Zip 74101 · Tulsa, OK · 18 water systems · EWG data 2013–2023
Tulsa’s tap water has 33 contaminants, 19 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
- 19of 33 found
- Linked to cancer
- 11above guideline
- In the SGS test programme
- 5of 33 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.
- PFAS
Level found: 3.8 ppt
Health guideline: 0.001 ppt
3,800×Removed by RO
Level found: 58.7 ppb
Health guideline: 0.06 ppb
978×Removed by RO
Level found: 66.6 ppb
Health guideline: 0.15 ppb
444×Removed by RO
Level found: 8.52 ppb
Health guideline: 0.02 ppb
426×Removed by RO
Level found: 23.5 ppb
Health guideline: 0.06 ppb
392×Removed by RO
Level found: 33.1 ppb
Health guideline: 0.1 ppb
331×Removed by RO
Level found: 15.1 ppb
Health guideline: 0.1 ppb
151×Removed by RO
Level found: 4.46 ppb
Health guideline: 0.03 ppb
149×Removed by RO
Level found: 14.3 ppb
Health guideline: 0.1 ppb
143×Removed by RO
Level found: 32.4 ppb
Health guideline: 0.4 ppb
81×Removed by RO
10 of 33 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 74101. 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 Tulsa’s water that were in that programme.
- Perfluorooctane sulfonate>99%Maximum measured reduction
- Hexavalent chromium98.6%Maximum measured reduction
- Chlorate>99.8%Maximum measured reduction
Figures are the laboratory’s own, measured under test conditions. Your tap water differs from the challenge water.