Septic soil in Burleigh County, ND, by the numbers

Somewhat limited

In Burleigh County, ND, 55.5% of the surveyed land carries a "Somewhat limited" rating for a standard septic drain field. That's a middle reading: not the outright failure "very limited" soil produces, but not a clean pass either. Design changes often bridge the gap. Burleigh County covers 1,632.695 square miles and counts 103,107 residents.

This is a county figure, not a parcel figure

Burleigh County's rating is an average across the whole county, not a promise about any one lot inside it. A site-specific perc test, usually $750-$1,850, is what a health department will actually require before permitting a lot in Burleigh County.

System cost, conventional vs. engineered

Given Burleigh County's rating, plan for the engineered-system range rather than the conventional one. The engineered-system range, $10,000-$40,000 (mound or aerobic treatment), is the more realistic number to plan around, against $3,000-$8,000 for a conventional system on the rare lot that passes.

Where this sits nationally

Nationally, Burleigh County, ND is the 2,957-most-constrained of 3,058 rated counties for septic soil. Within North Dakota alone it ranks 48 of 53.

Related guides

How this rating is built, and its real limits · How a percolation test actually works