Hardness
Very Hard
316 PPM · 18.5 GPG
Local water dashboard
Official source aggregationWater quality in Alva, FL 33920
A source-transparent look at local hardness, associated public water systems, EPA compliance history, and the measurements that are—and are not—available for Lee County.
2 reported benchmark flags
- Primary matched system
- Oak Park Mobile Home Village
- Source water
- Groundwater
- County
- Lee 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
0.001 mg/L
7% of action level
Utility match
2 systems
Serves 400 people system-wide
Hardness meter
How hard is the water?
Estimated local hardness
USGS hardness classification scale
316 PPM
Soft
0–59Moderate
60–120Hard
121–180Very hard
181+
0–59Moderate
60–120Hard
121–180Very hard
181+
Parts per million
316
mg/L as CaCO₃ equivalent
Grains per gallon
18.5
1 GPG ≈ 17.1 PPM
What this means at home
At 316 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
52
Nearest site
6.7 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: LUC-24 WELL NR FT. DENAUD, FL (Well).USGS source documentation ↗
Regional context
Is 33920 typical?
These comparisons use other indexed ZIP estimates, not utility tap samples. They help show local context without replacing a household test.
Alva median
316 PPM
About the same1 indexed ZIP readings · Range 316–316 PPM
Florida median
280 PPM
36 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 pass2 fail
Lead (PB90)
0.001 mg/L
Reported Dec 1, 2025
Copper (CU90)
Not available
No numerical 90th-percentile result
Numerical coverage
3 comparable results
Missing values remain blank; absence is not treated as a pass.
Lead (90th percentile)
Measured in mg/L
Local 0.001
EPA limit 0.015
Gross Alpha, Excl. Radon and U
Measured in PCI/L
Local 42.5
EPA limit 15
Combined Uranium
Measured in PCI/L
Local 71.725
EPA limit 30
Share of EPA benchmark
100% line = listed limit
2026Q2
- All records
- 22
- Health-based
- 10
- Active health-based
- 0
| Contaminant or rule | System | Status | Period |
|---|---|---|---|
| Gross Alpha, Excl. Radon and UHealth-basedReported 42.5 PCI/L · MCL 15 | FL5360204 | Resolved | Jul 1, 2025through Sep 30, 2025 |
| Combined UraniumHealth-basedReported 71.725 PCI/L · MCL 30 | FL5360204 | Resolved | Jul 1, 2025through Sep 30, 2025 |
| E. COLI | FL5360204 | Resolved | Aug 1, 2024through Feb 10, 2025 |
| E. COLI | FL5360204 | Resolved | Aug 1, 2024through Feb 10, 2025 |
| E. COLI | FL5360204 | Resolved | Jul 1, 2024through Jul 31, 2024 |
| Gross Alpha, Excl. Radon and UHealth-basedReported 149.0625 PCI/L · MCL 15 | FL5360204 | Resolved | Jul 1, 2024through Sep 30, 2024 |
| Revised Total Coliform Rule | FL5360204 | Resolved | Jul 1, 2024through Jul 31, 2024 |
| E. COLI | FL5360204 | Resolved | Jun 1, 2024through Aug 26, 2024 |
| Total Haloacetic Acids (HAA5) | FL5364068 | Resolved | Jan 1, 2024through Dec 31, 2024 |
| TTHM | FL5364068 | Resolved | Jan 1, 2024through Dec 31, 2024 |
| Gross Alpha, Excl. Radon and UHealth-basedReported 33.9625 PCI/L · MCL 15 | FL5360204 | Resolved | Oct 1, 2023through Dec 31, 2023 |
| Combined UraniumHealth-basedReported 86.3 PCI/L · MCL 30 | FL5360204 | Resolved | Oct 1, 2023through Dec 31, 2023 |
| Gross Alpha, Excl. Radon and UHealth-basedReported 39.7333 PCI/L · MCL 15 | FL5360204 | Resolved | Jul 1, 2023through Sep 30, 2023 |
| Combined UraniumHealth-basedReported 84.55 PCI/L · MCL 30 | FL5360204 | Archived | Apr 1, 2023through Jun 30, 2023 |
| Combined UraniumHealth-basedReported 84.92 PCI/L · MCL 30 | FL5360204 | Archived | Jan 1, 2023through Mar 31, 2023 |
| E. COLI | FL5360204 | Resolved | Jul 1, 2022through Jul 19, 2022 |
| E. COLI | FL5360204 | Resolved | Jul 1, 2022through Jul 19, 2022 |
| Lead and Copper Rule | FL5360204 | Resolved | Jan 1, 2022through Apr 17, 2025 |
| Gross Alpha, Excl. Radon and UHealth-basedReported 91.5 PCI/L · MCL 15 | FL5360204 | Resolved | Jul 1, 2021through Jul 1, 2021 |
| Gross Alpha, Excl. Radon and UHealth-basedReported 91.5 PCI/L · MCL 15 | FL5360204 | Resolved | Jul 1, 2021through Sep 30, 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 Alva ZIP 33920 using 316 PPM nearby hardness and 3 reported measurement benchmarks.
Scale protection
High-Capacity Whole House Water Softener
316 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
Gross Alpha, Excl. Radon and U, Combined Uranium 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 Alva
Is tap water safe in Alva?+
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 316 PPM, or 18.5 grains per gallon, classified as very hard. This is not a household tap measurement.
Do I need a water softener?+
At 316 PPM, a correctly sized whole-house softener can reduce scale and hard-water spotting. It does not replace contaminant filtration.