South Lebanon, OH
South Lebanon runs 8 grains per gallon through Warren County Water & Sewer, which puts it in the hard band. Hard, but not extreme. It is enough to leave scale in a water heater over time, which is what shortens its life. Lime softened at the Franklin Area and Richard Renneker plants.
See every city in Warren County.
Local water profile
8 grains per gallon, hard water, supplied by Warren County Water & Sewer.
South Lebanon neighborhoods we serve
- Historic Peters Cartridge site
- Rogers Park
South Lebanon water is 8 grains per gallon.
That is classed as hard water. It comes from Warren County Water & Sewer, per the Warren County 2025 Water Quality Report.
- Hardness
- 8 grains per gallonHard
- Utility
- Warren County Water & Sewer
- Source
- 24 wells across five wellfields
- Treatment
- Lime softened at the Franklin Area and Richard Renneker plants.
- Worth knowing
- South Lebanon retired its own village wells, so water now reaches the village through the regional system rather than from a plant in town. Addresses on the edge of the village can sit on a different supply, which is why we test at the tap.
Source: Warren County 2025 Water Quality Report, 2025 reporting year. Hardness bands follow the Water Quality Association scale: soft under 3.5 grains, moderate 3.5 to 7, hard 7 to 10.5, very hard above 10.5.
This is hard water. It will not ruin anything overnight, but scale accumulates inside the water heater over years, which is what shortens its life.
At 8 grains, for a four-person household using about 300 gallons a day. Fewer people or a more efficient softener uses less.
Hard on the Water Quality Association scale. Soft is under 3.5, hard starts at 7, very hard above 10.5.
How hard is the water in South Lebanon, OH?
Water in South Lebanon, OH is 8 grains per gallon, which is classed as hard water. It is supplied by Warren County Water & Sewer from 24 wells across five wellfields, per the Warren County 2025 Water Quality Report (2025).
Who supplies the water in South Lebanon, OH?
South Lebanon is served by Warren County Water & Sewer. The water comes from 24 wells across five wellfields. Lime softened at the Franklin Area and Richard Renneker plants.
Do I need a water softener in South Lebanon, OH?
At 8 grains per gallon, South Lebanon water is hard. Water above 7 grains per gallon causes scale in water heaters and fixtures and reduces soap lather, which is the point at which most homes benefit from a softener.
What parts of South Lebanon do you cover?
All of South Lebanon, including Historic Peters Cartridge site and Rogers Park. Flat-rate pricing across the whole service area, with no travel charge between neighborhoods.
How much salt will a softener use in South Lebanon?
At 8 grains per gallon, a four-person household using roughly 300 gallons a day goes through about 6 forty-pound bags of softener salt a year. Smaller households and higher-efficiency softeners use less.
Is anything unusual about South Lebanon water?
South Lebanon retired its own village wells, so water now reaches the village through the regional system rather than from a plant in town. Addresses on the edge of the village can sit on a different supply, which is why we test at the tap.
South Lebanon, OH: ZIP Codes We Serve
We install and service water treatment systems across 45039, 45065.
South Lebanon, OH: Local Landmarks
Homes near Peters Cartridge Company, Rogers Park, Deerfield Heritage Park, Oeders Park, Willard E. Spicer Memorial Park and Little Miami State Park all draw the same municipal supply.
South Lebanon, OH: Nearby Streets
Our crews work Little Turtle Drive, Stoney Path Court, Creek Park Drive, Riverstone Drive, Vista Ridge Drive, West Broadway Street, High Street and River View Court regularly.
South Lebanon, OH in the Greater Cincinnati area
South Lebanon sits in Warren County, part of the Greater Cincinnati area. Water here is supplied and treated at the county and municipal level, so hardness and treatment vary street to street across the region rather than following one regional average. That is why we test at the property before recommending a system. See every community we serve in Warren County.
What we install in South Lebanon

Water Softener Install
Sized to your grain count, installed by our own licensed crew

Complete Home (City Water)
Softens every drop. Filters every tap. Polishes your drinking water

Complete Home (Well Water)
The well-water version, sized for iron, sulfur, and high hardness

Iron and Sulfur Removal
Clears orange staining and rotten egg smell at the source

Reverse Osmosis
Drinking water only. Installed under the kitchen sink

Sediment Filter
Protects every system downstream from grit and rust

Water Testing
Free, measured at your tap, before anyone recommends equipment
An Ohio business, local install crews
- Same flat price before any recommendation
- Licensed, insured, locally-trained install team
- Lifetime warranty on every whole-home tank
- Transparent flat-rate pricing, no surprise add-ons
- Call back in about 5 minutes during office hours
Get your install quote in South Lebanon
A flat quote for your address, in writing.
Ready for clean water in South Lebanon?
Same flat price. Free installation. Lifetime warranty.