Skip to content

City water profile

Water hardness in Eau Claire

Find official utility reports, understand hardness, and check the water system serving your home in Eau Claire, Wisconsin.

Utility-reported hardness

Not yet available

Check your provider and source →
State comparison
Unavailable
Evidence comparison rank
—
Matched utilities
8
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 →

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.

Eau Claire Waterworks

WI6180230 · Groundwater · 70,587 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
0.002 mg/L
Action level
0.015 mg/L

13% of the listed benchmark

Monitoring period: Jan 1, 2023 to Jun 30, 2023

Violation history (0)

No record returned in this imported window. This is not a guarantee of tap-water safety.

Villa Diann Mhp

WI6180290 · Groundwater · 420 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 (3)

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
0.0073 mg/L
Action level
0.015 mg/L

49% of the listed benchmark

Monitoring period: Jun 1, 2025 to Sep 30, 2025

Copper (90th percentile)

EPA SDWIS Lead and Copper Rule samples

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

125% of the listed benchmark

Monitoring period: Jul 1, 1993 to Dec 31, 1993

Combined Radium (-226 and -228)

EPA SDWIS reported health-based violation

Reported violation
Reported level
7.985 PCI/L
Maximum contaminant level
5 PCI/L

160% of the listed benchmark

Monitoring period: Jan 1, 2026 to Mar 31, 2026

Violation history (4)
Imported violation history for Villa Diann Mhp
RuleStatusPeriod
Combined Radium (-226 and -228)Health-basedArchivedJan 1, 2026 to Mar 31, 2026
Lead and Copper RuleResolvedJun 1, 2024 to Aug 12, 2025
Revised Total Coliform RuleResolvedJul 1, 2022 to Jul 31, 2022
Lead and Copper RuleResolvedJan 1, 2022 to Jan 11, 2022

Pine Edge Mhp

WI6180291 · Groundwater · 300 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
0.0055 mg/L
Action level
0.015 mg/L

37% of the listed benchmark

Monitoring period: Jun 1, 2024 to Sep 30, 2024

Violation history (1)
Imported violation history for Pine Edge Mhp
RuleStatusPeriod
Lead and Copper RuleResolvedJan 1, 2022 to Jan 12, 2022

Priory The

WI6180281 · Groundwater · 185 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
3.5e-4 mg/L
Action level
0.015 mg/L

2% of the listed benchmark

Monitoring period: Jun 1, 2024 to Sep 30, 2024

Copper (90th percentile)

EPA SDWIS Lead and Copper Rule samples

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

192% of the listed benchmark

Monitoring period: Jun 1, 2017 to Sep 30, 2017

Violation history (5)
Imported violation history for Priory The
RuleStatusPeriod
Lead and Copper RuleResolvedJan 1, 2025 to Jun 3, 2025
Lead and Copper RuleResolvedJan 1, 2022 to Jan 6, 2022
Radium-228ResolvedJan 1, 2021 to Dec 31, 2021
Combined Radium (-226 and -228)ResolvedJan 1, 2021 to Dec 31, 2021
Gross Alpha, Excl. Radon and UResolvedJan 1, 2021 to Dec 31, 2021

Cozy Mhp Llc Front

WI6180286 · Groundwater · 111 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
0.0053 mg/L
Action level
0.015 mg/L

35% of the listed benchmark

Monitoring period: Jul 1, 2025 to Dec 31, 2025

Copper (90th percentile)

EPA SDWIS Lead and Copper Rule samples

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

115% of the listed benchmark

Monitoring period: Jul 1, 2025 to Dec 31, 2025

Violation history (2)
Imported violation history for Cozy Mhp Llc Front
RuleStatusPeriod
Lead and Copper RuleHealth-basedResolvedOct 1, 2024 to Jun 19, 2025
NitrateResolvedJul 1, 2022 to Sep 30, 2022

Bonnie Vale Park 1

WI6180287 · Groundwater · 70 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
0.0028 mg/L
Action level
0.015 mg/L

19% of the listed benchmark

Monitoring period: Jun 1, 2024 to Sep 30, 2024

Violation history (0)

No record returned in this imported window. This is not a guarantee of tap-water safety.

Bonnie Vale Park 2

WI6180300 · Groundwater · 51 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
0.0021 mg/L
Action level
0.015 mg/L

14% of the listed benchmark

Monitoring period: Jun 1, 2024 to Sep 30, 2024

Copper (90th percentile)

EPA SDWIS Lead and Copper Rule samples

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

250% of the listed benchmark

Monitoring period: Dec 31, 1993 to Jun 30, 1994

Violation history (2)
Imported violation history for Bonnie Vale Park 2
RuleStatusPeriod
Lead and Copper RuleResolvedJun 1, 2021 to Nov 30, 2021
Lead and Copper RuleResolvedJun 1, 2021 to Nov 30, 2021

Cozy Mhp Llc Back

WI6180513 · Groundwater · 35 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
0.0076 mg/L
Action level
0.015 mg/L

50% of the listed benchmark

Monitoring period: Jun 1, 2024 to Sep 30, 2024

Violation history (0)

No record returned in this imported window. This is not a guarantee of tap-water safety.

City summary

What the indexed records say

Eau Claire has 2 published ZIP profiles across Eau Claire County. No qualifying nearby hardness observation is available for the city.

The —–— PPM range shows how much the available ZIP estimates vary within the city label.

Hardness distribution

How local ZIP estimates compare

Soft0 ZIPs
Moderately hard0 ZIPs
Hard0 ZIPs
Very hard0 ZIPs

0 of 2 ZIP profiles have a hardness estimate. Bars count ZIP profiles, not households or laboratory samples.

Evidence quality

Distance, dates, and confidence

Median nearest distance
— miles
Profiles with evidence
0/2

Confidence labels

High: 0Moderate: 0Low: 0

Observation window: unavailable to unavailable.

ZIP directory

Water reports in Eau Claire

Open a ZIP for site-level provenance and measurements.

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 Eau Claire

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.