The Canal Maintenance Division is responsible for keeping
the waterways and lakes free of debris and aquatic plants.
The division has developed a schedule and a system to control
the spread of aquatic plants. The employees of this division
use mechanical, biological, and chemical means to keep the
waterways and canals free from aquatic plants and trash.
The employees use the mechanical means to remove trash and
debris from the waterways and lakes. The chemical means are
used to control the growth and spreading of aquatic plants.
Below is a chart of the types of chemicals that the Canal
Maintenance Division uses and what they treat. The biological
means are the use of triploid grass carp introduced into the
waterways and lakes throughout the city. The division introduced
3,000 triploid grass carp in 1988. The triploid grass carp
feed off the submersed aquatic plants that grow in the waterway
and lakes. By using these three methods the appearance and
effectiveness of the waterway system will benefit greatly.
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