Perc and Soil Testing in Wisconsin

Before a new septic system can be permitted in Wisconsin, a certified soil tester evaluates the site. The tester digs soil pits or borings, records the soil layers, color and depth to groundwater or bedrock, and reports where a drainfield can go and how large it must be. The county reviews that report before it issues a sanitary permit.

The result shapes what kind of system a lot can support. Ask the tester when the excavator can get on site, whether the county needs to witness the pits, and whether the tester works with a designer you can use. The companies below do perc or soil testing for septic systems in Wisconsin.