The U.S. Gas site in Staten Island, N.Y. Harbor. of an overall harbor improvement program. enhancement, and restoration of aquatic, wetland, and upland habitat. capping of existing brownfields and landfills in the region. restoration and protection. deepening. that may produce unavoidable environmental impacts," Polo said. grading and planting of native wetland species. fish and wildlife. residents. grading and replanting of approximately 14 acres. disposal of soils. desirable species for the site, such as various Spartina grass. other plantings. and replanting of around nine acres. the growth of Spartina grass, and the limited placement of clean soil. o 196,891 square feet of Spartina Alterniflora in the low marsh area. o 4,175 square feet of shrubs in the high marsh area.