The Wastewater Information System Tool (TWIST) is downloadable, user-friendly management tool that will allow state and local health departments to effectively inventory and manage small wastewater treatment systems in their jurisdictions. It is designed to track information related to homes and facilities served, permits, site evaluations, types of systems, inspections and complaints.
You may need a PDF reader to view some of the files on this page. See EPA’s About PDF page to learn more.- TWIST User Presentation (PDF)(67 pp, 4 MB)