WORK PLANS - Laserfiche WebLink

Home Browse Search

0 25 November 2013 AGE-NC Project No. 13-2675 Page 4 of 5 A total of four soil samples collected from borings B1 through B3 were analyzed for TPH-g and VOCs. The following target analytes were detected: • TPH-g were detected in soil samples collected from boring B3 at 15 feet and 20 feel: bsg at concentrations of 31 milligrams per kilogram (mg/kg) and 33 mg/kg, respectively; • Naphthalene was detected in soil samples collected from boring B3 at 15 feet and 20 feet bsg at concentrations of 1.1 mg/kg and 0.66 mg/kg, respectively; and • BTEX compounds were not detected above laboratory reporting limits in the soil samples analyzed; however, six additional VOCs were detected in soil samples collected from boring B3 at 15 feet and 20 feet bsg at concentrations ranging between 0.011 mg/kg (1,2,4-tri methyl benzene) and 0.52 mg/kg (n-butylbenzene). Analytical results of the soil samples are summarized in Table 1. Grab groundwater samples were collected from borings B1 through B3 and analyzed for TPH-g and VOCs. The following target analytes were detected: • TPH-g were detected in the groundwater sample collected from boring B3 at a concentration of 35,000 micrograms per liter (pg/I); • Toluene, ethylbenzene and xylenes were detected in the groundwater sample collected from B3 at concentrations of 5.4 pg/I , 5.1 pg/I, and 9.3 pg/I, respectively; benzene was not detected above laboratory reporting limits in the groundwater samples analyzed; and © Naphthalene was detected in the groundwater sample collected from B3 at a concentration of 8.3 pg/I; six additional VOCs were detected in the groundwater sample collected from B3 at concentrations ranging between 3.7 pg/I (1,3,5-trimethylbenzene) and 84 mg/kg (1,2,4-trimethylbenzene). Analytical results of grab groundwater samples are summarized in Table 2. The soil and groundwater laboratory report (CTEL Project No. CT214-1311006), quality assurance and quality control (QA/QC) reports, and chain of custody forms are included in Appendix B. Advanced GeoEnvironmental,Inc.