The Jefferson Waste Water Treatment Plant Improvements project consisted of:
- providing soil stabilization at the jobsite by means of over excavating the surface layer of soft soils and backfilling with imported coarse-grained granular material
- 30 day monitoring of the completed site fill for settlement prior to tank construction
- construction of new influent pump station with three submersible pumps, new elevated headworks with a mechanically cleaned screen, two new sequencing batch reactor basins, a new equalization basin, and a new concrete channel for UV disinfection equipment
- furnishing and installing packaged SBR treatment equipment and UV disinfection equipment
- construction of new blower and electrical control building equipped with five blowers and a standby generator
- construction of new operations building with laboratory, offices, mud room and restroom
- rehabilitation of the existing contact stabilization basin and convert to an aerobic digester
- grading, paving and site piping, electrical and instrumentation work
- construction of approximately 200 feet of 12" influent gravity sewer pipelines and construction of approximately 1,670 feet of 24" influent gravity sewer pipelines
- construction of a new 26" outfall pipeline and diffuser extending into the Santiam River which had to be completed in a two month window of time
- Design Capacity of Facility-900 gpd