Is it dangerous to drink treated Delta water?
Treated Delta water is perfectly safe to drink. Water agencies that treat and distribute water in systems that rely on the Delta have not been affected by Microcystis. The Contra Costa Water District (CCWD) gets 100% of its water from the Delta. CCWD monitors weekly all of its water sources for algae blooms. CCWD uses ozone for disinfection at its water treatment plants. Ozone effectively reduces Microcystin toxins to below detection levels.

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1. Is Microcystis toxic?
2. Has Microcystis been found in the Sacramento/San Joaquin Delta?
3. Is it dangerous to drink treated Delta water?
4. Has CCWD found Microcystin in any of its reservoirs?
5. Are there government regulations on Microcystis or Microcystin levels in the United States?
6. Should we be concerned about Microcystis in the future?