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r r <br /> 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) ( ) ( ) OWL) ( ) ( ) ( ) <br /> RW-1 10/19/95 -- 1505 --- 000 18 000 2000 1 500 370 1 500 1 400 <br /> 12/19195 -- 1646 --- - — <br /> 12/20/95(3) - -- 000 220 12 23 <0 5 23 410 <br /> 115/96(1) --- 1679 --- --- <br /> 7/,2J96 <br /> -712J96 --- 1530 --- <br /> 10118196 --- 1531 —" --- --- <br /> 8/20198 9907 — - — -" —" -- -- — --" <br /> Domestic 914191 -- --- --- 000 <50 <0 5 <0 5 <0 5 <0 5 —_ <br /> Well 117193 --- 000 <50 <0 5 <0 5 <0 5 <0 5 -- <br /> 4/7193 --- -- 000 <50 <05 <0 5 <0 5 <05 <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 /> 4122J97 --- --- -- 000 <50 <0 5 <0 5 <0 5 <2 0 <5 0 <br /> 7/24/97 --- --- 000 <50 <0 5 <0 5 <0 5 <2 0 <5 0 <br /> 11/14/97 --- --- 000 <50 12 10 07 <2 0 <5 0 <br /> 1122/98 ___ 000 <100 <0 5 <0 5 <0 5 <l 5 <S 0 <br /> 5/12/98 --- --- 000 <50 <0 5 <0 5 <0 5 <0 5 <5 0(5) <br /> 8/2D198 _ -_ 000 <50 <0 5 <0 5 <0 5 <0 5 <5 0(5) <br /> 1114198 --- --- 000 <50 <0 5 <0 5 <0 5 <0 5 <5 0(5) <br /> 3/3199 --- --- --- 000 <50 <0 5 <0 5 <0 5 1 5 <5 0 <br /> 5113199 --- --- 000 <50 <0 5 <0 5 <0 5 <0 5 <5 0 <br /> 8/13199 --- 000 00 <0 5 <0 5 <0 5 <0 5 <5 0 <br /> • HP-1 10/20/93 — 0 00 <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 <50 <0 3 <0 3 <0 3 <0 3 -- <br /> Nolo- 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 LUFT modified) <br /> TPI4g Benzene toluene ethylbenzene and total xylenes by EPA Method 8020(CA LUFT modified) <br /> BTEX Methyl tertiary butyl ether by EPA Method 8020 through 1/22198 EPA Method 8260 thereafter <br /> MTBE Not detected in concentrations exceeding the indicated method detection limit <br /> <50 Not tested/measured <br /> Micrograms per liter <br /> pg/L Samples unpreserved and 7 day holding period exceeded samples analyzed 13 days after collection <br /> (1) MTBE by EPA Method 8260=1 300µgfL <br /> (2) Water sample collected from RW-1 after approximately 18 hours of pumping at S fpm <br /> (3) In addition to MTBE 39 pg/L of tert-Butanol was detected by Method 8260 <br /> (4) All other fuel oxygenates were not present in concentrations exceeding method detection limits the sample <br /> (5) Additional fuel oxygenates(ETBE TBA DiPE TAME)were not detected in concentrations <br /> exceeding method detection limits by EPA Method 8240 or 8260 <br /> • <br /> Page 4 of 4 <br /> d <br />]t <br /> t <br />