Any person who has been on the Chesapeake Bay near the Purse Seine fishing boats is aware of the nasty, smelly filth left behind after they have completed their harvest. There is no doubt that any unbiased agency will see this discharge as a pollutant,  This is a simple issue to resolve. Get samples of the discharge and test it to see if it complies with any of the existing guidelines for discharge into the Chesapeake Bay.