The digesters are five feet deep with the influent pipe discharging the raw sewage directly above them. The digestion section allows the incoming solids to settle out and to be anaerobically digested. The wastewater then flows in a northerly direction through the pond. The primary ponds are tapered at the northern end to allow for maximum detention time. Since this treatment facility works using natural processes, maximum treatment is achieved by maximizing the detention time within the ponds.
Wastewater leaves the primary ponds through baffles in the north end.
These baffles are 3 feet in diameter and surround 18 inch outlet pipes. The baffles serve to retain floatables in the ponds. Normal operation has all of the flow going to pond 2. However, should pond 2 become overloaded or require repairs, the flow can be directed to either Ponds 3 or 4 or both. The flow then enters pond 4 at the southeasterly end of the pond.