EPC details wetland delineation process, mitigation options and bank-credit limits
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Summary
EPC Wetlands Division staff explained how wetland boundaries are set under Florida Administrative Code 62-340, described mitigation options (on-site, off-site, bank credits), and told commissioners how Senate Bill 492 affects mitigation-bank credit release and out-of-basin purchases.
Kim Tapley, a member of the EPC Wetlands Division, told the Environment Protection Commission on Feb. 19 that wetland delineations are typically required for property transactions, proposed splits, or development proposals and are established using the three technical characteristics in Florida Administrative Code 62-340: wetland vegetation, hydrology and hydric soils. "Water is the driving force of wetlands," Tapley said, listing field procedures and noting staff complete a minimum of two data-form sets to document scientific observations.
Tapley explained the mitigation assessment uses three functional categories—location/landscape, water environment and community structure—and that mitigating projects must generally achieve no net loss of wetland function. Property owners can pursue on-site mitigation, off-site mitigation or purchase credits from mitigation banks. "Mitigation must be located within the same watershed as the wetland impact," Tapley said, while acknowledging statutory and program exceptions exist in limited circumstances.
Commissioner Bowles asked whether the county’s mitigation banks are reaching capacity and whether applicants must go outside Hillsborough County to obtain credits. Tapley said many banks in the Tampa Bay basin have credits queued for release but must meet certain bank milestones; she said Senate Bill 492 streamlines and speeds credit-release procedures and allows applicants to purchase credits in adjacent basins when no basin credits exist, subject to multiplier rules. "They have to use a 1.2 multiplier" for out-of-basin purchases, she said. When Commissioner Miller asked if development could be stopped if no credits were available, staff explained applicants can pursue adjacent basins and additional multipliers as a practical workaround.
Tapley highlighted mitigation examples used by developers, including a subdivision redesign that avoided a road through Bell Creek, and a completed on-site mitigation area built adjacent to Delaney Creek that was placed under a conservation easement and planted to restore functions. Tapley said the mitigation options aim to incorporate wetlands into design so projects minimize impacts and improve long-term resiliency.
The commission voted 7–0 to accept the Wetlands Division report. The clerk recorded the motion by Commissioner Bowles and second by Commissioner Miller.
