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TABLE G-1 <br /> WATER QUALITY AT USGS GAUGING <br /> STATONS CORRAL GULCH (UPSTREAM) AND YELLOW <br /> CREEK DOWNSTREAM NEAR THE ROCK SCHOOL LEASE AREA <br /> CORRAL GULCH YELLOW CREEK <br /> USGS STATION USGS STATON <br /> NO. 09306242 NO. 09306255 <br /> DATE SAMPLED APRIL 8, 1998 SEPT 2, 1998 APRIL 30, 1998 SEPT 2, 1998 <br /> Parameters units <br /> Temp °C 5.2 10.4 17.2 20.3 <br /> Spec. Conductance <br /> US/CM 1,340 1,440 3,160 2,730 <br /> H Field units 8.4 7.9 8.2 8.6 <br /> H Lab units 8.0 8.0 8.3 8.2 <br /> Nitrogen Ammonia <br /> m /I 0.03 0.02 0.05 <0.02 <br /> Nitrogen Nitrite <br /> m /I <0.01 <0.01 0.02 0.03 <br /> Nitrogen-Ammonia + <br /> Organic m /I 0.5 0.3 0.6 0.6 <br /> Nitrogen NO2 + NO3 <br /> m /I 3.1 1.5 1.3 6.0 <br /> Phosphorus (mg/I <0.01 0.04 <0.01 <0.01 <br /> Carbon Organic <br /> Dissolved m /I 11 6.1 - - <br /> Hardness as CaCO3 600 580 720 780 <br /> Calcium m /I - - 40 65 <br /> Magnesium m /I 78 79 150 150 <br /> Sodium m /I 99 120 510 400 <br /> Potassium m /I 1 1.2 3.2 2.4 <br /> Chloride m /I 13 16 76 51 <br /> Sulfate m /I 380 420 870 820 <br /> Fluoride m /I 0.4 0.4 1.3 1 <br /> Silica m /I 22 22 11 15 <br /> Boron u /I 72.5 108 442 387 <br /> Dissolved Solids <br /> m /I 925 1,000 2,200 1,950 <br /> Sediment <br /> Suspended m /I 1,480 3 92 68 <br /> G:U M1M7&U5.00ZRodamation%Redama#h.DOC G-5 <br />