Henry County, GA Environmental Rules: Stormwater Management (2026)
Key Facts
- Utility created
- Ordinance No. 12-19, Nov. 20, 2012
- Billing basis
- Impervious surface area per parcel
- Impervious unit (IU)
- 4,780 sq ft = 1 IU
- Annual rate
- $39.83 per impervious unit
- Late fee
- 1.5% per month on unpaid balance
- City exemption
- Stockbridge, McDonough, Hampton, Locust Grove
Summary
Henry County runs a stormwater management utility that bills every developed parcel in the unincorporated county based on impervious surface, and requires property owners to build and maintain on-site systems that safely collect and discharge runoff. Failing to maintain those systems is a nuisance the county can abate in court under § 3-5-504.
The appropriate and efficacious management of the stormwater management system by the county on behalf of its citizens and in compliance with applicable state and federal law places necessary and appropriate obligations on private property owners as well. All property owners and developers of developed real property within Henry County shall provide, manage, maintain, and operate on-site stormwater management systems sufficient to collect, convey, detain, and discharge stormwater in a safe manner consistent with all county development regulations and state and federal law. Failure to meet this obligation shall constitute a nuisance and be subject to an abatement action filed by the county in a court of proper jurisdiction.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 44).
Full Breakdown
The Henry County Board of Commissioners created the stormwater management utility by Ordinance No. 12-19 in November 2012 to fund drainage, water-quality, and floodplain-management work required under the county's federal NPDES Phase II stormwater permit. Section 3-5-504 places the core obligation directly on landowners: all property owners and developers of developed real property in the county must provide, manage, maintain, and operate on-site stormwater systems sufficient to collect, convey, detain, and discharge stormwater safely; failing to do so is declared a nuisance, and the county can sue to abate it, place a lien on the property for the cost of the work, and enter the property to inspect or test compliance.
Funding comes from a service charge set out in § 3-5-506, billed to every developed parcel in the service area based primarily on impervious surface. 83 per IU. Lands inside the cities of Stockbridge, McDonough, Hampton, and Locust Grove are exempt from the charge under § 3-5-508 unless their city adopts an interlocal stormwater agreement with the county, and county roads, GDOT rights-of-way, and Henry County Water Authority treatment and pumping facilities are exempt as well. A customer who disputes a bill can appeal in writing to the stormwater utility director, then to the county manager, and finally to the board of commissioners under § 3-5-509, with 30 days allowed at each stage.
Violations & Fines
Unpaid service charges accrue a 1.5 percent monthly late fee under § 3-5-507 and can be referred to a collection agency, sued on in court with attorneys' fees and costs assessed to the owner, or bundled with other county utility billing so that nonpayment can lead to disconnection of other services. A failure to maintain a required on-site system is a nuisance the county can abate through court action and then bill back to the owner as a lien.
Frequently Asked Questions
Who has to pay Henry County's stormwater fee?
How is the stormwater charge calculated?
Can I get a credit for on-site stormwater controls?
Sources & Official References
Other rules in Henry County
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