MO HB607

Creates new offense of "unlawful placement of sediment" for purposely discharging, displacing, remobilizing, or causing erosion of sediment into Missouri state waters

Exempts returning sediment to waters if it was deposited onto land within the previous five years

Exempts movement of sediment in areas covered by state waters during nine of the previous twelve months

Classifies the offense as a class B misdemeanor