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1 1 <br /> Sunland Gasoline March 14, 2000 <br />' 2085 Fremont Street, Stockton, California Page 4 <br /> Report of Findings, Site Characterization <br /> 3.3 Groundwater Sampling <br /> The groundwater sample was collected using a hydro-punch type device. <br /> Groundwater samples collected for analysis were analyzed using EPA method <br /> 5030/LUFT for gasoline petroleum hydrocarbons, EPA method 8020 for BTEX, <br /> and EPA method 8260 for fuel oxygenates. <br /> 4.0 Analytical Results <br /> ' The analytical results were completed on March 7, 2000. WHF received and reviewed the <br /> results on March 10, 2000. The conditions found in the soil and groundwater at the time <br /> ' of this field investigation, as depicted by soil and groundwater analytical data collected <br /> from B-1 and B-2, are found below. <br /> 4.1 Boring B-1 -Soil Analytical Data <br /> The results from this boring indicate that soil contamination in the form of Total <br /> ' Petroleum Hydrocarbons as Gasoline (TPH-G), BTEX, MTBE, Ethanol, and <br /> tertiary Butanol exist in the subsurface underlying this site. Table 1 provides a <br /> summary of the laboratory findings for boring B-1. The analytical data and Chain <br /> lie of Custody is provided in Appendix C. <br /> Table 1: B-1 Soil Analytical Data <br /> Sample ID TPR-G Benzene Toluene E-Benzene Xylenes MTBE Ethanol t-Butanol <br /> B-1 10' NDND ND ND ND ND ND <br /> B-1 15' 1SUOfl _.1 8.44 .. .::654,Q.0.0 340;40Q.. . '.':1 7Q0004. 9,6QQ .:': ND ND <br /> B-1 20' <br /> 4,400.... 3,600 ;:2QQ,00 Iflfl,OOfl 51Q, QQ.... `: 36,OOfl ND ND <br /> B-1 @ 25' 3 GOU 4,Q00 180,000 88,Q00 40Q,Ofl0 n.0OQ : ND ND <br /> B-1 30' „....1, 44 >r,S00.. :85 00: 38 4fi1;0 .... ,;:,. 190 004 Ooo . ND ND <br /> B-1 35' goo...':.:: 1 Qa0 aafl Ni) <br /> Soo ND <br /> B-1 40' 3}�6;Qfl... 32 D00 23fl QOU 'T3 000 <br /> > . . : , 360Oflfl ND 33,©D0. ND <br /> B-1 45' 1,540 1 ,.000 ND ND ND <br /> ' B-1 50' 8i0 5 400 26,440 11 004 50 04o ND ND ND <br /> B-1 55' 85.. .. 750.... 14 D00..,.. ...::;,.1,640 8,6.00..... : ND ND ND <br /> B-1 <br /> 60' ND 0..:' :: ... 4 ;z9,QQ0 .!; ND <br /> B-1 65' ND ND 2 ND lu 62,< ND ND <br /> B-1 70' 73. ... :>... . :. .. .... .S110.':.. . ...'.. $0. 50......., ND ND ND <br /> ND44Q.. .. 66.:. ...... :::.....31:0 ND ND ND <br /> ' B-1 80' ND 1Q'. . 36ND <br /> 27 ND ND ND <br /> Units: mg/Kg—TPH-G; ug/Kg—BTEX,MTBE,Ethanol, t-Butanol <br /> "ND"—None Detected at or above the reporting limits <br />