Hardness
Very Hard
394 PPM · 23 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 Midland County.
At a glance
EPA quarter 2026Q2
Hardness
Very Hard
394 PPM · 23 GPG
Compliance screen
No active flag
0 active health-based records
Lead 90th percentile
0.0025 mg/L
17% of action level
Utility match
1 system
Serves 42,547 people system-wide
Hardness meter
Estimated local hardness
USGS hardness classification scale
394 PPM
Parts per million
394
mg/L as CaCO₃ equivalent
Grains per gallon
23
1 GPG ≈ 17.1 PPM
What this means at home
At 394 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
13
Nearest site
32.9 mi
Observation range
Jun 28, 2016–Sep 13, 2023
Estimate confidence
Low
Median of the latest qualifying hardness observation at each nearby monitoring site. Nearest monitoring location: CLARE 17-05 PAS-01 (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.
Midland median
397 PPM
About the same2 indexed ZIP readings · Range 394–400.5 PPM
Michigan median
283 PPM
111 PPM higher504 indexed ZIP readings · Range 41.3–459.5 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)
0.0025 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 0.0025
EPA limit 0.015
100% line = listed limit
No violation record was returned for the associated systems in the imported lookback window beginning Jan 1, 2021.
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 Midland ZIP 48642 using 394 PPM nearby hardness and 1 reported measurement benchmarks.
Scale protection
394 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
Estimates can differ across a city because monitoring locations and associated systems differ.
Frequently asked
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.
Nearby USGS observations produce an estimate of 394 PPM, or 23 grains per gallon, classified as very hard. This is not a household tap measurement.
At 394 PPM, a correctly sized whole-house softener can reduce scale and hard-water spotting. It does not replace contaminant filtration.