Dodge County septic services.

Dodge County administers the only septic (SSTS) program in the county; MPCA's 2025 annual report lists no separate city or township program. Your permit runs under the county's own SSTS ordinance — required by Minn. Stat. § 115.55 and allowed to be stricter than the state rules — and the county must give you a written list of any differences from those rules on request (subd. 2(c)); ask before designing. The report lists the county among the 59 requiring a compliance inspection at property transfer: expect the system checked when you buy or sell.

Seasonal saturation covers Dodge County, on 90.2% of rated soils, putting 92% of rated ground in the very or extremely limited classes for a conventional trench against 39.6% for a mound -- the mound is the workhorse design here. The DNR karst inventory maps about 120 sinkholes and stream sinks in the county as well, so thin-cover carbonate areas add bedrock and sinkhole checks to the water-table question.