What is being done to ensure that the issue of aquatic invasive species does not escalate?
Hwy H2O partners are committed to ensuring the waterway is maintained and developed in a manner that is environmentally and ecologically responsible. Since ballast water carried by ocean-going vessels is one vector for the introduction of aquatic invasive species, requirements regarding ballast water management in the Great Lakes / Seaway System are among the most stringent in the world. Activities to address the introduction of new invasive species are occurring on international, national and state levels and the Great Lakes / St. Lawrence Seaway System has been on the forefront of this issue for many years. Pending the development of treatment technologies, exchanging any freshwater ballast for saltwater is recognized as the most effective method to deal with any organisms that may be present. Ballast with a salinity (salt content) of 30 ppt (parts per thousand) or more is considered evidence that the tanks have been adequately exchanged and provide a suitably harsh environment for a
