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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. VVHF 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 /> of Custody is provided in Appendix C. <br /> Table 1: B-1 Soil Analytical Data <br /> Sample ID TPH-G Benzene Toluene E.-Benzene X lenes MTBE Ethanol t-Butanol <br /> B-I 10' ND ND ND ND ND ND ND <br /> B-1 15' Ia,D00_ ...... j800. . G4OOD. 34Q,404 .::.: 70;0,004.: ;::9SQa ND ND <br /> B-1 20' 4!,400. ....3;G00 240 :D00.:, „>.. 100000....:.. 1,f,t100. 36,f10a ND ND <br /> B-1 25' 58;000 4Q.O.,OC}0 Slli00F ND ND <br /> B-1 30' 1,7Q�: :=..... :1a0.. 500, 38 040. 190,QY0I..QOa ND ND <br /> B-1 35' 3 800. 11::4,Q0 ::.. 220,,004:...:..... ND 7,SOD. ND <br /> B-1 40' 3Sfi00 ND 33,1) 0 :; ND <br /> B-I 45'500 :..I1# (} :... . ..14(1,Q00, ND ND ND <br /> B-1 50' 8 0::.:.....,5., 010...::. OQO . 1 ,:a00:...... ....5f1,001:.' ND ND ND <br /> B-I 55' :. :::85....:: 750. x.4..;000... 1; 00. <br /> ,... S. bO[? .:..: ND ND ND <br /> a .... .::: . ... . :: <br /> B-1 n 60' ND A:- ND 2 ,OQ0 ND <br /> B-1 @ 65' ND ND44 ND 10 62 ND ND <br /> B-1 70' S9d ND ND ND <br /> 7�...:::.: '.32...'..:.. . . ....at0.... .:. ........180:: ::... ...... <br /> B-i @ 75' 68....:...: ND 440.... 66 ..:...:.: ........ 31€l.. ND ND ND <br /> B-1 80' NDa ::.... 3 .1ND .. 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 />