AS Spring and Bore 3-Monthly Post-Treatment Microbiological Monitoring

For drinking water supplies following the Acceptable Solution for Spring and Bore Drinking Water Supplies (AS-SB) to ensure that treated water remains safe for consumption and meets microbiological water quality standards.

Why This Suite Is Important

Post-treatment microbiological monitoring ensures that treatment systems effectively remove microbiological risks and maintain safe drinking water quality.

• E. coli and total coliforms indicate microbiological contamination risks and potential system failures.
• Turbidity testing ensures that filtration and treatment processes are operating as intended.
• If turbidity exceeds the manufacturer's limits, an investigation and corrective action must be taken.
• All end-point treatment systems must be sampled within a 5-year period to ensure full compliance.

The Maximum Acceptable Values (MAVs) and treatment limits for these determinands are:

• Microbiological Contaminants:

  • E. coli: Must not be detected in 100 mL samples
  • Total Coliforms: Presence indicates potential contamination

• Chemical & Physical Contaminants:

  • Turbidity: Must be at a level suitable for cartridge filtration and UV disinfection