2011-02-25_REPORT - C1982057 - Laserfiche WebLink

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are presented in Appendix B. Data from NOAA's Hayden Station are also provided in Appendix A. Data from the National Climatic Data Center's Hayden Station is used here to evaluate the precipitation trend. These data are provided in Appendix B of this AHR. For this year, 17.85 inches of precipitation was measured, which is 0.51 inches (3%) above the 1971-2000 average, 17.34 inches. The months of December, March, April, May, June and August were above average. Snowpack runoff, as estimated by totaling November through March precipitation values, was 6.27 inches, which was 0.91 inches (13%) below the 1971-2000 average, 7.18 inches. Snowpack runoff, estimated using the Seneca II-W precipitation gage, was 5.02 inches (November-March total), which is 2.01 inches (29%) below the Seneca II-W .1990-2010 average, 7.03 inches. Ground Water Water Levels. Water levels for all wells that are in the. current monitoring program are presented in Appendix C. Hydrographs of all historic data for each well are presented prior to the water level reports (for all data since 2005) for each respective well in the same appendix. By presenting all historic data, trends related to seasonal and annual variability are more clearly evident. Water level measurements are taken with an electrical water level indicator, or in the case of a few shallow alluvial wells, directly from a steel tape. Site information, including sampling frequencies, is presented in Table 3, Summary of Ground Water Monitoring Wells. Ground water level monitoring frequencies are listed in Table 1 of Appendix 15-3a in the Seneca II-W PAP. Ground Water Level Summary. This year, water levels at all wells fell within their historic ranges, with the following exceptions. Wadge overburden well WOV25, Wadge coal well WW25, Sage Creek overburden well WSOV25, and Wolf Creek coal well WWC25 all displayed the highest water 3 levels on record this June.. All W-25 series wells were drilled in 2004