A "septic tank system" is a subsurface wastewater system consisting of a settling tank and a subsurface disposal field. Septic systems are used when sewage treatment plants are not accessible. They safely treat and dispose of wastewaters produced in the bathroom, kitchen and laundry. These wastewaters may contain disease-causing germs and pollutants that must be treated to protect human health and the environment. Although septic systems are usually a permanent solution to wastewater treatment and disposal, they sometimes serve as a temporary solution until sewer lines are installed.

Water Quality is responsible for all permitting activities that require a septic tank system for wastewater disposal.

For Sites That Require Operation & Maintenance (O&M) Inspections, Please Select This Link

Please select the link above if you have received a postcard or letter from the Wake County Department of Environmental Services regarding your Type III B, IV, V, or VI existing system pump inspection.  Information located there will assist you in locating and maintaining a contract with a Certified Subsurface Wastewater Operator. 

To see information regarding the Wake County Environmental Services Subsurface Wastewater System Design Policy as pertains to PE Board Policy for On-Site Wastewater System Design, please select this link.

Rules and Regulations governing septic systems in Wake County include both the State rules and local regulations.

The Water Quality Division offers technical assistance to those designing septic and wastewater systems. There are different types of septic systems, including pump to conventional systems, pressure manifold systems, low-pressure pipe (LPP) systems and aerobic treatment unit (ATU) systems. These types of systems normally have pumps, electrical floats and controls, alarms or other mechanical parts that are sure to fail without maintenance. For this reason, state rules have specific maintenance requirements for a number of these systems.

Is your wastewater system malfunctioning and you need a repair permit issued? Please contact Environmental Services support staff at 919-856-7400 to start a repair request.

Have questions or need more information? Contact Kent Daeke, Onsite Wastewater Supervisor, at 919-856-7434.