Stormwater Vault Cleaning & Maintenance in Seattle, WA
Stormwater vault maintenance plays a crucial role in managing runoff, capturing sediment, and improving water quality before discharge. Over time, these structures accumulate sediment, organic matter, and debris — leading to clogs, reduced capacity, and possible system failure. Our professional stormwater vault cleaning services help you maintain flow, reduce maintenance costs, and remain compliant with local and federal regulations.
StormFilter® vault servicing · filter vault cleaning · storm drain vault cleaning · vault inspection & sediment removal — serving Seattle, Tacoma, Bellevue, and the greater Puget Sound region.
get a vault cleaning quote explore all maintenance servicesWhy Stormwater Vault Maintenance Is Essential
Without regular cleaning, vaults, sand filters, biofilters and underground stormwater systems can become ineffective. Left unchecked, they may contribute to:
Flooding
Flooding and surface pooling around clogged inlets and outlets.
Infrastructure Damage
Erosion and infrastructure damage as flows bypass full structures.
Permit Non-Compliance
Non-compliance with NPDES stormwater permits.
NOV Fines
Costly emergency repairs and Notice of Violation (NOV) fines.
Routine cleaning ensures your system is operating as designed, protecting both your facility and the surrounding environment.
What’s Included in Our Vault Cleaning Services
Our confined-space-certified technicians follow OSHA confined-space entry procedures and use advanced vacuum extraction tools to safely remove waste and restore vault function. Services include:
- Vacuum truck removal of sediment, oils, and debris
- Inspection of internal vault structures and flow control devices
- Cleaning of sand filters, outlet structures, and weirs
- Flushing of underdrains and lateral connections
- GPS mapping and maintenance logs for your O&M records
- Optional CCTV inspection for pipe connections
If your site includes multiple underground systems, we can provide a comprehensive vault and filter maintenance package to streamline compliance.
Related Services
Catch Basin Replacement
Restore drainage performance and prevent localized flooding with professional installation and replacement.
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Storm Drain Cleaning
Deep cleaning for storm drains, swales, and BMPs to keep runoff moving and pollutants contained.
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Stormwater Inspections
Stormwater inspection services for damaged basins and channels, backed by our technical services team.
learn moreAsk us about a full stormwater maintenance plan to reduce costs and avoid violations.