Frequent Questions

6. How do pathogens and indicators get into my drinking water?

  • The major source of Cryptosporidium, Giardia lamblia, and viruses in drinking water is human and animal fecal waste.
  • Coliforms are naturally present in the in the environment. Fecal coliform and E. coli are only found in human and animal fecal waste.
  • Legionella is found naturally in water and multiplies in hot water heating systems.
  • A major source of turbidity in drinking water is soil runoff.
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