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<br />1 <br /> Pg. 1/~ <br />' TaBLE 3 <br /> SUMMARY OF WATER QUALITY DATA <br />' Mtdd le Sandstone <br /> Parameter Mean St.Dev. Max. Min. Units No.• Period <br />' PHYSICAL PROPERTIES <br />Conductivity 490 100 680 318 umhds/cm 24 3/9L-6/83 <br /> <br />pH <br />8.59 <br />0.88 <br />10.3 6.5 - <br />24 <br />3/81-6/83 <br /> Alkalinity as CaC03 176 61 273 82 mg/L <'4 3;81-5/83 <br /> Hardness as CaCOg 161 93 359 9 <br />? mg/L 24 <br />' 3/81-6/83 <br /> -~jSolids, dissolved 430• 210 292 <br />66 mg/L 21 3/81-6/93 <br />' Solids, suspended 29 i.4 30 28 mg/L 2 3/91 <br /> CATIONS <br />' Calcium <br />Magnesium 25 <br />26 24 <br />13 66 1 <br />50 10 mg/L <br />*g/L 21 <br />21 3/81-L2/82 <br />3/81-12/82 <br /> Sodium ~ d4 ~~ 18 78 18 mg/L 21 3/81-L2/82 <br /> <br />r Potassium 3.9-' 2.1 8.1 l.1 mg/L 21 3/81-12/82 <br /> ANIONS <br />' Bicarbonates as HC03 188 96 333 34 mg/L 24 3/8L-3/83 <br /> Carbonates as C03 29.9 4'_.7 168 0 mg/L 2a 3/81-3/83 <br /> Chloride 5.8 3.7 17 2 mg/L 24 3/81-3/83 <br />' Sulfate 72 <br />PRIMARY DRINKING WATER 35 145 33 mg/L 2a 3/81-3/83 <br /> Arsenic <2.0 1.4 6 <I uq/L 21 3/81-L2/82 <br /> Barium <180 54 200 <20 ug/L 21 3/81-L2/82 <br /> Cadmium <5.1 0.3 6 <5 ug/L 21 3/8 L-12/92 <br />' Chromium <25 12 <20 ug/L 21 3/8L-L2/82 <br /> Lead ` ~4 330 1520 <20 ug/L 21 3/81-12/82 <br /> Mercury ~1 0 1 <1 ug/L 21 3/81-12/82 <br />' Selenium <2.1 <br />SECONDARY DRINKING WATER 3.1 <10 <1 ug/L 21 3/81-L2/82 <br /> Copper <ZO O 30 <20 ug/L 21 3/81-12/82 <br /> Zinc <52 66 257 <5 ug/L 21 3/81-12/82 <br />' MISC. TRACE METALS <br /> Aluminum <280 230 1200 <200 ug/L 21 3/81-12/82 <br /> Boron <127 121 530 10 ug/L 21 3/81-12/82 <br /> Molybdenum <210 62 400 <100 ug/L 21 3/BL-12/82 <br />' Nickel < 2a 8 50 <20 ug/L 19 6/BI-[Z/82 <br /> MINOR CONSTIT. <br /> Fluoride 0.39 0.16 0.84 O.18 mg/L 24 3/81-3/83 <br /> ~ Iran <8.03 8.41 32.5 <0.02 mg/L 24 3/81-3/83 <br />' Manganese <0.071 0.061 0.26 <0.02 mg/L 21 3/8 L-12/82 <br /> Sulphide <0.3 0.4 2.0 <0.2 mg/L 24 3/81-3/83 <br />' NUTRIENTS <br />N7trdgen,N03+N02 <br /><0.052 <br />0.080 <br />0.35 <0.02 <br />mg/L <br />24 <br />3/BL-3/83 <br /> N itrogen,Ammonium as N 0.31 0.22 1.14 0.10 mg/L 22 6/81-3/83 <br /> Phosphate, ortho as P-0.018 0.009 0.04 <0.01 mg/L 19 6/81-12!82 <br /> ORGANICS <br />' Cyanide <0.003 0.003 0.012<0.002 mg/L 24 3/81-3/83 <br /> u =micro <br /> All parameters total <br />N <br />f <br />i <br />l unless ot herwise indicated. <br /> nc <br />ield data <br />uded. <br />o <br /> •Oata for well 80-0 on 8/6/BL antl 3/81/82 not included because they are not <br />' representative. <br />\ 7 <br /> <br />/-o 7 <br />l ~ <br /> <br />