What are the three parts of a site sampling plan?

The three parts of a site sampling plan focus on capturing a comprehensive picture of water quality to ensure safety and compliance with regulations. Microbiological samples are essential for detecting pathogens that can harm public health. These samples help assess the biological integrity of the water supply and identify potential contamination issues.

Disinfection by-products samples are critical as they monitor substances that can form when disinfectants (like chlorine) react with organic materials in water. These by-products can have health implications, and tracking them ensures that the water treatment process is effectively managed to minimize these risks.

Lead and copper samples are included because they are common contaminants that can leach into drinking water from plumbing systems, particularly in older infrastructures. Monitoring these metals is vital to protect public health and complies with regulations aimed at reducing exposure to harmful substances.

This comprehensive approach in the choice reflects a sampling plan that addresses critical contaminants related to health risks, unlike the other options, which either omit crucial aspects or do not align with standard monitoring practices in water quality management.