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• WHAL10, is situated approx+~tely one-hal! mile downstream o! the NPD89 006 pond on a <br />tributary to Hubberson Ouleh. It also exhibits seasonal variations typical of prevlwsly <br />mentioned monitoring wells. <br />Sight additional alluvial cells were added to the monitoring program in October, 1991. <br />Well WDAL11 is situated immediately above the NPDHB 005 Pond and has been dry since <br />monitoring began. Well WBaL12 is actuated next to the lower gage Creek flume site (8W- <br />82W-FO4). Wells WBAL13 and 14 are situated on tributaries to Sage Creek (NPDBS 009 and <br />ewth Tributary drainages, respectively). Wells Y9AL1, 3, B, and 12 are old United States <br />Geological survey alluvial cells situated along upper Sage Creek an6 are also a pazt of <br />BCC's Yoast Mine monitoring network. Water level measurements for all eight cells are <br />required trice a yeaz (moat cells at eeneca YI-W are measured five times a year). Wells <br />WBai.12, 13, 14, and YBAL1, 8, and 12 all e~iDit typical seasonal vaziationa. seasonal <br />variation at Well Ynw+.a is masked by local recharge from ponded aster in Saqe Creek <br />created by adjacent beaver dams. <br />Wadge Overburden. Most Wadge overburden cells (unless noted) exhibit seasonal variations <br />• typical of the overburden aquifer (l.e., shallow in the spring or summer, deepening in the <br />fall). Well WOV16 exhibits very little seasonal or annual variatiws. Water levels were <br />unable to be measure6 at Well WOV15 after February due to easing smear. <br />Nadge Coal. Wadge coal wells exhibit the name typleal seasonal variations (unless <br />otherwise specified) noted as the prevlws aquifers diswaaed. Due to for aquifer <br />transmissivitles (range 0.07 to 0.36 !t2/day), water sa~ling may mask normal rater level <br />fluetvatiws. Water levels in all wells this yeaz rere within their historic ranges. <br />Water levels rere unable to be measured at Wall WA15 after .7uly due to casing smear. <br />Wol! Creek Coal. Both rolls exhibit the same seasonal var1aD111ty as noted previwsly. <br />Neither cell exhibited rater levels wtside the ranges prevlwsly observed, nor do they <br />exhibit any long-term dlecernible trend. <br /> Ground Water Ievel eia_;. Nost aquifers at 6eneca II-w exhibit a typical seasonal <br /> fluctuation. Rater levels are highest (shallowest) after the spring anorpack runoff <br /> which recharges the aquifer. Often, bedrock (i.e., non-alluvial) aquifers exhibit a lag <br />• time between spring runoff and highest rater levels. Rater levels then decrease (deepen) <br />3 <br />