Hard water in Junction City, KS
Reported by Junction City, City of · June 2022
- KS typical
- 138 mg/L
- EPA health violations since 2016
- 5
- Softener for 3 people
- 24k grain
- Data
- Utility report
Tap water in Junction City has about 168 mg/L of hardness, which is 9.8 grains per gallon. On the USGS scale that counts as hard. The number comes from Junction City, City of, dated June 2022.
At 168 mg/L, Junction City is 30 mg/L above the typical Kansas figure of 138. Of the 10 nearest cities we track, 7 have softer water and 3 have harder. The range nearby runs from 76 mg/L in Emporia to 363 in McPherson.
What 168 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 168 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 × 9.8 gpg = 2,210 grains a day. A 24,000-grain unit regenerates about every 10 days.
EPA record for Junction City's water system
5 health-based violations since 2016
Serves about 19,167 people from groundwater.
- Health-based
- 5
- Monitoring or reporting
- 13
- Open now
- 3
| Contaminant or rule | Violations | Period | Status |
|---|---|---|---|
| Total trihalomethanes (TTHM)a disinfection byproduct | 5 | 2021–2024 | 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 Junction City water hard?
Yes. It measures about 168 mg/L (9.8 grains per gallon), which the USGS classes as hard.
What is the water hardness in Junction City in grains per gallon?
About 9.8 gpg. One grain per gallon equals 17.1 mg/L, so 168 mg/L divided by 17.1 gives 9.8.
What size water softener do I need in Junction City?
For 3 people using 75 gallons each per day, 9.8 gpg works out to about 2,210 grains a day. A 24,000-grain softener covers that with a regeneration about every 10 days.
Has the Junction City water system had EPA violations?
EPA records show 5 health-based violations for Junction City, City of since 2016, involving Total trihalomethanes (TTHM). There were also 13 monitoring or reporting violations, which are about late or missing tests and notices.
Nearby cities
- Fort Riley140 mg/LHard
- Manhattan103 mg/LModerately hard
- Salina330 mg/LVery hard
- Emporia76 mg/LModerately hard
- Topeka145 mg/LHard
- McPherson363 mg/LVery hard
- Newton260 mg/LVery hard
- El Dorado117 mg/LModerately hard
- Lawrence142 mg/LHard
- Valley Center133 mg/LHard
Hardness data: TapWaterData US Water Hardness (utility report, June 14, 2022), CC BY 4.0. Population: US Census Bureau. Violations: EPA ECHO. How we use them.