Performs bilge maintenance cleaning/pumping operations, general pumping operations, tank/void cleaning, general housekeeping, gas free certification preparation and pumping to include but is not limited to bilges, tanks, voids, berms, pier services, various compartments, trunks, offices, spaces, heads, urinals and other containers that may contain fluids that are undesirable to the customer or for retention for the customer's intent to re-use. Fluids to pump include but are not limited to fresh water, potable water, contaminated seawater, compensating seawater, seawater, chill water, oily waste, oil, fuel (JP-5, DFM or equivalent), greywater, blackwater, and neutralized chlorine water.