Declining Streamflow Due to Diminished Groundwater Recharge

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Pre-Dev.

Post-Dev

Base Flow

Copyright 2000, Center for Watershed Protection

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This graph compares pre-development and post-development hydrographs to illustrate the decline in baseflow that results from a decrease in groundwater recharge. The hydrograph peak is much higher in the post-development scenario due to the increase in direct inputs to the stream from surface runoff.