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M M M®®®=® M®® M w r M®®® M <br />HISTORICAL SUMMARY OF ANALYTICA <br />GROUNDWATER <br />FOOTHILL SANITARY LANAFILL <br />MW -3 <br />Units: mg/l, unless noted <br />Sample Designation MW -3 MW -3 MW -3 MW -3 MW -3 MW -3 MW -3 MW -3 MW -3 MW -3 MW -3 MW -3 MW -3 MW -3 MW -3 MW -3 MW -3 MW -3 MW -3 <br />Sampling Date 7/27/05 3/28/06 7/27/06 1/31/07 7/23/07 2/6/08 7/31/08 1/15/09 8/18/09 10/8/09 11/2/09 2/4/10 9/2/10 1/26/11 4/13/11 8/10/11 1/12/12 7/25/12 2/4/13 <br />Constituents. of Concern Parameters <br />Alkalinity as CaCO3 <br />110 <br />109 <br />116 <br />100 <br />NA <br />NA <br />110 <br />110 <br />NA <br />NA <br />NA <br />110 <br />110 <br />110 <br />NM <br />110 <br />110 <br />110 <br />110 <br />Carbonate Alkalinity as CaCO3 <br /><5.0 <br /><2 <br />4* <br />NA <br />NA <br />NA <br /><2.0 <br /><2.0 <br /><2.5 <br />NA <br />NA <br />3.1 <br /><2.5 <br /><2.5 <br />NM <br /><2.5 <br /><2.5 <br /><2.5 <br /><2.5 <br />Bicarbonate Alkalinity as HCO3 <br />110 <br />109 <br />112 <br />130 <br />130 <br />110 <br />130 <br />140 <br />130 <br />NA <br />NA <br />130 <br />130 <br />130 <br />NM <br />130 <br />130 <br />130 <br />140 <br />Hydroxide Alkalinity as CaCO3 <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br /><2.0 <br /><2.0 <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NM <br />NA <br />NA <br />NA <br />NA <br />Cyanide <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br /><0.0028 <br />NA <br />NA <br />NA <br />NA <br />NA <br />NM <br />NA <br />NA <br />NA <br />NA <br />Sulfide <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br /><0.05 <br />NA <br />NA <br />NA <br />NA <br />NA <br />NM <br />NA <br />NA <br />NA <br />NA <br />Total Organic Carbon <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />0.31 <br />NA <br />NA <br />NA <br />NA <br />NA <br />NM <br />NA <br />NA <br />NA <br />NA <br />Calcium <br />23.9 <br />26.3 <br />25.6 <br />21 <br />22 <br />16 <br />20 <br />21 <br />22 <br />NA <br />NA <br />21 <br />22 <br />22 <br />NM <br />22 <br />22 <br />21 <br />22 <br />Potassium <br />11.4 <br />13.8 <br />13.1 <br />11 <br />3.5 <br />33 <br />3.4 <br />3.3 <br />3.6 <br />NA <br />NA <br />3.6 <br />3.6 <br />3.6 <br />NM <br />3.3 <br />3.6 <br />3.6 <br />3.5 <br />Magnesium <br />42.1 <br />4.45 <br />3.8 <br />5.3 <br />11 <br />8.1 <br />12 <br />12 <br />12 <br />NA <br />NA <br />12 <br />12 <br />12 <br />NM <br />12 <br />12 <br />12 <br />12 <br />Sodium <br />16 <br />18.7 <br />17.9 <br />18 <br />16 <br />12 <br />15 <br />15 <br />17 <br />NA <br />NA <br />17 <br />16 <br />17 <br />NM <br />17 <br />16 <br />17 <br />17 <br />Metals <br />Aluminum, Dissolved <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br /><0.038 <br />NA <br />NA <br />NA <br />NA <br />NA <br />NM <br />NA <br />NA <br />NA <br />NA <br />Antimony, Dissolved <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br /><0.034 <br />NA <br />NA <br />NA <br />NA <br />NA <br />NM <br />NA <br />NA <br />NA <br />NA <br />Arsenic, Dissolved <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />0.0018* <br />NA <br />NA <br />NA <br />NA <br />NA <br />NM <br />NA <br />NA <br />NA <br />NA <br />Barium, Dissolved <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />0.09 <br />NA <br />NA <br />NA <br />NA <br />NA <br />NM <br />NA <br />NA <br />NA <br />NA <br />Beryllium, Dissolved <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br /><0.001 I <br />NA <br />NA <br />NA <br />NA <br />NA <br />NM <br />NA <br />NA <br />NA <br />NA <br />Boron, Dissolved <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NM <br />NA <br />NA <br />NA <br />NA <br />Cadmium, Dissolved <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br /><0.0006 <br />NA <br />NA <br />NA <br />NA <br />NA <br />NM <br />NA <br />NA <br />NA <br />NA <br />Chromium, Total Dissolved <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />0.0016* <br />NA <br />NA <br />NA <br />NA <br />NA <br />NM <br />NA <br />NA <br />NA <br />NA <br />Chromium Hexavalent <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NM <br />NA <br />NA <br />NA <br />NA <br />Cobalt, Dissolved <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br /><0.0037 <br />NA <br />NA <br />NA <br />NA <br />NA <br />NM <br />NA <br />NA <br />NA <br />NA <br />Copper, Dissolved <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br /><0.0015 <br />NA <br />NA <br />NA <br />NA <br />NA <br />NM <br />NA <br />NA <br />NA <br />NA <br />Iron, Dissolved <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br /><0.0093 <br />NA <br />NA <br />NA <br />NA <br />NA <br />NM <br />NA <br />NA <br />NA <br />NA <br />Lead, Dissolved <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br /><0.000054 <br />NA <br />NA <br />NA <br />NA <br />NA <br />NM <br />NA <br />NA <br />NA <br />NA <br />Manganese, Dissolved <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br /><0.00011 <br />NA <br />NA <br />NA <br />NA <br />NA <br />NM <br />NA <br />NA <br />NA <br />NA <br />Mercury, Dissolved <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />0.00003* <br />NA <br />NA <br />NA <br />NA <br />NA <br />NM <br />NA <br />NA <br />NA <br />NA <br />Nickel, Dissolved <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />0.00097* <br />NA <br />NA <br />NA <br />NA <br />NA <br />NM <br />NA <br />NA <br />NA <br />NA <br />Selenium, Dissolved <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />0.00067* <br />NA <br />NA <br />NA <br />NA <br />NA <br />NM <br />NA <br />NA <br />NA <br />NA <br />Silver, Dissolved <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br /><0.0018 <br />NA <br />NA <br />NA <br />NA <br />NA <br />NM <br />NA <br />NA <br />NA <br />NA <br />Thallium, Dissolved <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br /><0.021 <br />NA <br />NA <br />NA <br />NA <br />NA <br />NM <br />NA <br />NA <br />NA <br />NA <br />Tin, Dissolved <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br /><0.007 <br />NA <br />NA <br />NA <br />NA <br />NA <br />NM <br />NA <br />NA <br />NA <br />NA <br />Vanadium, Dissolved <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />0.017 <br />NA <br />NA <br />NA <br />NA <br />NA <br />NM <br />NA <br />NA <br />NA <br />NA <br />Zinc, Dissolved <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br /><0.0023 <br />NA <br />NA <br />NA <br />NA <br />NA <br />NM <br />NA <br />NA <br />NA <br />NA <br />* = NA Concentration <br />[1] This analytical result appears to be anomalous <br />( 1 ) Parameter also detected in one or more qualii <br />NA = Not Available <br />n:\consulting\data\shared\prof ects\xls\gmr\79\791289\FH-Hist.ads <br />