A final design consideration is an emergency spillway or diversion structure. The total retention volume of these filters should be designed to treat the surface runoff of a particular design storm ...

There’s an old Joni Mitchell song that starts off, “They paved paradise and put up a parking lot.” The folks behind Percoa are hoping to turn that song’s message on its ear.

Gel permeation chromatography, three-dimensional excitation-emission matrix fluorescence spectroscopy, and UV-visible ...