Bellingham Water Restrictions 2026

Bellingham is unusual among rainy Pacific Northwest cities in asking residents to follow a summer watering schedule, and the reason is the structure of its water supply. The City draws 100 percent of its drinking water from Lake Whatcom, a single natural lake of roughly 5,000 acres that also serves the Lake Whatcom Water and Sewer District, together supplying about 96,000 residents. With one source and no backup, summer demand spikes matter: average daily consumption climbs from a winter baseline near 10 million gallons per day to a summer peak near 15 million gallons per day, and the City estimates 80 to 90 percent of that 5 MGD increase is outdoor watering, of which roughly half is wasted to overwatering, evaporation and runoff.

To flatten that peak, Bellingham runs a voluntary summer watering schedule from June 1 to September 30. No address waters on Mondays, even-numbered addresses water Tuesday, Thursday and Saturday, and odd-numbered addresses water Sunday, Wednesday and Friday, ideally between 7 and 10 a.m. Bellingham belongs to the Whatcom Water Alliance, formed in 2008, which also includes Blaine, Everson, Ferndale, Lynden and Sumas plus six water and sewer districts. The Alliance promotes a common schedule, but enforcement differs by community: Lynden and Ferndale make their summer schedules mandatory, while Bellingham and most others keep theirs voluntary with no fines.

The statewide backdrop reinforces the conservation call. On April 8, 2026, the Washington State Department of Ecology, under Director Casey Sixkiller, declared a statewide drought emergency, the fourth consecutive year that all or part of Washington has been under a drought declaration. North Puget Sound snowpack, which feeds Whatcom County, sat near 76 percent of normal in mid-winter, materially better than the Yakima Basin's 36 percent. Because Bellingham relies on Lake Whatcom storage rather than snowmelt runoff, it is less directly exposed to snow drought, but multi-year precipitation deficits still justify the voluntary conservation request.

A separate, water-quality rule also shapes lawn care here. The City's phosphorus-free fertilizer ordinance prohibits phosphorus-containing lawn fertilizer for properties in the Lake Whatcom watershed, part of the Lake Whatcom TMDL implementation approved by the EPA in 2016, a roughly 50-year cleanup effort. That rule is about protecting the lake from algae-feeding nutrients, not about drought, but it applies year-round to watershed properties.

This deficit has accumulated over the current water year and represents a significant departure from historical averages for the Bellingham area. Water supply reservoirs and aquifer levels are below seasonal targets, prompting regional voluntary conservation guidance.