Good and bad things of groundwater

Good: Groundwater is a reliable source of water, especially in areas where surface water is scarce or unreliable. It is often of high quality and requires less treatment than surface water. Groundwater can be a useful buffer against drought, as it can be pumped during dry periods. It can be a useful supplement to surface water resources. Bad: Over-pumping of groundwater can lead to groundwater depletion and land subsidence. Contamination of groundwater can be difficult and expensive to clean up....

원문링크 : Good and bad things of groundwater