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City water profile

Warsaw water quality

Compare local ZIP estimates, evidence quality, associated public systems, and compliance history for Warsaw, Missouri.

Median indexed hardness

285PPM

One indexed ZIP

Range 285–285 PPM

State comparison
49 PPM above
State hardness rank
#165 of 504
Matched utilities
5
Active health records
0

City summary

What the indexed records say

Warsaw has 1 published ZIP profile across Benton County. The indexed median is 285 PPM, compared with 236 PPM across Missouri.

Among the 504 Missouricities with an indexed median, Warsaw ranks #165from highest to lowest. Across all 556 state ZIP profiles, available estimates run from 38.3to 483 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
11.8 miles
Profiles with evidence
1/1

Confidence labels

High: 0Moderate: 1Low: 0

Observation window: Apr 11, 2016 to Apr 9, 2026.

ZIP directory

Water reports in Warsaw

Open a ZIP for site-level provenance and measurements.

ZIP code

65355

Very Hard

285 PPM

Nearest site
11.8 mi
Confidence
Moderate

View full ZIP evidence →

Public water systems

Utilities associated with this city

Warsaw Pws

PWSID MO3010835

Groundwater
System population served
2,402
Last reported
Jun 16, 2026

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

Keithley Beach Subd

PWSID MO3036166

Groundwater
System population served
240
Last reported
Jun 16, 2026

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

Blue Branch Improvement Assn Inc

PWSID MO3036123

Groundwater
System population served
200
Last reported
Jun 16, 2026

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

Oak Ridge Acres

PWSID MO1031536

Groundwater
System population served
120
Last reported
Jun 16, 2026

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

Lake Ridge Bay

PWSID MO3031364

Groundwater
System population served
120
Last reported
Jun 16, 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
Public NoticeMO3036123Feb 8, 2026Unaddressed
Revised Total Coliform RuleMO3036166Feb 1, 2026Archived · health-based
Revised Total Coliform RuleMO3036123Dec 14, 2025Resolved · health-based
LEAD AND COPPER RULE REVISIONSMO3010835Jul 2, 2025Unaddressed
LEAD AND COPPER RULE REVISIONSMO3036123Jul 2, 2025Unaddressed
LEAD AND COPPER RULE REVISIONSMO3031364Jul 2, 2025Unaddressed
Revised Total Coliform RuleMO3031364May 1, 2025Resolved
LEAD AND COPPER RULE REVISIONSMO3036166Oct 17, 2024Unaddressed
Lead and Copper RuleMO1031536Oct 1, 2024Resolved
Revised Total Coliform RuleMO3010835Feb 1, 2024Resolved

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 Warsaw

Is the water hard?

The indexed city median is 285 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.