Wastewater operators face fog in two distinct ways. They might have to drive through thick banks of fog on their way to work only to face FOG (fats, oils and grease) again at the treatment plant.
Once the Lab Detective made it through dense fog to the treatment facility, he found the operators working alongside the collection system crew members, who were running a vacuum truck, normally used to clean sewer lines. They had the suction piping extended to its highest elevation and the flexible hose up over the wall of the aeration tank.
Collecting data
Joe, the chief plant operator, described the
