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Table 1. Comparison of EPA 8020 and EPA 8240 MTBE Analytical Results <br /> TOTAL NUMBER O NUMBER OF 7020. 5020< talo• <br /> SAMPLES (8020 Z SAMPLE3 WITH APD• 6240 6240 Paaltive <br /> 6240 VALUES >20 > 40%D <br /> A S T JU [191CI JA IS T U total <br /> MTBE 9 7 9 1 0 25 1 3 2 0 6 1 5 p <br /> low (20. 170 <br /> STEX ppb) <br /> (NO-73 5 6 7 S —23 1 2 1 3 7 3 4 p <br /> ppb)or 8 MTBE <br /> (NC-7) (200++) <br /> 4 2 2 0 7 1 2 0 0 7 J 0 p <br /> MTBE <br /> high (2,0- 170 <br /> BTEXh) <br /> (150++ 17 T5 <br /> 13 2 1 42 10 6 1 1 1 8 6 1 0 2 <br /> pbb)or 8 MTBE <br /> 4$ <br /> RPD=diference between Ooncanvimons reported by EPA 8020and 8240;dvided by Vie average Of EPA 802cand 824() <br /> cancxitrationa: =tdPJ(ed by 100. <br /> A.ARCD _ <br /> S.Shop <br /> T=Texaco <br /> U-Lhncal <br />