Brown Precast is your one stop shop for septic tanks and all septic system accessories in Minnesota, North Dakota, and South Dakota.


Brown Precast is a family owned business in its 5th generation and has been manufacturing concrete septic tanks for over 30 years and other precast concrete products since 1922.

We are now an exclusive manufacturer for the Redi-Rock Retaining Wall System and for PoleBase Precast foundations.