Day: June 3, 2025

Purpose: To distinguish the Regional Stormwater Management System (RSMS) framework (currently implementable and actively used by NST) from the Water Quality Enhancement Area (WQEA) framework (still under rule development), focusing on applicability, regulatory readiness, and credit generation mechanisms. 

Comparison Table: RSMS vs. WQEA

Feature	RSMS (Regional Stormwater Management System)	WQEA (Water Quality Enhancement Area)
Governing Rules	Chapter 62-330, F.A.C. + ERP Applicant’s Handbook Vol. I (Sec. 9.7.3)	Chapter 62-330, F.A.C. + ERP Applicant’s Handbook Vol. I + Chapter 62-332, F.A.C. (draft rule)
Regulatory Status	Fully authorized and in effect now	Rulemaking not yet finalized (est. late 2025)
Permitting Pathway	Environmental Resource Permit (ERP)	Environmental Resource Permit (ERP) with additional WQEA rules
Credit Availability	Available now via existing permitted RSMSs	Future—credits can be issued only after rule adoption + permit + construction + credit release
Treatment Type	Engineered stormwater ponds, e.g., technological enhancements	Natural systems, e.g., constructed wetlands, ecological enhancements
Use Cases	Off-site compensating treatment, ERP net improvement, and nutrient reduction standard	Off-site compensating treatment, ERP net improvement, and nutrient reduction standard  BMAP allocations (via Ch. 62-306)
Ownership	Public or private	Public or private
Land Type	Stormwater ponds from developed/urbanized parcels or transportation facilities	Natural or restored lands (may be co-located with wetland banks)
Service Area Determination	HUC-12 subwatershed; Smaller service areas	Requires detailed fate & transport modeling; Larger service areas
Locational Valuation Factor (LVF)	Not required within same HUC 12	Mandatory; applies to each credit trade
Credit Maturity	Immediate release with performance monitoring and contingency plan	Phased release with performance monitoring and site success

Common Features of Both Frameworks

Standalone ERP Permit: Each facility type is permitted as a discrete ERP project. 
• Excess Treatment = Credits: Credits are based on treatment beyond what’s required for the developed drainage area or based on water quality “lift” (determined like a mitigation bank – with success criteria and monitoring). 
• Defined Service Area: Credit use is restricted to a defined service area showing hydrologic connectivity. 
• Long-Term Assurance: Owners of an RSMS and WQEA must demonstrate perpetual maintenance, financial assurance, and responsible party designation. 
• Professional Operator: Must be a capable entity with performance verification protocols in place. 
• Tracking & Ledger: Both frameworks require a credit ledger that documents generation, allocation, and availability. 
• Use Restrictions: 
o May not offset localized water quality impacts 
o Not applicable to water quantity or floodplain requirements 
o Credits cannot double-count for ERP and BMAP reductions 

Use Case Guidance and Observation 

•Developers needing immediate nutrient credit solutions should turn to NST’s RSMS approach, which is fully actionable today. With the new stormwater rule deadline looming and more stringent performance requirements, the availability of off-site nutrient credits will be essential to avoiding costly development impacts or time-consuming project redesigns. 

The Seascape Resort undertook a forward-looking initiative to modernize its stormwater management infrastructure by implementing Continuous Monitoring and Adaptive Control (CMAC) smart pond technology. This innovative solution not only meets regulatory standards but also optimizes land use and enhances flood resilience.

Key Benefits Realized

1. Significant Pond Size Reduction

The application of CMAC technology enables the dynamic water level control of an existing stormwater pond, maintaining its stormwater management function with half the traditional size. This downsizing preserved valuable land for other uses without compromising performance. The existing pond size was reduced by 54%, resulting in 2.51 acres of additional developable real estate.

2. Enhanced Flood Protection

Despite the reduced pond size, the CMAC system provides full attenuation and flood protection. It does so by reviewing real-time weather forecast data and intelligently releasing water ahead of large storm events, creating capacity when it is most needed. The system ensures compliance with local stormwater design standards and mitigates flood risk during high-intensity events.

3. Hurricane Resiliency

Engineered for extreme conditions, the CMAC system bolsters resiliency against large storm events such as hurricanes. Its predictive control algorithms adjust outflows in anticipation of weather changes, ensuring the infrastructure is primed for peak performance when disaster strikes.

4. 24/7 Monitoring and Automatic Control

The system features continuous remote monitoring and automatic control, allowing for hands-off operation and proactive stormwater management. The system also allows for human oversight and manual control when needed. Operators can oversee system performance in real-time, enhancing responsiveness and minimizing manual intervention.

5. Adaptive for the Future

The smart pond system is entirely configurable, designed to adapt to evolving environmental conditions or regulatory requirements. This future-proofing capability ensures long-term value and operational flexibility.

6. Reduced Peak Flows

Through real-time flow modulation, CMAC technology effectively reduces peak discharges, thus minimizing stress on downstream infrastructure and improving water quality outcomes.

Client Testimonial

“Implementing CMAC smart pond technology at Seascape has transformed our approach to stormwater management. We’ve reclaimed valuable land, strengthened our flood protection, and gained peace of mind knowing the system runs itself — all while preparing for the future. It’s been a game-changer for our resort.”

— Paul Davis, Director of Development, Seascape Resort