Hanover Park Water Hardness & Quality Report (2026)
Water Hardness
9.4 grains per gallon
Source
river
pH Level
8
neutral = 7.0
Lead
0.004 mg/L
✓ Below action level
TDS
306.7 mg/L
Est. Daily Cost
$0.43
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 Hanover Park, your appliances are currently losing 22% efficiency due to mineral buildup.
| Appliance | In Hanover Park | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 4.3 yrs | 8.5 yrs | -49% |
| Washing Machine | 7.6 yrs | 12 yrs | -37% |
| Water Heater | 9.1 yrs | 15 yrs | -39% |
Regional Water Comparison
How Hanover Park compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Hanover Park, Illinois | 161.5 mg/L | 5.7 ppt | 🟠 Hard | river |
| Bartlett, Illinois | 118 mg/L | 4.3 ppt | 🟡 Moderately Hard | river |
| Streamwood, Illinois | 130 mg/L | 4.7 ppt | 🟠 Hard | river |
| Roselle, Illinois | 176 mg/L | 6.2 ppt | 🟠 Hard | river |
| Schaumburg, Illinois | 173 mg/L | 6.1 ppt | 🟠 Hard | river |
National Benchmark
How Hanover Park compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Hanover Park | 161.5 mg/L | 🟠 Moderate |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Hanover Park's Water Unique?
Local geology and source profile
Hanover Park, Illinois, straddling Cook and DuPage Counties — a major northwest Chicago suburban community in the I-290/Route 20 corridor, a diverse Chicago northwest suburban community with a significant Indian-American (particularly Gujarati and Telugu) population, a large Pakistani-American community, and a diverse multi-ethnic northwest suburban community adjacent to Streamwood, Bartlett, and Carol Stream — draws its municipal water supply from Lake Michigan via the DuPage County Water Commission and the Village of Hanover Park Water Division. Water hardness in Hanover Park measures 161.5 mg/L — classified as hard.
Hanover Park's hard supply — harder than neighboring Streamwood (130 mg/L) — reflects the northwest Cook–DuPage County distribution zone's infrastructure characteristics. Lake Michigan source water is approximately 130–145 mg/L. Hanover Park's distribution infrastructure (a mix of older Cook County and newer DuPage County mains from the 1960s–1990s northwest suburban buildout) has accumulated moderate-to-high mineral content in certain zones, producing the harder 161.5 mg/L compared to nearby communities.
At 161.5 mg/L, Hanover Park residents face moderate-to-hard scale challenges. Monthly descaling with citric acid solution is recommended. Village of Hanover Park Water Division consistently delivers water meeting all Illinois EPA and federal EPA Safe Drinking Water Act requirements.
Geology & Source: Lake supply from Lake Michigan via the DuPage County Water Commission (DCWC) and the Village of Hanover Park Water Division — the DuPage–Cook County northwest Chicago suburban corridor (DCWC and Illinois American Water Lake Michigan supply zone — the Hanover Park northwest suburban distribution); hard supply at 161.5 mg/L — reflecting the northwest DuPage County water distribution in the Hanover Park zone.