St. Louis Region
Eastern Ozark karst brings sinkholes and septic questions
Rural Jefferson County sits on the eastern edge of the Ozark karst, so sinkholes, caves, and septic-in-karst questions matter for land buyers outside the cities.
Parts of rural Jefferson County sit near the eastern edge of the Ozark karst region, a limestone landscape with sinkholes, caves, and springs. For rural land that adds two practical questions: whether a parcel has mapped sinkhole or karst features that affect drainage and building, and how wastewater is handled, since many rural homes use onsite septic systems and karst makes groundwater protection more important. Missouri DNR’s geological survey covers karst and sinkholes. For an individual home’s septic system, the state Department of Health and Senior Services sets the minimum standards, and in most counties the local health department issues the permit. Check with both the geological survey and your county health department before buying rural acreage.
References
Where this fits: this note belongs to Jefferson County. See every local note for the county on its page.