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• <br />After their review of last year's Seneca II AHR, the CDMG made several <br />comments in a letter dated August 14, 2001. Following here is SCC's <br />response to those comments. <br />Item 1: The CDMG commented on the status of Wells SWU8 and SWC15. The <br />monitoring program will be revised to indicate that all monitoring at <br />these two wells will be discontinued. <br />Item 2: The CDMG commented on the surface water standards used in the <br />AHR. The CDOH Reg. No. 33 standards recommended by the CDMG include the <br />use' of 'Table Value Standards' (TVS). These TVS's require complex <br />mathematical equations to calculate. Due to other projects undertaken <br />by the mine hydrologist this year, SCC will be unable'to comply with the <br />CDMG's request this year. Hopefully, SCC will be able to take the time <br />required to computerize these TVS's for the 2002 AHR, For this AHR, SCC <br />will continue to use the CDOH Reg. No. 31 agricultural standards. <br />Item 3: The CDMG commented on SCC's ground water quality discussion. <br />No response is required. <br />Meteorological Data <br />Precipitation data was obtained at the Seneca II Mine using a Belfort <br />Weighing Bucket Rain Gage. Daily precipitation data for this year are <br />presented in Table 1. Total monthly precipitation data collected since <br />1961 are presented in Table 2. Where indicated, data from the U.S. <br />Weather Service - Hayden Station were used. Temperature, wind speed and <br />direction data are presented in Appendix B of the Seneca IZ-W AHR. The <br />Seneca II-W Mine Meteorological Station located approximately seven <br />miles southwest of the Seneca II Mine. Climatic conditions are similar <br />between the two mines. <br />Data from the National Climatic Data Center's Hayden Station was used to <br />evaluate the precipitation trend. For this year, 14.66 inches of <br />precipitation was measured, which was 2.18 inches (13~) less than the • <br />1961-1990 average. Only November, February, July and August were above <br />2 <br />