Publications

This is a report on trends in phosphorus, nitrogen, secchi depths and dissolved oxygen in Chesapeake Bay for the years 1984-1992

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In accordance with the requirements of the Clean Water Act (CWA) and the goals of the Chesapeake 2000 agreement, this paper describes an approach that the US Environmental Protection Agency Regions II and III (EPA) and Chesapeake Bay partner jurisdictions will take to develop and issue appropriate National Pollutant Discharge Elimination System (NPDES) permits for significant point source discharges of nutrients to the Chesapeake Bay watershed. EPA�s Bay partner jurisdictions consist of the States of New York (NY), Pennsylvania (PA), Maryland (MD), Delaware (DE), Virginia (VA) and West Virginia (WV), and the District of Columbia (DC).

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This project was initiated on June 1, 1995 for the purpose of stimulating efforts towards the reduction of point source nutrient discharges to the waters of the Chesapeake Bay Water. The primary emphasis of the BNR retrofit recommendations was to be enhancement of nitrogen removal, but would include biological phosphorus removal if deemed economically favorable

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This report is the third in a series in which the Chesapeake Bay Environment Model Package was used to assess the environmental benefits of oyster restoration in the Chesapeake Bay. Here, the effects of oyster restoration to all potential Virginia oyster habitat were investigated.

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Sediment is the third biggest pollutant to the Bay and its tributaries. Tidal sediment comprises approximately 57% of the sediment load to the Bay. Excess sediment is a key contributor to degraded water clarity and damages critical habitats (e.g. SAV beds and oyster bars) and living resources (shellfish, finfish and waterfowl). This report provides information on important tidal sediment processes and factors to consider before undertaking shoreline management actions to reduce tidal sediment loads. It provides maps and other general data to help target problem areas and identify valuable living resources where sediment reduction activities could help improve water clarity.

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The primary purpose of this analysis is to determine whether selected lateral and mid-Bay stations in the Chesapeake Bay mainstem have the same overall levels of certain water quality parameters.

Documents the findings of the two-year information gathering process of the strategy reevaluation but also recommends an approach for undertaking future toxics reduction and prevention actions in the Bay watershed.

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This work contains the following themes as they relate to the Chesapeake Bay: The Living Natural Bay/Ecosystems, Environmental Stewardship and Sustainability of the Bay/Stewardship .

This study was undertaken to compare results obtained with standard and alternative, new techniques for total nitrogen and chlorophyll determination in estuarine water samples.

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This document contains the method of producing both the Chesapeake Bay Program Land Use and the Phase 4.2 Watershed Model Landuse. It also documents the hindcasting & forecasting of model land use, the development of model segmentation, and model linkages.

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