Laserfiche WebLink
Pombo Prolterty <br /> Subsurface Investigation Report <br /> Page: 2 <br /> • the former underground tank excavation. Baring B-5 was also drilled in the area <br /> of a previously removed underground fuel tank. Boring B-6 was drilled in the <br /> ' Truck and Tractor wash area and sampled for pesticides and petroleum <br /> compounds. Boring B-7 was drilled in a location where above ground fuel was <br /> stored and used historically. Boring B-8 was drilled in front of the barn at 24124 <br /> ' Lammers Road where refrigeration equipment is dismantled. Since there was no <br /> apparent spillage or dumping of refrigerants, only groundwater was sampled and <br /> analyzed. <br /> C•' <br /> Soil and Groundwater Labora ory Sample Results (September 16, 1998 <br /> Sample LD. TEPH Gas Benzene Toluene E-Benzene X ,lenes MTBE 8260 Pest. 60I <br /> ' B-1-10' ND <br /> B-1-15' ND ND ND ND ND ND ND <br /> B-1-17'H,0 ND ND ND ND ND ND ND <br /> B-2-10' ND ND ND ND ND ND ND <br /> B-2-15'H 20 ND ND ND ND ND ND ND ND <br /> 1.�#:fl cltesel<I ND ND ND ND ND ND <br /> ' .09l.0. ND 48Q I t1 30 4; 2t1U 2f QU '�23€1t1:: <br /> .:-8-4:45M ', ND .. .3: t3. 1 Z i)< <br /> B-4-10' ND ND ND ND ND ND ND <br /> .. . ...... ....... ... ..... ... ... .. ..... .... .. .... <br /> 2.1, csfor:iii! 4 ') 7 ND 6 l;I *7 9><,' ND <br /> D 4� ND 49 <.. iS ... 3I;0 ND <br /> N <br /> B-5-15' ND ND ND ND ND ND ND <br /> ............ ..... . ...... ... ....... .... .. <br /> '• B a::17.HzQ: t 3 diesel:: (1 ..,[; ND it 9,<. . ND ND <br /> B-6-5' ND ND ND ND ND ND ND ND <br /> B-6-10' ND ND ND ND ND ND ND <br /> B-6-15'H2O ND ND ND ND ND ND ND ND ND <br /> B-7-10' ND ND ND ND ND ND ND <br /> ND ND ND ND ND ND ND <br /> B-8-17'H2O ND <br /> ' Note: ND w Non Detect I31ank Space=Not Analyzed <br /> Gasoline&I)icsel Rcportcd as gag/Kg(or nzg/1,for water); <br /> BTEX&Oxygenates Reported as pg/Kg(orµg/L for water) <br /> *not confinned by method 8260 * *conl mined for MTBF,by niethod 9260 <br /> ' Additional soil borings with the Geoprobe* were suggested for the areas indicated <br /> on the Figure 4 Proposed Boring Location Map included in our October report. <br /> ' San Joaquin County Environmental Health has since indicated in their letter dated <br /> December 8, 1998 that no further assessment of the tank area B-5 will be <br /> required. They did require the vertical and lateral definition of the contamination <br /> ' plume in the area of B-3 and a minimum of three monitoring wells. A well <br /> survey that shows the location of all agricultural, industrial, domestic, municipal <br /> and other wells located within a 2000-foot radius of the site was also requested. <br /> ' 2.0 SCOPE ON WORK <br /> ' On July 6, 1999 M.J. Kloberdanz & Associates drilled 4 Geoprobe""' soil borings to <br /> various depths to determine both the lateral and vertical extent of soil contamination. <br /> Boring B-9 was drilled adjacent to boring B-3, drilled in 1998, in order to obtain a <br />