Agenda - Council - 01/28/1986 - Laserfiche WebLink

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I I ! I I TO: FROM: COUNTY OF ANOKA COMMUNITY HEALTH & SOCIAL SERVICES DEPARTMENT FOURTH FLOOR COURTHOUSE ANOKA, MINNESOTA 55303 612-421-4760 Ext. 1390 Family & Chfl0ren's ~,ervice$ Volunteer Services Developmental Achmevement Centers January 23,1986 Pubhc Health Numng Serwce$ Enwronmenta! Health E, erwce.~ Mental Health. Menial RelardahOn. Chemical ~epen~ency ,~erwce.~ Environmental Services Committee Robert M. Hutchison SUBJECT: Anoka Landfill; Report on Leachate Migration Waste Management of Minnesota, Inc., dba Anoka Landfill, was required, as a condition of licensure, to submit a report to the County assessing the extent of leachate migration and a deep aquifer monitoring plan. I I I I I I I I Th~ licensee has submitted the required report. This report indicates the following: 1. There is definite ground water gradient to the south east. 2. There may be a slight downward gradient in the northwest portion of the site but this disappears in the southeast portion of the site. 3. There are two leachate plumes leaving the fill. One plume originates on the east side of the landfill and seems to be moving in a southeast direction. The other plume originates at the southwest corner of the land- fill and seems to be moving south and then shifting to a southeasterly migration. 4. The leachate plumes appear to be moving toward and along the surface of the till. 5. The leachate plumes do not appear to have left the landfill site. 6. The concentration of the contaminants is at a relatively low level. 7. Some additional wells will be constructed in early 1986 and sampled to more precisely deliniate the depth and horizontal extent of the leachate plumes. Review of the report by staff and the County's consultant has identified several questions which need to be discussed with the licensee. A staff recommendation concerning this report will be presented at the Committees February meeting. I I Affirmative Action / Equal Opportunity Employer