Abstract: A filter for removing contaminants from stormwater comprising: a plurality of individual treatment units (ITUs), wherein each ITU includes a perforated filter body having an inlet end and an outlet end, wherein each ITU further includes a filter bag deployed within the perforated body and connected to the inlet end such that all stormwater entering the inlet end is channeled into the filter bag; and a plurality of rigid linkage arms, wherein each rigid linkage arm is configured to connect the inlet end of one ITU to the outlet end of a different ITU so as to form a chain of ITUs and rigid linkage arms, and wherein each linkage arm is configured to connect two given ITUs so as to limit side-to-side movement of the given ITUs with respect to each other.

Abstract: A water vacuum sampling system comprising: an outer housing having a sampling port and a vacuum port, wherein the sampling port is configured to connect to a suction head and the vacuum port is configured to connect to an inlet hose of a vacuum; a velocity dampener cone disposed within the outer housing and configured to receive incoming water, air, and particles that have passed through the sampling port after being sucked up through the suction head, wherein the velocity dampener cone is perforated by a plurality of holes and flares away from the sampling port; a catch basin mounted within the outer housing and having an open upper end and a bottom outlet, wherein the velocity dampener cone extends into the open upper end; and a sample collection container removably attached to the bottom outlet.

Abstract: A filter for filtering storm water in an outfall pipe comprising: a line comprising an anchor attachment point at a proximal end of the line; and a plurality of individual treatment units (ITUs) securely connected in series to the line with a gap between adjacent ITUs, wherein each ITU has a size and shape capable of fitting inside the outfall pipe, and wherein each ITU comprises a mesh cage configured to filter contaminants out of the storm water.

Abstract: A filter for filtering storm water in an outfall pipe comprising: a line comprising an anchor attachment point at a proximal end of the line; and a plurality of individual treatment units (ITUs) securely connected in series to the line with a gap between adjacent ITUs, wherein each ITU has a size and shape capable of fitting inside the outfall pipe, and wherein each ITU comprises a mesh cage configured to filter contaminants out of the storm water.