Tag Archives: chemicals

EPA Announces Final Ecological Effects Test Guidelines (Series 850) Under TSCA, FIFRA and FFDCA

On Dec. 29, 2016, EPA’s Office of Chemical Safety and Pollution Prevention (OCSPP) announced the availability of new final test guidelines in Series 850 Group A, pertaining to measuring the Ecological Effects of chemicals on Aquatic and Sediment-dwelling Fauna and Aquatic Microcosms. The new test guidelines include revised standards as well as several name changes … Continue Reading

US EPA Announces New Plan For Identifying Existing Chemicals For Risk Assessment

On March 1, 2012, US EPA announced that it has finalized a new plan for identifying which existing chemicals should undergo comprehensive risk assessment under the Toxic Substances Control Act (TSCA).  US EPA also announced that, using this new plan, it has identified  83 existing chemicals for further risk assessment, with 7 of those chemicals … Continue Reading

New MCLs Could Trigger Background Level Studies at Superfund Sites

A frequent issue raised early in the Remedial Investigation/Feasibility Study (“RI/FS”) process at CERCLA sites is whether chemicals of concern occur naturally at the site or are there due to a man-made.  If it is a “naturally occurring substance,” no remediation obligation is triggered by its detection as provided by CERCLA § 104(a)(3)(A). Chromium levels … Continue Reading