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<br />1 <br />1 <br /> <br /> <br /> <br /> <br />1 <br /> <br />1 <br /> <br />1 <br /> <br />t <br /> <br /> <br />1 <br /> <br />TABLE 35 <br />SUMMARY OF MATER QUALITY GATA <br />Yampa R1ve r, Upstream <br />Parameter Medn SC.Oev. Max. Min. Units No. Period <br />PHYSICAL PROPERTIES <br />Conductivity 380 205 720 90 <br />pH 8.12 0.42 8.81 7.73 <br />Alkalinity as CaC03 100 40 150 32 <br />Hardness as CaC03 130 74 254 30 <br />Solids, dissolved 243 137 505 75 <br />Solids, suspended < 65 310 <4 <br />Solids, volatile <7 7 26 2 <br />CATIONS <br />Calc74m 54 11 33 IS <br />Magnesium L4 9 29 3 <br />Sodium 29 17 ~ 58 3 <br />Potassium 2.1 1.5 6.2 0.4 <br />ANIONS <br />Bicarbonates as MC03 ~ a9 179 39 <br />;:arbcnates as C03 1.6 3.0 7.2 0 <br />Chloride 8.5 5.2 16 1 <br />Sulfate 88 68 220 12 <br />?RIMARY DRINKING HAT ER <br />4rsenic <2. I.4 6 <1 <br />8 arium <190 30 200 100 <br />Cadmium <5 0 <5 <5 <br />Chromium <20 0 20 <20 <br />Lead <35 20 70 <20 <br />Mercury <1 0 <l <1 <br />Selenium <2.2 1.2 5 <1 <br />SECONDARY DRINKING 'dATER <br />Capper <20 0 20 <20 <br />Zinc <1?.1 34 120 <5 <br />MISC. TRACE METALS <br />Aluminum <510 580 2200 <200 <br />Boron 146 73 290 60 <br />Molybdenum <190 30 200 <L00 <br />Nickel Q4 9 50 <20 <br />tAINOR CONSTIT. <br />Fluoride 0.15 0.09 0.34 0.04 <br />:ran 0.85 0.71 2.04 0.10 <br />Man anese <br />9 <0.046 0.025 90 <20 <br />Su lpnide <0.2 O <0.2 <0.2 <br />NUTRIENTS <br />N itrogen,N03+NOp <0.23 0.32 0.91 <0.02 <br />N itrogen,Ammonium a5 N<0.12 0.08 0.27 <0.02 <br />Phosphate, ortho as P<0.036 0.030 O. LO <0.01 <br />Phosphate, total as P <0.11 0.14 0.21 <0.03 <br />ORGANICS <br />Cyanide <0.002 0 <0.002<0.002 <br />umhos/cm <br />mg/L <br />ma/L <br />ma/L <br />mg/L <br />mg/L . <br />mg/L <br />mg/L <br />mg/L <br />mg/L <br />mg/L <br />mg/L <br />mg/L <br />mg/L <br />ug/L 11 6/81-L2/83 <br />ug/L 1! 6/81-12/83 <br />ug/L 1L 6/91-12/93 <br />ug/L 1'. 6/81-L2/83 <br />ug/L 11 6/91-L2/.93 <br />ug/L 11 6/81-12/83 <br />ug/L 11 6/91-12/83 <br />ug/L 11 6/81-12/83 <br />ug/L 11 6/81-12/83 <br />ug/L 1L 6/81-12/83 <br />ug/L 11 6/81-L2/83 <br />ug/L 11 6/81-12/83 <br />ug/L 11 6/B L-L2/83 <br />mg/L 11 6/81-12/23 <br />mg/L 11 6/81-12/83 <br />mg/L 11 6/BL-12/83 <br />mg/L 11 6/81-12/83 <br />mg/L 11 fi/8L-12/83 <br />mg/L 11 6/BL-12/83 <br />mg/L 8 3/82-L2 /83 <br />mg/L 3 6/BI-12/81 <br />mg/L L1 6/91-L2/83 <br />I1 6/9L-L2/83 <br />I! 6/61-L2/93 <br />L1 6/81-L2/93 <br />li 6/9L-L2/83 <br />11 6/8L-12/93 <br />IB 6/81-12/93 <br />Ii 6/91-:2/83 <br />11 6/81-12/83 <br />11 6/81-L2/33 <br />11 6/81-L2/93 <br />I1 6/81-12/93 <br />11 6/81-12/83 <br />1'_ 6/81-L2/83 <br />1! 6/81-L2 /83 <br />11 6/91-L2/83 <br />u - micro <br />All parameters total unless otherwise indicated <br />No `field data included. <br />1 <br />