Garnet Abrams
Faculty Advisor: Dr. Eileen Zerba
Princeton Environmental Institute
Summer 2010
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Nutrients – Nitrogen and Phosphorous
YSI – Temperature, pH, salinity, turbidity, dissolved O2,
chlorophyll, and blue-green algae
Primary inputs – Stony Brook and Millstone River
Smaller inputs – Elm Stream, Washington Stream, storm
drain networks
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Dillon pool filters backwashed into Elm Stream and Lake
Carnegie
Chlorine tolerance of different species
Installation of UV filtration system will reduce chlorine
concentrations in backwash
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Construction of new
chemistry and
neuroscience buildings
alters nutrient levels and
turbidity
Urban watershed results
in quick and high flood
peaks. Also increases
pollution stored in and
on the ground that is
concentrated in initial
rain events
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Primary objective to redirect the stream from undercutting
Washington Road
Secondary to build a healthier environment that will be
better able to filter pollutants and recycle the high nutrients
into the ecosystems instead of concentrating in Lake
Carnegie
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Adding meanders lengthens stream and slows current
Diversifying ecology
Altering streambed to incorporate more step-pools
Blue – bedrock
Green – boulders
Yellow – mixed large gravel and
boulders
Orange – mixed sand and large
gravel
Red Lines - Undercutting
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Current streambed is
unstable in a state of
transition and
reconfiguring its floodplain
Upper narrow, steep, and
straight run extreme focus
of restoration