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City water profile

Florence water quality

Compare local ZIP estimates, evidence quality, associated public systems, and compliance history for Florence, Wisconsin.

Median indexed hardness

108PPM

One indexed ZIP

Range 108–108 PPM

State comparison
180 PPM below
State hardness rank
#462 of 479
Matched utilities
2
Active health records
1

City summary

What the indexed records say

Florence has 1 published ZIP profile across Florence County. The indexed median is 108 PPM, compared with 288 PPM across Wisconsin.

Among the 479 Wisconsincities with an indexed median, Florence ranks #462from highest to lowest. Across all 556 state ZIP profiles, available estimates run from 41.3to 467 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 hard1 ZIP
Hard0 ZIPs
Very hard0 ZIPs

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
6.1 miles
Profiles with evidence
1/1

Confidence labels

High: 0Moderate: 1Low: 0

Observation window: May 16, 2016 to Sep 12, 2024.

ZIP directory

Water reports in Florence

Open a ZIP for site-level provenance and measurements.

ZIP code

54121

Moderately Hard

108 PPM

Nearest site
6.1 mi
Confidence
Moderate

View full ZIP evidence →

Public water systems

Utilities associated with this city

Florence Utility Commission

PWSID WI4190155

Groundwater
System population served
1,250
Last reported
May 29, 2026

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

Keyes Lake Mobile Home Park

PWSID WI4190087

Groundwater
System population served
30
Last reported
May 29, 2026

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

Compliance history

What EPA records show

1 unique active health-based record appears among associated systems. This does not mean every contaminant was tested at every tap.

RecordSystemPeriodStatus
LEAD AND COPPER RULE REVISIONSWI4190087Jul 2, 2025Resolved
Public NoticeWI4190087Jun 28, 2025Unaddressed
Groundwater RuleWI4190087Jun 28, 2025Unaddressed · health-based
Groundwater RuleWI4190087May 1, 2025Resolved · health-based
Groundwater RuleWI4190087May 1, 2025Resolved · health-based
Lead and Copper RuleWI4190087Jan 1, 2025Unaddressed
Radium-226WI4190087Jul 1, 2024Resolved
Radium-228WI4190087Jul 1, 2024Resolved
Lead and Copper RuleWI4190087Jun 1, 2024Unaddressed
Lead and Copper RuleWI4190087Oct 1, 2023Resolved

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 Florence

Is the water hard?

The indexed city median is 108 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.