Best Perc Test in Joliet, IL

What is a perc test and why do I need one in Illinois?

A perc test (percolation test) measures how quickly water drains through soil. It is required before installing any new septic system and is conducted under the oversight of your local board of health. State environmental regulations govern the soil evaluation and percolation testing process.

How much does a perc test cost in Illinois?

A perc test typically costs $500 to $1,500, including soil profile evaluation. Municipal fees for health officer oversight add $100-$400. Total costs vary based on regional regulatory requirements and professional standards.

What happens if my property fails the perc test in Illinois?

If conventional perc test results do not meet state standards, you may be able to install an alternative system (mound system, drip irrigation, FAST unit) if site conditions allow. In densely developed areas, failing lots may have no viable septic option, requiring connection to public sewer if available.

Who can perform a perc test in Illinois?

Soil evaluations and perc tests must be conducted by a Licensed Professional Soil Classifier (under the Soil Classifiers Licensing Act, 225 ILCS 722/), Licensed Professional Engineer, or other qualified professional approved by your local health department. The evaluation must be witnessed by a municipal health officer.