Hardness
Very Hard
309 PPM · 18.1 GPG
Local water dashboard
Official source aggregationWater quality in Secor, IL 61771
A source-transparent look at local hardness, associated public water systems, EPA compliance history, and the measurements that are—and are not—available for Woodford County.
1 active health-based violation
- Primary matched system
- Secor
- Source water
- Groundwater
- County
- Woodford County
- Profile updated
At a glance
What the current records say
EPA quarter 2026Q2
Compliance screen
Review needed
1 active health-based record
Lead 90th percentile
0.0012 mg/L
8% of action level
Utility match
2 systems
Serves 351 people system-wide
Hardness meter
How hard is the water?
Estimated local hardness
USGS hardness classification scale
309 PPM
Soft
0–59Moderate
60–120Hard
121–180Very hard
181+
0–59Moderate
60–120Hard
121–180Very hard
181+
Parts per million
309
mg/L as CaCO₃ equivalent
Grains per gallon
18.1
1 GPG ≈ 17.1 PPM
What this means at home
At 309 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
41
Nearest site
20.3 mi
Observation range
May 22, 2017–Jul 30, 2025
Estimate confidence
Moderate
Median of the latest qualifying hardness observation at each nearby monitoring site. Nearest monitoring location: 29N 1E- 5.5e1 (Well).USGS source documentation ↗
Regional context
Is 61771 typical?
These comparisons use other indexed ZIP estimates, not utility tap samples. They help show local context without replacing a household test.
Secor median
309 PPM
About the same1 indexed ZIP readings · Range 309–309 PPM
Illinois median
285 PPM
24 PPM higher1065 indexed ZIP readings · Range 115–408 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 pass2 fail
Lead (PB90)
0.0012 mg/L
Reported Dec 31, 2025
Copper (CU90)
2.05 mg/L
Reported Dec 31, 2007
Numerical coverage
3 comparable results
Missing values remain blank; absence is not treated as a pass.
Lead (90th percentile)
Measured in mg/L
Local 0.0012
EPA limit 0.015
Copper (90th percentile)
Measured in mg/L
Local 2.05
EPA limit 1.3
Arsenic
Measured in MG/L
Local 0.014
EPA limit 0.01
Share of EPA benchmark
100% line = listed limit
2026Q2
- All records
- 27
- Health-based
- 12
- Active health-based
- 1
| Contaminant or rule | System | Status | Period |
|---|---|---|---|
| Public Notice | IL2030600 | Unaddressed | Jan 16, 2026 |
| ArsenicHealth-basedReported 0.014 MG/L · MCL 0.01 | IL2030600 | Archived | Jan 1, 2026through Mar 31, 2026 |
| ArsenicHealth-basedReported 11.55 UG/L · MCL 0.01 | IL2030600 | Archived | Oct 1, 2025through Dec 31, 2025 |
| Lead and Copper Rule | IL2035165 | Resolved | Oct 1, 2025through Sep 12, 2022 |
| Public Notice | IL2030600 | Unaddressed | Sep 28, 2025 |
| LEAD AND COPPER RULE REVISIONS | IL2030600 | Unaddressed | Jul 2, 2025 |
| ArsenicHealth-basedReported 15 UG/L · MCL 0.01 | IL2030600 | Archived | Jul 1, 2025through Sep 30, 2025 |
| Consumer Confidence Rule | IL2030600 | Unaddressed | Jul 1, 2025 |
| Chlorine | IL2035165 | Resolved | Jul 1, 2025through Jul 31, 2025 |
| Revised Total Coliform Rule | IL2035165 | Resolved | Jul 1, 2025through Jul 31, 2025 |
| Consumer Confidence Rule | IL2035165 | Unaddressed | Jul 1, 2025 |
| ArsenicHealth-basedReported 0.011 MG/L · MCL 0.01 | IL2030600 | Archived | Jan 1, 2025through Mar 31, 2025 |
| TTHM | IL2035165 | Archived | Jan 1, 2025through Dec 31, 2025 |
| Total Haloacetic Acids (HAA5) | IL2035165 | Archived | Jan 1, 2025through Dec 31, 2025 |
| LEAD AND COPPER RULE REVISIONSHealth-based | IL2030600 | Unaddressed | Oct 17, 2024 |
| ArsenicHealth-basedReported 0.012 MG/L · MCL 0.01 | IL2030600 | Archived | Oct 1, 2024through Dec 31, 2024 |
| ArsenicHealth-basedReported 0.012 MG/L · MCL 0.01 | IL2030600 | Archived | Jul 1, 2024through Sep 30, 2024 |
| Consumer Confidence Rule | IL2030600 | Resolved | Jul 1, 2024through Jul 1, 2025 |
| Consumer Confidence Rule | IL2030600 | Unaddressed | Jul 1, 2024 |
| ArsenicHealth-basedReported 0.013 MG/L · MCL 0.01 | IL2030600 | Archived | Apr 1, 2024through Jun 30, 2024 |
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 Secor ZIP 61771 using 309 PPM nearby hardness and 3 reported measurement benchmarks.
Scale protection
High-Capacity Whole House Water Softener
309 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
Copper (90th percentile), Arsenic, LEAD AND COPPER RULE REVISIONS have 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 Secor
Is tap water safe in Secor?+
EPA ECHO reports 1 active health-based violation 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 309 PPM, or 18.1 grains per gallon, classified as very hard. This is not a household tap measurement.
Do I need a water softener?+
At 309 PPM, a correctly sized whole-house softener can reduce scale and hard-water spotting. It does not replace contaminant filtration.