- Agencies and Associations
- American Water Works Association
- Kansas Department of Health and Environment
- Oklahoma Conservation Commission
- Oklahoma Department of Environmental Quality
- Oklahoma Rural Water Association
- Texas Commission on Environmental Quality
- U.S. DA Agricultural Research Service
- U.S. EPA Office of Water
- U.S. EPA Region 6 (serving Oklahoma, Texas and New Mexico)
- U.S. EPA Region 7 (serving Kansas)
- U.S. EPA Region 8 (serving Colorado)
- U.S. Geological Survey
- Information
- Coliform Sampling for Public Water Systems in Texas
- Disinfection of Individual Water Wells
- Drinking Water Testing Guide 1
- Drinking Water Testing Guide 2
- Drinking Water Wells
- Iron Bacteria in Water Wells
- Sulfur Bacteria in Drinking Water
- Ground Water Rule
- Total Coliform Rule
- TCR Handbook
- What is Ground Water?
- Water on Tap (what you need to know about drinking water)
- Water Quality Problems and Recommended Tests
