Project ID: SS743701

Miscellaneous Lift Station Improvements

Project Map: View Project Map
Project Type: Pump Station
Project Phase: Construct

Project Description:

The City of Columbia owns and operates 56 pump stations in its wastewater collection and transmission system, including six major stations. Under the Clean Water 2020 Program, the City is improving its pump stations to reduce sanitary sewer overflows in compliance with the Consent Decree between the City and the U.S. EPA. The City selects a number of pump stations each fiscal year using the budget set aside in SS7384. Under this project, SS7437, the City has identified the following 12 pump stations for upgrades during this fiscal-year cycle:

▪ Regatta Point No. 1 Lift Station
▪ Regatta Point No. 2 Lift Station
▪ Harbor Point Lift Station
▪ Village Pond Lift Station
▪ Owens Field Lift Station
▪ Emerald Lakes Lift Station
▪ Woodlands Lift Station
▪ Killian Crossings Lift Station
▪ Hillcreek No. 1 Lift Station
▪ Hillcreek No. 2 Lift Station
▪ East Bluff Lift Station
▪ Galaxy Lift Station

All facilities are submersible pump stations with constant-speed pumps. These stations are located on small, isolated, unsecured sites serving small communities and consist of dual submersible wet wells, with electrical controls housed in outdoor NEMA enclosures mounted on racks. The Lift Station and Backup Power project will include a detailed evaluation of these 12 pump stations to determine needed upgrades, including removal of old equipment and replacement of pumps; piping and related appurtenances; generators, natural gas service, automatic transfer switches, and related backup power requirements; SCADA interfaces; security fencing; and various other site-specific needs.

The City is currently undertaking a force main condition assessment project at selected major pump stations and a Supervisory Control and Data Acquisition (SCADA) improvement project for all pump stations through Capital Improvement Project SS7333. Separately, the City is undertaking another project (SS7060) to improve six pump stations.

Although the above-referenced projects address the risk of sanitary sewer overflows (SSOs) at selected pump stations, the remaining pump stations pose risks related to SSOs, constrained growth, aging infrastructure, and other issues.

Based on criticality, this project will select a handful of pump stations for improvements each fiscal year until all necessary improvements have been completed at the remaining pump stations.

Council District: III & IV
Sewer Basin: Broad River, Crane Creek, Gills Creek, Mill Creek, Rocky Branch, Saluda River, Smith Branch, West Columbia
Public Benefit: Efficient Operations, Environmental, Regulatory Compliance.