LocalDataPoint

Webster Water Hardness & Quality Report (2026)

Water Hardness

very hard

180+ mg/L

Very Hard

estimated Β· not lab-verified

Source

reservoir

pH Level

8.3

neutral = 7.0

Lead

0.004 mg/L

βœ“ Below action level

TDS

539.4 mg/L

Est. Daily Cost

$0.91

energy & soap waste

Source: See methodology section below Β· Updated 2026

very hard180+ mg/LVery Hard Β· 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 Webster, your appliances are currently losing 45% efficiency due to mineral buildup.

ApplianceIn WebsterSoft Water CityEfficiency 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 Webster compares to its nearest neighbours

CityHardnessPFAS (ppt)RiskSource
β–Ά Webster, Texasβ‰ˆ 180+ mg/L127.3 pptπŸ”΄ Very Hardreservoir
League City, Texasβ‰ˆ 180+ mg/L316.8 pptπŸ”΄ Very Hardreservoir
Friendswood, Texasβ‰ˆ 180+ mg/L59.7 pptπŸ”΄ Very Hardreservoir
Seabrook, Texasβ‰ˆ 120–179 mg/L60.1 ppt🟠 Hardreservoir
Dickinson, Texasβ‰ˆ 180+ mg/L270.5 pptπŸ”΄ Very Hardreservoir

National Benchmark

How Webster compares to the USA average

BenchmarkHardnessAppliance Risk
β–Ά Websterβ‰ˆ 180+ mg/LπŸ”΄ High
USA National Avg151 mg/L🟠 Moderate
Scarsdale Top Rated0.02 mg/L🟒 None

Bring Scarsdale-quality water to your Webster home

Shop water softeners on Amazon.com β†’

Shop Now

What Makes Webster's Water Unique?

Local geology and source profile

Source: ReservoirTDS: 539.4 mg/LpH: 8.3

The City of Webster, serving around 14,114 residents in Harris County, Texas, relies entirely on purchased surface water from the City of Houston. This supply originates from Houston's extensive reservoir and river systems within the Gulf Coastal Plain. Webster does not operate its own water treatment facilities; instead, it receives fully treated water through an agreement with Houston. The local utility's main office is located at 855 Magnolia Avenue, Webster, TX 77598, and urgent assistance is available 24/7 at 281-557-6476.

Webster's water originates from the Gulf Coastal Plain watershed, an area characterized by Quaternary alluvial and coastal deposits layered over Tertiary sedimentary formations. The surface water sources tapped by Houston, including rivers and reservoirs, traverse these geologically rich strata. These formations are abundant in calcium and magnesium carbonates, minerals that significantly contribute to the very hard water quality typical across the greater Houston region. This geological makeup is a defining feature of the Texas Gulf Coast.

Experiencing very hard water means Webster residents may notice substantial scale buildup in appliances like kettles and water heaters. You'll likely find that soaps and detergents don't lather as effectively. To combat this, regularly descaling appliances with vinegar can help. Lowering your water heater's temperature can also reduce the rate of calcium scale formation. For a more comprehensive solution, consider installing a whole-home ion exchange water softener or a reverse osmosis system. Routine maintenance of plumbing and appliances is key to managing mineral deposits.

Geology & Source: Gulf Coastal Plain Quaternary alluvial and coastal deposits overlying Tertiary sediments; calcium and magnesium in these formations cause very 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!

Contact Us

Frequently Asked Questions

Is Webster's water safe to drink?
Yes. Webster's water meets all federal safety standards. The hardness is β‰ˆ 180+ mg/L (Very Hard), which is safe to drink. High hardness affects appliances and taste, but poses no health risk.
Do I need a water softener in Webster?
At β‰ˆ 180+ mg/L (Very Hard), Webster'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 45%.
How does Webster compare to the USA average?
The USA national average is 151 mg/L. Webster (β‰ˆ 180+ mg/L) is 189 mg/L above the national average. The softest major city is Scarsdale at just 0.02 mg/L.

Data Sources & Methodology

Water quality data for Webster 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 β€” 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 β€” values may differ from utility-reported figures.

Estimated

TDS β€” 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 β€” Perfluoroalkyl and Polyfluoroalkyl Substances

EPA UCMR5 (5th Unregulated Contaminant Monitoring Rule, 2023–2025) β€” 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 β€” 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.