Hardness
Very Hard
319 PPM · 18.7 GPG
Local water dashboard
Official source aggregationWater quality in Bonita Springs, FL 34110
A source-transparent look at local hardness, associated public water systems, EPA compliance history, and the measurements that are—and are not—available for Collier County.
1 reported benchmark flag
- Primary matched system
- Bonita Springs Utilities
- Source water
- Groundwater
- County
- Collier County
- Profile updated
At a glance
What the current records say
EPA quarter 2026Q2
Compliance screen
No active flag
0 active health-based records
Lead 90th percentile
0.005 mg/L
33% of action level
Utility match
2 systems
Serves 76,033 people system-wide
Hardness meter
How hard is the water?
Estimated local hardness
USGS hardness classification scale
319 PPM
Soft
0–59Moderate
60–120Hard
121–180Very hard
181+
0–59Moderate
60–120Hard
121–180Very hard
181+
Parts per million
319
mg/L as CaCO₃ equivalent
Grains per gallon
18.7
1 GPG ≈ 17.1 PPM
What this means at home
At 319 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
42
Nearest site
7.3 mi
Observation range
Apr 1, 2019–Jan 28, 2026
Estimate confidence
Moderate
Median of the latest qualifying hardness observation at each nearby monitoring site. Nearest monitoring location: FL5110198 Naples SA Well CR311 AAH0911 (Well).USGS source documentation ↗
Regional context
Is 34110 typical?
These comparisons use other indexed ZIP estimates, not utility tap samples. They help show local context without replacing a household test.
Bonita Springs median
319 PPM
About the same3 indexed ZIP readings · Range 319–319 PPM
Florida median
280 PPM
39 PPM higher602 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)
0.005 mg/L
Reported Dec 1, 2025
Copper (CU90)
1.8 mg/L
Reported Dec 31, 1997
Numerical coverage
2 comparable results
Missing values remain blank; absence is not treated as a pass.
Lead (90th percentile)
Measured in mg/L
Local 0.005
EPA limit 0.015
Copper (90th percentile)
Measured in mg/L
Local 1.8
EPA limit 1.3
Share of EPA benchmark
100% line = listed limit
2026Q2
- All records
- 11
- Health-based
- 1
- Active health-based
- 0
| Contaminant or rule | System | Status | Period |
|---|---|---|---|
| Nitrate | FL5360048 | Resolved | Jan 1, 2025through Dec 31, 2025 |
| Lead and Copper Rule | FL5360048 | Resolved | Jan 1, 2024through Aug 20, 2024 |
| TTHM | FL5360048 | Archived | Jan 1, 2024through Dec 31, 2024 |
| E. COLI | FL5360048 | Resolved | Jan 1, 2024through Feb 17, 2024 |
| Total Haloacetic Acids (HAA5) | FL5360048 | Archived | Jan 1, 2024through Dec 31, 2024 |
| E. COLI | FL5360048 | Resolved | Sep 1, 2023through Sep 30, 2023 |
| Revised Total Coliform RuleHealth-based | FL5360048 | Resolved | Sep 1, 2023through Sep 30, 2023 |
| Revised Total Coliform Rule | FL5360025 | Resolved | Jul 1, 2023through Jul 31, 2023 |
| E. COLI | FL5360048 | Archived | Aug 1, 2022through Aug 31, 2022 |
| Revised Total Coliform Rule | FL5360048 | Archived | Aug 1, 2022through Aug 31, 2022 |
| Lead and Copper Rule | FL5360025 | Unaddressed | Jan 1, 2018 |
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 Bonita Springs ZIP 34110 using 319 PPM nearby hardness and 2 reported measurement benchmarks.
Scale protection
High-Capacity Whole House Water Softener
319 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
Under-Sink Reverse Osmosis System
Copper (90th percentile) 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.
Nearby indexed reports
Compare ZIPs in Bonita Springs
Estimates can differ across a city because monitoring locations and associated systems differ.
Frequently asked
Water questions for Bonita Springs
Is tap water safe in Bonita Springs?+
EPA ECHO shows no active health-based violation for the associated systems in this reporting snapshot. This does not prove every contaminant is absent; federal records can lag and household plumbing can change tap conditions.
How hard is the water?+
Nearby USGS observations produce an estimate of 319 PPM, or 18.7 grains per gallon, classified as very hard. This is not a household tap measurement.
Do I need a water softener?+
At 319 PPM, a correctly sized whole-house softener can reduce scale and hard-water spotting. It does not replace contaminant filtration.