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Ric hartl D. Lamm <br />Governor <br />DEPARTMENT OF NATURAL RESOURCES <br />CdnC~1N~~F FbjF°O~E~'g'f;F14':ecior <br />MINED LAND RECLAMATION DIVISION <br />DAVID C. SHEL70N Director <br />DATE: February 7, 1983 <br />T0: Bob Liddle <br />~II ~I~~I~~I~~~~~~~~ <br />sss <br />( <br />FROM: Sandra Emrich~'1 <br />RE: Anaconda Minerals Company (formerly ARCO) Permit Stipulation No. 1 <br />I have reviewed the information submitted in response to Stipulation No. <br />1 for the Mt. Gunnison No. 1 mine. Specifically, this stipulation <br />required Atlantic Richfield to increase the size of the originally <br />proposed dry meadow reference area (.8 acres) and sample the dry meadow <br />areas to be affected by mining. A statistical comparison was to be <br />calculated between them. Also, a reference area management plan was to <br />be included. The study design was based on a memo to ARCO from Tom <br />Gillis, dated September 22, 1981. <br />The memo from Tom Gillis could not be located. However, the study is <br />well done. The reference area has significantly greater cover and <br />production values, but the operator contends it is the only similar area <br />near the affected area that will not be disturbed by mining activities. <br />Baseed on the data provided in the report I would agree that the <br />composition of both the affected and disturbed areas are similar. <br />I suggest we accept the company's recommendation that since the cover and <br />production values are higher in the reference area than the affected <br />area, we can be assured that adequate reclamation will be achieved. <br />Tnerefore, the proposed dry meadow reference area is acceptable. <br />The management plan for the dry meadow reference area entails an annual <br />photographic survey. Four photo points will be established and four <br />pictures looking north, south, east and west will be taken to monitor <br />shrub invasion. If shrub invasion occurs they will be removed. <br />I could not locate the photo posts on the map, therefore, these should be <br />identified. Also, I would suggest that either the photos and annual <br />shrub invasion report be sent to the Division or a copy kept on file at <br />the mine office so the Division can review it during the course of a <br />monthly inspection. <br />If shrub invasion occurs and the company decides to use herbicides or <br />localized burning to remove the shrubs, extreme caution should be taken <br />to avoid disturbance to the rest of the reference area. <br />/ep <br />Doc. No. 747 <br />423 Centennial Building, 1313 Sherman Street Denver, Colorado 80203 Tel. (303) 866-3567 <br />