Septic System Installation · Lake Oconee
Septic installation for Lake Oconee homes and homesites, permitted through the Greene, Putnam or Morgan County health office that covers the lot.
- Lake Oconee & Lake Sinclair
- Residential & commercial
- 10% off: military & first responders
Get a free estimate
or call (678) 863-5620The short answer
Who permits and installs a new septic system on Lake Oconee?
The county the lot sits in issues the permit: Greene County Environmental Health in Greensboro, Morgan County's office in Madison, or Putnam County's in Eatonton. A Class Septic builds the tank and field to that permit, holds the tank 25 feet and the field 50 feet from the lake, and leaves it open for the final inspection.↗↗↗↗
Reviewed by A Class Septic Services · Last updated
Local facts
Lake Oconee septic permits at a glance
Each row links to the agency, code or publisher it comes from. Tap a source to check it yourself.
| Topic | What it says | Source |
|---|---|---|
| Greene County shore (Reynolds, Harbor Club, Parks Mill) | Greene County Environmental Health, 1031 Apalachee Ave, Greensboro, 706-453-4471; Northeast Health District | Northeast Health District: Greene County locations (Environmental Health) |
| Putnam County shore (Great Waters, Cuscowilla, Harmony Road) | Putnam County Environmental Health, 117 Putnam Drive, Suite C, Eatonton; North Central Health District | North Central Health District: Putnam County Environmental Health Department |
| Morgan County shore (Oconee Shores, Buckhead) | Morgan County Environmental Health, 2005 South Main Street, Suite 200, Madison; Northeast Health District | Northeast Health District: Morgan County locations (Environmental Health) |
| Two health districts on one lake | Greene and Morgan answer to the Northeast Health District; Putnam answers to the North Central Health District, so forms and fee schedules differ across the water | North Central Health District: Putnam County Environmental Health Department |
| Greene new-system inspection fee | $350, or $400 for five or more bedrooms (effective Aug. 1, 2024) | Greene County EH Fees (effective August 1, 2024), Northeast Health District |
| Morgan new-system inspection fee | $350 residential; $75 site plan review (effective Aug. 1, 2024) | Morgan County EH fees, effective August 1, 2024 (Northeast Health District) |
| Tank and field setbacks from the lake | Tank 25 ft from the lake; absorption field 50 ft from the normal water level | Ga. Comp. R. & Regs. r. 511-3-1-.05, Septic Tanks (LII) |
The Lake Oconee story
Same lake, different rulebooks
Lake Oconee is one body of water, but a septic permit on it is written by whichever county holds your deed. A homesite off Linger Longer Road answers to Greensboro. A lot near Harmony Road or the Great Waters gate goes through Eatonton. Oconee Shores, with its Buckhead mailing address, goes to Madison.↗↗
Greene is the strict one for lot size. Its Board of Health wants 0.75 acre on public water or 1.5 acres on a private well, and none of the ground within 75 feet of the lake's high-water line counts toward it. On a narrow lakefront lot that strip can be a fifth of the deed.↗
The next question is sewer. Piedmont Water runs low-pressure sewer in Reynolds, Great Waters and Cuscowilla and along the Highway 44 corridor, and Georgia makes a lot connect when sewer is within 200 feet of the property line. Inside those gates some streets are sewered and some homesites are sold septic-required, so we check before anyone designs a field.↗↗
On the record
- FERC's 2018 relicensing notice puts Lake Oconee at 18,188 acres at full pond, elevation 435.0 feet Plant Datum, the level a lake setback is measured from in practice.↗
- In Greene County the building office will not take a permit application for a septic lot until Environmental Health has issued its approval letter.↗
Permits · Greene, Putnam or Morgan County Environmental Health, depending on the lot
From lake lot to approved system
- 01
Confirm whether Piedmont sewer is within 200 feet; if it is, the lot must connect instead of installing septic.↗
- 02
Get the soil evaluation and the county construction permit before any part of the system goes in; the county has 20 days to act on a complete application, and the permit lasts up to 12 months.↗
- 03
Size the tank to the bedrooms: 1,000 gallons covers one to four, plus 250 gallons for each bedroom past four, in a two-compartment tank with an effluent filter.↗
- 04
If clearing for the system reaches Georgia Power land, apply first: Georgia Power considers tree removal to make room for a septic installation and requires 1:1 native replanting.↗
- 05
Leave the work uncovered until the county's final inspection and written approval; grading over the field afterward voids that approval.↗
Georgia rule Ga. Comp. R. & Regs. r. 511-3-1-.07
“not less than fifty feet (50') from geothermal boreholes and the normal water level of any impoundment, tributary, stream, or other body of water”
Soil & terrain
What the shovel finds around the lake
Most Oconee lots sit on Piedmont red clay over weathered rock. Deep, well-drained Cecil and Pacolet on the ridges usually take a conventional field. The trouble is the low, flat spots near coves, where a soil like Helena holds a perched water table.↗
That is why two lots on the same street can get different systems. One gets gravity trenches, and the one next door needs a pump, drip lines or an aerobic unit.
Cecil↗
DPH lists it at 0-25% slopes, bedrock and seasonal water below 60-72 inches, suitability code A.
Pacolet↗
Code A, but mapped on slopes from 2% up to 80%, so slope often decides the design.
Helena↗
Seasonal high water at 18-30 inches; DPH rates the series unsuitable for conventional fields.
- Soil series · USDA NRCS
What it costs
What a new lake system tends to cost
Conventional septic installation
$3,590-$12,463 (most around $8,016)
Typical market range — HomeAdvisor: Septic System Installation Cost (updated Jun 20, 2026), 2026
Aerobic septic system
$10,000-$20,000
Typical market range — HomeAdvisor: Septic System Installation Cost (updated Jun 20, 2026), 2026
Drip septic system
$8,000-$18,000
Typical market range — HomeAdvisor: Septic System Installation Cost (updated Jun 20, 2026), 2026
Greene or Morgan new-system inspection
$350-$400
Typical market range — Greene County EH Fees (effective August 1, 2024), Northeast Health District, 2024
What moves the price
These are third-party typical market ranges, not our prices. Every job is quoted after we see it — estimates are free.
Free estimate: (678) 863-5620- 01How much of the lot the 75-foot Greene strip and the 50-foot field setback eat up
- 02Slope between the house and the only usable soil
- 03Whether the field needs a pump, drip lines or aerobic pretreatment
- 04Clearing, haul-off and access down a wooded drive
FAQ
Lake Oconee septic installation questions
Straight answers, with the rule or record behind them. Still unsure? Call and ask the crew that digs.
(678) 863-5620How close to Lake Oconee can a septic system go?
Georgia's rules keep the tank 25 feet from the lake and the absorption field 50 feet from its normal water level, plus 100 feet from any well.
Source: Ga. Comp. R. & Regs. r. 511-3-1-.07, Absorption Fields (LII)
Why does my Greene County lot need more acreage than the deed suggests?
Greene's lot-size ordinance does not count land within 75 feet of Lake Oconee's high-water line toward the 0.75-acre or 1.5-acre septic minimum.
Source: Greene County Board of Health: Lot Size Ordinance (effective Sept 7, 2018)
My homesite is in Reynolds. Do I even need septic?
Maybe not. Piedmont Water lists Reynolds, Great Waters and Cuscowilla among its sewer communities, and Georgia requires connection when sewer is within 200 feet. Some homesites there are still marketed as septic-required.
Does Georgia Power have to approve my septic system on Lake Oconee?
Only if the work touches its land or the 25-foot buffer. Lake Oconee lots are deeded down to the project boundary, and no clearing or regrading can cross into it without Georgia Power's written approval.
Source: Georgia Power: Lake Oconee Shoreline Guidelines (PDF)
Does Georgia Power charge for a construction permit?
No. Georgia Power says its construction permits carry no fee, though owners of deeded lakefront sign a user agreement with it.
How big a tank does a five-bedroom lake house need?
At least 1,250 gallons: 1,000 for the first four bedrooms plus 250 for the fifth, and 50% more if the kitchen has a garbage grinder.
Source: Ga. Comp. R. & Regs. r. 511-3-1-.05, Septic Tanks (LII)
Nearby areas
Septic installation around the lake
- Greensboro septic & sewerGreene County seat, home of the EH office for the east shore.
- Eatonton septic & sewerPutnam County permits for the west shore and Lake Sinclair.
- Madison septic & sewerMorgan County permits for the north end of the lake.
- Union Point septic & sewerGreene County farm ground east of the lake.
- Lake Sinclair septic & sewerThe lake below Wallace Dam, where most lots are Georgia Power leases.
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
- 1Northeast Health District: Greene County locations (Environmental Health)
- 2Northeast Health District: Morgan County locations (Environmental Health)
- 3North Central Health District: Putnam County Environmental Health Department
- 4Ga. Comp. R. & Regs. r. 511-3-1-.07, Absorption Fields (LII)
- 5Greene County EH Fees (effective August 1, 2024), Northeast Health District
- 6Morgan County EH fees, effective August 1, 2024 (Northeast Health District)
- 7Ga. Comp. R. & Regs. r. 511-3-1-.05, Septic Tanks (LII)
- 8Greene County Board of Health: Lot Size Ordinance (effective Sept 7, 2018)
- 9Piedmont Water Company: Wastewater Services
- 10Ga. Comp. R. & Regs. r. 511-3-1-.03, General Requirements for On-Site Sewage Management Systems (LII)
- 11Federal Register, June 18, 2018: FERC notice, Wallace Dam Hydroelectric Project relicensing application
- 12Greene County, GA: Septic Tank Permits
- 13Georgia Power: Lake Oconee Shoreline Guidelines (PDF)
- 14GA DPH Manual for On-Site Sewage Management Systems (March 2026), Section C: Soil Information, Table 2.C
- 15HomeAdvisor: Septic System Installation Cost (updated Jun 20, 2026)
- 16Georgia Power Lakes: FAQs & Resources
Ready when you are
Building on Lake Oconee? Put the septic plan first.
Send us the plat and the house plan. We will walk the lot, tell you which county office and which system type to expect, and quote the install. Military members and first responders get 10% off.
(678) 863-5620- Lake Oconee & Lake Sinclair
- Residential & commercial
- 10% off for military & first responders
Free estimate
or call (678) 863-5620