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AOZ Laboratories, Inc. <br />2773 Downhill Drive Steamboat SDrinos. CO 80487 (800) 334 -5493 <br />' Golder Associates <br />Project ID: 10381640Y3 <br />Sample ID: MW -7 <br />1 <br />_; <br />r <br />Metals Analysis <br />ACZ Sample ID <br />Date Sampled <br />Date Received <br />Sample Matrix <br />L15611 -08 <br />11/14/13 15:30 <br />11/19/13 <br />Ground Water <br />Parameter <br />EPA 4. <br />l. <br />Arsenic, dissolved <br />M200.8 ICP-MS <br />10 <br />0.008 <br />B <br />mg /L <br />0.002 <br />0.01 <br />12/03/13 12:09 <br />msh <br />Barium, dissolved <br />M200.7 ICP <br />5 <br />2.08 <br />mg /L <br />0.02 <br />0.08 <br />11/22/13 16:14 <br />aeb <br />Boron, dissolved <br />M200.7 ICP <br />5 <br />0.75 <br />mg /L <br />0.05 <br />0.3 <br />11/22/13 16:14 <br />aeb <br />Calcium, dissolved <br />M200.7 ICP <br />5 <br />72 <br />mg /L <br />1 <br />5 <br />11/22113 16:14 <br />aeb <br />Chromium, dissolved <br />M200.8 ICP -MS <br />10 <br />U <br />mg /L <br />0.005 <br />0.02 <br />12/03/13 12:09 <br />msh <br />Copper, dissolved <br />M200.7 ICP <br />5 <br />U * <br />mg /L <br />0.05 <br />0.3 <br />11/22/13 16:14 <br />aeb <br />Iron, dissolved <br />M200.7 ICP <br />5 <br />2.9 <br />mg /L <br />0.1 <br />0.3 <br />11/22/13 16:14 <br />aeb <br />Lead, dissolved <br />M200.81CP -MS <br />10 <br />U <br />mg /L <br />0.001 <br />0.005 <br />12/03/13 12:09 <br />msh <br />Magnesium, dissolved <br />M200.7 ICP <br />5 <br />25 <br />mg /L <br />1 <br />5 <br />11/22/13 16:14 <br />aeb <br />Manganese, dissolved <br />M200.7 ICP <br />5 <br />0.61 <br />* <br />mg /L <br />0.03 <br />0.1 <br />11/22/13 16:14 <br />aeb <br />Potassium, dissolved <br />M200.7 ICP <br />5 <br />11 <br />mg /L <br />2 <br />8 <br />11/22/13 16:14 <br />aeb <br />Selenium, dissolved <br />M200.8 ICP-MS <br />10 <br />0.002 <br />B <br />mg /L <br />0.001 <br />0.003 <br />12/03/13 12:09 <br />msh <br />Sodium, dissolved <br />M200.7 ICP <br />5 <br />4280 <br />mg /L <br />2 <br />8 <br />11/22/13 16:14 <br />aeb <br />Thallium, dissolved <br />M200.8 ICP -MS <br />10 <br />U <br />mg /L <br />0.001 <br />0.005 <br />12/03/13 12:09 <br />msh <br />Zinc, dissolved <br />M200.7 ICP <br />5 <br />7.9 <br />U <br />mg /L <br />0.05 <br />0.3 <br />11/22/13 16:14 <br />aeb <br />Wet Chemistry <br />Parameter <br />EPA Dilution <br />Method <br />Result <br />Qual <br />XQ Units <br />MDL <br />POL <br />Date Analyst <br />Alkalinity as CaCO3 <br />SM2320B - Titration <br />Bicarbonate as <br />1 <br />715 <br />mg /L <br />2 <br />20 <br />11/19/13 0:00 <br />khw <br />CaCO3 <br />Carbonate as CaCO3 <br />1 <br />U <br />mg /L <br />2 <br />20 <br />11/19/13 0:00 <br />khw <br />Hydroxide as CaCO3 <br />1 <br />U <br />mg /L <br />2 <br />20 <br />11/19/13 0:00 <br />khw <br />Total Alkalinity <br />1 <br />715 <br />mg /L <br />2 <br />20 <br />11/19/13 0:00 <br />khw <br />Cation -Anion Balance <br />Calculation <br />Cation -Anion Balance <br />-0.8 <br />% <br />12/04/13 9:30 <br />calc <br />Sum of Anions <br />197 <br />meq /L <br />0.1 <br />0.5 <br />12/04/13 9:30 <br />calc <br />Sum of Cations <br />194 <br />meq /L <br />0.1 <br />0.5 <br />12/04/13 9:30 <br />calc <br />Chloride <br />M300.0 - Ion Chromatography <br />100 <br />6430 <br />mg /L <br />50 <br />250 <br />11/22/13 0:56 <br />tcd <br />Fluoride <br />SM450OF -C <br />1 <br />1.1 <br />* mg /L <br />0.1 <br />0.5 <br />12/02/1314:32 <br />abm <br />pH (lab) <br />SM4500H+ B <br />pH <br />1 <br />7.9 <br />H <br />units <br />0.1 <br />0.1 <br />11/19/13 0:00 <br />khw <br />pH measured at <br />1 <br />25 <br />C <br />0.1 <br />0.1 <br />11/19/13 0:00 <br />khw <br />Residue, Filterable <br />SM2540C <br />5 <br />10700 <br />H <br />mg /L <br />50 <br />100 <br />11/25/13 11:42 <br />khw <br />(TDS) @180C <br />Sulfate <br />M300.0 - Ion Chromatography <br />100 <br />130 <br />B <br />mg /L <br />50 <br />250 <br />11/22/13 0:56 <br />tcd <br />TDS (calculated) <br />Calculation <br />11400 <br />mg /L <br />10 <br />50 <br />12/04/13 9:30 <br />calc <br />TDS (ratio - <br />Calculation <br />0.94 <br />12/04/13 9:30 <br />talc <br />measured /calculated) <br />REPIN.02.06.05.01 * Please refer to Qualifier Reports for details. <br />1 Page 10 of 26 <br />