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~ ~ iii iiiiiiiiiiiu iii <br /> STATE OF COLORADO <br />DIVISION OF MINERALS AND GEOLOGY <br />OF'C0~ <br />Depanmenl of Natural Resources A~ <br />4 <br />w <br />1713 Sherman $I., Room 215 <br />• <br />Denver, CO 80203 •~~• <br />Phone: 13071866-3567 <br />reps <br />FAX: (7071 872-8106 <br />Ruy Romer <br /> Govermr <br /> Michael tl lung <br /> Drvmon Durr uv <br />February 14, 1994 <br />Mr. Mark Heffner <br />37 E. Colorado Avenue <br />Denver, CO 80210 <br />RE: Pikeview Quarry, Technical Revision No. 7, Permit No. M-77-211 <br />Dear Mr. Heffner: <br />The Division of Minerals and Geology approves your application for a technical revision <br />pertaining to structural sediment controls and channel restoration at the Pikeview Quarry. <br />Further, we look forward to improved sediment control and effective stormwater management <br />with the implementation of the designs and techniques presented in this revision. However, <br />we caution you to select competent, erosion resistant materials for construction of all <br />permanent structures. Your estimate of $5,000.00 for stream channel restoration is <br />appropriate. <br />Therefore, we request that Castle Concrete Company submit a fmancial warranty increase of <br />$5,000.00 within 60 days. <br />Please call me at 866-3567 if you have questions. <br />Sincerely, <br />~ (~j~~ <br />X Thomine~ <br />Environmental Protection Specialist <br />TAS/em <br />cc: Jim Stevens, DMG <br />Mike Applegate, Tuttle Applegate, Inc. <br />M: \oss\ern\heifner. tas <br />