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Frequent Questions

  1. Ground Water & Drinking Water
  2. Fact Sheets
  3. Heterotrophic Plate Count (HPC)

Heterotrophic Plate Count (HPC)
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  • 01. What are pathogens (HPC)?
  • 02. What pathogens does EPA regulate in drinking water, and what are their health effects (HPC)?
  • 03. What are indicators like HPC?
  • 04. What indicators, like HPC, does EPA regulate in drinking water for pathogens and how do they reflect problems?
  • 05. What are EPA?s drinking water regulations for pathogens and indicators like HPC?
  • 06. How do pathogens, like HPC, and indicators get into my drinking water?
  • 07. How will I know if pathogens are in my drinking water (HPC)?
  • 08. How are pathogens and indicators removed from my drinking water like HPC?
  • 09. How do I learn more about pathogens and my drinking water (HPC)?
  • 10. When must water suppliers notify their customers of a violation for HPC?
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