Carpentersville Water Hardness & Quality Report (2026)
Water Hardness
6.7 grains per gallon
Source
river
pH Level
7.6
neutral = 7.0
Lead
0.002 mg/L
✓ Below action level
TDS
182.8 mg/L
Est. Daily Cost
$0.31
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 Carpentersville, your appliances are currently losing 15% efficiency due to mineral buildup.
| Appliance | In Carpentersville | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 5.8 yrs | 8.5 yrs | -32% |
| Washing Machine | 9.4 yrs | 12 yrs | -22% |
| Water Heater | 11 yrs | 15 yrs | -27% |
Regional Water Comparison
How Carpentersville compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Carpentersville, Illinois | 114.5 mg/L | 4.1 ppt | 🟡 Moderately Hard | river |
| Algonquin, Illinois | 227 mg/L | 7.9 ppt | 🔴 Very Hard | river |
| Elgin, Illinois | 230 mg/L | 8 ppt | 🔴 Very Hard | river |
| Cary, Illinois | 119 mg/L | 4.3 ppt | 🟡 Moderately Hard | river |
| Lake in the Hills, Illinois | 271.5 mg/L | 9.4 ppt | 🔴 Very Hard | river |
National Benchmark
How Carpentersville compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Carpentersville | 114.5 mg/L | 🟡 Low |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Carpentersville's Water Unique?
Local geology and source profile
Carpentersville, Illinois, in Kane County — a major Kane County Chicago northwest exurban community in the Fox River Valley, a diverse Kane County community with a significant Latino-American (primarily Mexican-American) population (Carpentersville has one of the highest percentages of Latino-American residents in the Chicago suburban ring), adjacent to Algonquin and Elgin in the Fox River Valley corridor, and a growing northwest exurban Chicago suburban community — draws its municipal water supply from Lake Michigan via Illinois American Water and the Village of Carpentersville Water Division. Water hardness in Carpentersville measures 114.5 mg/L — classified as moderately hard.
Carpentersville's moderate hardness reflects the Kane County Fox Valley Illinois American Water distribution characteristics. The Lake Michigan source is approximately 130–145 mg/L. Carpentersville's distribution infrastructure (primarily 1960s–2000s Kane County exurban buildout era) has accumulated moderate mineral content. The Kane County Fox Valley Illinois American Water distribution zone in the Carpentersville area produces the moderate 114.5 mg/L.
At 114.5 mg/L, Carpentersville residents encounter moderate scale accumulation. Monthly cleaning with citric acid solution is recommended. Illinois American Water consistently delivers water meeting all Illinois EPA and federal EPA Safe Drinking Water Act requirements.
Geology & Source: Lake supply from Lake Michigan via the Illinois American Water and the Village of Carpentersville Water Division — the Kane County Fox River Valley Chicago northwest exurban (Wisconsin Age calcareous Lake Michigan Lobe till and Silurian Niagara Dolomite substrate; Illinois American Water Lake Michigan supply zone); moderately hard supply at 114.5 mg/L — reflecting the Kane County Fox Valley Illinois American Water distribution in the Carpentersville zone.