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TABLE 1 <br /> SECOND QUARTER 2021 GROUNDWATER LEVELS AND SUMMARY OF LABORATORY ANALYTICAL RESULTS <br /> CANCUN RESTAURANT <br /> 135 EAST MINER AVENUE <br /> STOCKTON,CA <br /> (concentrations reported in micrograms per liter-ug/1) <br /> WELL SCREEN DATE DEPTH TO WELL GROUNDWATER ETHYL- TOTAL <br /> NO. INTERVAL SAMPLED GROUNDWATER['l ELEVATIOW1 ELEVATION TPHG 131 BENZENE t41 TOLUENE[41 BENZENE E" XYLENES E" MTBE rs1 TBA tsl DIPE tsl TAME t51 NAPTHALENE E" <br /> (feet-bgs) (feet-bgs) (ft-msl) (ft-msl) <br /> MWAA (20-40) 06/02/2021 14.71 12.38 -2.33 5,600 290 21 460 96 ND<0.50 ND<10 ND<0.50 ND<0.50 190 <br /> MW-1B (55-60) 06/02/2021 14.75 12.43 -2.32 560 1.2 ND<0.50 0.60 3.7 ND<0.50 ND<10 ND<0.50 ND<0.50 ND<0.50 <br /> MW-2B (55-60) 06/02/2021 16.05 11.83 -4.22 2,700 3.6 0.74 3.0 10 ND<0.50 ND<10 ND<0.50 ND<0.50 ND<0.50 <br /> MW-3B (55-60) 06/02/2021 16.33 12.06 -4.27 ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 ND<0.50 ND<10 ND<0.50 ND<0.50 ND<0.50 <br /> MW-4B (55-60) 06/02/2021 16.06 11.76 -4.30 ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 ND<0.50 ND<10 ND<0.50 ND<0.50 ND<0.50 <br /> Notes: <br /> [1] Depth to groundwater as measured from the top of well casing. <br /> [2] Well elevations and screen intervals obtained from GeoTracker database. <br /> [3] Analyzed for gasoline range total petroleum hydrocarbons(TPHG)by EPA method no.8260B. <br /> [4] Analyzed for Benzene,Toluene,Ethylbenzene or Total Xylenes by EPA method no.8260B. <br /> [5] Fuel oxygenate compounds methyl tertiary butyl ether(MTBE)and tertiary-butyl alcohol(TBA),diisopropyl ether(DIPE)and teriary-amyl methyl ether(TAME)analyzed by EPA method no.8260B. <br /> ND=not detected above listed analytical method practical quantitation limit. <br /> ft-msl=feet above mean sea level. <br /> bgs=below the ground surface. <br /> FREY Environmental,Inc. Project No.1092-01 <br />