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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/LU-FT for gasoline petroleum hydrocarbons, EPA method 8020 for BTEX, <br /> and EPA method 8260 for fuel oxygenates. <br /> 4.0 Analytical Resulls <br /> The analytical results were completed on March 7, 2000. VaT 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-i 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-I Soil Analytical Data <br /> Sample ID TPH-G Benzene Toluene E-Benzene Xylenes MTBE Ethanol t-Butanol <br /> B-1 10' ND ND ND ND ND ND ND `5"A2 << <br /> B-1 1s' 11 ,00 �, Oo� "6�O,Q40 3�a, 00 ,7oa,00a 9, € t~r : ND ND <br /> B-1 20' x. ':..:' . 3.600. :.�.: 2000aa.... oa,O,00 .. ...i.:: 1E> 04 [ 36,€Oa ND ND <br /> B-1 2s' a ;EloQ ND ND <br /> ND ND <br /> rev ...:<7, 00. ND <br /> ND <br /> ND <br /> ND . J � ISTD <br /> B-1 �t5 - <br /> B-1 so' .. .si ...: ., OO.:...1:'. .�.s, o ...:. ND ND ND <br /> B-1 55' 8�.:_.......... : b4,U; f1.... ...: 1.,6OQ..... 8a60f1 ND ND ND <br /> B-1 60' I ND ?O ....::;.... . 0 .. : D: ND ,6Qa ND <br /> ..a>. ND <br /> B-1 65' ND ND :., la :6.. ND ND <br /> . .-. � :0 s..: I8O0 ND I ND ND <br /> B-1 70' 73 E .... .. t <br /> B-1 75' : �... .. ND :a :..... .... ...... ND I ND I .. <br /> B-1 80' ND <br /> . 36 ND ...?� ......: .,< 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 />