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• Hydrogrephs for each well ere presented prior to the water level report for each respective well in the same appendix. By presenting up to thirteen years worth of data, trends related to seasonal and annual variability are more clearly evident. Pater level measurements are taken with a Soil Test M-scope, or a Slope Indicator Pater Level Indicator, or in the case of a few shallow alluvial wells, directly from a steel tape. Table 3 (Appendix A), Summery of Ground Pater Monitoring Wells, is included as a reference for the reader. Eight new wells, GW-S2Y-20A, 21A, 22A, end 23A and USGS A1, A2, A3 and A4 have been added to this table as a result of the new monitoring program. For the sake of brevity, the GY-S2W prefix that precedes most well names, will be dropped throughout this report. As an example, Yell GW-S24-6A1 will be referred to as Well bAt. Alluvium. The alluvial monitoring Vells bA1, 6A2, 6A3, 6A4, 7A7, 7A2, 8A1, and 9A1 are located along Hubberson and Watering Trough Gulches. All cells except 9A1 exhibit typical seasonal variations, i.e., shallow after the spring recharge, deepening towards the fall. Yell 9A1 exhibited increasing (i.e., shallower) water levels the last two years. The area surrounding this well (approximately one mile southwest of the permit boundary) has become • marshy beginning in the summer of 1991, indicating that a spring may be developing here. Pater levels et Yells 6A1 to 6A3 are higher then they would normally be in May through July of the pest four years due to recently introduced (May, 1989) irrigation in that area. One alluvial well, 19A, is situated approximately one-half mile downstream of the NPDES 006 pond on a tributary to Hubberson Gulch. It also exhibits seasonal variations typical of previously mentioned monitoring wells. Eight additional alluvial wells are now a part of the monitoring program. Yell 20A is situated immediately above the NPDES 005 Pond and has been dry since monitoring began. Yell 27A is situated next to the lower Sage Creek flume site (SY-S2Y-FG4). Nells 22A and 23A are situated on tributaries to Sage Creek (NPDES 009 and proposed NPDES 070 drainages, respectively). Wells USGS A1, A3, A8 and A12 are old United States Geological Survey alluvial wells situated along upper Sage Creek and are also a part of PWCC~s proposed Yoast Nine monitoring network. Pater level measurements for all eight wells are required twice a year (most wells at Seneca 11-Y are measured five times a year). Due to this, water level measurements for seven of those eight wells (all except Yell 23A) are provided only, along with their water quality reports (Appendix D). Vell 22A contains very little • water. Wells 23A end USGS A1, A8 and A12 all exhibit typical seasonal variations. Seasonal variation at Vell USGS A3 is masked by adjacent beaver dams. Due [o its strategic location (i.e., next to the lower Sage Creek flume), a hydrograph and eater 3