The Chemours Company

Hay Road Landfill

Wilmington, Delaware, United States

Certified Silver through 2022

Project Name
Project Type
Cavity Nesters
Pollinator Area
About the Program
The Hay Road Landfill is located in northern Delaware near the Delaware River. Cells in the landfill are closed and require vegetative cover. Cell 4 is the location of the Grassland project, and consists of 7 acres. The Cavity Nesters project is within Cell 4, as is the Pollinator Area, which is 0.65 acres. Conservation objectives include enhancement of grassland habitat in order to improve native avian and pollinator populations.

Practices and Impacts
  • The team seeded a four-acre area of landfill cap with a mix of native grassland plant species and non-native cover crops in 2011 in order to provide additional grassland habitat for native avian species. Additional native plant species were planted 2018. The team annually monitors the grassland plant species present in the area. In 2020, the team observed the state-endangered American kestrel using the site, a tentative sign of the success of the project and importance of this habitat to the region.
  • To provide additional cavity nesting habitat for native birds, the team has maintained nine nest boxes on the site since 2019. The team monitors the nest boxes every two weeks until eggs appear, and then weekly until birds fledge during the nesting season. The team annually clean the boxes and utilize monitoring information to move the nest boxes to the areas of the site where they receive the highest use. In 2020, 25 tree swallow, 8 eastern bluebirds, and 4 Carolina wrens were fledged on site.
  • The team at Chemours also manage a 0.65-acre grassland area to enhance habitat for native pollinators. The team noted an existing grassland area on site contained plants important to pollinators, such as milkweeds, and in 2019 began using annual selective herbicide, mowing, and milkweed plantings to enhance its habitat characteristics for native pollinators. The team monitors the cover of plant species in the area several times per year during the growing season.