How hard is the water in New Haven, IN?

Tap water hardness
95mg/L
5.6gpg
Moderately hard

Reported by Fort Wayne - 3 Rivers Filtration Plant · March 2025

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

The water in New Haven carries roughly 95 mg/L of dissolved calcium and magnesium, or 5.6 grains per gallon. That is moderately hard water. The number comes from Fort Wayne - 3 Rivers Filtration Plant, dated March 2025.

New Haven on the hardness scale, with nearby cities
060120180240300360+IN typical 178Huntertown: 45 mg/LHuntertown 45Fort Wayne: 95 mg/LFort Wayne 95Auburn: 192 mg/LAuburn 192Notre Dame: 220 mg/LNotre Dame 220South Bend: 220 mg/LSouth Bend 220Kokomo: 283 mg/LKokomo 283Elkhart: 312 mg/LElkhart 312Goshen: 314 mg/LGoshen 314Marion: 321 mg/LMarion 321Anderson: 354 mg/LAnderson 354New Haven 95mg/L as calcium carbonate060120180240300360+IN 178Huntertown: 45 mg/LHuntertown 45Fort Wayne: 95 mg/LFort Wayne 95Auburn: 192 mg/LAuburn 192Elkhart: 312 mg/LElkhart 312Goshen: 314 mg/LGoshen 314Marion: 321 mg/LMarion 32195 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 95 mg/L, New Haven is 83 mg/L below the typical Indiana figure of 178. Of the 10 nearest cities we track, 1 has softer water and 8 have harder. The range nearby runs from 45 mg/L in Huntertown to 354 in Anderson.

What 95 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 New Haven

3 people × 75 gallons a day × 5.6 gpg = 1,251 grains a day. A 24,000-grain unit regenerates about every 19 days.

Size it for your household

EPA record for New Haven's water system

New Haven Water Department · PWSID IN5202009

No health-based violations since 2016

Serves about 15,700 people from surface water.

Health-based
0
Monitoring or reporting
11
Open now
0

EPA lists New Haven Water Department as the system serving New Haven. The hardness figure above comes from a different system's report, which TapWaterData uses for New Haven.

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 New Haven water hard?

Somewhat. It measures about 95 mg/L (5.6 grains per gallon), which the USGS classes as moderately hard.

What is the water hardness in New Haven in grains per gallon?

About 5.6 gpg. One grain per gallon equals 17.1 mg/L, so 95 mg/L divided by 17.1 gives 5.6.

What size water softener do I need in New Haven?

For 3 people using 75 gallons each per day, 5.6 gpg works out to about 1,251 grains a day. A 24,000-grain softener covers that with a regeneration about every 19 days.

Has the New Haven water system had EPA violations?

EPA records show no health-based violations for New Haven Water Department since 2016. There were also 11 monitoring or reporting violations, which are about late or missing tests and notices.

Nearby cities

All 53 cities in Indiana

Hardness data: TapWaterData US Water Hardness (utility report, March 6, 2025), CC BY 4.0. Population: US Census Bureau. Violations: EPA ECHO. How we use them.