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2014 TSCA Work Plan Assessment Update—How It Works In the beginning, back in 2012, the EPA first used several sources to identify chemicals meeting prioritization factor criteria as potential candidates for review, a process that initially identified 1,235 chemicals. Next, the chemicals were screened to determine if any chemicals should be excluded due to other […]
2014 TSCA Work Plan Assessment Update—The Chemicals As noted yesterday, Action Plan chemicals are the most important identified by the TSCA Work Plan for Chemical Assessments, and in 2014, the following chemicals and chemical groups were added: Bisphenol A (BPA)—Ranked high for hazard and exposure; Decabromodiphenyl ether (decaBDE)—Ranked high for hazard, exposure, and persistence/bioaccumulation; Hexabromocyclododecane […]
Other Factors The NOAA states that there are multiple general factors that must be considered in developing and implementing a plan to remove fuel or another potentially polluting substance from a sunken wreck. For example: • Vessel construction/engineering. The actual construction and engineering of the vessel in areas such as plate thickness, riveting, and welding […]
But given the difficulty of confirming information about submerged shipwrecks, there are many uncertainties about the estimates. For example, the NOAA says that 47 of the 87 priority vessels have unknown or unconfirmed locations. Unconfirmed locations include vessels where divers have reported finding a shipwreck, but definitive identification of the shipwreck has not been made. […]
Following are key points made in the draft guidance in three critical areas–significant nexus, tributaries, and adjacent wetlands. Significant Nexus To evaluate the presence or absence of a significant nexus, the agencies intend, as a general matter, to consider: • Waters similarly situated with waters of the same resource type, specifically tributaries, adjacent wetlands, or […]
Here are some frequently asked questions about EPA’s listed hazardous wastes. Acute Hazardous Wastes Q. What RCRA hazardous wastes are classified as "acute" hazardous wastes? A. Hazardous wastes listed in accordance with the criteria in 40 CFR 261.11(a)(2) are designated as "acute" hazardous wastes. Acute hazardous wastes are assigned the hazard code (H) (40 CFR […]
1. Ignitability, 2. Corrosivity, 3. Reactivity, or 4. Toxicity The second way to tell if a waste is hazardous is if it is included on a specific list of wastes EPA has determined are hazardous. These “listed wastes” are placed on a list because EPA finds them to pose substantial present or potential hazards to […]
