High-flow treatment, minimal headloss, and enhanced settling technology in a single structure

StormTrap announced today that SurgeSettler™, its new high-flow stormwater treatment device, has received verification from the New Jersey Corporation for Advanced Technology (NJCAT) and certification from the New Jersey Department of Environmental Protection (NJDEP).

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SurgeSettler™ combines high-flow treatment, hydraulic efficiency, and a compact footprint to support demanding commercial and industrial stormwater applications. Shown here integrated with a StormTrap detention system.

Through comprehensive testing at StormTrap’s state-of-the-art research and development facility in Morris, Illinois, SurgeSettler was tested at the highest flow rate ever attempted for a hydrodynamic separating device. Testing was conducted in accordance with ASTM test methods C-1745 and C-1746 to measure hydraulic characteristics and removal efficiency performance. SurgeSettler is NJDEP certified for 50% Total Suspended Solids (TSS) removal, with additional Sediment B testing supporting NJCAT verification for 80% TSS removal.

Built to treat large stormwater flows within a single structure, SurgeSettler features enhanced settling pack technology designed to increase treatment surface area and shorten particle settling distance. Internal flow-control components distribute stormwater evenly through the settling pack, promoting pollutant capture before treated water exits the system. The system is also designed to accommodate site-specific layouts, including side-outlet configurations.

SurgeSettler incorporates three access locations: the forebay, outlet bay, and a dedicated 2’ x 2’ maintenance opening through the center of the enhanced settling pack. The layout provides direct access for inspection and sediment removal using conventional vacuum maintenance equipment.

“Stormwater treatment requirements continue to evolve, and our customers need solutions that deliver both verified performance and scalability,” said Nathan Olds, CEO of StormTrap. “SurgeSettler represents the next generation of hydrodynamic separation technology, combining proven treatment performance with the ability to efficiently manage higher flow rates and larger drainage areas. By leveraging our innovative settling pack technology, SurgeSettler helps engineers, owners, and regulators achieve water quality objectives without compromising constructability or long-term value. We are excited to bring another industry-leading solution to market that reinforces StormTrap’s commitment to innovation in stormwater management.”

SurgeSettler joins StormTrap’s portfolio of stormwater treatment solutions, including the StormSettler® hydrodynamic separator, and further expands the company’s ability to support projects ranging from localized water quality treatment to large-scale stormwater management.

For additional information, technical specifications, and sizing assistance, visit the SurgeSettler product page.

About StormTrap

StormTrap provides proven, innovative stormwater management solutions that help manage runoff, protect waterways, and maximize the use of available site space. The company works with engineers, owners, and municipalities to deliver cost-effective, customized solutions for water quality, detention, infiltration, and water harvesting applications. StormTrap systems are designed to address site constraints, reduce project footprints, lower overall costs, and meet project-specific requirements.

For more information, visit StormTrap.com.

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“SurgeSettler represents the next generation of hydrodynamic separation technology, combining proven treatment performance with the ability to efficiently manage higher flow rates and larger drainage areas," said Nathan Olds, CEO of StormTrap.