How hard is the water in Irondequoit, NY?

Tap water hardness
112mg/L
6.5gpg
Moderately hard

Reported by McWa · August 2025

NY typical
31 mg/L
EPA health violations since 2016
1
Softener for 3 people
24k grain
Data
Utility report

The water in Irondequoit carries roughly 112 mg/L of dissolved calcium and magnesium, or 6.5 grains per gallon. That is moderately hard water. The number comes from McWa, dated August 2025.

Irondequoit on the hardness scale, with nearby cities
060120180240300360+NY typical 31Rochester: 105 mg/LRochester 105Oswego: 105 mg/LOswego 105Fulton: 105 mg/LFulton 105Harris Hill: 109 mg/LHarris Hill 109Greece: 112 mg/LGreece 112North Gates: 112 mg/LNorth Gates 112Hilton: 112 mg/LHilton 112Newark: 135 mg/LNewark 135Lockport: 167 mg/LLockport 167Auburn: 201 mg/LAuburn 201Irondequoit 112mg/L as calcium carbonate060120180240300360+NY 31Rochester: 105 mg/LRochester 105Greece: 112 mg/LGreece 112North Gates: 112 mg/LNorth Gates 112Hilton: 112 mg/LHilton 112Newark: 135 mg/LNewark 135Auburn: 201 mg/LAuburn 201112 mg/Lmg/L as calcium carbonate
Soft 0–60 mg/LModerately hard 61–120 mg/LHard 121–180 mg/LVery hard 181+ mg/L

Irondequoit sits 81 mg/L above the typical New York figure of 31. Of the 10 nearest cities we track, 4 have softer water and 3 have harder. The range nearby runs from 105 mg/L in Rochester to 201 in Auburn.

What 112 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 Irondequoit

3 people × 75 gallons a day × 6.5 gpg = 1,474 grains a day. A 24,000-grain unit regenerates about every 16 days.

Size it for your household

EPA record for Irondequoit's water system

McWa · PWSID NY2701047

1 health-based violation since 2016

Serves about 525,262 people from surface water.

Health-based
1
Monitoring or reporting
0
Open now
1

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

20162017201820192020202120222023202420252026Lead and Copper Rule'16'18'20'22'24'26Lead and Copper Rule
Each dot is one health-based violation, placed at the start of its compliance period.
Contaminant or ruleViolationsPeriodStatus
Lead and Copper Rulecorrosion control and lead sampling120251 open

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 Irondequoit water hard?

Somewhat. It measures about 112 mg/L (6.5 grains per gallon), which the USGS classes as moderately hard.

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

About 6.5 gpg. One grain per gallon equals 17.1 mg/L, so 112 mg/L divided by 17.1 gives 6.5.

What size water softener do I need in Irondequoit?

For 3 people using 75 gallons each per day, 6.5 gpg works out to about 1,474 grains a day. A 24,000-grain softener covers that with a regeneration about every 16 days.

Has the Irondequoit water system had EPA violations?

EPA records show 1 health-based violation for McWa since 2016, involving Lead and Copper Rule.

Nearby cities

All 149 cities in New York

Hardness data: TapWaterData US Water Hardness (utility report, August 5, 2025), CC BY 4.0. Population: US Census Bureau. Violations: EPA ECHO. How we use them.