Filtering units for sewage and water runoff for removing contaminants, trash, debris, heavy metals, grease, oil and nutrients before they enter stormwater systems; Mon-metal sewage and water run-off devices and treatment equipment, namely, non-metal in-ground sewage and water run-off basins; non-metal sewage and water run-off curb inlet and drop-in catch basins; non-metal sewage and water run-off basins comprised of in-ground basins, curb inlet catch basins, drop-in catch basins, frames, dive...