Hardness
Very Hard
363.5 PPM · 21.3 GPG
Local water dashboard
Official source aggregationA source-transparent look at local hardness, associated public water systems, EPA compliance history, and the measurements that are—and are not—available for Lake County.
At a glance
EPA quarter 2026Q2
Hardness
Very Hard
363.5 PPM · 21.3 GPG
Compliance screen
Review needed
3 active health-based records
Lead 90th percentile
0 mg/L
0% of action level
Utility match
10 systems
Serves 39,279 people system-wide
Hardness meter
Estimated local hardness
USGS hardness classification scale
363.5 PPM
Parts per million
363.5
mg/L as CaCO₃ equivalent
Grains per gallon
21.3
1 GPG ≈ 17.1 PPM
What this means at home
At 363.5 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
70
Nearest site
23.1 mi
Observation range
Jan 13, 2016–May 27, 2026
Estimate confidence
Moderate
Median of the latest qualifying hardness observation at each nearby monitoring site. Nearest monitoring location: EUSTIS WELL NO. 2 AAE5699 (Well).USGS source documentation ↗
Regional context
These comparisons use other indexed ZIP estimates, not utility tap samples. They help show local context without replacing a household test.
Clermont median
364 PPM
About the same1 indexed ZIP readings · Range 363.5–363.5 PPM
Florida median
280 PPM
84 PPM higher602 indexed ZIP readings · Range 20–374.5 PPM
EPA benchmark screen
Available numerical results from associated SDWIS community water systems, compared with the applicable action level or federal MCL. Federal measured-value coverage is incomplete.
Lead (PB90)
0 mg/L
Reported Dec 1, 2025
Copper (CU90)
1.5 mg/L
Reported Jun 1, 2009
Numerical coverage
4 comparable results
Missing values remain blank; absence is not treated as a pass.
Measured in mg/L
Local 0
EPA limit 0.015
Measured in mg/L
Local 1.5
EPA limit 1.3
Measured in UG/L
Local 63.54
EPA limit 0.06
Measured in UG/L
Local 84.9225
EPA limit 0.08
100% line = listed limit
| Contaminant or rule | System | Status | Period |
|---|---|---|---|
| Revised Total Coliform Rule | FL3354968 | Archived | Feb 1, 2026through Feb 28, 2026 |
| E. COLI | FL3350690 | Resolved | Dec 1, 2025through Dec 31, 2025 |
| Revised Total Coliform Rule | FL3350690 | Resolved | Dec 1, 2025through Dec 31, 2025 |
| E. COLI | FL3350690 | Archived | Sep 1, 2025through Sep 30, 2025 |
| Revised Total Coliform Rule | FL3350690 | Archived | Sep 1, 2025through Sep 30, 2025 |
| E. COLI | FL3351418 | Archived | Sep 1, 2025through Sep 30, 2025 |
| E. COLI | FL3351418 | Archived | Aug 1, 2025through Aug 31, 2025 |
| Revised Total Coliform Rule | FL3351418 | Archived | Aug 1, 2025through Aug 31, 2025 |
| E. COLI | FL3351418 | Archived | Jun 1, 2025through Jun 30, 2025 |
| Revised Total Coliform Rule | FL3354106 | Archived | May 1, 2025through May 31, 2025 |
| E. COLI | FL3354106 | Archived | May 1, 2025through May 31, 2025 |
| E. COLI | FL3351418 | Archived | Apr 1, 2025through Apr 30, 2025 |
| E. COLI | FL3350690 | Archived | Mar 1, 2025through Mar 31, 2025 |
| Revised Total Coliform Rule | FL3350690 | Archived | Mar 1, 2025through Mar 31, 2025 |
| E. COLI | FL3351418 | Archived | Mar 1, 2025through Mar 31, 2025 |
| E. COLI | FL3354968 | Resolved | Feb 1, 2025through Feb 28, 2025 |
| LEAD AND COPPER RULE REVISIONSHealth-based | FL3354968 | Resolved | Feb 1, 2025through Mar 31, 2026 |
| Revised Total Coliform Rule | FL3354968 | Resolved | Feb 1, 2025through Feb 28, 2025 |
| LEAD AND COPPER RULE REVISIONS | FL3354968 | Resolved | Feb 1, 2025through Mar 31, 2026 |
| LEAD AND COPPER RULE REVISIONS | FL3351376 | Unaddressed | Feb 1, 2025 |
No reported violation does not prove that every contaminant was tested or absent; SDWIS measured values are incomplete and lag state records.
Solutions matcher
Matched to Clermont ZIP 34711 using 363.5 PPM nearby hardness and 4 reported measurement benchmarks.
Scale protection
363.5 PPM is 3× 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
Copper (90th percentile), Total Haloacetic Acids (HAA5), TTHM 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
EPA ECHO reports 3 active health-based violations among the associated community water systems. Review the affected utility's current notice and Consumer Confidence Report.
Nearby USGS observations produce an estimate of 363.5 PPM, or 21.3 grains per gallon, classified as very hard. This is not a household tap measurement.
At 363.5 PPM, a correctly sized whole-house softener can reduce scale and hard-water spotting. It does not replace contaminant filtration.