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® ® ® ® ® ® M MWOwMMWMMWALjwknUMM <br />LEACHATE <br />FOOTHILL SANITARY LANDFILL <br />Units: mg/1, unless noted <br />Semple Designation L-1 L-1 L-1 <br />Sampling Date 3/7/05 3/28/06 1/31/07 <br />onitoring and Field Parameters <br />L=AMMMOM <br />temperature(°C) <br />NT <br />16.4 <br />11 <br />Chloride <br />168 <br />251 <br />300 <br />Nitrate Nitrogen <br /><0,4 <br />0.06* <br />0.3 <br />Total Dissolved Solids <br />3,650 <br />2,280 <br />1,900 <br />Sulfate <br />11 <br /><0.2 <br />0.3* <br />pH (std. units) <br />6.12 <br />6.81 <br />6.35 <br />Electrical Conductivity (umhos/cm) <br />3,470 <br />280 <br />3,070 <br />Turbidity (NTU) field <br />NT <br />NT <br />13.7 <br />Calcium, Dissolved <br />455 <br />398 <br />270 <br />Magnesium, Dissolved <br />201 <br />302 <br />160 <br />Potassium, Dissolved <br />Sodium, Dissolved <br />13 <br />146 <br />10 <br />193 <br />9.1 <br />190 <br />Volatile Q=ic Co po n,ds LwAll <br />u.wuutvvuuine <br />I,1-Dichloroethane <br />16 <br />9 <br /><U. 14 <br />2.7 <br /><U.14 <br />10 <br />1,1-Dichloroethene <br /><0.19 <br />OM <br />63 <br />1,2,4-Trimethylbenzene <br /><0.13 <br />0.43* <br /><0.36 <br />1,2-Dichioroethene <br /><0.18 <br />2.4 <br />7.9 <br />1,2-DichloroProPane <br /><0.17 <br />0.66 <br /><0.4 <br />1,3,5-Trimethylbenzene <br /><0.15 <br />0.19" <br /><0.4 <br />2-butanone <br />4100 <br />480 <br /><1.7 <br />4-Isopropyltoluene <br /><0.1 <br />2.4 <br /><0.34 <br />4-methyl-2pentanone <br />30 <br />20 <br /><1.5 <br />Acetone <br />1400 <br />300 <br />22* <br />Chloroethane <br /><0.2 <br />23 <br />15 <br />Chloromethane <br /><0.23 <br />2.1 <br /><0.4 <br />Chloroform <br />3 <br /><0.14 <br /><0.4 <br />cis-1,2-Dichloroethane <br /><0.17 <br />8.1 <br />4.2 <br />Ethly text -butyl ether (ETBE) <br />3 <br />NT <br />NT <br />Ethylbenzene <br />2 <br />4.7 <br /><0.41 <br />Isopropyltoluene <br />O.51* <br />NT <br />Methly tert-butyl ether <br />10 <br />490 <br />100 <br />Methylene Chloride <br />150 <br />7.5 <br />7.6* <br />n-Propylbenzene <br /><0.13 <br />0.16* <br /><0.37 <br />Twachloroethene (PCE) <br />4 <br />0.34* <br /><0.38 <br />Toluene <br />38 <br />71 <br />1.9* <br />a-nypenes 1z 13 <1.1 <br />Trichloroethene 6 13 1.9* <br />Vinyl Chloride <0,5 99 220 <br />NR = Not Required <br />NT = Not Tested <br />ND = Not Detected <br />* = Trace Concentration <br />n\consuhingldatM$hare4rojects\xls4nr\79\791289\FHO 11207gl <br />