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Water Quality Report

Romeoville, IL

Will County · 50,458 residents · 1 water system

16

Contaminants detected

4

PFAS compounds

543

Hardness (mg/L)

0

Above legal limits

3

Above health guidelines

Romeoville drinking water comes from groundwater wells. Based on the most recent monitoring data, 16 contaminants have been detected in the water supply, including Lead, Nitrate, Arsenic, Radium, and 12 others. PFAS compounds have been detected at trace levels in Romeoville water. Water hardness is 543 mg/L (very hard), which can cause scale buildup in appliances and reduce soap effectiveness.

Contaminants detected in Romeoville water

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

Lead0.0082 / 0.015 mg/L
55% of EPA limit
Nitrate0.555 / 10 mg/L
6% of EPA limit
Arsenic0.00033 / 0.01 mg/L
3% of EPA limit
Radium3.3 / 5 pCi/L
66% of EPA limit
40% of EPA limit
12% of EPA limit
Nickel0.0026 mg/L
UnregulatedInorganic
Selenium0.00081 / 0.05 mg/L
2% of EPA limit
Barium0.175 / 2 mg/L
9% of EPA limit
Chromium (total)0.00076 / 0.1 mg/L
1% of EPA limit
Fluoride1.2 / 4 mg/L
30% of EPA limit
Diquat0.42 / 20 ug/L
2% of EPA limit
Pfhxa0.0066 ug/L
Unregulated
PFBA (Perfluorobutanoic Acid)0.005 ug/L
UnregulatedPFAS
Pfpea0.0119 ug/L
Unregulated
Lithium41.4 ug/L
Unregulated
PFAS (4 compounds detected)
Microplastics (not routinely tested)

Other cities in Will County

Water quality reports for nearby Illinois communities.

Frequently asked questions

Is Romeoville, IL tap water safe to drink?
Romeoville tap water meets EPA legal standards (Maximum Contaminant Levels). However, 3 contaminants are present above independent health guidelines, which are often stricter than legal limits. 16 contaminants have been detected in the water supply, including Lead, Nitrate, Arsenic, Radium, Total Trihalomethanes. View the detailed report for each water system to see specific levels and how they compare to both legal limits and health guidelines.
What contaminants are in Romeoville water?
Monitoring has detected 16 contaminants in Romeoville's water supply: Lead, Nitrate, Arsenic, Radium, Total Trihalomethanes, Haloacetic Acids (HAA5), Nickel, Selenium, Barium, Chromium (total), Fluoride, Diquat, Pfhxa, PFBA (Perfluorobutanoic Acid), Pfpea, Lithium. Additionally, 4 PFAS compounds have been detected at trace levels. 3 exceed health guidelines. See individual system reports for concentrations relative to EPA limits.
Does Romeoville water have PFAS?
Yes. 4 PFAS compounds have been detected in Romeoville'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 Romeoville water hard?
Yes. Romeoville water has a hardness of 543 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 Romeoville get its drinking water?
Romeoville's drinking water comes from groundwater wells that draw from underground aquifers. The water is treated and tested according to Illinois EPA and EPA requirements before distribution. Romeoville is served by one water system: ROMEOVILLE.

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