Executive Summary and Appendices

The Chesapeake Bay TMDL contains Appendices A through X as well as the Agency's responses to comments during the 45- day comment period. Click below to read the Appendices and Responses to Public comments.

• Appendix A — Chesapeake Bay TMDL Contributors (14pg, 185K)
• Appendix B — Index of Documents Supporting the Chesapeake Bay TMDL (41pg, 312K)
• Appendix C — Record of Chesapeake Bay TMDL-Related Chesapeake Bay Program Committee, Team and Workgroup and Partner/Stakeholder Meetings (33pg, 402K)
• Appendix D — Evaluation of the Most Protective Chesapeake Bay Dissolved Oxygen Criteria (5pg, 250K)
• Appendix E — Summary of Initial Climate Change Impacts on the Chesapeake Bay Watershed Flows and Loads (4pg, 173K)
• Appendix F — Determination of the Hydrologic Period for Model Application (6pg, 293K)
• Appendix G — Determination of Critical Conditions for the Chesapeake Bay Total Maximum Daily Load (TMDL) (22pg, 449K)
• Appendix H — Criteria Assessment Procedures using Model Scenario Output with Bay Monitoring Data (4pg, 248K)
• Appendix I — Documentation of the Reduced Sensitivity to Load Reductions at Low Nonattainment Percentages (14pg, 351K)
• Appendix J — Key Chesapeake bay TMDL Reference and management Model Scenarios; Definitions and Descriptions (19pg, 350K)
• Appendix K — Allocation Methodology for Relating Relative Impact to Needed Controls (8pg, 236K)
• Appendix L — Setting the Chesapeake Bay Atmospheric Nitrogen Deposition Allocations (28pg, 1.5M)
• Appendix M — Chesapeake Bay Water Quality/Sediment Transport Model Management Scenario Attainment Assessment Results and 2008 303(d) Chesapeake Bay List Assessment Results (includes the following tables) (3pg, 234K)
• Appendix M1 — Chesapeake Bay Dissolved Oxygen Criteria Assessment Results(438K)
• Appendix M2 — Chesapeake Bay Chlorophyll a Criteria Assessment Results(59K)
• Appendix M3 — Chesapeake Bay Water Clarity/SAV Criteria Attainment Results(31K)
• Appendix M4 — Chesapeake Bay Segments 2008 303d List Assessment Results(184K)
• Appendix N — Resolution of Segments Failing to Attain the Jurisdictions Water Quality Standards (25pg, 2.9M)
• Appendix O — Setting the Chlorophyll a Criteria-Based Nutrient Allocations For James River Watershed (8pg, 1M)
• Appendix P — Setting the SAV/Water Clarity Criteria-Based Sediment Allocations (9pg, 598K)
• Appendix P1— SAV Coverage 1971-2009 (64K)
• Appendix Q Detailed Annual Chesapeake Bay TMDL WLAs and LAs(7.7M)
• Appendix R — Daily Chesapeake Bay TMDL WLAs and LAs(7.8M)
• Appendix S — Offsets for New or Increased Loadings of Nitrogen, Phosphorus and Sediment to the Chesapeake Bay Watershed (6pg, 191K)
• Appendix T — Sediments behind the Susquehanna Dams Technical Documentation (6pg, 216K)
• Appendix U — Accounting for the Benefits of Filter Feeder Restoration Technical Documentation (5pg, 153K)
• Appendix V — Best Management Practice BMP Implementation Rate(53K)
• Appendix W — Response to Comments - Click below
• Appendix X — Staged Implementation Approach for Wastewater Treatment Facilities in the Virginia James River Basin (2pg, 147K)

The release of the draft Chesapeake Bay TMDL on September 24, 2010 began a 45-day public comment period that concluded on November 8, 2010. In response to the TMDL, EPA received more than 14,000 written submissions – most of which were in support of the TMDL.

View the Agency’s responses to public comments

Responses to Public Comments on the Draft Chesapeake Bay TMDL - Part 1 (PDF) (1418pg, 10.6M)
Responses to Public Comments on the Draft Chesapeake Bay TMDL - Part 2 (PDF) (1732pg, 5.4M)