2024 Water Quality Data — Fairfield County, Ohio
What's Really in Fairfield County, Ohio Tap Water?
Fairfield County draws from the Hocking River and local groundwater. Here's what the 2024 water quality data actually shows — and what it means for your Lancaster, Pickerington, or Canal Winchester home.
Get a Free Home Water TestKey Contaminants Found in Fairfield County Water
Data sourced from the City of Lancaster Utilities / Fairfield County Water District 2024 Annual Water Quality Report and EPA monitoring records.
| Contaminant | Detected Level | EPA Limit | Health Concern | Status |
|---|---|---|---|---|
| Water Hardness | 150–220 mg/L | No federal limit | Some of the hardest water in Central Ohio; severe scale buildup and appliance damage | Concern |
| Nitrate | 3.4 ppm | 10 ppm | Elevated from Fairfield County agricultural activity; higher than Columbus metro average | Moderate |
| Atrazine | Trace amounts | 3 ppb | Herbicide from corn and soybean farming; endocrine disruptor at elevated levels | Moderate |
| Total Trihalomethanes (TTHMs) | 35 ppb | 80 ppb | Byproduct of chlorine treatment; linked to cancer risk with long-term exposure | Moderate |
| Lead | Varies (older homes) | 15 ppb action level | Leaches from aging pipes and fixtures; no safe level for children | Concern |
| Chlorine | Up to 3.8 ppm | 4 ppm (legal max) | Taste/odor issues, skin and hair dryness, forms TTHMs as byproduct | Moderate |
| PFAS (Forever Chemicals) | Trace amounts (some wells) | 4 ppt (new EPA 2024) | Linked to immune, thyroid, and cancer risks; does not break down in the body | Concern |
Water Hardness
ConcernSome of the hardest water in Central Ohio; severe scale buildup and appliance damage
Nitrate
ModerateElevated from Fairfield County agricultural activity; higher than Columbus metro average
Atrazine
ModerateHerbicide from corn and soybean farming; endocrine disruptor at elevated levels
Total Trihalomethanes (TTHMs)
ModerateByproduct of chlorine treatment; linked to cancer risk with long-term exposure
Lead
ConcernLeaches from aging pipes and fixtures; no safe level for children
Chlorine
ModerateTaste/odor issues, skin and hair dryness, forms TTHMs as byproduct
PFAS (Forever Chemicals)
ConcernLinked to immune, thyroid, and cancer risks; does not break down in the body
What Hard Water Does to Your Fairfield County Home
At 150–220 mg/L, Fairfield County water is classified as very hard — more than double the national average.
Severe scale buildup — Fairfield County has some of the hardest water in Central Ohio
Dry, itchy skin and brittle hair after showering
Faded, stiff laundry — detergent doesn't lather well
Spots and film on dishes, glasses, and silverware
Shortened lifespan of dishwashers, washing machines, and water heaters
Higher energy bills — scale-coated water heaters use up to 29% more energy
$900/year
Hard water costs Fairfield County homeowners an estimated $900/year in extra energy and appliance repair costs.
Where Does Fairfield County Water Come From?
Primary provider: City of Lancaster Utilities / Fairfield County Water District
Water source: Hocking River (Lancaster), local groundwater wells (rural areas)
How to Fix Fairfield County Water Problems
Pure Aqua Columbus installs Westinghouse-authorized systems designed specifically for Central Ohio water conditions.
Water Softener
Fairfield County's 9–13 gpg hardness is among the highest in Central Ohio. A whole-house softener eliminates scale, protects appliances, and leaves skin and hair noticeably softer.
Removes:
Whole House Filter
Removes chlorine, TTHMs, atrazine, nitrates, and sediment at the point of entry — protecting every tap, shower, and appliance in your Fairfield County home.
Removes:
Alkaline RO System
Reverse osmosis removes PFAS, lead, nitrates, atrazine, and hardness minerals at the tap — delivering the purest drinking water possible for your Fairfield County family.
Removes:
Frequently Asked Questions
Is Fairfield County tap water safe to drink?
Fairfield County tap water meets all EPA legal limits and is considered safe by regulatory standards. However, it is among the hardest in Central Ohio (9–13 gpg) and has elevated nitrates and trace atrazine from agricultural activity. Many residents choose additional filtration for improved taste, odor, and long-term peace of mind.
How hard is Fairfield County Ohio water?
Fairfield County water averages 150–220 mg/L (9–13 grains per gallon) — classified as "very hard" and among the highest in the Columbus metro area. This causes significant scale buildup on pipes, appliances, and fixtures, as well as dry skin and hair.
Why does Fairfield County water have higher nitrates and atrazine?
Fairfield County has significant agricultural land, particularly corn and soybean farming. Fertilizer runoff elevates nitrates, and herbicide use introduces trace atrazine into the Hocking River watershed. While current levels are below EPA limits, a whole-house filter or RO system provides an additional layer of protection.
Who provides water to Fairfield County?
The City of Lancaster Utilities serves Lancaster and nearby areas, drawing from the Hocking River. The Fairfield County Water District serves rural areas using local groundwater wells. Communities like Pickerington and Canal Winchester near the Franklin County border may receive Columbus Water Works service.
More Fairfield County Water Resources
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