Agenda - Council - 04/24/1984 - Laserfiche WebLink

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I I I I I I I I I I I I I i I I i I Hakanson Anderson Associates, Inc. 222 Monroe Street ,4noka, Minnesota 55303 April ll, 1984 engineers and surveyors 612/427-5860 Ms Laura A. Oatman Minnesota Department of Health 717 Southeast Delaware Street P.O. Box 9441 Minneapolis, Minnesota 55440 Re: Flintwood Hills Second Addition City of Ramsey Environment Assessment Worksheet Dear Ms Oatman: Thank you for your letter of April 9, 1984 regarding possible impacts the sanitary landfills could have upon the City's proposed well field. This has been a major concern of the City of Ramsey for a number of years. Since these issues have been addressed previously, they were not covered in the above referenced EAW other than stating that the project will require a municipal well and that the project will not affect ground water quality. The following is a list of responses to the questions raised in your April 9, 1984 letter: Based on Barr Engineering Company's report on the Evaluation of Water Resources Monitoring Sanitary Landfills of Anoka County, the direction of the ground water flow from beneath the landfill is south to southeast. As shown on the attached Exhibit A, if the ground water flow is in a southeasterly direction, the flow would miss the proposed well field by approximately one-quarter of a mile. However, most studies indicate that a majority of the flow from the landfill is in a more southerly direction towards the Mississippi River. This would increase the separation between the ground water flow from the landfill and the proposed well field. Therefore, it does not appear that the ground water flow originating beneath the landfills will have any adverse effects on the landfill. Based on the laboratory results on the water samples from the monitoring wells since 1972, the ground water does not show any signs of contamination by leachates from the landfill. The proposed wells, which are approximately two miles from the landfill, are planned to utilize the Franconia and the Ironton-Galesville Formations as a source for municipal drinking water. Both the glacial drift and the St. Lawrence Formation will be cased off as .shown on the estimated well cross-section {Exhibit D). It should also be noted that the City of Anoka, which is down gradient from the landfills, has not experienced any degration of its ground water acquifers. civil · municipal · planni.g · soils · la~td surveyittg