Gatesville Water Hardness & Quality Report (2026)
Water Hardness
~120–179 mg/L
Hardestimated · not lab-verified
Source
reservoir
pH Level
7.5
neutral = 7.0
Lead
0.002 mg/L
✓ Below action level
TDS
207.4 mg/L
Est. Daily Cost
$0.40
energy & soap waste
Source: See methodology section below · 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 Gatesville, your appliances are currently losing 20% efficiency due to mineral buildup.
| Appliance | In Gatesville | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 6.8 yrs | 8.5 yrs | -20% |
| Washing Machine | 9.6 yrs | 12 yrs | -20% |
| Water Heater | 12 yrs | 15 yrs | -20% |
Regional Water Comparison
How Gatesville compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Gatesville, Texas | ≈ 120–179 mg/L | 8 ppt | 🟠 Hard | reservoir |
| Fort Cavazos, Texas | ≈ 180+ mg/L | 7.4 ppt | 🔴 Very Hard | mixed |
| Killeen, Texas | ≈ 180+ mg/L | 39.8 ppt | 🔴 Very Hard | reservoir |
| Copperas Cove, Texas | ≈ 120–179 mg/L | 36.8 ppt | 🟠 Hard | reservoir |
| Harker Heights, Texas | ≈ 180+ mg/L | 36.8 ppt | 🔴 Very Hard | reservoir |
National Benchmark
How Gatesville compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Gatesville | ≈ 120–179 mg/L | 🟠 Moderate |
| USA National Avg | 151 mg/L | 🟠 Moderate |
| Scarsdale Top Rated | 0.02 mg/L | 🟢 None |
Bring Scarsdale-quality water to your Gatesville home
Shop water softeners on Amazon.com →
What Makes Gatesville's Water Unique?
Local geology and source profile
The City of Gatesville utility supplies drinking water to residents in Gatesville, Coryell County, Texas (ZIP 76528). The city purchases its surface water supply from neighboring systems, notably Coryell City Water Supply District located at 9440 FM 929. While specific treatment plant names aren't provided, the Coryell City Water Supply District handles the initial treatment of water drawn from reservoirs within the Brazos River watershed in Central Texas before it's distributed to Gatesville residents.
The water's mineral content is heavily influenced by the region's geology. Central Texas is characterized by Cretaceous limestone formations, including areas associated with the Trinity Aquifer. As water interacts with these soluble carbonate rocks and karst terrains, it dissolves minerals like calcium and magnesium, leading to a naturally hard water profile. This geological makeup is typical for the region's sedimentary rock layers.
Homeowners often notice the effects of this moderately mineralized water on their appliances. Scale buildup can be particularly problematic for water heaters, dishwashers, and washing machines, potentially shortening their lifespan and reducing efficiency. You might also find that soap doesn't lather as easily, and spots can appear on glassware. To combat this, many households find a water softener beneficial. Regular descaling of fixtures with vinegar and annual pipe inspections are also good practices.
Geology & Source: Cretaceous limestone; Trinity Aquifer; soluble carbonate rocks and karst features produce hard water
Other Texas Water Reports
Report an Issue
Notice an error or missing data? Help us keep this page accurate. If you spot incorrect water hardness, outdated utility info, or missing details, please let us know.
All reports are reviewed by our team. Thank you for supporting data quality!
Frequently Asked Questions
Is Gatesville's water safe to drink?
Do I need a water softener in Gatesville?
How does Gatesville compare to the USA average?
Data Sources & Methodology
Water quality data for Gatesville is derived from geographic and geological modelling of the surrounding region. No federal monitoring station data was available for this location.
Water Hardness
Modelled estimate based on state-level USGS geological survey data for this region. No direct USGS Water Quality Portal measurement was matched to this city — the value reflects a statistical range calibrated to the state's dominant rock types and typical source water characteristics.
pH
Estimated from regional geology and source water characteristics. pH is correlated with water hardness and local bedrock — values may differ from utility-reported figures.
TDS — Total Dissolved Solids
Estimated using a derived ratio from water hardness and regional conductance profiles. TDS in natural water correlates strongly with total mineral content including hardness ions.
PFAS — Perfluoroalkyl and Polyfluoroalkyl Substances
EPA UCMR5 (5th Unregulated Contaminant Monitoring Rule, 2023–2025) — sum of PFAS compounds detected at the public water system serving this city. A value of 0 indicates the system was sampled with no detection above reporting limits.
Lead
Modelled estimate based on the EPA Lead and Copper Rule 90th-percentile tap-sample methodology. No publicly available per-city lead dataset with sufficient national coverage exists. Values are a conservative baseline derived from city population tier and infrastructure age — all estimates are maintained below the EPA action level of 0.015 mg/L.
Appliance Lifespan
Calculated from water hardness using a linear degradation model. Baseline lifespans represent soft-water performance (kettle: 8.5 yrs, washing machine: 12.0 yrs, water heater: 15.0 yrs). Hard water mineral scale progressively reduces operational life in direct proportion to hardness concentration.