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Ist Quarter/March 2000 Monthly Report <br /> Page 2 <br /> Confirmation of completion by CDPHE has been received for two of these projects — <br /> Surface Mill Tailings at Eureka and Ransom Tunnel. Sunnyside has not received <br /> confirmation of completion from CDPHE for the remaining five projects although <br /> Sunnyside submitted completion certifications in October 1997. <br /> There were no progress pictures taken during the quarter due to snow-cover. <br /> • Sunnyside Mine Pool Mitigation —Alkaline Solution Injection <br /> This project was not active in March or the I" quarter of 2000. <br /> The water pool pH, at the American Tunnel bulkhead, was 5.27 and the bulkhead gage <br /> read 420 psi at the end of March. This would indicate the mine pool elevation did not <br /> change since January with very little fluctuation since October 1999. Sunnyside believes <br /> this static condition indicates that the mine pool is at physical equilibrium and will <br /> request confirmation from DMG. <br /> "B List" Projects <br /> • Columbus Mine Portals — Mine Waste Dumps <br /> • London Mine Portals —Waste Dumps <br /> Work, permitting or arrangement for access is not planned until it becomes evident that <br /> the work plans for these projects require implementation. <br /> • Mayflower Facility — Upland Hydrological Control <br /> This project was completed in October, 1999 and accepted by DMG as complying with <br /> the Consent Decree work plans and MLR Standards in November, 1999. <br /> Only the out-falls for these diversions were visible at quarter end due to snow-cover but <br /> combined flows were estimated to be more than 200 gpm. <br /> There were no progress pictures taken during the quarter due to snow-cover. <br /> • Tailings Pond No. 4 Surface Drainage Modification <br /> This project was completed in November, 1999 and accepted by DMG as complying with <br /> the Consent Decree work plan and MLR Standards. <br /> The out-fall pipe was visible and appeared to run intermittently, depending on <br /> temperature, which is what was expected because intercepted flows would only be <br /> surface run-off. <br /> There were no progress pictures taken during the quarter due to snow-cover. <br />