Soil Tester

The Electronic Safety and Licensing Application (eSLA) is now live for Soil Tester. Public Lookup is also live for this program in eSLA.

Every first-time eSLA user must create a new account by clicking one of the two options under the "New Users" heading on the leftOnce you have created your account, you will be able to log in under the "Existing Users" heading on the right. Visit to get started.

License Information

Per Wis. Admin. Code § SPS 305.33, no person may conduct soil evaluations relative to the discharge or disposal of liquid domestic wastes into the soil unless the person holds a certification issued by the Department as a certified Soil Tester.

A certified Soil Tester who, as an employee of a local governmental unit, is responsible for administering regulations governing private onsite wastewater treatment systems may not provide soil evaluations relative to the design, installation or maintenance of private onsite wastewater treatment systems within the boundaries of the local governmental unit and adjacent local governmental units.

Soil Tester Online Application via eSLA 

Application for Licensure

3099Application for Soil Tester Certification
3073​Fax Payment Form

Reinstate a Soil Tester Certification that has been Expired more than 4 Years

Submit an application, supporting documentation and fee:

  • Application for Soil Tester Certification (Form #3099)
  • $135.00 total fee ($35.00 application fee, $75.00 exam fee, and $25.00 late renewal fee)

Renewal Information


Renewal Methods

Department of Safety and Professional Services

Trades Credentialing Unit
PO Box 78780
Milwaukee, WI  53293-0780


If you have questions regarding your renewal, please email

When mailing your renewal, please allow up to 21 calendar days [per Wis. Admin. Code SPS 305.04 (1)] from the date your payment is processed to receive an update regarding your renewal.