How hard is the water in Bonita Springs, FL?

Tap water hardness
69mg/L
4.0gpg
Moderately hard

Reported by Bonita Springs Utilities · September 2025

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

Tap water in Bonita Springs has about 69 mg/L of hardness, which is 4.0 grains per gallon. On the USGS scale that counts as moderately hard. The number comes from Bonita Springs Utilities, dated September 2025.

Bonita Springs on the hardness scale, with nearby cities
060120180240300360+FL typical 120Tice: 43 mg/LTice 43Fort Myers: 47 mg/LFort Myers 47Pelican Bay: 60 mg/LPelican Bay 60Golden Gate: 60 mg/LGolden Gate 60Naples: 60 mg/LNaples 60Lely Resort: 60 mg/LLely Resort 60Naples Manor: 60 mg/LNaples Manor 60Estero: 262 mg/LEstero 262Lehigh Acres: 262 mg/LLehigh Acres 262Immokalee: 288 mg/LImmokalee 288Bonita Springs 69mg/L as calcium carbonate060120180240300360+FL 120Fort Myers: 47 mg/LFort Myers 47Pelican Bay: 60 mg/LPelican Bay 60Golden Gate: 60 mg/LGolden Gate 60Naples: 60 mg/LNaples 60Lely Resort: 60 mg/LLely Resort 60Estero: 262 mg/LEstero 26269 mg/Lmg/L as calcium carbonate
Soft 0–60 mg/LModerately hard 61–120 mg/LHard 121–180 mg/LVery hard 181+ mg/L

At 69 mg/L, Bonita Springs is 51 mg/L below the typical Florida figure of 120. Of the 10 nearest cities we track, 7 have softer water and 3 have harder. The range nearby runs from 43 mg/L in Tice to 288 in Immokalee.

What 69 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 Bonita Springs

3 people × 75 gallons a day × 4.0 gpg = 911 grains a day. A 24,000-grain unit regenerates about every 26 days.

Size it for your household

EPA record for Bonita Springs's water system

Bonita Springs Utilities · PWSID FL5360025

No health-based violations since 2016

Serves about 76,033 people from groundwater.

Health-based
0
Monitoring or reporting
2
Open now
1

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 Bonita Springs water hard?

Somewhat. It measures about 69 mg/L (4.0 grains per gallon), which the USGS classes as moderately hard.

What is the water hardness in Bonita Springs in grains per gallon?

About 4.0 gpg. One grain per gallon equals 17.1 mg/L, so 69 mg/L divided by 17.1 gives 4.0.

What size water softener do I need in Bonita Springs?

For 3 people using 75 gallons each per day, 4.0 gpg works out to about 911 grains a day. A 24,000-grain softener covers that with a regeneration about every 26 days.

Has the Bonita Springs water system had EPA violations?

EPA records show no health-based violations for Bonita Springs Utilities since 2016. There were also 2 monitoring or reporting violations, which are about late or missing tests and notices.

Nearby cities

All 214 cities in Florida

Hardness data: TapWaterData US Water Hardness (utility report, September 20, 2025), CC BY 4.0. Population: US Census Bureau. Violations: EPA ECHO. How we use them.