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SEVERN TRENT LABORATORIES, INC <br /> PRELIMINARY DATA SUMMARY <br /> orer-ultp shownbelow-may still require additional-laboratory review and are subject to <br /> change Actions taken based on these results are the responsibility of the data user <br /> --------------------------------------------------------------------------------------------- <br /> IT Corporation PAGE 1 <br /> Lot # EUK170197 Concord, Southland (7-11) Date Reported 11/29/00 <br /> Project Number SOUTHLAND <br /> REPORTING ANALYTICAL <br /> PARAMETER RESULT LIMIT TWITS METHOD <br /> Client Sample ID SL/PERSHING/17334/NW-4 <br /> Sample # 001 Date Sampled 11/14/00 09 00 Date Received: 11/17/00 Matrix WATER <br /> Volatiles by GC Reviewed <br /> Benzene ND Q 50 ug/L SW846 8021E <br /> Toluene ND Q 50 ug/L SW846 80218 <br /> Ethylbenzene ND Q 50 ug/L SW846 80218 <br /> Xylenes (total) ND Q 150 ug/L SW846 8021B <br /> Q Elevated reporting limit The reporting limit is elevated due to high analyte levels. <br /> Volatile organics by GC/MS Reviewed <br /> Methyl tett-butyl ether 4700 50 ug/L SW846 8260E <br /> Tert-amyl methyl ether ND 100 ug/L SW846 82608 <br /> Tert-butyl ethyl ether ND 100 ug/L SW846 8260B <br /> t-Butanol ISD 2500 ug/L SW846 8260B <br /> Isopropyl ether ND 100 ug/L SW846 82608 <br /> Volatile Petroleum Hydrocarbons Reviewed <br /> Gasoline Range Organics (C6-Cl 1500 100 ilg/L SW846 8015B <br /> Unknn.n hyelrn nrhon pnttnrn_ <br /> Client Sample ID 5L/PER5HTNG/17334JMW-2 <br /> Sample # 002 Date Sampled 11/14/00 09 26 Date Received- 11/17/00 Matrix- WATER <br /> Volatiles by GC Reviewed <br /> Benzene 0 92 0 50 ug/L SW846 80218 <br /> Toluene ND 0 50 ug/L SW846 8021E <br /> Ethylbenzene ND 0 50 ug/L. SW846 B021B <br /> Xylenes (total) ND 1 5 ug/L SW846 80218 <br /> Volatile Organics by GC/MS Reviewed <br /> Methyl tort-butyl ether ND 1 0 ug/L SW846 82608 <br /> Tert-amyl methyl ether ND 2 0 ug/L SW846 8260B <br /> Tert-butyl ethyl ether ND 2 0 ug/L SW846 8260E <br /> t-Butanol ND 50 ug/L SW846 82608 <br /> Isopropyl ether ND 2 0 ug/L SW846 B260B <br /> (Continued on next page) <br /> 11/29/00 WED 18 19 CTX/RX NO 53161 Q002 <br />