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Table 2 <br /> GROUND WATER ELVATIONS AND SAMPLE ANALYTICAL RESULTS <br /> Rutz Grocery Store <br /> 4491 West Durham Ferry Road <br /> Tracy California <br /> Sample Collection TOC DTW GWE SPH TPHg B T E X MTBE <br /> No Date (feet) (feet) (feet) (feet) (ugfL) (ug/L) (ug/I-) (ug/L) (ug(L) (4") <br /> RW-1 10/19195 -- 1505 — 000 18000 2000 1 500 370 1 500 1 400 <br /> 12/19/95 -- 1646 -- _— __ __ — _ — <br /> 12/20/95(3) --- — --- 000 220 12 23 <0 5 23 410 <br /> 1/5196(l) --- 1679 -- --- — --- --- — — <br /> 7/2/96 --- 1530 --- __ — __ ___ --- <br /> 10118/96 — 1531 -- <br /> 8/20/98 9907 — - --- - -- --- — --- <br /> 1112/99 --- _- --- — — — --- — --- — <br /> Domestic 9/4191 — -- --- 000 <SQ <0 5 <0 5 <0 5 <0 5 --- <br /> Well 1/7/93 - -- 000 <.50 <0 5 <0 5 <0 5 <0 5 -- <br /> 4/7/93 - --- -- 000 <50 <0 5 <0 5 <0 5 <0 5 -- <br /> 1/5/1996(1) — --- --- 000 <50 <0 5 <0 5 <0 5 <0 5 <5 0 <br /> 7/2/96 -- — -- 000 <50 <0 5 <0 5 <0 5 <0 5 <5 0 <br /> 10/18/96 --- --- --- 000 <50 <0 5 <0 5 <0 5 <2 0 <5 0 <br /> 1/22/97 -- — — 000 <50 <0 5 <0 5 <0 5 <2 0 <5 0 <br /> 4/23/97 — 000 <50 <0 5 <0 5 <0 5 <2 0 <5 0 <br /> 7/24197 -- -- -- 000 <50 <0 5 <0 5 <0 5 <2 0 <5 0 <br /> 11/14/97 --- --- -- 000 <50 1 2 10 07 <20 <5 0 <br /> 1122/98 — — — 000 <100 <0 5 <0 5 <0 5 <1 5 <5 0 <br /> 5/12198 -- -- - 000 <50 <0 5 <0 5 <0 5 <0 5 <5 0(5) <br /> 8120198 -- -- --- 000 <50 <0 5 <0 5 <0 5 <0 5 0 0(5) <br /> 11/4/98 -- -- — 000 <50 <0 5 <0 5 <0 5 <0 5 <5 0(5) <br /> 3/3/99 — — — 000 <50 <0 5 <0 5 <0 5 15 <5 0 <br /> 5/13/99 — — - 000 <50 <0 5 <0 5 <0 5 <0 5 <5 0 <br /> 8/13/99 --- <br /> /13/99 == _ 000 <50 <0:5 <0 5 <0 5 <0 5 <5 0 <br /> 111J99 000 <50 <05 <05 <05 <05 <50 <br /> HP-1 10/20/93 -- --- — 000 <50 <0 3 <0 3 <0 3 <0 3 --- <br /> HP-2 10/20/93 — — — 000 <50 <0 3 <0 3 <0 3 <0 3 -- <br /> HP-3 10/20/93 — — -- 000 <50 <0 3 <0 3 <0 3 <0 3 <br /> HP-4 10/20/93 — — — 000 <50 <0 3 <0 3 <0 3 <0 3 — <br /> HP-5 10/20/93 — — -- 000 <50 <0 3 <0 3 <0 3 <0 3 -- <br /> HP-6 10/20/93 -- --- --- 000 <30 <0 3 <0 3 <0 3 <0 3 — <br /> Notes. Top of casing referenced to mean sea level <br /> TOC Depth to water <br /> DTW Ground water elevation(corrected for presence of SPH if applicable) <br /> GWE Separate-phase hydrocarbons <br /> SPH Total petroleum hydrocarbons as gasoline by EPA Method 8015(CA I=modified) <br /> TPHg Benzene,toluene ethylbenzene and total xylenes by EPA Method 8020(CA LUFT modified) <br /> BTEX Methyl ternary butyl ether by EPA Method 8020 through 1122!98,EPA Method 8260 thereafter <br /> MTBE Not detected to concentrations exceeding the indicated method detection limit <br /> <50 Not tested/measured <br /> Micrograms per liter <br /> lig/L Samples unpreserved and 7 day holding period exceeded,samples analyzed 13 days after collection <br /> (1) MTBE by EPA Method 8260=1,300 gg(L <br /> (2) Water sample collected from RW-I after approximately 18 hours of pumping at 5 gpm <br /> (3) In addition to MTBE 39µg/L of tert-Butanol was detected by Method 8260 <br /> (4) All other fuel oxygenates were not present in concentranons exceeding method detection limits the sample <br /> (5) Additional fuel oxygenates(ETRE,THA,DIPE.TAME)were not detected in concentrations <br /> exceeding method detection limits by EPA Method 8240 or 8260 <br /> ° Result within quantitation range,chromatographic pattern not typical of fuel <br /> Page 4 of 4 <br />