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and 10. Prior to October 1, 1989, all field conductivity values <br />collected at Seneca II monitoring sites were not corrected for <br />temperature (i.e., 25 C). Field conductivity data starting on October <br />1, 1989 were temperature corrected to 25 C. The formula for correcting <br />non- corrected conductivity data may be found in the 1990 through 1992 <br />AHRs. <br />Peabody instituted in 1995 a new monitoring site numbering system for <br />its new Paradox water quality database. This new system is detailed in <br />Table A. For convenience sake, this table has been placed at the end of <br />the Table of Contents (see previous page). In addition, Table 3, Summary <br />of Ground Water Monitoring Wells; Table 8, Summary of Surface Water <br />Monitoring Sites; and the Table of Contents of Appendices B through D <br />have all been revised to correlate the old site (and map) name to the <br />new (Paradox) computer name. The new computer name will be used <br />throughout the following text. <br />Meteorological Data <br />Data from the National Climatic Data Center's Hayden Station is used <br />here to evaluate the precipitation trend. These data are provided in <br />Appendix Al. Precipitation data is summarized on Table 2. For this year, <br />12.80 inches of precipitation was measured, which is 4.54 inches (26 %) <br />below the 1971 -2000 average, 17.34 inches. All months except November, <br />February, July and September were below average. Snowpack runoff, as <br />estimated by totaling November through March precipitation values, was <br />5.35 inches, which was 1.83 inches (26 %) below the 1971 -2000 average, <br />7.18 inches. <br />Ground Water <br />Water Levels. Water level data are presented in Appendix B. The table of <br />contents of Appendix B indicates which wells carry PSCM monitoring <br />requirements (all other wells were required by the old Seneca II Mine <br />permit). Water level reports for dat collected since 2003 are presented <br />immediately after the water level hydrograph of all historic data for <br />2 <br />