Hard water in Altamonte Springs, FL
Reported by Altamonte Springs Water Dept (2 WPS) · September 2025
- FL typical
- 120 mg/L
- EPA health violations since 2016
- 0
- Softener for 3 people
- 24k grain
- Data
- Utility report
Altamonte Springs water measures 120 mg/L (7.0 gpg) of hardness, hard by USGS standards. The number comes from Altamonte Springs Water Dept (2 WPS), dated September 2025.
Altamonte Springs sits close to the typical Florida figure of 120 mg/L. Of the 10 nearest cities we track, 4 have softer water and 5 have harder. The range nearby runs from 94 mg/L in Fern Park to 188 in Forest City.
What 120 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 120 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 × 7.0 gpg = 1,582 grains a day. A 24,000-grain unit regenerates about every 15 days.
EPA record for Altamonte Springs's water system
No health-based violations since 2016
Serves about 51,000 people from groundwater.
- Health-based
- 0
- Monitoring or reporting
- 2
- 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 Altamonte Springs water hard?
Yes. It measures about 120 mg/L (7.0 grains per gallon), which the USGS classes as hard.
What is the water hardness in Altamonte Springs in grains per gallon?
About 7.0 gpg. One grain per gallon equals 17.1 mg/L, so 120 mg/L divided by 17.1 gives 7.0.
What size water softener do I need in Altamonte Springs?
For 3 people using 75 gallons each per day, 7.0 gpg works out to about 1,582 grains a day. A 24,000-grain softener covers that with a regeneration about every 15 days.
Has the Altamonte Springs water system had EPA violations?
EPA records show no health-based violations for Altamonte Springs Water Dept (2 WPS) since 2016. There were also 2 monitoring or reporting violations, which are about late or missing tests and notices.
Nearby cities
- Maitland101 mg/LModerately hard
- Forest City188 mg/LVery hard
- Fern Park94 mg/LModerately hard
- Wekiwa Springs165 mg/LHard
- Lockhart99 mg/LModerately hard
- Longwood124 mg/LHard
- Fairview Shores129 mg/LHard
- Casselberry120 mg/LModerately hard
- Winter Park116 mg/LModerately hard
- South Apopka152 mg/LHard
Hardness data: TapWaterData US Water Hardness (utility report, September 17, 2025), CC BY 4.0. Population: US Census Bureau. Violations: EPA ECHO. How we use them.