Engineering and technical information for construction or expansion

Muddy construction site with large equipment and worker standing on edge of a circular concrete ringThe MPCA's technical review and approval process for wastewater treatment facilities (WWTF) confirms that proposed WWTF projects will comply with state permits and rules and recognized engineering practices, and meet reliability criteria. To speed the review and approval of your design documents, please complete the applicable checklists from the list below and submit them with your plans and specifications.

Engineering/technical publications


Large wastewater pond with rock lined bank

Mechanical treatment process design checklists

Aerial view of a wastewater treatment facility surrounded by farm fields

Preliminary treatment

Primary and secondary treatment

Tertiary treatment


Municipal biosolids treatment and solids handling

Municipal land treatment: LSTS and RIB

Large subsurface treatment systems (LSTS)

Rapid infiltration basins (RIB)