GUIDE · LAKE COUNTRY SEPTIC, COUNTY BY COUNTY
The Lake Oconee and Lake Sinclair septic guide: every county's rules in one place
- Lake Oconee & Lake Sinclair
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or call (678) 863-5620The short answer
What are the septic rules around Lake Oconee and Lake Sinclair?
Around Lake Oconee and Lake Sinclair, septic permits come from each county's Environmental Health office under Georgia rule 511-3-1. Tanks must sit 25 feet and drain fields 50 feet from normal lake level, the whole system must stay off Georgia Power's project boundary, and Greene County excludes land within 75 feet of Lake Oconee from septic lot minimums.
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One crew, raw ground to a working system
- Homes, lake lots and commercial properties around Lake Oconee & Lake Sinclair
- Septic systems and the clearing, grading, drainage and lines around them
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Key facts
Rules that apply on both lakes
Each row links to the agency, code or publisher it comes from. Tap a source to check it yourself.
| Topic | What it says | Source |
|---|---|---|
| Septic tank to lake | 25 feet minimum from lakes and impoundments; 50 feet from wells | Ga. Comp. R. & Regs. r. 511-3-1-.05, Septic Tanks (LII) |
| Drain field to lake | 50 feet minimum from normal water level; 100 feet from wells | Ga. Comp. R. & Regs. r. 511-3-1-.07, Absorption Fields (LII) |
| State buffer | 25 feet from the point of wrested vegetation | GA EPD: Field Guide for Determining the Presence of State Waters That Require a Buffer (2017), 2017 |
| Georgia Power, Sinclair | System and repair area entirely on the leased lot, outside the project boundary | Georgia Power: Lake Sinclair Dwellings and Additions guidelines (PDF) |
| Georgia Power, Oconee | No mechanical clearing or contour change in the 25-foot buffer without written approval | Georgia Power: Lake Oconee Shoreline Guidelines (PDF), 2026 |
| Lake Resources Office | 125 Wallace Dam Road, Eatonton; 706-484-7500; by appointment | Georgia Power Lakes: Shoreline Management (East Georgia Lakes office) |
| Permit life and inspection | Up to 12 months; no backfill or use before the county's final inspection | Ga. Comp. R. & Regs. r. 511-3-1-.03, General Requirements for On-Site Sewage Management Systems (LII) |
| Soil depth | 24 inches below conventional trenches; 12 inches with aerobic pretreatment or drip | GA DPH Manual for On-Site Sewage Management Systems (March 2026), Section F: Dispersal Systems, 2026 |
County by county
County-by-county septic rules around the lakes
| County | Environmental Health office | Permit path | Published septic fees | Sewer providers | Lake-specific rules | Sources |
|---|---|---|---|---|---|---|
| Putnam | 117 Putnam Drive, Suite C, Eatonton; (706) 485-8591, weekdays 8-4:30 (DPH's list shows 706-484-2914). | Well permit first if needed, then the septic construction or repair permit; Georgia Power lots also send the septic permit and site plan to Georgia Power. | None posted; call the office. | EPWSA around Eatonton (4-inch sewer tap $2,772 plus $1,810 development charge); Piedmont Water low-pressure sewer at Great Waters, Cuscowilla and the Highway 44 corridor. | Fronts both lakes. A 2024 news report quotes a 65-foot county lake setback; unconfirmed against the code. | 12345 |
| Greene | 1031 Apalachee Avenue, Greensboro; 706-453-4471; specialists in office 8:30-10 a.m. weekdays. | Septic letter or perc test from Environmental Health, required with the building permit; erosion plan and land disturbance permit within 200 feet of state waters. | $350 new-system inspection ($400 at 5+ bedrooms); $200 repair permit; $175 evaluation; $75 site plan review (Aug. 2024). | City of Greensboro in town (sewer counted available within 500 feet); Piedmont Water at Reynolds, Del Webb and The Landing; Harbor Club mostly septic. | Lot minimum 0.75 acre on public water or 1.5 acres on a well, not counting land within 75 feet of Lake Oconee's high-water line. | 1234567 |
| Morgan | 2005 South Main Street, Suite 200, Madison; 706-752-1266 option 3; short morning in-office hours. | Construction or repair permit; site plan review; Environmental Health inspects before approval. | $350 new-system inspection ($400 at five bedrooms); $200 repair; $50 location plan; $75 site plan; $75 expedited (Aug. 2024). | City of Madison (4-inch sewer tap $2,500) and Rutledge; the 2022 plan says most unincorporated land has no water or sewer. | About 25 miles of Lake Oconee shoreline; plan cites 0.6 acre for septic, 1.2 acres with a well. | 1234 |
| Baldwin | 100 Ireland Drive, Milledgeville; (478) 445-1591; weekdays 8-4:30. | Well permit first if needed; septic construction or repair permit; Sinclair lease lots file it with Georgia Power. | None posted; call the office. | City of Milledgeville (about 6,500 sewer customers) and Baldwin County Water and Sewer; no sewer documented for Sinclair subdivisions. | Sinclair's south shore, described in the 2023 plan as densely packed lots with frontage at a premium. | 1234 |
| Hancock | 516 Boland Street, Sparta; (706) 444-6616; specialist in the county Tuesdays and Thursdays only. | Well permit first if needed; septic construction or repair permit; Sinclair lease lots file it with Georgia Power. | None posted; call the office. | Sparta only, treated by land application; Scenic Shores, Holiday Shores and Island Creek run on their own wells. | The county plan says most homes are on septic; its lake strip includes many seasonal owners. | 1234 |
| Jasper | 825 Eatonton Street, Monticello; (706) 468-6850; weekdays 8-4:30. | Well permit first if needed; septic construction or repair permit. | None posted; call the office. | City of Monticello only; the county owns no sewer, and Shady Dale has water but no sewer. | No Oconee or Sinclair shoreline; Lake Jackson communities run on community water with no documented sewer. | 123 |
| Jones | 114 Forest Street, Gray; (478) 986-3164; weekdays 8-4:30. | Well permit first if needed; septic construction or repair permit. | None posted; call the office. | Jones County Water Systems (about 60 miles of sewer pipe) and the City of Gray, which sewers only part of town. | No lake shoreline; the county plan describes unserved homes with failing septic and yard backups. | 1234 |
Last updated 2026-10-13. Fees and office hours change; confirm with the county office before you apply.
Plain definitions
Lake-country terms
- Plant datum
- Plant datum is Georgia Power's elevation reference for its dams; FERC lists Lake Oconee at 435.0 feet plant datum, which sits 0.20 feet below NAVD88 sea level.↗
- Low-pressure sewer
- Low-pressure sewer is Piedmont Water's usual setup at Lake Oconee: a grinder pump at each house, owned by the homeowner, pushes slurry into a pressurized main.↗
- Lease lot
- A lease lot is shoreline land rented from Georgia Power; a Dennis Station Road lot off Twin Bridges Road on Sinclair was listed with a $1,200 annual lease.↗
The whole story
How the two lakes differ underground
Lake Oconee is the newer, bigger-money lake. FERC puts it at 18,188 acres behind Wallace Dam, and its gated golf communities brought private sewer with them: Piedmont Water lists Reynolds, Great Waters, Cuscowilla, Del Webb, The Landing and the Highway 44 corridor among its sewer areas. Even there the answer is lot by lot, and Harbor Club, outside Piedmont's list, is still building on septic. Off the gates, along Harmony Road or the Morgan County shore, it is septic, often on steep wooded lots.
Lake Sinclair is older, created in 1953, and its shoreline of roughly 417 miles is split among Putnam, Baldwin and Hancock. Its subdivisions, from Twin Bridges Road in Putnam to Island Creek outside Sparta, run on community or public water and individual septic tanks. Many sit on Georgia Power lease lots, where the utility wants the septic site plan and permit before it reviews a house, and its two published setback numbers for new homes disagree: 75 feet on the Sinclair sheet, 50 feet in the combined guidelines. Confirm with the Lake Resources Office before designing.
FAQ
Lake Oconee and Lake Sinclair septic questions
Straight answers, with the rule or record behind them. Still unsure? Call and ask the crew that digs.
(678) 863-5620Who issues septic permits around Lake Oconee?
The county Environmental Health office where the lot sits. On Lake Oconee that is Greene County in Greensboro, Morgan County in Madison or Putnam County in Eatonton; Hancock covers a small southern stretch near Wallace Dam. Georgia Power does not issue septic permits, but it reviews septic layouts on lots touching its land.
Who issues septic permits around Lake Sinclair?
Putnam County Environmental Health in Eatonton for the north and west shores, Baldwin County in Milledgeville for the south shore and Hancock County in Sparta for the east side. All three belong to the North Central Health District, which does not post septic fees online.
Source: Wikipedia: Lake Sinclair
Are Lake Sinclair homes on sewer?
Generally no. Sewer in Baldwin and Hancock is centered on Milledgeville and Sparta, and Hancock's lake subdivisions such as Scenic Shores and Island Creek run on their own wells. A 2018 Island Creek home, for example, is listed with public water and a septic tank.
Source: MLS listing via Lake Homes Realty: 207 Poinsettia Pl, Sparta GA (Island Creek, Lake Sinclair)
Which Lake Oconee communities have sewer?
Piedmont Water lists Reynolds at Lake Oconee, Great Waters, Cuscowilla, Del Webb at Lake Oconee, The Landing and Marina Bay, plus the Highway 44 corridor in north Putnam and south Greene. Within those, some homesites are still sold as septic required, so check each address.
What septic fees are published in the lake counties?
Greene and Morgan publish August 2024 schedules: $350 for a residential new-system inspection, $400 for larger homes, and $200 for a repair permit. Putnam, Baldwin, Hancock, Jasper and Jones are in the North Central Health District, which does not post fees, so call the county office.
Source: Greene County EH Fees (effective August 1, 2024), Northeast Health District
How close to the lake can a septic system go?
Georgia keeps septic tanks at least 25 feet and drain fields at least 50 feet from a lake's normal water level. Georgia Power's project boundary and buffer rules, and Greene County's 75-foot exclusion for lot size, often push the system farther back.
Source: Ga. Comp. R. & Regs. r. 511-3-1-.07, Absorption Fields (LII)
Is there one place to ask about Georgia Power lake rules?
Yes. Georgia Power's East Georgia Lakes office for Oconee and Sinclair is at 125 Wallace Dam Road in Eatonton, 706-484-7500, open weekdays by appointment. A valid Georgia Power permit is required for any activity on its land, leased or deeded.
Source: Georgia Power Lakes: Shoreline Management (East Georgia Lakes office)
Worth knowing
Septic and site work in all seven counties
A Class Septic Services installs and repairs septic, drip, aerobic and pump systems and does the excavation, clearing, grading, drainage and erosion control around them in Putnam, Greene, Morgan, Baldwin, Hancock, Jasper and Jones counties. Call (678) 863-5620.
Keep going
Lakes, counties, services and the rest of the guides
- Lake Oconee septic and site work
- Lake Sinclair septic and site work
- Putnam County
- Greene County
- Morgan County
- Baldwin County
- Hancock County
- Jasper County
- Jones County
- Septic system installation
- Septic repair
- Georgia Power shoreline rules for septic
- Georgia septic permit process
- Septic for a Georgia lake house
- Drip vs conventional septic
- Septic installation cost in Georgia
- Aerobic septic maintenance
- Signs a drain field is failing
Sources
Where these facts come from
Rules, costs and local facts on this page link to the agency, code or publisher that states them. Cost figures are third-party market ranges, not our prices — estimates are free.
Reviewed by A Class Septic Services · Last updated
- 1Ga. Comp. R. & Regs. r. 511-3-1-.03, General Requirements for On-Site Sewage Management Systems (LII)
- 2Ga. Comp. R. & Regs. r. 511-3-1-.05, Septic Tanks (LII)
- 3Ga. Comp. R. & Regs. r. 511-3-1-.07, Absorption Fields (LII)
- 4GA DPH Manual for On-Site Sewage Management Systems (March 2026), Section F: Dispersal Systems (2026)
- 5GA EPD: Field Guide for Determining the Presence of State Waters That Require a Buffer (2017) (2017)
- 6Georgia Power: Lake Sinclair Dwellings and Additions guidelines (PDF)
- 7Georgia Power: Bartletts Ferry, Jackson & Sinclair Shoreline Guidelines (PDF)
- 8Georgia Power: Lake Oconee Shoreline Guidelines (PDF) (2026)
- 9Georgia Power Lakes: Shoreline Management (East Georgia Lakes office)
- 10Federal Register, June 18, 2018: FERC notice, Wallace Dam Hydroelectric Project relicensing application (2018)
- 11Wikipedia: Lake Sinclair
- 12Piedmont Water Company: Wastewater Services
- 13Piedmont Water Company: Grinder Pumps
- 14MLS listing via Lake Homes Realty: 1038 Dennis Station Rd, Eatonton GA (Lake Sinclair, off Twin Bridges Rd)
- 15MLS listing via Lake Homes Realty: 207 Poinsettia Pl, Sparta GA (Island Creek, Lake Sinclair)
- 16MLS listing via Lake Homes Realty: 1270 Glen Eagle Drive, Greensboro GA (Harbor Club)
- 17North Central Health District: Putnam County Environmental Health Department
- 18Georgia DPH: Environmental Health County Phone Numbers
- 19EPWSA Schedule of Rates, Fees, and Penalties (5.16.25, corrected) (2025)
- 20Eatonton Messenger, July 3, 2024: Putnam BOC changes to setback ordinance (2024)
- 21Northeast Health District: Greene County locations (Environmental Health)
- 22Greene County, GA: Septic Tank Permits
- 23Greene County EH Fees (effective August 1, 2024), Northeast Health District (2024)
- 24Greene County Board of Health Lot Size Ordinance (effective Sept 7, 2018) (2018)
- 25Greene County, GA: Erosion Control Permit Requirements
- 26Greensboro Code § 30-89, Sewer use requirements (Municode)
- 27Northeast Health District: Morgan County locations (Environmental Health)
- 28Morgan County EH fees, effective August 1, 2024 (Northeast Health District) (2024)
- 29Morgan County & Cities of Bostwick, Buckhead and Rutledge 2022-2036 Comprehensive Plan (GA DCA) (2022)
- 30City of Madison, GA Schedule of Fees (Exhibit A, approved June 24, 2026) (2026)
- 31North Central Health District: Baldwin County Environmental Health Department
- 32City of Milledgeville: Water & Sewer
- 33Baldwin County, GA: Water/Sewer
- 342023 Baldwin County Joint Comprehensive Plan (Baldwin County and City of Milledgeville), GA DCA (2023)
- 35North Central Health District: Hancock County Environmental Health Department
- 36Hancock County Joint Comprehensive Plan 2021-2026 (Hancock County and City of Sparta), GA DCA (2021)
- 37City of Sparta, GA: Utilities
- 38EPA Envirofacts SDWIS: public water systems in Hancock County (PWSID GA141xxxx)
- 39North Central Health District: Jasper County Environmental Health Department
- 40Jasper County, Monticello & Shady Dale Joint Comprehensive Plan 2023-2028 (GA DCA) (2023)
- 41City of Monticello: Water and Sewer (via Wayback, 2026-05-16 capture)
- 42North Central Health District: Jones County Environmental Health Department
- 43Jones County, GA: Jones County Water Systems
- 44City of Gray, GA: Water/Sewer Department
- 45Joint Comprehensive Plan for Jones County and the City of Gray (2017 update), GA DCA (2017)
Ready when you are
Rather have a pro look at it? Call the crew that digs.
Lake Oconee and Lake Sinclair touch five counties, and the lake-country trade area adds Jasper and Jones. Each has its own health office, hours, fees and sewer map. This guide puts them side by side with the Georgia Power and state rules that apply on both lakes.
(678) 863-5620- Lake Oconee & Lake Sinclair
- Residential & commercial
- 10% off for military & first responders
Free estimate
or call (678) 863-5620