Toxic Substances Control Act

Polychlorinated biphenyls (PCBs) are a toxic chemical of concern on the Spokane River. This page provides information about regulation of PCBs under the Toxic Substances Control Act.

October 23, 2013

The SRRTTF sends a letter to the US Environmental Protection Agency requesting 1) enforcement of the existing Toxics Substances Control Act regulations for inadvertently produced products and 2) elimination of the regulatory exclusion for these products.

Letter from the SRRTTF to EPA regarding PCB in inadvertently produced products, dated October 23, 2013.

Response from EPA dated February 24, 2015


Testimony of Ken Zarker, Washington State Department of Ecology, “Full Committee hearing entitled, “Strengthening Public Health Protections by Addressing Toxic Chemical Threats,” US Senate Committee on Environment and Public Works, July 31, 2013. See page 4 of the text. Testimony begins at 1 hour on the webcast and response to questions at 1 hour 30 minutes.

Letter of Support from SRRTTF to EPA for participation of Rick Eichstaedt on the Small Business Advocacy Review Panel

Letter of Support from SRRTTF to EPA for participation of Doug Krapas on the Small Business Advisory Review Panel

PCB Rule Revision Request: July 15, 2013

Center for Justice Blog

“PCBs, or polychlorinated biphenyls, are one of the biggest threats to water quality and environmental and human health in the Spokane River.  Essentially banned for production in the U.S. in 1979 under the Federal Toxic Substances Control Act (TSCA), they continue to be one of the biggest areas of focus for Spokane River stakeholders, and the problem partially lies in a regulatory loophole.  Spokane Riverkeeper is working to address this, a focus that could have nationwide impact. . . .” click here for more.


ECOS Presentations: August 28, 2012

Final Approved ECOS Resolution: August 28, 2012

Revised ECOS Resolution: September 2, 2015

Waterkeeper Letter of Support for ECOS Resolution: September 7, 2012

US EPA Response to Spokane Riverkeeper, October 5, 2012