Notes
Outline
Water Education
Jon F. Bartholic
Institute of Water Research
Sponsored By
Michigan State University Extension
February 8, 2001
7:00 p.m.
Topics of Discussion
Water Cycle
Withdrawal Potential
Discussion
Water Cycle
Rainfall
Water loss to atmosphere (evaporation)
Runoff and recharge to groundwater
Water budget
Water Cycle
Components
of the
Water Cycle
Groundwater Close up
Glacial Drift
What is a Watershed?
Groundwater Drawdown
(Natural conditions)
Groundwater Drawdown
 (Affected by pumping)
Magnitude of Water Cycle Components
Rainfall Yearly Average
Annual Rainfall
30” – 34”
Assume 33”
Water Loss to Air
(Evaporation)
Grains
Evaporation
22” with deep rooted Perennials
20” with cold season grasses
USGS Recharge Map
USGS Recharge Map
Recharge
10” to 16”
Assume 13”
Water Runoff
Withdrawal Potential
Impact on groundwater
Other impacts
Mitigating possibilities
Mecosta
Water Plant Withdraw
500 gal/min x min x hrs x days/yr
Annually over 1 sq mile/640 acres
1.2”/year drawdown/yr
Mecosta County
Aerial Photo
Osceola County
 Aerial Photo
Mitigating Possibilities
22” E  evaporation from deep rooted annuals
To
20” E from cold season grass
Yields 2”/year more recharge
Mecosta – Osceola Counties
Summary
Water Cycle
Magnitude of Components
Withdrawal Implication’s
Water Management
Mitigation Options
Discussion
Short two minute question/answer/comment
Thanks
for
Caring and Acting
to
Sustain
the
Water Resources