Hardness
Very Hard
307 PPM · 18 GPG
Local water dashboard
Official source aggregationA source-transparent look at local hardness, associated public water systems, EPA compliance history, and the measurements that are—and are not—available for Tippecanoe County.
At a glance
EPA quarter 2026Q2
Hardness
Very Hard
307 PPM · 18 GPG
Compliance screen
Review needed
1 active health-based record
Lead 90th percentile
0 mg/L
0% of action level
Utility match
1 system
Serves 1,940 people system-wide
Hardness meter
Estimated local hardness
USGS hardness classification scale
307 PPM
Parts per million
307
mg/L as CaCO₃ equivalent
Grains per gallon
18
1 GPG ≈ 17.1 PPM
What this means at home
At 307 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
41
Nearest site
34.5 mi
Observation range
Mar 30, 2016–May 13, 2026
Estimate confidence
Low
Median of the latest qualifying hardness observation at each nearby monitoring site. Nearest monitoring location: 29N7W-31.1f (Well).USGS source documentation ↗
Regional context
These comparisons use other indexed ZIP estimates, not utility tap samples. They help show local context without replacing a household test.
Battle Ground median
307 PPM
About the same1 indexed ZIP readings · Range 307–307 PPM
Indiana median
313 PPM
6 PPM lower472 indexed ZIP readings · Range 132–371 PPM
EPA benchmark screen
Available numerical results from associated SDWIS community water systems, compared with the applicable action level or federal MCL. Federal measured-value coverage is incomplete.
Lead (PB90)
0 mg/L
Reported Dec 31, 2024
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.
Measured in mg/L
Local 0
EPA limit 0.015
100% line = listed limit
| Contaminant or rule | System | Status | Period |
|---|---|---|---|
| Revised Total Coliform Rule | IN5279002 | Resolved | Sep 1, 2025through Nov 4, 2025 |
| Consumer Confidence Rule | IN5279002 | Resolved | Jul 1, 2025through Dec 4, 2025 |
| Consumer Confidence Rule | IN5279002 | Resolved | Jul 1, 2025through Dec 4, 2025 |
| Groundwater RuleHealth-based | IN5279002 | Unaddressed | Feb 15, 2024 |
| Groundwater RuleHealth-based | IN5279002 | Resolved | Feb 15, 2024through Feb 27, 2024 |
No reported violation does not prove that every contaminant was tested or absent; SDWIS measured values are incomplete and lag state records.
Solutions matcher
Matched to Battle Ground ZIP 47920 using 307 PPM nearby hardness and 1 reported measurement benchmarks.
Scale protection
307 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
Groundwater Rule 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
EPA ECHO reports 1 active health-based violation among the associated community water systems. Review the affected utility's current notice and Consumer Confidence Report.
Nearby USGS observations produce an estimate of 307 PPM, or 18 grains per gallon, classified as very hard. This is not a household tap measurement.
At 307 PPM, a correctly sized whole-house softener can reduce scale and hard-water spotting. It does not replace contaminant filtration.