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TABLE 2 <br /> SUMMARY OF SHALLOW GROUNDWATER ZONE ANALYTICAL RESULTS <br /> Former Stockton City Taxi Cab Co. and Former Apache Plastic Facility <br /> Stockton , California <br /> Page 3 of 3 <br /> (Reported in ug/L) <br /> - - Sample Date Benzene Toluene Ethyl Xylenes MTBE DIPE I ETRE I TAME 1 ,2-DCA EDB I TBA I TPI-Ig <br /> ID I I I Benzene <br /> MW14 12/7/06 <0.5 <0.5 <0. 5 <1 .0 <0.5 <0.5 <0.5 <0.5 <0. 5 <0.5 <5.0 <50 <br /> Shallow zone <br /> Screen <br /> interval <br /> (45'-60') <br /> Former Apache Plastics Facility <br /> A-MW2 5/18/01 <1 .0 <1 .0 <1 .0 <1 .0 <1 .0 <2.5 <2.5 <2.5 180 NA <50 <250 <br /> Shallowzone 11 /5/01 <2.5 <2.5 <2.5 2.9 <2.5 <0.5 <0.5 <0.5 240 NA <50 <500 <br /> Screen 2/14102 <0.50 <0.50 <0.50 <0.50 <0.50 <1 .0 <1 .0 <1 .0 8.8 NA <5.0 <50 <br /> interval 5/20/02 <1 .5 <1_5 <1 .5 <1 .5 <1 .5 <3.0 <3.0 <3.0 320 NA 54 <300 <br /> (521-66.51) 8/27/02 <2.5 <2.5 <2.5 <2.5 <2.5 <5.0 <5.0 <5.0 390 NA <50 <500 <br /> 12/5/02 <0.50 <0.50 <0.50 <0.50 <0.50 <1 .0 <1 .0 <1 .0 29 <2.0 <5.0 <50 <br /> 27570-3 <p.50 - <0.50 <0.50 <q50 <0. 50 <1 .0 <1 .0 <1 .0 86 <2.0 <10 <100 <br /> 5/28/03 Well covered by vehicle - not sampled <br /> 8/11 /03 <0.50 <0.50 <0.50 <0.50 <0.50 <1 .0 <1 .0 <10 6. 1 <2.0 <5.0 <50 <br /> _ 11 /10/03 <0.50 <0.50 <0.50 <0.50 <0.50 <1 .0 <1 .0 <1 .0 74 <2.0 19 59 <br /> 2/23/04 58 1 .9 17 2. 1 <0.50 <1 .0 <1 .0 <1 .0 <1 .0 <2.0 41 480 <br /> 5/24/04 <0.50 <0.50 <0.50 <0.50 <0.50 <1 .0 <1 .0 <1 .0 4.2 <2.0 <10 <50 <br /> 8/23/04 1 .8 <0.50 <0.50 <0.50 <0.50 <1 .0 <1 .0 <1 .0 140 <4.0 12 <100 <br /> 11 /19/04 <0.50 <0.50 <0.50 <0.50 <0.50 <1 .0 <1 .0 <1 .0 150 <4.0 <10 130 <br /> 3/3/05 <0.50 <0.50 <0.50 <0.50 <0.50 <1 .0 <1 .0 <1 .0 35 <2.0 <10 <50 <br /> 5/12/05 <1 .0 <1 .0 <1 .0 <1 .0 <1 .0 <2.0 <2.0 <2.0 210 <8.0 32 <200 <br /> 8/15/05 <1.11- <1 .0 <1 .0 <1 .0 <1 .0 <2.0 <2.0 <2.0 <8.0 <20 <br /> 11 /22/05 1 .0 3.2 <1 .0 <1 .0 <1 .0 <2.0 <2.0I, <br /> 2.0 <2.0 57 <8.0 <20 <200 <br /> Notes: <br /> ug/L denotes micrograms per liter <br /> < denotes not detected at or above Stated Method Detection Limit <br /> MTBE denotes methyl tertiary butyl ether, analyzed by EPA Method 8260B <br /> DIPE denotes Di-Isopropyl Ether, analyzed by EPA Method 8260B <br /> ETBE denotes Ethyl-t-Butyl Ether, analyzed by EPA Method 82608 <br /> TAME-denotes t=Am-yl-Me-thyrEther;an- alyzedTiyEPA Method 8260 <br /> 1 ,2-DCA denotesl ,2-Dichloroethane, analyzed by EPA Method 82608 <br /> EDB denotes 1 ,2-Dibromoethane, analyzed by EPA Method 82606 <br /> TBA denotes t-Butanol, analyzed by EPA Method 82608 <br /> TPI-Ig denotes Total Petroleum Hydrocarbons as gasoline, analyzed by EPA Method 8015M <br /> N/S denotes not sampled <br /> MW11 was destroyed on April 71 2005 and replaced by MW11 R. <br /> NA denotes not analyzed <br /> Data associated with the former Apache Plastics Facility were transcribed from the Q uarter/y Groundwater Monitoring Report Fourth Quarter 2005 , <br /> prepared by Stratus Environmental, Inc. , dated January 10, 2006. <br /> S1EnOromente BM) - Foppiane\tables\Comparative Study ShallmGWFAB <br />