Changes

* [[Wells, shafts, and boreholes]] recharge – in which infrastructure are developed to pump water to an aquifer to recharge it and then either withdraw it at the same or a nearby location (e.g. aquifer storage and recovery, ASR);

* Induced bank infiltration – in which groundwater is withdrawn at one location to create or enhance a hydraulic gradient that will lead to increased recharge (e.g. bank filtration, dune filtration)

There are several common operational issues experienced by MAR schemes. These include: clogging of wells, stability of infrastructure under operating conditions, protection of groundwater quality, operation and management of the scheme, ownership of the stored water, monitoring, loss of infiltrated/injected water, policy and cultural acceptability and related stakeholder communications. Successful operation requires appropriate training for operators, access to successful demonstrations of the technologies being deployed and sound and integrated management of water resources.