Los Angeles, CA 90001 · Utility tests 2013–2023

Los Angeles’s tap water has 49 contaminants, 24 above health guidelines.

Water quality score: 2out 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: 24of 49 found

Linked to cancer: 18above guideline

In the SGS test program: 10of 49 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

How far over the health guideline

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

ContaminantLevel foundHealth guidelineVs. guidelineSans purifier

- PFAS
  Level found: 4.7 ppt
  Health guideline: 0.001 ppt
  4,702×
  Removed by RO
- Level found: 27.8 ppb
  Health guideline: 0.02 ppb
  1,388×
  Tested · 98.6%
- Level found: 2.29 ppb
  Health guideline: 0.004 ppb
  572×
  Tested · >97.2%
- Level found: 36.2 ppb
  Health guideline: 0.1 ppb
  362×
  Removed by RO
- Level found: 11 ppb
  Health guideline: 0.06 ppb
  184×
  Removed by RO
- Level found: 27.1 ppb
  Health guideline: 0.15 ppb
  181×
  Removed by RO
- PFAS
  Level found: 8.88 ppt
  Health guideline: 0.09 ppt
  99×
  Tested · >98.8%
- PFAS
  Level found: 24.3 ppt
  Health guideline: 0.3 ppt
  81×
  Tested · >99%
- PFAS
  Level found: 0.423 ppt
  Health guideline: 0.006 ppt
  71×
  Removed by RO
- Level found: 2.8 ppb
  Health guideline: 0.1 ppb
  28×
  Removed by RO

10 of 49 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 Los Angeles’s water that were in that program.

Shop Water Purifier Read the lab report

Hexavalent chromium
98.6%Maximum measured reduction
Arsenic
>97.2%Maximum measured reduction
Perfluorooctanoic acid
>98.8%Maximum measured reduction

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