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Water Quality Report

Winchester, IL

Morgan County · 6,680 residents · 6 water systems

3

Contaminants detected

0

PFAS compounds

362

Hardness (mg/L)

0

Above legal limits

4

Above health guidelines

Winchester drinking water comes from a mix of groundwater and surface water sources. Based on the most recent monitoring data, 3 contaminants have been detected in the water supply, including Lead, Total Trihalomethanes, Haloacetic Acids (HAA5). Water hardness is 362 mg/L (very hard), which can cause scale buildup in appliances and reduce soap effectiveness.

Contaminants detected in Winchester water

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

Lead0.0027 / 0.015 mg/L
18% of EPA limit
Total Trihalomethanes64.5 / 80 ug/L
81% of EPA limit
Haloacetic Acids (HAA5)20.4 / 60 ug/L
34% of EPA limit
Microplastics (not routinely tested)

Water systems serving Winchester

SMG WATER COOP

3,110 servedSurface water3 contaminants1 above guideline
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WINCHESTER

1,589 servedGroundwater20 contaminants
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EXETER-MERRITT WATER COOP

820 servedGroundwater4 contaminants1 above guideline
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SCOTT COUNTY RURAL WATER CO-OP

493 servedGroundwater4 contaminants1 above guideline
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ALSEY-GLASGOW WATER COMMISSION

475 servedGroundwater3 contaminants1 above guideline
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SMG - LYNNVILLE

193 servedGroundwater1 contaminants
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Other cities in Morgan County

Water quality reports for nearby Illinois communities.

AlexanderChapinConcordFranklinJacksonvilleMeredosiaMurrayvilleSouth JacksonvilleWaverly

Frequently asked questions

Is Winchester, IL tap water safe to drink?
Winchester tap water meets EPA legal standards (Maximum Contaminant Levels). However, 4 contaminants are present above independent health guidelines, which are often stricter than legal limits. 3 contaminants have been detected in the water supply, including Lead, 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 Winchester water?
Monitoring has detected 3 contaminants in Winchester's water supply: Lead, Total Trihalomethanes, Haloacetic Acids (HAA5). 4 exceed health guidelines. See individual system reports for concentrations relative to EPA limits.
Is Winchester water hard?
Yes. Winchester water has a hardness of 362 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 Winchester get its drinking water?
Winchester'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. Winchester is served by 6 water systems, the largest being SMG WATER COOP (serving 3,110 people).

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