Welcome to Our 25th Anniversary Timeline!
So much has happened in the last 25 years. Take a look!

The Environmental Protection Agency recognizes the Delaware Estuary as an estuary of significance
Delaware Estuary becomes part of the EPA's National Estuary Program

Partnership for the Delaware Estuary officially incorporated as a non-profit organization

The Delaware Estuary Program publishes its first Comprehensive Conservation Management Plan (CCMP)

PDE moves into its first office at Bellevue State Park in Wilmington, Delaware, with help from DNREC

Artist Frank McShane creates first PDE logo

PDE holds its first Experience the Estuary Celebration at the Camden Aquarium.

PDE hosts the first Green City, Clean Waters drawing contest with the Philadelphia Water Department.
PDE moves offices to 9th and Orange Street in downtown Wilmington, Delaware

PDE celebrates its first Pennsylvania Coast Day (now the Delaware River Festival) at Fairmount Park in Philadelphia
PDE becomes the host of the Delaware Estuary Program

Delaware Bay Oyster Restoration Project and Profile Campaign launches/ 280,000 bushels of oyster shells planted the first year.

PDE offices move to current location by the Riverfront in Wilmington, Delaware

First Delaware Estuary Science & Environmental Summit is held. Brings together 248 people to talk science, environment, and restoration

Science and Technical Advisory Committee (STAC) for the Delaware Estuary forms to advise the National Estuary Program on emerging concerns and long-term health of the estuary's resources

PDE and Rutgers University apply for grant and design their first shellfish-based living shoreline for the Delaware Estuary, with help from New Jersey Department of Environmental Protection

Freshwater Mussel Recovery Program established. Learn more about it here

First mussel hatchery established in partnership with Cheyney University

PDE publishes its first State of the Estuary report. Click here to see.

PDE's first living shoreline project of the Delaware Estuary Living Shorelines Initiative is built outside of Bivalve, New Jersey. This is in partnership with the Rutgers University Haskin Shellfish Research Laboratory. Read more

First Technical Report for the Delaware Estuary River Basin published (revised every five years). Click here to see.
PDE becmes a member of the Delaware River Watershed Initiative

PDE begins oyster shell recycling program in New Castle County, Delaware

PDE opens freshwater mussel hatchery lab at Fairmount Water Works Educational Center in Philadelphia

PDE joins six partners on the Aquatic Research and Restoration Center (ARRC) memorandum of understanding. Lays the groundwork for a large-scale mussel hatchery. Read more

Delaware Estuary Program revises CCMP for the first time since original was published in 1996. Implementation of new CCMP announced. Read more.

We celebrating an addition to our living shoreline at the Lewes Canal in Delaware.

PDE celebrates its 25th anniversary