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Z <br /> (C) 1990 BIO NATIONAL CORPORATION <br /> 5.5 TREATMENT OF EXTRACTED GROUNDWATER PRIOR TO SEWERING OR <br /> RECYCLING <br /> S1Summary of Certified Laboratory Analysis of Water Samples drawn on April, <br />' 24 1990 " <br /> i BEFOREAFTER AFTER <br /> ADVOX14 ADVOXI5 GAC16 <br /> DETECTED CONTAMINANT ugm/L ugm/L ugm/L <br /> (EPA 5030/8010) . - o✓ <br /> Vinyl Chloride 1.981: N�v ND ND <br /> Chloromethane ND " N 0 ND ND <br /> Methylene Chloride ND 'w ND ND <br /> loll Trichlorofluoromethane ND t\su ND ND <br /> 1,1-Dichloroethylene 2.77 ND ND <br /> 1,1-Dichloroethane 14.8'i ? ND ND <br /> trans-1,2-Dichloroethylene 20.8''i do ND ND <br /> Chloroform ND :. 1A ND ND <br /> 1,2-Dichloroethane 4.88', ND ND <br /> 1,1,1-Trichloroethane 7.14 iq ND ND <br /> Trichloroethlyene 14.0 ND ND <br /> Tetrachloroethylene 11.2 ND ____ND <br /> 2-Chlorotoluene 5.41', NA ND ND <br /> 1,3-Dichlorobenzene 4.85 ND ND <br /> 1,4-Dichlorobenzene 37.71 ND ND <br /> i 1,2-Dichlorobenzene 17.4 ND ND <br /> (EPA 5030/8020) <br /> Benzene 229 : 3 ND ND <br /> Toluene . 13.7: z o ND ND <br /> Ethylbenzene ND ND ND <br /> p-Xylene ao ND ND <br /> m-Xylene 57.1T ND ND <br /> o-Xylene (oho ND ND <br /> Isopropylbenzene ND ND ND <br /> TPH (Gasoline) <br />�II <br /> 14 ADVOX - Advanced Oxidation Unit (Ozone/UV) Before = "As Extracted" <br /> W! from MW-1 before transfer into holding tank. <br /> 15 After ADVOX treatment, "sampled before Granular Activated Carbon <br /> Adsorption procedure. The GAC filter is both an! adsorber, and a high surface <br /> h area for. completion of the ADVOX procedure. <br /> NOTE: Based on prior readings after ADVOX, some residual should show - low <br /> ll confidence level on this sample. <br /> 16 The GAC phase of treatment is believed to combine the large carbon surface <br /> i) area to finish the ADVOX cycle, augmenting its standard adsorption role. <br /> lo <br /> Ozonated fluids will prevent micro-organisms from fouling .the GAC to give it <br /> longer usable life. <br /> loll <br /> l; <br /> 9. HOLT103 <br />