Fresno Water Hardness & Quality Report (2026)
Water Hardness
180+ mg/L
Very Hardestimated · not lab-verified
Source
reservoir
pH Level
7.4
neutral = 7.0
Lead
0.007 mg/L
✓ Below action level
TDS
500 mg/L
Est. Daily Cost
$0.91
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 Fresno, your appliances are currently losing 45% efficiency due to mineral buildup.
| Appliance | In Fresno | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 4.7 yrs | 8.5 yrs | -45% |
| Washing Machine | 6.6 yrs | 12 yrs | -45% |
| Water Heater | 8.3 yrs | 15 yrs | -45% |
Regional Water Comparison
How Fresno compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Fresno, Texas | ≈ 180+ mg/L | 0 ppt | 🔴 Very Hard | reservoir |
| Sienna Plantation, Texas | ≈ 180+ mg/L | 11 ppt | 🔴 Very Hard | mixed |
| Missouri City, Texas | ≈ 120–179 mg/L | 0 ppt | 🟠 Hard | groundwater |
| Stafford, Texas | ≈ 180+ mg/L | 209.1 ppt | 🔴 Very Hard | reservoir |
| Pearland, Texas | ≈ 180+ mg/L | 498.8 ppt | 🔴 Very Hard | reservoir |
National Benchmark
How Fresno compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Fresno | ≈ 180+ mg/L | 🔴 High |
| USA National Avg | 151 mg/L | 🟠 Moderate |
| Scarsdale Top Rated | 0.02 mg/L | 🟢 None |
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What Makes Fresno's Water Unique?
Local geology and source profile
No official water utility data for Fresno, Texas could be located as of May 2026. Fresno is a small community in Fort Bend County, and no utility website, Consumer Confidence Report, EPA SDWIS database entry, or published water quality report was found for the area. Water may be provided by a Fort Bend County Municipal Utility District (MUD) or a regional supplier, but the specific utility name and service details could not be confirmed from available sources. Residents should contact Fort Bend County public works directly for accurate water quality information.
The Gulf Coast Chicot Aquifer underlies Fort Bend County, comprising Tertiary-Pleistocene calcareous marine sands. This aquifer accesses groundwater influenced by deep salt dome dissolution in the Fort Bend-Brazoria zone, introducing extreme evaporite mineral loads including elevated calcium, magnesium, and other dissolved solids. These calcareous marine formations with evaporite influence are associated with very hard water and extreme total dissolved solids (TDS), characteristic of Gulf Coast aquifer systems in this region.
Very hard water with high TDS causes extreme scale buildup in pipes, water heaters, dishwashers, and all water-using appliances, significantly reducing efficiency and lifespan. Taste may be noticeably affected by elevated mineral content. A whole-house water softener is strongly recommended, along with regular descaling of all appliances. Reverse osmosis filtration is advisable for drinking water to reduce dissolved solids. Residents are advised to contact their local utility directly for confirmed hardness values, treatment details, and current Consumer Confidence Reports.
Geology & Source: Gulf Coast Chicot Aquifer — Tertiary-Pleistocene calcareous marine sands influenced by deep salt dome dissolution; extreme evaporite mineral load in Fort Bend-Brazoria zone produces very hard water with high TDS
Other Texas Water Reports
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Frequently Asked Questions
Is Fresno's water safe to drink?
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How does Fresno compare to the USA average?
Data Sources & Methodology
Water quality data for Fresno 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.