True or False: In a sediment basin, baffles are used to increase flow length.

Baffles in a sediment basin are structures that are strategically placed to redirect and slow down the flow of water within the basin. By increasing the flow length, baffles enhance the ability of the basin to settle out sediments effectively. When water flows over and around these baffles, it creates a longer path for the flow, allowing more time for solids to settle at the bottom of the basin before the water exits.

The use of baffles is particularly significant because it optimizes the sedimentation process. The longer the water takes to exit the basin, the more opportunity there is for pollutants and larger sediment particles to settle out due to gravity. This characteristic is crucial for effective stormwater management as it improves the overall water quality being discharged from the basin.

Other options may suggest limitations or conditions under which baffles are used, but the fundamental purpose of baffles universally in sediment basins is indeed to increase flow length, thus maximizing sediment removal efficiency.