Laserfiche WebLink
Mr. Philip Isorena Proposal P93-040.31 <br /> July 12, 1993 <br /> Page 8 <br /> Task 8. Laboratory Analyses <br /> All groundwater samples collected during field screening and from monitoring wells will <br /> be labeled, recorded on chain-of-custody documents, and submitted to a state certified <br /> analytical laboratory. Samples will be analyzed for the following parameters: <br /> TPHG by U.S. Environmental Protection Agency (EPA) Method 8020 <br /> Benzene, toluene, ethylbenzene, and total xylenes (BTEX) by EPA Method <br /> 8020 <br /> TPHD by EPA Method 8015 Modified (field screening with HydroPunch, <br /> BAT volumes are insufficient) <br /> Dissolved lead by EPA Method 7421 <br /> Task 9. Biodegradation Assessment <br /> The objectives of the biodegradation assessment are to evaluate current environmental <br /> conditions and potential enhancement techniques for biodegradation. Current <br /> environmental conditions related to biodegradation will be evaluated by analyzing <br /> groundwater samples for important biological parameters. Groundwater samples will be <br /> collected from six A-zone and two B-zone monitoring wells distributed throughout the <br /> facilities. Groundwater samples from A-zone wells for the biodegradation study include <br /> upgradient well TO/WC-1S and downgradient wells TS-9, ST/MW-1, PS/WC-4S, <br /> PS/WC-2S, and AR/MW-IIA. Groundwater samples from B-zone wells for the <br /> biodegradation study include upgradient well PS/MW-1M and downgradient well <br /> PS/WCAM. All of the proposed wells are included in the quarterly groundwater <br /> monitoring program. Samples for the biodegradation study will be collected during the <br /> first quarterly sampling event following approval of this workplan. <br /> Samples will be analyzed for the following parameters: <br /> pH <br /> Nitrate-nitrogen <br /> Ammonia nitrogen <br /> Orthophosphate <br /> Total organic carbon <br /> Dissolved oxygen <br /> Carbonate bicarbonate <br /> SAGPRMM30403 Lbc-93 lmc:5 <br />