How hard is the water in Aurora, OH?

Tap water hardness
117mg/L
6.8gpg
Moderately hard

Reported by Aurora City - Cleveland PWS · October 2024

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

The water in Aurora carries roughly 117 mg/L of dissolved calcium and magnesium, or 6.8 grains per gallon. That is moderately hard water. The number comes from Aurora City - Cleveland PWS, dated October 2024.

Aurora on the hardness scale, with nearby cities
060120180240300360+OH typical 113Hudson: 104 mg/LHudson 104Cleveland: 111 mg/LCleveland 111Cuyahoga Falls: 116 mg/LCuyahoga Falls 116Akron: 116 mg/LAkron 116Portage Lakes: 116 mg/LPortage Lakes 116Reminderville: 117 mg/LReminderville 117Bainbridge: 117 mg/LBainbridge 117Kent: 188 mg/LKent 188Solon: 210 mg/LSolon 210Stow: 220 mg/LStow 220Aurora 117mg/L as calcium carbonate060120180240300360+OH 113Hudson: 104 mg/LHudson 104Reminderville: 117 mg/LRemindervi. 117Bainbridge: 117 mg/LBainbridge 117Kent: 188 mg/LKent 188Solon: 210 mg/LSolon 210Stow: 220 mg/LStow 220117 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 117 mg/L, Aurora is close to the typical Ohio figure of 113 mg/L. Of the 10 nearest cities we track, 5 have softer water and 3 have harder. The range nearby runs from 104 mg/L in Hudson to 220 in Stow.

What 117 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 Aurora

3 people × 75 gallons a day × 6.8 gpg = 1,539 grains a day. A 24,000-grain unit regenerates about every 15 days.

Size it for your household

EPA record for Aurora's water system

Aurora City - Cleveland PWS · PWSID OH6789112

No health-based violations since 2016

Serves about 15,852 people from surface water.

Health-based
0
Monitoring or reporting
4
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 Aurora water hard?

Somewhat. It measures about 117 mg/L (6.8 grains per gallon), which the USGS classes as moderately hard.

What is the water hardness in Aurora in grains per gallon?

About 6.8 gpg. One grain per gallon equals 17.1 mg/L, so 117 mg/L divided by 17.1 gives 6.8.

What size water softener do I need in Aurora?

For 3 people using 75 gallons each per day, 6.8 gpg works out to about 1,539 grains a day. A 24,000-grain softener covers that with a regeneration about every 15 days.

Has the Aurora water system had EPA violations?

EPA records show no health-based violations for Aurora City - Cleveland PWS since 2016. There were also 4 monitoring or reporting violations, which are about late or missing tests and notices.

Nearby cities

All 108 cities in Ohio

Hardness data: TapWaterData US Water Hardness (utility report, October 25, 2024), CC BY 4.0. Population: US Census Bureau. Violations: EPA ECHO. How we use them.