Home Programs Toxics Initiative
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Toxics Initiative and Enforcement

Storm Drains with lots of trash coming outHumboldt Baykeeper addresses water pollution on a case-by-case basis, and provides information to encourage Humboldt Bay residents to take action to address the problem of toxics in our environment. 

Historic industrial activity continues to impact the Bay along with the health of local residents and the area’s economy. Dioxin, heavy metals, petroleum products, and other contaminants persist in areas where they were used in the past, and continue to enter Humboldt Bay through storm water and ground water discharges.  Humboldt Baykeeper works to stop this ongoing problem by seeking cleanup of these sites.

One focus of Humboldt Baykeeper’s Toxics Initiative is the past use of wood preservatives at dozens of lumber mills that once lined the shores of the Bay and its tributaries. The mills used the chemical pentachlorophenol (also known as "penta") which led to the release of contaminants such as dioxins and furans. Accidental spills and illegal dumping of these chemicals resulted in soil and water contamination. For example, the former Simpson Plywood Mill, and an adjacent drainage swale that discharges directly into Humboldt Bay, was heavily contaminated by dioxins and furans. Through Humboldt Baykeeper’s Toxic Initiative, this ongoing threat to Humboldt Bay was identified, and is currently undergoing clean up activities to eliminate this source of dioxin.

In 2006, Humboldt Baykeeper petitioned the State Water Resources Control Board to add Humboldt Bay to California’s Threatened and Impaired Waters list under Section 303(d) of the Clean Water Act.  As a result,  Humboldt Bay was listed for dioxin

Humboldt Bay was listed as Impaired by PCBs under Section 303(d) of the Clean Water Act in 2002, based on levels of PCBs found in fish tissue. PCBs have been demonstrated to cause a variety of serious health effects, including cancer and serious effects on the immune system, reproductive system, nervous system, and endocrine system. For more info on the health effects of PCBs, click HERE

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# Article Title
1 New Dioxin Data: Good News, Bad News
2 EPA Fails to Protect Endangered Species from Toxics
3 Sea Level Rise Vulnerability Assessment of Contaminated Sites
4 Humboldt Bay Dioxin Sampling Locations and Results: Shellfish & Fin Fish
5 Cleanup of Contaminated Waterfront G & R Metals Property Moves Forward
6 Dioxin Resources
7 Dioxin Listing Demystified
 
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