Bar or wire-mesh screens typically encounter the largest amount of debris in which season?

Bar or wire-mesh screens typically encounter the largest amount of debris in which season?

• A. Beginning Of Spring
• B. During Spring
• C. Autumn
• D. Winter

Answer: (C)

Leaves and other vegetation shed most heavily in autumn, so the amount of debris entering surface-water intakes peaks then. Bar or wire-mesh screens catch this large debris before it can proceed to treatment, and the autumn leaf fall leads to the fastest and heaviest buildup on these screens. Spring does bring some debris from new growth and storms, but the overall volume is typically less than autumn’s leaf fall, while winter generally has fewer leaves contributing unless there’s significant storm debris. So, the screens experience the largest debris load in autumn, driving the need for more frequent cleaning and maintenance then.

Leaves and other vegetation shed most heavily in autumn, so the amount of debris entering surface-water intakes peaks then. Bar or wire-mesh screens catch this large debris before it can proceed to treatment, and the autumn leaf fall leads to the fastest and heaviest buildup on these screens. Spring does bring some debris from new growth and storms, but the overall volume is typically less than autumn’s leaf fall, while winter generally has fewer leaves contributing unless there’s significant storm debris. So, the screens experience the largest debris load in autumn, driving the need for more frequent cleaning and maintenance then.