How hard is the water in University Park, TX?

Tap water hardness
88mg/L
5.2gpg
Moderately hard

Reported by City of University Park · October 2025

TX typical
112 mg/L
EPA health violations since 2016
0
Softener for 3 people
24k grain
Data
Utility report

The water in University Park carries roughly 88 mg/L of dissolved calcium and magnesium, or 5.2 grains per gallon. That is moderately hard water. The number comes from City of University Park, dated October 2025.

University Park on the hardness scale, with nearby cities
060120180240300360+TX typical 112Irving: 81 mg/LIrving 81Dallas: 112 mg/LDallas 112Carrollton: 136 mg/LCarrollton 136Sunnyvale: 140 mg/LSunnyvale 140Mesquite: 142 mg/LMesquite 142Coppell: 143 mg/LCoppell 143Garland: 146 mg/LGarland 146Richardson: 150 mg/LRichardson 150Balch Springs: 164 mg/LBalch Springs 164Farmers Branch: 168 mg/LFarmers Branch 168University Park 88mg/L as calcium carbonate060120180240300360+TX 112Irving: 81 mg/LIrving 81Dallas: 112 mg/LDallas 112Carrollton: 136 mg/LCarrollton 136Garland: 146 mg/LGarland 146Richardson: 150 mg/LRichardson 150Farmers Branch: 168 mg/LFarmers Br. 16888 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 88 mg/L, University Park is 24 mg/L below the typical Texas figure of 112. Of the 10 nearest cities we track, 1 has softer water and 9 have harder. The range nearby runs from 81 mg/L in Irving to 168 in Farmers Branch.

What 88 mg/L means at home

You may see faint white spots on glasses and shower doors after the water dries.

Scale builds up slowly. A kettle or coffee maker needs descaling now and then, maybe every few months.

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

Optional. Plenty of households at this level live with it and descale the kettle now and then.

Water softener

Worth a look if spots on glass bother you, or if your tankless water heater manual asks for softer water.

Carbon filter

Improves taste and removes chlorine. It leaves calcium and magnesium in place.

Softener size for University Park

3 people × 75 gallons a day × 5.2 gpg = 1,161 grains a day. A 24,000-grain unit regenerates about every 20 days.

Size it for your household

EPA record for University Park's water system

City of University Park · PWSID TX0570061

No health-based violations since 2016

Serves about 25,617 people from surface water.

Health-based
0
Monitoring or reporting
1
Open now
0

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 University Park water hard?

Somewhat. It measures about 88 mg/L (5.2 grains per gallon), which the USGS classes as moderately hard.

What is the water hardness in University Park in grains per gallon?

About 5.2 gpg. One grain per gallon equals 17.1 mg/L, so 88 mg/L divided by 17.1 gives 5.2.

What size water softener do I need in University Park?

For 3 people using 75 gallons each per day, 5.2 gpg works out to about 1,161 grains a day. A 24,000-grain softener covers that with a regeneration about every 20 days.

Has the University Park water system had EPA violations?

EPA records show no health-based violations for City of University Park since 2016. There were also 1 monitoring or reporting violation, which are about late or missing tests and notices.

Nearby cities

All 342 cities in Texas

Hardness data: TapWaterData US Water Hardness (utility report, October 20, 2025), CC BY 4.0. Population: US Census Bureau. Violations: EPA ECHO. How we use them.