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STATE OF COLORADO <br />DIVISION OF MINERALS AND GEOLOGY <br />Department of Natural Resources <br />1313 Sherman St., Room 215 C O L O RA D O <br />Denver, Colorado 80203 DIVISION O F <br />Phone: (303) 8663567 MINERAL S <br />FA%: (3031832-8106 G E O L O G Y <br /> 0.EC LANATIO N•NINING <br /> EAFETY•SCIFNCE <br />February 21, 2006 aiii ovens <br /> Governor <br /> Russell George <br /> <br />Mr. ChrIS Varra Executive Director <br /> <br />Varra Companies Inc. Ronald W. Cattany <br />Divisfnn Director <br />8120 Gage Street Natural Resource Tmstee <br />Frederick, CO 80516 <br />RE: Durham Pit -Flood Control Mitigation Plan, Meeting Summary <br />Class: Revision, Type-Seq.: TR-2, Permit No. M-1978-056 <br />Dear Chris: <br />Based on our February 1, 2006 meeting, it is the Division's understanding that Varra Companies, <br />Ina (VCI) will be completing the following measures no later than March 31, 2006 pertaining to <br />the Flood Control Mitigation Plan for the Durham Pit: A) VCI will submit an engineering <br />stability analysis that demonstrates that backfill & grading measures needed during final <br />reclamation for the flood control berm will not damage the 23001ineaz feet of gas pipeline within <br />the berm, B) VCI will submit an engineering stability analysis which demonstrates an adequate <br />factor of safety for the modified embankment during and after a major flooding event such as a <br />100 year flood, and C) VCI will submit a detailed, reclamation cost including various itemized <br />costs & volumes as previously specified by the Division or a "Bid Installation Cost" for <br />completing all final reclamation measures. Once again, we will look forwazd to submittal of all <br />items noted above by Mazch 31, 2006 and appreciate VCI's cooperation in resolving these <br />concerns. <br />Please contact me at (303) 866-3567 if you have any questions. <br />Sincerely, <br />~~!j~ ~~ <br />Thomas A. Schreiner <br />Environmental Protection Specialist <br />Cc: Cazl Mount, DMG (via E-Mail) <br />Bradford Janes, VCI <br />ice of 0f8ce of Colorado <br />Mined Land Reclamation ARive and Inactive Mines Geologi~l Survey <br />