Savannah Stormwater Compliance: What Chatham County Property Owners Need to Know

Quick answer: Property owners in Savannah and Chatham County must maintain stormwater systems under Georgia’s Phase I MS4 permits (reissued June 2024) and local ordinances. Annual professional inspections, routine sediment removal, and vegetation management are required. Construction projects disturbing 1+ acres need a GA EPD construction general permit and GSWCC-certified personnel on site. Enforcement follows a graduated path from Notice of Violation to state-level civil penalties by GA EPD for persistent non-compliance.

If you own or manage property in Savannah or Chatham County, Georgia, your stormwater systems carry legal obligations that are enforced at multiple levels of government. Georgia’s regulatory framework differs from South Carolina’s in some key ways, and understanding those differences matters if you’re responsible for maintaining BMPs, managing construction sites, or budgeting for stormwater compliance.

This guide covers the regulatory structure that applies to Chatham County properties, what’s required of property owners, and how to stay ahead of enforcement.

Georgia’s Stormwater Regulatory Structure

Georgia’s stormwater program is administered by the Georgia Environmental Protection Division (GA EPD), which operates under the Georgia Department of Natural Resources. GA EPD issues and enforces stormwater permits across the state, including the NPDES permits that govern municipal stormwater systems and construction activity.

MS4 Permits

Chatham County and the City of Savannah operate under Phase I Large Municipal Separate Storm Sewer System (MS4) permits. These permits were reissued by GA EPD on June 5, 2024, with an effective date of June 11, 2024. The Phase I Large MS4 permits require the municipalities to implement stormwater management programs that include controls on post-construction runoff from new development and redevelopment.

In practical terms, this means Savannah and Chatham County are required to make sure private stormwater systems continue to perform as designed. That obligation gets passed to property owners through recorded maintenance agreements, local ordinances, and conditions of site plan approval.

Construction General Permits

Construction activity that disturbs one acre or more of land requires coverage under a Georgia construction general permit. GA EPD reissued the construction general permits (GAR100001, GAR100002, and GAR100003) on August 1, 2023. These permits are valid through July 31, 2028.

The permits require a site-specific erosion, sedimentation, and pollution prevention plan (ES&PCP), regular inspections, and proper installation and maintenance of erosion and sediment controls throughout the construction period. The requirements apply to any land-disturbing activity meeting the acreage threshold, whether it’s a large subdivision or a single commercial pad site.

GA EPD Coastal District

Chatham County falls under GA EPD’s Coastal District, administered from the Brunswick Office. This is your regional contact for permit questions, compliance inquiries, and reporting. The office can be reached at 912-264-7284. Property owners and contractors working in the coastal zone should be aware that the Coastal District office handles permitting and enforcement for all coastal counties, so response times can vary during busy construction seasons.

The Georgia Erosion and Sedimentation Act

Georgia’s Erosion and Sedimentation Act is the state law that governs land-disturbing activities. It establishes minimum requirements for erosion and sediment control on construction sites and gives local governments the authority to adopt and enforce their own ordinances, provided they meet or exceed the state standards.

Key requirements under the Act include:

Buffer requirements. The Act establishes minimum buffers along state waters. Within Chatham County, this applies to rivers, streams, marshes, and other water bodies. Land-disturbing activity within these buffer zones requires specific permitting and design considerations.

Best management practices. All land-disturbing activities must employ BMPs to minimize erosion and prevent sediment from leaving the site. The BMPs must be installed before land disturbance begins and maintained throughout the project.

Permitting thresholds. Any activity disturbing more than one acre requires a land-disturbing activity permit from the local issuing authority. Chatham County and the City of Savannah each have their own permitting processes.

Compliance monitoring. The local issuing authority conducts inspections to verify that erosion and sediment controls are installed, maintained, and functioning as designed. Failure to maintain controls can result in stop-work orders and penalties.

GSWCC Certification Requirements

The Georgia Soil and Water Conservation Commission (GSWCC) administers a certification program for personnel involved in erosion and sediment control on construction sites. This certification is required by the Erosion and Sedimentation Act and enforced as a condition of construction general permits.

At minimum, projects must have a certified personnel on site or readily available. The certification levels include:

Level 1A - Introduction to Erosion and Sediment Control. Required for all individuals involved in land-disturbing activity. This covers basic BMP installation and maintenance.

Level 1B - Fundamentals of Erosion and Sediment Control. Required for individuals responsible for installation, maintenance, and inspection of erosion and sediment controls.

Level II - Design of Erosion and Sediment Control. Required for individuals who design erosion, sedimentation, and pollution prevention plans for permitted projects.

If you’re a developer or contractor working in Chatham County, making sure your team has current GSWCC certifications isn’t optional. It’s a permit condition, and lack of certification can trigger enforcement action on its own.

What Chatham County Property Owners Must Do

Once construction is complete and a stormwater management system has been installed, the long-term maintenance obligation transfers to the property owner. This applies to HOA communities, commercial properties, golf courses, and any other developed property with engineered stormwater systems.

Maintain Your Systems

Your stormwater ponds, detention basins, bio-swales, and other BMPs were designed to store, treat, and release runoff at specific rates. When sediment accumulates, vegetation becomes overgrown, outlet structures clog, or banks erode, the system’s performance degrades. At some point, a degraded system no longer meets the design standard it was permitted to, and you’re out of compliance.

Routine maintenance includes vegetation management, sediment removal, debris clearing, and outlet structure inspection. These aren’t cosmetic activities. They’re the work that keeps your system functioning within its design parameters. The 5 signs your stormwater system needs repair covers what degradation looks like before an inspector writes it up.

Conduct Regular Inspections

Professional inspections should be performed at least annually. The inspection should evaluate every component of the system against the original design, document current conditions with photos and measurements, and identify any maintenance or repair needs. Written inspection reports should be retained in your files indefinitely.

Chatham County may conduct its own inspections at any time. If county inspectors find your system in poor condition, the first step is typically a notice of violation with a corrective action deadline. Having your own current inspection reports that show you’re actively managing the system can make a significant difference in how enforcement proceeds.

Keep Records

Documentation protects you. Maintain files that include your recorded stormwater maintenance agreement, original engineering plans and design calculations, all inspection reports, records of maintenance activities with dates and descriptions, and receipts for any repair work performed.

If you’ve lost records during property transfers or management company changes, start rebuilding your file now. Request a copy of your maintenance agreement from Chatham County’s stormwater department. Have a professional conduct a baseline assessment to document current conditions. Going forward, document everything.

Storm Surge and Coastal Flood Risk

Savannah and Chatham County face stormwater challenges that inland properties don’t. Georgia has approximately 4% of its homes at risk of storm surge, and the vast majority of that risk is concentrated in coastal zones like Chatham County.

Storm surge compounds stormwater problems in several ways. It raises the effective water table, reducing the storage capacity of ponds and detention basins. It can push saltwater into freshwater stormwater systems, damaging vegetation and accelerating corrosion of metal components. And it can physically damage outfall structures that discharge to tidal waterways.

Property owners in surge-prone areas should factor this additional risk into their maintenance programs and budgets. Systems that perform adequately under normal conditions may be vulnerable during surge events, and post-storm inspections should be a standard part of your emergency response plan. Our hurricane season stormwater prep checklist covers the before, during, and after phases, and Hurricane Helene’s impact on South Carolina stormwater systems shows what surge did to coastal systems across the region.

How Enforcement Works

When Chatham County or GA EPD identifies a stormwater violation, the enforcement process follows a graduated pattern similar to what happens in Beaufort County and Charleston County across the state line.

Inspection and identification. A county inspector or GA EPD representative identifies deficiencies during a routine inspection, complaint investigation, or permit compliance review.

Notice of violation. The property owner receives a formal notice identifying the specific deficiencies and a deadline for corrective action. This is your opportunity to fix the problems on your own terms, with your own contractor, at your own pace within the deadline.

Follow-up inspection. After the correction deadline, inspectors return to verify that the deficiencies have been addressed. If corrective action is complete, the case is typically closed.

Escalation. If corrective action is not complete by the deadline, enforcement escalates. This can include additional fines, stop-work orders on other projects associated with the same property owner, and requests that implementing agencies refrain from issuing further building or grading permits for the property.

State-level enforcement. For serious violations or persistent non-compliance, GA EPD can take direct enforcement action, including civil penalties and consent orders that require specific corrective actions within strict timeframes.

The cost of compliance is always lower than the cost of enforcement. A maintenance program that runs a few thousand dollars a year is a fraction of what a single enforcement action can cost when you factor in fines, expedited repair costs, legal fees, and the time your staff spends responding to regulators instead of managing your property. We put real numbers on both sides of that comparison in what happens when you ignore a stormwater violation notice.

AUE Land Can Help

AUE Land works with property owners across Savannah and Chatham County to maintain stormwater compliance and prevent enforcement problems before they start. We provide site assessments that document the current condition of your systems and identify what needs attention. Schedule your site assessment and get ahead of your next inspection.