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• <br />• O <br />• <br />• <br />TETRA TECH <br />February 2, 2011 <br />L- A <br />i Mr. Jim Dupler <br />Colorado Division of Reclamation, Mining and Safety <br />1313 Sherman St, Room 215 <br />Denver, CO 80203 <br />Re: Aggregate Industries - WCR Inc., Morrison Quarry, MLRB Permit M 1973-021, <br />2010 Annual Report <br />S Dear Mr. Dupler: <br />• This report presents the 2010 Annual Report activities for the above-referenced Permit. Activities in 2010 included: <br />• The area disturbed in 2010 totaled 35.1 acres. <br />• • The area partially reclaimed in 2010 was 2.8 acres. <br />• • The area anticipated to be disturbed in 2011 is 44.2 acres. This disturbance is related to continued mining, <br />overburden stripping activity and mine development in the expanded Quarry area defined in the Fifth <br />Amendment to Permit M 1973-021. This area represents continued mining of 35.1 acres in the active mine <br />i and the addition of 9.1 acres. <br />• The area anticipated to be partially reclaimed in 2011 is 1.9 acres. The reclamation is anticipated to include <br />partial infill of stripped material in the Central Quarry. <br />• • This quarry operates year round. <br />The annual report maps and geotechnical addendum are attached. <br />Permittee contact information is: <br /> <br />Permittee Contact: Michael C. Refer <br />Permittee Name: Aggregate Industries - WCR, Inc. <br />Address: 1707 Cole Blvd, Suite 100 <br />Golden, CO 80401 <br />Phone: (303) 985-1070 <br />Fax: (303) 716-5299 <br />• If you have any questions, please contact me at (303) 772-5282. <br />• Sincerely, <br />TETRA TECH <br />s ?^ <br />Gary Lien, R.G. <br />• Project Manager <br />A& Attachments: <br />1111116 <br />low <br />Annual report maps (4) <br />Geotechnical addendum <br />TO 'far <br />1911. P:1235141133-23514-110020cliverables\Deliv-O)-2010 Annual RcportCowr Ieucr 2010 Mining Repor.docx <br />1W