Hardness
Very Hard
291 PPM · 17 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 Champaign County.
At a glance
EPA quarter 2026Q2
Hardness
Very Hard
291 PPM · 17 GPG
Compliance screen
No active flag
0 active health-based records
Lead 90th percentile
0 mg/L
0% of action level
Utility match
8 systems
Serves 13,000 people system-wide
Hardness meter
Estimated local hardness
USGS hardness classification scale
291 PPM
Parts per million
291
mg/L as CaCO₃ equivalent
Grains per gallon
17
1 GPG ≈ 17.1 PPM
What this means at home
At 291 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
37
Nearest site
12.3 mi
Observation range
Jul 17, 2017–Aug 12, 2025
Estimate confidence
Moderate
Median of the latest qualifying hardness observation at each nearby monitoring site. Nearest monitoring location: 21N9E-05.1a (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.
Urbana median
298 PPM
7 PPM lower2 indexed ZIP readings · Range 291–304 PPM
Illinois median
285 PPM
6 PPM higher1065 indexed ZIP readings · Range 115–408 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, 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.
Measured in mg/L
Local 0
EPA limit 0.015
100% line = listed limit
| Contaminant or rule | System | Status | Period |
|---|---|---|---|
| Lead and Copper Rule | IL0195350 | Unaddressed | Oct 1, 2025 |
| LEAD AND COPPER RULE REVISIONS | IL0195500 | Unaddressed | Jul 2, 2025 |
| Consumer Confidence Rule | IL0195500 | Unaddressed | Jul 1, 2025 |
| Public Notice | IL0195310 | Resolved | Feb 8, 2024through Jun 5, 2024 |
| TTHM | IL0195390 | Resolved | Jan 1, 2024through Mar 31, 2024 |
| Total Haloacetic Acids (HAA5) | IL0195390 | Resolved | Jan 1, 2024through Mar 31, 2024 |
| Consumer Confidence Rule | IL0195380 | Resolved | Jul 1, 2023through Jun 26, 2024 |
| Lead and Copper Rule | IL0195310 | Resolved | Jan 1, 2023through Oct 6, 2023 |
| Total Haloacetic Acids (HAA5) | IL0195390 | Resolved | Jul 1, 2022through Sep 30, 2022 |
| TTHM | IL0195390 | Resolved | Jul 1, 2022through Sep 30, 2022 |
| Lead and Copper Rule | IL0195350 | Resolved | Dec 30, 2021through Jan 25, 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
Matched to Urbana ZIP 61802 using 291 PPM nearby hardness and 1 reported measurement benchmarks.
Scale protection
291 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.
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 291 PPM, or 17 grains per gallon, classified as very hard. This is not a household tap measurement.
At 291 PPM, a correctly sized whole-house softener can reduce scale and hard-water spotting. It does not replace contaminant filtration.