Sourced from Georgia DPH county environmental health directory, District 4 Public Health program documentation, and Henry County Water Authority — last checked July 2026.
Who Issues Henry County Septic Permits
Henry County is served by District 4 Public Health, which covers twelve counties: Butts, Carroll, Coweta, Fayette, Heard, Henry, Lamar, Meriwether, Pike, Spalding, Troup, and Upson.
Henry County Environmental Health: 137 Henry Parkway, McDonough, GA 30253 — (470) 661-0044
Henry County Health Department (main): 135 Henry Parkway, McDonough, GA 30253 — (470) 661-0005
District 4 headquarters: 301 Main Street, LaGrange, GA 30240 — 706-845-4035
Why We Can’t List Henry’s Fees
Every other metro Atlanta county publishes a septic fee schedule online. District 4 does not. Its application forms instruct applicants to pay “the associated fee,” with the amount determined at the county office.
We could guess based on neighboring counties — most metro residential permits land between $250 and $275 — but a guess isn’t useful when you’re budgeting a project, and publishing a made-up number would be worse than publishing none. Call (470) 661-0044 and ask directly.
When you call, have ready: your parcel or tax ID, whether the property is on public water or a private well, and whether you need new construction, a repair, or a modification — each carries a different fee and different soil requirements.
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What Applies Regardless
Georgia’s statewide framework governs Henry County the same as everywhere else:
A permit is required before any installation, modification, or repair, and permits are valid for 12 months from issue. Only DPH-certified contractors may perform the work. A Level 3 soil report by a Georgia Certified Soil Classifier is required before new-construction permits. Minimum tank size is 1,000 gallons, two-compartment with an effluent filter for anything installed after February 20, 2000. Setbacks are 50 feet from tank to well, 100 feet from absorption field to well.
Check Sewer First
Henry County — McDonough, Stockbridge, Locust Grove — is one of metro Atlanta’s fastest-growing counties, and sewer infrastructure is expanding into areas that were rural a decade ago.
On southern-metro Piedmont clay, where an engineered system costs materially more sewer availability materially changes the math. Henry County Water Authority: 770-957-6659. Ask whether service is available at your address now, and whether extension is planned within three to five years.
Georgia Septic Guide — Free Tool
Could I Connect to Sewer Instead?
Atlanta’s fast-growing exurban counties are actively expanding sewer infrastructure. Before committing to a septic installation — especially an expensive ATU on Piedmont clay — it’s worth knowing whether sewer is already available or coming to your area.
This tool reflects general patterns in Atlanta’s growth counties and is not a substitute for checking directly with your county’s water/sewer authority. Sewer availability is ultimately determined by whether your specific address is within a served area, which the local utility can confirm definitively.
All twelve District 4 counties, and what differs between them, are compared on our District 4 septic permits page.
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Frequently Asked Questions
Who issues septic permits in Henry County, Georgia?
District 4 Public Health. Henry County Environmental Health is at 137 Henry Parkway, McDonough, (470) 661-0044.
How much is a septic permit in Henry County?
District 4 does not publish septic fee amounts. Fees are set at the county office, so call (470) 661-0044 for current pricing.
What should I have ready when calling about a Henry County septic permit?
Your parcel or tax ID, whether the property is on public water or a private well, and whether you need new construction, a repair, or a modification.
How long is a Henry County septic permit valid?
Twelve months from the date of issue, per Georgia DPH Chapter 511-3-1, which applies statewide.
Is sewer available in Henry County?
Henry is expanding sewer rapidly. Contact Henry County Water Authority at 770-957-6659 to ask whether service is available at your address or planned within three to five years.