Hardness
Very Hard
302.5 PPM · 17.7 GPG
Local water dashboard
Official source aggregationWater quality in Milford, IN 46542
A source-transparent look at local hardness, associated public water systems, EPA compliance history, and the measurements that are—and are not—available for Kosciusko County.
3 active health-based violations
- Primary matched system
- Milford Water Department
- Source water
- Groundwater
- County
- Kosciusko County
- Profile updated
At a glance
What the current records say
EPA quarter 2026Q2
Compliance screen
Review needed
3 active health-based records
Lead 90th percentile
1.3e-4 mg/L
1% of action level
Utility match
2 systems
Serves 1,556 people system-wide
Hardness meter
How hard is the water?
Estimated local hardness
USGS hardness classification scale
302.5 PPM
Soft
0–59Moderate
60–120Hard
121–180Very hard
181+
0–59Moderate
60–120Hard
121–180Very hard
181+
Parts per million
302.5
mg/L as CaCO₃ equivalent
Grains per gallon
17.7
1 GPG ≈ 17.1 PPM
What this means at home
At 302.5 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
30
Nearest site
31.6 mi
Observation range
Jun 20, 2016–May 13, 2026
Estimate confidence
Low
Median of the latest qualifying hardness observation at each nearby monitoring site. Nearest monitoring location: Shavehead Lake Fen piezometer 2b- Cass County, MI (Well).USGS source documentation ↗
Regional context
Is 46542 typical?
These comparisons use other indexed ZIP estimates, not utility tap samples. They help show local context without replacing a household test.
Milford median
303 PPM
About the same1 indexed ZIP readings · Range 302.5–302.5 PPM
Indiana median
313 PPM
10 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)
1.3e-4 mg/L
Reported Dec 31, 2025
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 1.3e-4
EPA limit 0.015
Share of EPA benchmark
100% line = listed limit
2026Q2
- All records
- 76
- Health-based
- 3
- Active health-based
- 3
| Contaminant or rule | System | Status | Period |
|---|---|---|---|
| Lead and Copper Rule | IN5243031 | Unaddressed | Jan 1, 2026 |
| Groundwater RuleHealth-based | IN5243031 | Unaddressed | Nov 23, 2025 |
| Groundwater RuleHealth-based | IN5243031 | Unaddressed | Nov 23, 2025 |
| Groundwater RuleHealth-based | IN5243031 | Unaddressed | Nov 23, 2025 |
| Consumer Confidence Rule | IN5243031 | Resolved | Oct 1, 2025through Jan 2, 2026 |
| Revised Total Coliform Rule | IN5243031 | Resolved | Oct 1, 2025through Oct 31, 2025 |
| Consumer Confidence Rule | IN5243031 | Resolved | Jul 1, 2025through Jan 2, 2026 |
| Revised Total Coliform Rule | IN5243031 | Resolved | Feb 1, 2025through Feb 28, 2025 |
| Endrin | IN5243031 | Resolved | Jan 1, 2025through Dec 31, 2025 |
| BHC-GAMMA | IN5243031 | Resolved | Jan 1, 2025through Dec 31, 2025 |
| Diquat | IN5243031 | Resolved | Jan 1, 2025through Dec 31, 2025 |
| Endothall | IN5243031 | Resolved | Jan 1, 2025through Dec 31, 2025 |
| Glyphosate | IN5243031 | Resolved | Jan 1, 2025through Dec 31, 2025 |
| Carbofuran | IN5243031 | Resolved | Jan 1, 2025through Dec 31, 2025 |
| LASSO | IN5243031 | Resolved | Jan 1, 2025through Dec 31, 2025 |
| Heptachlor | IN5243031 | Resolved | Jan 1, 2025through Dec 31, 2025 |
| Heptachlor epoxide | IN5243031 | Resolved | Jan 1, 2025through Dec 31, 2025 |
| 2,4,5-TP | IN5243031 | Resolved | Jan 1, 2025through Dec 31, 2025 |
| HEXACHLOROBENZENE | IN5243031 | Resolved | Jan 1, 2025through Dec 31, 2025 |
| Benzo(a)pyrene | IN5243031 | Resolved | Jan 1, 2025through Dec 31, 2025 |
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 Milford ZIP 46542 using 302.5 PPM nearby hardness and 1 reported measurement benchmarks.
Scale protection
High-Capacity Whole House Water Softener
302.5 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
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
Water questions for Milford
Is tap water safe in Milford?+
EPA ECHO reports 3 active health-based violations among the associated community water systems. Review the affected utility's current notice and Consumer Confidence Report.
How hard is the water?+
Nearby USGS observations produce an estimate of 302.5 PPM, or 17.7 grains per gallon, classified as very hard. This is not a household tap measurement.
Do I need a water softener?+
At 302.5 PPM, a correctly sized whole-house softener can reduce scale and hard-water spotting. It does not replace contaminant filtration.