Notes
Email chain (AR 017786-017788, DOE S-13:01 0884-0886) forwarded by Joan Marchioro (ATG) to Raymond Hellwig on November 22, 2000, originating from Peter Kmet to Chung K. Yee on September 11, 2000, marked not for production as deliberative. Discusses proposed new Method A soil cleanup levels under MTCA (Model Toxics Control Act), WAC 173-340-708(b), with attached spreadsheet TABL740g.XLS comparing current and proposed values for arsenic (7 PPM USGS background), benzene, benzo(a)pyrene, cadmium, chromium, DDT, ethylbenzene, ethylene dibromide (EDB), lead, lindane, methylene chloride, mercury, MTBE, naphthalenes, PAHs, PCBs, tetrachloroethylene, toluene, 1,1,1-trichloroethane, trichloroethylene, xylenes, TPH (gasoline, diesel, heavy oil, mineral oil, GRO, DRO). Addresses use of Method A values as clean fill standard, groundwater monitoring, terrestrial ecological protection, ecological indicator concentrations, and legal questions regarding defining clean fill. Kmet recommends using new standards, cautions on arsenic, diesel, heavy oil, and mineral oil values (suggesting 200 PPM current Method A for those), and references USGS statewide background study.