Fort Thomas Water Hardness & Quality Report (2026)
Water Hardness
10.9 grains per gallon
Source
river
pH Level
8.2
neutral = 7.0
Lead
0.006 mg/L
✓ Below action level
TDS
421.9 mg/L
Est. Daily Cost
$0.50
energy & soap waste
Source: USGS Water Quality Portal · Updated 2026
0–60
mg/L
Soft
61–120
mg/L
Moderately Hard
121–180
mg/L
Hard
180+
mg/L
Very Hard
Appliance Damage Report
In Fort Thomas, your appliances are currently losing 25% efficiency due to mineral buildup.
| Appliance | In Fort Thomas | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 3.5 yrs | 8.5 yrs | -59% |
| Washing Machine | 6.7 yrs | 12 yrs | -44% |
| Water Heater | 8.2 yrs | 15 yrs | -45% |
Regional Water Comparison
How Fort Thomas compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Fort Thomas, Kentucky | 186 mg/L | 5.9 ppt | 🔴 Very Hard | river |
| Newport, Kentucky | 197 mg/L | 6.1 ppt | 🔴 Very Hard | river |
| Covington, Kentucky | 132 mg/L | 4.6 ppt | 🟠 Hard | river |
| Norwood, Ohio | 255.5 mg/L | 10.1 ppt | 🔴 Very Hard | river |
| Cincinnati, Ohio | 196.5 mg/L | 7.7 ppt | 🔴 Very Hard | river |
National Benchmark
How Fort Thomas compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Fort Thomas | 186 mg/L | 🔴 High |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Fort Thomas's Water Unique?
Local geology and source profile
Fort Thomas, Kentucky, in Campbell County — a Campbell County city adjacent to Newport and Highland Heights on the Ohio River across from Cincinnati in northern Kentucky — receives its municipal water from the Northern Kentucky Water District (NKWD), drawing from the Ohio River at the NKWD treatment plant (Campbell County) through the Northern Kentucky distribution system.
The hard 186 mg/L hardness and TDS of 421.9 mg/L reflect the northern Kentucky Ohio River supply's strong Appalachian carbonate character — consistent with other NKWD communities (Edgewood: ~180 mg/L; Florence: ~190 mg/L). The Ohio River at Campbell County drains the Appalachian Plateau and Interior Low Plateaus — Mississippian St. Louis Limestone (the dominant Kentucky carbonate platform — very high purity), Ordovician Lexington Limestone (very calcareous — the Blue Grass Region limestone), and Silurian Brassfield Formation (calcareous). The cumulative Ordovician-Mississippian pure Kentucky carbonate produces the hard Northern Kentucky Ohio River supply.
At 186 mg/L, Fort Thomas' water is hard — scale builds steadily in kettles and appliances, dishwashers benefit from rinse aid, and water heaters should be descaled annually. Monthly descaling is recommended. The PFAS level of 5.9 ppt warrants a certified drinking water filter — the Campbell County north Kentucky industrial corridor and the Ohio River PFAS legacy from upstream Cincinnati-Ohio Valley manufacturing contribute to Fort Thomas' readings.
Geology & Source: Fort Thomas in Campbell County draws from the Northern Kentucky Water District on the Ohio River (Campbell County, north Kentucky) — the Ohio at Campbell County drains the Appalachian Plateau (Mississippian St. Louis Limestone, Ordovician Lexington Limestone, Silurian Brassfield calcareous) — Kentucky Campbell County Ohio River Mississippian-Ordovician carbonate watershed produces hard water at 186 mg/L with TDS 421.9 mg/L.