Sleepy Hollow, NY water hardness

Tap water hardness
22mg/L
1.3gpg
Soft

Reported by Sleepy Hollow (Village) · May 2025

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

Tap water in Sleepy Hollow has about 22 mg/L of hardness, which is 1.3 grains per gallon. On the USGS scale that counts as soft. The number comes from Sleepy Hollow (Village), dated May 2025.

Sleepy Hollow on the hardness scale, with nearby cities
060120180240300360+NY typical 31Irvington: 6 mg/LIrvington 6Elmsford: 17 mg/LElmsford 17Greenville: 17 mg/LGreenville 17Tarrytown: 19 mg/LTarrytown 19White Plains: 21 mg/LWhite Plains 21Briarcliff Manor: 30 mg/LBriarcliff Manor 30Pleasantville: 32 mg/LPleasantville 32Ossining: 103 mg/LOssining 103New City: 106 mg/LNew City 106Croton-on-Hudson: 107 mg/LCroton-on-Hudson 107Sleepy Hollow 22mg/L as calcium carbonate060120180240300360+NY 31Irvington: 6 mg/LIrvington 6Elmsford: 17 mg/LElmsford 17Tarrytown: 19 mg/LTarrytown 19Briarcliff Manor: 30 mg/LBriarcliff. 30Pleasantville: 32 mg/LPleasantvi. 32Ossining: 103 mg/LOssining 10322 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 22 mg/L, Sleepy Hollow is close to the typical New York figure of 31 mg/L. Of the 10 nearest cities we track, 5 have softer water and 5 have harder. The range nearby runs from 6 mg/L in Irvington to 107 in Croton-on-Hudson.

What 22 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 22 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 Sleepy Hollow's water system

Sleepy Hollow (Village) · PWSID NY5903450

No health-based violations since 2016

Serves about 9,870 people from surface water.

Health-based
0
Monitoring or reporting
2
Open now
0

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 Sleepy Hollow water hard?

No. It measures about 22 mg/L (1.3 grains per gallon), which the USGS classes as soft.

What is the water hardness in Sleepy Hollow in grains per gallon?

About 1.3 gpg. One grain per gallon equals 17.1 mg/L, so 22 mg/L divided by 17.1 gives 1.3.

Has the Sleepy Hollow water system had EPA violations?

EPA records show no health-based violations for Sleepy Hollow (Village) since 2016. There were also 2 monitoring or reporting violations, 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, May 18, 2025), CC BY 4.0. Population: US Census Bureau. Violations: EPA ECHO. How we use them.