Spring Water Hardness & Quality Report (2026)
Water Hardness
~120–179 mg/L
Hardestimated · not lab-verified
Source
reservoir
pH Level
7.4
neutral = 7.0
Lead
0.007 mg/L
✓ Below action level
TDS
242 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 Spring, your appliances are currently losing 20% efficiency due to mineral buildup.
| Appliance | In Spring | 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 Spring compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Spring, Texas | ≈ 120–179 mg/L | 10.5 ppt | 🟠 Hard | reservoir |
| The Woodlands, Texas | ≈ 120–179 mg/L | 0 ppt | 🟠 Hard | reservoir |
| Aldine, Texas | ≈ 120–179 mg/L | 5.8 ppt | 🟠 Hard | mixed |
| Humble, Texas | ≈ 180+ mg/L | 30.3 ppt | 🔴 Very Hard | reservoir |
| Tomball, Texas | ≈ 120–179 mg/L | 0 ppt | 🟠 Hard | groundwater |
National Benchmark
How Spring compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Spring | ≈ 120–179 mg/L | 🟠 Moderate |
| USA National Avg | 151 mg/L | 🟠 Moderate |
| Scarsdale Top Rated | 0.02 mg/L | 🟢 None |
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What Makes Spring's Water Unique?
Local geology and source profile
Spring, Texas, receives its drinking water from Harris County Municipal Utility Districts — including HCMUD 530 and HCMUD 43 — which draw from groundwater sources in the Gulf Coast Aquifer System, primarily the Chicot and Evangeline aquifers. Treatment occurs at local facilities such as the Brushy Creek Water Treatment Facility, serving thousands of residents in the Spring community near The Woodlands in northern Harris County. These utilities provide potable water meeting EPA legal standards, with regular monitoring for contaminants.
The watershed encompasses the coastal plain of southeast Texas, where rainwater infiltrates through unconsolidated sediments into the Gulf Coast Aquifer. The Pleistocene Chicot sands and clays overlie the deeper Evangeline Aquifer, and Cretaceous Edwards-Trinity Plateau Aquifer limestone and dolomite influence blending in parts of Harris County. As water dissolves calcium and magnesium from ancient marine deposits and karst features over long residence times in confined aquifer layers, the result is a characteristically hard, mineral-rich groundwater supply.
Scale buildup is the primary concern at this hardness level — clogging pipes, reducing water heater efficiency by up to 20–30%, and leaving spots on glassware and fixtures. Water heaters, dishwashers, washing machines, and coffee makers are most affected, with mineral deposits shortening lifespan and raising energy costs. Annual descaling of heaters, vinegar soaks for showerheads, and rinse aids in dishwashers all help. A water softener is strongly recommended to prevent these effects and extend appliance life. Harris County MUD testing shows compliance with EPA legal limits; seven substances have been flagged as exceeding health advocacy guidelines, including TTHMs and radium from natural deposits. The 2023 CCR for HCMUD 530 reports hardness averaging 54.1 ppm, with no violations for lead or copper and stable neutral pH. Treatment includes disinfection, filtration, and corrosion control.
Geology & Source: Gulf Coast Aquifer System — Pleistocene Chicot and Evangeline aquifers; unconsolidated coastal plain sands, silts, and clays interbedded with calcium carbonate-rich limestone and shell materials dissolve into hard groundwater typical of southeast
Other Texas Water Reports
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Frequently Asked Questions
Is Spring's water safe to drink?
Do I need a water softener in Spring?
How does Spring compare to the USA average?
Data Sources & Methodology
Water quality data for Spring 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.