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<br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />=============================================================================== <br /> <br />Table IV;ll. Water Quality for the Cache la Poudre <br />River near Fort Collins, Colorado for Water Years <br />1980 - 1983 <br /> <br /> Range <br />Parameter low High Limit <br />Specific Conductance 34 120 None <br />(rnicromhos) <br />pH (units) 7.0 8.3 None <br />Hardness (mg/l) 11 46 None <br />Alkalinity (mg/l) 13 52 None <br />Sodi um (mg/l) 1.3 6.2 20 <br />Sul fate (mg/l) .7 12 250 <br />Chl ori de (mg/l) .3 2.6 250 <br />Fl uori de (rng/l) . 1 .5 1. 4-2; 4 <br />Dissolved Solids (mg/l) 24 79 SOD <br />Nitrogen (Nitrate + 0 .19 10 <br />r~itrite)(mg/l as N) <br />Arseni c (ug/1) 0 2 50 <br />Barium (ug/l) 0 400 1000 <br />Cadmi urn (ug /1 ) 0 3 10 <br />Chromi um (ug/l) 0 10 50 <br />Copper (ug/l) 0 24 1000 <br />Iron (ug/l) 9 170 300 <br />Lead (ug /ll 0 27 50 <br />Manganese (ug/l) 0 7 50 <br />Mercury (ug/l) 0 .4 2 <br />Sel eni urn (ug/1) 0 1 10 <br />Silver (ug/l) 0 7 50 <br />Zinc (ug/l) 0 80 5000 <br /> <br />=============================================================================== <br /> <br />-39- <br />