From USACE’s Institute for Water ResourcesThe U.S. Army Corps of Engineers’ (USACE) Institute for Water Resources (IWR) released a report titled Managed Aquifer Recharge (MAR) and the U.S. Army Corps of Engineers: Water Security through Resilience. With the water needs of society increasing and becoming increasingly diverse, water management and planning are more challenging than ever. Water security in all its forms is as important, but seems progressively difficult to achieve. Additional water storage and flood risk management is needed, but major new surface infrastructure projects seem unlikely.  Water storage underground (managed aquifer recharge, or MAR) is an alternative to augment surface storage and increase resilience of USACE projects while improving the Nation’s water security. MAR is a term that covers artificial recharge, aquifer storage and recovery, riverbank and riverbed filtration, groundwater banking, and other mechanisms of purposeful water recharge to aquifers for later recovery.  MAR use has grown rapidly over the last two decades, progressing from an often-experimental concept to a management tool used in over 1000 sites around the world. (more)