Artificial recharge (also known as aquifer re-injection) is the process of injecting (or recharging) water into the ground in a controlled way, by means of special recharge wells. The water is pumped from the dewatering system and then piped to the recharge location, which may be a considerable distance away, where the water is injected back into the ground. Water may have to the treated prior to recharge, to reduce the risk of clogging of recharge wells.
Artificial recharge may be carried out for various purposes:
- To ensure that ground settlements caused by drawdown are small, this reducing the risk of damage to nearby structures.
- To avoid depletion of water resources when dewatering is carried out in aquifers used for water supply.
- To reduce environmental impacts on sensitive water-dependent features such as wetlands.
Groundwater Engineering provides complete artificial recharge solutions:
- Design of recharge systems
- Well drilling and installation
- Pumping and recharge tests
- Equipment sales and rental
- Monitoring systems
- On-site operation and maintenance