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-25- <br /> Table 6. Water quality parameters of the ,north Fork of the <br /> Gunnison River at Somerset, Colorado. <br /> --------------------------------------------- <br /> Parameter Feb. 1978 May 1978 Aug 1978 <br /> ---------------------------------------------- <br /> Average Flow (cfs) 63 1 ,725 217 <br /> pH 7.9 - 8.4 <br /> Ca(mg/1) 20.0 21.0 19.0 <br /> Mg(mg/1) 3.5 4.1 <br /> 2.9 <br /> Na(mg/1) 8.1 8.3 4. 9 <br /> K(mg/1) 0.6 1 .0 0.8 <br /> KCO3(mg1i) 79.0 86.0 73.0 <br /> SO4(mg11) 12.0 14.0 15.0 <br /> C2(mg/1) 2.3 1.6 1 .1 <br /> Measured TDS(mg/1) 95.0 101.0 89.0 <br /> TSS(mg/1) 30.0(2) 329.0(3) 204.0(3) <br /> Sum of constituents <br /> (meq/1) (1) 86.0 93.0 80.3 <br /> Sum of cations(meq/1) '1.66 1 . 78 1 .41 <br /> Sum of anions(meq/1) 1.60 1.75 1.54 <br /> -------------------------------------------------- <br /> 1Ca + Mg + Na + K + HCO312 + SO4 C1. <br /> 2Measured on March 13, 1979 <br /> 3Measured in 1979 <br />