How hard is the water in Bee Cave, TX?

Tap water hardness
110mg/L
6.4gpg
Moderately hard

Reported by Travis County Wcid 17 · October 2025

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

Tap water in Bee Cave has about 110 mg/L of hardness, which is 6.4 grains per gallon. On the USGS scale that counts as moderately hard. The number comes from Travis County Wcid 17, dated October 2025.

Bee Cave on the hardness scale, with nearby cities
060120180240300360+TX typical 112Shady Hollow: 63 mg/LShady Hollow 63Wells Branch: 63 mg/LWells Branch 63Austin: 68 mg/LAustin 68Steiner Ranch: 94 mg/LSteiner Ranch 94Lakeway: 106 mg/LLakeway 106Buda: 136 mg/LBuda 136Belterra: 143 mg/LBelterra 143Dripping Springs: 148 mg/LDripping Springs 148Cedar Park: 157 mg/LCedar Park 157Leander: 162 mg/LLeander 162Bee Cave 110mg/L as calcium carbonate060120180240300360+TX 112Shady Hollow: 63 mg/LShady Holl. 63Austin: 68 mg/LAustin 68Steiner Ranch: 94 mg/LSteiner Ra. 94Lakeway: 106 mg/LLakeway 106Belterra: 143 mg/LBelterra 143Dripping Springs: 148 mg/LDripping S. 148110 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 110 mg/L, Bee Cave is close to the typical Texas figure of 112 mg/L. Of the 10 nearest cities we track, 5 have softer water and 5 have harder. The range nearby runs from 63 mg/L in Shady Hollow to 162 in Leander.

What 110 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 Bee Cave

3 people × 75 gallons a day × 6.4 gpg = 1,447 grains a day. A 24,000-grain unit regenerates about every 16 days.

Size it for your household

EPA record for Bee Cave's water system

Travis County Wcid 17 · PWSID TX2270027

No health-based violations since 2016

Serves about 45,165 people from surface water.

Health-based
0
Monitoring or reporting
1
Open now
0

TapWaterData ties Bee Cave to this system. EPA's service-area records do not name Bee Cave, so check the utility printed on your water bill.

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 Bee Cave water hard?

Somewhat. It measures about 110 mg/L (6.4 grains per gallon), which the USGS classes as moderately hard.

What is the water hardness in Bee Cave in grains per gallon?

About 6.4 gpg. One grain per gallon equals 17.1 mg/L, so 110 mg/L divided by 17.1 gives 6.4.

What size water softener do I need in Bee Cave?

For 3 people using 75 gallons each per day, 6.4 gpg works out to about 1,447 grains a day. A 24,000-grain softener covers that with a regeneration about every 16 days.

Has the Bee Cave water system had EPA violations?

EPA records show no health-based violations for Travis County Wcid 17 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 17, 2025), CC BY 4.0. Population: US Census Bureau. Violations: EPA ECHO. How we use them.