Managed aquifer recharge is the process of recharging an aquifer under controlled conditions in order to store water for later abstraction for a particular use. MAR is a useful practice, with aquifers able to act as both a storage and source for local alternative water supply for fit-for-purpose uses. Injecting treated stormwater into aquifers can replenish water levels for later use, whilst diverting excess stormwater flows from entering creeks and rivers which have damaging effects to waterways.