Integrated Wet Weather Planning

Brown and Caldwell helped the Seattle Public Utilities (SPU) to develop one of the nation’s first integrated stormwater plans to optimize cost-effective low-impact development practices and “active” treatment facilities to satisfy NPDES, TMDL, and CSO requirements. This option allowed SPU to consider improvement projects for sewage overflows and stormwater discharges while at the same time, enhancing water quality and potentially saving significant costs. Since 2009, Brown and Caldwell has supported SPU on the CSO Program and helped meet an aggressive schedule for submitting the draft Integrated Plan.