS for analysis. Subsequently, a split sample was obtained from wells 7, 8 and the