Tag: Parts per million

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Is 100 ppm water safe to drink? A comprehensive guide to TDS levels

Sep 23, 2025 •

4 min read

The U.S. Environmental Protection Agency (EPA) recommends drinking water with a Total Dissolved Solids (TDS) level below 500 ppm. This makes many people wonder: **Is 100 ppm water safe to drink?** Here is what you need to know about water quality and health.