Homer Glen Water Hardness & Quality Report (2026)
Water Hardness
14.8 grains per gallon
Source
river
pH Level
8.5
neutral = 7.0
Lead
0.008 mg/L
✓ Below action level
TDS
628.6 mg/L
Est. Daily Cost
$0.67
energy & soap waste
Source: USGS Water Quality Portal · Updated 2026
0–60
mg/L
Soft
61–120
mg/L
Moderately Hard
121–180
mg/L
Hard
180+
mg/L
Very Hard
Appliance Damage Report
In Homer Glen, your appliances are currently losing 34% efficiency due to mineral buildup.
| Appliance | In Homer Glen | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 1.5 yrs | 8.5 yrs | -82% |
| Washing Machine | 4.3 yrs | 12 yrs | -64% |
| Water Heater | 5.5 yrs | 15 yrs | -63% |
Regional Water Comparison
How Homer Glen compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Homer Glen, Illinois | 252.5 mg/L | 8.8 ppt | 🔴 Very Hard | river |
| Goodings Grove, Illinois | 274 mg/L | 9.5 ppt | 🔴 Very Hard | river |
| Mokena, Illinois | 137.5 mg/L | 4.9 ppt | 🟠 Hard | river |
| Orland Park, Illinois | 129 mg/L | 4.6 ppt | 🟠 Hard | river |
| New Lenox, Illinois | 213.5 mg/L | 7.5 ppt | 🔴 Very Hard | river |
National Benchmark
How Homer Glen compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Homer Glen | 252.5 mg/L | 🔴 High |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Homer Glen's Water Unique?
Local geology and source profile
Homer Glen, Illinois, in Will County in the southern Chicago metropolitan area, receives its municipal water from Illinois American Water or the Homer Township Water Commission, drawing from the regional supply network serving Will County's rapidly growing suburban communities. The Will County south suburbs draw water from the Kankakee River system or from Lake Michigan supply through the Joliet Area Water Commission infrastructure. Homer Glen's position in southwestern Will County places it in the transition zone between Chicago's deep-rock aquifer territory and the Kankakee River carbonate plain.
The very hard 252.5 mg/L hardness and high TDS of 628.6 mg/L reflect Will County's pervasive Silurian and Devonian dolomite geology. Northeastern Illinois is underlain by the Silurian Niagara Dolomite — ancient reef-derived calcium-magnesium carbonate formations deposited when the region lay beneath a tropical epicontinental sea — the same formations producing very hard water throughout the Chicago metropolitan south suburbs (Joliet, Lockport, Romeoville, Plainfield). The Kankakee River basin drains directly across this dolomite platform, and any groundwater supply from Will County contacts these formations at depth.
At 252.5 mg/L, Homer Glen has very hard water requiring active household mineral management. Scale accumulates rapidly in kettles and coffee machines within weeks, dishwashers leave heavy white deposits on glassware without softener treatment, and bathroom surfaces develop calcium crust requiring regular acidic cleaning. Water heater elements lose efficiency rapidly under this hardness level. A whole-house water softener is strongly recommended for Homer Glen homeowners. The elevated PFAS level of 8.8 ppt adds additional treatment motivation — a combination whole-house softener and under-sink reverse osmosis system provides comprehensive protection from both the high mineral content and the PFAS contamination.
Geology & Source: Homer Glen in Will County draws from Illinois American Water supply — the Kankakee River and regional supply system flows over the Silurian Niagara Dolomite platform of northeastern Illinois, the same ancient reef-derived carbonate formation producing very hard water throughout the Chicago south suburbs — dolomite dissolution produces very hard water at 252.5 mg/L with high TDS of 629 mg/L.