Onsite Septic System Program

All work done to onsite sewage treatment & disposal system requires a permit from the Louisville Metro Department of Public Health and Wellness (LMPHW). 

New Installation

To install a new septic system, the following steps are required:

  1.  Submit a completed Application for Site Evaluation by email to [email protected] or by mail: LMPHW Attention: Onsite Program, 400 East Gray St 2nd floor, Louisville KY 40202
  2.  Submit payment of $375 via check payable to Louisville Metro Government or credit card by calling 502-574-6655
  3.  Once application and payment are submitted, contact septic installer to schedule site evaluation with LMPHW. Link to installer listing found below
  4.  LMPHW and installer will meet to complete the site evaluation 
  5.  LMPHW will complete the site evaluation and email it to applicant and installer 
  6. Installer designs system, submits drawings with grade shots to LMPHW 
  7. LMPHW reviews submission from installer 
  8. Applicant to submit $425 permit fee
  9. Once fee is received, an Onsite Sewage Disposal System Construction Permit is issues 
  10. Once onsite sewage disposal system is installed all components must be inspected prior to being covered with soil
  11. All cover soil must be approved prior to use to cover the system
  12. Alarm if applicable must be in place and functional before the onsite system can be approved.  

Building Plans Approved

Building/Construction plans cannot be stamped until an Onsite Sewage Disposal System Construction Permit has been issued.

  1.  Submit construction plans via the online permitting portal
  2. Pay $25 plan review fee – invoice sent by email
  3. If the proposed onsite system is designed appropriately for the submitted building plans, plans will be approved
  4. If the proposed onsite system is not designed appropriately, plans will not be approved, and the onsite system will need to be redesigned 


Septic System Inspections, Repairs or Alternations

 If looking for septic system location information, inspections, maintenance, repairs, or alterations, please contact a certified septic installer


Requests for Information

All requests for information on a septic system need to go through the Louisville Metro Government open records request portal. The following information should be included to better expedite your request:

  1. Address of Property
  2. Person Making Request
  3. Contact Information 
  4. Subdivision and lot number 
  5. Any Former Address (if applicable)
  6. Acreage of Property 

Fee Schedule

Site Evaluation


Onsite Sewage Disposal System Construction Permit Fee


Repair Permit Fee


Alteration Permit Fee


Building Plan Review Fee



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