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Rights: Acknowledgement: Graeme Churchard, Creative Commons 2.0 Published 27 June 2017 Size: 15 MB

A spring discharges groundwater on the land surface because the natural flow of groundwater to the place exceeds the flow from it. Springs are ephemeral, discharging intermittently, or permanent, discharging constantly.

Acknowledgement: Graeme Churchard, Creative Commons 2.0