Onsite Sewage Treatment Program (OSTP)

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Wooden cabin in a conifer forest next to a lake.
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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