Drone inspection support for SWPPP consultants managing construction sites in South Carolina

If you are managing NPDES compliance for multiple active construction sites in South Carolina, the weekly inspection schedule is manageable in the off-season. During peak construction (April through October, when you might have eight to twelve active permitted sites running simultaneously) the 7-day clock and rain event triggers are where capacity breaks down.

A drone covers a 40-acre construction site in 45 minutes and delivers a SWPPP-log-ready inspection record within 48 hours. You review and sign the inspection record. We provide the aerial documentation.

You remain the qualified inspector of record. We are the aerial documentation provider.

You send us the site list and schedule. We fly each site on the inspection cadence you set: weekly, bi-weekly, or a hybrid where some sites get drone coverage and you handle ground-level follow-up on flagged areas. Deliverables land in a shared folder organized the way your SWPPP log requires: by BMP type, GPS-tagged, timestamped, with a written condition summary.

For rain event inspections, call or text before 7 AM and we cover the site that morning.

The photo set is organized by BMP category: silt fence, sediment basins and traps, inlet protection, construction entrance, slope protection, and active erosion areas. Every photo carries GPS coordinates and a timestamp. The folder structure mirrors the SWPPP inspection log format.

A written condition summary covers each BMP location: current status, any deficiencies noted, and whether corrective action is required. If you use a specific inspection report template for your SCDHEC-permitted sites, send it before the first flight and we will match the output format.

The 24-hour rain event requirement is where most NPDES violations happen. A 0.5-inch event at midnight means every active site needs coverage before the crew arrives. A drone can cover three to four sites between first light and 8 AM. Ground inspection at the same pace covers one.

For rain event response to work across a full site portfolio, the logistics need to be established before the event: current site list, access contact information for each site, and a standing agreement on deliverable turnaround. Setting this up at the start of the construction season is the practical approach.

South Carolina's NPDES Construction General Permit requires inspections every seven calendar days and within 24 hours of a 0.5-inch rain event, from initial land disturbance through final stabilization at 70% permanent vegetative cover. The CEPSCI certification (Certified Erosion Prevention and Sediment Control Inspector) is administered through Clemson Extension in partnership with SCDHEC.

Under SC H4679, commercial drone operations in South Carolina require FAA Part 107 certification. We are certified and insured.