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Table 7-45 <br />Comparison of Upstream (Site SW-N1) and Downstream (Site SW-N3) <br />Water Quality on Tuttle Draw During 1980-1981 and 1985-1986 <br /> <br /> <br />Parameters Mean Value for <br />1980 <br />SW-N1 SW-N3 the Irrigation Season <br />1985 <br />SW-N1 <br /> <br />SW-N3 Mean Value for <br />1980-1981 <br />SW-N1 SW-N3 the Non-Irrigation Season <br />1985-1986 <br />SW-N1 SW-N3 <br /> Field <br /> Conductivity (umhos/cm) 1575.00 2300.00 970.00 1257.50 2370.00 1065.00 1595.00 <br /> pH (units) 7.90 7.80 X8.32 7.94 8.18 7.87 <br /> Water Temperature (deg c) 19.50 17.50 13.95 12.75 3.88 4.25 2.62 2.15 <br />V <br />.:i <br />w Fl ow (cf s) 1.231 4,873 1.021 2.793 0.466 1.107 0.526 0.639 <br /> Laboratory <br /> Acidity (mg/1 of CaC0 <br />) ~ -288.75 -264.50 0.00 0.00 -312.50 -335,25 0.00 0.00 <br /> 3 <br /> Alkalinity (mg/1 of CaC03) 319.00 298.75 235.00 267.75 331.75 362.25 387.50 369.50 <br /> Aluminum, Total (mg/1) 0.30 0.37 2.44 0.30 0.35 1.00 0.06 0.30 <br /> Arsenic, Total (ug/1) 1,25 1.00 1.00 1.00 1.00 1,00 <br /> Bicarbonate (mg/1) 388.69 364.24 286.33 326.44 404.55 441.83 472.44 450.60 <br /> Boron, Total (ug/1) 326.75 443.50 130.00 210.00 280.00 320,00 <br />~ Cadmium, To tat (ug/1) 2.00 2.00 5.00 5.00 5.00 5.00 - <br />m Calcium (mg/1) 141.00 273.00 143.00 266.00 191.67 387.67 226,00 450,00 <br />a <br />° Carbonate (mg/1) 0.00 0.00 0.00 0.00 <br /> <br />` Chloride (mg/1) 17,00 14.25 12.00 13.00 35.33 29,00 29,00 23.00 <br />m <br />~ <br />Conductivity @ 25° C (umhos/cm) <br />1212.50 <br />2002.50 <br />993.50 <br />1320.00 <br />1900.00 <br />2740.00 <br />2022.50 <br />2747.50 <br />