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HISTORICAL SUMMARY OF ANALYTICAL RESULTS <br />GROUNDWATER <br />FOOTHILL SANITARY LANAFILL <br />Units: mg/l, unless noted <br />Sample Designation <br />MW -3 <br />MW -3 <br />MW -3 <br />MW -3 <br />MW -3 <br />MW -3 <br />MW -3 <br />MW -3 <br />MW -3 <br />MW -3 <br />MW -3 <br />MW -3 <br />MW -3 <br />MW -3 <br />MW -3 <br />MW -3 <br />MW -3 <br />MW -3 <br />MW -3 <br />MW -3 <br />Sampling Date <br />1/16/95 <br />4/20/95 <br />7/6/95 <br />10/11/95 <br />1/4/96 <br />4/2/96 <br />7/9/96 <br />10/2/96 <br />1/16/97 <br />4/10/97 <br />7/10/97 <br />10/3/97 <br />3/11/98 <br />4/30/98 <br />7/7/98 <br />10/9/98 <br />1/15/99 <br />4/1/99 <br />7/7/99 <br />10/20/99 <br />Total Organic Carbon <br />NA <br />NA <br />NA <br />NA <br /><0.5 <br /><0.5 <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 />1.01* <br />Constituents of Concern Parameters <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 />Potassium <br />Alkalinity as CaCO3 <br />NA <br />NA <br />100 <br />100 <br />100 <br />98 <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 />118 <br />Carbonate Alkalinity as CaCO3 <br />NA <br />NA <br /><4 <br /><4 <br /><4 <br /><0.4 <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 /><0.808 <br />_ _Bicarbonate Alkalinity as HCO3 <br />NA <br />NA <br />100 <br />100 <br />100 <br />98 <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 />118 <br />Hydroxide Alkalinity as CaCO3 <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 />Cyanide <br /><0.003 <br /><0.003 <br /><0.003 <br /><0.02 <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 /><0.002 <br />Sulfide <br />NA <br />NA <br /><2 <br /><0.6 <br /><0.6 <br /><0.6 <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 /><0.5 <br />Total Organic Carbon <br />NA <br />NA <br />NA <br />NA <br /><0.5 <br /><0.5 <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 />1.01* <br />Calcium <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 />Potassium <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 />Magnesium <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 />Sodium <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 />Aluminum, Dissolved <br />NA <br />NA <br />0.061 <br /><0.05 <br /><0.05 <br /><0.05 <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 /><0.028 <br />Antimony, Dissolved <br />NA <br />NA <br /><0.02 <br /><0.05 <br /><0.05 <br /><0.05 <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 /><0.0138 <br />Arsenic, Dissolved <br />NA <br />NA <br /><0.001 <br /><0.002 <br /><0.002 <br /><0.002 <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 /><0.0192 <br />Barium, Dissolved <br />0.027 <br />0.036 <br />0.066 <br />0.06 <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 />0.0757* <br />Beryllium, Dissolved <br /><0.001 <br /><0.001 <br />NA <br /><0.002 <br /><0.002 <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 /><0.0012 <br />Boron, Dissolved <br />NA <br />NA <br />NA <br /><0.05 <br /><0.05 <br /><0.05 <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 /><0.022 <br />Cadmium, Dissolved <br /><0.002 <br />NA <br /><0.003 <br /><0.003 <br /><0.003 <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 /><0.0036 <br />Chromium, Total Dissolved <br />NA <br />NA <br /><0.004 <br /><0.005 <br /><0.005 <br /><0.005 <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 /><0.0056 <br />Chromium Hexavalent <br />NA <br />NA <br />NA <br /><0.0023 <br /><0.0023 <br /><0.0023 <br /><0.0023 <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 /><0.000 <br />Cobalt, Dissolved <br /><0.004 <br /><0.005 <br /><0.005 <br /><0.01 <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 /><0.0028 <br />Copper, Dissolved <br /><0.004 <br />NA <br />NA <br /><0.01 <br /><0.01 <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 /><0.0042 <br />Iron, Dissolved <br />NA <br />NA <br />NA <br /><0.02 <br />0.05 <br />0.08 <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 /><0.0064 <br />Lead, Dissolved <br />NA <br />NA <br /><0.001 <br />NA <br /><0.001 <br /><0.001 <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 /><0.0198 <br />Manganese, Dissolved <br />NA <br />NA <br />0.083 <br /><0.005 <br /><0.005 <br /><0.005 <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 />0.00253* <br />Mercury, Dissolved <br />NA <br />NA <br /><0.0001 <br /><0.0005 <br /><0.0005 <br /><0.0005 <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 /><0.0002 <br />Nickel, Dissolved <br />NA <br />NA <br /><0.019 <br /><0.02 <br /><0.02 <br /><0.005 <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 /><0.0106 <br />Selenium, Dissolved <br />NA <br />NA <br /><0.002 <br /><0.003 <br /><0.003 <br /><0.003 <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 /><0.036 <br />Silver, Dissolved <br />NA <br />NA <br /><0.002 <br /><0.005 <br /><0.005 <br /><0.005 <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 /><0.0026 <br />Thallium, Dissolved <br /><0.001 <br />NA <br /><0.001 <br /><0.003 <br /><0.003 <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 /><0.024 <br />Tin, Dissolved <br /><0.010 <br /><0.012 <br /><0.012 <br /><0.1 <br />NA <br /><0.1 <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 /><0.0426 <br />Vanadium, Dissolved <br />0.015 <br />0.017 <br />0.018 <br />0.02 <br />NA <br />0.01 <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 />0.0168* <br />Zinc, Dissolved <br />NA <br />NA <br />NA <br /><0.01 <br /><0.01 <br /><0.01 <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 /><0.0026 <br />= NA Concentration <br />[ I ) This analytical result appears to be anomalous aNA therefore was not used in statistical evaluation procedures <br />(I ) Parameter also detected in one or more quality control blanks <br />NA = Not Available <br />