Hard water in Pleasant Prairie, WI
Reported by Kenosha Water Utility · October 2024
- WI typical
- 170 mg/L
- EPA health violations since 2016
- 1
- Softener for 3 people
- 24k grain
- Data
- Utility report
Tap water in Pleasant Prairie has about 140 mg/L of hardness, which is 8.2 grains per gallon. On the USGS scale that counts as hard. The number comes from Kenosha Water Utility, dated October 2024.
At 140 mg/L, Pleasant Prairie is 30 mg/L below the typical Wisconsin figure of 170. Of the 10 nearest cities we track, 3 have softer water and 6 have harder. The range nearby runs from 136 mg/L in Sturtevant to 313 in Union Grove.
What 140 mg/L means at home
Expect white crust on faucets and showerheads, plus spots on dishes that come out of the dishwasher.
Kettles collect scale quickly. Water heaters build up sediment at the bottom of the tank, which makes them work harder over time.
Soap and detergent need a little more to lather, and soap scum shows up in the tub.
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 140 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 × 8.2 gpg = 1,843 grains a day. A 24,000-grain unit regenerates about every 13 days.
EPA record for Pleasant Prairie's water system
1 health-based violation since 2016
Serves about 10,754 people from surface water.
- Health-based
- 1
- Monitoring or reporting
- 4
- Open now
- 2
EPA lists Pleasant Prairie Water Utility as the system serving Pleasant Prairie. The hardness figure above comes from a different system's report, which TapWaterData uses for Pleasant Prairie.
| 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 Pleasant Prairie water hard?
Yes. It measures about 140 mg/L (8.2 grains per gallon), which the USGS classes as hard.
What is the water hardness in Pleasant Prairie in grains per gallon?
About 8.2 gpg. One grain per gallon equals 17.1 mg/L, so 140 mg/L divided by 17.1 gives 8.2.
What size water softener do I need in Pleasant Prairie?
For 3 people using 75 gallons each per day, 8.2 gpg works out to about 1,843 grains a day. A 24,000-grain softener covers that with a regeneration about every 13 days.
Has the Pleasant Prairie water system had EPA violations?
EPA records show 1 health-based violation for Pleasant Prairie Water Utility since 2016, involving Lead and Copper Rule. There were also 4 monitoring or reporting violations, which are about late or missing tests and notices.
Nearby cities
- Kenosha140 mg/LHard
- Bristol270 mg/LVery hard
- Sturtevant136 mg/LHard
- Mount Pleasant136 mg/LHard
- Union Grove313 mg/LVery hard
- Racine136 mg/LHard
- Caledonia300 mg/LVery hard
- Burlington248 mg/LVery hard
- Oak Creek210 mg/LVery hard
- Franklin210 mg/LVery hard
Hardness data: TapWaterData US Water Hardness (utility report, October 14, 2024), CC BY 4.0. Population: US Census Bureau. Violations: EPA ECHO. How we use them.