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4 <br /> SCANNED <br /> III. Ground-Water <br /> Conditions <br /> In light of community concerns about possible effects of gravel alining on ground water, ground- <br /> water IeveI and quality data have been collected quarterly from the network wells since March <br /> 1994 in order to initially characterize pre-mining ground-water conditions beneath the permitted <br /> alining area and to eventually identify any direct effects of aggregate extraction. Also, as part of <br /> Teichert s plan to dry-pit mune, monitoring of the ground-water levels willrovide the necessary <br /> Y <br /> input to' eventually establish and maintain a buffer between the base of mining and ground water. <br /> The quarterly measurements made in 1994, 1995, and early 1996 have been compiled into a table <br /> of ground-water depths and corresponding elevations in each network well. In addition, ground- <br /> water elevation hydrographs for selected wells are presented in this section to illustrate ground- <br /> water conditions beneath the area during the last two years of monitoring activities. Ground- <br /> water elevation contour maps for selected periods are presented in this section to further illustrate <br /> recent ground-water conditions. A table of the corresponding water-quality results from each well <br /> I <br /> sampled is also presented, as are hydrographs of selected water-quality constituent concentrations <br /> in selected wells. Ground-water elevation hydrographs for each network well, ground-water <br /> elevation contour claps for 'each quarter, and laboratory analytical data sheets for each well <br /> sampled are included in the Appendix. <br /> Ground-Water Levels <br /> Ground-water levels measured in the shallow wells were stable throughout 1994, 1995, and early <br /> 1996, typically fluctuating three feet or less during this time. Ground-water elevations in the <br /> shallow zone ranged from approximately 76 feet MSL in the southeast portion of the monitoring <br /> network area to 86 feet MSL to the northwest. The lowest ground-water levels in the shallow <br /> network wells have been observed generally during the late spring to summer, with recovery by <br />