Storm water inlet pollution trap

A storm water inlet pollutant trap for managing a water flow through a storm drain and extracting pollutants therefrom, comprising:

• a housing adapted to be suspended below a storm water inlet, said housing including therein:
• an upper surface to direct the water flow;
• a first detention area at an upper portion thereof into which the water flow is directed;
• a second detention area below said first detention area;
• a damper separating said first detention area from said second detention area;
• at least one aperture positioned at least partly below the level of said first detention area;
• and
• a passageway leading from said second detention area to said aperture;
• wherein under low flow conditions the water flow proceeds from said first detention area through said damper into said second detention area and ultimately through said passageway to exit via said aperture;
• and
• wherein under high flow conditions the water flow bypasses said second detention area by overflowing said first detention area to exit via said aperture.