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June 23, 2023

Washington Department of Ecology has issued a new permit to control nitrogen at 58 treatment plants, including Bremerton's Westside Wastewater Treatment Plant. Ecology says the upgrades could increase sewer utility fees. Photo: Washington Department of Ecology">

Wastewater fee study reveals hardship for low-income households

Low-income households may need financial help to address the impact of rising wastewater bills, according to a study of current and projected sewage treatment costs published last month by the Puget Sound Institute. The study was initiated in support of the Marine Water Quality Implementation Strategy, a state and federal recovery plan addressing water pollution […]

September 12, 2022

An image of brackish water mixing in the Salish Sea as shown by the Salish Sea Model. Image courtesy of the Salish Sea Modeling Center.">

Upcoming workshops on tools to evaluate water quality and biological integrity 

New event: More than 130 researchers, scientists, modelers, and other experts attended our first workshop in July on The Science of Puget Sound Water Quality. The discussion continues with two interrelated workshops focusing on scientific tools for evaluating marine conditions and species health. Join us:  September 29th from 8 – 10 AM PT for Tools to […]

February 12, 2021


New sewage-treatment permit would be a step to curbing nitrogen in Puget Sound

In an effort to stem the flow of excess nitrogen into Puget Sound, Washington Department of Ecology has proposed a new type of permit for some 60 sewage-treatment plants operating throughout the region. The flexible permit, called the Puget Sound Nutrient General Permit, aims to hold nitrogen releases close to or below their current levels […]

March 7, 2018

Core sample from Hood Canal showing a cotton-like mat of Beggiatoa bacteria extending above the seafloor. Oct 2006. Photo: Matt Lonsdale">

Does Puget Sound need a diet?

As the region’s population grows, scientists say we can expect to see increasing amounts of nitrogen and other elements flowing into Puget Sound. Known as “nutrients” these elements are naturally occurring and even necessary for life, but officials worry that nutrients from wastewater and other human sources are tipping the balance. That could mean big […]