American Water Works Association (AWWA)
Home Page

US Environmental Protection Agency (EPA)
Home Page
Drinking Water
Water Pollutants
Ground Water
Water Quality Monitoring
Proposed Oregon Water Quality Standards

Center for Disease Control and Prevention (CDC)
Home Page
Drinking Water Quality
Well Water Quality

USGS National Water-Quality Assessment Program (NAWQA)
Home Page

Oregon DEQ Water Quality Program
Home Page
Water Quality Standards
Drinking Water Protection Program

U.S. Geological Survey (USGS)
Home Page
Water Resources of Oregon

Oregon Water Resources Department
Home Page

Oregon Department of Human Services
Home Page

Reference: University of Nebraska