Hard water in Firebaugh, CA
Reported by Firebaugh City · April 2023
- CA typical
- 121 mg/L
- EPA health violations since 2016
- 0
- Softener for 3 people
- 24k grain
- Data
- Utility report
Tap water in Firebaugh has about 121 mg/L of hardness, which is 7.1 grains per gallon. On the USGS scale that counts as hard. The number comes from Firebaugh City, dated April 2023. Reports for this system disagree, with values from 121 to 144 mg/L.
Firebaugh sits close to the typical California figure of 121 mg/L. Of the 10 nearest cities we track, 6 have softer water and 4 have harder. The range nearby runs from 10 mg/L in Mayfair to 167 in Sunnyside.
What 121 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 121 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 × 7.1 gpg = 1,593 grains a day. A 24,000-grain unit regenerates about every 15 days.
EPA record for Firebaugh's water system
No health-based violations since 2016
Serves about 8,424 people from groundwater.
- Health-based
- 0
- Monitoring or reporting
- 0
- 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 Firebaugh water hard?
Yes. It measures about 121 mg/L (7.1 grains per gallon), which the USGS classes as hard.
What is the water hardness in Firebaugh in grains per gallon?
About 7.1 gpg. One grain per gallon equals 17.1 mg/L, so 121 mg/L divided by 17.1 gives 7.1.
What size water softener do I need in Firebaugh?
For 3 people using 75 gallons each per day, 7.1 gpg works out to about 1,593 grains a day. A 24,000-grain softener covers that with a regeneration about every 15 days.
Has the Firebaugh water system had EPA violations?
EPA records show no health-based violations for Firebaugh City since 2016.
Nearby cities
- Mendota17 mg/LSoft
- Madera94 mg/LModerately hard
- Madera Acres62 mg/LModerately hard
- Los Banos138 mg/LHard
- Merced138 mg/LHard
- Atwater138 mg/LHard
- Mayfair10 mg/LSoft
- Clovis59 mg/LSoft
- Sunnyside167 mg/LHard
- Denair118 mg/LModerately hard
Hardness data: TapWaterData US Water Hardness (utility report, April 4, 2023), CC BY 4.0. Population: US Census Bureau. Violations: EPA ECHO. How we use them.