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City water profile

Potwin water quality

Compare local ZIP estimates, evidence quality, associated public systems, and compliance history for Potwin, Kansas.

Median indexed hardness

124PPM

One indexed ZIP

Range 124–124 PPM

State comparison
165 PPM below
State hardness rank
#448 of 484
Matched utilities
1
Active health records
0

City summary

What the indexed records say

Potwin has 1 published ZIP profile across Butler County. The indexed median is 124 PPM, compared with 289 PPM across Kansas.

Among the 484 Kansascities with an indexed median, Potwin ranks #448from highest to lowest. Across all 541 state ZIP profiles, available estimates run from 72.2to 707 PPM.

Because only one ZIP is represented, the city median and range are the same local estimate. It should not be read as multiple independent samples across the community.

Hardness distribution

How local ZIP estimates compare

Soft0 ZIPs
Moderately hard0 ZIPs
Hard1 ZIP
Very hard0 ZIPs

1 of 1 ZIP profiles have a hardness estimate. Bars count ZIP profiles, not households or laboratory samples.

Evidence quality

Distance, dates, and confidence

Median nearest distance
23.8 miles
Profiles with evidence
1/1

Confidence labels

High: 0Moderate: 1Low: 0

Observation window: Jan 19, 2016 to Jun 3, 2026.

ZIP directory

Water reports in Potwin

Open a ZIP for site-level provenance and measurements.

ZIP code

67123

Hard

124 PPM

Nearest site
23.8 mi
Confidence
Moderate

View full ZIP evidence →

Public water systems

Utilities associated with this city

Potwin, City Of

PWSID KS2001518

Surface water
System population served
424
Last reported
May 15, 2026

The system names this served city; Census place overlap links the city to this ZCTA.

Compliance history

What EPA records show

No active health-based violation appears among the associated systems in the represented EPA reporting quarter. This does not mean every contaminant was tested at every tap.

RecordSystemPeriodStatus
Total Haloacetic Acids (HAA5)KS2001518Jan 1, 2025Resolved
LEAD AND COPPER RULE REVISIONSKS2001518Oct 17, 2024Resolved
Total Haloacetic Acids (HAA5)KS2001518Oct 1, 2024Resolved
TTHMKS2001518Oct 1, 2024Resolved
Revised Total Coliform RuleKS2001518Nov 1, 2023Resolved
Total Haloacetic Acids (HAA5)KS2001518Oct 1, 2023Resolved
ChlorineKS2001518Oct 1, 2023Resolved
TTHMKS2001518Oct 1, 2023Resolved
Lead and Copper RuleKS2001518Dec 30, 2021Unaddressed

Practical next steps

Move from index to evidence

  1. 1. Open your ZIP. Check distance, dates, confidence, and the associated utility.
  2. 2. Read the current CCR. Confirm source water, detections, limits, ranges, and notices.
  3. 3. Test the tap when needed. Confirm health concerns or treatment sizing with the right method.

Questions people ask

About water in Potwin

Is the water hard?

The indexed city median is 124 PPM. Open the ZIP report to verify the distance and confidence behind that estimate.

Is the tap water safe?

Compliance history is utility-wide and cannot guarantee conditions at every tap. Check current notices and test when address-specific evidence is needed.

Do I need treatment?

Choose treatment only after confirming the problem at the property. A softener targets hardness; contaminant treatment requires a matching, verified performance claim.