Watershed Connections and Drinking Water Saw Kill Watershed Community August 23, 2017
Water quality and pathways are changed by land use activities including: Soil, gravel Tree Water extraction removal withdrawals
The water we don’t see . . .
Wells and streams Under natural undisturbed conditions, groundwater discharges to a stream A well pump intercepts some of Rate of pumping 1 the groundwater that would have gone to the stream, and changes its flow direction Increased rate of pumping: Increased rate of pumping • intercepts groundwater before it reaches the stream • draws water from the stream to the well
A. Precipitation (air pollution) B. Seepage/ infiltration (vegetation, soils) Paths of C. Stormwater runoff contamination D. Surface water (downstream, seepage, flooding) E. Groundwater Direct “point” A sources (pipes, discharges) and other constructed C systems C B D E
Groundwater and stream connections ! “As development of land and water resources intensifies, it is increasingly apparent that development of either ground water or surface water affects the other.” -U.S. Geological Survey
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