Environmental Services

Environmental Services

Tim Brown - Director

The St. Tammany Parish Department of Environmental Services is responsible for providing the control, monitoring and inspection of sewerage and water systems and environmental services including the litter abatement program.

Sewerage Inspection Permit Program - Update on Sewerage Permit Fee - Starting August 11, 2022
**As of August 11, 2022, the sewerage system inspection permit fee is $100.00.**

New applications along with a check or money order payable to St. Tammany Parish Government in the amount of $100.00 may be mailed to us at:

The Department of Environmental Services
P.O. Box 628
Covington, Louisiana 70434

Or, the application and payment can be placed in one of our Department of Utilities drop boxes located at:

350 North Military Road, Slidell; and,
21454 Koop Dr., Mandeville (next to the pavilion)

Download the application here

If you have questions or need further assistance, please email us at This email address is being protected from spambots. You need JavaScript enabled to view it.

The Department of Environmental Services is responsible for the following:

  • The enforcement of Parish regulations that require the establishment of a central water system for all new subdivisions that have fifteen or more lots which are less than five acres each.                                      
  • The implementation and enforcement of a more stringent review process for the provision of sewage treatment and water for commercial development and land use (zoning) changes.                                      
  • The issuance of permits and the conduction of inspections of on-site wastewater treatment systems.

Important Information:



Contact Us

  • Administrative Complex
    21490 Koop Dr.
    Mandeville, LA 70471

    Hours of Operation:
    Monday through Friday
    8:00am to 4:30pm