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TABLE 783-I5 .4 <br /> GROUND tiyTATER QUALITY DATA, COAL CREEK ALLUVIL11f <br /> Weil location: SCOi008911CC3 <br /> Geoloabi c unit : al IUv4- <br /> Date of sample : 4/25/75 <br /> Dissolved silica (SIO,�) mg/1 5 . 9 <br /> Dissolved iron. (-Fe), mg/l 340* <br /> Dissolved manganese mg/l 140 <br /> Dissolved calcium (Ca) mg/l 59 <br /> Dissolved zlagnesium (Mg) mg/i 20* <br /> Dissolved sodium (Na) mg,/l 37 <br /> Dissolved potassium ('-:) mg/1 1 . t <br /> � <br /> Bicarbonate (i-iCO3) mg/1 309 <br /> Alkalinity as CaCO3 mg/l 253 <br /> Dissolved sulfate (SO4) mg/l 66 <br /> Dissolved chloride (Cl) mg/l 4. 1 <br /> (F) mg/i <br /> Dissolved fluoride <br /> Dissolved nitrite plus nivrate (N) mg/l . 05 <br /> Dissolved orthophosphate (?04) mg/l . 09 <br /> Dissolved so14-ds (sum, of constituents) m7/1 347 <br /> Hardness (Ca, ig) mg/1 230 <br /> Sodium adsorption ratio s <br /> Specific conductance micrcmhos 550 <br /> off units 7 . 0 <br /> Temperazure oC / 0 <br /> Dissolved arsenic (As) 7:2.1/1 0 <br /> (Y. Dissolved se+en gum (Se) m.911 0 <br /> *These levels of iron and magnesium are unusually high <br /> and are believed to be in error . No such levels were identified <br /> in water samples tested in 1980 and 1981 . <br /> i <br />