Transit Projects / Storm Water & Construction Dewatering

Client: Salt Lake City Commuter Rail Constructors; Stacy and Witbeck; Stacy Witbeck Kiewit-Western
Location: Wasatch Front, Utah

SAGE developed Storm Water Pollution Prevention Plans (SWPPP) for two light rail construction projects in Salt Lake City, the Gateway to Intermodal Hub TRAX line and the Sugar House Streetcar line. Primary pollution prevention measures consisted of controlling the influx of sediment into the storm water system through inlet protection and sediment control best management practices (BMPs). SAGE performed weekly SWPPP inspections for the Sugar House Streetcar project to ensure compliance with the plan.

SAGE also provided construction dewatering support for the Airport and West Valley TRAX light rail lines as well as the FrontRunner commuter rail line. We collected samples of water to be discharged and used field instruments or laboratory analysis to determine whether the water could be released to the storm water system without treatment. If the water exceeded regulatory limits, SAGE selected appropriate treatment methods including storage in frac tanks while the pH was adjusted or filtering or settling the water to remove suspended solids. We monitored the treatment progress until the water met discharge standards.