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® HIS AL ANWWAL INNS <br />GROUNDWATER <br />CORRAL HOLLOW SANITARY LANDFILL <br />MW -4 <br />Units: me unless noted <br />Sample Designation MW -4 MW4 MW -4 MW -4 MW -4 MW -4 MW -4 MW -4 MW -4 MW -4 MW -4 MW -4 MW -4 MW -4 MW -4 MW -4 <br />Sampling Date 4/14/08 7/14/08 10/13/08 1/19/09 5/28/09 7/20/09 10/12/09 2/15/10 5/19/10 8/5/10 10/18/10 1/27/11 4/7/11 7/21/11 11/16/11 1/23/12 <br />Constituents of Concern <br />Alkalinity as CaCO3 <br />NA <br />100 <br />380 <br />380 <br />350 <br />350 <br />350 <br />NR <br />350 <br />230 <br />350 <br />340 <br />350 <br />350 <br />360 <br />350 <br />Carbonate Alkalinity as CaCO3 <br />NA <br /><2.0 <br /><2.0 <br /><2.0 <br /><2.0 <br /><5.0 <br /><5.0 <br /><5.0 <br /><5.0 <br /><2.5 <br /><5.0 <br /><5.0 <br /><5.0 <br /><5.0 <br /><5.0 <br /><5.0 <br />Bicarbonate Alkalinity as HCO3 <br />510 <br />490 <br />460 <br />460 <br />430 <br />430 <br />430 <br />400 <br />420 <br />280 <br />430 <br />420 <br />420 <br />430 <br />440 <br />430 <br />Hydroxide Alkalinity as CaCO3 <br />NA <br /><2.0 <br /><2.0 <br /><2.0 <br /><2.0 <br />NA <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />Cyanide, Total <br />NA <br />NA <br />NA <br />NA <br />NA <br /><0.0028 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />Sulfide <br />NA <br />NA <br />NA <br />NA <br />NA <br /><0.25 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />Total Organic Carbon <br />NA <br />NA <br />NA <br />NA <br />NA <br />1.6 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />Nitrate -Nitrite as Nitrogen <br />11 <br />10 <br />9.6 <br />10 <br />12 <br />11 <br />12 <br />11 <br />12 <br />11 <br />12 <br />11 <br />11 <br />11 <br />11 <br />11 <br />Sulfate <br />420 <br />380 <br />410 <br />470 <br />440 <br />440 <br />460 <br />490 <br />430 <br />450 <br />430 <br />440 <br />1 430 <br />420 <br />410 <br />420 <br />Calcium <br />NA <br />140 <br />NA <br />160 <br />NA <br />160 <br />NR <br />170 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />150 <br />Potassium <br />NA <br />4.9 <br />NA <br />6 <br />NA <br />5.8 <br />NR <br />6 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />5.5 <br />Magnesium <br />NA <br />55 <br />NA <br />60 <br />NA <br />61 <br />NR <br />62 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />57 <br />Sodium <br />N A <br />160 <br />NA <br />180 <br />NA <br />190 <br />NR <br />190 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />160 <br />Aluminum, Dissolved <br />NR <br />NR <br />NR <br />NR <br />NR <br /><38.0 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />Antimony, Dissolved <br />NR <br />NR <br />NR <br />NR <br />NR <br /><34.0 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />Arsenic, Dissolved <br />NR <br />NR <br />NR <br />NR <br />NR <br />1.8 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />Barium, Dissolved <br />NR <br />NR <br />NR <br />NR <br />NR <br />37 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />Beryllium, Dissolved <br />NR <br />NR <br />NR <br />NR <br />NR <br /><l.l <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />Boron, Dissolved <br />NR <br />NR <br />NR <br />NR <br />NR <br />NA <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />Cadmium, Dissolved <br />NR <br />NR <br />NR <br />NR <br />NR <br /><0.60 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />Chromium, Total Dissolved <br />NR <br />NR <br />NR <br />NR <br />NR <br />1.9 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />Chromium Hexavalent <br />NR <br />NR <br />NR <br />NR <br />NR <br />1.4 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />Cobalt, Dissolved <br />NR <br />NR <br />NR <br />NR <br />NR <br /><3.7 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />Copper, Dissolved <br />NR <br />NR <br />NR <br />NR <br />NR <br /><1.5 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />Iron, Dissolved <br />NR <br />NR <br />NR <br />NR <br />NR <br /><9.3 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />Lead, Dissolved <br />NR <br />NR <br />NR <br />NR <br />NR <br /><0.054 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />Manganese, Dissolved <br />NR <br />NR <br />NR <br />NR <br />NR <br /><0.11 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />Mercury, Dissolved <br />NR <br />NR <br />NR <br />NR <br />NR <br /><0.016 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />Nickel, Dissolved <br />NR <br />NR <br />NR <br />NR <br />NR <br />2.4 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />Selenium, Dissolved <br />NR <br />NR <br />NR <br />NR <br />NR <br />2.2 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />Silver, Dissolved <br />NR <br />NR <br />NR <br />NR <br />NR <br /><1.8 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />Thallium, Dissolved <br />NR <br />NR <br />NR <br />NR <br />NR <br /><21.0 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />Tin, Dissolved <br />NR <br />NR <br />NR <br />NR <br />NR <br />57 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />Vanadium, Dissolved <br />NR <br />NR <br />NR <br />NR <br />NR <br />4.5 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />Zinc, Dissolved <br />NR <br />NR <br />NR <br />NR <br />NR <br />5.4 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />Semivolatile Organic Compounds <br />bis(2-Ethylhexyl)phthalate <br />ND <br />I ND <br />I ND <br />ND <br />I ND <br />(2.5*) <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />All Compounds <br />NA <br />NA <br />NA <br />NA <br />NA <br />ND <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />Chlorinated Herbicides <br />All Compounds <br />Organo -Phosphorus Pesticide <br />NA <br />NA <br />NA <br />NA <br />NA <br />ND <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />All Compounds <br />NA <br />NA <br />NA <br />NA <br />NA <br />ND <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />Organochlorine Pesticides and Polychminated <br />Biphenyl's (PCBs) <br />All Compounds <br />L NA <br />I NA <br />I NA <br />NA <br />NA <br />ND <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR = Not Requested <br />ND = Not Detected <br />" = Trace concentration <br />(1] = This analytical result appears <br />to be anomalous and therefore was not used in the statistical evaluation procedures. <br />