NORWALK -- Between 2004 and 2009, filters installed in 275 SoNo catch basins prevented tons of debris and pollutants from entering Norwalk Harbor, according to Director of Public Works Harold F.

The EnviroSafe modular stormwater catch basin filter system offers filtered flow rates up to 110 gpm and a high antimicrobial capacity. Can retrofit most existing flat-grate or combination curb-grated ...

Sweep leaves, garbage and debris away from the grate so stormwater can flow freely to the basin. The best time of year to ...

A sand filter, or "filtration basin", is a stormwater quality treatment system that works by using a two-component clarification system: the first is a sediment forebay for settling large particles ...

A stewardship group in Sudbury, Ont., has installed eight catch basin filters on local waterways that have collected 31 kilograms of garbage so far. A catch basin consists of a grate and a drainage ...