Hardness
Very Hard
203 PPM · 11.9 GPG
Local water dashboard
Official source aggregationWater quality in Hilliard, FL 32046
A source-transparent look at local hardness, associated public water systems, EPA compliance history, and the measurements that are—and are not—available for Nassau County.
2 active health-based violations
- Primary matched system
- Hilliard Wtp
- Source water
- Groundwater
- County
- Nassau County
- Profile updated
At a glance
What the current records say
EPA quarter 2026Q2
Compliance screen
Review needed
2 active health-based records
Lead 90th percentile
5.0e-4 mg/L
3% of action level
Utility match
3 systems
Serves 3,036 people system-wide
Hardness meter
How hard is the water?
Estimated local hardness
USGS hardness classification scale
203 PPM
Soft
0–59Moderate
60–120Hard
121–180Very hard
181+
0–59Moderate
60–120Hard
121–180Very hard
181+
Parts per million
203
mg/L as CaCO₃ equivalent
Grains per gallon
11.9
1 GPG ≈ 17.1 PPM
What this means at home
At 203 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
31
Nearest site
11 mi
Observation range
Dec 6, 2016–Jan 15, 2026
Estimate confidence
Moderate
Median of the latest qualifying hardness observation at each nearby monitoring site. Nearest monitoring location: 29E012 (Well).USGS source documentation ↗
Regional context
Is 32046 typical?
These comparisons use other indexed ZIP estimates, not utility tap samples. They help show local context without replacing a household test.
Hilliard median
203 PPM
About the same1 indexed ZIP readings · Range 203–203 PPM
Florida median
280 PPM
77 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 pass
Lead (PB90)
5.0e-4 mg/L
Reported Jun 1, 2024
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 5.0e-4
EPA limit 0.015
Share of EPA benchmark
100% line = listed limit
2026Q2
- All records
- 26
- Health-based
- 2
- Active health-based
- 2
| Contaminant or rule | System | Status | Period |
|---|---|---|---|
| E. COLI | FL2454138 | Resolved | Feb 1, 2026through Feb 28, 2026 |
| Revised Total Coliform Rule | FL2454138 | Resolved | Feb 1, 2026through Feb 28, 2026 |
| Revised Total Coliform Rule | FL2451179 | Resolved | Jul 1, 2025through Oct 24, 2025 |
| Consumer Confidence Rule | FL2451179 | Resolved | Jul 1, 2025through Sep 30, 2025 |
| E. COLI | FL2451179 | Resolved | Jul 1, 2025through Oct 24, 2025 |
| Consumer Confidence Rule | FL2454138 | Resolved | Jul 1, 2025through Sep 22, 2025 |
| Consumer Confidence Rule | FL2454378 | Unaddressed | Jul 1, 2025 |
| Revised Total Coliform Rule | FL2454138 | Resolved | Apr 1, 2025through Apr 30, 2025 |
| E. COLI | FL2454138 | Resolved | Apr 1, 2025through Apr 30, 2025 |
| Revised Total Coliform Rule | FL2454378 | Resolved | Apr 1, 2025through Apr 30, 2025 |
| E. COLI | FL2454378 | Resolved | Apr 1, 2025through Apr 30, 2025 |
| LEAD AND COPPER RULE REVISIONSHealth-based | FL2454138 | Unaddressed | Feb 1, 2025 |
| LEAD AND COPPER RULE REVISIONS | FL2454138 | Unaddressed | Feb 1, 2025 |
| LEAD AND COPPER RULE REVISIONSHealth-based | FL2454378 | Unaddressed | Feb 1, 2025 |
| LEAD AND COPPER RULE REVISIONS | FL2454378 | Unaddressed | Feb 1, 2025 |
| Total Haloacetic Acids (HAA5) | FL2451179 | Archived | Jan 1, 2025through Mar 31, 2025 |
| Nitrate | FL2451179 | Resolved | Jan 1, 2025through Dec 31, 2025 |
| TTHM | FL2451179 | Archived | Jan 1, 2025through Mar 31, 2025 |
| E. COLI | FL2454138 | Resolved | Feb 1, 2024through Feb 18, 2024 |
| Revised Total Coliform Rule | FL2454138 | Resolved | Feb 1, 2024through Feb 18, 2024 |
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 Hilliard ZIP 32046 using 203 PPM nearby hardness and 1 reported measurement benchmarks.
Scale protection
High-Capacity Whole House Water Softener
203 PPM is 2× 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
LEAD AND COPPER RULE REVISIONS 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 Hilliard
Is tap water safe in Hilliard?+
EPA ECHO reports 2 active health-based violations 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 203 PPM, or 11.9 grains per gallon, classified as very hard. This is not a household tap measurement.
Do I need a water softener?+
At 203 PPM, a correctly sized whole-house softener can reduce scale and hard-water spotting. It does not replace contaminant filtration.