Elk Grove Village Water Hardness & Quality Report (2026)
Water Hardness
13.7 grains per gallon
Source
river
pH Level
8.5
neutral = 7.0
Lead
0.007 mg/L
✓ Below action level
TDS
556.5 mg/L
Est. Daily Cost
$0.63
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 Elk Grove Village, your appliances are currently losing 31% efficiency due to mineral buildup.
| Appliance | In Elk Grove Village | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 1.9 yrs | 8.5 yrs | -78% |
| Washing Machine | 4.9 yrs | 12 yrs | -59% |
| Water Heater | 6.2 yrs | 15 yrs | -59% |
Regional Water Comparison
How Elk Grove Village compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Elk Grove Village, Illinois | 234.5 mg/L | 8.2 ppt | 🔴 Very Hard | river |
| Wood Dale, Illinois | 252 mg/L | 8.8 ppt | 🔴 Very Hard | river |
| Bensenville, Illinois | 144.5 mg/L | 5.1 ppt | 🟠 Hard | river |
| Mount Prospect, Illinois | 177 mg/L | 6.2 ppt | 🟠 Hard | river |
| Addison, Illinois | 215.5 mg/L | 7.5 ppt | 🔴 Very Hard | river |
National Benchmark
How Elk Grove Village compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Elk Grove Village | 234.5 mg/L | 🔴 High |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Elk Grove Village's Water Unique?
Local geology and source profile
Elk Grove Village, Illinois, in Cook County — a major northwest Cook County suburban community (Elk Grove Village is one of the most significant industrial and business park communities in the Chicago metro — home of one of the largest industrial parks in the United States, the Elk Grove Technology Park, with hundreds of manufacturing and distribution companies employing tens of thousands of workers), adjacent to O'Hare International Airport (Elk Grove Village's location immediately adjacent to O'Hare makes it one of the most logistics-advantaged industrial communities in the country — the proximity to O'Hare drives significant air cargo, warehousing, and distribution activity), a diverse Cook County community with a significant Polish-American, Korean-American, and Indian-American population, and a historically significant post-WWII planned suburban development — draws its municipal water supply via the Northwest Water Commission. Water hardness in Elk Grove Village measures 234.5 mg/L — classified as very hard.
Elk Grove Village's very hard supply reflects the northwest Cook County distribution characteristics. The Northwest Water Commission distributes Lake Michigan supply (raw hardness approximately 140–160 mg/L) from Chicago through northwest Cook County. The older northwest suburban mains and O'Hare corridor infrastructure produce the very hard 234.5 mg/L.
At 234.5 mg/L, Elk Grove Village residents face significant hard water challenges. Regular water softeners and descaling are strongly recommended. Northwest Water Commission consistently delivers water meeting all Illinois EPA and EPA Safe Drinking Water Act requirements.
Geology & Source: Lake supply from Lake Michigan via the Northwest Water Commission (City of Evanston wholesale) — the Cook County northwest Chicago suburban Elk Grove Village corridor (Lake Michigan calcareous-moderate freshwater supply — Northwest Water Commission treatment and distribution to Elk Grove Village northwest Cook zone; with significant distribution hardness in older northwest suburban mains); very hard supply at 234.5 mg/L in Cook County.