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Water Quality Report

Mahomet, IL

Champaign County · 12,300 residents · 2 water systems

4

Contaminants detected

0

PFAS compounds

320

Hardness (mg/L)

0

Above legal limits

3

Above health guidelines

Mahomet drinking water comes from groundwater wells. Based on the most recent monitoring data, 4 contaminants have been detected in the water supply, including Lead, Nitrate, Total Trihalomethanes, Haloacetic Acids (HAA5). PFAS testing has been conducted with no detections. Water hardness is 320 mg/L (very hard), which can cause scale buildup in appliances and reduce soap effectiveness.

Contaminants detected in Mahomet water

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

Lead0.0014 / 0.015 mg/L
9% of EPA limit
Nitrate1.1 / 10 mg/L
11% of EPA limit
Total Trihalomethanes0.027 / 80 ug/L
0% of EPA limit
24% of EPA limit
PFAS (tested — none detected)
Microplastics (not routinely tested)

Other cities in Champaign County

Water quality reports for nearby Illinois communities.

Frequently asked questions

Is Mahomet, IL tap water safe to drink?
Mahomet 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. 4 contaminants have been detected in the water supply, including Lead, Nitrate, Total Trihalomethanes, Haloacetic Acids (HAA5). 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 Mahomet water?
Monitoring has detected 4 contaminants in Mahomet's water supply: Lead, Nitrate, Total Trihalomethanes, Haloacetic Acids (HAA5). 3 exceed health guidelines. See individual system reports for concentrations relative to EPA limits.
Does Mahomet water have PFAS?
Mahomet's water has been tested for PFAS compounds with no detections. Testing was conducted as part of the EPA's Unregulated Contaminant Monitoring Rule (UCMR5) program.
Is Mahomet water hard?
Yes. Mahomet water has a hardness of 320 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 Mahomet get its drinking water?
Mahomet'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. Mahomet is served by 2 water systems, the largest being MAHOMET (serving 7,000 people).

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