Over 4,600 service area boundaries that represent approximately 90% of California's population have been collected by the WBT through crowdsourcing efforts.
The WBT data have been accessed by over 6,800 users and supported extensive public health activities in California by a range of organizations, including:
State agencies
- California State Water Resources Control Boards, Division of Drinking Water
- Food and Drug Branch, California Department of Public Health
- Office of Environmental Health Hazard Assessment, Cal/EPA
- Office of Planning and Research
Regional and local agencies
- Central Coast Region Water Quality Control Board
- Inyo County Local Primacy Agency
- Los Angeles County Oral Health Program
- Tulare County, Office of Emergency Services
- Upper Kings Basin Integrated Regional Water Management Authority
Community-based and non-governmental organizations
- Comite Civico del Valle
- Community Water Center
- Pacific Institute
Universities
- University of California at Davis
- University of California at Los Angeles
- University of Southern California