Hardness
Hard
160 PPM · 9.4 GPG
Local water dashboard
Official source aggregationWater quality in Madison, FL 32340
A source-transparent look at local hardness, associated public water systems, EPA compliance history, and the measurements that are—and are not—available for Madison County.
1 active health-based violation
- Primary matched system
- Madison Water Department
- Source water
- Groundwater
- County
- Madison 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
0.0021 mg/L
14% of action level
Utility match
2 systems
Serves 7,350 people system-wide
Hardness meter
How hard is the water?
Estimated local hardness
USGS hardness classification scale
160 PPM
Soft
0–59Moderate
60–120Hard
121–180Very hard
181+
0–59Moderate
60–120Hard
121–180Very hard
181+
Parts per million
160
mg/L as CaCO₃ equivalent
Grains per gallon
9.4
1 GPG ≈ 17.1 PPM
What this means at home
At 160 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
15
Nearest site
25.9 mi
Observation range
Sep 14, 2023–Mar 25, 2026
Estimate confidence
Low
Median of the latest qualifying hardness observation at each nearby monitoring site. Nearest monitoring location: 18E017 (Well).USGS source documentation ↗
Regional context
Is 32340 typical?
These comparisons use other indexed ZIP estimates, not utility tap samples. They help show local context without replacing a household test.
Madison median
160 PPM
About the same1 indexed ZIP readings · Range 160–160 PPM
Florida median
280 PPM
120 PPM lower602 indexed ZIP readings · Range 20–374.5 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 pass1 fail
Lead (PB90)
0.0021 mg/L
Reported Dec 1, 2024
Copper (CU90)
Not available
No numerical 90th-percentile result
Numerical coverage
2 comparable results
Missing values remain blank; absence is not treated as a pass.
Lead (90th percentile)
Measured in mg/L
Local 0.0021
EPA limit 0.015
Thallium, Total
Measured in MG/L
Local 0.0082
EPA limit 0.002
Share of EPA benchmark
100% line = listed limit
2026Q2
- All records
- 41
- Health-based
- 4
- Active health-based
- 1
| Contaminant or rule | System | Status | Period |
|---|---|---|---|
| E. COLI | FL2400205 | Resolved | Aug 1, 2025through Aug 31, 2025 |
| Revised Total Coliform Rule | FL2400205 | Resolved | Aug 1, 2025through Aug 31, 2025 |
| E. COLI | FL2400185 | Resolved | Aug 1, 2025through Aug 31, 2025 |
| Revised Total Coliform Rule | FL2400185 | Resolved | Aug 1, 2025through Aug 31, 2025 |
| Consumer Confidence Rule | FL2400205 | Resolved | Jul 1, 2025through Nov 13, 2025 |
| Lead and Copper Rule | FL2400185 | Unaddressed | Jul 1, 2025 |
| LEAD AND COPPER RULE REVISIONS | FL2400205 | Unaddressed | Feb 1, 2025 |
| LEAD AND COPPER RULE REVISIONSHealth-based | FL2400205 | Unaddressed | Feb 1, 2025 |
| Lead and Copper Rule | FL2400185 | Unaddressed | Jan 1, 2025 |
| Lead and Copper Rule | FL2400185 | Unaddressed | Jul 1, 2024 |
| Revised Total Coliform Rule | FL2400205 | Unaddressed | Apr 1, 2024 |
| E. COLI | FL2400205 | Unaddressed | Apr 1, 2024 |
| Total Haloacetic Acids (HAA5) | FL2400205 | Archived | Jan 1, 2024through Dec 31, 2024 |
| TTHM | FL2400205 | Archived | Jan 1, 2024through Dec 31, 2024 |
| Total Haloacetic Acids (HAA5) | FL2400185 | Archived | Jan 1, 2024through Dec 31, 2024 |
| Lead and Copper Rule | FL2400185 | Resolved | Jan 1, 2024through Jun 26, 2024 |
| Nitrate | FL2400185 | Resolved | Jan 1, 2024through Dec 31, 2024 |
| TTHM | FL2400185 | Archived | Jan 1, 2024through Dec 31, 2024 |
| Consumer Confidence Rule | FL2400205 | Resolved | Jul 1, 2023through Aug 27, 2024 |
| Revised Total Coliform Rule | FL2400205 | Resolved | Feb 1, 2023through Feb 28, 2023 |
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 Madison ZIP 32340 using 160 PPM nearby hardness and 2 reported measurement benchmarks.
Scale protection
High-Capacity Whole House Water Softener
160 PPM is 1× the high-hardness trigger used by this matcher.
Designed to reduce scale on fixtures, water heaters, glassware, and plumbing throughout the home.
Compare whole-house systemsDrinking water protection
Under-Sink Reverse Osmosis System
Thallium, Total, LEAD AND COPPER RULE REVISIONS have 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 Madison
Is tap water safe in Madison?+
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 160 PPM, or 9.4 grains per gallon, classified as hard. This is not a household tap measurement.
Do I need a water softener?+
At 160 PPM, a correctly sized whole-house softener can reduce scale and hard-water spotting. It does not replace contaminant filtration.