National Organizations
- WERF – Decentralized Water Resources Collaborative
- National Onsite Wastewater Recycling Assn. (NOWRA)
- National Environmental Health Association
- National Association of Wastewater Technicians
- Environmental Protection Agency
- National Ground Water Association – NGWA’s Private Well Owner Hotline at 855 420.9355 (855-H20-WELL)
Colorado Organizations
- Colorado Dept. of Public Health and the Environment – Water Quality Control Division (CDPHE-WQD)
- Colorado Environmental Health Association
- Colorado Rural Water Association
State Organizations