| OCR Text |
Show Table 9.-Chemical analyses of water samples of inflow, outflow, and at various points and depths in Lake Mead INFLOW PIERCE FERRY VIRGIN CANYON VIRGIN BASIN BOULDER BASIN INTAKE TOWERS OUTFLOW Silica (SiO2) Calcium (Ca) Magnesium (Mg) Sodium plus potassium (Na+K) Bicarbonate (HCO8) Sulfate (SO*) Chloride (Cl) Nitrate (NO,) Sum Specific conductance (micromhos) 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. Inflow: June 11-20, 1948, minimum concentration at Grand Canyon during period October 1, 1947-February 28, 1949. Inflow: Oct. 11-20, 1948, maximum concentration at Grand Canyon during period October 1, 1947-February 28, 1949. Inflow: Aug. 21-31, 1947, period of summer flood at Grand Canyon, mean discharge 29,570 cfs. mean discharge for previous composite period was 18,850 cfs. Inflow: Weighted average for Grand Canyon during period October 1, 1947-February 28, 1949. Inflow: May 21-31, 1948; minimum conductance for period previous to May 28 was 455 on May 26. Water at surface of lake: May 28, 1948, Pierce Ferry Bay. Water near bottom of lake: February 20, 1945, Virgin Canyon, depth 200'. Water at bottom of lake: February 20, 1945, Virgin Canyon, depth 330'. (Sample at 325' had 180 ppm of HCO3 and conductance of 1160) Water at surface of lake: May 31, 1948, upper end of Virgin Basin, Station 45. Water at 320' depth: May 31, 1948, upper end of Virgin Basin, Station 45. Water at surface of lake: February 29, 1948, Virgin Basin, Station 27. September 23, 1948, intake towers. September 23, 1948, intake towers, depth 443'. July 3, 1945, intake towers, depth 442'. July 3, 1945, intake towers, depth 443'. Water at surface of lake Water at bottom of lake Water at bottom of lake Water at bottom of lake 1 13 2 14 3 20 4 14 5 16 6 12 7 8 9 13 10 12 11 12 11 13 12 14 15 16 12 55 156 148 87 60 40 88 114 60 96 91 72 94 92 121 86 11 60 34 26 13 12 33 41 16 26 26 23 26 38 67 27 25 222 133 90 29 20 109 119 42 93 87 60 96 94 77 95 167 261 271 216 200 117 176 372 138 164 165 121 167 176 408 167 69 596 465 224 66 68 301 256 140 298 283 223 297 307 285 280 19 188 58 71 17 17 94 96 33 73 67 52 72 88 80 71 .7 9.9 .5 2.5 .9 1.9 2.0 5.4 2.1 2.4 1.3 2.9 2.3 .7 2.3 276 1380 992 621 301 228 714 815 374 681 644 502 682 708 832 656 455 1970 1390 956 481 374 1120 1280 572 1010 981 782 1030 1120 1360 982 Outflow: July 12-16, 19-20,1948, typical release at Hoover Dam. [VII-165] |
| Source |
Original book: [State of Arizona, complainant v. State of California, Palo Verde Irrigation District, Coachella Valley County Water District, Metropolitan Water District of Southern California, City of Los Angeles, California, City of San Diego, California, and County of San Diego, California, defendants, United States of America, State of Nevada, State of New Mexico, State of Utah, interveners] : |
