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TABLE 2 GROUNDWATER ANALYTICAL DATA Former Chevron Service Station 9 5775 301 West Kettleman Lane Lodi,California Well Ethyl- Total Identification Date TPHg Benzene Tolb Ae benzene Xylenes MtBE Methanol Ethanol TBA DIPE EtBE TAME 1,2-DCA EDB TCE p-IPMB PCE Notes L 04n-) W911L) 01911.) 41911L) W911L) (p9&) W9/L) W9n) (pg/L) (pgA-) Ug/L) (p9/L.) EX-3 1129 30101 400 <50 <50 <50 <50 3,900 <500 <50 130 <50 200 44 <60 <50 <50 <50 <50 Cr 03/23/01 <400 <40 <40 <40 <40 2000 <400 <40 240 <40 88 20 <40 <40 c 06twol 110 <0 5 <0 5 <0 5 <0 5 1,300 <200 39 46 <0 5 58 14 <0 5 <05 c 09/06/01 <20 <0 20 <0 20 <0 20 <0 60 290 <200 <50 13 <05 17 3 <G5 <0 5 c 11/20/01 <50 <0 5 <0 5 <0 5 <15 180 <200 <50 <50 <0 5 12 2 <0 5 <0 5 c 01/17/02 <50 <0 5 <0 5 <0 5 <15 180 <200 <50 <5 <0 5 12 2 <05 <05 c 04/30/02 <50 <0 5 <0 5 <0 5 <0 5 150 <200 <50 <5 11 2 <0 5 <0 5 c 07/29/02 <50 <0 5 <0 5 <0 5 <0 5 38 <200 <50 <5 <0 5 3 <0 5 <0 5 <0 5 - - - b 10/29/02 <50 <0 5 <0 5 <0 5 <0 5 21 <200 <50 <5 <05 2 <05 <0 5 <05 - - - b 3/1314/03 <50 <0 5 <0 5 <0 5 <0 5 19 <50 <50 <50 <0 5 19 <0 5 <0 5 <0 5 - - -- c 04!28103 <50 <0 5 <0 5 <0 5 <0 5 15 <200 <50 <5 <0 5 2 <0 5 <0 5 <05 b 07@9= <50 <0 5 <0 5 -105 <0 5 13 <200 <50 <5 <0 5 1 <0 5 <05 <0 5 b EXPLANATIONS TPHg=Total Petroleum Hydrocarbons as gasonline TBA=Tertiary butyl alcohol TAME=Tertiary amyl methyl ether TCE=Tncholorethylene pg/L=Micrograms per Liter DIPE=DI-Isopropyl ether 1,2-DCA=1 2-Dichloroethane pIPMB=Para-Isomethyl benzene MtBE=Methyl tertiary butyl ether EtBE=Ethyl tertiary butyl ether EDB=Ethylene Dibromide PCT==Tetra(per)chloroethylene -=Not Measured/Noi Sampled/Not Applicable NOTES a) Groundwater monitoring data and laboratory analytical results prior to January 29,2000,were compiled from reports prepared by Blaine Tech Services Inc b) Groundwater monitoring data collected by Getlfer-Ryan,Inc C) Groundwater monitoring data collected by SECOR International,Inc d) Laboratory report indicates weathered gasoline C6-C12 e) TPHg,BTEX by EPA Method 8250 f) Laboratory report indicates gasoline C6-C12 9) Laboratory report indicates the reported value for TPHg Is primarily due to the presence of three compounds 2-butanone,tetrahydrofuran and cyclohexanone These compounds are associated with PVC pipe cement h) Purged 150 gallons of water from well and then sampled k) Purged 110 gallons of water from well and then sampled m) Well resampled to confirm the presence of TPHg n) Well pumped weekly, sample collected directly from well p) Full time groundwater extraction system in place and active as of July 3,2000 See O&M report for system data r) Sample collected from influent port in remediation compound s) Sample collected after approximately 1,400 gallons of potable water was pumped through system during cleaning procedures t) Sample collected from top of water column using disposable bailer or from bottom of well using bomb sampler u) Quarterly sample not collected due to cycling of submersible pump v) Confirmation Analysis w) Sample missed during quarterly sampling event 11Chevronu5775VableslGW Analytical ids 16 of 16