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DIVISION OF MINERALS AND GEOLOGY STATE OF COLORADO <br />Department of Natural Resources -? <br />1313 Sherman St., Room 215 <br />Denver, Colorado 80203 <br />Phone: (303) 866-3567 01 V I S 1 ON <br />FAY: (3031 832-8106 M I N E R A I <br />N I E I V I ® G E O L O G <br />RECLAMATIC <br />MINERALS PROGRATV1 POLICY M-INING•SAFE1 <br />TO: Minerals Stall, <br />FROM: B13H <br />J ? t <br />DATE: May 9, `2000 <br />Bill O"ens <br />Governor <br />Greg E. %Valcher <br />Esecuti%e Director <br />.titichael B. Long <br />Division Director <br />RE: Addendum To The Minerals Program Policy On Application Reviews <br />Involving Lined Sand and Gravel Pits, Original Policy Dated march 29, 2000 <br />This addendum was prepared by Division staff at the request of a consulting company, and is <br />intended to address specific concerns that have been raised by users of the 3/29/00 policy. <br />1. Under the regulated construction option, an Operator is required to provide.a construction <br />report detailing the construction of a slurry wall or pit liner. The report would typically <br />include a project description, construction summary, a description of any problems that <br />occurred and their resolution, a discussion of construction quality assurance observations and <br />a tabulation of test results. The report would also include a certification from the quality <br />assurance engineer that the facility was constructed in accordance with the approved design <br />plan. The regulated construction option also requires Operators to provide a commitment <br />that approved plans and specifications will not be altered without the Division's consent and <br />to provide a construction schedule to facilitate -inspections by the Division. With this level of <br />regulatory control over the installation of the slurry wall and pit liner, the Division would not <br />typically require submittal of any interim construction reports. A final construction <br />observation report submitted following completion of the facility is sufficient. Operator's <br />must summarize the progress on installation of slurry walls and pit liners that take more than <br />one year to complete in the annual reclamation report required under-34-32.5-116(3)(a), <br />C.R.S. However, the level of detail required in the annual reclamation report is much less <br />than in the final construction observation report. Information required in the annual report <br />includes a discussion and a map showing the extent of current disturbances to affected land, <br />liner or slurry wall installation accomplished to date and during the preceding year, new <br />disturbances that are anticipated to occur during the upcoming year, liner or slurry wall <br />installation that will be performed during the coming year, and the dates the liner or slung <br />wall installation occurred during the report year. <br />2. The discussion and example specifications and quality assurance plan included in the 3/29/00 <br />policy are not intended to be exhaustive. The 3/29/00 policy memo example includes no <br />discussion of pit liners and does not go into detail on the necessary quality assurance