Zip 60601 · Chicago, IL · 1 water systems · EWG data 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 programme
- 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
Worst first. Contaminants Sans has no evidence for come last unless they are above their guideline. Levels are utility averages reported to EWG.
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 programme.
- 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.