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Table 2 (Cont. ) <br /> Western Stone Products-Tracy <br /> Summary of Laboratory Analysis-Water <br /> Results in ppb <br /> Date Sample TD B T EB X TPHD <br /> ----------------------------------------------------------------- <br /> 01/07/92 WSPTR MW-1 ND ND ND ND ND <br /> WSPTR MW-2 ND ND ND ND ND <br /> MWPTR MW-3 ND ND ND ND ND <br /> WSPTR MW-4 ND ND ND ND ND <br /> WSPTR MW-4D ND ND 1. 0 ND ND <br /> WSPTR MW-1D ND ND ND ND ND <br /> 04/07/92 WSPTR MW-1 ND ND ND ND ND <br /> WSPTR MW-2 ND ND ND ND ND <br /> WSPTR MW-3 ND ND ND ND ND <br /> WSPTR MW-4 ND ND ND ND ND <br /> Detection Limit: 0. 50 0. 50 0. 50 0. 50 100 <br /> 07/27/92 WSPTR MW-3 ND 0. 55 ND ND ND <br /> WSPTR MW-4 ND 0. 60 1. 2 0 . 57 ND <br /> Detection Limit: 0. 50 0. 50 0. 50 0. 50 50 <br /> MCL 1 40* 30* 20* NE <br /> Note: ppb = Parts Per Billion <br /> B = Benzene <br /> T = Toluene <br /> EB = Ethylbenzene <br /> X = Xylenes <br /> BTEX = analyzed by EPA method 8020. <br /> TPHD = Total Petroleum Hydrocarbons as Diesel analyzed by <br /> EPA method 3510/8015. <br /> ND = None Detected at or above method detection limits. <br /> MCL = Maximum Contaminant Levels, State of California <br /> Drinking Water Standards <br /> NE = Not Established <br /> * = Proposed Secondary MCL <br /> WSTTABL,WS <br />