NYS Department of Environmental Conservation
Dredging-Yaphank Lakes
•Impact on
Target Plant Species- complete
control and eradication?
•Impact on
Native Plant Species- complete
control within treatment zone
•Impact on
Native Animal Species- substantial
loss within treatment zone
•Post-Treatment
Plant Coverage
–treatment zone none
–outside
treatment zone all
plants
future
loss of natives in deeper water
•Water quality
changes heavy turbidity
liberation
of sediment pollutants
•Ecological
impacts 2-3yr habitat
disruption in treatment zone
sedimentation
outside treatment zone
water
/ spoils area contamination?
other
unpredictable results?
•Downstream
impacts sedimentation,
turbidity
liberated
pollutants
•Potential for
regrowth low in treatment
area, delayed elsewhere
•Recreational
Impacts During Treatment significant
in zone, moderate outside
•Likelihood of
Suboptimal Results low