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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 /> 1 4. 0 Analytical Results
<br /> ■ The analytical results were completed on March 7, 2000. VdV 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 13-2, are found below.
<br /> ' 4. 1 Boring B4 - 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 I 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 Xylenes MTBE Ethanol t-Butanol
<br /> B- 1 10 ND ND ND ND ND ND ND 620
<br /> B - 1 15 <':i5,D00 NOW 800 65 '%Qe ; , , 346;000 1:;706,060 i 9,606 : ' ND ND
<br /> .1 F' B- 1 201 260,000 10D;p00 510,000 36 000 ND ND
<br /> B- 1 25 3 600 4,000 180,000: 88,000 40D,ODQ 51000 ND ND
<br /> IF
<br /> B4 30 1,740 1500 85 000 : - 38 -0D0 396,060 .:;! 11090: i ND ND
<br /> IF
<br /> ' B- 1 35 3 800F.
<br /> it 090 : 220 0011 ?6 000 ; 380 000 ND 7 500: ND
<br /> B-1 40 3,606 32,660 1236,900 . 73,QOD 360,000 ND 33,600_ ND
<br /> B4 45 >1506 . , .; ; 15,OQ0 .... .. : 29,400 140,600 >' ND ND ND
<br /> ' B-1 50 810+ 5 400 r n26,g00 11 000 50 000 ND ND ND
<br /> B- 1 a 55 85IF
<br /> , ., . ND ND
<br /> B- 1 60 ' ND X74 . `. 2F, i0 69 ND 29,600 a. ND
<br /> B-1 65 ND ND 92 , 3 ND lU 62„xl ND ND
<br /> B- 1 70 73. 2 , ,. . 514 ...: 780 590 ND ND ND
<br /> B- 1 75 $ ND 440 6:6 310 ND ND ND
<br /> B- 1 80' ND I9 36 ND 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
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