How does Fort Worth's water compare to the national average?

The USA national average is 151 mg/L. Fort Worth (79.9 mg/L) is 71 mg/L softer than average.

Fort Worth Water Hardness & Quality Report (2026)

Water Hardness

79.9mg/L

Moderately Hard

4.7 grains per gallon · avg across 12 areas

Source

reservoir

pH Level

7.8

neutral = 7.0

Lead

0.004 mg/L

✓ Below action level

TDS

3 mg/L

Est. Daily Cost

$0.21

energy & soap waste

Source: See methodology section below · Updated 2026

79.9mg/L as CaCO₃Moderately Hard

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 Fort Worth, your appliances are currently losing 11% efficiency due to mineral buildup.

Appliance	In Fort Worth	Soft Water City	Efficiency Loss
Kettle	7 yrs	8.5 yrs	-18%
Washing Machine	10.6 yrs	12 yrs	-12%
Water Heater	12.4 yrs	15 yrs	-17%

Regional Water Comparison

How Fort Worth compares to its nearest neighbours

City	Hardness	PFAS (ppt)	Risk	Source
▶ Fort Worth, Texas	79.9 mg/L	12 ppt	🟡 Moderately Hard	reservoir
Forest Hill, Texas	≈ 180+ mg/L	41.1 ppt	🔴 Very Hard	reservoir
Haltom City, Texas	≈ 120–179 mg/L	278.7 ppt	🟠 Hard	reservoir
Saginaw, Texas	≈ 120–179 mg/L	42.6 ppt	🟠 Hard	reservoir
White Settlement, Texas	≈ 120–179 mg/L	150.5 ppt	🟠 Hard	reservoir

National Benchmark

How Fort Worth compares to the USA average

Benchmark	Hardness	Appliance Risk
▶ Fort Worth	79.9 mg/L	🟡 Low
USA National Avg	151 mg/L	🟠 Moderate
Scarsdale Top Rated	0.02 mg/L	🟢 None

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What Makes Fort Worth's Water Unique?

Local geology and source profile

Source: ReservoirTDS: 3 mg/LpH: 7.8

The City of Fort Worth Water Department serves over 900,000 residents across Tarrant County and surrounding areas of the Dallas-Fort Worth metroplex. Primary sources include Lake Worth, the Clear Fork of the Trinity River, and Eagle Mountain Lake, treated at five major facilities including the Lake Worth Water Treatment Plant and Tarrant County Water Control Plant No. 1, managed in partnership with the Tarrant Regional Water District. Source waters are rated high-risk for contamination per TCEQ assessments due to urban development and construction near the reservoirs.

The watershed encompasses the Trinity River Basin, traversing Cretaceous sedimentary formations typical of North Texas. Geology features limestone-dominated layers from the Cretaceous Trinity Aquifer group, including the Paluxy and Glen Rose formations, which impart a hard character through natural mineral dissolution. Sedimentary rock leaching from Paleozoic to Cretaceous strata elevates calcium and magnesium, shaping a mineral-rich profile influenced by the karst topography of the Edwards Plateau extending into the metro area.

Fort Worth's hard water promotes limescale buildup in pipes, water heaters, dishwashers, and washing machines, reducing efficiency and potentially causing premature heater failure. Regular system flushing and appliance deliming are recommended; a water softener is strongly advised for households to prevent scaling, extend equipment life, and reduce soap use. Water is disinfected with chloramine, which may contribute to taste complaints; pH is typically neutral. The system meets lead and copper action levels (90th percentile lead <7.7 ppb). PFAS testing in 2023 covered 29 compounds with mostly non-detect results; notable contaminants include low arsenic (up to 1.5 ppb) and chromium-6 (avg. 54 ppt).

Geology & Source: Trinity River watershed — Cretaceous Woodbine and Trinity Group formations (Paluxy, Glen Rose layers); limestone and dolomite karst leaches calcium and magnesium; Edwards Plateau influence produces hard surface water supply

Hardness Varies Across Fort Worth — Find Your Area

City average is 79.9 mg/L. Individual ZIP areas differ.

* ZIP code estimates are derived from the city-wide measurement. Actual readings may vary slightly by neighbourhood.

ZIP Code	Neighbourhood	Hardness (mg/L)	Risk Level
76104	South Fort Worth	178	🟠 Hard
76106	North Fort Worth	180	🔴 Very Hard
76116	Westworth	180	🔴 Very Hard
76102	Central Fort Worth	181	🔴 Very Hard
76107	Westover Hills area	182	🔴 Very Hard
76101	Downtown	183	🔴 Very Hard
76103	East Fort Worth	184	🔴 Very Hard
76111	Riverside	185	🔴 Very Hard
76105	Stop Six	188	🔴 Very Hard
76110	Bluebonnet Hills	188	🔴 Very Hard
76112	East Fort Worth	188	🔴 Very Hard
76133	Southwest Fort Worth	188	🔴 Very Hard

Other Texas Water Reports

Forest Hill

≈ 180+ mg/L

🔴 Very Hard

Haltom City

≈ 120–179 mg/L

🟠 Hard

Saginaw

≈ 120–179 mg/L

🟠 Hard

White Settlement

≈ 120–179 mg/L

🟠 Hard

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 Fort Worth's water safe to drink?

Yes. Fort Worth's water meets all federal safety standards. The hardness is 79.9 mg/L (Moderately Hard), which is safe to drink. High hardness affects appliances and taste, but poses no health risk.

Do I need a water softener in Fort Worth?

Fort Worth's water is moderately hard at 79.9 mg/L. A water softener is generally not necessary, though a carbon filter can improve taste and remove any remaining chlorine.

How does Fort Worth compare to the USA average?

The USA national average is 151 mg/L. Fort Worth (79.9 mg/L) is 71 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 Fort Worth 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

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.