Elmont, NY water hardness

Tap water hardness
55mg/L
3.2gpg
Soft

Reported by WA of Western Nassau · October 2025

NY typical
31 mg/L
EPA health violations since 2016
0
Data
Utility report

Tap water in Elmont has about 55 mg/L of hardness, which is 3.2 grains per gallon. On the USGS scale that counts as soft. The number comes from WA of Western Nassau, dated October 2025.

Elmont on the hardness scale, with nearby cities
060120180240300360+NY typical 31Lynbrook: 32 mg/LLynbrook 32Lakeview: 39 mg/LLakeview 39Franklin Square: 48 mg/LFranklin Square 48West Hempstead: 48 mg/LWest Hempstead 48Malverne: 51 mg/LMalverne 51Garden City: 51 mg/LGarden City 51New Hyde Park: 53 mg/LNew Hyde Park 53North Valley Stream: 55 mg/LNorth Valley Stream 55Floral Park: 55 mg/LFloral Park 55North New Hyde Park: 55 mg/LNorth New Hyde Park 55Elmont 55mg/L as calcium carbonate060120180240300360+NY 31Franklin Square: 48 mg/LFranklin S. 48West Hempstead: 48 mg/LWest Hemps. 48Malverne: 51 mg/LMalverne 51New Hyde Park: 53 mg/LNew Hyde P. 53North Valley Stream: 55 mg/LNorth Vall. 55Floral Park: 55 mg/LFloral Park 5555 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 55 mg/L, Elmont is 24 mg/L above the typical New York figure of 31. None of the 10 nearest cities we track has harder water. The range nearby runs from 32 mg/L in Lynbrook to 55 in North Valley Stream.

What 55 mg/L means at home

Soap and shampoo lather with very little product. Kettles and showerheads stay mostly free of white crust.

Some people notice that soap feels slow to rinse off in soft water. That slippery feel is normal and harmless.

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

Nothing, as far as hardness goes. At 55 mg/L a softener would have almost nothing to remove.

Carbon filter

If the water tastes of chlorine, a pitcher or faucet carbon filter takes care of that. It does not change hardness.

EPA record for Elmont's water system

WA of Western Nassau · PWSID NY2902830

No health-based violations since 2016

Serves about 120,000 people from groundwater.

Health-based
0
Monitoring or reporting
1
Open now
0

TapWaterData ties Elmont to this system. EPA's service-area records do not name Elmont, 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 Elmont water hard?

No. It measures about 55 mg/L (3.2 grains per gallon), which the USGS classes as soft.

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

About 3.2 gpg. One grain per gallon equals 17.1 mg/L, so 55 mg/L divided by 17.1 gives 3.2.

Has the Elmont water system had EPA violations?

EPA records show no health-based violations for WA of Western Nassau since 2016. There were also 1 monitoring or reporting violation, which are about late or missing tests and notices.

Nearby cities

All 149 cities in New York

Hardness data: TapWaterData US Water Hardness (utility report, October 15, 2025), CC BY 4.0. Population: US Census Bureau. Violations: EPA ECHO. How we use them.