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<br />Page 3 <br />H-G Preliminary Adequacy Review <br />2.04.7 Hydrology Description <br />1. It is stated in the application that the completion of <br />the quarterly and monthly groundwater monitoring program will <br />occur in April, 1981. The Division has not yet received results <br />from any quarterly water quality data acquired since April, 1980 <br />or any monthly data acquired since May, 1980. Please supply <br />this additional data as soon as it is possible. <br />,~ 2. Although it is realized that the applicant has supplied a <br />' number of water quality analyses in various volumes of the <br />application, the lack of appropriate cross references to or <br />summaries of these studies makes an assessment of adequacy <br />difficult. As nearly as can be assessed, the information <br />given is deficient in some respects. For example, Table 7 <br />from the M-K Report should include, in addition to information <br />submitted, total combustible solids (if coal fines or oil and <br />grease are visible), fluoride, aluminum, arsenic, barium, <br />cadmium, lead, nickel and selenium. <br />Another example is Table 22 (Volume I) concerning groundwater <br />testing. Additional da~ta~required are: water levels,~tota-l' <br />hardness, fluoride, fS phosphate,`sulf_ide arsenic, boron, <br />cadmium, chromium, lead, molybdenum, and nickel. <br />Hydrologic monitoring should include monthly stream flow, <br />or groundwater levels, field pH and field electro-conductivity; <br />and quarterly monitoring should include the same parameters <br />plus the laboratory water quality analysis. Also seasonal <br />fluctuations in groundwater levels and ground water quality <br />should be addressed. <br />Please submit the appropriate information. <br />3. Another groundwater monitoring well should be established <br />\ down dip of the affected pit area. This will be required to <br />` , compare with monitoring wells in undisturbed areas to assess <br />/~(\ the changes in water quality. <br />4. Please submit the appropriate piezometric surface map(s) <br />/ ~/- of groundwater using groundwater monitoring data and spring <br />i N \ elevation data. <br />Zn- <br />~\~y ~"~5. It would be advantageous to provide the Division with an <br />~~ ~ analysis of pit-water according to the applicable parameters <br />given in item 2 above. <br />J6. Please supply lithologic logs for the monitoring wells. <br />From the information provided it is not clear whether these <br />`. logs have been submitted or properly documented. Refer to <br />j attachments for additional information on monitoring schedules <br />and parameters. <br />