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HISTORICAL SUMMARY OF ANALYTICA <br />GROUNDWATER <br />FOOTHILL SANITARY LANDFILL <br />LW -1 <br />Units: mg/I, unless noted <br />Sample Designation LW -1 LW -1 LW -1 LW -1 LW -1 LW -1 LW -1 LW -1 LW -1 LW -1 LW -1 LW -1 LW -1 LW -1 LW -1 LW -1 . LW -1 LW -1 LW -1 <br />Sampling Date 7/5/94 11/28/94 5/30/03 8/14/03 1/22/04 7/21/04 2/2/05 7/27/05 3/28/06 7/27/06 1/31/07 7/23/07 2/5/08 7/30/08 1/15/09 8/17/09 10/7/09 2/4/10 9/2/10 <br />Constituents of Concern Parameters <br />Semivolatile Organic Compounds (EPA Method: <br />All Compounds NA <br />Organochlorine Pesticides and Polychlorinated B <br />(EPA Method 3510/8080) <br />All Compounds NA <br />* = Trace Concentration <br />(I) This analytical result appears to be anomalou: <br />{Q } Parameter also detected in one or more qualii <br />NA = Not Available <br />NA NA NA NA NA NA NA NA NA NA NA NA NA NA ND NA NA NA <br />NA NA NA NA NA NA NA NA NA NA NA NA NA NA ND NA NA NA <br />Constituents of Concern Parameters <br />Chlorinated Herbicides <br />(EPA Method 8150A Modified) <br />All Compounds <br />Metals <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 />NA <br />ND <br />NA <br />NA <br />NA <br />Aluminum, Dissolved <br /><0.05 <br />NA <br />NA <br />NA <br />NA <br />0.036* <br />NA <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 />Antimony, Dissolved <br /><0.05 <br /><0.02 <br />NA <br />NA <br />NA <br />0.000020* <br />NA <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 />Arsenic, Dissolved <br /><0.005 <br />NA <br />NA <br />NA <br />NA <br />0.0011 <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />0.0017* <br />NA <br />NA <br />NA <br />Barium, Dissolved <br />Beryllium, Dissolved <br />Boron, Dissolved <br />NA <br />NA <br />NA <br />0.11 <br /><0.0005 <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />0.11 <br />0.0021* <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 />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 />0.12 <br /><0.0011 <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />Cadmium, Dissolved <br /><0.005 <br /><0.002 <br />NA <br />NA <br />NA <br /><0.000018 <br />NA <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 />Chromium, Total Dissolved <br /><0.01 <br />NA <br />NA <br />NA <br />NA <br />0.0046* <br />NA <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 />Chromium Hexavalent <br />Cobalt, Dissolved <br />NA <br />NA <br />0.027 <br /><0.003 <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />0.0030* <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 />NA <br />NA <br />NA <br />NA <br />NA <br /><0.0037 <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />Copper, Dissolved <br /><0.01 <br />NA <br />NA <br />NA <br />NA <br />0.0026* <br />NA <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 />Iron, Dissolved <br /><0.05 <br />0.027 <br />NA <br />NA <br />NA <br />0.0056* <br />NA <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 />Lead, Dissolved <br /><0.002 <br /><0.001 <br />NA <br />NA <br />NA <br />0.000071* <br />NA <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 />Manganese, Dissolved <br /><0.01 <br />0.007 <br />NA <br />NA <br />NA <br />0.0017* <br />NA <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 />Mercury, Dissolved <br /><0.0005 <br /><0.0001 <br />NA <br />NA <br />NA <br /><0.000032 <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br /><0.000016 <br />NA <br />NA <br />NA <br />Nickel, Dissolved <br /><0.04 <br /><0.007 <br />NA <br />NA <br />NA <br />0.00054* <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />0.0011* <br />NA <br />NA <br />NA <br />Selenium, Dissolved <br /><0.005 <br /><0.001 <br />NA <br />NA <br />NA <br />0.00043* <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br /><0.00038 <br />NA <br />NA <br />NA <br />Silver, Dissolved <br /><0.01 <br />NA <br />NA <br />NA <br />NA <br /><0.01 <br />NA <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 />Thallium, Dissolved <br /><0.005 <br /><0.001 <br />NA <br />NA <br />NA <br /><0.000016 <br />NA <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 />Tin, Dissolved <br />Vanadium, Dissolved <br />NA <br />NA <br /><0.01 <br />0.011 <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br /><0.033 <br />0.012* <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 />NA <br />NA <br />NA <br />NA <br /><0.007 <br />0.0097* <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />Zinc, Dissolved <br /><0.01 <br />0.012 <br />NA <br />NA <br />NA <br />0.0058* <br />NA <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 />Alkalinity as CaCO3 <br />100 <br />104 <br />100 <br />100 <br />110 <br />100 <br />110 <br />110 <br />105 <br />104 <br />110 <br />NA <br />NA <br />100 <br />110 <br />NA <br />NA <br />100 <br />100 <br />Carbonate Alkalinity as CaCO3 <br /><5 <br /><2 <br /><5.0 <br /><5.0 <br /><5.0 <br /><5.0 <br /><2.2 <br /><5.0 <br /><2 <br /><3 <br />NA <br />NA <br />NA <br /><2 <br /><2 <br /><2.5 <br />NA <br /><2.5 <br /><2.5 <br />Bicarbonate Alkalinity as HCO3 <br />100 <br />104 <br />100 <br />100 <br />110 <br />100 <br />110 <br />110 <br />105 <br />104 <br />130 <br />130 <br />140 <br />130 <br />140 <br />130 <br />NA <br />130 <br />120 <br />Hydroxide Alkalinity as CaCO3 <br />Cyanide <br />NA <br />NA <br />NA <br /><0.003 <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 />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br /><2 <br />NA <br /><2 <br />NA <br />NA <br /><0.0028 <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />Sulfide <br /><0.1 <br /><2 <br />NA <br />NA <br />NA <br />0.044* <br />NA <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 />Total Organic Carbon <br /><0.5 <br /><0.2 <br />NA <br />NA <br />NA <br />1.8 <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />{0.24} <br />NA <br />NA <br />NA <br />* = Trace Concentration <br />[I] This analytical result appears to be anomalou: <br />{I } Parameter also detected in one or more qualii <br />NA = Not Available <br />n:\consulting\data\shared\projects\xls\gmr\79\791289\FH-Hist.xls <br />