Laserfiche WebLink
<br />0025?4 <br /> <br />Draft: Test Flood Effects on Lake Powell <br /> <br />8 <br /> <br />TABLES <br />Table I: <br /> <br />Parameter <br />.j. <br /> <br />Chemical results at forebay station for 22 March and 5 April, before and after test flood. <br />Pre- and Post- Flood Chemistry Values at Wahweap Forebay Station, <br />22 March and 5 ApMI 1996 <br /> <br /> W.h Woh Woh Woh Woh Woh Woh W.h <br /> 3122196 4/5196 3122196 Penstock 415196 3122196 4/5196 3122196 4/5196 <br /> Surface Surface penstock ROW ROW bottom bottom <br />TempoC 13.83 12.15 8.56 8.39 7.87 7.78 7.19 7.23 <br />Field pH 8.18 8.12 7.78 7.76 7.6 7.58 7.41 7.42 <br />Field SC 670 667 776 762 925 696 976 976 <br />Turbidity. NTU 0 0 1.2 0.9 1.2 1.1 .1.4 1.3 <br />DO. mg/L 6.6 8.91 6.21 6.72 4.37 4.78 1.63 2.02 <br />TDS 441 434 503 487 628 553 629 625 <br />Ca, mg/L 59.6 54.7 65.9 62.3 78.3 70.4 80.5 79.5 <br />M9, mglL 19.6 18.1 21.4 20.1 25.5 22.7 25.8 25.4 <br />Na, mglL 53.8 49.7 63.8 59.1 79.9 69.2 80.4 79.7 <br />K,mgll 3.37 3.21 3.22 3.63 3.94 4.08 4.18 3.85 <br />HC03, mglL 151 150 161 162 176 171 182 181 <br />SO~. mg/L 170 160 187 180 240 213 248 245 <br />CI,mglL 35.4 33.8 49.1 46.8 63.5 56.6 65.9 66.6 <br />TP, mg-P/L <0.005 < 0.005 0.005 < 0.005'" 0.006 < 0.005 0.007 < 0,005 <br />OP, mg-P/L < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 <br />NH3, mg-N/L 0.010 < 0.010 < 0.010 < 0.010 <0.010 < 0.010 < 0.010 < 0.010 <br />N02+N030 mg.Nll. 0.16 0.18 0.33 0.34 0.42 0.39 0.44 0.45 <br />TKN, ma.N/L 0.06 0.08 0.08 0.08 0.10 0.09 0.14 0.09 <br />Average 102 107 116 120 140 13. 144 153 <br />Sum of Ions, maIL 943 913 1061 1028 1298 1165 1318 1309 <br /> <br />Table II: Discharge and ion load statistics for the Penstocks and ROW. <br /> % TDS di$- % test release fr <br /> Lake DO %DOdis- TDS charged from Volume dischatged % volume total lake volume Volume below <br /> Elevation melticTons charged metric tons each port intestflow,km3 discharge from below pc<l pc<l <br /> (m) eacl1port depth, kln3 <br />Penstocks: 1057.65 4,137 77.7% 336,714 65.6% 0.6255 70.1% 10.96% 6.122 <br />ROW: 1028.4 1,187 22.3% 176,353 34.4% 0.2672 29.9% 10.22% 2.439 <br />Total for PS + 5,324 100.0% 513,067 100.0% 0.8928 100.0% 14.56% 6.122 <br />JT: <br />Null Hypothesis: (Penstock -6", -67% <br />No test flood discharge only @ 2,062 0' 167,850 ~ 0.31'2 (1oo.0%) <br /> 392m3/s) 2.6x 3.1x <br /> ~" ~" <br /> <br />*Null hypothesis values projected forecast releases of Qave=392 m Is (Patten et. a/., 1998), for the same period (9.21 days) <br />as the high test flood releases. <br />