Malfunctioning septic systems can contaminate groundwater and surface water, potentially affecting individuals as well as the environment.
Explore these onsite (decentralized) wastewater resources for environmental health professionals from CDC and partners.
Local Board of Health Guide to On-Site Wastewater Treatment Systems pdf icon[PDF – 933 KB] National Association of Local Boards of Health, NALBOH) – Learn about the role of local boards of health in effective on-site wastewater treatment programs (produced in collaboration with CDC)
Septic Systems Outreach Toolkitexternal icon (EPA) – Find materials, case studies, and resources to help promote homeowner education on the importance of septic system maintenance.
book icon Wastewater Fact Sheet pdf icon[PDF – 261 KB] (NALBOH) – Read about board of health actions related to wastewater.
Wastewater Management – Read an overview of how land use decisions related to wastewater management affect water quality and public health.
Environmental Public Health Online Courses (EPHOC) – Access comprehensive online/on-demand package of courses for environmental public health practitioners including a module on wastewater
ballot check icon Consortium of Institutes for Decentralized Wastewater Treatmentexternal icon – Find training, checklists, graphics, and other resources from educational institutions collaborating on decentralized wastewater training and research efforts
Healthy Housing Reference Manual – Find information on the impact of housing on health and safety including a chapter on onsite wastewater treatment
Wastewater Publications – Explore our wastewater publications
U.S. Environmental Protection Agency
- Septic (Onsite/Decentralized) Systemsexternal icon
- Technical Information about Septic Systemsexternal icon
- Office of Wastewater Management (OWM)external icon
Onsite Sewage Treatment Programexternal icon (University of Minnesota)
Onsite Wastewater Systemsexternal icon (U.S. Geological Survey)