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.• 1, Surface Water Effects The extent and configuration of the area currently disturbed by the King Coal Mine will not be changed in the proposed future operation. The system of surface water and sediment control for this area will not be altered. As discussed under Section VI - Surface Water Hydrology of this document, mining in the proposed area of PR-03 will involve no additional surface disturbance and will be conducted so as to minimize subsidence under Pine Gulch. There should be no adverse impacts upon surface water au antity or quality in Pine Gulch, in the permit or in downstream areas. The general conclusions reached in this section of the July, 1987 Findings Document (Renewal), therefore, remain applicable. 2. Ground Water Effects The proposed enlargement of the Kinq Coal permit area and extension of underground mining to the area of proposed PR-03 does not essentially change the relationship of the mining to bedrock ground water supplies. The record of bore holes reported in the current permit package and those supplied with the current application indicate the Menefee Formation, in which the mining is conducted, is essentia]ly dry. Any perched aouifers that may be encountered and dewatered by the mining are therefore expected to be limited in extent and number. There are no local wells in the Menefee formation that serve as a source of water for domestic or agricultural use. There is no evidence that water from the Menefee Formation may supply base flow to any local stream or spring. The proposed future operation of the mine which will include the area of PR-03 .is also not sufficiently different from the current operation to alter the conclusions reached in the July, 1987 Findings Document (Renewal) in regard to the Hay Gulch alluvial aouifer and the August PR-02 Findings Document. 8. Cumulative H.vdrologic Impact Assessment The Division makes assessments of the probable cumulative hvdrologic impacts of anticipated and permitted coal mining operations within applicable ground water and surface water study areas of Colorado. The assessments are periodically updated as new reviews are made of the various operations within a water study area in con,iunction with Dermit renewals, midterm reviews, and considerations of proposed significant revisions to the permits. The most current Cumulative Hydrologic Impact Assessments are Contained within a separate volume filed in the Division office near the public copies of permit application packages for the coal mines in the state. The reader is therefore referred to this volume for the most recent Cumulative Hydrologic Impact Assessments of the ground and surface water areas that include the Kinq Coal Mine. Pursuant to C.R.S. 34-33-114(2)(c) and Rule 2.07.6(2)(c), the Division has assessed the probable cumulative impacts of all anticipated coal mining in the general area on the hvdrologic balance and the operations proposed under the application have been designed to prevent damage to the hydrologic balance outside the proposed permit area. -7-