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HISTORICAL SUMMARY OF ANALYTICA <br />GROUNDWATER <br />NORTH COUNTY SANITARY LANDFILL <br />G-2/G-2A <br />Units: mg/l, unless noted <br />Sample Designation <br />Sampling Date <br />G-2 <br />10/5/93 <br />G-2 <br />1/4/94 <br />G-2 <br />4/8/94 <br />G-2 <br />7/1/94 <br />G-2 <br />12/1/94 <br />G-2 <br />1/3/95 <br />G-2 <br />4/3/95 <br />G-2 <br />7/7/95 <br />G-2 <br />10/2/95 <br />G-2 <br />1/2/96 <br />G-2 <br />4/5/96 <br />G-2 <br />7/10/96 <br />G-2A <br />1/28/14 <br />Monitoring and Field Parameters <br />NR <br />NR <br />NR <br />NR <br /><0.4 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />Vinyl Chloride <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br /><0.4 <br /><0.4 <br /><0.4 <br /><0.12 <br />Total Xylenes <br /><5 <br />NR <br />NR <br />NR <br /><1.4 <br /><1.4 <br /><1.4 <br /><0.4 <br /><0.4 <br /><0.4 <br /><0.4 <br /><0.4 <br /><0.36 <br />Acetone <br /><20 <br />NR <br />NR <br />NR <br /><4.4 <br /><4.4 <br /><4.4 <br /><2 <br /><2 <br /><2 <br /><2 <br /><2 <br /><4.6 <br />Acrylonitrile <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br /><2 <br /><2 <br /><2 <br /><1.2 <br />Carbon Disulfide <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br /><0.4 <br /><0.4 <br /><0.4 <br /><0.38 <br />trans-l,4-dichloro-2-butene <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br /><3 <br /><3 <br /><3 <br /><1.4 <br />2-hexanone <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br /><0.5 <br /><0.5 <br /><0.5 <br /><3.4 <br />Methyl ethyl ketone (MEK) <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br /><2 <br /><2 <br /><2 <br /><2.5 <br />Methyl Iodide <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br /><0.2 <br /><0.2 <br /><0.2 <br /><0.47 <br />Methyl isobutyl ketone <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br /><3 <br /><3 <br /><3 <br /><2.1 <br />vinyl acetate <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br /><3 <br /><3 <br /><3 <br /><1.8 <br />Acrolein <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br /><4 <br /><4 <br /><4 <br />NT <br />Acetonitrile <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />Allyl chloride <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />2-chloroethyl vinyl ether <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />Chloroprene <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />Isobutanol <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />Methacrylonitrile <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />Methyl methacrylate <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />Propionitrile <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />m/p Xylene <br /><2 <br />NR <br />NR <br />NR <br /><0.47 <br /><0.47 <br /><0.47 <br /><0.1 <br /><0.1 <br /><0.1 <br /><0.1 <br /><0.1 <br />NT <br />o-Xylene <br /><3 <br />NR <br />NR <br />NR <br /><0.47 <br /><0.47 <br /><0.47 <br /><0.1 <br /><0.1 <br /><0.1 <br /><0.1 <br /><0.1 <br />NT <br />Constituents of Concern <br />Organic Carbon <br /><0.5 <br /><0.5 <br /><0.5 <br /><0.5 <br />1.5 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />_Total <br />Alkalinity, Bicarbonate <br />89 <br />87 <br />75 <br />88 <br />88 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />120 <br />Alkalinity, Carbonate <br /><5 <br /><5 <br /><5 <br /><5 <br /><2 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />Total Alkalinity <br />89 <br />87 <br />75 <br />88 <br />88 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />100 <br />Cyanide <br />NR <br />NR <br />NR <br />NR <br /><0.003 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />Sulfide <br /><0.1 <br /><0.1 <br /><0.1 <br /><0.1 <br /><2 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />Semivolatile Organic Compounds (ugM <br />Bis(2-ethylhexyl) Phthalate <br />NR <br />NR <br />NR <br />NR <br />23 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />4-Methy4phenol <br />NR <br />NR <br />NR <br />NR <br /><0.4 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />2-Methylphenol <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />3 and 4-Methylphenol <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />Diethyl Phthalate <br />NR <br />NR <br />NR <br />NR <br /><10 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />1,4 -Dichlorobenzene <br />NR <br />NR <br />NR <br />NR <br /><11 <br />NR <br />NR <br />NR <br />NR <br /><2.2 <br />NR <br />NR <br />NR <br />Isophrone <br />NR <br />NR <br />NR <br />NR <br /><12 <br />NR <br />NR <br />NR <br />NR <br /><2.2 <br />NR <br />NR <br />NR <br />Phenol <br />NR <br />NR <br />NR <br />NR <br /><13 <br />NR <br />NR <br />NR <br />NR <br /><2.6 <br />NR <br />NR <br />NR <br />