Laserfiche WebLink
' INTERIM REMEDIAL ACTION PLAN <br /> 4491 West Durham Ferry Road <br /> Tracy, Califorrua <br /> Delta Prosect No 44-91-732 <br /> Page 6 <br /> Soil samples were collected at 5-foot intervals from 5 feet to 20 feet below the ground surface from <br /> monitoring wells MW-2 and MW-3 Soil samples were screened in the field with a PID, and a total of <br /> eight soil samples were collected at or above the water table The field screening results of the soil <br /> samples collected indicated that the concentrations of volatile organics ranged from below the PID's limit <br /> of detection to 120 parts per million by volume (ppmv) Table 2 presents the results of the field <br /> screening Two of the eight soil samples were selected for chemical analyses <br />' FABLE 2 <br /> RESULTS OF PID FIELD SCREENING <br /> Sample Identification Depth (feet) PID reading my <br /> MW-2-5 5 120 <br /> MW-2-10 10 94 <br /> MW-2-15 15 110 <br /> MW-2-20 20 20 <br /> ' MW-3-5 5 3 <br /> MW-3-10 10 1 <br /> MW-3-15 15 0 <br /> MW-3-20 20 0 <br /> 1 <br /> The soil samples submitted for chemical analysis were collected from a depth of 5 feet from monitoring <br /> ' well MW-2 and 10 feet from monitoring well MW-3 The soil samples were analyzed for total petroleum <br /> hydrocarbons as gasoline and diesel and BTEX using EPA Method 8260 <br /> The chemical results of the soil samples are presented in Table 3 Laboratory data sheets are presented <br /> ' in Appendix D Chemical analyses of the soil sample collected from monitoring well MW-2 at a depth <br /> of 10 feet, indicated the presence of benzene, toluene, and xylenes at concentrations of 0 013, 0 018 and <br /> 0 02 ppm, respectively Chemical results of the soil sample collected from monitoring well MW-3 at a <br /> RPT045 TA <br />