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_. , Red Canyon Mine - 1997 AHR Pa e 3 be impacted by surface run-off from the mine site. Both points are monitored during May and September for field parameters and total suspended solids, (TSS). In May the TSS for SP-D and SP-DA was 165 and 220 respectively. In September the TSS for SP-D and SP-DA was 180 and 165 respectively. The TSS measurements indicate that no significant degradation of the quality of water occurred on this stretch of the Carbon Ditch. sample of water was obtained from the pond and analyzed as follows: During the year the return irrigation flow was allowed to accumulate in the pond to again demonstrate this was an adequate source of water for the pond. On May 29'" the pond contained about one foot of water. On June 29'" the pond contained about four feet of water. On September 29'~ the pond contained about three feet of water. On May 29'~ a Lab Parameters Date et Chemist Units 5/29/97 Chloride m /I 14.0 Nitrate as N dissolved m /I <0.01 Nitrite as N, dissolved m /I <0.01 H lab units 7.81 otal Dissolved Solids m /I 460 otal Sus ended Solids m /I 4 Sulfate mil 84.7 Metal Anal sis luminum, total recoverable m /I 0.005 rsenic total recoverable m /I <.001 Boron, total recoverable m /l 0.105 Cadmium total recoverable m /I <.001 Chromium, total recoverable m /I <.001 Co er total recoverable m /I 0.072 Lead, total recoverable m /I <.001 Selenium total recoverable m /I 0.005 Sodium, total recoverable m /I 42.6 Zinc total recoverable m /I 0.080 Tit,M ~i ,0".~ ~~ 4n.; o /o 0 ~a~ i~ q. ~ ]cOL z.rro p.2,-./? 7s i OS .v/ 1•J •r s, d a• ~ o. / °• .vS •~2 ~~ yN 2J a This sample was taken demonstrate the quality of the impounded water is suitable for its intended use. The sediment pond is to be left in place to enhance the postminig land use of wildlife habitat (ref. page 129).