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Orange County, NC Environmental Rules: Erosion Control (2026)

Some Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified July 2026

Key Facts

State law
Sedimentation Pollution Control Act
Plan trigger
More than 1 acre disturbed
Advance filing
30+ days before work
Controls
Silt fence, basins, stabilization
Max penalty
$5,000 per day

Summary

Any land-disturbing activity over one acre in Orange County needs an approved erosion and sedimentation control plan under the North Carolina Sedimentation Pollution Control Act. Silt fences, sediment basins, and prompt stabilization are required.

These county ordinances apply to unincorporated areas of Orange County. Incorporated cities within the county may have their own rules that take precedence over county-level regulations.

No person shall initiate any land-disturbing activity that will disturb more than one acre on a tract unless, 30 or more days prior to initiating the activity, an erosion and sedimentation control plan for the activity is filed with the agency having jurisdiction and approved by the agency

Source: North Carolina General StatutesView official code

Full Breakdown

The North Carolina Sedimentation Pollution Control Act (N.C.G.S. §113A-50 et seq.) governs erosion control statewide, and Orange County administers it locally. A land-disturbing activity that disturbs more than one acre requires an erosion and sedimentation control plan filed at least 30 days before work begins. Standard measures include silt fence, stabilized construction entrances, sediment basins, and stabilizing bare soil within the required timeframe. In the water-supply watersheds and Jordan Lake riparian buffers, stricter setbacks and buffer protections apply. Sites of one acre or more also need NPDES construction stormwater coverage.

Violations & Fines

Land-disturbing without an approved plan or controls brings stop-work orders and civil penalties. The Sedimentation Pollution Control Act allows fines up to $5,000 per day per violation until the site is corrected.

Frequently Asked Questions

When do I need an erosion control plan?
When land-disturbing activity will disturb more than one acre. File the plan at least 30 days before starting, and the local program must approve it before you break ground.
What happens if I skip it?
The county can issue a stop-work order and civil penalties up to $5,000 per day under the Sedimentation Pollution Control Act until the site is stabilized.

Sources & Official References

Other rules in Orange County

All Orange County rules

Compare Orange County to another location·View the North Carolina environmental rules overview

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