Niles Water Hardness & Quality Report (2026)
Water Hardness
13.3 grains per gallon
Source
river
pH Level
8.4
neutral = 7.0
Lead
0.007 mg/L
✓ Below action level
TDS
529.6 mg/L
Est. Daily Cost
$0.61
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 Niles, your appliances are currently losing 30% efficiency due to mineral buildup.
| Appliance | In Niles | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 2.1 yrs | 8.5 yrs | -75% |
| Washing Machine | 5.2 yrs | 12 yrs | -57% |
| Water Heater | 6.5 yrs | 15 yrs | -57% |
Regional Water Comparison
How Niles compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Niles, Illinois | 227.5 mg/L | 7.9 ppt | 🔴 Very Hard | river |
| Morton Grove, Illinois | 158 mg/L | 5.6 ppt | 🟠 Hard | river |
| Park Ridge, Illinois | 160 mg/L | 5.7 ppt | 🟠 Hard | river |
| Glenview, Illinois | 261.5 mg/L | 9.1 ppt | 🔴 Very Hard | river |
| Norridge, Illinois | 232.5 mg/L | 8.1 ppt | 🔴 Very Hard | river |
National Benchmark
How Niles compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Niles | 227.5 mg/L | 🔴 High |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
Bring Badger-quality water to your Niles home
Shop water softeners on Amazon.com →
What Makes Niles's Water Unique?
Local geology and source profile
Niles, Illinois, in Cook County — a major north Chicago suburban community (Niles is a significant Cook County village — a north Chicago suburb between Skokie and Park Ridge in the northwest Cook County corridor; Niles is well known for its replica of the Leaning Tower of Pisa (the Niles Leaning Tower — a half-scale replica of the original tower built in 1934 as a water tower support structure for a YMCA pool; the Niles tower has become one of the most quirky and beloved roadside attractions in the Chicago suburbs)), a diverse Cook County community with a primarily Korean-American, Polish-American, and working-class suburban population (Niles has one of the most significant Korean-American commercial and residential communities in the Chicago metro — Milwaukee Avenue in Niles is a major Korean-American business corridor), adjacent to Morton Grove and Glenview in the north Cook County corridor, and a community with strong international cultural character — draws its municipal water supply from Lake Michigan via the Northwest Water Commission. Water hardness in Niles measures 227.5 mg/L — classified as very hard.
Niles's very hard supply reflects the north Chicago Cook County Lake Michigan distribution zone's limited softening. The Northwest Water Commission distributes Lake Michigan supply through the north Cook County Niles zone with limited softening, producing the very hard 227.5 mg/L.
At 227.5 mg/L, Niles 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 the Lake Michigan via the Northwest Water Commission (City of Evanston supply) — the Cook County north Chicago suburban Niles corridor (Silurian calcareous Niagaran Dolomite — the calcareous north Chicago Cook County dolomite with Lake Michigan supply distribution; limited softening); very hard supply at 227.5 mg/L in Cook County.