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<br />.~ <br /> <br />>.,,+;p <br /> <br />~rn~ <br />I ~ rt? )\C5J <br /> <br /> <br />l..__--! L.J '~._"....../' ''''---___/ <br /> <br />JAR i 220m <br /> <br />January 10, 2001 <br /> <br />Mr. Steve Rohlf <br />City of Elk River <br />13065 Orono Parkway <br />Box 490 <br />Elk River, MN 55330 <br /> <br />RE: Ridges of Rice ~ake - Proposed Residential Development <br /> <br />Dear Steve: <br /> <br />The Ridges of Rice Lake is a proposed residential development which is located approximately one-half <br />mile to the west-southwest of the WMI Elk River Landfill. A plat has been submitted to the City for review <br />and approval. Specific concern has been raised regarding the construction of individual water supply <br />wells and the potential for groundwater impacts associated with the Landfill to affect the water quality for <br />the new wells. <br /> <br />The Landfill has developed a groundwater quality monitoring system for the deep and shallow <br />groundwater in the vicinity of the Site. Residential wells in the area are sampled on an annual basis. <br />There is no data indicating that groundwater in area of the proposed residential development has been <br />impacted by the Landfill. <br /> <br />In our telephone conference with the developer, he indicated that a community well would be constructed <br />to supply the individual residences. The well would be constructed in the bedrock aquifer to ensure <br />adequate yield and low concentrations of iron and manganese. The new well should be tested for a full <br />range of drinking water quality parameters after it is constructed to ensure potability. <br /> <br />In previous discussions with Landfill representatives concerning this issue, initial testing of water quality <br />for a new well for potential parameters associated with the Landfill would be coordinated by Elk River <br />Landfill. It may also be possible to incorporate the new community well into the ongoing residential <br />monitoring program. <br /> <br />I suggested that the developer contact the WMI Hydrogeologist for the Landfill site, Terry Johnson, to <br />discuss recommended construction details for the new bedrock well and the initial water quality testing. <br /> <br />Please contact me if you have additional questions or comments. My direct phone number is 612-339- <br />2316. Thank you. <br /> <br />Sincerely. <br /> <br /> <br />\. \ <br />Matthew L. Ledvina, P .E. <br />Project Manager <br /> <br />Cc: Terry Johnson, Waste Management Inc. <br /> <br />:;::NViRDNM~NT;~i. iRESOU~CE GROUP <br /> <br />900 Second Ave...... South Mi"..eap;olis, MN 55402 <br />phone 612.339.4750 fa)!; 612..339.4990 <br />