Chicago, IL 60601 · Utility tests 2013–2023
Chicago’s tap water has 20 contaminants, 13 above health guidelines.
- Water quality score
- 4out of 10Poor
Counts contaminants above an EWG health guideline, weighted by the harm the guideline protects against. 8 and above is good; 5 and above is fair.
- Above a health guideline
- 13of 20 found
- Linked to cancer
- 11above guideline
- In the SGS test program
- 4of 20 found
Contaminants found here that SGS measured the Sans Water Purifier against.
Water data: EWG Tap Water Database, utility test results 2013–2023. Guidelines are EWG health guidelines set by federal or state public-health authorities; legal limits differ.
What’s in the water
Level found: 19.1 ppb
Health guideline: 0.06 ppb
319×Removed by RO
Level found: 25.7 ppb
Health guideline: 0.15 ppb
172×Removed by RO
Level found: 8.39 ppb
Health guideline: 0.06 ppb
140×Removed by RO
Level found: 12.4 ppb
Health guideline: 0.1 ppb
124×Removed by RO
Level found: 5.01 ppb
Health guideline: 0.1 ppb
50×Removed by RO
Level found: 4.97 ppb
Health guideline: 0.1 ppb
50×Removed by RO
Level found: 6.49 ppb
Health guideline: 0.2 ppb
32×Removed by RO
Level found: 12.3 ppb
Health guideline: 0.4 ppb
31×Removed by RO
Level found: 0.896 ppb
Health guideline: 0.03 ppb
30×Removed by RO
Level found: 0.89 pCi/L
Health guideline: 0.05 pCi/L
18×Removed by RO
10 of 20 contaminants
Tested: measured by SGS on the Sans Water Purifier, the lab’s own figure. Removed by RO: listed by EWG as reduced by reverse osmosis, the purifier’s filter type. Not tested: neither.
Where this report applies
Utilities serving zip 60601. Map data © OpenStreetMap contributors.
What the Sans Water Purifier is tested to reduce
SGS, an ISO/IEC 17025 laboratory, measured the purifier’s reduction of 19 contaminants (Dec 2023 to Mar 2024). These are the worst in Chicago’s water that were in that program.
- Hexavalent chromium98.6%Maximum measured reduction
- Nitrate>99.9%Maximum measured reduction
- Barium>99.9%Maximum measured reduction
Figures are the laboratory’s own, measured under test conditions. Your tap water differs from the challenge water.