Stormwater Facility Inspections

At Muller, we provide stormwater facility inspections that help property owners, developers, and municipalities maintain effective, compliant systems. Our certified inspectors evaluate a wide range of infrastructure, including detention and retention ponds, bioretention areas, swales, and storm drains. We ensure effective runoff management and compliance with local, state, and federal stormwater regulations.

What’s Included in a Stormwater Facility Inspection

Our inspection services are tailored to catch issues early and support long-term system performance. Muller’s comprehensive inspections include:

  • Visual assessments of all critical stormwater components
  • Detection of sediment accumulation, erosion, and blockages
  • Field documentation with detailed notes and photographic evidence
  • Inspection checklists based on your jurisdiction’s regulatory standards
  • Clear maintenance recommendations for sustained system health

If your inspection reveals issues requiring formal documentation, we can also assist with Stormwater Compliance Reporting, including the preparation of regulatory-ready reports.

Why Routine Stormwater Inspections Matter

Proactive inspections aren’t just about compliance – they’re essential for maintaining system efficiency and avoiding expensive failures. Left unchecked, minor issues like clogged inlets or structural wear can lead to flooding, property damage, or permit violations.

Our inspections help you plan maintenance with confidence, reduce long-term costs, and protect your stormwater investment. Whether you manage a commercial facility, HOA, or municipal site, routine evaluations give you peace of mind that your stormwater systems are functioning reliably and ready for whatever weather comes next.

Stormwater Services:

Stormwater Service Areas

Our stormwater services are available throughout the Mid-Atlantic region.

  • Maryland
  • Virginia
  • Washington DC
  • North Carolina
  • Delaware
  • Pennsylvania
  • New Jersey
  • West Virginia

Frequently Asked Questions

A stormwater facility inspection is an on-site evaluation of your stormwater management system, such as detention basins, swales, bioretention areas, or underground vaults. Certified inspectors assess for issues like sediment buildup, erosion, blockages, and structural damage to ensure the system is functioning properly and meeting regulatory expectations.

An inspection is the physical process of evaluating your stormwater infrastructure. A compliance report is the formal documentation of those findings. If you need help preparing these, check out our Stormwater Compliance Reporting Services.
Our team checks for debris, sediment accumulation, inlet/outlet function, erosion, vegetation overgrowth, and signs of structural failure. We document all findings with notes and photos, and provide a summary of recommended next steps.
Property owners with permitted stormwater facilities—such as commercial sites, HOAs, or municipalities—are typically required to conduct inspections annually or semi-annually, depending on their jurisdiction or MS4 permit requirements.

At minimum, annual inspections are recommended, though some local or state permits may require more frequent checks. After major storms or construction, additional inspections may be necessary to assess system performance

Get In Touch

For estimates and general inquiries, please complete the form or call 202-964-7578.

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