Aerobic Treatment Unit (ATU) Systems
An overview of approved aerobic treatment units and manufacturers. The best resource for the exhaustive list is the Florida Department of Environmental Protection.
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Reference only: Approved-component lists are sourced from the Florida
Department of Environmental Protection and may not be exhaustive. Always verify with FDEP
before specifying components for permitted work.
Aerobic Treatment Unit (ATU) Systems
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Frequently Asked Questions
What type of drainfield should be used with an ATU?
It is recommended to speak with the vendor about their recommendation when purchasing the unit. Both drip tubing and conventional drainfield material may work depending on the manufacturer.
Who services the ATU after installation?
Required service by the installer is dependent on the county and their licensure to act as a maintenance entity.
Is an ATU more expensive than a conventional septic system?
Yes, ATUs typically have a higher initial installation cost. They also require electricity to run and have ongoing maintenance costs for servicing, which are not typically associated with standard septic systems.
Helpful Links
- Contractor ATU Training (Florida Onsite Wastewater Association) myfowa.com
- Requirements for Aerobic Treatment Unit (ATU) Approval in Florida floridadep.gov
- BMAPS and Alternative Restoration Plans OSTDS Requirements fdep.maps.arcgis.com
Notes
- Component listings are compiled from the Florida Department of Environmental Protection.
- This list may not be exhaustive — always cross-check with FDEP before specifying components for permitted work.
- Manufacturer details, model numbers, and approval status may change without notice.