Stormwater Detention / Exfiltration Tank

The Atlantis tank system installation consisted of a 72m³ (2553 cf) detention tank installed within a sub division. The underground detention system receives surface run-off through a network of catch basins connected to the tank by underground pipes.

Some of the collected storm water will ex-filtrate into the ground through the surrounding slightly permeable native soil. The remaining water will drain into the existing municipal storm sewers through a controlled outlet. By managing the storm water locally and delaying its release, this tank will prevent local flooding and stream erosion during heavy storms. For areas with high concentrations of children playing, underground detention help alleviate the public safety risks and liabilities associated with surface ponds.