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Chesapeake Bay TMDL

EPA Oversight of Watershed Implementation Plans (WIPs) and Milestones in the Chesapeake Bay Watershed

The TMDL is being implemented using an accountability framework that guides restoration efforts using four elements. These elements include Watershed Implementation Plans (WIPs), two-year milestones, EPA’s tracking and assessment of restoration progress and, as necessary, specific federal actions if the Bay states do not meet their commitments. Bay states include Delaware, Maryland, New York, Pennsylvania, Virginia, West Virginia and the District of Columbia.

Under the accountability framework, EPA committed to conduct ongoing oversight of Bay states' programs to ensure they are on track to meet the goals of their WIPs and two-year milestones.

EPA Evaluations - Federal Actions - Program Contacts

EPA Evaluations

EPA Evaluation of New York’s Draft Amended Phase III WIP -EPA received and evaluated a draft amended Phase III Watershed Implementation Plan (WIP) from New York to meet the 2025 nitrogen target.

EPA assesses milestone progress and future commitments– EPA provided its final evaluations of progress toward meeting the 2018-2019 milestones and of the 2020-2021 milestone commitments to the seven Chesapeake Bay states and the federal agencies.  The Chesapeake Bay Program partnership committed to have all practices and controls in place by 2025 to achieve applicable water quality standards for dissolved oxygen, water clarity/submerged aquatic vegetation and chlorophyll-a.  Since 2012, the seven states and the federal agencies have established short-term goals, called two-year milestones, to help achieve the 2025 goal.

To get answers to state-specific questions, please visit your state's website or contact the state lead.

Click on the links below to view the detailed evaluations for the Bay states and federal agencies.

EPA Final Evaluation of 2018-2019 Milestone Progress and 2020-2021 Milestone Commitments

EPA Evaluation of 2019 Final Phase III WIPs

EPA Evaluation of 2019 Draft Phase III WIPs

EPA Final Evaluation of 2016-2017 Milestone and Midpoint Progress and 2018-2019 Milestone Commitments

EPA Interim Evaluation of 2016-2017 Milestone Progress

EPA Final Evaluation of 2014-2015 Milestone Progress and 2016-2017 Milestone Commitments

EPA Interim Evaluation of 2014-2015 Milestone Progress

EPA Final Evaluation of 2012-2013 Milestone Progress and 2014-2015 Milestone Commitments

EPA Interim Evaluation of 2012-2013 Milestone Progress

EPA Evaluation of Final 2012-2013 Milestones Commitments and Phase II WIPs

EPA Evaluation of Phase I WIPs

2009-11 Milestones to Reduce Nitrogen and Phosphorus - Assessment June 2012 (PDF)Exit(14 pp, 1.5 M, About PDF)

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