Hardness
Hard
146 PPM · 8.5 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 Cook County.
At a glance
EPA quarter 2026Q2
Hardness
Hard
146 PPM · 8.5 GPG
Compliance screen
No active flag
0 active health-based records
Lead 90th percentile
0.0032 mg/L
21% of action level
Utility match
1 system
Serves 446 people system-wide
Hardness meter
Estimated local hardness
USGS hardness classification scale
146 PPM
Parts per million
146
mg/L as CaCO₃ equivalent
Grains per gallon
8.5
1 GPG ≈ 17.1 PPM
What this means at home
At 146 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
34
Nearest site
5.5 mi
Observation range
Jan 25, 2021–Mar 25, 2026
Estimate confidence
Moderate
Median of the latest qualifying hardness observation at each nearby monitoring site. Nearest monitoring location: 19G002 (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.
Cecil median
146 PPM
About the same1 indexed ZIP readings · Range 146–146 PPM
Georgia median
40 PPM
106 PPM higher469 indexed ZIP readings · Range 3–207 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)
0.0032 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 0.0032
EPA limit 0.015
100% line = listed limit
| Contaminant or rule | System | Status | Period |
|---|---|---|---|
| LEAD AND COPPER RULE REVISIONS | GA0750001 | Resolved | Jul 2, 2025through Jan 6, 2026 |
| LEAD AND COPPER RULE REVISIONS | GA0750001 | Resolved | Oct 17, 2024through Jun 5, 2025 |
| Consumer Confidence Rule | GA0750001 | Unaddressed | Oct 1, 2023 |
| Lead and Copper Rule | GA0750001 | Resolved | Oct 1, 2021through Aug 4, 2022 |
| Consumer Confidence Rule | GA0750001 | Resolved | Jul 1, 2021through Nov 10, 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 Cecil ZIP 31627 using 146 PPM nearby hardness and 1 reported measurement benchmarks.
Scale protection
146 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 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.
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 146 PPM, or 8.5 grains per gallon, classified as hard. This is not a household tap measurement.
At 146 PPM, a correctly sized whole-house softener can reduce scale and hard-water spotting. It does not replace contaminant filtration.