Hardness
Very Hard
292 PPM · 17.1 GPG
Local water dashboard
Official source aggregationWater quality in Williamsport, IN 47993
A source-transparent look at local hardness, associated public water systems, EPA compliance history, and the measurements that are—and are not—available for Warren County.
No active health-based violation reported
- Primary matched system
- Williamsport Water Utility
- Source water
- Groundwater
- County
- Warren 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
2 systems
Serves 1,800 people system-wide
Hardness meter
How hard is the water?
Estimated local hardness
USGS hardness classification scale
292 PPM
Soft
0–59Moderate
60–120Hard
121–180Very hard
181+
0–59Moderate
60–120Hard
121–180Very hard
181+
Parts per million
292
mg/L as CaCO₃ equivalent
Grains per gallon
17.1
1 GPG ≈ 17.1 PPM
What this means at home
At 292 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
46
Nearest site
41.6 mi
Observation range
Mar 30, 2016–Sep 2, 2025
Estimate confidence
Low
Median of the latest qualifying hardness observation at each nearby monitoring site. Nearest monitoring location: 21N9E-05.1a (Well).USGS source documentation ↗
Regional context
Is 47993 typical?
These comparisons use other indexed ZIP estimates, not utility tap samples. They help show local context without replacing a household test.
Williamsport median
292 PPM
About the same1 indexed ZIP readings · Range 292–292 PPM
Indiana median
313 PPM
21 PPM lower472 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 mg/L
Reported Dec 31, 2027
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
EPA limit 0.015
Share of EPA benchmark
100% line = listed limit
2026Q2
- All records
- 25
- Health-based
- 2
- Active health-based
- 0
| Contaminant or rule | System | Status | Period |
|---|---|---|---|
| Lead and Copper Rule | IN5286002 | Unaddressed | Jan 1, 2026 |
| Consumer Confidence Rule | IN5286002 | Unaddressed | Oct 1, 2025 |
| Lead and Copper Rule | IN5286002 | Resolved | Oct 1, 2025through Oct 15, 2025 |
| Stage 1 Disinfectants and Disinfection Byproducts RuleHealth-based | IN5286002 | Resolved | Sep 5, 2025through Sep 23, 2025 |
| Consumer Confidence Rule | IN5286002 | Unaddressed | Jul 1, 2025 |
| Total Haloacetic Acids (HAA5) | IN5286002 | Archived | Jan 1, 2025through Dec 31, 2025 |
| TTHM | IN5286002 | Archived | Jan 1, 2025through Dec 31, 2025 |
| Consumer Confidence Rule | IN5286002 | Resolved | Oct 1, 2023through Aug 7, 2024 |
| Consumer Confidence Rule | IN5286002 | Resolved | Jul 1, 2023through Aug 7, 2024 |
| Stage 1 Disinfectants and Disinfection Byproducts RuleHealth-based | IN5286002 | Resolved | Feb 3, 2023through Aug 7, 2024 |
| TTHM | IN5286002 | Resolved | Jan 1, 2023through Dec 31, 2023 |
| Total Haloacetic Acids (HAA5) | IN5286002 | Resolved | Jan 1, 2023through Dec 31, 2023 |
| Lead and Copper Rule | IN5286002 | Resolved | Jan 1, 2023through Feb 13, 2023 |
| Consumer Confidence Rule | IN5286002 | Resolved | Jul 1, 2022through Nov 30, 2023 |
| Gross Alpha, Excl. Radon and U | IN5286002 | Resolved | Jan 1, 2022through Dec 31, 2022 |
| Radium-226 | IN5286002 | Resolved | Jan 1, 2022through Dec 31, 2022 |
| Radium-228 | IN5286002 | Resolved | Jan 1, 2022through Dec 31, 2022 |
| Total Haloacetic Acids (HAA5) | IN5286002 | Resolved | Jan 1, 2022through Dec 31, 2022 |
| TTHM | IN5286002 | Resolved | Jan 1, 2022through Dec 31, 2022 |
| Consumer Confidence Rule | IN5286002 | Resolved | Oct 1, 2021through Jan 7, 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 Williamsport ZIP 47993 using 292 PPM nearby hardness and 1 reported measurement benchmarks.
Scale protection
High-Capacity Whole House Water Softener
292 PPM is 2× 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.
Frequently asked
Water questions for Williamsport
Is tap water safe in Williamsport?+
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 292 PPM, or 17.1 grains per gallon, classified as very hard. This is not a household tap measurement.
Do I need a water softener?+
At 292 PPM, a correctly sized whole-house softener can reduce scale and hard-water spotting. It does not replace contaminant filtration.