Permeable Pavement Systems

Stormwater Management

Permeable pavement system allowing stormwater infiltration into an underlying stone reservoir at a retail establishment.

Permeable Pavement Stormwater Maintenance Services

CMS provides permeable pavement stormwater maintenance services across North Carolina for commercial properties, HOAs, and municipal stormwater systems. Permeable pavement is designed to allow stormwater runoff to infiltrate through the pavement surface and into an underlying stone reservoir. Over time, sediment, organic debris, and fine particles can clog the surface voids and reduce infiltration performance. CMS maintenance crews restore infiltration capacity through vacuum sweeping, inspections, and stormwater system cleaning. Routine maintenance protects pavement lifespan and ensures the system continues to meet North Carolina stormwater permit requirements.

Maintenance Notes

Permeable pavement systems require specialized maintenance to prevent clogging and maintain infiltration performance. CMS maintenance programs focus on removing sediment from pavement surfaces and maintaining proper drainage through the stone reservoir layer. Routine maintenance prevents surface sealing and protects long-term stormwater performance.

Maintenance Tasks

Vacuum sweeping to remove sediment buildup
Removal of organic debris and trash
Inspection of pavement joints and surface voids
Restoration of joint aggregate where needed
Inspection of drainage layers and underdrains
Identification and correction of sediment sources

Permeable Pavement Inspection Services

CMS performs routine permeable pavement inspections to evaluate infiltration performance and structural condition. Inspectors evaluate surface clogging, drainage function, and surrounding sediment sources. Inspection reports document maintenance needs and help property owners maintain stormwater compliance.

Permeable Pavement Repair Services

CMS repair crews restore permeable pavement systems when infiltration performance declines. Repairs may include deep vacuum cleaning, joint restoration, paver replacement, or drainage layer corrections. These services help extend pavement lifespan and maintain stormwater functionality.

Permeable Pavement Frequently Asked Questions

How often should permeable pavement be maintained in North Carolina?
Most permeable pavement systems should be vacuum swept two to four times per year depending on site conditions and sediment exposure.

Can permeable pavement become clogged?
Yes. Fine sediment and organic debris can clog pavement voids and reduce infiltration. Regular CMS vacuum maintenance restores infiltration capacity.

Do permeable pavement systems require inspections?
Yes. North Carolina stormwater permits typically require routine inspections to verify infiltration performance and structural condition.

What equipment is used to maintain permeable pavement?
Regenerative air or vacuum sweeping equipment is used to remove sediment embedded in pavement voids.

Does CMS repair permeable pavement systems?
Yes. CMS provides vacuum restoration, joint repair, paver replacement, and stormwater drainage corrections.

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Above Ground SCM Maintenance, Repairs, and Inspections

Stormwater Maintenance – Aboveground SCM Devices

Routine maintenance of aboveground stormwater control measures (SCMs) such as bioretention areas, detention ponds, sand filters, and vegetated swales ensures these systems function as originally designed. Services include debris removal, sediment cleanout, vegetation management, erosion repair, and outlet structure cleaning to maintain proper flow and treatment capacity. CMS provides proactive maintenance programs that protect water quality, prevent system failures, and keep facilities operating efficiently year-round.

Compliance, Longevity & Sustainability:
Consistent maintenance helps property owners remain compliant with state and local stormwater permits by ensuring SCMs meet performance standards. Removing sediment buildup and correcting minor issues early extends the service life of infrastructure and prevents costly rehabilitation. Properly maintained systems improve pollutant removal, reduce downstream impacts, and support long-term environmental sustainability goals.

Vegetation management at stormwater retention pond

CMS repairing damaged stormwater pipe and drainage infrastructure

Stormwater Repairs – Aboveground SCM Devices

Stormwater repair services address structural damage, erosion, failing outlet structures, compromised embankments, and deteriorated components within aboveground SCMs. Timely repairs restore hydraulic performance and prevent minor deficiencies from escalating into major failures. CMS evaluates system conditions and implements targeted repair solutions to return SCMs to full operational capacity.

Compliance, Longevity & Sustainability:
Prompt repairs help maintain regulatory compliance by correcting deficiencies often cited during inspections. Restoring structural integrity protects the long-term durability of the asset and reduces the risk of emergency replacements. Sustainable repair practices preserve existing infrastructure, reduce waste, and ensure continued water quality treatment performance.

Stormwater Inspection – Aboveground SCM Devices

Professional inspection of aboveground SCMs includes detailed visual assessments, sediment measurements, structural evaluations, and documentation of overall system performance. Regular inspections identify developing issues such as clogging, erosion, vegetation overgrowth, or structural deterioration before they compromise function. CMS provides thorough inspection reporting to support maintenance planning and regulatory documentation requirements.

Compliance, Longevity & Sustainability:
Routine inspections are critical for meeting permit requirements and demonstrating due diligence to regulatory agencies. Early detection of deficiencies reduces long-term repair costs and maximizes the lifespan of stormwater assets. By ensuring systems operate efficiently, inspections contribute to sustainable watershed protection and responsible environmental stewardship.

Certified SWPPP inspector conducting stormwater compliance inspection with erosion and sediment control measures on active construction site

Stormwater Services

Importance of Stormwater Management

Stormwater management is a critical part of protecting property, infrastructure, and natural resources by controlling runoff volume and reducing pollutants carried by rainwater. Engineered stormwater control measures (SCMs) such as wet ponds, bioretention basins, infiltration systems, and swales are designed to treat runoff, reduce erosion, and improve water quality before water enters streams, rivers, and lakes. Without effective stormwater management, uncontrolled runoff can cause flooding, property damage, and increased sedimentation in receiving waters, leading to non-point source pollution concerns. For commercial, industrial, and regulated sites across North Carolina, proactive stormwater management supports regulatory compliance and reduces long-term operational risks. CMS provides comprehensive stormwater solutions that help property owners plan, implement, and maintain stormwater systems to protect assets and meet performance expectations.

Maintenance of Stormwater SCMs

Routine maintenance of stormwater SCMs is essential for long-term performance, as sediment buildup, vegetation overgrowth, and clogged inlets can significantly diminish treatment capacity and hydraulic function. Regular maintenance ensures that SCMs, such as wet ponds, permeable pavements, and sand filters, continue to capture and treat stormwater runoff as designed. Without ongoing care, SCMs can fail to remove pollutants effectively, increasing the risk of flooding and environmental impacts downstream. CMS provides scheduled maintenance programs tailored to each SCM, helping clients avoid costly failures and ensuring reliable stormwater performance.

Repairs of Stormwater SCMs

Stormwater SCM repair services are critical when systems demonstrate structural issues, sediment reduction in storage capacity, or impaired hydraulic performance. Repairs may involve restructuring outlet controls, restoring eroded embankments, replacing damaged components, or rehabilitating clogged media in filtration systems. Timely SCM repairs prevent small issues from developing into system failures that compromise water quality and increase risk of flooding. CMS delivers stormwater system repair expertise that addresses both routine and non-routine corrections to restore SCMs to their original operating condition.

Inspections of Stormwater SCMs

Stormwater SCM inspections identify maintenance needs, structural concerns, and performance deficiencies that could reduce treatment effectiveness or lead to regulatory non-compliance. Quarterly, annual, and post-storm inspections help owners track sediment accumulation, vegetation conditions, and hydraulic function to ensure SCMs operate as intended. CMS utilizes certified stormwater inspectors and documented inspection protocols to provide thorough evaluations and detailed reporting. These professional inspections support stormwater compliance goals and help guide maintenance and repair planning for each SCM device.