ANNAPOLIS, MD â€“ Gov. Tom Corbett joined executives from Maryland, Delaware, and other states to sign the latest Chesapeake Bay Agreement. The signing took place at the Chesapeake Bay Executive Council Meeting, an annual gathering that promotes cooperative partnership between the states in the Chesapeake Bay Watershed. Goals in the agreement address sustainable fisheries, vital habitats, water quality, toxic contaminants, healthy watersheds, stewardship, land conservation, and public access. Since 1985, PA farms have reduced nitrogen pollution by over 13 million pounds per year. Pennsylvania has reduced phosphorous loadings by 25% and sediment by 15%.