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<br /> <br />1 <br /> <br /> <br />1 <br />1 <br /> <br /> <br />CJ <br /> <br />1 <br />1 <br /> <br />RGI N 04548198 <br />Holnam, Ina <br />Jwuary 27, 1999 <br />Page 3 <br />investigation. The current disposal area is Cut 8, located adjacent to the south side of Cut 6. The bottom <br />of Cuts 6 and 8 coincided with the top of the underlying sandstone. Approximately ten (10) feet of <br />"shale" (i.e., argi0aceous limestone) was reportedly placed in the bottom of the cut prior to the placement <br />of any CItD. <br />2.2 Proposed Cement Kiln Dust Regulations <br />Proposed federal (EPA) draft regulations for the land disposal of cement kiln dust (GIGO) are expected <br />to be published by the end of 1999, with final regulations expected approximately one (1) year later. <br />These regulations are expected to include technical standards from the CKD Management Practices <br />document that was submitted by the American Portland Cement Alliance a few years ago. However, in <br />Colorado, the regulatory responsibility for the new requirements may be relegated to the Department of <br />Natural Resources, Division of Mines and Geology. If this occurs, the requirements for CICD management <br />may be incorporated into each facilities Mined Land Reclamation Permit. These requirements would <br />include specific requirements for ground water as described in Rule 3.1.7 of the "Construction Material <br />Rules and Regulations" and the Water Quality Control Commissions' Regulation No. 41, "Basic <br />Standards for Ground Water". The objective of this project was to perform a hydrogeologic assessment <br />to prepare for achieving compliance with the upcoming regulatory requirements. <br />3.0 ASSESSMENT ACTIVIT~S <br />' 3.1 Literature Search <br /> <br />1 <br /> <br />A search of potential sources of information on the local geology/hydrogeology was performed prior to <br />beginning the field portion of this assessment. The search included the USGS, the Colorado Geological <br />Survey, the University of Colorado at Colorado Springs library, and Holnam. Only one (1) report <br />describing the geology of the area in sufficient detail was found. This was a report on Development <br /> <br />