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COLORADO <br />~ ANALYTICAL ~ <br />SOIL <br />WATER <br />ENVIRONMENTAL <br />LABORATORY <br />LANDMARK RECLAMATION <br />MARK KERR <br />11/04/93 PROJECT: RIMROCK MINE <br />PAGE 2 OF 2 SAMPLE RESULTS: <br /> MONTOYA WELL USGS EMD WELL 29-4 <br /> <br />TOTAL SUSPENDED SOLIDS - <br />mg/1 ----------- <br />3 ---- <br />2 --- <br />7 --------- <br />7 <br />TOTAL DISSOLVED SOLIDS mg/1 2,069 2,062 2,373 2,333 <br />TOTAL HARDNESS as CeC03 mg/1 374,3 351.0 136.8 145.5 <br />CARBONATE mg/1 0.0 0.0 16.4 8.8 <br />BICARBONATE mg/1 447.8 420.0 27G.1 271.3 <br />CALCIUM mg/1 149.7 140.4 54.7 58.2 <br />FLUORIDE mg/1 0.540 0.549 0.521 0.535 <br />MAGNESIUM mg/1 46.7 45.6 50.9 54.2 <br />NITROGEN - AMMMONIA mg/1 (.1 0.3 <.1 <.1 <br />NITROGEN - NITRATE mg/1 4.73 2.49 <.1 <.1 <br />PHOSPHATE mg/1 4.22 0.24 <.01 <.01 <br />POTASSIUM mg/1 5.3 7.0 7.2 7.9 <br />SODIUM mg/1 472.0 505.0 629.0 655.0 <br />SULFATE mg/1 1133.6 1233.8 1347.0 1499.3 <br />SULFIDE mg/1 <1 <1 <1 <1 <br />ALUMINUM mg/1 0.187 0.133 0.212 0.162 <br />ARSENIC mg/1 (.001 0.001 0.003 0.002 <br />BARIUM mg/1 0.39 0.38 0.62 0.61 <br />CADMIUM mg/1 0.005 0.005 0.002 0.002 <br />CHROMIUM mg/1 <.02 <.02 <.02 <.02 <br />COPPER mg/1 0.011 0.011 0.016 0.018 <br />IRON mg/1 0.02 0.01 0.04 0.05 <br />LEAD mg/1 <.01 <.01 <.01 <.01 <br />MANGANESE mg/1 0.03 <.01 <.01 0.01 <br />MERCURY mg/1 (.0001 (.0001 (.0001 (.0001 <br />MOLYBDENUM mg/1 <.1 <.1 <.1 <.1 <br />NICKEL mg/1 0.04 0.01 0.02 0.02 <br />SELENIUM mg/1 0.052 0.054 0.027 0.026 <br />ZINC mg/1 0.015 0.012 0.005 0.008 <br />CATION/ANION BALANCE 1.002 0.996 1.030 0.993 <br />CHLORIDE mg/1 17.0 11.2 15.4 14.4 <br />BORON mg/1 0.16 0.10 0.10 0.13 <br />pH units 7.37 7.38 8.87 8.47 <br />SPEC. CONDUCTANCE umh os/cm 3,372.7 3,430.9 4,041.4 4,047.2 <br />(® 25c) <br /> <br /> <br />240 S. Main Street • Brighton, Colorado 80601 • [303] 659-231 3 <br />Meiling Addreee: P.O. Drawer 507. Brighton. CO 80601 <br />