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Parameters <br />Units <br />1994 <br />1995 <br />Mean <br />1996 <br />Mean <br />1997 <br />1998 <br />1999 <br />2000 <br />2001 <br />2002 <br />2003 <br />2004 <br />2005 <br />2006 <br />2007 <br />2008 <br />2009 <br />2010 <br />Statistics <br />Mean <br />Min. <br />Max. <br />Depth, mean <br />feet <br />279.8 <br />288.88 <br />350.09 <br />363 4 <br />350 <br />348.9 <br />349 5 <br />351.8 <br />363 8 <br />368.6 <br />379.0 <br />381.7 <br />347.9 <br />Depth, minimum <br />feet <br />275 <br />274 <br />342.93 <br />361.0 <br />347 <br />348.1 <br />348.6 <br />349 6 <br />355.4 <br />368.6 <br />373 2 <br />381.6 <br />343 8 <br />274 <br />Depth, maximum <br />feet <br />284.6 <br />320.7 <br />357.25 <br />371.4 <br />352 <br />349.6 <br />350 3 <br />354 <br />372.1 <br />368 6 <br />384.7 <br />381.7 <br />353.9 <br />384.7 <br />pH mean (field) <br />standard <br />12 4 <br />10 8 <br />10 33 <br />9.5 <br />10.74 <br />pH minimum (field) <br />standard <br />12 2 <br />8.91 <br />10 0 <br />9.2 <br />10 08 <br />8.91 <br />pH maximum (field) <br />standard <br />12 6 <br />12.26 <br />10.85 <br />9.9 <br />11.40 <br />12.59 <br />pH (lab) <br />standard <br />Conductivity, mean <br />umhos/cm <br />1154 <br />658 <br />635 <br />815.67 <br />Conductivity, minimum <br />umhos /cm <br />643 <br />518 <br />619 <br />593 33 <br />518 <br />Conductivity, maximum <br />umhos/cm <br />1665 <br />892 <br />655 <br />1070.67 <br />1665 <br />Temperature , mean <br />°C <br />13.9 <br />16.9 <br />15.0 <br />12.9 <br />14.663 <br />Temperature, minimum <br />°C <br />13.8 <br />13.8 <br />11.8 <br />118 <br />39.35 <br />11.8 <br />Temperature, maximum <br />°C <br />13 9 <br />19.2 <br />18.5 <br />14.1 <br />16.43 <br />19.2 <br />Dissolved oxygen <br />pptn <br />Iron (total) <br />mg /I <br />2.1 <br />0.99 <br />46 99 <br />16 69 <br />0.99 <br />46.99 <br />Iron (total recoverable) <br />mg /1 <br />Iron (dissolved) <br />mg /1 <br />TSS <br />mg /I <br />37.8 <br />68 <br />52.90 <br />37.8 <br />68 <br />TDS pr, 1800 <br />mg /1 <br />2140 <br />980 <br />370 <br />1163.33 <br />370 <br />2140 <br />TDS (calculated) <br />mg /I <br />584.5 <br />465 <br />524.75 <br />465 <br />584.5 <br />TCS <br />mg /1 <br />Carbonate <br />mg /1 <br />300 <br />297.33 <br />222 <br />273.11 <br />222 <br />300 <br />Bicarbonate <br />mg /1 <br />25 67 <br />117 <br />71 335 <br />25.67 <br />117 <br />Manganese <br />mg /I <br />0 05 <br />0.01 <br />0.48 <br />0.18 <br />0.01 <br />0.48 <br />Manganese (total) <br />mg /I <br />Manganese (dissolved) <br />mg /I <br />Sodium <br />mg /1 <br />348 <br />236 33 <br />161 <br />248 44 <br />161 <br />348 <br />Sodium (dissolved) <br />mg /1 <br />Chloride <br />mg /1 <br />5 <br />7 <br />4 <br />5.33 <br />4 <br />7 <br />Sulfate <br />mg /1 <br />110 <br />28 67 <br /><10 <br />69.34 <br /><10 <br />110 <br />Calcium <br />mg /I <br />567 <br />164.27 <br />1.4 <br />244.22 <br />1.4 <br />567 <br />Calcium (dissolved) <br />mg /I <br />Magnesium <br />mg /I <br /><0.2 <br /><0.2 <br /><0.2 <br /><0 2 <br /><0.2 <br />Magnesium (dissolved) <br />mg /1 <br />Potassium <br />mg /1 <br />54 <br />22.27 <br />18 <br />26.023 <br />1.8 <br />54 <br />Potassium (dissolved) <br />mg /I <br />Hydroxide <br />mg /1 <br />1970 <br />662.33 <br /><2 <br />1316 2 <br /><2 <br />1970 <br />Fluoride <br />mg /1 <br />0.9 <br />3 <br />5 <br />2.9667 <br />0.9 <br />5 <br />Lead <br />mg /I <br />0.03 <br /><0 03 <br /><0.02 <br />0.03 <br /><0.02 <br />0.03 <br />Lead (dissolved) <br />mg /1 <br />Selenium <br />mg /1 <br /><0.001 <br /><0.001 <br /><0.001 <br /><0.001 <br /><0.001 <br />Selenium (dissolved) <br />mg /1 <br />Mercury <br />mg /1 <br />SAR <br />standard <br />3.8 <br />26.84 <br />37.9 <br />22.85 <br />3.8 <br />37.9 <br />Settleable solids <br />mg /I <br />Zinc <br />mg /I <br />Hardness <br />mg/I <br />6 <br />6 <br />6 <br />6 <br />Table B -11. NM -20, Summary of Water Quality Data <br />