Protecting the pristine waters in our Harbor is a top-priority for The City of Avalon. We have a "Discharge Ordinance" which makes it illegal to empty a vessel's holding tank into Harbor waters. The dye-tablets dissolve and turn bright green. If there is a discharge, the green color makes it very easy to identify. We strive to make sure that every vessel with a holding tank that moors in the Harbor gets dye-tablets placed in all marine heads. We have a zero-tolerance policy for discharges and there are significant penalties for violating this ordinance. Please make sure that your sanitation system is secured while in Avalon Harbor.