Chesapeake Bay TMDL

The Chesapeake Bay Total Maximum Daily Load (TMDL) is a federal "pollution diet" to restore the Chesapeake Bay and its vast network of streams, creeks and rivers.

Tree leaves emerge from the top of a protective tree tube, just one of hundreds planted on a stretch of stream winding through a community park.
Young trees planted along East Branch Octoraro Creek in Lancaster County, Pennsylvania, will improve stream health and prevent the type of nutrient and sediment pollution that is the basis of the Total Maximum Daily Load (TMDL). (Photo by Will Parson/Chesapeake Bay Program)