Hardness
Very Hard
353 PPM · 20.6 GPG
Local water dashboard
Official source aggregationWater quality in Altamonte Springs, FL 32701
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.
1 reported benchmark flag
- Primary matched system
- Altamonte Springs Water Dept (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 mg/L
0% of action level
Utility match
7 systems
Serves 51,000 people system-wide
Hardness meter
How hard is the water?
Estimated local hardness
USGS hardness classification scale
353 PPM
Soft
0–59Moderate
60–120Hard
121–180Very hard
181+
0–59Moderate
60–120Hard
121–180Very hard
181+
Parts per million
353
mg/L as CaCO₃ equivalent
Grains per gallon
20.6
1 GPG ≈ 17.1 PPM
What this means at home
At 353 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
12.9 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: ORANGE WELL NO. 7 AAK1369 (Well).USGS source documentation ↗
Regional context
Is 32701 typical?
These comparisons use other indexed ZIP estimates, not utility tap samples. They help show local context without replacing a household test.
Altamonte Springs median
353 PPM
About the same2 indexed ZIP readings · Range 353–353 PPM
Florida median
280 PPM
73 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 mg/L
Reported Dec 1, 2024
Copper (CU90)
1.71 mg/L
Reported Jun 30, 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
EPA limit 0.015
Copper (90th percentile)
Measured in mg/L
Local 1.71
EPA limit 1.3
Share of EPA benchmark
100% line = listed limit
2026Q2
- All records
- 7
- Health-based
- 0
- Active health-based
- 0
| Contaminant or rule | System | Status | Period |
|---|---|---|---|
| Revised Total Coliform Rule | FL3590026 | Archived | Aug 1, 2025through Aug 31, 2025 |
| Consumer Confidence Rule | FL3590039 | Unaddressed | Jul 1, 2025 |
| Consumer Confidence Rule | FL3590912 | Unaddressed | Jul 1, 2025 |
| Consumer Confidence Rule | FL3590762 | Unaddressed | Jul 1, 2025 |
| Revised Total Coliform Rule | FL3590026 | Archived | May 1, 2025through May 31, 2025 |
| Public Notice | FL3590497 | Resolved | Sep 30, 2021through Nov 26, 2021 |
| Consumer Confidence Rule | FL3590111 | Unaddressed | Jul 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 Altamonte Springs ZIP 32701 using 353 PPM nearby hardness and 2 reported measurement benchmarks.
Scale protection
High-Capacity Whole House Water Softener
353 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 Altamonte Springs
Estimates can differ across a city because monitoring locations and associated systems differ.
Frequently asked
Water questions for Altamonte Springs
Is tap water safe in Altamonte 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 353 PPM, or 20.6 grains per gallon, classified as very hard. This is not a household tap measurement.
Do I need a water softener?+
At 353 PPM, a correctly sized whole-house softener can reduce scale and hard-water spotting. It does not replace contaminant filtration.