1.) Treatment for chlorine residual using chemical de-chlorination through the addition of sodium metabisulfite (SMBS). This will consist of the construction of a small enclosure to house new chemical feed pumps and effluent sampling, as well as the installation of two manholes on the existing chlorine contact chamber to house the de-chlorination flash mixer and sampling location. 2.) Treatment to meet ammonia limits through an aerated, attached growth system placed at the end of Cell 2. This system consists of floating media modules located within one of the existing lagoons as well as blowers. 3.) This project will also consist of converting the Tillamook County Corrections Facility gravity feed line to a septic tank effluent pump system and the decommissioning of an existing pump station that will no longer be needed after the Tillamook County Corrections Facility is converted to a septic tank effluent pump system. The pump station will be replaced with a small grinder pump sized for a single bathroom. 4.) The project will replace 635 LF of existing 1-1/4’’ pipe with new 2’’ PVC pressure effluent pipe. It will also include installation of 575 LF of New 1-1/4’’ PVC pressure effluent pipe. 5.) Electrical, building, equipment supply, and piping will be required as indicated on the plans. 6.) Replace existing influent and effluent meters.
