Hardness
Very Hard
351 PPM · 20.5 GPG
Local water dashboard
Official source aggregationWater quality in Sanford, FL 32771
A source-transparent look at local hardness, associated public water systems, EPA compliance history, and the measurements that are—and are not—available for Seminole County.
2 reported benchmark flags
- Primary matched system
- Sanford, City Of (2 Wps)
- Source water
- Groundwater
- County
- Seminole 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
0.0022 mg/L
15% of action level
Utility match
7 systems
Serves 79,715 people system-wide
Hardness meter
How hard is the water?
Estimated local hardness
USGS hardness classification scale
351 PPM
Soft
0–59Moderate
60–120Hard
121–180Very hard
181+
0–59Moderate
60–120Hard
121–180Very hard
181+
Parts per million
351
mg/L as CaCO₃ equivalent
Grains per gallon
20.5
1 GPG ≈ 17.1 PPM
What this means at home
At 351 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
18.3 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: DELAND WELL NO. 7A (AAH1836) (Well).USGS source documentation ↗
Regional context
Is 32771 typical?
These comparisons use other indexed ZIP estimates, not utility tap samples. They help show local context without replacing a household test.
Sanford median
352 PPM
About the same2 indexed ZIP readings · Range 351–353 PPM
Florida median
280 PPM
71 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)
0.0022 mg/L
Reported Dec 1, 2024
Copper (CU90)
1.79 mg/L
Reported Dec 31, 1995
Numerical coverage
3 comparable results
Missing values remain blank; absence is not treated as a pass.
Lead (90th percentile)
Measured in mg/L
Local 0.0022
EPA limit 0.015
Copper (90th percentile)
Measured in mg/L
Local 1.79
EPA limit 1.3
TTHM
Measured in UG/L
Local 87.4733
EPA limit 0.08
Share of EPA benchmark
100% line = listed limit
2026Q2
- All records
- 30
- Health-based
- 3
- Active health-based
- 0
| Contaminant or rule | System | Status | Period |
|---|---|---|---|
| E. COLI | FL3590205 | Archived | Sep 1, 2025through Sep 30, 2025 |
| Revised Total Coliform Rule | FL3590205 | Archived | Sep 1, 2025through Sep 30, 2025 |
| E. COLI | FL3590205 | Archived | Aug 1, 2025through Aug 31, 2025 |
| E. COLI | FL3590205 | Archived | Jul 1, 2025through Jul 31, 2025 |
| Consumer Confidence Rule | FL3591061 | Unaddressed | Jul 1, 2025 |
| Consumer Confidence Rule | FL3590993 | Unaddressed | Jul 1, 2025 |
| Revised Total Coliform Rule | FL3590205 | Archived | May 1, 2025through May 31, 2025 |
| E. COLI | FL3590205 | Archived | May 1, 2025through May 31, 2025 |
| E. COLI | FL3590205 | Archived | Mar 1, 2025through Mar 31, 2025 |
| E. COLI | FL3590205 | Unaddressed | Mar 1, 2025 |
| Revised Total Coliform Rule | FL3590205 | Archived | Feb 1, 2025through Feb 28, 2025 |
| E. COLI | FL3590205 | Archived | Feb 1, 2025through Feb 28, 2025 |
| E. COLI | FL3590338 | Archived | Jun 1, 2024through Jun 30, 2024 |
| Revised Total Coliform Rule | FL3590338 | Archived | Jun 1, 2024through Jun 30, 2024 |
| TTHMHealth-basedReported 87.4733 UG/L · MCL 0.08 | FL3594107 | Resolved | Jul 1, 2023through Sep 30, 2023 |
| TTHMHealth-basedReported 86.9475 UG/L · MCL 0.08 | FL3594107 | Resolved | Apr 1, 2023through Jun 30, 2023 |
| TTHMHealth-basedReported 85.5425 UG/L · MCL 0.08 | FL3594107 | Resolved | Jan 1, 2023through Mar 31, 2023 |
| Total Haloacetic Acids (HAA5) | FL3590338 | Archived | Jan 1, 2023through Dec 31, 2024 |
| TTHM | FL3590338 | Archived | Jan 1, 2023through Dec 31, 2024 |
| Revised Total Coliform Rule | FL3590205 | Resolved | Dec 1, 2022through Dec 31, 2022 |
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 Sanford ZIP 32771 using 351 PPM nearby hardness and 3 reported measurement benchmarks.
Scale protection
High-Capacity Whole House Water Softener
351 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), 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.
Nearby indexed reports
Compare ZIPs in Sanford
Estimates can differ across a city because monitoring locations and associated systems differ.
Frequently asked
Water questions for Sanford
Is tap water safe in Sanford?+
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 351 PPM, or 20.5 grains per gallon, classified as very hard. This is not a household tap measurement.
Do I need a water softener?+
At 351 PPM, a correctly sized whole-house softener can reduce scale and hard-water spotting. It does not replace contaminant filtration.