On-Site Sewage Facilities Program (OSSF)
The term "on-site sewage facility" (OSSF) refers to all types of systems used to dispose of sewage on a single property. A conventional septic system is just one of several systems available. The type of system suitable for a property depends on the soil type, site characteristics, physical features, and the property's intended uses.
Program Information
The OSSF program serves as the designated representative for McLennan County to implement and enforce the rules adopted under the Texas Health and Safety Code, Chapter 366, and Title 30 TAC, Chapter 285, On-Site Sewage Facilities. Through an agreement between the City of Waco and McLennan County, the Health District administers the program for McLennan County, the cities in McLennan County, and the City of Waco. The division is also responsible for investigating and resolving complaints regarding on-site sewage facilities. The OSSF program is comprehensive because its goal is to eliminate and prevent health hazards and pollution to our county’s sewage disposal systems.
Contact Us
Phone: (254) 299-2473
Fax: (254) 750-6619
Address: 401 Franklin Avenue - Mae Jackson Development Center - 1st Floor
Hours: 8 a.m. - 5 p.m., Monday - Friday
Fee Schedule
Fee Schedule Effective October 1, 2026
Permit & Inspection
Includes application, permit, inspections, and notice of approval.
Conventional Septic System
- Single-Family Residences: $510.00
- Commercial/Non-Single-Family: $610.00
Aerobic Septic System
- Single-Family Residences: $710.00
- Commercial/Non-Single-Family: $810.00
Septic System Minor Repairs
Increasing, lengthening, or expanding the treatment (tanks) or disposal system (drain field/disposal area), spray area relocation, or a single tank replacement, such as a collapsed pump tank.
- Single-Family Residences: $285.00
- Commercial/Non-Single-Family: $310.00
$10.00 Mandatory fee required on all permits, new or repairs. Fees collected are forwarded to the TCEQ Research Council. No portion of the fee is retained.
Septic System Failed/Reinspection Fees
- Single Family Residences: $200.00
- Commercial/Non-Single-Family: $300.00
- Design Resubmittal Fee: $100.00
Misc. Fees
- Subdivision Plat Review Site Evaluation: $100.00
- RV/Mobile Home Park Supplementary Fee: $200.00
- Partial - Tank Inspection Fee: $100.00
- Annual Aerobic Unit Maintenance Fee: $40.00
- Maintenance Provider Admin. Penalty Fee: $30.00