Detecting effects of mining on the hydrology 46 Interbasin diversions 46 Redistribution of flow 47 Additional studies 48 Summary 49 References cited 50 PLATE 1. Maps showing geology, average annual precipitation, concentration of dissolved solids in ground water, and data collection sites in the Price River basin, Utah (in pocket) FIGURES 1. Map showing location of Price River basin 2 2. Map showing seepage-study sites and quality of ground and surface water in the Mud Creek drainage basin, 1979-80 8 3. Graph showing relationship between the concentration of dissolved solids and discharge for selected streams in the Price River basin, 1980 water year 10 4. Map showing location of water-quality and core-sampling sites in the Scofield Reservoir area 12 5. Photographs of bed material, and graphs showing particle-size distribution for sites on Fish, Mud, and Soldier Creeks, 1979 16 6-11. Graphs showing: 6. Mineralogic composition of bed material at sites in the Soldier Creek area and Mud Creek drainage basin, 1976 and 1979 18 7. Relationship of relative lead-210 activity and depth of sediment in Scofield Reservoir, 1980 20 8. Vertical distribution of coal in sediment cores from Scofield Reservoir, 1980 21 9. Relationship of concentration of suspended sediment and water discharge during thunderstorm runoff at gaging station on Soldier Creek (site S59), July 19, 1979 22 10. Relationship of benthic-invertebrate diversity and particle size for selected sites, 1979 22 11. Range of benthic-invertebrate diversity index at selected sites, 1979-80 23 12. Recession hydrographs of selected springs and a well in the Beaver and Mud Creek drainages and the Soldier Creek area, 1980 26 13. Hydrographs of streams in the Soldier Creek area and separation of base flow from the Flagstaff Limestone and the Blackhhawk Formation, Castlegate Sandstone, and Price River and North Horn Formations 30 14. Graph showing relationship between the discharge of Soldier Creek and the concentration of dissolved chemical constituents in Soldier Creek and in ground water, 1979-80 32 15. Map showing geology, data-collection sites for ground water, and potentiometric surface for the Star Point Sandstone in the Mud Creek drainage basin,
Introduction 2 Location and physical characteristics of reservoir 2 Purpose and objectives of study 2 Methods of investigation 2 Acknowledgments 3 Inflow to reservoir 3 Chemical characteristics of reservoir inflow and outflow 4 Dissolved major ions 4 Dissolved and suspended nitrogen and phosphorus 6 Dissolved trace metals and other minor elements 10 Chemical and physical characteristics of water in the reservoir 10 Effects of storage, inflow-outflow, chemical precipitation, and leaching of minerals 10 Plant photosynthesis and bacterial respiration 13 Limnologic cycle 14 Circulation of water 14 Thermal and chemical stratification 14 Dissolved oxygen 17 Dissolved trace metals and other minor elements 20 Dissolved and suspended nitrogen and phosphorus 20 Trophic state 21 Chemical and physical characteristics of sediments in the reservoir 22 Deposition of sediment 22 Bathymetric survey 23 Radiochemical dating 24 Particle size 25 Coal 26 Trace metals and other minor elements 26 Simulated anaerobic environment 26 Silicate, nonsilicate, and nondetrital phases 28 Effects of the reservoir on the quantity and temperature of water in the Price River 33 Summary and conclusions 34 References cited 35 FIGURES Contents III which is the least soluble fraction. The maximum concentration of mercury in the nondetrital and easily soluble fraction was 0.02 part per million at both sites.
Table 2.-Records of selected Site No.: See plate 1. Location: See explanation of data-site numbering system. Owner: Owner at time well was visited by U.S. Geological Survey personnel or name listed in drillers' report. Well finish: P, well casing perforated with oil-well type of jet perforating tool; X, uncased below blank surface casing. Principal aquifer: See table 1 for explanation of codas. Altitude of land surface: Interpolated from topographic map, if reported to nearest foot; surveyed if reported to nearest hundreth foot. Water level: Reported by owner. Use of water: I, industrial; U, unused. Discharge: R, reported by owner. ! Remarks and other data available: C, water-quality data in table 8; G, geophysical log in filas of U.S. Geological Survey, Salt Lake City, Utah; W, watar-level data in table 3. Site No. Location Year constructed Well depth (ft) Casing diameter (in.) Lithology Well Principal of principal finish aquifer aquifer Altitude of land surfaca (ft) 58.5 (D-12-12)34aba-1 Mountain Fuel Supply Co. 1979 60.7 (D-13-6)13cdb-1 Coastal States Energy Co. 1979 3,177 250 310 350 825 water wells and test holes Water level Discharge Below land surface (ft) Date Use of water Date Rate (gal/min) Temperature Specific conductance (pmho/cm at 25°C) Remarks and other data available 502.84 82 180 220 243 241 241 241 41.7 30 ft. of blank surface casing; open hole below. Pumped 6 hours at 40 gal/min with 318 ft. of drawdown.
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