Conventional systems gives you an overview of the components that make up a conventional septic system, and some of the factors that affect the design and longevity of conventional systems. Soil and site characteristics gives an overview of the factors that determine whether or not a soil is suitable for septic. Soil suitability for septic discusses soil surveys, which can give you an idea whether or not a site has soils that are suitable for conventional septic systems, mound septic systems, or no septic system.
Links are available to counties that have digital soil survey data available online.
Additional links will be added as other county data become available. Designing a new system provides information about design considerations and includes an interactive computer program you can use to actually design a system. Maintaining your system tells you the basics of septic system maintenance. System alternatives describes non-conventional system designs such as recirculating sand filters, constructed wetlands, and drip irrigation. Protecting your drinking water gives the basics of how to prevent your well from becoming contaminated by wastewater and other contaminants.