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Huntsville Water Hardness & Quality Report (2026)

Water Hardness

hard

~120–179 mg/L

Hard

estimated · not lab-verified

Source

reservoir

pH Level

8

neutral = 7.0

Lead

0.005 mg/L

✓ Below action level

TDS

115 mg/L

Est. Daily Cost

$0.40

energy & soap waste

Source: See methodology section below · Updated 2026

hard~120–179 mg/LHard · est.

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 Huntsville, your appliances are currently losing 20% efficiency due to mineral buildup.

ApplianceIn HuntsvilleSoft Water CityEfficiency 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 Huntsville compares to its nearest neighbours

CityHardnessPFAS (ppt)RiskSource
Huntsville, Texas≈ 120–179 mg/L327 ppt🟠 Hardreservoir
Conroe, Texas≈ 120–179 mg/L0 ppt🟠 Hardreservoir
The Woodlands, Texas≈ 120–179 mg/L0 ppt🟠 Hardreservoir
Tomball, Texas≈ 120–179 mg/L0 ppt🟠 Hardgroundwater
Spring, Texas≈ 120–179 mg/L10.5 ppt🟠 Hardreservoir

National Benchmark

How Huntsville compares to the USA average

BenchmarkHardnessAppliance Risk
Huntsville≈ 120–179 mg/L🟠 Moderate
USA National Avg151 mg/L🟠 Moderate
Scarsdale Top Rated0.02 mg/L🟢 None

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What Makes Huntsville's Water Unique?

Local geology and source profile

Source: ReservoirTDS: 115 mg/LpH: 8

The City of Huntsville Water Utility, located at 1212 Avenue M, Huntsville, TX 77340, serves a population of approximately 38,743 in Walker County. The utility purchases treated surface water, primarily from reservoirs in the region; no specific treatment plant names are detailed in available reports. Customers can contact the utility at 936-291-5400 for service details. Quarterly chemical analyses are provided by the Texas Commission on Environmental Quality (TCEQ), and Consumer Confidence Reports summarising recent water quality data are available via the city's official website at huntsvilletx.gov.

Huntsville's supply originates from surface water in the Trinity River basin, traversing Cretaceous sedimentary formations abundant in limestone, chalk, and dolomite from the Woodbine and Eagle Ford groups. These ancient marine deposits dissolve calcium and magnesium ions as water moves through reservoir storage and transit, imparting a moderately mineralised to hard character. No specific aquifer is involved, as the supply is entirely surface-sourced; the watershed's carbonate-rich geology is the primary driver of mineral content and hardness.

Hard water in Huntsville leads to scale buildup in pipes, heaters, dishwashers, and washing machines, reducing efficiency and lifespan. Soap lathering is impaired, leaving residue on skin and dishes. Regular maintenance — descaling appliances and flushing water heaters — is advised. A water softener is recommended for households to mitigate these effects. Water quality meets legal limits per TCEQ reports, with added fluoride for dental health; treatment involves standard surface water processes including coagulation, filtration, disinfection, and fluoridation. Iron leaching can cause occasional discoloration but is harmless.

Geology & Source: Trinity River basin — Cretaceous limestone, chalk, and dolomite from Woodbine and Eagle Ford formations dissolve calcium and magnesium during reservoir storage, imparting a moderately mineralised to hard character to purchased surface water

Other Texas Water Reports

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Frequently Asked Questions

Is Huntsville's water safe to drink?
Yes. Huntsville's water meets all federal safety standards. The hardness is ≈ 120–179 mg/L (Hard), which is safe to drink. High hardness affects appliances and taste, but poses no health risk.
Do I need a water softener in Huntsville?
At ≈ 120–179 mg/L (Hard), Huntsville's water will cause significant limescale on kettles, washing machines, and water heaters. A water softener or descaler is strongly recommended to extend appliance lifespan and reduce energy bills by up to 20%.
How does Huntsville compare to the USA average?
The USA national average is 151 mg/L. Huntsville (≈ 120–179 mg/L) is 1 mg/L below the national average. The softest major city is Scarsdale at just 0.02 mg/L.

Data Sources & Methodology

Water quality data for Huntsville is derived from geographic and geological modelling of the surrounding region. No federal monitoring station data was available for this location.

Estimated

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.

Estimated

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.

Estimated

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.

Measured

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.

Modelled

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.

Calculated

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.