Starting Saturday, September 12, Whatcom County kicks off a nine-day celebration of local water resources with Whatcom Water Week, running through September 20. The event series is free, open to all ages, and spans communities across the region with events ranging from stream bug studies to behind-the-scenes tours of water treatment facilities.
What Events Are Happening and Where
Whatcom Water Week is organized as a community-wide educational campaign rather than a single gathering. Events are spread across multiple days and venues, giving residents flexibility to participate on their own schedule. Highlights include opportunities to study macroinvertebrates in local streams, which are tiny organisms like stoneflies, mayflies, and caddisflies whose presence or absence tells scientists a great deal about water quality. Participants can also sign up for tours of the city's water treatment plants, where staff will walk visitors through the process that turns Lake Whatcom water into safe drinking water.
Other events include waterfront storytimes along Bellingham Bay, habitat restoration demonstrations showing what revegetating a stream bank looks like in practice, and a peek behind the scenes at how a local museum manages its own water recycling. The full lineup of events, times, and locations is posted at WhatcomWaterWeeks.org.
Why Local Water Resources Matter So Much Here
Whatcom County's water story is genuinely complicated and consequential. Lake Whatcom, the sole drinking water source for more than 100,000 Bellingham residents, has faced persistent water quality challenges related to phosphorus loading, stormwater runoff, and shoreline development for decades. The city and county have invested substantially in reducing nutrient inputs to the lake, but the work is ongoing and closely watched by residents who understand what is at stake.
At the same time, the Nooksack River and its tributaries support five species of Pacific salmon, provide irrigation water for Whatcom County farms, and serve as a flood risk management challenge that the county is addressing with multi-million-dollar infrastructure projects. The river drains nearly 900 square miles of terrain from the slopes of Mount Baker to Bellingham Bay, making its health a matter of concern for every community in the county.
Groundwater is a third layer of the story, supplying private wells across rural Whatcom County and feeding the cold, clear tributary streams that juvenile salmon depend on during summer low-flow periods. The Whatcom County Health Department monitors groundwater quality and issues seasonal advisories when bacterial contamination is detected near agricultural areas.
Whatcom Water Week brings all of these threads together in an accessible, public-facing format. The goal is to connect everyday residents to the systems that deliver clean water to their taps, absorb their stormwater, and support the salmon runs that define the region's ecological identity.
How to Participate
Most events during Whatcom Water Week are drop-in and free, though some tours of water treatment facilities may require advance registration due to space constraints. Families with children are especially encouraged to attend the stream bug studies, which tend to be hands-on and memorable for young participants. Wearing clothes that can get muddy is recommended for any streamside event.
The Whatcom Water Week website is the best starting point to find the current schedule, confirm locations, and check whether registration is required for specific events. The full calendar runs from Saturday, September 12 through Saturday, September 20. For those who cannot attend in person, several participating organizations offer year-round volunteer and educational programming. More context on recent local environmental and conservation news is available in this earlier environmental coverage.
