Hardness
Very Hard
334 PPM · 19.5 GPG
Local water dashboard
Official source aggregationWater quality in Fort Wayne, IN 46806
A source-transparent look at local hardness, associated public water systems, EPA compliance history, and the measurements that are—and are not—available for Allen County.
No active health-based violation reported
- Primary matched system
- Fort Wayne - 3 Rivers Filtration Plant
- Source water
- Surface water + Groundwater
- County
- Allen 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
0.0026 mg/L
17% of action level
Utility match
4 systems
Serves 269,994 people system-wide
Hardness meter
How hard is the water?
Estimated local hardness
USGS hardness classification scale
334 PPM
Soft
0–59Moderate
60–120Hard
121–180Very hard
181+
0–59Moderate
60–120Hard
121–180Very hard
181+
Parts per million
334
mg/L as CaCO₃ equivalent
Grains per gallon
19.5
1 GPG ≈ 17.1 PPM
What this means at home
At 334 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
5
Nearest site
59.2 mi
Observation range
May 23, 2018–Aug 28, 2024
Estimate confidence
Low
Median of the latest qualifying hardness observation at each nearby monitoring site. Nearest monitoring location: Pipe Crk at Bunker Hill Pike Rd nr Bunker Hill, IN (Stream).USGS source documentation ↗
Regional context
Is 46806 typical?
These comparisons use other indexed ZIP estimates, not utility tap samples. They help show local context without replacing a household test.
Fort Wayne median
334 PPM
About the same16 indexed ZIP readings · Range 325–334 PPM
Indiana median
313 PPM
21 PPM higher472 indexed ZIP readings · Range 132–371 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 pass
Lead (PB90)
0.0026 mg/L
Reported Jun 30, 2026
Copper (CU90)
Not available
No numerical 90th-percentile result
Numerical coverage
1 comparable result
Missing values remain blank; absence is not treated as a pass.
Lead (90th percentile)
Measured in mg/L
Local 0.0026
EPA limit 0.015
Share of EPA benchmark
100% line = listed limit
2026Q2
- All records
- 28
- Health-based
- 1
- Active health-based
- 0
| Contaminant or rule | System | Status | Period |
|---|---|---|---|
| Radium-228 | IN5202003 | Archived | Jan 1, 2026through Mar 31, 2026 |
| Radium-226 | IN5202003 | Archived | Jan 1, 2026through Mar 31, 2026 |
| Gross Alpha, Excl. Radon and U | IN5202003 | Archived | Jan 1, 2026through Mar 31, 2026 |
| Radium-228 | IN5202010 | Archived | Jan 1, 2026through Mar 31, 2026 |
| Radium-226 | IN5202010 | Archived | Jan 1, 2026through Mar 31, 2026 |
| Gross Alpha, Excl. Radon and U | IN5202010 | Archived | Jan 1, 2026through Mar 31, 2026 |
| Revised Total Coliform Rule | IN5202020 | Resolved | Dec 1, 2025through Jan 12, 2026 |
| Consumer Confidence Rule | IN5202018 | Unaddressed | Oct 1, 2025 |
| Consumer Confidence Rule | IN5202010 | Resolved | Oct 1, 2025through Oct 23, 2025 |
| Consumer Confidence Rule | IN5202018 | Unaddressed | Jul 1, 2025 |
| Lead and Copper Rule | IN5202018 | Resolved | Jan 1, 2025through Mar 18, 2026 |
| Consumer Confidence Rule | IN5202018 | Resolved | Oct 7, 2024through Oct 17, 2024 |
| Consumer Confidence Rule | IN5202018 | Resolved | Jul 1, 2024through Aug 2, 2024 |
| Consumer Confidence Rule | IN5202003 | Resolved | Jul 1, 2024through Sep 16, 2024 |
| Consumer Confidence Rule | IN5202010 | Resolved | Jul 1, 2024through Sep 16, 2024 |
| Consumer Confidence Rule | IN5202018 | Resolved | Jul 1, 2023through Aug 3, 2023 |
| Revised Total Coliform Rule | IN5202010 | Resolved | Oct 1, 2022through Oct 31, 2022 |
| Consumer Confidence Rule | IN5202010 | Resolved | Jul 1, 2022through Oct 3, 2022 |
| Lead and Copper RuleHealth-based | IN5202020 | Resolved | Jan 1, 2022through Jul 6, 2022 |
| Lead and Copper Rule | IN5202020 | Resolved | Jan 1, 2022through Jan 6, 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 Fort Wayne ZIP 46806 using 334 PPM nearby hardness and 1 reported measurement benchmarks.
Scale protection
High-Capacity Whole House Water Softener
334 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 systemsAffiliate 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 Fort Wayne
Estimates can differ across a city because monitoring locations and associated systems differ.
Frequently asked
Water questions for Fort Wayne
Is tap water safe in Fort Wayne?+
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 334 PPM, or 19.5 grains per gallon, classified as very hard. This is not a household tap measurement.
Do I need a water softener?+
At 334 PPM, a correctly sized whole-house softener can reduce scale and hard-water spotting. It does not replace contaminant filtration.