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Su�--�erior Precisior� Analytical, Inc. J U L 10 19 2 <br /> 0 35~^� Dave Su,(e 106 • Martinez Caiifornii 9-,553 • 151 ui 2-'L= 0166 / fax (510) 219 �y � <br /> Project 31-0308 <br /> Alton Geoscience Reported 07/08/92 <br /> Attn: TODD PEARSON <br /> TOTAL PETROLEUM HYDROCARBONS <br /> Lab # Sample Identification Sampled Analyzed Matrix <br /> 86114- 1 tb-lb 06/29/92 07/06/92 Water <br /> 86114- 2 RIN 06/29/92 07/06/92 Water <br /> 86114- 3 MW-7 06/29/92 07/06/92 Water <br /> 86114- 4 MW-6 06/29/92 07/06/92 Water <br /> 86114- 5 MW-3 06/29/92 07/07/92 Water <br /> 86114- 6 MW-4 06/29/92 07/06/92 Water <br /> 86114- 7 MW-5 06/29/92 07/06/92 Water <br /> 86114- 8 MW-1 06/29/92 07/07/92 Water <br /> 86114- 9 MW-2 06/29/92 07/07/92 Water <br /> RESULTS OF ANALYSIS <br /> Laboratory Number: 86114- 1 86114- 2 86114- 3 86114- 4 86114- 5 <br /> • Gasolrne•• ND< 50 ND<50 ND<50 750 ND<50 <br /> Benzene: ND<0 . 5 ND<0 . 5 ND<0 . 5 4 . 0 <br /> Toluene: ND<0 . 5 ND<0. 5 ND<0 . 5 3 .0 ND<0 .5 <br /> Ethyl Benzene: ND<0 .5 ND<0. 5 ND<0 . 5 49 <br /> ND<0 .5 ND<0.5 ND<0 . 5 ND<0 . 5 ND<0 .5 <br /> Xylenes : <br /> u <br /> Concentration: ug/L /L g u g/L ug/L ug/L <br /> Laboratory Number: 86114- 6 86114- 7 86114- 8 86114- 9 <br /> Gasoline: 130 850 7700 20000 <br /> Benzene: 2 .9 18 3000 2800 <br /> 0 . 6 9 .0 33 97 <br /> Toluene: 25 600 2200 <br /> Ethyl Benzene: 0 .9 <br /> Xylenes : 1 . 1 200 230 1700 <br /> Concentration: ug/L ug/L ug/L ug/L <br /> • <br /> Page 1 of 2 <br />