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USGS Well No Dept to Water(Ft.) Elevation of Water Level (Ft.) <br /> TH75-7A 123.63 to 138.35 6,224 to 6,237 <br /> TH75-7B 153.14 to 178.15 6,186 to 6,210 <br /> Water quality was analyzed for these two wells in 1976, and the results of those analyses are <br /> presented in Section 10.3 Ground Water. These wells will be incorporated in the AmerAlia ground <br /> water monitoring program. <br /> AmerAlia will complete a lower aquifer water monitoring well near the Dissolution Surface within the <br /> area of the solution mining well field. The Dissolution Surface monitoring well will be completed to <br /> monitor water level and ground water quality in the lower portion of the lower aquifer. <br /> To establish baseline conditions, water level measurements and water quality in all ground water <br /> monitoring wells will be taken monthly at least 3 months prior to solution mining operations. <br /> Monthly ground water monitoring will continue for 1 year after solution mining begins. The <br /> frequency of ground water monitoring in these wells then will be reduced to quarterly. Ground <br /> water quality parameters to be analyzed are total dissolved solids, specific conductance, pH, <br /> chloride, sodium bicarbonate, alkalinity and sodium. These parameters were selected because of <br /> their occurrence in the solution mining fluids. <br /> G-5.3 DATA REPORTING <br /> All data collected in the water monitoring program will be reported within 60 days after the data are <br /> collected to the Bureau of Land Management, the U.S. Environmental Protection Agency, the <br /> Colorado Division of Minerals and Geology, and to Rio Blanco County. The reporting will include a <br /> narrative of significant deviations in water level or water quality. <br /> G-6 REFERENCES <br /> Colorado Department of Public Health and Environment. December, 1998. Status of water quality in <br /> Colorado. Water Quality Control Division. <br /> Colorado Department of Public Health and Environment. August, 1997. Classifications and numeric <br /> standards for Lower Colorado River Basin. Water Quality Control Commission. <br /> G:U M1M78545.00ZRedamation%Redamexh.DOC G-16 <br />