CGP (Construction General Permit)

What the Construction General Permit Covers

The Construction General Permit isn’t just paperwork. It’s a full set of requirements that kicks in the moment your construction project disturbs one acre or more of earth. This includes excavation, grading, demolition, and any activity that exposes soil to potential runoff.

The CGP requires you to develop and implement a Stormwater Pollution Prevention Plan (SWPPP) before work begins. This plan outlines how you’ll control erosion, manage sediment, and prevent construction materials from washing into storm drains, wetlands, or waterways.

Why Property Managers Need to Know This

If you’re managing a property undergoing renovation, expansion, or new construction, the CGP likely applies to your project. Many property managers discover this requirement mid-project when an inspector shows up or when sediment violations trigger enforcement action.

In South Carolina, the Department of Health and Environmental Control (DHEC) enforces these requirements. Georgia’s Environmental Protection Division and Florida’s Department of Environmental Protection have similar authority. Violations aren’t just paperwork problems. They can shut down your project and result in fines ranging from thousands to tens of thousands of dollars per day.

Common CGP Compliance Problems

The biggest issues we see are projects that should have obtained a CGP but didn’t, and projects with permits but inadequate erosion controls. Silt fences that aren’t maintained, sediment basins that overflow during storms, and construction entrances that track mud onto public roads all trigger violations.

Weather makes everything worse. A small compliance issue becomes a major problem when heavy rain washes sediment off your site. That’s why the CGP requires regular inspections and immediate repairs to damaged controls.

Another common problem is the Notice of Termination (NOT). You can’t just finish construction and walk away. The CGP requires you to stabilize all disturbed areas and file proper termination paperwork. Many property managers don’t realize their permit stays active until this happens.

State-Specific Requirements

While the CGP is federal, states add their own requirements. South Carolina requires additional permits for certain coastal areas. Georgia has specific requirements for the Chattahoochee River corridor. Florida adds restrictions in Outstanding Florida Waters.

These state requirements often include buffer zones, additional monitoring, and stricter sediment controls. What works for a project in Columbia might not meet requirements in Charleston’s coastal zone.

When Professional Help Makes Sense

Don’t wait until you’ve a problem to get help. If your project disturbs an acre or more, you need erosion control planning from day one. The SWPPP isn’t something you can download and fill out. It needs to match your specific site conditions, soil types, and local requirements.

Regular inspections are required, but they need to be done by someone who knows what to look for. A quick walk-around isn’t enough. Professional stormwater management means identifying problems before they become violations.

If you’re dealing with an existing violation or enforcement action, time matters. Quick response with proper equipment and expertise can minimize penalties and get your project back on track.