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1 <br /> 2 32 Sotl Sampling aAys <br />' During drilling, soil samples were collected at five-foot intervals using a modified California split- <br /> spoon sampler lined with 2-inch diameter by 6-inch long brass or stainless steel sleeves A <br /> Ramage Environmental field geologist logged each of the soil samples for geologic and <br /> hydrogeologic characteristics and screened each sample for any organic vapors with a <br /> photoionization detector (PID) The monitoring well logs, with well construction diagrams and PID <br />' measurements, are included as Appendix D <br />' To further evaluate the extent of impacted soil, the soil samples collected at 30, 40 and 50 feet <br /> bgs from all four soil borings were submitted for laboratory analysts These soil samples were <br /> sealed with Teflon®film and plastic end caps, labeled, and transported in an iced cooler with <br /> rchain-of-custody documentation to Kiff Analytical, LLC (Kiff), a state of California certified <br /> hazardous waste testing laboratory (Certification#2236) Kiff analyzed each of the soil samples <br />' for TPH-as-gasoline, BTEX, methyl tertiary butyl ether (MTBE), di-isopropyl ether (DIPS), ethyl <br /> tertiary butyl ether (ETBE), tertiary amyl methyl ether (TAME), tertiary butanol (TBA), and 1,2-DCA <br />' by EPA Method 8260B <br /> 2 3 3 Groundwater Monitoring, Sampling and Analysis <br /> On November 1, 2001, Ramage Environmental monitored and sampled groundwater from the <br /> existing and newly-installed wells Upon arrival at the site, each of the wellheads was inspected, <br /> unlocked and opened Depth-to-groundwater was measured in each of the wells using a water <br /> level indicator capable of measuring groundwater to within 0 01 foot <br />' Following the groundwater level measurements, each of the wells was purged and sampled The <br /> wells were purged using a pump and disposable tubing until at least three well casing volumes <br />' were extracted and/or after groundwater temperature, pH and electrical conductivity values had <br /> stabilized <br />' <br /> Following well purging, groundwater was sampled from the wells using dedicated disposable <br /> bailers and laboratory-supplied containers Each sample was labeled, packaged in an iced cooler - <br /> and transported with chain-of-custody documentation to Kiff Kiff analyzed each of the <br /> groundwater samples for TPH-as-gasoline, BTEX, MTBE, DIPE, ETBE, TAME, TBA, and 1,2- <br /> DCA by EPA Method 8260B <br /> �� 11 <br />