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After their review of last year's Yoast AHR, the CDMG made several <br />comments in a letter dated July 7, 2003. In that letter, the CDMG <br />requested the Spoil Spring YSSPGI (first sampled in September 2002) be <br />included into the monitoring program in the permit. SCC will submit <br />this revision in 2004. <br />Meteorological Data <br />No meteorological data is collected at the Yoast Mine. SCC maintains a <br />weather station (wind speed and direction, temperature and <br />precipitation) at its adjacent Seneca II-W Mine. The reader is referred <br />to that AHR, Appendix B. SCC also maintains a precipitation gage at its <br />adjacent Seneca II Mine. Data for this year are included on Table 1. A <br />summary of alI data collected at that station is provided here in Table <br />2. <br />Data from the National Climatic Data Center's Hayden Station is used <br />here to evaluate the precipitation trend. For this year, 18.62 inches <br />of precipitation was measured, which is 1. 28 inc hes (7~j above the 1971- <br />2000 average. December, February, April, May, June and September were <br />all above average. Snowpack runoff, as estimated by totaling November <br />through April precipitation values, was 11.33 inches, which was 2.58 <br />inches (29~) above the 1971-2000 average. <br />The Seneca ZI precipitation gage measured 15.90 inches this year. This <br />value is 2.74 inches (158) below the 1981-2003 average. Snowpack <br />runoff, estimated using the Seneca II precipitation gage, was 8.62 <br />inches (November-April total), which is 0.79 inches (8~) below the <br />Seneca II 1981-2003 average. This is the fourth year in a row of below <br />average precipitation at Seneca ZI. These values are more relevant than <br />the Hayden Station data when evaluating the spring runoff observed this <br />year at Yoast. <br />M <br />2 <br />