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Water Quality Report

Springfield, IL

Sangamon County · 129,663 residents · 12 water systems

11

Contaminants detected

1

PFAS compounds

367

Hardness (mg/L)

0

Above legal limits

2

Above health guidelines

Springfield drinking water comes from a mix of groundwater and surface water sources. Based on the most recent monitoring data, 11 contaminants have been detected in the water supply, including Lead, Nitrate, Arsenic, Copper, and 7 others. PFAS compounds have been detected at trace levels in Springfield water. Water hardness is 367 mg/L (very hard), which can cause scale buildup in appliances and reduce soap effectiveness.

Contaminants detected in Springfield water

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

Lead0 / 0.015 mg/L
0% of EPA limit
Nitrate0.15 / 10 mg/L
2% of EPA limit
Arsenic0.00063 / 0.01 mg/L
6% of EPA limit
Copper95.9 / 1300 ug/L
7% of EPA limit
Total Trihalomethanes51.3 / 80 ug/L
64% of EPA limit
49% of EPA limit
Atrazine0.31 / 3 ug/L
10% of EPA limit
Barium0.0157 / 2 mg/L
1% of EPA limit
Fluoride0.6 / 4 mg/L
15% of EPA limit
Toc4.4 mg/L
Unregulated
PFBA (Perfluorobutanoic Acid)0.006 ug/L
UnregulatedPFAS
PFAS (1 compounds detected)
Microplastics (not routinely tested)

Other cities in Sangamon County

Water quality reports for nearby Illinois communities.

Frequently asked questions

Is Springfield, IL tap water safe to drink?
Springfield tap water meets EPA legal standards (Maximum Contaminant Levels). However, 2 contaminants are present above independent health guidelines, which are often stricter than legal limits. 11 contaminants have been detected in the water supply, including Lead, Nitrate, Arsenic, Copper, 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 Springfield water?
Monitoring has detected 11 contaminants in Springfield's water supply: Lead, Nitrate, Arsenic, Copper, Total Trihalomethanes, Haloacetic Acids (HAA5), Atrazine, Barium, Fluoride, Toc, PFBA (Perfluorobutanoic Acid). Additionally, 1 PFAS compounds have been detected at trace levels. 2 exceed health guidelines. See individual system reports for concentrations relative to EPA limits.
Does Springfield water have PFAS?
Yes. 1 PFAS compounds have been detected in Springfield'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 Springfield water hard?
Yes. Springfield water has a hardness of 367 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 Springfield get its drinking water?
Springfield'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. Springfield is served by 12 water systems, the largest being SPRINGFIELD (serving 117,444 people).

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