Batavia Water Hardness & Quality Report (2026)
Water Hardness
7.1 grains per gallon
Source
river
pH Level
7.7
neutral = 7.0
Lead
0.002 mg/L
✓ Below action level
TDS
199.5 mg/L
Est. Daily Cost
$0.32
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 Batavia, your appliances are currently losing 16% efficiency due to mineral buildup.
| Appliance | In Batavia | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 5.6 yrs | 8.5 yrs | -34% |
| Washing Machine | 9.1 yrs | 12 yrs | -24% |
| Water Heater | 10.7 yrs | 15 yrs | -29% |
Regional Water Comparison
How Batavia compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Batavia, Illinois | 121.5 mg/L | 4.4 ppt | 🟠 Hard | river |
| Geneva, Illinois | 240.5 mg/L | 8.4 ppt | 🔴 Very Hard | river |
| North Aurora, Illinois | 234 mg/L | 8.2 ppt | 🔴 Very Hard | river |
| St. Charles, Illinois | 216.5 mg/L | 7.6 ppt | 🔴 Very Hard | river |
| Aurora, Illinois | 279.5 mg/L | 9.7 ppt | 🔴 Very Hard | river |
National Benchmark
How Batavia compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Batavia | 121.5 mg/L | 🟠 Moderate |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Batavia's Water Unique?
Local geology and source profile
Batavia, Illinois, in Kane County — a major northeast Illinois Fox River Valley community (Batavia is a significant Kane County city — a northeast Illinois Fox River city adjacent to Geneva and St. Charles; Batavia is part of the Fox River Valley corridor (the Geneva–St. Charles–Batavia tri-city area known as the 'Tri-Cities' — one of the most desirable outer suburban corridors in the Chicago metropolitan area; the Fox River Valley Tri-Cities are known for their historic downtowns, strong school districts, and quality of life); Batavia is known for the Fermi National Accelerator Laboratory (Fermilab — one of the most important particle physics research laboratories in the world; Fermilab is located on the western edge of Batavia and occupies a large campus along the Fox River; Fermilab operated the Tevatron (the most powerful particle accelerator in the world from 1983 to 2011) and continues to be a leading center for high-energy physics research), a diverse Kane County community with a primarily professional, technology, and middle-class suburban family population — draws its municipal water supply from the Fox River via the City of Batavia Water Division. Water hardness in Batavia measures 121.5 mg/L — classified as moderately hard.
Batavia's moderate hardness reflects the northeast Illinois Kane County Fox River Valley carbonate's calcareous character. The Fox River draws from the Silurian Niagaran Dolomite aquifer system with effective treatment, producing the moderately hard 121.5 mg/L.
At 121.5 mg/L, Batavia residents encounter moderate scale accumulation. Monthly cleaning is recommended. City of Batavia Water Division consistently delivers water meeting all Illinois EPA and federal EPA Safe Drinking Water Act requirements.
Geology & Source: River supply from the Fox River via the City of Batavia Water Division — the Kane County northeast Illinois Fox River Valley Batavia corridor (Silurian calcareous Niagaran Dolomite — the calcareous northeast Illinois Kane County Fox River carbonate Valley; effective treatment); moderately hard supply at 121.5 mg/L in Kane County.