Guilford County, NC Environmental Rules: Erosion Control (2026)
Key Facts
- Plan required
- land disturbance over 1 acre
- Filing deadline
- 30+ days before starting work
- Ground cover deadline
- 15 working days after grading
- Civil penalty
- up to $5,000 per violation
- Project penalty cap
- $25,000 if abated in 180 days
- Criminal penalty
- Class 2 misdemeanor, up to 90 days
Summary
Any land-disturbing activity over one acre in unincorporated Guilford County, including its extraterritorial reach into Jamestown, Stokesdale, Summerfield and Oak Ridge, needs an approved erosion and sedimentation control plan filed at least 30 days ahead. Slopes must get permanent ground cover within 15 working days of grading, and the Enforcement Officer can fine violators up to $5,000 per day.
1. Plan Required. No person shall undertake any land-disturbing activity subject to this Ordinance without first obtaining a Plan approval therefor from Guilford County, if the land-disturbing activity: a. Exceeds one (1) acre. b. Will take place on highly erodible soils with a "k" factor greater than .36 in a watershed critical area. c. Includes a permanent runoff control structure in a watershed critical area. d. Will take place in Tier 1 or Tier 2 of a watershed critical area.
Full Breakdown
36 in a watershed critical area, adds a permanent runoff control structure in a critical area, or falls in Tier 1 or Tier 2 of a watershed critical area (UDO Subsec. 1). The rule reaches beyond the county line into the extraterritorial jurisdiction the county shares with Jamestown, Stokesdale, Summerfield, Whitsett, Sedalia, Pleasant Garden and Oak Ridge under interlocal agreement (Subsec. 1). Farming, forestry conducted under the state's Forest Practice Guidelines, and land-disturbing activity under 43,560 square feet are exempt (Subsec. 2-3). Anyone who does need a plan must file it with the county at least 30 days before starting work (Subsec.
e), keep a buffer along any lake or watercourse wide enough that the nearer 25 percent of the buffer confines visible siltation (Subsec. a), and grade slopes no steeper than vegetation or erosion devices can hold, planting permanent ground cover within 15 working days of completing a grading phase or 90 calendar days after finishing construction, whichever is shorter (Subsec. b, d). The Enforcement Officer can assess a civil penalty per violation, up to $5,000, with a $25,000 cap per project if the violator abates damage within 180 days and has no prior violation (UDO Subsec.
A). Willful or knowing violations are a Class 2 misdemeanor punishable by up to 90 days in jail, a fine up to $5,000, or both (Subsec. F).
Violations & Fines
Violating soil erosion rules carries a civil penalty of up to $5,000 per violation, assessed daily, with a $25,000 cumulative cap when the violator has no prior offense and corrects the damage within 180 days (UDO Subsec. 10.07.A). Guilford County must serve written notice before assessing a penalty, and violators can request a hearing or seek state remission within 30 or 60 days. Willful violations are a Class 2 misdemeanor punishable by up to 90 days in jail and a $5,000 fine.
Frequently Asked Questions
Do I need a permit to grade my lot in unincorporated Guilford County?
Is farmland exempt from Guilford County's erosion control plan requirement?
What happens if I violate Guilford County's erosion control rules?
How soon must I stabilize a graded slope in Guilford County?
Sources & Official References
Other rules in Guilford County
Compare Guilford County to another location·View the North Carolina environmental rules overview
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