California Water Accounting, Tracking, and Reporting System (CalWATRS)

• CalWATRS Registration is Now Open!
  Please use this link to access CalWATRS: calwatrs.waterboards.ca.gov/portal.
  Note: You can now create a CalWATRS account, but you won't be able to begin reporting until you receive a personal identification number (PIN) from the State Water Board.
• PINs Will Be Mailed in Mid-October
  The State Water Board will begin mailing PINs in mid-October. If you manage multiple water rights, you may receive multiple PINs (in one or more letters).
• All Reporting Must Be Completed in CalWATRS – eWRIMS is Closed
  Beginning this year, annual reports must be filed through CalWATRS. The previous platform, eWRIMS, is no longer available.
• eWRIMS Usernames and Passwords Don’t Work for CalWATRS
  CalWATRS accounts require a new username and password. Your eWRIMS username and password will not work in CalWATRS.
• Creating Your CalWATRS Account
  To create a CalWATRS account, you’ll need to enter a valid email address, choose a password, and set up two-factor verification for added security.
• Migrating Your Water Right Records
  Before you can report in CalWATRS, you need to link your water right records to your CalWATRS account. This is a one-time process called records migration that uses the PINs discussed above. PINs will be mailed beginning in mid-October. To migrate all your records, you'll need all your PINs. CalWATRS will guide you through this process.
• Managing Multiple or Complex Water Rights
  If you manage a lot of water rights or have a complex portfolio, please contact us before setting up your CalWATRS account. We'll work with you to ensure your account is configured correctly. This helps prevent issues with records migration and ensures a smoother experience. Email us at CalWATRS-help@waterboards.ca.gov to schedule an appointment.
• For Businesses or Government Agencies
  If you are part of a business or government agency, you will be able to create an "organization" within CalWATRS. This feature allows multiple staff or representatives to create their own accounts that can access and manage the organization's water rights. Information about creating organizations in CalWATRS will be added soon.
• Public Outreach & Support
  The State Water Board will hold public workshops and informational meetings to help users get started with CalWATRS. Events details will be posted in the "Workshops & Meetings" section of this page as they are scheduled.

Stay informed and get hands-on help with CalWATRS. Below is a list of upcoming events where the CalWATRS team will present, demonstrate system features, and offer direct assistance to water right holders and agents.

CalWATRS In-Person Workshop - Adin, CA

• Date: November 5, 2025
• Time: 12:00 PM - 4:30 PM
• Location: Adin Community Center, Adin, CA
• Hosted by the Cattlemen's Foundation, California Cattle Council, and the University for California Cooperative Extension, this in-person workshop will feature CalWATRS demonstrations and individual support for water right holders. Register Here.

CalWATRS Virtual Webinar - Association of California Water Agencies (ACWA)

• Date: November 6, 2025
• Time: 11:00 AM
• Format: Online (Zoom)
• Hosted by ACWA, this webinar will feature a comprehensive walkthrough of CalWATRS. Register Here.

CalWATRS Virtual Public Workshop

• Date: November 12, 2025
• Time: 1:00 PM
• Format: Online (Zoom)
• CalWATRS Public Workshop Notice

In-Person CalWATRS Meeting - Ukiah, CA

• Date: November 19, 2025
• Time: 8:30 AM
• Location: Ukiah, CA
• Hosted by the Mendocino County Russian River Flood Control District and Mendocino County Farm Bureau, this in-person meeting will include a presentation by the CalWATRS team and one-on-one assistance for water right holders navigating the new system. Details will be posted soon.

CalWATRS In-Person Office Hours - Modesto, CA

• Date: December 3, 2025
• Time: 10:00 AM - 2:00 PM
• Location: Stanislaus County Farm Bureau Boardroom at 1201 L. Street, Modesto, CA 95354
• Hosted by Stanislaus County Farm Bureau, these in-person office hours will include one-on-one assistance for water right holders navigating the new CalWATRS system. Open to the public and no registration required.

CalWATRS Public Event - December 9, 2025

• Details for this event are being finalized. The CalWATRS team plans to provide hands-on support to help water right holders sign up and begin using the system. Stay tuned for location, time, and format.

Host or Request an Event
If you would like the CalWATRS team to attend or host an event in your area, please email CalWATRS-help@waterboards.ca.gov.

• UPWARD, Updating Water Rights Data for California
• Telemetry Pilot Project
• Water Rights Annual Reporting
• EWRIMS, Electronic Water Rights Information Management System