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HISTORICAL SUMMARY OF ANALYTICAL RESULTS <br /> GROUNDWATER <br /> FOOTHILL SANITARY LANDFILL <br /> MW-1 <br /> Units:mg/l,unless noted <br /> Sample Designation <br /> Sampling Date 7/10/89 10/20/89 1/18/90 4/5/90 7/12/90 10/2/90 1/14/91 4/3/91 7/18/91 10/10/91 1/10/92 4/3/92 7/1/92 10/2/92 1/5/93 7/1/93 10/4/93 <br /> Monitoring and Field Parameters <br /> eneral Water Qaft Parameters <br /> emperature(-G)(held) NR NR NR NR NR NR NR NR NR NR NR NR NR NR NR NR w <br /> Chloride 11 9.2 6 6.9 6.5 5.7 6.4 6.8 6.7 6.4 NR 13 6 6 6 6 5 <br /> %trate- itrogen 0. 2.5 2.5 2.5 2.5 2.6 NR NR NR 2.4 3.4 2.4 .5 2.5 2.3 2.4 <br /> TO0 TDIssoTdve Solis 15 184 185 [93 181 131 165 197 191 240 180 2 1 22 200 200 <br /> �u ate7 7.2 7.3 7 6.7 6.3 6.7 6.5 6.6 6.8 <8 <8 7�7 7 6 <br /> (std.units %e 8.00 NR NR NR NR NR NR NR NR NR 7.56 7.35 7.506 9.02 7.46 6. <br /> ectrica on uctiv umhos/cm 291 NR N NR NR NR 244 7 300 01 248 <br /> urb N %e R NR N NR NR NR R <br /> a c%um <br /> Potassium <br /> Magnesium <br /> odium <br /> Volatile Organic Compounds(ugR) <br /> Trichloroethene(T <br /> 1,1-O%c oroet ene <br /> loro orm <br /> Benzene <br /> m/p- ylene <br /> Chlorobenzene <br /> Methy eneChloride <br /> Acetone <br /> aptha ene <br /> Methyl ter-butt' ether <br /> -1 o uene <br /> 1,4-Dichlorobenzene <br /> etrach oroethene <br /> - utanone <br /> - %c loropropane <br /> Gh oromethane <br /> - nmet y enzene <br /> 5- nmethy enzene <br /> Constituents of Concern Parameters <br /> Semivolatile Organic Compounds <br /> (EPA Method 3520/8270) <br /> II Compounds NR NR NR NR NR NR NR NR NR NR NR NR NR N w <br /> Organochlorine Pesticides and Polychlorinated Biphenvl's <br /> (EPA Method 351.0_/_8080) <br /> All Compounds NR NR NR NR NR NR NR NR NR NR NR NR NR NR NR NR N <br /> Trace Concentration <br /> [1]This analytical result appears to be anomalous and therefore was not used in statistical evaluation procedures. <br /> {1)Parameter also detected in one or more quality control blanks <br /> ND=Not Detected <br /> NM=Not Measured <br /> NR=Not Required <br /> MW-1;Printed:1/30/2004 1 of 28 <br />