WRIA 1 (Nooksack) Adjudication
WRIA 1 (Nooksack) Adjudication
On December 3, the Whatcom County Superior Court held a hearing for the WRIA 1 adjudication. The judge authorized Ecology to begin mailing the final summons and court claim form to all affected water users. He also set a due date of May 1, 2026 for filing. The court will include their own information sheet as part of the mailing. We will share the court claim form with the public and post it on this website once we have ensured all the filing documents are fully aligned.
Ecology plans to start mailing the summons and court claim form in early 2025. We will post on our website when the mailing date has been determined. Remember, no action is required until you receive the certified mail.
The next hearing, focusing on procedural and administrative details about the mailing process and claims filing, will be in January 2025. Court hearings are open to the public, but you do not need to attend them to claim a right to use water.
For more information, visit the Water Adjudication Case Documents and Docket | Whatcom County, WA - Official Website
Check out our new WRIA 1 web map tool!
This interactive map is designed to assist anyone involved in the Nooksack adjudication by helping them locate the water rights associated with their property.
The map provides direct links to water right documents and the county assessor’s website for detailed parcel and property information. It also includes various sources of aerial imagery, so that users can research historical use. If you need assistance, please refer to the provided instructions or contact us.
This tool will be particularly helpful for water users when completing the court claim form.
Get information...
Where is the Nooksack watershed?
WRIA 1, often called the Nooksack area, includes land surrounding the Nooksack River system. The Nooksack River mainstem is fed by the North, Middle, and South forks of the Nooksack River. WRIA 1 includes various other streams such as the Lummi River and Dakota, Fishtrap, Bertrand, TenMile, and Whatcom creeks.
This adjudication will include all areas of WRIA 1, regardless of whether they are directly connected to the Nooksack River system. Use our Watershed look-up tool to learn if your address is within WRIA 1.
WRIA 1 Nooksack Watershed map (click to enlarge)
What is adjudication? [əˌjo͞odəˈkāSHən]
Adjudication is a legal process. The process does not involve any claims for damages or money, but instead affirms current water rights. It is the foundation for resolving conflicts and competition over water resources by establishing who has the right to use water, in what quantity, and in what order of seniority.
In adjudication, the local court will review all water uses in an area. The process begins by serving a summons to all property owners outside the service area of public water supply systems.
A video describing the WRIA 1 adjudication process.
More about adjudication
In the upcoming months, Ecology will send forms by certified mail to all property owners in Water Resources Inventory Area 1 (WRIA 1) who are within the area of a recorded water right or outside a public water system service area. This does not include people who only use water from a public water system like a city connection.
If you receive a form, our records show you may be a water rights holder or claimant. You’ll fill out the form about your water use and submit it to the court in person, by mail, or online within one year of receipt.
In the following years, the Whatcom County Superior Court will review the forms and inventory all legal water rights. The adjudication process will determine whether each water right on a source is legal, how much water can be used, and its priority during water shortages. Then, Ecology will issue adjudicated certificates for all these uses.
Why do we need adjudication in WRIA 1?
Ecology is responsible for managing the water resources of the state. This includes issuing permits for the right to use water and protecting instream resources for the benefit of the public. WRIA 1 provides critical habitat for endangered and threatened species, but it faces growing pressure from water users and uncertainty about legal water use.
Due to the changing climate, our region is experiencing warmer temperatures and drier summer conditions compared to historical norms. Snow that used to regularly build our mountain snowpack for spring melts now falls as rain in the winter. Much of the area's streams and rivers are dependent on melting snow in the late spring and summer months when the water demand is the highest. Unfortunately, the snow that used to provide natural water storage is no longer reliable.
Over the years, state and local leaders have worked hard to resolve disputes over WRIA 1 water. This has involved rulemaking, county growth management planning, and enforcement. But years of work has failed to reach a full solution. In 2019, the Legislature funded an Ecology assessment of the statewide need for adjudication, and Ecology identified WRIA 1 as a top priority area. As recommended in this report, the Legislature has since provided funding for the adjudication to be filed.
Over time, the adjudication will make it easier for farmers and others to identify legal water rights to buy, sell, or lease through water banks. Once there is a court decree determining all the legal rights to use water, negotiating changes or mitigation will be easier. Additionally, the adjudication is expected to protect streamflows by clarifying legal stream protections and quantifying the legal quantity, place, and season of uses of valid water rights and vested claims. Right now, this information is very limited. Adjudication will create the first definitive inventory of WRIA 1 water rights for the future.
Ultimately, adjudication will enable reliable water management and provide predictability and consistency that will serve the local economy, communities and environment.
Want to know more about this adjudication?
- View a detailed map of the watershed
- Focus on: Preparing for Adjudication (pdf)
- WRIA 1 Webinar video (Jan. 2023)
- Questions about Nooksack adjudication? (blog post, Jan. 2022)
- Adjudication in the Nooksack Basin (blog post, Nov. 2020)
- Next steps in managing water rights (blog post, Oct. 2020)
- See all our blog posts about the Nooksack adjudication
Join our email list for updates about the WRIA 1 adjudication.
Questions about water right documents? The fastest and easiest way to get information about water right documents at your property is to call or email us. Leave a message at 360-255-4406 or email WRadjudications@ecy.wa.gov. Make sure to include your name, address of your water usage, and an email or phone number for us to contact you. You can also use the Water Rights Search database.
Want to hear more? We understand this is a complex process. Contact us if you'd like us to speak to your group or association.
For media inquiries, please contact Jimmy Norris, Water Resources Communications Manager at jimmy.norris@ecy.wa.gov or (360) 480-5722.
Contact information
Robin McPherson
Adjudications Manager
WRAdjudications@ecy.wa.gov
360-255-4406 – leave a message
Sheila Coughlan
Environmental Planner - Adjudications
sheila.coughlan@ecy.wa.gov
564-233-1879