Laserfiche WebLink
1 <br /> The soil boring drilled inside the garage and adjacent to the former dispenser island (G-1) was <br /> advance to a total depth of 35 feet bgs, and the two soil borings drilled through the city sidewalk <br /> (G-2 and G-3) were both advanced to a total depth of 30 feet bgs Groundwater was <br /> encountered in all three borings at depths ranging from 23 5 to 26 feet bgs <br /> From all three soil borings, discrete, undisturbed soil samples were collected at five foot intervals <br /> to the total depths of the borings From the two sod borings in the city sidewalk (G-2 and G-3), <br /> the first soil samples were collected at 15 feet bgs A field geologist logged all soil samples for <br /> hydrogeologic and lithologic characteristics according to the Unified Soil Classification System <br /> and screened each sample for organic vapors using a photoionization detector (PID) <br /> ' From each soil boring, a groundwater-grab sample was collected From G-1, the groundwater <br /> sample was collected using a one-inch diameter polyvinyl chloride (pvc) temporary well <br /> ' consisting of 10 feet well screen, spanning from 25 to 35 feet bgs From G-2 and G-3, the <br /> groundwater samples were collected using a Hydropunch All three groundwater samples were <br /> removed from the boreholes using a decontaminated stainless steel bailer Following the <br /> groundwater-grab sampling, each of the soil borings was abandoned using a neat cement grout, <br /> placed to the bottom of the boring using a tremae pipe <br /> A total of 11 soil samples and all three of the groundwater-grab samples were labeled and <br /> ' transported in an iced cooler with chain-of-custody documentation to Kiff Analytical, LLC (Kiff), a <br /> state of California certified hazardous waste testing laboratory (Certification #2236) Kiff <br /> analyzed all of the soil and groundwater-grab samples for TPH-as-diesel, TPH-as-motor oil, and <br /> ' TPH-as-kerosene by modified EPA Method 8015, and for TPH-as-gasoline, STEX, MTBE, di- <br /> isopropyl ether (DIPE), ethyl tertiary butyl ether (ETBE), tertiary amyl methyl ether (TAME) and <br /> tertiary butanol (TBA) by EPA Method 8260B The soil samples collected at 10 and 30 feet bgs <br /> from G-1 were also analyzed for total lead by EPA Method 6010 <br /> 1 <br /> 7 <br />