Hard water in Avon, OH
Reported by Avon City PWS · May 2024
- OH typical
- 113 mg/L
- EPA health violations since 2016
- 0
- Softener for 3 people
- 24k grain
- Data
- Utility report
Avon water measures 130 mg/L (7.6 gpg) of hardness, hard by USGS standards. The number comes from Avon City PWS, dated May 2024.
Avon sits 17 mg/L above the typical Ohio figure of 113. Of the 10 nearest cities we track, 5 have softer water and 5 have harder. The range nearby runs from 50 mg/L in Oberlin to 247 in Brunswick.
What 130 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 130 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 × 7.6 gpg = 1,710 grains a day. A 24,000-grain unit regenerates about every 14 days.
EPA record for Avon's water system
No health-based violations since 2016
Serves about 24,060 people from surface water.
- Health-based
- 0
- Monitoring or reporting
- 3
- 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 Avon water hard?
Yes. It measures about 130 mg/L (7.6 grains per gallon), which the USGS classes as hard.
What is the water hardness in Avon in grains per gallon?
About 7.6 gpg. One grain per gallon equals 17.1 mg/L, so 130 mg/L divided by 17.1 gives 7.6.
What size water softener do I need in Avon?
For 3 people using 75 gallons each per day, 7.6 gpg works out to about 1,710 grains a day. A 24,000-grain softener covers that with a regeneration about every 14 days.
Has the Avon water system had EPA violations?
EPA records show no health-based violations for Avon City PWS since 2016. There were also 3 monitoring or reporting violations, which are about late or missing tests and notices.
Nearby cities
- Avon Lake78 mg/LModerately hard
- North Ridgeville220 mg/LVery hard
- North Olmsted210 mg/LVery hard
- Elyria220 mg/LVery hard
- Fairview Park111 mg/LModerately hard
- Lorain220 mg/LVery hard
- Lakewood112 mg/LModerately hard
- Oberlin50 mg/LSoft
- Brunswick247 mg/LVery hard
- Cleveland111 mg/LModerately hard
Hardness data: TapWaterData US Water Hardness (utility report, May 2, 2024), CC BY 4.0. Population: US Census Bureau. Violations: EPA ECHO. How we use them.