Product Information

StormTank™ Stormwater Storage Modules are a high-void, strong, affordable alternative to crushed stone, concrete structures, or pipe chambers for sub-surface stormwater detention or infiltration basins.



Our modules offer the largest void space of any underground stormwater storage units currently on the market (97%), and are load-rated for use under parking lots, athletic fields, parks, etc. (Designed to exceed H-25 loading criteria)! Because a StormTank™ system is installed underground, it frees up surface space for uses that would be otherwise unavailable with a typical detention pond.

A StormTank™ installation requires a much smaller footprint than a crushed rock system with the same amount of stormwater storage capacity. And less space used also means less expense for excavation, geotextile, liner, installation, and backfill. The StormTank™ stackability and variable column height (18”-36”) can maximize the use of a site with limited surface area.

AASHTO Load Tested to HS-25

Brentwood StormTank™ Modules have undergone real-life load testing at the Queen’s University GeoEngineering Centre. A single-axle load exceeding 83,000 lbs. was successfully applied to the installed Brentwood StormTank™ Stormwater System. No comparable stormwater product has ever been tested this extensively.