Veracruz, Mexico

Runoff entering a large sinkhole

SINKING STREAMS

El Rio Caha-Bon, Guatemala

•Water directly recharges aquifer

•are very susceptible to rapid contamination of large aquifers

•Seco Creek Sinkhole

Once underground, water moves rapidly, with minimal filtration, through large passage-ways in the limestone.

SPRINGS

• Where the water table meets the surface