Baltimore, MD 21201 · Utility tests 2013–2023
Baltimore’s tap water has 21 contaminants, 10 above health guidelines.
- Water quality score
- 5out 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
- 10of 21 found
- Linked to cancer
- 9above guideline
- In the SGS test program
- 5of 21 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: 49.4 ppb
Health guideline: 0.06 ppb
824×Removed by RO
Level found: 53.3 ppb
Health guideline: 0.15 ppb
355×Removed by RO
Level found: 31.6 ppb
Health guideline: 0.1 ppb
316×Removed by RO
Level found: 7.22 ppb
Health guideline: 0.06 ppb
120×Removed by RO
Level found: 26.1 ppb
Health guideline: 0.4 ppb
65×Removed by RO
Level found: 1.21 ppb
Health guideline: 0.1 ppb
12×Removed by RO
Level found: 1.39 ppm
Health guideline: 0.14 ppm
9.9×Removed by RO
Level found: 1.22 ppm
Health guideline: 0.14 ppm
8.7×Tested · >99.9%
Level found: 0.233 pCi/L
Health guideline: 0.05 pCi/L
4.7×Removed by RO
Level found: 0.0386 ppb
Health guideline: 0.02 ppb
1.9×Tested · 98.6%
10 of 21 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 21201. 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 Baltimore’s water that were in that program.
- Nitrate>99.9%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.