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a. . <br /> i <br /> (C) 1990 BIO NATIONAL CORPORATION <br /> 5.3 TREATMENT OF EXTRACTED GROUNDWATER PRIOR TO SEWERING OR <br /> RECYCLING <br /> Summary of Certified Laboratory Analysis of Water Samples drawn on <br /> February 18, 1990 <br /> BEFORE ' AFTER AFTER <br /> ADVO%8 ADVOX9 GACio <br /> DETECTED CONTAMINANT ugm/L ugm/L ugm/L <br /> (EPA 5030/8010) <br /> Chloromethane '7 1.1 ND <br /> Methylene Chloride ND 7.5 ND <br /> 1,1-Dichloroethane 46 2 14 ND <br /> trans-1,2-Dichloroethylene 54 z 8.6 ND <br /> 1,2-Dichloroethane 33 Nb 21 ND <br /> 1,1,1-Trichloroethane ND 19 13 ND <br /> Trichloroethlyene ' 31 z co 9.7 ND <br /> Tetrachloroethylene 67 cis 25 ND <br /> (EPA 5030/8020) <br /> j Benzene 2,000 230 ND <br /> Toluene 260 ,--70 1.8 ND <br /> Ethylbenzene 11 Nn 7.5 ND <br /> p-Xylene 140;1: "�o 6.3 ND <br /> m-Xylene 39 6.7 ND <br /> o-Xylene 2801 48 ND <br /> Isopropylbenzene ND 'l Na 32 ND <br /> TPH (Gasoline) 12,000 z=, a 2,300 ND <br /> , <br /> ADVOX <br /> unit removed serviced and tested after sampling <br /> _ <br /> � 8 ADVOX - Advanced Oxidation Unit (Ozone/UV) - Before As Extracted" from <br /> MW-1 before transfer into holding tank. " <br /> 9 After ADVOX treatment, sampled before Granular Activated Carbon Adsorption <br /> procedure. The GAC filter is both an adsorber,'and a high surface area for <br /> 3. completion of the ADVOX procedure. <br /> i N/A = No test sample drawn <br /> 10 The GAC phase of treatment is believed to combine the large carbon surface <br /> area to finish the ADVOX cycle, augmenting its standard adsorption role. <br /> Ozonated fluids will prevent micro=organisms from fouling the GAC .to give it <br /> longer usable life. <br /> 7 HOLT103 <br />