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DEPARTMENT OF NATURAL RESOURCES <br />David H. Gelches, Executive Director <br />MINED LAND RECLAMATION DIVISION <br />DAVID C. SHELTON, Director <br />Richard D. Lamm <br />Governor <br />February 25,1984 <br />Memo <br />To: Ed Bischoff/Dorchester No.l F11e <br />From: Bob Liddle <br />The following is a summary of the outstanding issues with regard to the <br />pending Dorchester No. 1 decision. <br />1. We still need Dorchester to solicit comments from J. Thompson, surface <br />owner, concerning the post-mining land use. <br />2. The contents of annual hydrologic reports will need to be discussed. <br />Dorchester is not committing to reevaluating the PHC yearly, instead they want <br />to summarize data. <br />3.Dorchester needs to supply water quantity data for Oak Creek for the <br />Division to complete the PHC prior to permit Issuance. We discussed this to <br />past meetings but they never responded with data. <br />4. We need to discuss the issue of the Thompson well with Dorchester. We need <br />information from Dorchester on the aquifer location, characteristics, and <br />probable impacts from dewatering and subsidence. We will probably need a more <br />detailed water replacement plan. <br />5. Dorchester still has not supplied a complete hydrology map. We need to <br />discuss the specifics of map requirements with them. <br />6. We need to resolve the Issue of keeping subsidence within the permit <br />boundary. <br />7. The issue of undermining Thompson ranch and mining adjacent to the park <br />will need to be discussed with Dorchester. <br />8. I am proposing a bond amount which is higher than Dorchester proposed. We <br />will probably need to discuss this with them. <br />9. We should also discuss how we expect the operator to revise the application. <br />Doc. 9377E <br />423 Centennial Building, 1313 Sherman Street Denver, Colorado 80203 Tel. (30z) 866-3567 <br />~II ~I~II~~I~~~~~ ~I~ <br />sss <br />