for any of Purposes 1 to 4.

1A

Purpose 1 is to secure the efficient working of a drainage system.

1B

Purpose 2 is to regulate the effects on the environment of a drainage system.

1C

Purpose 3 is to secure the effectiveness of flood risk management work within the meaning of section 165.

1D

Purpose 4 is to secure the effectiveness of works done in reliance on section 38 or 39 of the Flood and Water Management Act 2010 (incidental flooding or coastal erosion).