What method utilizes air injection into the well?

Air surging is a method used in groundwater well maintenance and rehabilitation. It involves injecting compressed air into the well, which creates bubbles that rise through the water column. As these air bubbles ascend, they agitate the water and can help dislodge any sediment, mineral deposits, or biofouling within the well. This process can improve water flow and quality by effectively cleaning the well without the need for harsh chemicals.

In contrast, the other methods such as pumping water level, backwashing, and static water level measurement do not involve air injection. Pumping water level refers to measuring the groundwater level while water is being pumped from the well, backwashing is a method used in filtration systems to clean filters, and static water level denotes the measurement of groundwater when the well is not being affected by pumping. Each of these methods serves a different purpose in groundwater management and well maintenance, emphasizing the unique role of air surging in enhancing well performance.