Heterotrophic Plate Count

2006

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Table of Contents

• 1.0 Guideline
• 2.0 Executive summary for microbiological quality of drinking water
  • 2.1 Introduction
  • 2.2 Background
  • 2.3 Bacteria
  • 2.4 Health effects
  • 2.5 Exposure
  • 2.6 Treatment
• 3.0 Application of the guideline
  • 3.1 Corrective actions
• 4.0 Significance of heterotrophic plate counts in drinking water
  • 4.1 Description and sources
  • 4.2 Health effects
• 5.0 Role of HPC in maintaining drinking water quality
• 6.0 Role of disinfectant residuals in maintaining drinking water quality
• 7.0 Analytical methods for HPC
  • 7.1 Pour plate method
  • 7.2 Spread plate method
  • 7.3 Membrane filtration method
• 8.0 Treatment technology
• 9.0 Conclusions and recommendations
  • 9.1 Potable water quality
  • 9.2 Relationship with pathogenic microorganisms
  • 9.3 Considerations for the treatment of raw supplies
• 10.0 References
• Appendix A: List of acronyms