Zip 48201 · Detroit, MI · 1 water systems · EWG data 2013–2023

Detroit’s tap water has 11 contaminants, 5 above health guidelines.

Water quality score: 6out of 10Fair

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: 5of 11 found

Linked to cancer: 4above guideline

In the SGS test programme: 4of 11 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.

Times the health guideline, on a log scale

Within guideline
Up to 10×
10 to 100×
100 to 1,000×
Over 1,000×

ContaminantLevel foundHealth guidelineTimes the guidelineSans purifier

- Level found: 20.1 ppb
  Health guideline: 0.06 ppb
  335×
  Removed by RO
- Level found: 24.9 ppb
  Health guideline: 0.15 ppb
  166×
  Removed by RO
- Level found: 12.4 ppb
  Health guideline: 0.1 ppb
  124×
  Removed by RO
- Level found: 0.116 ppb
  Health guideline: 0.02 ppb
  5.8×
  Tested · 98.6%
- Level found: 0.455 ppm
  Health guideline: 0.14 ppm
  3.2×
  Tested · >99.9%
- PFAS
  Level found: 0.057 ppt
  Health guideline: 0.3 ppt
  0.19×
  Tested · >99%
- PFAS
  Level found: 16.1 ppt
  Health guideline: 1,000 ppt
  0.02×
  Removed by RO
- Level found: 0.106 ppb
  Health guideline: 1,500 ppb
  0.00×
  Removed by RO
- Level found: 0.588 ppm
  Health guideline: No health guideline
  No health guideline
  Tested · >99.9%
- Level found: 0.194 ppb
  Health guideline: 21 ppb
  0.01×
  Not tested

10 of 11 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

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 Detroit’s water that were in that programme.

Shop Water Purifier Read the lab report

Hexavalent chromium
98.6%Maximum measured reduction
Nitrate
>99.9%Maximum measured reduction
Perfluorooctane sulfonate
>99%Maximum measured reduction

Figures are the laboratory’s own, measured under test conditions. Your tap water differs from the challenge water.