Troy Water Hardness & Quality Report (2026)
Water Hardness
6.5 grains per gallon
Source
river
pH Level
7.6
neutral = 7.0
Lead
0.002 mg/L
✓ Below action level
TDS
188.6 mg/L
Est. Daily Cost
$0.30
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 Troy, your appliances are currently losing 15% efficiency due to mineral buildup.
| Appliance | In Troy | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 5.9 yrs | 8.5 yrs | -31% |
| Washing Machine | 9.5 yrs | 12 yrs | -21% |
| Water Heater | 11.1 yrs | 15 yrs | -26% |
Regional Water Comparison
How Troy compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Troy, Missouri | 112 mg/L | 4 ppt | 🟡 Moderately Hard | river |
| Wentzville, Missouri | 267.5 mg/L | 8 ppt | 🔴 Very Hard | river |
| Lake Saint Louis, Missouri | 134.5 mg/L | 4.6 ppt | 🟠 Hard | river |
| O'Fallon, Missouri | 279 mg/L | 8.3 ppt | 🔴 Very Hard | river |
| Dardenne Prairie, Missouri | 289.5 mg/L | 8.5 ppt | 🔴 Very Hard | river |
National Benchmark
How Troy compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Troy | 112 mg/L | 🟡 Low |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Troy's Water Unique?
Local geology and source profile
Troy, Missouri, in Lincoln County — a Lincoln County city adjacent to Wentzville and Elsberry on the Cuivre River in east-central Missouri — receives its water from the City of Troy Water Department, drawing from the Cuivre River through the east-central Missouri distribution.
The moderately hard 112 mg/L hardness and TDS of 188.6 mg/L reflect the Lincoln County Cuivre River supply's moderate character — the Ordovician St. Peter Sandstone is largely insoluble but the overlying Mississippian Burlington Limestone and Silurian Bainbridge Formation contribute modest calcareous mineral content (compare Wentzville MO: 109/182 in St. Charles County comparable; Elsberry MO: 115/194 in Lincoln County comparable; Troy consistent moderate from the same Lincoln County Cuivre River Ordovician-Mississippian supply). The Cuivre River at Lincoln County — Ordovician St. Peter Sandstone (insoluble — dilutant), Mississippian Burlington Limestone (calcareous — primary hardness contributor), and Quaternary Cuivre alluvium (slightly calcareous — minor TDS).
At 112 mg/L with TDS 189, Troy's water is moderately hard — mild scale buildup in appliances. Semi-annual descaling is appropriate. The PFAS level of 4.0 ppt is moderate and well-managed. Review the City of Troy's annual water quality report for the latest contaminant monitoring data.
Geology & Source: Troy in Lincoln County draws from the City of Troy Water on the Cuivre River (Lincoln County, east-central Missouri) — the Cuivre River at Lincoln County drains Ordovician St. Peter Sandstone (insoluble) and Mississippian Burlington Limestone (calcareous) — Missouri Lincoln County Cuivre River Ordovician-Mississippian supply produces moderately hard water at 112 mg/L with TDS 188.6 mg/L.