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it <br /> �I <br /> 7. 0 INFLUENCE OF REFUSE DISPOSAL <br /> The proposed waste disposal facility may influence both <br /> ground water quantity and quality. Surface streams that may be <br /> influenced by the facility will be diverted prior to the con- <br /> struction so that neither the quality nor quantity of surface <br /> water flows would be influenced. <br /> The ground water quantity and water table elevation in <br /> the outwash deposits should not change substantially. Any sur- <br /> face runoff from the disposal pile and any potential seepage <br /> from the facility's subdrains will be diverted into the sedi- <br /> mentation ponds located below the facility. Because of the <br /> clayey character of the upper part of the outwash deposits and <br /> because of their very low permeability, no seepage into ground <br /> water is expected. Continuous monitoring of the existing wells <br /> will enable to verify this assumption prior, during, and after <br /> the operation of the waste disposal facility. <br /> For similar reasons, we expect that the changes in <br /> ground water quality will be limited. However, a certain in- <br /> crease in the total dissolved solids of the ground water down- <br /> stream from the proposed disposal is anticipated. <br /> Water quality monitoring in the existing sedimentation <br /> pond , located below the present waste pile (Sample No. 396- <br /> 001) , can provide a certain indication of probable water <br /> quality changes. From water quality data , shown in Tables 2 <br /> and 3, it is possible to compare surface and ground water <br /> quality parameters in the study area. With the exception of <br /> the sample collected on 4-19-1982, the difference between su - <br /> j face and ground water in the study area and in the <br /> j sedimentation pond is not substantial. The increase of total <br /> dissolved solids by 246 mg/1 (30 %) and sulfates by 203 mg/1 <br /> (57 %) should not be considered to be substantial (only one <br /> sample with sulfate contents in the sedimentation pond is <br /> available) . <br /> We hope that this evaluation of ground water conditions <br /> and surface and ground water quality in the area of the pro- <br /> posed waste disposal facility is sufficient for MLRD's <br /> purposes . <br /> March 26, 1984 <br /> T <br /> GEO-HYDRO CONSULTING, INC. <br /> Michal Bukovansk <br /> Senior Engineering Geologist <br /> 19 <br /> r'tA41N1Dr1i^nuennu� u.. <br />