Type 1 turbidity curtain provides silt and sediment control in calm water areas. Cities and counties are home to many calm bodies of water, including ponds, canals, ditches, and harbors. Keeping turbidity confined with silt curtains allows sediment to naturally settle.
By controlling the number of total suspended solids (TSS) in the water, the local government complies with state and federal clean water requirements. It also allows aquatic life to flourish and areas to be used in community recreation. Too much turbidity blocks sunlight from reaching plants and animals in the water. Residents are reluctant to use swimming holes and lake beaches with dirty water filled with silt.