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Mr. Dave Canning Page Three . April 15, 1982 submitted which contains 1) the inflow source; 2) a measure- ment or estimate of inflows (i.e. "X" gpm, "X" gpd, dripping, etc.); and 3) pH, electro-conductivity and temperature of measurable inflows (e.g, greater than 1 gpm). The mine inflaa study should also include a description of the character of different types of inflows encountered during mining (i.e. fluctuates seasonally, flows at a constant rate, dries up with the advancement of mine working, etc.). 3. No spring or well survey has been submitted for the area most likely to be impacted by mining,a portion of the Middle Creek drainage basin downdip of the mine as represented on Attachment B. a. A preliminary spring and well survey must be submitted prior to permit approval. The survey will include a water rights investigation for wells and springs which specifies yield, use, well depth and potential sources of the water for the area delineated in Attachment D. b.• Sunland Coal Company should also commit, within the permit application, to a field survey of the above mentioned area. The spring field survey should consist of 1) mapping of all springs;2) measuring field parameters of flow, pH, electroconductivity and temperature; 3) a description of the spring source; and 4) the percentage of flow contributed by springs in this area to the flow of Middle Creek. 4. As discussed in the previous three comments, the permit applica- tion did not evaluate the probable hydrologic consequences of mining to the quanity and quality of water in Middle Creek. The Division bases its concern on the information presented by the consulting firm 4Jater, Waste and Land in the permit application. The consulting firm describes the piezometric surface as being equivalent to stream levels throughout the general area because of the hydrolic conductivity of the faults. One recharge source for the faults is Trout Creek. Therefore the Division concludes, mining of coal below the elevation of Trout Creek has a high probability of re- ducing groundwater discharges downdip of the mine within the Middle Creek drainage area. The probable hydrolic consequences of mining section of the permit applciation must be rewritten to address the concerns expressed in this letter.