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City water profile

Winfield water quality

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

Median indexed hardness

100PPM

2 indexed ZIPs

Range 92.2–108.1 PPM

State comparison
189 PPM below
State hardness rank
#466 of 484
Matched utilities
4
Active health records
0

City summary

What the indexed records say

Winfield has 2 published ZIP profiles across Cowley County. The indexed median is 100 PPM, compared with 289 PPM across Kansas.

Among the 484 Kansascities with an indexed median, Winfield ranks #466from highest to lowest. Across all 541 state ZIP profiles, available estimates run from 72.2to 707 PPM.

The 92.2–108.1 PPM range shows how much the available ZIP estimates vary within the city label. At least one estimate is marked low confidence, so observation distance and date deserve extra attention.

Hardness distribution

How local ZIP estimates compare

Soft0 ZIPs
Moderately hard2 ZIPs
Hard0 ZIPs
Very hard0 ZIPs

2 of 2 ZIP profiles have a hardness estimate. Bars count ZIP profiles, not households or laboratory samples.

Evidence quality

Distance, dates, and confidence

Median nearest distance
33 miles
Profiles with evidence
2/2

Confidence labels

High: 0Moderate: 0Low: 2

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

ZIP directory

Water reports in Winfield

Open a ZIP for site-level provenance and measurements.

ZIP code

67019

Moderately Hard

92.2 PPM

Nearest site
33 mi
Confidence
Low

View full ZIP evidence →

ZIP code

67156

Moderately Hard

108.1 PPM

Nearest site
29.6 mi
Confidence
Low

View full ZIP evidence →

Public water systems

Utilities associated with this city

Winfield, City Of

PWSID KS2003513

Surface water
System population served
11,726
Last reported
May 15, 2026

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

Cowley Co Rwd 2

PWSID KS2003512

Surface water
System population served
600
Last reported
May 15, 2026

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

Cowley Co Rwd 4

PWSID KS2003511

Surface water
System population served
500
Last reported
May 15, 2026

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

Cowley Co Rwd 8

PWSID KS2003515

Surface water
System population served
50
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
TTHMKS2003515Jan 1, 2026Archived
Total Haloacetic Acids (HAA5)KS2003515Jan 1, 2026Archived
LEAD AND COPPER RULE REVISIONSKS2003512Jul 2, 2025Unaddressed
LEAD AND COPPER RULE REVISIONSKS2003515Jul 2, 2025Unaddressed
LEAD AND COPPER RULE REVISIONSKS2003515Oct 17, 2024Resolved
Total Haloacetic Acids (HAA5)KS2003515Jan 1, 2024Resolved
TTHMKS2003515Jan 1, 2024Resolved
Revised Total Coliform RuleKS2003511Aug 1, 2023Resolved
Revised Total Coliform RuleKS2003515Aug 1, 2023Resolved
ChlorineKS2003511Jul 1, 2023Resolved

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 Winfield

Is the water hard?

The indexed city median is 100 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.