Distributed Wastewater Treatment System Permits
CS/HB 645 creates a new general permit pathway for replacing an existing onsite sewage treatment and disposal system with a distributed wastewater treatment system (DWTS), under specified conditions. The bill defines a DWTS as an integrated system using one or more remotely operated distributed wastewater treatment units (DWTUs), and defines a DWTU as an advanced closed-tank onsite wastewater system designed to meet secondary treatment standards and remove at least 80 percent of total nitrogen before discharge to a subsurface application system.
Under the bill, if the permittee owns and operates the system, the Department of Environmental Protection may grant a general permit for the replacement project. Once the permit is obtained, installation of each DWTU may proceed without further department action if the permittee files a notice at least 30 days before installation and certifies that a Florida-registered professional designed the unit in compliance with applicable rules. The bill also sets technical and operational conditions, including capacity limits, setback and groundwater separation requirements, legal access for maintenance and removal, monthly effluent compliance sampling, and prohibitions on causing surface saturation, wetland impacts, or water-quality violations.
The bill amends s. 403.814, Florida Statutes, by adding a new subsection governing general permits for distributed wastewater treatment systems. It creates a streamlined permitting process for certain onsite wastewater replacements, while preserving regulatory oversight through design certification, performance standards, monitoring, reporting, inspections, biosolids management, and compliance with DEP and state water-quality rules. The measure primarily affects permittees, wastewater system owners/operators, licensed professionals, and DEP’s permitting and oversight responsibilities.
The available voting history suggests generally favorable support for the bill. It passed the House Natural Resources & Disasters Subcommittee unanimously 17-0 and then advanced through the House State Affairs Committee by a strong margin of 21-2. No committee transcripts were provided, so there is no recorded discussion to indicate broader debate, but the vote pattern suggests the bill was viewed positively overall, with only limited opposition at the later committee stage.
The main points of potential contention are the reduced permitting burden and the reliance on permittee self-notification and ongoing electronic/remote oversight rather than case-by-case department approval for each installation. Concerns could also center on environmental and public-health safeguards, including groundwater separation, setbacks, monthly sampling, and whether distributed systems can reliably avoid impacts to wetlands, surface waters, and water quality. The two dissenting votes in the House State Affairs Committee indicate some disagreement, likely over regulatory streamlining versus environmental oversight, though no transcript is available to identify the specific objections or sponsors’ responses.