Cooper City, FL water hardness
Reported by Cooper City · September 2025
- FL typical
- 120 mg/L
- EPA health violations since 2016
- 0
- Data
- Utility report
The water in Cooper City carries roughly 14 mg/L of dissolved calcium and magnesium, or 0.8 grains per gallon. That is soft water. The number comes from Cooper City, dated September 2025.
At 14 mg/L, Cooper City is 106 mg/L below the typical Florida figure of 120. Of the 10 nearest cities we track, 2 have softer water and 7 have harder. The range nearby runs from 13 mg/L in Plantation to 212 in Miami Gardens.
What 14 mg/L means at home
Soap and shampoo lather with very little product. Kettles and showerheads stay mostly free of white crust.
Some people notice that soap feels slow to rinse off in soft water. That slippery feel is normal and harmless.
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
Nothing, as far as hardness goes. At 14 mg/L a softener would have almost nothing to remove.
Carbon filter
If the water tastes of chlorine, a pitcher or faucet carbon filter takes care of that. It does not change hardness.
EPA record for Cooper City's water system
No health-based violations since 2016
Serves about 33,752 people from groundwater.
- Health-based
- 0
- Monitoring or reporting
- 15
- 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 Cooper City water hard?
No. It measures about 14 mg/L (0.8 grains per gallon), which the USGS classes as soft.
What is the water hardness in Cooper City in grains per gallon?
About 0.8 gpg. One grain per gallon equals 17.1 mg/L, so 14 mg/L divided by 17.1 gives 0.8.
Has the Cooper City water system had EPA violations?
EPA records show no health-based violations for Cooper City since 2016. There were also 15 monitoring or reporting violations, which are about late or missing tests and notices.
Nearby cities
- Davie14 mg/LSoft
- Pembroke Pines50 mg/LSoft
- Plantation13 mg/LSoft
- Broadview Park13 mg/LSoft
- Miramar20 mg/LSoft
- Miami Gardens212 mg/LVery hard
- Dania Beach51 mg/LSoft
- Hollywood51 mg/LSoft
- Country Club28 mg/LSoft
- Weston16 mg/LSoft
Hardness data: TapWaterData US Water Hardness (utility report, September 29, 2025), CC BY 4.0. Population: US Census Bureau. Violations: EPA ECHO. How we use them.