How hard is the water in Anna, TX?

Tap water hardness
62mg/L
3.6gpg
Moderately hardReports range 45–76

Reported by City of Anna · October 2025

TX typical
112 mg/L
EPA health violations since 2016
2
Softener for 3 people
24k grain
Data
Utility report

Tap water in Anna has about 62 mg/L of hardness, which is 3.6 grains per gallon. On the USGS scale that counts as moderately hard. The number comes from City of Anna, dated October 2025. Reports for this system disagree, with values from 45 to 76 mg/L.

Anna on the hardness scale, with nearby cities
060120180240300360+TX typical 112Van Alstyne: 18 mg/LVan Alstyne 18Celina: 40 mg/LCelina 40Sherman: 68 mg/LSherman 68Fairview: 90 mg/LFairview 90Allen: 109 mg/LAllen 109Lucas: 110 mg/LLucas 110Melissa: 111 mg/LMelissa 111Princeton: 116 mg/LPrinceton 116McKinney: 132 mg/LMcKinney 132Farmersville: 134 mg/LFarmersville 134Anna 62mg/L as calcium carbonate060120180240300360+TX 112Van Alstyne: 18 mg/LVan Alstyne 18Celina: 40 mg/LCelina 40Fairview: 90 mg/LFairview 90Melissa: 111 mg/LMelissa 111Princeton: 116 mg/LPrinceton 116McKinney: 132 mg/LMcKinney 13262 mg/Lmg/L as calcium carbonate
Soft 0–60 mg/LModerately hard 61–120 mg/LHard 121–180 mg/LVery hard 181+ mg/L

Anna sits 50 mg/L below the typical Texas figure of 112. Of the 10 nearest cities we track, 2 have softer water and 8 have harder. The range nearby runs from 18 mg/L in Van Alstyne to 134 in Farmersville.

What 62 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 Anna

3 people × 75 gallons a day × 3.6 gpg = 819 grains a day. A 24,000-grain unit regenerates about every 29 days.

Size it for your household

EPA record for Anna's water system

City of Anna · PWSID TX0430027

2 health-based violations since 2016

Serves about 23,960 people from surface water.

Health-based
2
Monitoring or reporting
16
Open now
0
20162017201820192020202120222023202420252026Lead and Copper RuleTotal trihalomethanes (TTHM)'16'18'20'22'24'26Lead and Copper RuleTotal trihalomethanes (TTHM)
Each dot is one health-based violation, placed at the start of its compliance period.
Contaminant or ruleViolationsPeriodStatus
Lead and Copper Rulecorrosion control and lead sampling12024Resolved
Total trihalomethanes (TTHM)a disinfection byproduct12019Resolved

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 Anna water hard?

Somewhat. It measures about 62 mg/L (3.6 grains per gallon), which the USGS classes as moderately hard.

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

About 3.6 gpg. One grain per gallon equals 17.1 mg/L, so 62 mg/L divided by 17.1 gives 3.6.

What size water softener do I need in Anna?

For 3 people using 75 gallons each per day, 3.6 gpg works out to about 819 grains a day. A 24,000-grain softener covers that with a regeneration about every 29 days.

Has the Anna water system had EPA violations?

EPA records show 2 health-based violations for City of Anna since 2016, involving Lead and Copper Rule, Total trihalomethanes (TTHM). There were also 16 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, October 7, 2025), CC BY 4.0. Population: US Census Bureau. Violations: EPA ECHO. How we use them.