Hardness
Moderately Hard
108 PPM · 6.3 GPG
Local water dashboard
Official source aggregationWater quality in Florence, WI 54121
A source-transparent look at local hardness, associated public water systems, EPA compliance history, and the measurements that are—and are not—available for Florence County.
1 active health-based violation
- Primary matched system
- Florence Utility Commission
- Source water
- Groundwater
- County
- Florence County
- Profile updated
At a glance
What the current records say
EPA quarter 2026Q2
Compliance screen
Review needed
1 active health-based record
Lead 90th percentile
0.0081 mg/L
54% of action level
Utility match
2 systems
Serves 1,250 people system-wide
Hardness meter
How hard is the water?
Estimated local hardness
USGS hardness classification scale
108 PPM
Soft
0–59Moderate
60–120Hard
121–180Very hard
181+
0–59Moderate
60–120Hard
121–180Very hard
181+
Parts per million
108
mg/L as CaCO₃ equivalent
Grains per gallon
6.3
1 GPG ≈ 17.1 PPM
What this means at home
At 108 PPM, mineral scale can build up on fixtures and heating elements, reduce soap lather, and leave visible spotting. Hardness is primarily an aesthetic and appliance concern—not itself a tap-water safety rating.
USGS sites used
25
Nearest site
6.1 mi
Observation range
May 16, 2016–Sep 12, 2024
Estimate confidence
Moderate
Median of the latest qualifying hardness observation at each nearby monitoring site. Nearest monitoring location: FC-38/17E/14-0188 (Well).USGS source documentation ↗
Regional context
Is 54121 typical?
These comparisons use other indexed ZIP estimates, not utility tap samples. They help show local context without replacing a household test.
Florence median
108 PPM
About the same1 indexed ZIP readings · Range 108–108 PPM
Wisconsin median
288 PPM
180 PPM lower556 indexed ZIP readings · Range 41.3–467 PPM
EPA benchmark screen
Contaminant snapshot
Available numerical results from associated SDWIS community water systems, compared with the applicable action level or federal MCL. Federal measured-value coverage is incomplete.
1 pass
Lead (PB90)
0.0081 mg/L
Reported Sep 30, 2025
Copper (CU90)
Not available
No numerical 90th-percentile result
Numerical coverage
1 comparable result
Missing values remain blank; absence is not treated as a pass.
Lead (90th percentile)
Measured in mg/L
Local 0.0081
EPA limit 0.015
Share of EPA benchmark
100% line = listed limit
2026Q2
- All records
- 16
- Health-based
- 4
- Active health-based
- 1
| Contaminant or rule | System | Status | Period |
|---|---|---|---|
| LEAD AND COPPER RULE REVISIONS | WI4190087 | Resolved | Jul 2, 2025through Oct 15, 2025 |
| Public Notice | WI4190087 | Unaddressed | Jun 28, 2025 |
| Groundwater RuleHealth-based | WI4190087 | Unaddressed | Jun 28, 2025 |
| Groundwater RuleHealth-based | WI4190087 | Resolved | May 1, 2025through Jul 30, 2025 |
| Groundwater RuleHealth-based | WI4190087 | Resolved | May 1, 2025through Aug 22, 2025 |
| Lead and Copper Rule | WI4190087 | Unaddressed | Jan 1, 2025 |
| Radium-226 | WI4190087 | Resolved | Jul 1, 2024through Sep 30, 2024 |
| Radium-228 | WI4190087 | Resolved | Jul 1, 2024through Sep 30, 2024 |
| Lead and Copper Rule | WI4190087 | Unaddressed | Jun 1, 2024 |
| Lead and Copper Rule | WI4190087 | Resolved | Oct 1, 2023through Oct 23, 2023 |
| Lead and Copper Rule | WI4190087 | Resolved | Oct 1, 2022through Oct 26, 2022 |
| Groundwater RuleHealth-based | WI4190087 | Resolved | Sep 17, 2022through Apr 22, 2025 |
| Public Notice | WI4190087 | Resolved | Sep 17, 2022through Feb 10, 2023 |
| Lead and Copper Rule | WI4190087 | Resolved | Jul 1, 2022through Sep 19, 2023 |
| Lead and Copper Rule | WI4190087 | Resolved | Feb 1, 2022through Sep 19, 2023 |
| Lead and Copper Rule | WI4190155 | Resolved | Feb 1, 2021through Mar 11, 2021 |
No reported violation does not prove that every contaminant was tested or absent; SDWIS measured values are incomplete and lag state records.
Solutions matcher
Your personalized water action plan
Matched to Florence ZIP 54121 using 108 PPM nearby hardness and 1 reported measurement benchmarks.
Drinking water protection
Under-Sink Reverse Osmosis System
Groundwater Rule has a measured benchmark flag or active health-based SDWIS record in this profile.
A certified multi-stage RO system targets a broader range of dissolved contaminants at the kitchen tap.
Explore under-sink filtrationAffiliate disclosure: we may earn a commission from qualifying purchases, at no added cost to you. Product matching is educational and does not replace certified water testing.
Frequently asked
Water questions for Florence
Is tap water safe in Florence?+
EPA ECHO reports 1 active health-based violation among the associated community water systems. Review the affected utility's current notice and Consumer Confidence Report.
How hard is the water?+
Nearby USGS observations produce an estimate of 108 PPM, or 6.3 grains per gallon, classified as moderately hard. This is not a household tap measurement.
Do I need a water softener?+
There is no high-hardness trigger in this profile. Confirm with a tap test before buying equipment.