Eureka Times Standard, Feb. 21, 2008

The Simpson Timber Co. will be removing tons of sediment contaminated with dioxin from the foot of Del Norte Street a part of a settlement of a 2006 lawsuit filed by Humboldt Baykeeper and Californians for Alternatives to Toxics.

The lawsuit came after tests were conducted near the site of a former Simpson plywood mill, where the company commonly sprayed plywood with the now-banned wood preservative pentachlorophenol in the 1960s, revealed the presence of dioxin, according to joint news release from Humboldt Baykeeper and CATS. Dioxin is an accidental byproduct of pentachlorophenol, according to Patty Clary of CATS.

The tests revealed the presence of dioxin at levels "tens of thousands of times higher than Environmental Protection Agency standards," according to the news release.