Hard water in Leander, TX

Tap water hardness
162mg/L
9.5gpg
Hard

Reported by City of Leander · July 2025

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

The water in Leander carries roughly 162 mg/L of dissolved calcium and magnesium, or 9.5 grains per gallon. That is hard water. The number comes from City of Leander, dated July 2025.

Leander on the hardness scale, with nearby cities
060120180240300360+TX typical 112Wells Branch: 63 mg/LWells Branch 63Brushy Creek: 74 mg/LBrushy Creek 74Steiner Ranch: 94 mg/LSteiner Ranch 94Lakeway: 106 mg/LLakeway 106Hutto: 141 mg/LHutto 141Georgetown: 148 mg/LGeorgetown 148Liberty Hill: 150 mg/LLiberty Hill 150Cedar Park: 157 mg/LCedar Park 157Round Rock: 169 mg/LRound Rock 169Pflugerville: 178 mg/LPflugerville 178Leander 162mg/L as calcium carbonate060120180240300360+TX 112Wells Branch: 63 mg/LWells Bran. 63Brushy Creek: 74 mg/LBrushy Cre. 74Georgetown: 148 mg/LGeorgetown 148Liberty Hill: 150 mg/LLiberty Hi. 150Cedar Park: 157 mg/LCedar Park 157Round Rock: 169 mg/LRound Rock 169162 mg/Lmg/L as calcium carbonate
Soft 0–60 mg/LModerately hard 61–120 mg/LHard 121–180 mg/LVery hard 181+ mg/L

Leander sits 50 mg/L above the typical Texas figure of 112. Of the 10 nearest cities we track, 8 have softer water and 2 have harder. The range nearby runs from 63 mg/L in Wells Branch to 178 in Pflugerville.

What 162 mg/L means at home

Expect white crust on faucets and showerheads, plus spots on dishes that come out of the dishwasher.

Kettles collect scale quickly. Water heaters build up sediment at the bottom of the tank, which makes them work harder over time.

Soap and detergent need a little more to lather, and soap scum shows up in the tub.

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

At 162 mg/L most of the trouble is scale, and only a few things deal with it.

Ion-exchange water softener

The standard whole-house fix. It swaps calcium and magnesium for sodium or potassium and needs salt plus a drain. Size it with the calculator below.

Salt-free conditioner

No salt and no drain line. It changes how minerals form scale instead of removing them, so water still tests hard.

Reverse osmosis or carbon filter

Under-sink reverse osmosis removes minerals from drinking water only. Plain carbon filters improve taste but do not soften.

Softener size for Leander

3 people × 75 gallons a day × 9.5 gpg = 2,131 grains a day. A 24,000-grain unit regenerates about every 11 days.

Size it for your household

EPA record for Leander's water system

City of Leander · PWSID TX2460012

No health-based violations since 2016

Serves about 98,330 people from surface water.

Health-based
0
Monitoring or reporting
10
Open now
4

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 Leander water hard?

Yes. It measures about 162 mg/L (9.5 grains per gallon), which the USGS classes as hard.

What is the water hardness in Leander in grains per gallon?

About 9.5 gpg. One grain per gallon equals 17.1 mg/L, so 162 mg/L divided by 17.1 gives 9.5.

What size water softener do I need in Leander?

For 3 people using 75 gallons each per day, 9.5 gpg works out to about 2,131 grains a day. A 24,000-grain softener covers that with a regeneration about every 11 days.

Has the Leander water system had EPA violations?

EPA records show no health-based violations for City of Leander since 2016. There were also 10 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 (utility report, July 22, 2025), CC BY 4.0. Population: US Census Bureau. Violations: EPA ECHO. How we use them.