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City water profile

Durham water quality

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

Median indexed hardness

305PPM

One indexed ZIP

Range 305–305 PPM

State comparison
16 PPM above
State hardness rank
#167 of 484
Matched utilities
2
Active health records
0

City summary

What the indexed records say

Durham has 1 published ZIP profile across Marion County. The indexed median is 305 PPM, compared with 289 PPM across Kansas.

Among the 484 Kansascities with an indexed median, Durham ranks #167from 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. 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 hard0 ZIPs
Hard0 ZIPs
Very hard1 ZIP

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
30.5 miles
Profiles with evidence
1/1

Confidence labels

High: 0Moderate: 0Low: 1

Observation window: Mar 29, 2016 to Aug 14, 2018.

ZIP directory

Water reports in Durham

Open a ZIP for site-level provenance and measurements.

ZIP code

67438

Very Hard

305 PPM

Nearest site
30.5 mi
Confidence
Low

View full ZIP evidence →

Public water systems

Utilities associated with this city

Marion Co Rwd 1

PWSID KS2011510

Groundwater
System population served
780
Last reported
May 15, 2026

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

Durham, City Of

PWSID KS2011502

Groundwater
System population served
86
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
ChlorineKS2011510Aug 1, 2024Resolved
Revised Total Coliform RuleKS2011510Aug 1, 2024Resolved
Lead and Copper RuleKS2011510Apr 1, 2023Resolved
Lead and Copper RuleKS2011510Oct 1, 2022Resolved
Lead and Copper RuleKS2011510Jan 1, 2021Resolved
Public NoticeKS2011502Nov 27, 2020Unaddressed
Public NoticeKS2011502Apr 22, 2020Unaddressed

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 Durham

Is the water hard?

The indexed city median is 305 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.