<Ul> <Li> Louisiana . 25, 50 or 150 NTU, or background plus 10 percent, depending on the water body. . </Li> <Li> Vermont . 10 NTU or 25 NTU, depending on water body classification . </Li> <Li> Washington . 5 NTU over background (when background is 50 NTU or less), or 10 percent increase when background is over 50 NTU . </Li> </Ul> <Li> Louisiana . 25, 50 or 150 NTU, or background plus 10 percent, depending on the water body. . </Li> <Li> Vermont . 10 NTU or 25 NTU, depending on water body classification . </Li> <Li> Washington . 5 NTU over background (when background is 50 NTU or less), or 10 percent increase when background is over 50 NTU . </Li>

Turbidity of water is an indication of the presence of