EPA Approves Washington's Updated Water Quality Assessment Submittal and 301(d) List

Published Jan 10, 2013

The U.S. Environmental Protection Agency (EPA) Region 10 in Seattle has reviewed Washington’s latest Water Quality Assessment submittal and has approved the Section 303(d) List (Category 5 waters).  Washington is required to assess its waters periodically to meet requirements of sections 303(d) and 305(b) of the Clean Water Act, and is required to submit the results to EPA as an “integrated report.”

This Assessment is based mainly on new, readily available, water quality data for marine waters. Data for fresh waters is now being assessed for the next listing cycle, which is expected to be available for the public to review in the fall of 2013.  For more information, contact James Tupper at tupper@tmw-law.com.

  • To view the 2012 EPA-approved Water Quality Assessment on Ecology’s website, click here.