Contech StormFilter Maintenance & Inspection Services

Ensure your property’s stormwater system stays compliant and fully functional with professional inspection and maintenance for your Contech Engineered Solutions StormFilter®. iSTORMWATER specializes in maintaining belowground stormwater treatment systems like the StormFilter across Maryland, Washington, DC, Northern Virginia and Delaware.

What Is the Contech StormFilter®?

The StormFilter® is an advanced belowground stormwater treatment system designed to capture sediment, oil, and other pollutants before they enter local waterways. Housed in precast concrete vaults, these systems contain media-filled cartridges that filter out contaminants from stormwater runoff. They are widely used on commercial properties to help meet stormwater quality regulations.

StormFilters are known for:

• Modular design for scalable installation
• Compatibility with a range of media types (e.g., ZPG™, PhosphoSorb®, and Perlite)
• Low lifecycle cost and long intervals between maintenance

While durable, the system requires routine inspections and cartridge maintenance to continue performing efficiently.

StormFilter® Inspections for Commercial Properties

Routine inspections help ensure your StormFilter unit is working properly and that your property stays in compliance with local and federal stormwater regulations.

What’s Included in a StormFilter Inspection?

Our trained technicians perform thorough surface-level and, if necessary, confined-space evaluations. A standard inspection includes:

• Measuring sediment depth and buildup
• Checking for visible signs of ponding or clogged inlets/outlets
• Evaluating cartridge performance based on flow and bypass conditions
• Noting surrounding erosion, construction, or environmental changes
• Documenting all findings with photos and written reports for compliance tracking

Recommended Inspection Schedule

To maximize the system’s efficiency and avoid costly repairs, schedule inspections at the following intervals:

• Annually (minimum for most properties)
• After significant storm events (to assess sediment load and damage)
• Following chemical spills or high-pollutant runoff
  
• Anytime system performance seems impaired (e.g., pooling water, unusual odors)
• As needed based on site-specific conditions
  

If your property has not had a StormFilter inspection in the last year, contact iSTORMWATER today.

StormFilter® Maintenance & Cartridge Replacement

Most StormFilter systems require cartridge replacement every one to five years, depending on pollutant loads and runoff volume. Ignoring maintenance can result in system failure, pollutant bypass, and even code violations.

Our Maintenance Process

During scheduled maintenance, iSTORMWATER technicians:

1. Set up a secure work area around the vault access point
2. Remove the steel grates and covers (each may weigh up to 100 lbs)
3. Disconnect and safely lift out each spent media cartridge
4. Vacuum accumulated sediment using a vactor truck
5. Rinse the vault’s interior to remove residual debris
6. Install new or factory-refurbished cartridges from Contech

This thorough service restores your StormFilter’s filtration capacity and reduces your risk of environmental violations or fines.

Cartridge Exchange Services

When cartridges reach capacity, performance drops – leading to backups, flooding, or unfiltered runoff. iSTORMWATER offers:

• Certified cartridge replacement services
  
• Access to Contech’s refurbished cartridge program
• Proper removal and handling of spent cartridges for shipment to Contech

We help property owners get the most value out of their StormFilter system while minimizing environmental impact.

Full-Service Stormwater Compliance Support

Contech StormFilters are typically just one part of a comprehensive stormwater infrastructure. For long-term compliance and system health, we recommend routine maintenance for all upstream and downstream components, including:

• Drainage inlets and outlets
• Pretreatment sumps and forebays
• Detention vaults or chambers
• Additional proprietary devices

Whether you manage a shopping center, industrial site, or municipal facility, iSTORMWATER provides turnkey stormwater solutions tailored to your needs.

Schedule StormFilter Services in MD, DC, VA, or DE

Don’t risk stormwater compliance issues or system failure. With more than 20 years of experience, iSTORMWATER is the trusted choice for Contech StormFilter inspections, maintenance, and cartridge replacement in:

• Maryland
  
• Northern Virginia
  
• Washington, DC
• Delaware

📞 Call (410) 231-3455 or contact us online to schedule a service visit from our certified stormwater maintenance professionals.