Renovation of a water / sewer project in Ashland, Oregon. Conceptual plans call for the renovation of a water / sewer project.

Secondary clarification is provided by three circular clarifiers. Flow is distributed to the clarifiers by a splitter box. Each clarifier is a center feed unit with a rotating sludge removal mechanism. The system includes flow control gates, valves, and scum pumping. All three clarifiers typically operate throughout the year. The oldest treatment unit is Clarifier #2. Clarifier #2 mechanism was not replaced as part of the 1998 project. All clarifiers have Stamford baffles. Clarifiers #1 and 3 have new mechanisms. Clarifier #2 has the original steel mechanism with a draft tube type sludge removal system. Operators report difficulty in maintaining sludge removal balance from Clarifier #2. It is recommend replacing Clarifier 2 suction pipe type mechanism with a spiral scraper type mechanism similar to Clarifiers 1 and 3. Benefits include more similar clarifier performance (consistent sludge movement, eliminated draft tube plugging, etc.), and Operations will no longer need to adjust the suction pipe valves to balance the sludge removal. As of November 16, 2023, this project is included in the city’s 2024-2029 Capital Improvement Program (CIP). Construction expected FY2025 with completion in FY2027. *Project information has been obtained through a public capital improvement plan (CIP). A CIP is a financial schedule for short- and long-range projects which is updated regularly. Information listed in the CIP often evolves based on funding availability and the project details, including timeline and value, are subject to change. The content management team will continue to pursue additional details as they become available.