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Cramer, Johanna <br />From: Mathews, Dan <br />Sent: Monday, January 07, 2008 3:21 PM <br />To: Brown, Sandy <br />Cc: Boulay, Mike; Stark, Jim; Talvite, Marcia; Cramer, Johanna <br />Subject: McClane Canyon Mine; TRA 6 Request for Review Assistance <br />Sandy, <br />TR-16 for McClane Canyon Mine was deemed complete January 3rd, 2008. The application proposes a 38,000 cubic yard <br />coal mine waste disposal site within the McClane Canyon Mine permit area. The disposal site would be located in the area <br />currently occupied by the mine sediment pond and soil stockpiles. The stockpiles would be relocated and a new sediment <br />pond would be constructed to replace the existing pond. Approximately 4.75 acres of previously undisturbed land would <br />be disturbed in association with the project. <br />I will need to request review assistance for from staff with expertise in the following disciplines: <br />• Sediment and Drainage Control (New sediment pond sizing and design, diversion and collection ditch designs, etc); <br />• PHC impacts of the proposed waste disposal, and adequacy of the hydrology monitoring plan; <br />• Engineering and Geotechnical aspects of the proposed waste pile and sediment pond embankment; <br />• Reclamation Cost Estimate for the proposed project. <br />I am assuming that Mike will tackle the drainage control and PHC items, Marcia the Engineering/Geotechnical, and Jim the <br />cost estimate. <br />I would like to request review memos by February 4, 2008. <br />1 have scheduled a site visit for this Wednesday, January 9. Given the adverse weather conditions, I expect that Marcia <br />may want to postpone her trip (I wouldn't want to try Red Mountain Pass in these conditions), and Jim will not be coming <br />over either, so it may just be Mike and myself this time. We can schedule another time when the weather is better for <br />Marcia (and Jim if he needs to get out there). <br />Let me know if anyone has questions. <br />Thanks <br />Dan <br />