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City water profile

Malvern water quality

Compare local ZIP estimates, evidence quality, associated public systems, and compliance history for Malvern, Iowa.

Median indexed hardness

309PPM

One indexed ZIP

Range 309–309 PPM

State comparison
28 PPM above
State hardness rank
#264 of 683
Matched utilities
1
Active health records
0

City summary

What the indexed records say

Malvern has 1 published ZIP profile across Mills County. The indexed median is 309 PPM, compared with 281 PPM across Iowa.

Among the 683 Iowacities with an indexed median, Malvern ranks #264from highest to lowest. Across all 723 state ZIP profiles, available estimates run from 182to 834 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
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
20.3 miles
Profiles with evidence
1/1

Confidence labels

High: 0Moderate: 1Low: 0

Observation window: Aug 25, 2016 to May 27, 2026.

ZIP directory

Water reports in Malvern

Open a ZIP for site-level provenance and measurements.

ZIP code

51551

Very Hard

309 PPM

Nearest site
20.3 mi
Confidence
Moderate

View full ZIP evidence →

Public water systems

Utilities associated with this city

Malvern Water Supply

PWSID IA6545020

Groundwater
System population served
1,046
Last reported
Jun 17, 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 RuleIA6545020Jan 1, 2026Unaddressed
Lead and Copper RuleIA6545020Jul 1, 2024Resolved
NitrateIA6545020May 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 Malvern

Is the water hard?

The indexed city median is 309 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.