Agenda - Council - 12/17/1985 - Laserfiche WebLink

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I I Hakanson Anderson ASsociates, Inc. . ,, ~Dc¢5 Eugene J. Hakan~on, P.E I I I I I I I I I I I I I I I I I James M. Winter, R.L.S. Lawrence G. Koshak, P.E. Peter R. Raat,kka, P.E November 22, 1985 Honorable Mayor and city Council City of Ramsey 15153 Nowthen Blvd. Ramsey, MN 55303 Re: Technical Reports on Monitoring Wells - Ramsey Landfill Dear Council Members: I have recently received copies of the technical reports on the second round hydrogeological investigation data for the Ramsey Landfill. These test results are part of the investigation stage of the consent order between Waste Management and the Minnesota Pollution Control Agency. Based on the Environmental Protection Agency's Guidelines, some of the wells had detectable levels of carcinogenic pollutants present. Acetone was also detected in a number of the wells. Three wells 5, 13B and 14B were found to have nitrate concentra- tions exceeding the Drinking Water Standard of 10'mg/1. I have discussed the test results with Mr. Robert Hutchison and Waste Management Inc. They do not believe that the elevated nitrate levels in wells 5, 13B & 14B are caused by the landfill, since the wells are located on the northwest side of the landfill and the groundwater flow is in a southeasterly direction. Fur- ther tests will be conducted to determine the source of the nitrates. Mr. Hutchison stated that the presence of acetone in several of the samples may have. resulted from laboratory or testing procedures. Further tests will be conducted to verify this. In addition, 16 or 17 additional wells will be installed as part of the investigative phase of the cOnsent order to help determine the extent ~and concentration of the pollution surround- ing the landfill site. vh'il · municipal · planning · soils · land surve),in£ · landscape architecture