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.. <br />a <br />COLORADO <br />NALYTICAL \ <br />SOIL <br />WATER <br />ENVIRONMENTAL <br />LABORATORY <br />LANDMARK RECLAMATION <br />MARK KERR <br />05/14/93 PROJECT: RIMROCK MINE <br />PAGE 2 OF 2 SAMPLE RESULTS: <br /> USGS MONITOR MONTOYA <br /> 4-28-93 <br />-- 4-28-93 <br />- <br />- 4-28-93 <br />--- <br />- <br />TOTAL SUSPENDED SOLIDS mg/1 -- <br />--- <br />4 --- <br />-- <br />4 - <br />-- <br />1 <br />TOTAL DISSOLVED SOLIDS mg/1 411 623 1,438 <br />TOTAL HARDNESS as CaC03 mg/1 176.5 186.0 187.8 <br />CARBONATE mg/1 0 0 0 <br />BICARBONATE mg/1 219.7 420.0 308.8 <br />CALCIUM cNCoa~DE mg/1 70.6 74.4 75.1 <br />FLUORIDE mg/1 0.412 0.445 0.465 <br />MAGNESIUM mg/1 33.6 32.6 35.6 <br />NITROGEN - AMMMONIA mg/1 0.4 1.0 0.7 <br />NITROGEN - NITRATE mg/1 1.46 0.43 4.48 <br />PHOSPHATE mg/1 0.01 0.01 0.11 <br />POTASSIUM mg/1 2.5 4.2 3.9 <br />SODIUM mg/1 33.1 122.1 367.0 <br />SULFATE mg/1 183.8 236.0 777.0 <br />SULFIDE mg/1 <1 <1 <1 <br />ALUMINUM mg/1 0.061 0.018 0.020 <br />ARSENIC mg/1 0.008 0.004 0.003 <br />BARIUM go,~N mg/1 <.05 0.06 0.30 <br />CADMIUM mg/1 <.001 0.001 <.001 <br />CHROMIUM mg/1 <.02 <.02 <.02 <br />COPPER mg/1 0.022 0.023 0.028 <br />IRON mg/1 0.15 10.64 0.07 <br />LEAD mg/1 0.01 <.01 <.01 <br />MANGANESE mg/1 0.06 0.21 <.O1 <br />MERCURY mg/1 0.0001 0.0001 0.0002 <br />MOLYBDENUM mg/1 <.1 <.1 <.1 <br />NICKEL mg/1 <.01 <.01 <.01 <br />SELENIUM mg/1 0.054 <,001 0.087 <br />ZINC mg/1 0.199 0.024 0.008 <br />CATION/ANION BALANCE 1.021 1.028 1.039 <br />240 S. Mein Street • Brighton, Colorado 80601 • (303] 659-231 3 <br />Meiling Address P.O. Drawer 5D7, Brighton, CO 00601 <br />