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' 25 February 2002 <br /> . AGE-NC Project No 00-0764 <br /> Page 3 of 8 <br /> The container and soil was transported to Waste Management Landfill - Kettleman City, under <br /> manifest for proper disposal on 25 September 2000 <br /> ' 3.0. SCOPE OF WORK <br /> Based on analytical data from the UST system removal, soil excavation at the site, the PHS-EHD <br /> required a soil and ground water investigation to define the lateral and vertical extent of the <br /> significant hydrocarbon-Impact to soil encountered in the east end of the UST excavation and at the <br /> western edge of the site <br /> To assess the site as required by the PHS-EHD, AGE prepared to advance four soil borings in the <br /> area of known Impacted area to collect soil and ground water samples for laboratory analysis for <br /> hydrocarbons <br /> 3 1 PROBE BORINGS AND SAMPLING <br /> On 23 and 24 October 2001, four soil probe borings (B1 through B4) were advanced at the site, <br /> under the oversight by the PHS-EHD Probe borings were advanced in former UST excavation and <br /> west,southwest and east of the former UST area to collect soil and grab water samples Probe boring <br /> ' B 1 was advanced to a total depth of 65 feet below surface grade (bsg) and bonngs B2 through B4 <br /> were advanced to 40 feet bsg Locations of the soil probe borings are Illustrated on Figure 2 <br /> Soil samples were collected from probe borings using a Geoprobe soil sampling device loaded with <br /> four 6-Inch by 1 125-inch brass sleeves Soil samples were collected at five-foot intervals from <br /> bonngs B 1 and B2 and at ten-foot Intervals from borings B3 to B4,starting at ten feet bsg The ends <br /> of the soil-filled second sleeve were covered with Teflon sheets, capped and sealed with tape All <br /> samples were labeled with the boring designation, date, time and collector's initials <br /> Collected samples preserved for laboratory analysis were placed in a chilled container,under ice,and <br /> transported to McCampbell Analytical,Inc ,(MAI)under chain-of-custody The sampling equipment <br /> was washed in an Alconox solution and rinsed with water prior to each sampling run to avoid cross- <br /> contamination <br /> ' All probe bonngs were permanently sealed to prevent vertical migration of contaminants by <br /> backfilling with cement slurry from the total depth to surface grade <br /> • <br /> Advanced CeoEnvvonmental,Inc <br />