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Table 3. Water quality parameters of the North £ork of the Gunnison <br />River at Somerset, Colorado. <br />-- <br />- <br />-- <br />-- <br />-- <br />--- <br />--- <br />-- <br />-- <br />- <br />- <br />- <br />- <br />-- <br />------ <br />- <br />-- <br />- <br />Parameter <br />---------------------- -- <br />- <br />- <br />- <br />-- <br />Feb. 1978 <br />------------------ ---------------- <br />May 1978 <br />----------------- ------------------ <br />Aug 1978 <br />------------------- <br />Average Flow (cfs) 63 1,725 217 <br />pH 7.9 - 8.4 <br />Ca (mg/1) 20.0 2Z.0 19.0 <br />Mg(mg/1) 3.5 4.1 2.9 <br />Na(mg/Z) 8.1 8.3 4.9 <br />K(mg/1) 0.6 Z.0 0.8 <br />HC03(mg/1) 79.0 86.0 73.0 <br />SO4(mg/1) 12.0 14.0 15.0 <br />CI (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(31 204.0(3) <br />Sum of constituents <br />(meq/I) (1) 86.0 93.0 80.3 <br />Sum of cations(meq/1) 1.66 1.78 1.42 <br />Sum of anions(megfl) <br />---------------------- 1.60 <br />------------------ 1.75 <br />----------------- I.59 <br />--------------------- <br />1Ca + Mg + NA + K + NC03/2 + SO4 + CZ. <br />2Measured on March 13, 2979 <br />3Measured in 1979 <br />