Hardness
Hard
122 PPM · 7.1 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 Summit County.
At a glance
EPA quarter 2026Q2
Hardness
Hard
122 PPM · 7.1 GPG
Compliance screen
No active flag
0 active health-based records
Lead 90th percentile
0 mg/L
0% of action level
Utility match
1 system
Serves 18,394 people system-wide
Hardness meter
Estimated local hardness
USGS hardness classification scale
122 PPM
Parts per million
122
mg/L as CaCO₃ equivalent
Grains per gallon
7.1
1 GPG ≈ 17.1 PPM
What this means at home
At 122 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
45
Nearest site
23.6 mi
Observation range
Feb 1, 2016–Jun 15, 2026
Estimate confidence
Moderate
Median of the latest qualifying hardness observation at each nearby monitoring site. Nearest monitoring location: Cuyahoga River at Independence OH (Stream).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.
Tallmadge median
122 PPM
About the same1 indexed ZIP readings · Range 122–122 PPM
Ohio median
226 PPM
104 PPM lower162 indexed ZIP readings · Range 77.2–387 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, 2023
Copper (CU90)
250 mg/L
Reported Sep 30, 2005
Numerical coverage
2 comparable results
Missing values remain blank; absence is not treated as a pass.
Measured in mg/L
Local 0
EPA limit 0.015
Measured in mg/L
Local 250
EPA limit 1.3
100% line = listed limit
| Contaminant or rule | System | Status | Period |
|---|---|---|---|
| Consumer Confidence Rule | OH7704703 | Resolved | Jul 1, 2025through Aug 20, 2025 |
| Consumer Confidence Rule | OH7704703 | Resolved | Jul 1, 2023through Aug 21, 2023 |
| Consumer Confidence Rule | OH7704703 | Unaddressed | Jan 16, 2020 |
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 Tallmadge ZIP 44278 using 122 PPM nearby hardness and 2 reported measurement benchmarks.
Scale protection
122 PPM is 1× 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
Copper (90th percentile) 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 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 122 PPM, or 7.1 grains per gallon, classified as hard. This is not a household tap measurement.
At 122 PPM, a correctly sized whole-house softener can reduce scale and hard-water spotting. It does not replace contaminant filtration.