Hardness
Very Hard
367 PPM · 21.5 GPG
Local water dashboard
Official source aggregationWater quality in Dundee, FL 33838
A source-transparent look at local hardness, associated public water systems, EPA compliance history, and the measurements that are—and are not—available for Polk County.
1 reported benchmark flag
- Primary matched system
- Dundee, Town Of
- Source water
- Groundwater
- County
- Polk 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
0.0067 mg/L
45% of action level
Utility match
2 systems
Serves 3,824 people system-wide
Hardness meter
How hard is the water?
Estimated local hardness
USGS hardness classification scale
367 PPM
Soft
0–59Moderate
60–120Hard
121–180Very hard
181+
0–59Moderate
60–120Hard
121–180Very hard
181+
Parts per million
367
mg/L as CaCO₃ equivalent
Grains per gallon
21.5
1 GPG ≈ 17.1 PPM
What this means at home
At 367 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
73
Nearest site
9.9 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: LK WALES 1861 FT LFA DZMW-1 WELL AT LAKE WALES,FL (Well).USGS source documentation ↗
Regional context
Is 33838 typical?
These comparisons use other indexed ZIP estimates, not utility tap samples. They help show local context without replacing a household test.
Dundee median
367 PPM
About the same1 indexed ZIP readings · Range 367–367 PPM
Florida median
280 PPM
87 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)
0.0067 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 0.0067
EPA limit 0.015
ETHYLENE DIBROMIDE
Measured in UG/L
Local 0.0651
EPA limit 5.0e-5
Share of EPA benchmark
100% line = listed limit
2026Q2
- All records
- 41
- Health-based
- 3
- Active health-based
- 0
| Contaminant or rule | System | Status | Period |
|---|---|---|---|
| E. COLI | FL6530485 | Archived | Mar 1, 2026through Mar 31, 2026 |
| Revised Total Coliform Rule | FL6530485 | Archived | Nov 1, 2025through Nov 30, 2025 |
| E. COLI | FL6530485 | Archived | Nov 1, 2025through Nov 30, 2025 |
| E. COLI | FL6530485 | Archived | Sep 1, 2025through Sep 30, 2025 |
| E. COLI | FL6530485 | Resolved | Aug 1, 2024through Aug 31, 2024 |
| E. COLI | FL6530485 | Resolved | Jul 1, 2024through Jul 31, 2024 |
| Revised Total Coliform Rule | FL6530623 | Resolved | Jul 1, 2024through Jul 31, 2024 |
| E. COLI | FL6530623 | Resolved | Jul 1, 2024through Jul 31, 2024 |
| E. COLI | FL6530485 | Resolved | Jun 1, 2024through Jun 30, 2024 |
| Revised Total Coliform Rule | FL6530623 | Resolved | Jun 1, 2024through Jun 30, 2024 |
| E. COLI | FL6530623 | Resolved | Jun 1, 2024through Jun 30, 2024 |
| Revised Total Coliform Rule | FL6530485 | Resolved | May 1, 2024through May 31, 2024 |
| E. COLI | FL6530485 | Resolved | May 1, 2024through May 31, 2024 |
| E. COLI | FL6530485 | Resolved | Apr 1, 2024through Apr 30, 2024 |
| E. COLI | FL6530623 | Resolved | Apr 1, 2024through Apr 30, 2024 |
| Revised Total Coliform Rule | FL6530623 | Resolved | Apr 1, 2024through Apr 30, 2024 |
| ETHYLENE DIBROMIDEHealth-basedReported 0.0651 UG/L · MCL 5.0e-5 | FL6530485 | Resolved | Jan 1, 2024through Mar 31, 2024 |
| E. COLI | FL6530623 | Resolved | Jan 1, 2024through Jan 31, 2024 |
| Revised Total Coliform Rule | FL6530623 | Resolved | Jan 1, 2024through Jan 31, 2024 |
| E. COLI | FL6530485 | Resolved | Dec 1, 2023through Dec 31, 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 Dundee ZIP 33838 using 367 PPM nearby hardness and 2 reported measurement benchmarks.
Scale protection
High-Capacity Whole House Water Softener
367 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
ETHYLENE DIBROMIDE 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 Dundee
Is tap water safe in Dundee?+
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 367 PPM, or 21.5 grains per gallon, classified as very hard. This is not a household tap measurement.
Do I need a water softener?+
At 367 PPM, a correctly sized whole-house softener can reduce scale and hard-water spotting. It does not replace contaminant filtration.