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City water profile

Water hardness in Warsaw

Find official utility reports, understand hardness, and check the water system serving your home in Warsaw, Missouri.

Utility-reported hardness

Not yet available

Check your provider and source →
State comparison
Unavailable
Evidence comparison rank
—
Matched utilities
5
Active health records
0

Your tap water

What does the utility report?

Match the utility name to your water bill. These results describe the utility’s water, not a test at your home. A ZIP can include several water systems.

Utility hardness unavailable in this index

Nearby river or groundwater samples cannot tell us the hardness coming out of your tap. Ask your water provider for total hardness as CaCO₃, or test it at home.

Find an official utility report →
Convert a hardness result →Test your tap →

Match the name on your water bill

Your utility’s measurements and compliance records

These are possible serving systems. A record for one system does not apply to every home in this ZIP. Confirm your provider before interpreting a measurement or notice. Federal records can lag current utility notices.

EPA snapshot: 2026Q2. Historical window begins Jan 1, 2021.

Warsaw Pws

MO3010835 · Groundwater · 2,402 people served system-wide

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

No active health-based record in this imported snapshot

Find this utility’s official report →
Measurements (1)

An action level is a regulatory trigger, not a pass/fail health boundary. A reported zero is the value in the source record and does not establish that lead is absent at your tap.

Lead (90th percentile)

EPA SDWIS Lead and Copper Rule samples

Below action level
Reported level
0.0026 mg/L
Action level
0.015 mg/L

17% of the listed benchmark

Monitoring period: Jan 1, 2022 to Dec 31, 2024

Violation history (2)
Imported violation history for Warsaw Pws
RuleStatusPeriod
LEAD AND COPPER RULE REVISIONSUnaddressedJul 2, 2025
Revised Total Coliform RuleResolvedFeb 1, 2024 to Feb 29, 2024

Keithley Beach Subd

MO3036166 · Groundwater · 240 people served system-wide

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

No active health-based record in this imported snapshot

Find this utility’s official report →
Measurements (1)

An action level is a regulatory trigger, not a pass/fail health boundary. A reported zero is the value in the source record and does not establish that lead is absent at your tap.

Lead (90th percentile)

EPA SDWIS Lead and Copper Rule samples

Below action level
Reported level
0.0017 mg/L
Action level
0.015 mg/L

12% of the listed benchmark

Monitoring period: Jan 1, 2023 to Dec 31, 2025

Violation history (5)
Imported violation history for Keithley Beach Subd
RuleStatusPeriod
Revised Total Coliform RuleHealth-basedArchivedFeb 1, 2026 to Feb 28, 2026
LEAD AND COPPER RULE REVISIONSUnaddressedOct 17, 2024
Nitrate-NitriteArchivedJan 1, 2024 to Dec 31, 2024
TTHMResolvedJan 1, 2022 to Dec 31, 2024
Total Haloacetic Acids (HAA5)ResolvedJan 1, 2022 to Dec 31, 2024

Blue Branch Improvement Assn Inc

MO3036123 · Groundwater · 200 people served system-wide

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

No active health-based record in this imported snapshot

Find this utility’s official report →
Measurements (1)

An action level is a regulatory trigger, not a pass/fail health boundary. A reported zero is the value in the source record and does not establish that lead is absent at your tap.

Lead (90th percentile)

EPA SDWIS Lead and Copper Rule samples

Below action level
Reported level
0.0018 mg/L
Action level
0.015 mg/L

12% of the listed benchmark

Monitoring period: Jan 1, 2023 to Dec 31, 2023

Violation history (4)
Imported violation history for Blue Branch Improvement Assn Inc
RuleStatusPeriod
Public NoticeUnaddressedFeb 8, 2026
Revised Total Coliform RuleHealth-basedResolvedDec 14, 2025 to Jan 2, 2026
LEAD AND COPPER RULE REVISIONSUnaddressedJul 2, 2025
Lead and Copper RuleResolvedNov 1, 2022 to Nov 6, 2023

Oak Ridge Acres

MO1031536 · Groundwater · 120 people served system-wide

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

No active health-based record in this imported snapshot

Find this utility’s official report →
Measurements (1)

An action level is a regulatory trigger, not a pass/fail health boundary. A reported zero is the value in the source record and does not establish that lead is absent at your tap.

Lead (90th percentile)

EPA SDWIS Lead and Copper Rule samples

Below action level
Reported level
6.4e-4 mg/L
Action level
0.015 mg/L

4% of the listed benchmark

Monitoring period: Jan 1, 2022 to Dec 31, 2024

Violation history (1)
Imported violation history for Oak Ridge Acres
RuleStatusPeriod
Lead and Copper RuleResolvedOct 1, 2024 to Apr 17, 2025

Lake Ridge Bay

MO3031364 · Groundwater · 120 people served system-wide

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

No active health-based record in this imported snapshot

Find this utility’s official report →
Measurements (2)

An action level is a regulatory trigger, not a pass/fail health boundary. A reported zero is the value in the source record and does not establish that lead is absent at your tap.

Lead (90th percentile)

EPA SDWIS Lead and Copper Rule samples

Below action level
Reported level
0.0014 mg/L
Action level
0.015 mg/L

9% of the listed benchmark

Monitoring period: Jan 1, 2023 to Dec 31, 2025

Copper (90th percentile)

EPA SDWIS Lead and Copper Rule samples

Above action level
Reported level
2.9085 mg/L
Action level
1.3 mg/L

224% of the listed benchmark

Monitoring period: Jan 1, 2007 to Jun 30, 2007

Violation history (2)
Imported violation history for Lake Ridge Bay
RuleStatusPeriod
LEAD AND COPPER RULE REVISIONSUnaddressedJul 2, 2025
Revised Total Coliform RuleResolvedMay 1, 2025 to Jul 7, 2025

City summary

What the indexed records say

Warsaw has 1 published ZIP profile across Benton County. The regional-evidence median is 275 PPM. The city does not meet the stricter comparison standard.

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
11.8 miles
Profiles with evidence
1/1

Confidence labels

High: 0Moderate: 0Low: 1

Observation window: Jul 14, 2016 to Jun 29, 2017.

ZIP directory

Water reports in Warsaw

Open a ZIP for site-level provenance and measurements.

ZIP code

65355

Very Hard

274.5 PPM

Nearest site
11.8 mi
Confidence
Low

View full ZIP evidence →

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. Use a measured hardness result. Confirm health concerns or treatment sizing with the right method.

Questions people ask

About water in Warsaw

Is the water hard?

Check the utility-reported result above when available. Nearby environmental samples cannot establish tap-water hardness. Ask your provider or test your tap.

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.