Contact EPA Pacific Southwest Water Division
Pacific Southwest, Region 9
Serving: Arizona, California, Hawaii, Nevada, Pacific Islands, Tribal Nations
State and Local Water Resources
All links in this section exit EPA. 
Arizona
- Arizona Department of Environmental Quality (ADEQ),
Phoenix Division of Water Quality (602) 207-2305
California
- Aquatic Bioassessment Workgroup
- Coastal Commission
- Coastal Conservancy
- Department of Fish and Game
Sacramento (916) 653-7664
To report poaching and pollution (888) 334-2258 - Department of Health Services (Drinking Water)
Sacramento (916) 323-6111 - Department of Water Resources (Water Supply)
Sacramento (916) 653-6192 - Environmental Protection Agency
- Environmental Resources Evaluation System (CERES)
- Information Center for the Environment - U.C. Davis
- Regional Water Quality Control Boards
- Resources Agency
- San Francisco Estuary Project (ABAG)
Oakland (510) 622-2465 - Southern California Coastal Water Research Project
- State Water Resources Control Board
Sacramento (916) 341-5800
Water Quality Information (916) 341-5455
Clean Water Programs Information (916) 341-5700
Water Rights Information (916) 341-5300
Nevada
- Bureau of Safe Drinking Water
Carson City (775) 687-9520
Las Vegas (702) 486-2850 - Department of Conservation and Natural Resources, Division of Water Planning
Carson City (775) 687-4380 - Division of Environmental Protection
Carson City (775) 687-4670
Hawaii
- Department of Business, Economic Development and Tourism - Planning
- Department of Health
Honolulu (808) 586-4400