EPA Proposes Stringent Cleanup Levels For Dioxins in Soils at Contaminated Sites

摘要

The Environmental Protection Agency published interim guidance Jan. 7 that would make acceptable levels for cleanup of dioxins in soil significantly more stringent, making good on a pledge to do so by year-end (75 Fed. Reg. 984).rnThe interim guidance would revise "preliminary remediation goals," or PRGs, for cleanup of dioxins in soil at superfund, brownfield, and other contaminated sites.rnFor residential soil, the acceptable level of 1,000 parts per trillion would be reduced to just 72 ppt. The proposed guidance would reduce the goal for dioxins in commercial or industrial soil from the current 5,000-20,000 ppt level to 950 ppt, according to EPA.