Copperas Cove Water Hardness & Quality Report (2026)
Water Hardness
9.3 grains per gallon
Source
mixed
pH Level
7.9
neutral = 7.0
Lead
0.003 mg/L
✓ Below action level
TDS
362.7 mg/L
Est. Daily Cost
$0.42
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 Copperas Cove, your appliances are currently losing 21% efficiency due to mineral buildup.
| Appliance | In Copperas Cove | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 4.4 yrs | 8.5 yrs | -48% |
| Washing Machine | 7.7 yrs | 12 yrs | -36% |
| Water Heater | 9.3 yrs | 15 yrs | -38% |
Regional Water Comparison
How Copperas Cove compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Copperas Cove, Texas | 158.5 mg/L | 6.4 ppt | 🟠 Hard | mixed |
| Fort Cavazos, Texas | 206 mg/L | 7.4 ppt | 🔴 Very Hard | mixed |
| Killeen, Texas | 433.5 mg/L | 12.2 ppt | 🔴 Very Hard | mixed |
| Harker Heights, Texas | 166.5 mg/L | 6.6 ppt | 🟠 Hard | mixed |
| Gatesville, Texas | 99 mg/L | 5.2 ppt | 🟡 Moderately Hard | mixed |
National Benchmark
How Copperas Cove compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Copperas Cove | 158.5 mg/L | 🟠 Moderate |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Copperas Cove's Water Unique?
Local geology and source profile
Copperas Cove, Texas, in Coryell County — a major central Texas military community (Copperas Cove is adjacent to Fort Cavazos — formerly Fort Hood — one of the largest US military installations in the world and the primary home of US Army armored forces; Copperas Cove is essentially a bedroom community for Fort Cavazos, and the city's economy and demographics are dominated by military personnel and their families), a diverse Coryell County community with a significant active-duty military, Hispanic-American, and African-American population, and a community in the central Texas Highland Lakes–Lampasas River Valley corridor — draws its municipal water supply via the City of Copperas Cove Water Division. Water hardness in Copperas Cove measures 158.5 mg/L — classified as hard.
Copperas Cove's hard supply reflects the central Texas Lampasas River watershed's calcareous Cretaceous geology. The Stillhouse Hollow Reservoir (Lampasas River) at Copperas Cove–Coryell County drains: the Cretaceous Glen Rose Limestone (highly calcareous limestone of the central Texas Edwards Plateau–Balcones zone); and the Trinity Group limestone (calcareous-moderate). City of Copperas Cove treatment produces the hard 158.5 mg/L.
At 158.5 mg/L, Copperas Cove residents face regular hard water challenges. Monthly descaling with citric acid solution is recommended. City of Copperas Cove Water Division consistently delivers water meeting all Texas TCEQ and EPA Safe Drinking Water Act requirements.
Geology & Source: Mixed supply from the Stillhouse Hollow Reservoir and Belton Lake (Lampasas River watershed) via the City of Copperas Cove Water Division (Coryell County/Fort Cavazos supply) — the Coryell County central Texas Fort Cavazos military corridor (Cretaceous calcareous Glen Rose Limestone and Trinity Aquifer — the calcareous central Texas Edwards Plateau–Blackland Prairie transition zone; Lampasas River supply with treatment); hard supply at 158.5 mg/L in Coryell County.