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TABLE 1 -SUMMARY OF RESULTS OF GROUNDWATER MONITORING <br /> WELL DATE OF CASING DEPTH TO GROUNDWATER TPH-D TPH-G B T E X MTBE MTBE LAB <br /> ID SAMPLING/ ELEVATION (a) WATER ELEVATION (uglL) (uglL) (uglL) (uglL) (ug/L) (ug/L) by 8020 by 8260 <br /> MONITORING (Feet) (Feet) (Feet) (ug/L) (ug/L) <br /> TB 05/25/01 — — --- — ND<50 ND<O 5 ND<O 5 ND<O 5 ND<O 5 ND<2 5 --- SEQ <br /> TB 07/31/01 -- - — --- ND<50 ND<O 5 ND<0 5 ND<O 5 ND<O 5 ND<2 5 — SEQ <br /> TB 10/30/01 — --- — ---- ND<50 ND<O 5 ND<O 5 ND<O 5 ND<1 5 ND<2 5 --- LAN <br /> TB 01/28/02 — — — --- ND<50 ND<O 5 ND<O 5 ND<O 5 ND<1 5 ND<2 5 --- LAN <br /> TB 04130/02 --- — --- — ND<50 ND<O 5 ND<O 5 ND<O 5 ND<1 5 ND<2 5 — LAN <br /> ABBREVIATIONS <br /> TPH-D Total petroleum hydrocarbons as diesel <br /> TPH-G Total petroleum hydrocarbons as gasoline <br /> B Benzene <br /> T Toluene <br /> E Ethylbenzene <br /> X Total xylenes <br /> MTBE Methyl tert butyl ether <br /> uglL Micrograms per liter <br /> --- Not analyzedlapplicablelmeasurable <br /> ND Not detected above reported detection limit <br /> SEQ Sequoia Analytical <br /> n1n MTBE by 8020/8260 <br /> DIPE DE-Isopropyl Ether <br /> ETBE Ethyl t-Butyl Ether <br /> TAME t Amyl Methyl Ether <br /> TBA t-Butyl Alcohol or 2-Methyl-2-propanol <br /> LAN Lancaster Laboratories <br /> NOTES <br /> (a) Casing elevation is measured in feet above mean sea level <br /> (b) This sample was analyzed outside of EPA recommended holding time <br /> Site surveyed on March 19,2002,by Marrow Surveying of West Sacramento,CA <br /> Cooperative data provided to Blaine Tech Services by Gettler Ryan beginning May 23,2001 " <br /> Blame T2ervices,Inc,Report,020430-EB-1,Cooperative data for Chevron Station 9-863275 Grant Line Rd,Tracy,California age 2 <br />