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<br />~~ <br /> 19 Nov 10 April 1 June 18 Aug 8 Oct 22 Jan <br />pH 8.5 8.5 8.3 8.5 8.54 8.3 <br />Alkalinity (ppm) 122 120 115 90 100 150 <br />Calcium hardness Ippm) 95 720 35 95 100 720 <br />Total hardness (ppm) 140 760 60 190 125 160 <br />Chloride Ippm) 10 i.5 <5 10 8 15 <br />Sulfate Ippm) '4 80 22 48 48 700 <br />Silica Ippm) - i.5 3.5 3.5 - - <br />Nitrate-nitrite nitrogen (ppm) .09 .31 .04 0 0.09 0,42 <br />Orthophosphate (ppm) 0.30 0.28 0.08 0.23 - 0.22 <br />Iron, total Ippm) 0 - ~ 0.15 - - <br />Color - - ~ 80 ~ 30 <br />Turbidity Ippm) 10 535 150 i.5 - - <br />Total ions (megl 6.620 8.946 4.388 6.552 5.362 8.158 <br />Sulfate _ bicarbonate 0.?7 0.85 0.24 0.68 u.6 i 0.85 <br />Ca hardness =total hardness 0.68 C.?5 0.59 O.SO 0.80 0.94 <br />TABLE 2-7. CHEMICAL ANALYSES OF YAMPA RIVER WATER NEAR HARDY'S RANCH, <br />NOVEMBER 7970-JANUARY 1972 <br /> <br />