Hi I’m Sue a Resource Specialist with the Indiana State
Department of Agriculture, Division of Soil Conservation. I have worked for the
Division of Soil Conservation for 14 years serving the NW Central part of
Indiana. I graduated from Purdue University with a Bachelor’s Degree in Natural
Resources & Environmental Science, specializing in Aquatic Sciences.
With Soil & Water Conservation being the objective,
my position is charged with providing technical and educational services to the
local Soil & Water Conservation Districts, other units of government, and
landusers. One day I might find myself
surveying for a best management practice on a farm and the next, teaching a
group of students how to assess the health of their local waterbody. Conservation
work all starts with knowing your watershed and the health of your local
streams.
What is a watershed?
A watershed
is the total area of land that drains into a particular waterbody (wetland,
stream, river, lake, or sea).
Land uses and runoff in a watershed
determine the quality of surface water in smaller streams and waterways. They
can then influence the water quality of larger streams. For example, point
source discharges, urban runoff, runoff from landfills and runoff from
agricultural areas may contain sediments, organic material, nutrients, toxic substances,
bacteria or other contaminants. When these contaminants or pollutants are present
in significant concentrations, they may interfere with some stream uses. So it’s
important that watersheds be evaluated and assessed.
A tool used to evaluate watersheds:
ArcMap is the software
I use to delineate or define watershed boundaries and evaluate other parameters
for my projects. This software allows
multiple layers of information, such as, topographic data, soils types, landuse
data, and hydrology data to be merged together so the watershed could be assessed.
This software also helps me to analyze
various attributes of a watershed so that I can provide more specific recommendations
to my clients for implementation of various conservation practices. Practices
such as conservation tillage, grassed waterways, rain gardens, rain barrels, 2-stage
ditches, water & sediment control basins, vegetative filter strips all help
to keep our waterbodies clean.
Biological assessment of your local waterbody or stream?
Simple observations of benthic macroinvertebrate
presences can also be used to analyze the ecological health of bodies of water.
Benthic macroinvertebrates are animals
that are big enough (macro) to be seen with the naked eye. They lack backbones
(invertebrate) and live at least part of their lives in or on the bottom
(benthos) of a body of water.
Benthic macroinvertebrates
include aquatic insects (such as mayflies, stoneflies, caddisflies, midges,
beetles), snails, worms, freshwater clams, mussels, and crayfish. Some species are more tolerant of pollution, while others cannot
live where there is pollution.
It is easy for citizens to become involved in
ecological monitoring or participate in a stream clean-up of local water bodies.