A soil evaluation is required before building a home that is not served by a municipal or centralized sewage treatment facility. A soil evaluation (sometimes referred to as a "perk test") is an assessment performed by a Sanitarian from Washtenaw County Environmental Health. This assessment determines a site's suitability for installing a new or replacement onsite sewage system.
Contact your Township office to determine if municipal sewage treatment is available. All building inspection agencies in Washtenaw County require either proof of municipal sewer connection or a sewage permit before building permits can be issued.
A soil evaluation must be completed and approved before you can apply for a sewage permit and begin constructing your sewage system
Please note that it is the responsibility of the contractor or owner to contact the MISS DIG notification system at 811 or 800-482-7171 and comply with all requirements of the MISS DIG Underground Facility Damage Prevention and Safety Act before starting any excavation work.