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Table 7 <br /> FIELD BLANK DATA <br /> Volatile Organic Compoundl (VOC) Concentration <br /> Sample Sample (Dpb)2 <br /> Number Date VC BENZ EDB -DCA MECL PCE CCL4 TCA TCE CHCL3 <br /> AA-5 02/17/88 ND3 0.6 ND NO NO NO NO NO NO 0. 1 <br /> AA-10 03/02/88 NO 0.5 NO ND 1.4 NO NO 0.09 NO 0. 1 <br /> AA-15 03/03/88 NO 0.9 NO NO 2.7 NO ND 0.5 NO 0.2 <br /> W-6 02/17/88 ND 0.6 NO NO NO ND ND NO 0.2 NO <br /> W-7 04/07/88 NO NO ND NO NO NO NO NO NO NO <br /> TB-1 05/25/88 NO NO ND NO 11 NO NO 0.8 NO NO <br /> Regulatory <br /> Detection Limits 2 2 0.5 0.2 1 0.2 0.2 0.5 0.6 0.8 <br /> Laboratory <br /> Detection Limit 0.2 0.09 0.06 0.1 1.0 0.1 0.07 0.08 0.09 0.09 <br /> 1. VC - vinyl chloride PCE - tetrachloroethylene <br /> BENZ - benzene CCL4 - carbon tetrachloride <br /> EDB - ethylene dibromide TCA - 1 , 1,1-trichloroethane <br /> DCA - 1,2-dichloroethane TCE - trichloroethylene <br /> MECL - methylene chloride CHCL3 - chloroform <br /> 2. ppb - parts per billion <br /> 3. NO - not detected <br /> PJ9 9390304.00D 5-4 Rev. 0 09/20/88 <br />