Hard water in Farmersville, TX
Reported by North Farmersville WSC · November 2025
- TX typical
- 112 mg/L
- EPA health violations since 2016
- 4
- Softener for 3 people
- 24k grain
- Data
- Utility report
Tap water in Farmersville has about 134 mg/L of hardness, which is 7.8 grains per gallon. On the USGS scale that counts as hard. The number comes from North Farmersville WSC, dated November 2025.
At 134 mg/L, Farmersville is 22 mg/L above the typical Texas figure of 112. None of the 10 nearest cities we track has harder water. The range nearby runs from 30 mg/L in Caddo Mills to 126 in Lavon.
What 134 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 134 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.
3 people × 75 gallons a day × 7.8 gpg = 1,764 grains a day. A 24,000-grain unit regenerates about every 13 days.
EPA record for Farmersville's water system
4 health-based violations since 2016
Serves about 747 people from surface water.
- Health-based
- 4
- Monitoring or reporting
- 18
- Open now
- 1
| Contaminant or rule | Violations | Period | Status |
|---|---|---|---|
| Lead and Copper Rulecorrosion control and lead sampling | 4 | 2019–2025 | 1 open |
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 Farmersville water hard?
Yes. It measures about 134 mg/L (7.8 grains per gallon), which the USGS classes as hard.
What is the water hardness in Farmersville in grains per gallon?
About 7.8 gpg. One grain per gallon equals 17.1 mg/L, so 134 mg/L divided by 17.1 gives 7.8.
What size water softener do I need in Farmersville?
For 3 people using 75 gallons each per day, 7.8 gpg works out to about 1,764 grains a day. A 24,000-grain softener covers that with a regeneration about every 13 days.
Has the Farmersville water system had EPA violations?
EPA records show 4 health-based violations for North Farmersville WSC since 2016, involving Lead and Copper Rule. There were also 18 monitoring or reporting violations, which are about late or missing tests and notices.
Nearby cities
- Princeton116 mg/LModerately hard
- Caddo Mills30 mg/LSoft
- Lavon126 mg/LHard
- Royse City116 mg/LModerately hard
- Wylie126 mg/LHard
- Lucas110 mg/LModerately hard
- Melissa111 mg/LModerately hard
- Fairview90 mg/LModerately hard
- Fate126 mg/LHard
- Greenville30 mg/LSoft
Hardness data: TapWaterData US Water Hardness (utility report, November 2, 2025), CC BY 4.0. Population: US Census Bureau. Violations: EPA ECHO. How we use them.