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Surface Water The Xing Coal mine is located adjacent to Hay Gulch. Two other small underground mines are located along this same drainage. The Peacock mining operation (7 acres surface disturbance and 111 acres affected area) is located on the divide between Xay Gulch and Roberts Canyon, approximately '~, mile upstream from the King Coal mine on the opposite side of the valley. The Shalako mine (16 acres surface dis- turbance and 280 acres permit area) is located on the same side of the valley as the King Coal mine, ~ to 2 miles upstream. None of these sites are new disturbances. The King Coal mine site has been mined since 1941, and the Peacock site has been mined since 1905. The Shalako mine site has historically been mined. None of these operations have identified any expected surface water effects. The permit applications indicate that no water is present in the abandoned or current workings. Hydrologic investigations at the Shalako mine site have identified some ground water, but mine inflows are anticipated to be too small to require discharge. Therefore, none of these mines are expected to discharge mine water to receiving streams. Zn addition, alI three mining operations are topographically above Hay Gulch, and no perennial or Iarge ephemeral streams would be undermined. Therefore, no significant surface water losses due to possible subsidence effects would be expected. Finally, all runoff from disturbed areas would be routed through sediment ponds before release. Effluent from these ponds would be monitored for compliance with both coal and NPDES regulations. Therefore, no cumulative surface water effects are anticipated. The stipulation required in the Ground Water section of this document (V, Ground Water Hydrology) with respect to monitoring the Hay Gulch alluvial aquifer is intended to verify the conclusions of the Division which are presented here. Zn consideration of this stipulation, the Division is able to make the required finding of compliance. Finding An assessment of the probable hydrologic consequences of the proposed mining operation and an assessment of the probable cumulative impact of all anticipated mining in the area on the hydrologic balance, as described in Rule 2.05.6(3), have been made. The proposed operation has been found to be designed to prevent material damage to the hydrologic balance outside tine permit area. X. Climatological Information and Air Resources (2.04.8, 2.05.4(h), 2.05.6(1), 4.17) She climatology information submitted by the applicant has been reviewed by the Division and can be found in Section 2.04.8 of the permit application. National King Coal has been issued Emission Permit C-12 365(FD) from the Colorado Department of Xealth, Air Pollution Control Division. The present permit was issued for a production rate of 70,000 tons per year. The King Coal mine's anticipated production for 1981 and subsequent years is 90,000-120,000 tons per year. National King Coal has applied for an amendment to the above permit to reflect the projected increase in prcduction. A copy of the emission permit may be found in Section 2.05.6, page 1 of the permit application. The proposed operation is in compliance.