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Rollins 4 Chemical Analysis GE-9 <br /> June 1 997 to Present <br />North 1,007,075 <br />East 117,090 <br />Elevation 4950.0 Sealed <br /> as of 4/00 <br />Field Parameters 6/30/97 9/23/97 9/30/98 10/28/99 <br />pH SU 8.3 8.6 8.5 9.7 <br />Conductivity umhoslcm 1580 1210 1100 770 <br />Temperature (F) 66 66 66 <br />Static Water Level Feet 7.15 7.35 6.87 6.9 <br />Laboratory Results 8/11/99 <br />Alkalinity as CO3 Carbonate mg/I 560 <br />Aluminum, Dis. mg/I 0.02 <br />Antimony, Dis. ug/I 4.00 <br />Arsenic, Dis. ug/I 12.00 <br />Barium, Dis. ug/I 130.0 <br />Berillium,Dis. ug/I <1.00 <br />Boron, Dis. ug/I 75.00 <br />Cadmium, Dis. ug/I 1.2 <br />Calcium, Dis. mg/I 10.0 2.9 9.2 8.3 <br />Chloride, CI mg/I 20 43 11 8 <br />Chromium, Dis. ug/I <1.00 <br />Cobalt, Dis. ug/I <1.00 <br />Copper ug/I 6.00 <br />Cyanide mg/I <0.00 <br />Fluoride mg/I 1.28 <br />Hardness as CaCO3 mg/l 37.3 <br />Iron, Dis. mg/I 1.68 <br />Lead, Dis. ug/I <1.00 <br />Lithium, Dis. ug/I 90.00 <br />Magnesium, Dis. mg/I 3.00 4.1 6.2 8.2 <br />Manganese, Dis. mg/I 0.02 <br />Mercury, Dis. ug/I <0.05 <br />Molybdenum, Dis. ug/I <5.00 <br />Nickel, Dis. ug/I <2.00 <br />Nitrate, Nitrogen mgA <0.01 <br />Nitrite, Nitrogen mg/I <0.01 <br />pH, @ 25 Deg. C SU 8.3 <br />Potassium, Dis. mg/I 62.0 11.5 9.9 9.6 <br />Selenium, Dis. ug/I <2.00 <br />Silver, Dis. ug/I <0.02 <br />Sodium, Dis. mg/l 306 274 199 178 <br />Solids, Total Dissolved mg/I 1110 690 563 573 <br />Sulfate, SO4 mg/I 220 27.0 87 94 <br />Thallium, Dis. ug/I <1.00 <br />Vanadium, Dis, ug/I 10.00 <br />Zinc, Dis. mg/I 1.24 <br />Bicarbonate, Alkalinity, as HCO3 mg/I 686 531 398 408 <br />Carbonate, as CO3 mg/I <5.00 42 43 21 <br />Cation/Anion Balance % -1.9 <br />SAR Ratio 21.8 <br />