Shorewood Water Hardness & Quality Report (2026)
Water Hardness
13.1 grains per gallon
Source
river
pH Level
8.4
neutral = 7.0
Lead
0.006 mg/L
✓ Below action level
TDS
514.8 mg/L
Est. Daily Cost
$0.60
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 Shorewood, your appliances are currently losing 30% efficiency due to mineral buildup.
| Appliance | In Shorewood | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 2.2 yrs | 8.5 yrs | -74% |
| Washing Machine | 5.3 yrs | 12 yrs | -56% |
| Water Heater | 6.7 yrs | 15 yrs | -55% |
Regional Water Comparison
How Shorewood compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Shorewood, Illinois | 223.5 mg/L | 7.8 ppt | 🔴 Very Hard | river |
| Channahon, Illinois | 152 mg/L | 5.4 ppt | 🟠 Hard | river |
| Plainfield, Illinois | 214 mg/L | 7.5 ppt | 🔴 Very Hard | river |
| Crest Hill, Illinois | 104 mg/L | 3.8 ppt | 🟡 Moderately Hard | river |
| Joliet, Illinois | 187.5 mg/L | 6.6 ppt | 🔴 Very Hard | river |
National Benchmark
How Shorewood compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Shorewood | 223.5 mg/L | 🔴 High |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Shorewood's Water Unique?
Local geology and source profile
Shorewood, Illinois, in Will County — a Will County village adjacent to Joliet and Minooka in the southwest Chicago suburban corridor — receives its municipal water from Illinois American Water, drawing from the Kankakee River or DuPage River (Will County) through the Illinois American Water northeast Illinois system.
The very hard 223.5 mg/L hardness and elevated TDS of 514.8 mg/L reflect the Will County river system's intense carbonate character. The Kankakee River at Will County drains the Kankakee Arch — Silurian Niagara Dolomite (the dominant northeast Illinois carbonate platform — very high purity dolomite), Ordovician Galena Dolomite (calcareous), and calcareous Pleistocene Lake Michigan Lobe till (ground-up dolomite and limestone from the Wisconsin Glaciation). The Kankakee Arch's pure dolomite lithology produces the very hard Will County river water supply.
At 223.5 mg/L, Shorewood's water is very hard — scale builds rapidly in appliances and water heaters, and a water softener is strongly recommended. Monthly descaling is appropriate. The PFAS level of 7.8 ppt warrants a certified drinking water filter — the Joliet Will County industrial corridor (Joliet Arsenal AFFF legacy — one of the largest PFAS-contaminated military-industrial sites in the Midwest), the Will County petrochemical and refining corridor, and the southwest Chicago PFAS background contribute to Shorewood's readings.
Geology & Source: Shorewood in Will County draws from Illinois American Water on the Kankakee River (Will County, northeast Illinois) — the Kankakee drains the Kankakee Arch (Silurian Niagara Dolomite, Ordovician Galena Dolomite, calcareous Pleistocene Lake Michigan Lobe till) — Illinois Will County Kankakee River Silurian-Ordovician carbonate watershed produces very hard water at 223.5 mg/L with TDS 514.8 mg/L in this Will County Illinois village.