How hard is the water in Rio Pinar, FL?

Tap water hardness
111mg/L
6.5gpg
Moderately hard

Reported by OCUD/Eastern Water System (2 WP) · September 2025

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

The water in Rio Pinar carries roughly 111 mg/L of dissolved calcium and magnesium, or 6.5 grains per gallon. That is moderately hard water. The number comes from OCUD/Eastern Water System (2 WP), dated September 2025.

Rio Pinar on the hardness scale, with nearby cities
060120180240300360+FL typical 120Union Park: 111 mg/LUnion Park 111Alafaya: 111 mg/LAlafaya 111Belle Isle: 111 mg/LBelle Isle 111Winter Park: 116 mg/LWinter Park 116Azalea Park: 120 mg/LAzalea Park 120Conway: 120 mg/LConway 120Orlando: 120 mg/LOrlando 120Goldenrod: 120 mg/LGoldenrod 120Pine Castle: 120 mg/LPine Castle 120Fairview Shores: 129 mg/LFairview Shores 129Rio Pinar 111mg/L as calcium carbonate060120180240300360+FL 120Union Park: 111 mg/LUnion Park 111Alafaya: 111 mg/LAlafaya 111Belle Isle: 111 mg/LBelle Isle 111Azalea Park: 120 mg/LAzalea Park 120Conway: 120 mg/LConway 120Orlando: 120 mg/LOrlando 120111 mg/Lmg/L as calcium carbonate
Soft 0–60 mg/LModerately hard 61–120 mg/LHard 121–180 mg/LVery hard 181+ mg/L

Rio Pinar sits close to the typical Florida figure of 120 mg/L. None of the 10 nearest cities we track has softer water. The range nearby runs from 111 mg/L in Union Park to 129 in Fairview Shores.

What 111 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 Rio Pinar

3 people × 75 gallons a day × 6.5 gpg = 1,465 grains a day. A 24,000-grain unit regenerates about every 16 days.

Size it for your household

EPA record for Rio Pinar's water system

OCUD/Eastern Water System (2 WP) · PWSID FL3484132

No health-based violations since 2016

Serves about 293,374 people from groundwater.

Health-based
0
Monitoring or reporting
2
Open now
0

TapWaterData ties Rio Pinar to this system. EPA's service-area records do not name Rio Pinar, so check the utility printed on your water bill.

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 Rio Pinar water hard?

Somewhat. It measures about 111 mg/L (6.5 grains per gallon), which the USGS classes as moderately hard.

What is the water hardness in Rio Pinar in grains per gallon?

About 6.5 gpg. One grain per gallon equals 17.1 mg/L, so 111 mg/L divided by 17.1 gives 6.5.

What size water softener do I need in Rio Pinar?

For 3 people using 75 gallons each per day, 6.5 gpg works out to about 1,465 grains a day. A 24,000-grain softener covers that with a regeneration about every 16 days.

Has the Rio Pinar water system had EPA violations?

EPA records show no health-based violations for OCUD/Eastern Water System (2 WP) 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 23, 2025), CC BY 4.0. Population: US Census Bureau. Violations: EPA ECHO. How we use them.