Nashville, TN 37201 · Utility tests 2013–2023
Nashville’s tap water has 11 contaminants, 7 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
- 7of 11 found
- Linked to cancer
- 6above guideline
- In the SGS test program
- 3of 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
Level found: 33.9 ppb
Health guideline: 0.06 ppb
565×Removed by RO
Level found: 20.4 ppb
Health guideline: 0.1 ppb
204×Removed by RO
Level found: 27.3 ppb
Health guideline: 0.15 ppb
182×Removed by RO
Level found: 1.6 ppb
Health guideline: 0.06 ppb
27×Removed by RO
Level found: 4.36 ppb
Health guideline: 0.4 ppb
11×Removed by RO
Level found: 0.0805 ppb
Health guideline: 0.02 ppb
4.0×Tested · 98.6%
Level found: 0.412 ppm
Health guideline: 0.14 ppm
2.9×Tested · >99.9%
Level found: 0.101 ppb
Health guideline: 1,500 ppb
0.00×Removed by RO
Level found: 0.669 ppm
Health guideline: No health guideline
No health guidelineTested · >99.9%
Level found: 0.215 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
Utilities serving zip 37201. 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 Nashville’s water that were in that program.
- Hexavalent chromium98.6%Maximum measured reduction
- Nitrate>99.9%Maximum measured reduction
- Fluoride>99.9%Maximum measured reduction
Figures are the laboratory’s own, measured under test conditions. Your tap water differs from the challenge water.