The patented StormPal Interceptor is a dual-chamber Oil Grit Separator specifically engineered to provide highly effective stormwater treatment while remaining simple to install, economical to maintain, and adaptable to virtually any project.
The SPI removes harmful pollutants before stormwater reaches municipal infrastructure or receiving water bodies, significantly improving discharged water quality.
Routine field monitoring has demonstrated Total Suspended Solids (TSS) removal efficiencies ranging from 81% to 96%, helping protect waterways while supporting regulatory compliance.
The StormPal Interceptor utilizes a two-stage treatment process.
Incoming stormwater first enters Chamber One, where:
· Heavy sediment settles naturally.
· Debris is captured.
· Free-phase oil and grease separate from the water.
· Significant quantities of Total Suspended Solids (TSS) are removed.
Water then flows into Chamber Two where:
· Remaining suspended solids are removed.
· Additional petroleum products are captured.
· Water receives final polishing before discharge.
The result is consistently cleaner stormwater entering municipal infrastructure and natural receiving water bodies.
Unlike many complex treatment systems, the SPI utilizes a straightforward dual-chamber design built from standard precast concrete manholes.
This simple approach delivers exceptional reliability while reducing installation complexity and maintenance requirements.
The StormPal Interceptor provides one of the industry’s lowest total lifecycle costs through:
· Lower purchase cost
· Simplified installation
· Reduced maintenance
· Long service life
· Minimal specialized replacement parts
The result is outstanding long-term value for municipalities, developers, and property owners.
StormPal provides complete AutoCAD drawings and engineering specifications to simplify project implementation.
Additional installation advantages include:
· Standard precast concrete components
· Readily available plumbing materials
· No specialized assembly equipment
· Conventional installation techniques
· Modular configuration adaptable to challenging site conditions
Since the SPI utilizes common construction materials, contractors can install the system quickly and efficiently without specialized training.
Many competing stormwater systems bypass treatment during heavy rainfall—the very conditions when pollutant loading is often greatest.
The StormPal Interceptor is engineered to provide full treatment efficiency through storm events up to the 10-year design storm.
During larger storm events, the secondary chamber continues to provide meaningful treatment while the integrated overflow bypass safely conveys excess flow without causing upstream storm sewer backup.
Stormwater treatment systems inevitably collect sediment and pollutants that require periodic removal.
Unlike systems that rely on filtration media prone to clogging and declining performance, the SPI operates without filters.
Benefits include:
· Lower maintenance frequency
· Reduced risk of clogging
· Consistent treatment efficiency
· Simplified inspection procedures
· Lower lifecycle operating costs
Routine maintenance generally consists of:
· Annual inspection
· Sediment removal when required
· Skimming accumulated oil and grease before high-precipitation seasons
StormPal continues to conduct in-situ performance testing on installed systems throughout Ontario.
Sampling has consistently demonstrated:
· Total Suspended Solids removal efficiencies between 81% and 96%
· Effective petroleum hydrocarbon capture
· Excellent sediment retention
· Performance exceeding expectations established within the New Jersey Department of Environmental Protection Laboratory Protocol (January 25, 2013) for particle size removal
These results demonstrate the StormPal Interceptor’s ability to perform under real-world operating conditions.
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