According to the American Water Works Association, what is the recommended minimum supply of water treatment chemicals to maintain?

• A. 15 days
• B. 30 days
• C. 45 days
• D. 60 days

Answer: (B)

The recommended minimum supply of water treatment chemicals to maintain, as outlined by the American Water Works Association, is 30 days. This guideline is critical for ensuring that water treatment facilities can effectively handle any fluctuations in supply or demand, as well as unexpected delays in receiving chemical deliveries.

Maintaining a supply for 30 days helps to ensure that operators have enough time to make necessary adjustments to treatment processes or sourcing alternative supplies if needed. This buffer is essential in the context of water safety and regulatory compliance, as it ensures that treatment facilities can maintain consistent water quality and meet public health standards without interruption.

While longer supply durations may provide additional security, the basis for the 30-day minimum is to balance operational efficiency and practical supply chain management, ensuring that water treatment facilities are adequately prepared for routine operations and potential emergencies.