City water profile

Water hardness in Superior

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

Utility-reported hardness

Not yet available

Check your provider and source →

State comparison: Unavailable
Evidence comparison rank: —
Matched utilities: 2
Active health records: 3

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.

Superior Water Light & Power Company

WI8160147 · Surface water · 26,084 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: 0.0056 mg/L
Action level: 0.015 mg/L

37% of the listed benchmark

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

Violation history (2)

Imported violation history for Superior Water Light & Power Company
Rule	Status	Period
LEAD AND COPPER RULE REVISIONSHealth-based	Resolved	Oct 17, 2024 to Mar 24, 2025
Public Notice	Unaddressed	Oct 17, 2024

Manitou Falls Sanitary District No 1

WI8160145 · Groundwater · 95 people served system-wide

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

3 reported active health-based record(s) for this system

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: 0.0013 mg/L
Action level: 0.015 mg/L

9% of the listed benchmark

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

Violation history (70)

Imported violation history for Manitou Falls Sanitary District No 1
Rule	Status	Period
Groundwater Rule	Unaddressed	Mar 21, 2026
E. COLI	Unaddressed	Jan 14, 2026
E. COLI	Unaddressed	Dec 24, 2025
E. COLI	Unaddressed	Dec 10, 2025
E. COLI	Unaddressed	Oct 15, 2025
Consumer Confidence Rule	Unaddressed	Jul 1, 2025
Lead and Copper Rule	Unaddressed	Jul 1, 2025
Consumer Confidence Rule	Unaddressed	Jul 1, 2025
Lead and Copper RuleHealth-based	Unaddressed	Mar 26, 2025
Public Notice	Unaddressed	Mar 26, 2025
Public Notice	Unaddressed	Mar 1, 2025
Public Notice	Unaddressed	Feb 10, 2025
Revised Total Coliform Rule	Resolved	Feb 10, 2025 to Feb 12, 2025
Public Notice	Unaddressed	Feb 10, 2025
Revised Total Coliform RuleHealth-based	Resolved	Feb 10, 2025 to Feb 12, 2025
Public Notice	Unaddressed	Jan 16, 2025
E. COLI	Unaddressed	Jan 16, 2025
Nitrate	Archived	Jan 1, 2025 to Dec 31, 2025
TTHM	Archived	Jan 1, 2025 to Dec 31, 2025
Public Notice	Unaddressed	Jan 1, 2025
Total Haloacetic Acids (HAA5)	Archived	Jan 1, 2025 to Dec 31, 2025
LEAD AND COPPER RULE REVISIONSHealth-based	Unaddressed	Oct 17, 2024
Public Notice	Unaddressed	Oct 17, 2024
Public Notice	Unaddressed	Oct 17, 2024
LEAD AND COPPER RULE REVISIONS	Resolved	Oct 17, 2024 to Nov 5, 2024
Public Notice	Unaddressed	Oct 1, 2024
Public Notice	Unaddressed	Jul 1, 2024
Stage 1 Disinfectants and Disinfection Byproducts RuleHealth-based	Unaddressed	Jun 2, 2024
Revised Total Coliform RuleHealth-based	Resolved	Dec 9, 2023 to Jun 20, 2024
Public Notice	Resolved	Dec 9, 2023 to Sep 28, 2024
Revised Total Coliform Rule	Resolved	Dec 9, 2023 to Jun 20, 2024
E. COLI	Resolved	Nov 9, 2023 to Jun 25, 2024
Lead and Copper Rule	Unaddressed	Oct 1, 2023
Chlorine	Resolved	Oct 1, 2023 to Dec 31, 2023
Public Notice	Resolved	Apr 1, 2023 to Sep 28, 2024
CHLOROBENZENE	Resolved	Jan 1, 2023 to Dec 31, 2023
1,2,4-Trichlorobenzene	Resolved	Jan 1, 2023 to Dec 31, 2023
cis-1,2-Dichloroethylene	Resolved	Jan 1, 2023 to Dec 31, 2023
Xylenes, Total	Resolved	Jan 1, 2023 to Dec 31, 2023
DICHLOROMETHANE	Resolved	Jan 1, 2023 to Dec 31, 2023
o-Dichlorobenzene	Resolved	Jan 1, 2023 to Dec 31, 2023
1,2-Dichloroethane	Resolved	Jan 1, 2023 to Dec 31, 2023
1,1,1-Trichloroethane	Resolved	Jan 1, 2023 to Dec 31, 2023
1,1,2-Trichloroethane	Resolved	Jan 1, 2023 to Dec 31, 2023
Benzene	Resolved	Jan 1, 2023 to Dec 31, 2023
Total Haloacetic Acids (HAA5)	Resolved	Jan 1, 2023 to Dec 31, 2023
Toluene	Resolved	Jan 1, 2023 to Dec 31, 2023
Carbon tetrachloride	Resolved	Jan 1, 2023 to Dec 31, 2023
Tetrachloroethylene	Resolved	Jan 1, 2023 to Dec 31, 2023
Public Notice	Resolved	Jan 1, 2023 to Sep 28, 2024
Trichloroethylene	Resolved	Jan 1, 2023 to Dec 31, 2023
1,2-Dichloropropane	Resolved	Jan 1, 2023 to Dec 31, 2023
trans-1,2-Dichloroethylene	Resolved	Jan 1, 2023 to Dec 31, 2023
p-Dichlorobenzene	Resolved	Jan 1, 2023 to Dec 31, 2023
1,1-Dichloroethylene	Resolved	Jan 1, 2023 to Dec 31, 2023
Styrene	Resolved	Jan 1, 2023 to Dec 31, 2023
Lead and Copper Rule	Unaddressed	Jan 1, 2023
Vinyl chloride	Resolved	Jan 1, 2023 to Dec 31, 2023
Ethylbenzene	Resolved	Jan 1, 2023 to Dec 31, 2023
TTHM	Resolved	Jan 1, 2023 to Dec 31, 2023
Public Notice	Resolved	Dec 1, 2022 to Jun 26, 2024
Public Notice	Resolved	Dec 1, 2022 to Jun 26, 2024
Lead and Copper RuleHealth-based	Resolved	Oct 1, 2022 to Jun 26, 2024
Lead and Copper Rule	Resolved	Jul 1, 2022 to Feb 12, 2023
Lead and Copper Rule	Resolved	Jun 1, 2022 to Nov 30, 2022
Lead and Copper Rule	Resolved	Jun 1, 2022 to Nov 30, 2022
Chlorine	Resolved	Oct 1, 2021 to Dec 31, 2021
Stage 1 Disinfectants and Disinfection Byproducts RuleHealth-based	Resolved	Jun 2, 2021 to Sep 22, 2021
Total Haloacetic Acids (HAA5)	Resolved	Jan 1, 2021 to Dec 31, 2021
TTHM	Resolved	Jan 1, 2021 to Dec 31, 2021

City summary

What the indexed records say

Superior has 2 published ZIP profiles across Douglas County. The regional-evidence median is 84 PPM. The city does not meet the stricter comparison standard.

The 84.3–84.3 PPM range shows how much the available ZIP estimates vary within the city label. 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 hard2 ZIPs

Hard0 ZIPs

Very hard0 ZIPs

2 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: 13.2 miles
Profiles with evidence: 2/2

Confidence labels

High: 0Moderate: 0Low: 2

Observation window: Aug 30, 2016 to Mar 9, 2017.

ZIP directory

Water reports in Superior

Open a ZIP for site-level provenance and measurements.

ZIP code

54874

Moderately Hard

84.3 PPM

Nearest site: 13.2 mi
Confidence: Low

View full ZIP evidence →

ZIP code

54880

Moderately Hard

84.3 PPM

Nearest site: 5.9 mi
Confidence: Low

View full ZIP evidence →

Practical next steps

Move from index to evidence

1. Open your ZIP. Check distance, dates, confidence, and the associated utility.
2. Read the current CCR. Confirm source water, detections, limits, ranges, and notices.
3. Use a measured hardness result. Confirm health concerns or treatment sizing with the right method.

Continue comparing

Other Wisconsin communities

Gordon

Douglas County

— No median

Ashland

Ashland County

74 PPM median

Niagara

Marinette County

69 PPM median

Abrams

Oconto County

118 PPM median

Oconto Falls

Oconto County

118 PPM median

Pulaski

Shawano County

118 PPM median

Search all 479 Wisconsin cities →

Questions people ask

About water in Superior

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.