2008-09-29_REPORT - M2007044 (2)

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WHIRLWIND MINE WELL CONSTRUCTION AND TEST REPORT (FORM NO. GWS-31) SUPPLEMENTAL INFORMATION SHEET Well permit number 66419 applies to an underground mine sump, not an actual water well. As such, much of the information requested in Forms GWS-31 is not applicable to our mine sump. The following supplemental information is intended to clarify areas where information is not applicable and provide additional information that is applicable. The mine sump was constructed by a previous mine operator in the early 1980's. Rehabilitation of the Whirlwind Mine sump was completed by Energy Fuels Resources in early July 2008. Rehabilitation included mucking out the accumulated sediment, stabilization of the sump, and construction of a sump filter. Several feet of sediment was mucked out that had accumulated in the sump during previous mining operations and while the mine was inactive. Stabilization of the sump walls and roof consisted bolting on chain-link fencing followed by shot-creting. The sump filter consists of two large culvert pipes, oriented vertically with one standing inside the other. Holes were cut in the culverts and gravel was placed between them. The mine pump sits inside the culverts, suspended from a rolling chain hoist. In addition, a catwalk is located along the wall of the sump to provide access to the sump filter and pump. The entire sump measures approximately 17 feet wide by 46 feet long and ranges from 15 to 20 feet high. The following information provides clarifications to Form GWS-31 on an item by item basis: Item #4: Ground surface elevation is at the mine portal. The date of construction is unknown as it was performed by a previous mine operator in the early 1980's. Item #'s 5, 6, 7, 8, 9, 10 and 12: Not applicable as the mine sump is not a drilled well. Item #11: No disinfection is required as the water is being pumped from the mine for mine dewatering purposes and is not used as drinking or potable water. The mine water is treated to standards set forth in our CDPS Permit (No. CO-0047562) prior to being discharged to the surface into the middle tributary of Lumsden Creek. Item #13: Construction company, address, and license # is unknown as it was performed by a previous mine operator in the early 1980's and not applicable as this is not a well, but instead a mine sump.