Water Quality Report
Dieterich, IL
Jasper County · 41,416 residents · 15 water systems
15
Contaminants detected
6
PFAS compounds
285
Hardness (mg/L)
1
Above legal limits
10
Above health guidelines
Dieterich drinking water comes from a mix of groundwater and surface water sources. Based on the most recent monitoring data, 15 contaminants have been detected in the water supply, including Lead, Nitrate, Arsenic, Copper, and 11 others. PFAS compounds have been detected at trace levels in Dieterich water. Water hardness is 285 mg/L (very hard), which can cause scale buildup in appliances and reduce soap effectiveness.
Contaminants detected in Dieterich water
Detection does not necessarily mean unsafe levels. See individual reports for concentrations and EPA limits.
Lead0.002 / 0.015 mg/L
13% of EPA limit
Nitrate1.3 / 10 mg/L
13% of EPA limit
Arsenic0.0013 / 0.01 mg/L
13% of EPA limit
Copper15 / 1300 ug/L
1% of EPA limit
Total Trihalomethanes32.8 / 80 ug/L
41% of EPA limit
Haloacetic Acids (HAA5)17.7 / 60 ug/L
30% of EPA limit
Atrazine0.31 / 3 ug/L
10% of EPA limit
PFPeA (Perfluoropentanoic Acid)0.5 ng/L
UnregulatedPFAS
Barium0.0857 / 2 mg/L
4% of EPA limit
Fluoride0.17 / 4 mg/L
4% of EPA limit
Di(2-ethylhexyl) phthalate2.2 / 6 ug/L
37% of EPA limit
Toc3.9 mg/L
Unregulated
Turbidity7.6 NTU
Unregulated
Phosphorus Total32 ug/L
Unregulated
PFBA (Perfluorobutanoic Acid)2 ng/L
UnregulatedPFAS
PFAS (6 compounds detected)
Microplastics (not routinely tested)
Water systems serving Dieterich
EJ WATER COOPERATIVE
29,720 servedSurface water15 contaminants3 above guidelines
EJ WATER-MCWC
2,083 servedSurface water2 contaminants
SHAWNEE CORRECTIONAL CENTER
1,617 servedSurface water4 contaminants1 above guideline
HEARTVILLE PWD
1,125 servedSurface water2 contaminants
ROBINSON CORRECTIONAL CENTER
1,085 servedGroundwater4 contaminants1 above guideline
EJ WATER-SANGCHRIS
1,025 servedGroundwater3 contaminants
DIETERICH
900 servedGroundwater4 contaminants
LAWRENCE COUNTY CORRECTIONAL CENTER
870 servedGroundwater4 contaminants1 above guideline
EJ WATER-WITT
785 servedSurface water5 contaminants
EJ WATER-WATSON
754 servedSurface water4 contaminants1 above guideline
EJ WATER-NIANTIC
648 servedGroundwater4 contaminants1 above guideline
EJ WATER-COALTON
317 servedSurface water4 contaminants
SAINTE MARIE
243 servedGroundwater4 contaminants1 above guideline
EJ WATER-MONTROSE
201 servedGroundwater4 contaminants1 above legal limit1 above guideline
UNITED REGIONAL WATER COOP
43 servedGroundwater22 contaminants
Other cities in Jasper County
Water quality reports for nearby Illinois communities.
Frequently asked questions
Is Dieterich, IL tap water safe to drink?
Dieterich tap water has 1 contaminant currently measured above EPA legal standards (Maximum Contaminant Levels), and 10 above independent health guidelines. 15 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, how they compare to both legal limits and health guidelines, and what actions to take.
What contaminants are in Dieterich water?
Monitoring has detected 15 contaminants in Dieterich's water supply: Lead, Nitrate, Arsenic, Copper, Total Trihalomethanes, Haloacetic Acids (HAA5), Atrazine, PFPeA (Perfluoropentanoic Acid), Barium, Fluoride, Di(2-ethylhexyl) phthalate, Toc, Turbidity, Phosphorus Total, PFBA (Perfluorobutanoic Acid). Additionally, 6 PFAS compounds have been detected at trace levels. 1 of these are above EPA legal limits. 10 exceed health guidelines. See individual system reports for concentrations relative to EPA limits.
Does Dieterich water have PFAS?
Yes. 6 PFAS compounds have been detected in Dieterich'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 Dieterich water hard?
Yes. Dieterich water has a hardness of 285 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 Dieterich get its drinking water?
Dieterich'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. Dieterich is served by 15 water systems, the largest being EJ WATER COOPERATIVE (serving 29,720 people).
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