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STATE OF COLORADO <br />DIVISION OF RECLAMATION, MINING AND SAFETY <br />Department of Natural Resources <br />1313 Sherman St., Room 215 <br />Denver, Colorado 80203 <br />Phone: (303) 866-3567 <br />FAX: (303) 832-8106 <br />May 8, 2008 <br />COLORADO <br />DIVISION O F <br />RECLAMATION <br />MINING <br />- ~- <br />SAF ETY <br />Bill Ritter, )r. <br />Ron Thompson Governor <br />Peak Project Management Harris D. Sherman <br />34115 County Road 20.8 Executive Director <br />Trinidad CO 81082 Ronald W. Cattany <br />Division Director <br />RE: Quarterly Report Review, 1st - 4th Quarters 2007 Natural Resource Trustee <br />Lorencito Canyon Mine, #C-96-084 <br />Dear Mr. Thompson: <br />The Division of Reclamation, Mining, and Safety (Division) has completed review of the 1St - 4th <br />quarter 2007 reports submitted for sediment ponds, excess spoil fills, and discharge monitoring <br />reports (DMR's) for the Lorencito Canyon Mine. Please find the results of this review under the <br />respective headings below. Please take note of any questions or issues in bold text. <br />Sediment Ponds <br />The four quarterly reports meet the requirements of Rule 4.05.9(17). The first quarter report also <br />complies with the annual inspection required by Rule 4.05.9(14)-(15). A sediment survey was <br />suggested in the first quarter for pond 8 as conditions allow. Pond discharge was documented <br />in the 3rd quarter from pond 8 and pond 9A. Sediment was removed from pond 6 in the 4th <br />quarter and pond 8 was field surveyed and sediment cleanout was recommended. <br />Excess Spoil Fills <br />Three excess spoil fills are inspected at the site. Each quarterly inspection report meets the <br />requirements of Rules 4.09.1(11). Minor repair in the west downdrain of Fill 8 was documented <br />in the 4th quarter. <br />Discharge Monitoring Reports (DMR) <br />Pond discharge occurred in the third quarter from pond 8 and pond 9A. The operator requested <br />the storm exemption from total suspended solids as allowed for storm runoff less than or equal <br />to the 10-year storm event. Values of settleable solids confirm compliance with the alternate <br />limits (<.5 ml/I; measured .15 ml/I) No discharge was observed during any other quarter during <br />2007. <br />We have no further questions or concerns at this time. If you have any questions, please call <br />me. <br />Sincerely1~'~~ 1 <br />Kent Gd`~ m ~~~ <br />Environmental Protection Specialist II <br />Office of Office of <br />Mined Land Reclamation Denver Grand Junction Durango Active and Inactive Mines <br />