Setting the Course for I dW t Q lit Improved Water Quality Hydrology in Watershed Systems Systems Photo by Don Berger Minnesota Pollution Control Agency Session 5A: A TMDL training program for local government leaders and other water resource managers wq-iw3-55a
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Setting the Course for Improved Water Quality: Hydrology ... · PDF fileBi iil fhdl o l Agen Basic principles of hydrology Sources and pathways of Contr ... chemical, biological processes
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Setting the Course for I d W t Q litImproved Water Quality
Hydrology in y gyWatershed SystemsSystems
Photo by Don Berger Minnesota Pollution Control AgencySession 5A: A TMDL training program for local government leaders g p g f g
and other water resource managers wq-iw3-55a
Hydrology is one of many disciplines i l d i TMDL t di
cy
involved in TMDL studies
ol A
genc
Con
tro Biology
Pol
lutio
n
S i l
esot
a P Social
sciencesWater chemistry
Min
ne
In this presentationcy
In this presentation
B i i i l f h d l
ol A
genc Basic principles of hydrology
Sources and pathways of
Con
tro Sources and pathways of flow in watersheds
Pol
lutio
n
Importance of hydrology to TMDL studies and water
esot
a P quality management
Min
ne
Watersheds integrate physical, h i l bi l i l
cy
chemical, biological processes
A watershed is an area
ol A
genc A watershed is an area
of land that drains to a common pointTMDL t di
Con
tro TMDL studies use watersheds as the biophysical basis for
Pol
lutio
n
p ywater quality planning and managementWatersheds integrate
esot
a P Watersheds integrate
physical, chemical and biologicalprocesses
Min
ne processes
cyol
Age
nc
This module
Con
tro focuses on watershed
Pol
lutio
n hydrology
esot
a P
Min
ne
What is “hydrology?”cy
What is hydrology?ol
Age
nc
“The study of water in all its forms (liquid gas
Con
tro
all its forms (liquid, gas, and solid) on, in and
over the land areas of
Pol
lutio
n the earth” – Michigan DEQ
esot
a P
Hydrology is important at a global regional or watershed scale
Min
ne Hydrology is important at a global, regional or watershed scale
Hydrologic processes affect water lit
cy
quality
ol A
genc
The movement of surface and
Con
tro groundwater results in the transport and
delivery of pollutants
Pol
lutio
n delivery of pollutants to waterbodies
esot
a P
Min
ne
The hydrologic cyclecy
The hydrologic cycle ol
Age
nc C
ontro
Pol
lutio
nes
ota
PM
inne
c/o US EPA
Why is hydrology important to TMDL t di ?
cy
TMDL studies?
Hydrology is critical to
ol A
genc Before we can manage
an impaired waterbody, we must understand
Hydrology is critical to understanding the sources and movement
Con
tro we must understand watershed hydrology of water (and pollutants)
to a waterbody
Pol
lutio
n
Addressing water quality problems in water bodies will require addressing hydrologic pathways