Onsite Sewage Treatment Program (OSTP)

A group of people outside standing over a soil pit.
Wooden cabin in a conifer forest next to a lake.
Architect working on construction blueprint in office.
Magnified image of the coronavirus.

The Onsite Sewage Treatment Program (OSTP) protects public health and the environment by improving wastewater treatment through research-based workshops, as well as outreach to homeowners, small communities, professionals and policy-makers. This program is part of the Water Resources Center

Resources for SSTS professionals

Resources for homeowners