How does Ennis's water compare to the national average?

The USA national average is 151 mg/L. Ennis (≈ 180+ mg/L) is 189 mg/L harder than average.

Ennis Water Hardness & Quality Report (2026)

Water Hardness

very hard

180+ mg/L

Very Hard

estimated · not lab-verified

Source

reservoir

pH Level

7.5

neutral = 7.0

Lead

0.006 mg/L

✓ Below action level

TDS

781.8 mg/L

Est. Daily Cost

$0.91

energy & soap waste

Source: See methodology section below · Updated 2026

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

Appliance	In Ennis	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 Ennis compares to its nearest neighbours

City	Hardness	PFAS (ppt)	Risk	Source
▶ Ennis, Texas	≈ 180+ mg/L	157.5 ppt	🔴 Very Hard	reservoir
Waxahachie, Texas	≈ 120–179 mg/L	112.3 ppt	🟠 Hard	reservoir
Red Oak, Texas	≈ 120–179 mg/L	112.9 ppt	🟠 Hard	reservoir
Corsicana, Texas	≈ 120–179 mg/L	52.6 ppt	🟠 Hard	reservoir
Lancaster, Texas	≈ 120–179 mg/L	118.9 ppt	🟠 Hard	reservoir

National Benchmark

How Ennis compares to the USA average

Benchmark	Hardness	Appliance Risk
▶ Ennis	≈ 180+ mg/L	🔴 High
USA National Avg	151 mg/L	🟠 Moderate
Scarsdale Top Rated	0.02 mg/L	🟢 None

Bring Scarsdale-quality water to your Ennis home

Shop water softeners on Amazon.com →

Shop Now

What Makes Ennis's Water Unique?

Local geology and source profile

Source: ReservoirTDS: 781.8 mg/LpH: 7.5

The City of Ennis Water Utility serves Ennis in Ellis County, Texas, with a population of around 25,000. Water is sourced exclusively from local groundwater wells tapping the Trinity Aquifer, with treatment occurring at the city's water treatment plant. No surface water sources supplement the supply. Emergency contacts are available 24/7 at 972-875-4462, and the utility distributes annual Consumer Confidence Reports to all residents. The supply has received a Superior rating from the Texas Commission on Environmental Quality (TCEQ), reflecting compliance with state standards.

Ennis groundwater originates in the Trinity River Basin, drawing from the Woodbine Aquifer and deeper Trinity Group sands of Cretaceous origin. These formations feature limestone and dolomite layers that naturally leach minerals as groundwater percolates through them, resulting in a hard supply. The confined aquifer's prolonged interaction with carbonate rocks and Lower Cretaceous marine deposits shapes the water chemistry, yielding a mineralised profile without the diluting effect of surface reservoirs.

Very hard water in Ennis causes significant scale buildup in pipes, water heaters, dishwashers, and washing machines, reducing efficiency and lifespan. Soap efficiency drops considerably, causing spots on dishes and dry skin or hair. Regular vinegar flushes for fixtures and installing scale inhibitors are recommended; a water softener is strongly advised for households. TCEQ rates the supply as Superior; TapWaterData indicates 3 contaminants above EPA health guidelines in past tests, with full compliance details available in the annual Consumer Confidence Report.

Geology & Source: Trinity Aquifer, North-Central Texas — Cretaceous Woodbine and Trinity Group sandstone and limestone layers; karst features dissolve calcium and magnesium from Lower Cretaceous marine deposits, producing hard groundwater

Other Texas Water Reports

Waxahachie

≈ 120–179 mg/L

🟠 Hard

Red Oak

≈ 120–179 mg/L

🟠 Hard

Corsicana

≈ 120–179 mg/L

🟠 Hard

Lancaster

≈ 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 Ennis's water safe to drink?

Yes. Ennis's water meets all federal safety standards. The hardness is ≈ 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 Ennis?

At ≈ 180+ mg/L (Very Hard), Ennis'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 Ennis compare to the USA average?

The USA national average is 151 mg/L. Ennis (≈ 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 Ennis 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.