Erosion and Sediment Control Tip #103
Valves can be used on the outlet of a sediment basin; however, they must be properly used. A valve can be used to store turbid runoff until the water is clean enough for discharge. A properly used flocculant will reduce the storage time for the basin by quickly reducing turbidity. Always check for upcoming runoff events and make sure the basin has storage available. So, the take home is that a valve on the outlet of a sediment basin requires proper manual operation. Perry L Oakes, PE Alabama’s Erosion and Sediment Control Program Manager