Lynbrook, NY water hardness

Tap water hardness
32mg/L
1.9gpg
Soft

Reported by Liberty Utilities New York - Lynbrook · September 2025

NY typical
31 mg/L
EPA health violations since 2016
5
Data
Utility report

Tap water in Lynbrook has about 32 mg/L of hardness, which is 1.9 grains per gallon. On the USGS scale that counts as soft. The number comes from Liberty Utilities New York - Lynbrook, dated September 2025.

Lynbrook on the hardness scale, with nearby cities
060120180240300360+NY typical 31Lakeview: 39 mg/LLakeview 39Rockville Centre: 39 mg/LRockville Centre 39Oceanside: 42 mg/LOceanside 42Baldwin: 42 mg/LBaldwin 42West Hempstead: 48 mg/LWest Hempstead 48Franklin Square: 48 mg/LFranklin Square 48Malverne: 51 mg/LMalverne 51Hempstead: 53 mg/LHempstead 53North Valley Stream: 55 mg/LNorth Valley Stream 55Elmont: 55 mg/LElmont 55Lynbrook 32mg/L as calcium carbonate060120180240300360+NY 31Lakeview: 39 mg/LLakeview 39Rockville Centre: 39 mg/LRockville. 39Oceanside: 42 mg/LOceanside 42West Hempstead: 48 mg/LWest Hemps. 48Malverne: 51 mg/LMalverne 51North Valley Stream: 55 mg/LNorth Vall. 5532 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 32 mg/L, Lynbrook is close to the typical New York figure of 31 mg/L. None of the 10 nearest cities we track has softer water. The range nearby runs from 39 mg/L in Lakeview to 55 in North Valley Stream.

What 32 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 32 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 Lynbrook's water system

Liberty Utilities New York - Lynbrook · PWSID NY2902835

5 health-based violations since 2016

Serves about 220,000 people from groundwater.

Health-based
5
Monitoring or reporting
0
Open now
0

TapWaterData ties Lynbrook to this system. EPA's service-area records do not name Lynbrook, 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 sampling52023–2025Resolved

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 Lynbrook water hard?

No. It measures about 32 mg/L (1.9 grains per gallon), which the USGS classes as soft.

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

About 1.9 gpg. One grain per gallon equals 17.1 mg/L, so 32 mg/L divided by 17.1 gives 1.9.

Has the Lynbrook water system had EPA violations?

EPA records show 5 health-based violations for Liberty Utilities New York - Lynbrook since 2016, involving Lead and Copper Rule.

Nearby cities

All 149 cities in New York

Hardness data: TapWaterData US Water Hardness (utility report, September 8, 2025), CC BY 4.0. Population: US Census Bureau. Violations: EPA ECHO. How we use them.