The northern portion of the Blaine Wetland Sanctuary has been designated as site 7 by regulatory agencies for the purpose of creating a wetland bank. Site 7 is the second wetland bank that was created in the Blaine Wetland Sanctuary. A wetland bank allows developers or other agencies to purchase wetland credits to offset impacts to wetlands in other areas.

In 2015, the City of Blaine contracted with Critical Connections Ecological Services to start the process of developing a restoration plan for the norther portion of the Blaine Wetland Sanctuary. This portion is approximately 180 acres of open space that will remain as open space forever. Restoration work started in 2017. Restoration work included the removal of invasive, non-native species. Methods used during restoration included, tree removal, prescribed burns, and targeted herbicide treatment. In 2020 the restoration work will turn to long term management of the site.

The money generated by the wetland bank will be used for maintaining and updating the city's parks, trails, and open spaces.