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® M M® r it w r M rr M M M® M M M w M <br />HISTORICAL SUMMARY OF ANALYTICAL RESULTS <br />GROUNDWATER <br />FOOTHILL SANITARY LANDFILL <br />MW -5 <br />Units: mg/l, unless noted <br />Sample Designation MW -5 MW -5 <br />MW -5 <br />MW -5 <br />MW -5 <br />MW -5 <br />MW -5 <br />MW -5 <br />MW -5 <br />MW -5 <br />MW -5 <br />MW -5 <br />MW -5 <br />MW -5 <br />MW -5 <br />Sampling Date 7/23/07 4/1/08 <br />7/30/08 <br />1/15/09 <br />8/17/09 <br />10/7/09 <br />2/3/10 <br />9/2/10 <br />1/26/11 <br />8/10/11 <br />1/12/12 <br />7/25/12 <br />2/4/13 <br />8/1/13 <br />1/20/14 <br />Constituents of Concern Parameters <br />Semivolatile Organic Compounds (EPA Method 3520/8270) <br />Di -n -butyl Phthalate {0.0037*) NA <br />NA <br />NA <br /><0.00039 <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />All Compounds NA NA <br />NA <br />NA <br />ND <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />Oraanochlorine Pesticides and Polychlorinated Biphenvl's <br />(EPA Method 3510/8080) <br />All Compounds NA NA <br />NA <br />NA <br />ND <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />Organophosphate Pesticides <br />(EPA Method 8141A) <br />Azinphos methyl (Guthion) <0.12 0.14* <br />NA <br />NA <br />NA <br />ND <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />Fensulfothion 0.00033* <0.00009 <br />NA <br />NA <br />NA <br />ND <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />All Compounds NA NA <br />NA <br />NA <br />ND <br />ND <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />* = NA Concentration <br />[ I ] This analytical result appears to be anomalous and 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 />Constituents of Concern Parameters <br />Chlorinated Herbicides <br />(EPA Method 8151 A) <br />All Compounds NA NA NA NA ND NA NA NA NA NA NA NA NA NA NA <br />Chlorophenoxv Herbicides <br />(EPA Method 8150A Modified) <br />All Compounds NA NA NA NA ND NA NA NA NA NA NA NA NA NA NA <br />