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reclamation, the Division found that groundwater monitoring was no longer necessary. This findingwas <br />based on the facts that the mine never produced coal, the portal entries did not encounter groundwater, <br />and monitoring from 1984 to 1994 indicated the limited development work prior to reclamation had not <br />impacted groundwater quality or quantity. <br />Water monitoring at the Coal Ridge No. 1 Mine currently consists of Colorado Discharge Permit <br />System permit number CO -0048972. <br />CPDS Permit No. COG -850005 was given an inactive status by the Colorado Department of Public <br />Health and Environment, Water Quality Control Division effective September 30, 2004. The <br />Division suspended the mine's groundwater sampling with Technical Revision 11, approved on July <br />14, 1995. <br />There is no water discharged from the site with a pH of less than 6.0. Therefore no use of manual lime <br />feeder or other neutralizing agent for the treatment of water is considered [Rule 4.05.2(8)(a)]. <br />C. Diversions and Conveyance of Overland Flow <br />There are no diversions of perennial or intermittent streams in the permit area [Rule 4.05.3(3)]. <br />There is no diversion on an existing landslide [Rule 4.05.3(5)]. <br />D. Stream Channel Diversions <br />There are no diversions of stream channels or stream channel reconstruction (Rule 4.05.4). <br />E. Sedimentation Ponds <br />No sediment pond is located in a perennial stream [Rule 4.05.6(1)(b)]. <br />The Division makes no proposal to approve the submittal of reports required by Rule 4.05.6(13) on <br />other than a quarterly basis. <br />No alternative design criteria and specifications were submitted or have been approved for use in <br />sediment pond design and/or construction [Rule 4.05.6(11)]. <br />F. Acid-forming and Toxic -forming Spoil <br />No acid-forming or toxic -forming spoil was encountered on the site [Rule 4.05.8(3)]. <br />G. Impoundments <br />Sediment Pond A was the last remaining pond at the Coal Ridge site. The pond and the <br />associated ditches were reclaimed in October and November of 2015. <br />H. Surface and Ground Water Monitoring <br />Coal Ridge Mine <br />Permit Renewal No. 7 13 December 5, 2016 <br />