2010-09-13_HYDROLOGY - M1981185 (2)

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Inspection Report page 2 of 5 the Division requested clarification from the applicant to ensure an understanding of site conditions prior to issuing stormwater discharge permit certifications for the facilities. Clarification took the form of a meeting with R2 Incorporated (consultant for Wildcat Mining Corporation) on May 27, 2010, and an inspection of the Idaho Mine facilities, the May Day Mine and Mill facilities, and all associated access roads on June 30, 2010. Observations and Findings associated with the June 30, 2010 inspections of the Idaho Mine facilities and the Mav Day Mine and Mill facilities are addressed in this inspection report. Observations and Findings associated with the June 30, 2010 inspections of associated access roads (construction activities) are addressed in a separate inspection report, dated August 19, 2010. Note a: Division records indicate a stormwater discharge permit certification for the Idaho Mill was issued to Wildcat Mining Corp on 10/17/2006 (permit certification COR04 0222). Industrial activities addressed in the permit application submitted for this facility do not address any activities associated with the May Day Mine and Mill facilities. Note b: Maps documenting information specific to Wildcat Mining Corporation operations were provided to the Division inspector by R2 Incorporated during the inspection. These materials are referred to within this inspection report and attached. The Division of Reclamation, Mining and Safety (DRMS) documented site conditions for portions of the industrial activities described in this inspection report (inspection report dated June 3, 2010-May Day Mine). Relevant observations from these inspections are referenced in this inspection report and attached. Note c: The Colorado Water Quality Control Act requirements pertinent to this inspection report do not pre-empt, supersede, or infringe on the lawful requirements and authority of federal agencies, state agencies, municipalities, counties, drainage districts and local agencies. Records Review Note d: One location associated with the Idaho Mine application was inspected on June 30, 2010 (the Idaho Mine and Mill Site). A map provided to the Division inspector by R2 Incorporated (see Attachment A) indicates the Idaho Mine and Mill Site is comprised of the Payday Millsite and the Idaho Millsite. Four locations associated with the MU Day Mine and Mill application were inspected on June 30, 2010 (see map provided to the Division inspector by R2 Incorporated - Attachment B): i. May Day No. 1 (Level 1); ii. May Day No. 2 (Level 2); iii. New portal at historic Chief portal location (not on map provided by R2 Incorporated); iv. May Day No. 3 (Lamb). Industrial activity conducted by Wildcat Mining Corporation was not observed at the Idaho Mine and Mill Site or at the May Day No. 3 (Lamb). Therefore, findings contained in this inspection report are limited to observations made at May Day No. 1 (Level 1); May Day No. 2 (Level 2); and the historic "Chief' portal. 1. Division records indicate one effective stormwater discharge permit certification (COR04 0222) and two pending stormwater discharge permit applications (COR04 0252 and COR04 0253) for industrial activities conducted by Wildcat Mining Corporation (see Background and Note a, above). Because of potential overlap of coverage between COR04 0222 and COR04 0252 (pending), the Division expects Wildcat Mining Corporation to review existing and requested stormwater discharge permit coverage, and provide the Division with a determination of the permits it wishes to become/remain effective. If Wildcat Mining Corporation decides to inactive an effective stormwater discharge permit or withdrawal an application, the Division expects that Wildcat Mining Corporation will submit the appropriate paperwork to the Division. The appropriate forms to use to make these types of changes can be found on the Division's website: