The Colony, TX water hardness

Tap water hardness
11mg/L
0.6gpg
Soft

Calculated from the utility's calcium and magnesium results · September 2025

TX typical
112 mg/L
EPA health violations since 2016
0
Data
Calculated from utility data

Tap water in The Colony has about 11 mg/L of hardness, which is 0.6 grains per gallon. On the USGS scale that counts as soft. TapWaterData worked it out from the calcium and magnesium levels the local utility reports (September 2025).

The Colony on the hardness scale, with nearby cities
060120180240300360+TX typical 112Highland Village: 26 mg/LHighland Village 26Paloma Creek South: 30 mg/LPaloma Creek South 30Little Elm: 77 mg/LLittle Elm 77Oak Point: 77 mg/LOak Point 77Lewisville: 90 mg/LLewisville 90Hickory Creek: 93 mg/LHickory Creek 93Lake Dallas: 95 mg/LLake Dallas 95Carrollton: 136 mg/LCarrollton 136Frisco: 149 mg/LFrisco 149Plano: 150 mg/LPlano 150The Colony 11mg/L as calcium carbonate060120180240300360+TX 112Little Elm: 77 mg/LLittle Elm 77Oak Point: 77 mg/LOak Point 77Lewisville: 90 mg/LLewisville 90Lake Dallas: 95 mg/LLake Dallas 95Carrollton: 136 mg/LCarrollton 136Frisco: 149 mg/LFrisco 14911 mg/Lmg/L as calcium carbonate
Soft 0–60 mg/LModerately hard 61–120 mg/LHard 121–180 mg/LVery hard 181+ mg/L

At 11 mg/L, The Colony is 101 mg/L below the typical Texas figure of 112. None of the 10 nearest cities we track has softer water. The range nearby runs from 26 mg/L in Highland Village to 150 in Plano.

What 11 mg/L means at home

Soap and shampoo lather with very little product. Kettles and showerheads stay mostly free of white crust.

Some people notice that soap feels slow to rinse off in soft water. That slippery feel is normal and harmless.

Hardness is not a health problem, and EPA sets no limit for it. It is a matter of scale and soap.

What to do about it

Nothing, as far as hardness goes. At 11 mg/L a softener would have almost nothing to remove.

Carbon filter

If the water tastes of chlorine, a pitcher or faucet carbon filter takes care of that. It does not change hardness.

EPA record for The Colony's water system

City of the Colony · PWSID TX0610081

No health-based violations since 2016

Serves about 45,367 people from surface water.

Health-based
0
Monitoring or reporting
2
Open now
0

EPA lists this system as serving The Colony.

Health-based means a contaminant above its legal limit or a missed treatment step. Monitoring and reporting violations are late or missing tests and notices. Source: EPA ECHO, 2026Q3 export, violations with periods starting 2016 or later. Full EPA record.

Questions

Is The Colony water hard?

No. It measures about 11 mg/L (0.6 grains per gallon), which the USGS classes as soft.

What is the water hardness in The Colony in grains per gallon?

About 0.6 gpg. One grain per gallon equals 17.1 mg/L, so 11 mg/L divided by 17.1 gives 0.6.

Has the The Colony water system had EPA violations?

EPA records show no health-based violations for City of the Colony since 2016. There were also 2 monitoring or reporting violations, which are about late or missing tests and notices.

Nearby cities

All 342 cities in Texas

Hardness data: TapWaterData US Water Hardness (calculated from utility data, September 24, 2025), CC BY 4.0. Population: US Census Bureau. Violations: EPA ECHO. How we use them.