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HISTORICAL SUMMARY OF ANALYTICAL RESULTS <br /> GROUNDWATER <br /> FOOTHILL SANITARY LANDFILL <br /> MW-1 <br /> Units:m /1,unless noted _ _ - - - - - <br /> 1 MW-1 <br /> amp a esigna ion <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 1/5/93 711/93 10 <br /> Monitoring and Field Parameters <br /> General Water Quality Parameters <br /> Tem erature °C Reid -- NR- _-__NR NR--- NR --NR--- <br /> - <br /> NR-__.-NR <br /> hlon a 11 9.2 6 6.9 6.5 6.7 6.4 6.8 6.7 6.4 NR 13-� 6 6 6 6 5 <br /> drate-Ndr, ogen [0.67 2.5 2.5 2.5 2.5 2.6 NR NR NR NR 2.4 3.4 2.4 2.5 2.5 2.3 2.4 <br /> -Total Dissolved Solids 15.1 184 177 185_-[93], 181 131 165 197 191 2<8 188 210 180 220 206 206 <br /> 6�fate _ ___ 7 7.2 7.3 7 _6.7 6.3 6.7 _ 6 5 6 6 __6.8 <br /> -pp'H std.units ffeTd 8.00_NR-_ _NR NR_ NR NR NR NR NR NR 7 56 7 35 7 50-7 05 6.02 7.46 6.79 <br /> --Elecfrical Cond ctiv�it umbos/cm 295 NR NR NR NR NR--27j------244----'---248---307_ _ 300 301 248 <br /> Turbidit NTU ifeld NR NR NR NR NR NR NR NR NR� NR NR NR NR -NR NR NR-NR <br /> Caicwm <br /> Potassium <br /> Ma neswm <br /> odium - <br /> Volatile Organic Compounds(Ug/1) <br /> Tnchioroethene ITGE <br /> 1,1-Dichloroethene <br /> Chloro orm <br /> Benzene <br /> m/ X lene <br /> Chlorobenzene <br /> Meth ene Ch on e <br /> Acetone <br /> a thalene <br /> Meth iter-bu I ether <br /> Toluene <br /> 1,4-Dich oro enzene <br /> Tetrachloroethene <br /> 2-Butanone <br /> 1,3-Dichloro ro ane <br /> hloromethane <br /> 1,2,4- nme4 Ibenzene <br /> 1,3,5-Tnmeth Ibenzene <br /> Constituents of Concern Parameters <br /> Semivolatile Organic Compounds <br /> (EPA Method 3520/8270 - <br /> (EP ompounds NR NR NR R NR NR NR NR NR NR NR NR NR--ISR N NR NR <br /> -- --- <br /> Organochlorine Pesticides and Polvchlorinated Biphenvl's <br /> EPA Method 3510/8080) <br /> A ompoun s NR NR NR __NR _ NR _ NR _NR NR __NR NR NR NR NR NR NR NR NR <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 /> 1 of 2E <br />