Soil Classifiers in Douglas County

Soil Evaluation Requirement

• All permit applications for subsurface seepage systems must be accompanied by a soil evaluation. Soil evaluations must be conducted by a Certified Professional Soil Classifier (CPSC) or an Illinois licensed professional engineer (ILPE).

• For a complete list of Certified Professional Soil Classifiers in Illinois, you can visit https://www.illinoissoils.org/services/findcpsc/

• In previous years, percolation tests have been used. Per Illinois Private Sewage Disposal Code updates, percolation tests are no longer recognized. A soil evaluation from a CPSC or ILPE.