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Water Quality Report

Aurora, IL

Kane County · 184,375 residents · 6 water systems

14

Contaminants detected

6

PFAS compounds

410

Hardness (mg/L)

3

Above legal limits

1

Above health guidelines

Aurora drinking water comes from a mix of groundwater and surface water sources. Based on the most recent monitoring data, 14 contaminants have been detected in the water supply, including Lead, Nitrate, Copper, Radium, and 10 others. PFAS compounds have been detected at trace levels in Aurora water. Water hardness is 410 mg/L (very hard), which can cause scale buildup in appliances and reduce soap effectiveness.

Contaminants detected in Aurora water

Detection does not necessarily mean unsafe levels. See individual reports for concentrations and EPA limits.

Lead0.0257 / 0.015 mg/L
150% of EPA limit
Nitrate2.6 / 10 mg/L
26% of EPA limit
Copper32.5 / 1300 ug/L
3% of EPA limit
Radium12.2 / 5 pCi/L
150% of EPA limit
Total Trihalomethanes63.5 / 80 ug/L
79% of EPA limit
Haloacetic Acids (HAA5)19.8 / 60 ug/L
33% of EPA limit
Barium0.018 / 2 mg/L
1% of EPA limit
Chromium (total)0.0023 / 0.1 mg/L
2% of EPA limit
Fluoride0.58 / 4 mg/L
14% of EPA limit
Toc5.5 mg/L
Unregulated
Lithium18.6 ug/L
Unregulated
Pfhxa0.0035 ug/L
Unregulated
PFBA (Perfluorobutanoic Acid)0.0055 ug/L
UnregulatedPFAS
Pfpea0.0034 ug/L
Unregulated
PFAS (6 compounds detected)
Microplastics (not routinely tested)

Water systems serving Aurora

AURORA

183,000 servedSurface water14 contaminants2 above legal limits
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OGDEN GARDENS SUBDIVISION

420 servedGroundwater12 contaminants
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MARGARETS HI-ACRE MHP

300 servedGroundwater2 contaminants
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MARGARETS PARK VIEW ESTATES MHP

300 servedGroundwater16 contaminants1 above guideline
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CORTLAND CORNERS MHP

205 servedGroundwater18 contaminants1 above legal limit
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AURORA COMMUNITY WATER ASSN

150 servedGroundwater0 contaminants
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Other cities in Kane County

Water quality reports for nearby Illinois communities.

BataviaBurlingtonElginFox River GroveGenevaGilbertsGlenviewGodfreyHampshireMaple ParkMchenryMontgomery

Frequently asked questions

Is Aurora, IL tap water safe to drink?
Aurora tap water has 3 contaminants currently measured above EPA legal standards (Maximum Contaminant Levels), and 1 above independent health guidelines. 14 contaminants have been detected in the water supply, including Lead, Nitrate, Copper, Radium, Total Trihalomethanes. View the detailed report for each water system to see specific levels, how they compare to both legal limits and health guidelines, and what actions to take.
What contaminants are in Aurora water?
Monitoring has detected 14 contaminants in Aurora's water supply: Lead, Nitrate, Copper, Radium, Total Trihalomethanes, Haloacetic Acids (HAA5), Barium, Chromium (total), Fluoride, Toc, Lithium, Pfhxa, PFBA (Perfluorobutanoic Acid), Pfpea. Additionally, 6 PFAS compounds have been detected at trace levels. 3 of these are above EPA legal limits. 1 exceed health guidelines. See individual system reports for concentrations relative to EPA limits.
Does Aurora water have PFAS?
Yes. 6 PFAS compounds have been detected in Aurora's water supply at trace levels. PFAS are sometimes called "forever chemicals" because they do not break down in the environment. The EPA has set Maximum Contaminant Levels for several PFAS compounds. View the detailed report for specific concentrations.
Is Aurora water hard?
Yes. Aurora water has a hardness of 410 mg/L (very hard). Hard water is not a health concern but can cause scale buildup in water heaters and appliances, reduce soap effectiveness, and leave mineral deposits. Water softeners or conditioning systems can address hardness.
Where does Aurora get its drinking water?
Aurora's drinking water comes from a combination of groundwater and surface water sources. The water is treated and tested according to Illinois EPA and EPA requirements before distribution. Aurora is served by 6 water systems, the largest being AURORA (serving 183,000 people).

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