TDS in water isn't one the the critical attributes that determine if a water is drinkable. If the TDS is high it can be safe but many people think it is unpleasant (cosmetic attribute). From the U.S. EPA website:
- National Secondary Drinking Water Regulations - The complete regulations regarding these contaminants available from the Code of Federal Regulations Web Site.
- For more information, read Secondary Drinking Water Regulations: Guidance for Nuisance Chemicals.
0.05 to 0.2 mg/LChloride
15 (color units)Copper
2.0 mg/LFoaming Agents
3 threshold odor numberpH
250 mg/LTotal Dissolved Solids