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<br />Ground Water <br />Water Levels. Water level deter are presented is Ayyendix e. Water level <br />reyorte for data collected eiace 1996 are yreseated immediately after the water <br />level hydrograph of all historic data for each rasyective well. ey preaeatin4 <br />all historic data, treads related to seasonal and annual variability sad <br />yoeeible mining related imyncte are more clearly evident. Table 3 (8ummary of <br />Ground Water bloaitoriag Wells) is presented as a reEereaee for the reader. Po <br />wells ware drilled or abandoned this year. The ground water moaitoriag program <br />in presented on pages 7-361/342 of the Seneca II PAP. Water level measurements <br />obtained 1n nos-flowing wells are takes with water level indicator, or is the <br />case of a few shallow alluvial wells, directly from a steel tape. Prosaure <br />readiage (ia yei) obtained from flawing walla with yreesure gages are multiplied <br />by 2.31 to obtnia head is feet. For the sake of brevity, the yrefix that <br />precedes all well names will be dropped throughout this reyort (except is the <br />case of seated walla with a similar number). Ae as example, Well SCAL{6 will be <br />referred to ea Wall d6. <br />- Alluvium. The nlluvial monitoring malls era located along Com Camp (Wells 46 <br />an8 69), Bond (Well 68 ), Graeey (Wells 33, 34, 70, and 71), and Littl• Grssay <br />Creeks (Walla 6, 31, 31A, and 32). These malls exhibit seasonal fluctuations in <br />water levels. The spring runoff-infiltration stimulates a water level rise, and <br />ere the drier £ell season nyproachea, water levels Beeline. Generally, water <br />levels at moat alluvial walls fell within their historic rmges. However, Well <br />70 (located oa Iower Graeey Creek), continues to exhibit a decreasing water <br />level tread. Water levels here, as well as with moat alluvial malls, are <br />effected by the absence or preeeace of beaver dame is the adjacent stream. <br />- Leaaox Overburden/Wedge Overburden. Tha three walla completed is these <br />formations (Wells SL042, SOV61, sad SOV42) exhibit normal seasonal variations, <br />that is, lowest water levels in the fell and winter, and highest is the late <br />spring/early summer after the syriag runoff recharge event. This year, all <br />walla dieylayad water levels that fell within their historic reagee. <br />• <br />3 <br />