This report card provides a transparent, timely, and geographically detailed assessment of Chesapeake Bay. In 2016, the report card includes five water quality indicators and two biotic indicators. In 2016, the overall grade for Chesapeake Bay is a 54%, a C. This means the Bay is in moderate health. Long term trends of each reporting region health and a fisheries index are also presented. For further details, visit the Report Card Website.

This report card provides a transparent, timely, and geographically detailed assessment of Chesapeake Bay. In 2015, the report card includes five water quality indicators and two biotic indicators. In 2015, the overall grade for Chesapeake Bay is a 53%, a C. This means the Bay is in moderate health. Long term trends of each reporting region health and a fisheries index are also presented. For further details, visit the Report Card website.

This report card provides a transparent, timely, and geographically detailed assessment of Chesapeake Bay. In 2014, the report card includes five water quality indicators and two biotic indicators. In 2014, the overall grade for Chesapeake Bay is a 50%, a C. This means the Bay is in moderate health. A fisheries index and climate change resilience index as well as trajectories of reporting region health are also presented. For further details, visit the Report Card website.

This report card provides a transparent, timely, and geographically detailed assessment of Chesapeake Bay. In 2013, the report card includes five water quality indicators and two biotic indicators. In 2013, the overall grade for Chesapeake Bay is a 45%, a C. This means the Bay is in moderate health. Fisheries indicators as well as trajectories of reporting region health are also presented. For further details, visit the Report Card website.

This report card provides a transparent, timely, and geographically detailed assessment of Chesapeake Bay. In 2012, the methods for the report card have changed to include five water quality indicators and two biotic indicators. In 2012, the overall grade for Chesapeake Bay is a 47%, a C. This means the Bay is in moderate health. Fisheries indicators as well as trajectories of reporting region health are also presented. For further details, visit the Report Card website .

Residents of the Chesapeake Bay watershed depend upon a healthy Bay for food, recreation, and commercial enterprises. But the ways in which we use the watershed’s lands—from driving our cars to spreading fertilizers—impact the health of the Bay’s waters. Wastewater treatment plants, agricultural operations, and urban runoff are major sources of the nitrogen, phosphorus, and sediment pollution that threaten the Bay’s health.

The Chesapeake Bay Program and its partners developed an improved stream health indicator that provides a regional assessment of benthic (bottom-dwelling) macroinvertebrate community health. Benthic data collected in different ways by various natural resource agencies were incorporated into a Benthic Index of Biotic Integrity that rates stream health across the entire 64,000 square miles of watershed that drain into Chesapeake Bay.