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SCC instituted in 1995 a revised monitoring site numbering system for <br />its new Paradox" water quality database. The revised system is detailed <br />in Table A. For convenience sake, this table has been placed at the end <br />of the Table of Contents (see previous page) . In addition, Table 3, <br />Summary of Ground Water Monitoring Wells; Table 8, Summary of Surface <br />Water Monitoring Sites; and the Table of Contents of Appendices B <br />through D have all been revised to correlate the old site (and map) name <br />to the new (Paradox) computer name. The new computer name will be used <br />throughout the following text. <br />Meteorological Data <br />There is no met station in the new Seneca II permit area. Data from the <br />National Climatic Data Center's Hayden Station is used here to evaluate <br />the precipitation trend. These data are provided in Appendix Al. <br />Precipitation data is summarized on Table 2. For this year, 17.58 inches <br />of precipitation was measured, which is 0.95 inches (5 %) below the 1981- <br />2010 average, 18.53 inches. All months except December, April, August <br />and September were below average. Snowpack runoff, as estimated by <br />totaling November through March precipitation values, was 6.71 inches, <br />which was 0.80 inches (11 %) below the 1981 -2010 average, 7.51 inches <br />Ground Water <br />Water Levels. Water level data are presented in Appendix B. Water level <br />reports for data collected since 2009 are presented immediately after <br />the water level hydrograph of all historic data for each respective <br />well. By presenting all historic data, trends related to seasonal and <br />annual variability and possible mining related impacts are more clearly <br />evident. Table 3 (Summary of Ground Water Monitoring Wells) is presented <br />as a reference for the reader. The old ground water monitoring program <br />is presented on pages 7- 341/342 of the Seneca II PAP. The revised <br />program is provided in the PR -02 package (Volume 14) on page 2.04.7 -2. <br />Water level measurements obtained in non - flowing wells are taken with <br />water level indicator, or in the case of a few shallow alluvial wells, <br />K <br />