I know a number of years ago, it was the sewer department inspecting for sumps, etc being pumped into the sewer line. At that time, those who had been pumping ground water, etc, into the sanitary sewers were forced to pump out side their houses, most at that time simply pumped into the streets. More recently the County government outlawed pumping into the streets, those near a drainage ditch or a storm sewer were lucky, others were up a creek without a paddle.