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City water profile

Randolph water quality

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

Median indexed hardness

329PPM

One indexed ZIP

Range 328.5–328.5 PPM

State comparison
40 PPM above
State hardness rank
#125 of 484
Matched utilities
1
Active health records
0

City summary

What the indexed records say

Randolph has 1 published ZIP profile across Riley County. The indexed median is 329 PPM, compared with 289 PPM across Kansas.

Among the 484 Kansascities with an indexed median, Randolph ranks #125from 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
31.2 miles
Profiles with evidence
1/1

Confidence labels

High: 0Moderate: 0Low: 1

Observation window: Nov 8, 2016 to Aug 20, 2025.

ZIP directory

Water reports in Randolph

Open a ZIP for site-level provenance and measurements.

ZIP code

66554

Very Hard

328.5 PPM

Nearest site
31.2 mi
Confidence
Low

View full ZIP evidence →

Public water systems

Utilities associated with this city

Randolph, City Of

PWSID KS2016126

Groundwater
System population served
167
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
LEAD AND COPPER RULE REVISIONSKS2016126Jul 2, 2025Unaddressed
Revised Total Coliform RuleKS2016126May 1, 2025Resolved
ChlorineKS2016126May 1, 2025Resolved
Revised Total Coliform RuleKS2016126Feb 1, 2023Resolved
ChlorineKS2016126Jan 1, 2023Resolved
Total Haloacetic Acids (HAA5)KS2016126Jan 1, 2021Resolved

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 Randolph

Is the water hard?

The indexed city median is 329 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.