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<br />Preliminary Adequacy Review <br />Bear Coal Co., inc. - Bear. hfine <br />Page Two <br />.4 Cultural and Historical <br />No further action concerning cultural resources is required of the Bear Mine unless <br />' further surface disturbances are to take place .and/or cultural resources discovered. <br />2.04.5 General Description of Hydrology and Geology <br />1. The applicant must supply complete geology and hydrology maps of the general <br />area. The geology map should delineate faults, folds, landslides, intrusive evidences <br />and major jointing. The hydrology map should include the location of regional <br />' alluvial and bedrock aquifers, as well as the direction of ground water flow in the <br />general area. The location of the seventy-seven (77) springs mentioned in the text <br />must also be located on the hydrology map. (2.09.5(1)(b)) ..PAGES 31 - 33 <br />' REVISED TO 2I SPRIPIGS IN THE PERMIT AND ADJACENT AREA MAPS ARE IPJCLUDED~, <br />2.04.6 Geology Description <br />' 2.09.6 (2) Underground Mining <br />l~. The 1ogs.of the drilIholes located on map 2.04..6(2)(a)-3 should be provided <br />with the depth where first water was encountered indicated on each log. This infor- <br />1 ma ti on is needed to facilitate the determination.of probable hydrologic consequences <br />of mining. (2.04.6 (2) (a) (iv) (A1) PAGES 4J &y0A <br />LOGS ARE ENCLOSED <br />The analysis of the C seam coal should differentiate by percentage the sulfur <br />ounds encountered. Those of concern are pyritic sulfur, organic sulfur and <br />sulfate sulfur. The different sulfur compounds vary in toxic and acid forming <br />~•apabilities. <br />PAGE 41 <br />3. On page 92 the applicant states that water is pumped from the mine to maintain <br />the competency of the floor shales for safety reasons. The applicant must prpvide <br />~ data on the rate of production of mine water by mine inflow data or aquifer tests <br />_ and the methods of disposal of this water. <br />PAGES 42, 4?A. 43 <br />' 2.09.7 Hydrology Description <br />2.04.7 (1) Groundwater Information <br />1. If insufficient data is available to determine water table extent and storage <br />capacity from ARCO's observation wells, as stated on page 33 of the permit,. Bear <br />c'oa1 must supply a water monitoring plan to determine this baseline information. <br />' Recharge, storage and discharge characteristics must also be determined (see Section. <br />1.02.6(3)). (2.04.7(4) ~ b)) PAGES 46. 46A. 46B <br />' 2. The low permeability of the sandstone aquifers must be documented (page 45). <br />(2.09.7(b)) PAGES 46A & 46a~ <br />\ 3. The applicant must address the probability of vertical migration of groundwater <br />through fracture and fault zones. (2.04.7(a 6 b)). This can be accomplished through <br />ping of underground seeps and springs on a mine workings map. <br />DRAWIF~G 2.044,7(2)(A)-2 <br />F <br />