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Wall WHAL7-1 wns destroyed in the winter of 1994/95 . Since an ady scent xall (7-2) exiata <br /> lass than 1D0 feet away, this well will not be replaced. We11 WHAL10 ie situated <br /> approximately one-half mile downstream of the NPD85 006 pond on a tributary to HubDereoa <br /> 4U1cD. It also exDibite s easonal variations typical of pzeviously mentioned monitoring <br /> walla. <br />HiQbt addlti oaal alluvial wells rare added to the monitoring program is October, 1991. <br />Well WDAL11, ei tuated immediately above the NPDHS 005 Poad, bas been dry until this spring <br />wDan 0.13 feat of water was observed is its casing. Well WSAL12 is situated next to the <br />lower Sage Creak flume site (SW-52W-FG4I. walla WSAL13 and 14 are situated oa tzlDUtarlec <br />to 9age Creek INPDHS 009 and SoutD Tributary drainages, respectively). Monitoring at Well <br />WSAL14 was discontinued is October, 1995 due to a change in the mina plan Ii.e., ao <br />disturbance is now planned is this drainage). Walls YSAL1, 3, 8, and 12 are old Onitad <br />States Geological Survey alluvial walla situated along upper Snqe Creek and are also a <br />part of SCC•s Yoast Mine monitoring network. water level measurements for all eight walls <br />are required twice a year (most wells at Seneca II-W are measured five times a year). <br />Walls WSAL12, 13, 14, and YSALl, 8, and 12 all exhibit typical seasonal variatlons. <br />• Seasonal variation at Well YSAL3 ie masked by local recDarge from adj accent beaver dame is <br />9age Creek. <br />Wedge Overburden. Noat Wedge overburden wells (unless noted) exhibit seasonal variations <br />typical of the overburden aquifer li.e., shallow in the spring or summer, deepening is the <br />fall). Nell WOV16 exhibits very little seasonal or annual variations. Water levels were <br />unable to be measured at Well wOV15 after February, 1995 due to casing smear. Monitoring <br />at this well was discontinued in October, 1995. <br />Wedge Coal. Wedge coal walla exhlDit the same typical seasonal variatlons ionises <br />otherwise specified) noted as the previous aquifers discussed. Due to Iow aquifer <br />tranemiseivities (range 0.07 to 0.36 '_t2/day). water sampling may cask normal water level <br />fluctuations. Water levels in all wells this year were within th air historic ranges. <br />Water levels were unable to be measured at Well WW15 after duly, 1995 due to casing smear. <br />Monitoring at this well was discontinued is October, 1995. <br />Wolf Creek Coal. Both wells exhibit the same seasonal variability as noted previously. <br />• Naithar roll exhibited water levels outside the ranges previously observefl, nor do they <br />exhibit nay loa0-term diecernibie tread. <br />J <br />