Agenda - Council - 11/13/1984 - Laserfiche WebLink

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I I I I I I I I I I I I I I I I I I I Page -2- Mr. Robert M. Mutchison October 16, 1984 gather groundwater monitoring data on three separate occasions to establish a base data regarding the extent of any contamination· After this data has been obtained, it will take approximately one or two months to prepare the final report· ~t is, therefore, anticipated that a final report documenting well construction placement, flow directions and groundwater munitoring results will be submitted on or about August 1, 1985. During the monitoring process, we would be willing to sit down on a monthly basis and discuss the results as they are obtained so that you and other agencies are appraised of the progress and results of this field study. Mowever, until all results have been obtained, it is sometimes difficult to come to a conclusion or to thoroughly evaluate the statistical importance of such data. It would be our intent to include the identification of two or three locations for deep wells in the November 19th submittal in association with the lower drift or upper bedrock zone. The purpose of installing such wells during December would be to identify groundwater flow directions in the lower drift or upper bedrock zone. Once that information has been obtained, a monitoring program for the deeper water bearing zone can be prepared and implemented. Where possible, this work would be coordinated with the above work to aid in identifying the extent of contamination. Since less information is known on the deep zone at this time, it is not possible to accurately assess a schedule for such at this time, but such a program can be outlined by the date requested. It is anticipated that the resistivity survey information will be available by November 8th and that a preliminary plan for the location of additional wells will be available. We would, therefore, like to meet with yourself, representative (s) from MPCA, and Bart Engineering to review the preliminary results and the suggested well locations. We understand that you will be discussing the involvement of Barr Engineering with the County Commissioners and will invite them if appropriate. As always, you are welcome to inspect our field work at any time during this process and we would be happy to answer any questions that should develop. Please do not hesitate to contact us. Sincere ly, ~ / District Engineer Environmental Management ~K/klr cc: Terry Miller, Site Manager Don Otter, General Manager George Buyer, Hickok & Assoc. Gerald Sevick, Foth & Van Dyke Marold Cahill, Regional Engineering Manager James O'Connor, District Manager James Kolar, City of Ramsey Bruce Nelson, MPCA