From the StormTech product line
The StormTech DC-780™ Chamber optimizes storage volumes in deep cover applications. With a footprint identical to the SC-740 chamber, the DC-780's stiffening ribs reinforce the chamber structure allowing for a maximum burial depth of 12 feet.
1 Product Variation
Designed to meet the most stringent industry performance standards for superior structural integrity while providing designers with a cost-effective method to save valuable land and protect water resources. The StormTech system is designed primarily to be used under parking lots, thus maximizing land usage for private (commercial) and public applications. StormTech chambers can also be used in conjunction with Green Infrastructure, thus enhancing the performance and extending the service life of these practices.