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