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We can't wait to get started on your project! Big or small, we can do it all. Get in touch with our designers for a custom project quote today!

Our Services Include

• Septic system design

• Perc testing

• Site and soil evaluations

• Septic system consulting

Serving all of Clark, Cowlitz, Lewis, Skamania, and Klickitat counties.

Important Links

McNair Septic Design & Consulting

PO Box 183
Brush Prairie, WA 98606

360 907-1576