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2000 average. Only the months of October, February, March and September <br />were above average. Snowpack runoff, as estimated by totaling November <br />through March precipitation values, was 6.61 inches, which was 0.57 <br />inches (8°s) below the 1971-2000 average. <br />The Seneca II precipitation gage measured 14.28 inches this year. This <br />value is 4.07 inches (23%) below the 1981-2007 average. Snowpack runoff, <br />estimated using the Seneca II precipitation gage, was 5.46 inches <br />(November-March total), which is 1.82 inches (25%) below the Seneca II <br />1981-2007 average. These values are more relevant than the Hayden <br />Station data when evaluating the spring runoff observed this year at <br />Seneca II. <br /> Ground Water <br /> Water Levels. Water level data are presented in Appendix B. Water <br /> level reports for data collected since 2002 are presented immediately <br />ft <br />r th <br />w <br />v <br />t <br />l <br />l h <br />h <br />d <br />f <br />ll hi <br />t <br />i <br />d <br />f <br />h <br /> a <br />e <br />e <br />a <br />er <br />e <br />e <br />y <br />rograp <br />o <br />a <br />or <br />s <br />c <br />ata <br />or eac <br /> respective well. By presenting all historic data, trends related to <br /> seasonal and annual variability and possible mining related impacts are <br /> more clearly evident. Table 3 (Summary of Ground water Monitoring <br /> Wells) is presented as a reference for the reader. No wells were <br /> drilled or abandoned this year. The ground water monitoring program is <br /> presented on pages 7-341/342 of the Seneca II PAP. Water level <br /> measurements obtained in non-flowing wells are taken with water level <br /> indicator, or in the case of a few shallow alluvial wells, directly from <br /> a steel tape. Pressure readings (in psi) obtained from flowing wells <br /> with pressure gages are multiplied by 2.31 to obtain head in feet .• For <br /> the sake of brevity, the prefix that precedes all well names will be <br /> dropped throughout this report (except in the case of nested wells with <br /> a similar number). As an example, Well SCAL46 may be referred to as <br /> Well 46. <br />Ground Water Level Summary. This year, water levels at all wells fell <br />within their historic ranges, with the following exceptions. Lower <br />Grassy Creek Well SGAL70 exhibited the lowest water level on record in <br />3 <br />