Huntley, IL water hardness

Tap water hardness
31mg/L
1.8gpg
Soft

Reported by Huntley · March 2024

IL typical
139 mg/L
EPA health violations since 2016
1
Data
Utility report

Huntley water measures 31 mg/L (1.8 gpg) of hardness, soft by USGS standards. The number comes from Huntley, dated March 2024.

Huntley on the hardness scale, with nearby cities
060120180240300360+IL typical 139West Dundee: 14 mg/LWest Dundee 14Hampshire: 60 mg/LHampshire 60Pingree Grove: 65 mg/LPingree Grove 65Carpentersville: 67 mg/LCarpentersville 67Elgin: 111 mg/LElgin 111Lake in the Hills: 283 mg/LLake in the Hills 283Gilberts: 328 mg/LGilberts 328Algonquin: 378 mg/LAlgonquin 378Crystal Lake: 388 mg/LCrystal Lake 388Cary: 378 mg/LCary 378Huntley 31mg/L as calcium carbonate060120180240300360+IL 139West Dundee: 14 mg/LWest Dundee 14Hampshire: 60 mg/LHampshire 60Pingree Grove: 65 mg/LPingree Gr. 65Lake in the Hills: 283 mg/LLake in th. 283Gilberts: 328 mg/LGilberts 328Algonquin: 378 mg/LAlgonquin 37831 mg/Lmg/L as calcium carbonate
Soft 0–60 mg/LModerately hard 61–120 mg/LHard 121–180 mg/LVery hard 181+ mg/L

Huntley sits 108 mg/L below the typical Illinois figure of 139. Of the 10 nearest cities we track, 1 has softer water and 9 have harder. The range nearby runs from 14 mg/L in West Dundee to 388 in Crystal Lake.

What 31 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 31 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 Huntley's water system

Huntley · PWSID IL1110350

1 health-based violation since 2016

Serves about 28,495 people from groundwater.

Health-based
1
Monitoring or reporting
0
Open now
0
20162017201820192020202120222023202420252026Total Coliform Rule'16'18'20'22'24'26Total Coliform Rule
Each dot is one health-based violation, placed at the start of its compliance period.
Contaminant or ruleViolationsPeriodStatus
Total Coliform Rulebacteria12025Resolved

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 Huntley water hard?

No. It measures about 31 mg/L (1.8 grains per gallon), which the USGS classes as soft.

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

About 1.8 gpg. One grain per gallon equals 17.1 mg/L, so 31 mg/L divided by 17.1 gives 1.8.

Has the Huntley water system had EPA violations?

EPA records show 1 health-based violation for Huntley since 2016, involving Total Coliform Rule.

Nearby cities

All 192 cities in Illinois

Hardness data: TapWaterData US Water Hardness (utility report, March 6, 2024), CC BY 4.0. Population: US Census Bureau. Violations: EPA ECHO. How we use them.