Developing New Treatment Media for Park Place Stormwater Facility

Herrera is developing a new, non-proprietary, treatment media intended to remove 80 to 90 percent of total phosphorus from stormwater runoff to Lake Whatcom. The multi-phase project includes research and development (R&D), performance monitoring, and design of a regional stormwater treatment facility that uses the new media. During the R&D phase, we evaluated various combinations of media components to create a media that’s very effective in removing total phosphorus. Then we designed a pilot test facility with a prototype filter. We will monitor the facility and will report results to the Washington State Department of Ecology to obtain a General Use Level Designation (GULD). Following GULD certification, we will design and prepare construction documents for a complete reconstruction of the Park Place Stormwater Facility, using the new media to remove more phosphorus from stormwater before it discharges to the lake. for the Park Place facility treats runoff from approximately 190 acres, which is about one-third of the Lake Whatcom watershed in Bellingham.