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Historical for Addresses with VOC' s detected: <br /> 11338 Harlan <br /> 92-2nd Qtr 92-1st Qtr 91-4th Qtr 91-3rd Qtr <br /> Trichloroethene 0.23 (1) NO NO NO <br /> 11616 Harlan (8) <br /> Trichloroethene 0.42 (2) NS NS NO <br /> 1,2 Dichloropropane 1.64 (2) NS NS NO <br /> 342 Roth <br /> Trichloroethene 1.05 (3) 1.14 NO NO <br /> 427 Roth <br /> Tetrachloroethene 0.57 (4) 1.28 NO 0.5 <br /> 707 Roth <br /> 1 ,2 Dichloroethane 5.30 (5) NO NO NO <br /> Lathrop WDP N5 <br /> Trichloroethene 0.42 (6) NS(7) NS(7) ND <br /> NOTES <br /> (1) First time TCE detected. <br /> (2) First time TCE detected , 1 ,2 DCP previously detected 1st QTR 1990. <br /> (3) 2nd Consecutive Qtr with TCE. <br /> (4) History prior to 3rd Qtr/1991 : 2nd Qtr 91 = NO, 1st Qtr 91 = 2.0 ug/L, <br /> 4th Qtr 90 = 1.0 ug/L, 3rd Qtr 90 = NO, 2nd Qtr 90 = 1.0, 1st Qtr 90 = <br /> 2.0. <br /> (5) History prior to 3rd Qtr/1991 : 2nd Qtr 91 = NO, 1st Qtr 91 = 4.0 ug/L, <br /> 4th Qtr 90 = NO, 3rd Qtr 90 = 3.0 ug/L, 2nd Qtr 90 = 3.0 ug/L, <br /> 1st Qtr 90 = 3.0 ug/L. <br /> (6) First time TCE detected. <br /> (7) Not in Service. <br /> (8) Empty home (locked) , well not in use. <br /> c. GROUNDWATER TREATMENT AND RECEIVING WATER ANALYTICAL RESULTS. <br /> Summary and discussion of results are included in Sharpe' s <br /> Monthly National Pollution Discharge Elimination System (NPDES) Permit <br /> CA 0081931 Report. All parties to the Federal Facility Agreement are <br /> furnished a copy of this report. <br /> d. SAMPLING AND ANALYSIS CONTRACT <br /> Sampling and analysis contract was awarded October 1 , 1991 , to <br /> Quality Assurance Laboratory (QAL) of San Diego, California. <br />