Last Updated: March 13, 2026
Community waterworks must distribute an annual drinking water quality report, known as the CCR, to their customers and to the Office of Drinking Water, by July 1st each year. Updated guidance on optional electronic delivery can be found in the CCR Electronic Delivery Guidelines and updated guidance on CCR Preparation can be found in the Preparation Guidelines. The Office of Drinking Water will review draft CCRs sent to field offices before May 1.
The deadline for wholesalers to provide their CCR information to their consecutive waterworks is April 1st each year.
Each Community Waterworks must certify to the Office of Drinking Water how and when the CCR was distributed. Certifications must be submitted to the Office of Drinking Water by October 1st each year. Here is the link to the CCR certification form
For more information, visit our CCR webpage here.