Hard water in Richmond, KY
County estimate from 201 water samples in Madison County · July 2026
- KY typical
- 134 mg/L
- EPA health violations since 2016
- 1
- Softener for 3 people
- 24k grain
- Data
- County estimate
Water samples from around Richmond put hardness at about 186 mg/L (10.9 gpg), which would be very hard on the USGS scale. Treat this as a rough guide: it is the median of 201 samples taken across Madison County, mostly wells and streams, not a test of Richmond's treated tap water. One more reason for caution: EPA lists Richmond's water system as using surface water, which is often softer than the wells behind the county figure.
Richmond sits 52 mg/L above the typical Kentucky figure of 134. Of the 10 nearest cities we track, 8 have softer water and 1 has harder. The range nearby runs from 110 mg/L in Walton to 199 in Frankfort.
What 186 mg/L means at home
Scale forms fast here. Kettles and coffee makers need regular descaling, and showerheads clog unless you clean them.
Tank water heaters collect mineral sediment that insulates the water from the burner, so flushing the tank matters more than usual.
Dishes and glass shower doors spot easily. Soap scum and a dull film on hair or laundry are common complaints.
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
At 186 mg/L most of the trouble is scale, and only a few things deal with it.
Ion-exchange water softener
The standard whole-house fix. It swaps calcium and magnesium for sodium or potassium and needs salt plus a drain. Size it with the calculator below.
Salt-free conditioner
No salt and no drain line. It changes how minerals form scale instead of removing them, so water still tests hard.
Reverse osmosis or carbon filter
Under-sink reverse osmosis removes minerals from drinking water only. Plain carbon filters improve taste but do not soften.
3 people × 75 gallons a day × 10.9 gpg = 2,448 grains a day. A 24,000-grain unit regenerates about every 9 days.
EPA record for Richmond's water system
1 health-based violation since 2016
Serves about 35,640 people from surface water.
- Health-based
- 1
- Monitoring or reporting
- 0
- Open now
- 0
EPA lists this system as serving Richmond.
| Contaminant or rule | Violations | Period | Status |
|---|---|---|---|
| Lead and Copper Rulecorrosion control and lead sampling | 1 | 2024 | Resolved |
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 Richmond water hard?
Yes. It measures about 186 mg/L (10.9 grains per gallon), which the USGS classes as very hard.
What is the water hardness in Richmond in grains per gallon?
About 10.9 gpg. One grain per gallon equals 17.1 mg/L, so 186 mg/L divided by 17.1 gives 10.9.
What size water softener do I need in Richmond?
For 3 people using 75 gallons each per day, 10.9 gpg works out to about 2,448 grains a day. A 24,000-grain softener covers that with a regeneration about every 9 days.
Has the Richmond water system had EPA violations?
EPA records show 1 health-based violation for Richmond Utilities since 2016, involving Lead and Copper Rule.
Nearby cities
- Nicholasville160 mg/LHard
- Lexington158 mg/LHard
- Paris144 mg/LHard
- Frankfort199 mg/LVery hard
- Louisville134 mg/LHard
- Walton110 mg/LModerately hard
- St. Matthews134 mg/LHard
- Alexandria110 mg/LModerately hard
- Independence110 mg/LModerately hard
- Elizabethtown186 mg/LVery hard
Hardness data: TapWaterData US Water Hardness (county estimate, July 4, 2026), CC BY 4.0. Population: US Census Bureau. Violations: EPA ECHO. How we use them.