On the basis of three expeditions’ data obtained using optical observation methods, the total suspended matter (TSM) concentration field structure regularities are considered depending on water column stratification at the site of waste water discharge of the Herakleian Peninsula southern coast region. It was revealed, that TSM field is extremely inhomogeneous in the studying area; its distribution is largely determined by the background density stratification. On the sea surface, against the background with low natural TSM concentrations, the individual TSM content spots of ten times higher concentration than the surrounding background were observed. It is shown that anthropogenic suspension spreads to a distances of 0.5-1.5 miles from the release site. The known sewages’ distribution regularities from the deepsea outlets, determined by the water column stratification, are confirmed.