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Keywords: sediment


Trends in Nutrient and Suspended Solids at the FallLine of Five Tributaries to the Chesapeake Bay in Virginia, July 1988 through 1995 2000

Publication date: January 01, 1996 | Type of document: | Download: Electronic Version

The purpose of this report is to: 1) present flow-adjusted trends in nutrients and suspended solids for five major tributariesto Chesapeake Bay in Virginia near the Fall Line; 2) discuss possible factors that affect trends in water…

Trends and Status of Flow, Nutrients, and Sediment for Selected Nontidal Sites in the Chesapeake Bay Watershed(1985-1998) 2000

Publication date: January 01, 2000 | Type of document: | Download: Electronic Version

Data from 30 stream sites in nontidal portions of the Chesapeake Bay Watershed were analyzed tp dpcument annual nutrient and sediment loads and trends for the period 1985 through 1998 as part of an annual water-quality update for the…

The Effects of Nitrogen and Sediment Loadings on Water Quality in the Virginia Western Shore Tributaries o Chesapeake Bay 1998

Publication date: March 01, 1998 | Type of document: | Download: Electronic Version

The Rappahannock, York and James Rivers each exhibit response in their estuarine receiving waters to inputs at their fall lines.  However, these response are not identical in each of the rivers, nor are they identical to Patuxent River…

Data Report Hypoxia in the York River 1991

Publication date: May 01, 1993 | Type of document: | Download: Electronic Version

This data report describes field studies conducted during the summer of 1991 by the Virginia Institute of Marine Science (VIMS) when both the physical environment and the dissolved oxygen regime were monitored, with the objective of…

Factors Affecting Nutrient Trends in Major Rivers of the Chesapeake Bay Watershed 2000

Publication date: January 01, 2000 | Type of document: | Download: Electronic Version

The major factors affecting the trends were changes in nutrient sources and natural variations in streamflow.  The dominant source of nitrogen and phosphorus from 1985 to 1998 in six of the seven tributary basins to Chesapeake Bay was…

Monitoring 1984_A First Report from the Chesapeake Bay Program Monitoring Subcommittee 1984

Publication date: September 01, 1984 | Type of document: | Download: Electronic Version

This Monitoring program is designed to provide, initially, a sound "base-line" or characterization of the health of the Bay, which we can then use to document the response (hopefully improvement) of the system to the many abatement…

Maryland's Tributary Strategies for Nutrient Reduction_A Statewide Summary 1995

Publication date: March 01, 1995 | Type of document: | Download: Electronic Version

This document summarizes and synthesizes the Nutrient Reduction Strategies for Maryland's ten Tributary Strategy watersheds.  Each of the ten Strategies provides specific recommendations to achieve the 40% nutrient reduction goal.  The…

Ambient Toxicity Testing in Chesapeake Bay_Year 8 Report Part II 2000

Publication date: July 01, 2000 | Type of document: | Download: Electronic Version

Data presented in this report were collected during the eighth year of a research program designed to assess ambient toxicity of living resource habitats in Chesapeake Bay.  The goals of this study were to identify toxic ambient areas…

Perspectives on the Chesapeake Bay, 1990 Advances in Estuarine Sciences Part II 1990

Publication date: April 01, 1990 | Type of document: | Download: Electronic Version

As the Chesapeake Bay Program resolves some of the issues before it, other problems come to the forefront for consideration.  The 1983 Bay Agreement identified a small number of critical issues to be addressed.  The selection of these…

Chesapeake Bay Achieveing Nutrient and Sediment Reduction Goals in the Chesapeake Bay Part II 2011

Publication date: May 01, 2011 | Type of document:

In 2009, the EPA requested that the National Research Council (NRC) evaluate and provide advice on the CBP nutrient reduction program and strategy.  The EPA specifically directed NRC to evaluate the tracking of best management practice…

Achieveing Nutrient and Sediment Reduction Goals in the Chesapeake Bay Part I 2011

Publication date: May 04, 2011 | Type of document: | Download: Electronic Version

In 2009, the EPA requested that the National Research Council (NRC) evaluate and provide advice on the CBP nutrient reduction program and strategy.  The EPA specifically directed the NRC to evaluate the tracking of best management…

Synthesis of U.S. Geological Survey Science for the Chesapeake Bay Ecosystem and Implications for environmental Management 2007

Publication date: January 01, 2007 | Type of document: | Download: Electronic Version

The purpose of this report is to present a synthesis of the USGS Chesapeake Bay science related to this 2001-06 golas and provide implications for environmental management.  The report provides USGS findings that address the science…

Introduction to an Ecosystem 2001

Publication date: September 01, 2001 | Type of document: | Download: Electronic Version

The relentless encroachment of people threatens the ecological balance of the Bay.  More than 15 million people live, work and play in the watershed.  Each individual directly affects the Bay by adding waste, consuming resources and…

First Annual Progress Report under the Chesapeake Bay Agreement 1985

Publication date: December 01, 1985 | Type of document: | Download: Electronic Version

The Chesapeake Bay Program findings clearly indicated that the Bay is an ecosystem in decline.  The Bay's ecosystem is complex and difficult to understand, but some of the links between problems and their causes became clear in the…

Chesapeake Bay Estuary Program 1991 Annual Report

Publication date: January 01, 1991 | Type of document: | Download: Electronic Version

To reverse the precipitous decline in the Bay's resources, in 1983 the Governors of Maryland, Pennsylvania, and Virginia, along with the Nayor of the District of Columbia and the Chair of the Chesapeake Bay Commission signed the…

A Pilot Study for Ambient Toxicity Testing in Chesapeake Bay Year 3 Report 1994 Part II

Publication date: July 01, 1994 | Type of document: | Download: Electronic Version

This pilot study was designed to evaluate ambient toxicity in the Chesapeake Bay watershed by using a battery of water column and sediemtn toxicity tests.  A team of scientists from two Chesapeake Bay research laboratories worked…

Understanding "Lag Times" Affecting the Improvement of Water Quality in the Chesapeake 2005

Publication date: January 01, 2005 | Type of document: | Download: Electronic Version

Better quantifying the "lag time" between changes in nutrient and sediment sources in the Chesapeake Bay watershed and improvement in the Bay's water quality and submerged aquatic vegetation (SAV) is critical to help resource managers…

Chesapeake Bay Watershed Assistance Network Access to Federal Funds

Publication date: March 01, 2007 | Type of document: | Download: Electronic Version

In its 2005 Directive, "Meeting the Nutrient and Sediment Goals-Next steps", the first Chesapeake Bay Federal Principals meeting was held on October 7, 2005.  At that meeting, high level federal representatives, supported by the…

Achieving Nutrient and Sediment Reduction Goals in the Chesapeake Bay 2011

Publication date: March 01, 2011 | Type of document: | Download: Electronic Version

The Chesapeake Bay Program (CBP), a partnership among the U.S. Environmental Protection Agency, the six watershed states, and the District of Columbia, is working at federal, state, and local levels to restore the Chesapeake Bay…

Submerged Aquatic Vegetation Water Quality and Habitat-based Requirements and Restoration Targets 2000

Publication date: December 01, 2000 | Type of document: | Download: Electronic Version

The loss of submerged aquatic vegetation, or SAV, from shallow waters of Chesapeake Bay, which was first noted in the early 1960's, is a widespread, well-documented problem.  Although other factors such as climatic events and herbicide…

Progress to Improve Water Quality Conditions in Rock Creek Estuary, Anne Arundel County, Maryland 1990

Publication date: January 01, 1990 | Type of document: | Download: Electronic Version

Rock Creek is a 3-mile, 873 acre estuary in northern Anne Arundel County, Maryland (Figure 1).  It is a tributary to the Patapsco River, just upstream from the river's mouth of the Chesapeake Bay.  Rock Creek's watershed encompasses…

EPA Chesapeake Bay Program Resource Users Management Team_Final Report and Recommendations Fall 1983

Publication date: September 01, 1983 | Type of document: | Download: Electronic Version

The primary message which RUMT hopes this report will convey is that there is now ample evidence that the Bay system is in decline.  Based on this evidence, RUMT supports specific policies to reverse that decline.  RUMT has concluded…

Anacostia Ecosystem Initiative 1999

Publication date: April 01, 1990 | Type of document: | Download: Electronic Version

Origins of the project - EPA Region III's direct and active involvement in the Anacostia began with its 1992 Report tp Congress.  Official kick-off of the Anacostia Ecosystem Initiative occurred in 1994 and followed a White House task…

Chesapeake Bay_A Profile of Environmental Change 1983

Publication date: September 01, 1983 | Type of document: | Download: Electronic Version

Usiing segmentation to look at water quality is not new.  Planning agencies for the Great Lakes divided the lakes into zones with similar nutrient and chlorophylla levels to monitor eutrophication.  To locate acceptiable sites for…

Chesapeake Bay A Profile of Environmental Change 1983

Publication date: September 01, 1983 | Type of document: | Download: Electronic Version

This report describes trends in water and sediment qualitty, and in the living resources of Chesapeake Bay.  The water quality parrameters evaluated include nutrients, dissolve oxygen, organic chemical compounds, and heavy metals.  The…

Distribution of Submerged Aquatic Vegetation in Chesapeake Bay and Tributaries_1984

Publication date: August 01, 1987 | Type of document: | Download: Electronic Version

Interest in Chesapeake Bay SAV communities by scientists, resource managers and the public has been very high because of the significant reductions of SAV in many areas compared to luxrious stands that once prevailed less than 20 years…

The Effect of pH on the Release of Phosphorus from Potomac River Sediment 1987

Publication date: November 01, 1987 | Type of document: | Download: Electronic Version

Recurring algal blooms in the tidal freshwater portion of the Potomac River indicate an association between chlorophyll a, high phosphorus concentrations, and high pH of the water.  In the present study, the relase of phosphorus from…

Achieving a Toxics Free Bay_The role of Point Sources_1999

Publication date: June 22, 1999 | Type of document: | Download: Electronic Version

The first in the series of critical issues forums:  Achieving a Toxics Free Bay-theRole of Point Sources was held on June 22, 1999 at the Top of Bay Officer's Club in Aberdeen Proving Ground, Maryland.  The purpose of the forum was to…

A Pilot Study for Ambient Toxicity Testing in Chesapeake Bay-Volume I

Publication date: April 01, 1991 | Type of document: | Download: Electronic Version

this pilot study was designed to evaluate ambient toxicity in the Chesapeake Bay watershed by using a battery of water column, sediment and suborganismal tests.  to complete this ambitious goal, a team of scientists from three…

Submerged Aquaticc Vegetation Policy for the Chesapeake Bay and Tidal Tributaries

Publication date: July 01, 1989 | Type of document: | Download: Electronic Version

Submerged aquatic vegetation is not only important as a habitat, but also because it acts as an indicator of the condition of the Chesapeake Bay.  The successful growth and reporduction of submerged aquatic vegetation can be used a s…

Synthesis of Nutrient and Sediment Data for Watersheds Within the Chesapeake Bay Drainage Basin

Publication date: January 01, 1995 | Type of document: | Download: Electronic Version

Nutrient and sediment data collected by Federal and state agencies from 1972 through 1992 at 1,058 surface-water sites  in nontidal parts of the Chesapeake Bay Basin were compiled into a large database.  Adequate nutrient, sediment and…

An Introduction to Sedimentsheds: Sediment and its Relationship to Chesapeake Bay Water Clarity

Publication date: January 30, 2002 | Type of document: | Download: Electronic Version

On January 30-31, 2007 the Chesapeake Bay Program's (CBP) Sediment Workgroup and the CBP's Science and Technical Advisory Committee convened a workship titled:  "An Introduction to Sedimentsheds: Sediment and its Relationship to…

Best Management Practices for Sediment Control and Water Clarity Enhancement_2006

Publication date: October 01, 2006 | Type of document:

Sediment controls, clarity enhancement practices and our understanind of sediment processes have advanced since the workshop.  For instance, although workshop discussion placed some emphasis on emerging nonstructural/living shoreline…

The State of the Chesapeake Bay_1999

Publication date: October 01, 1999 | Type of document: | Download: Electronic Version

The 1995 Local Government Partnership Initiative engages the watershed's 1,650 local governments in the Bay restoration effort.  The Executive Council followed this in 1996 by adopting the Local Government Participation Action Plan and…

Baywide Nutrient Reduction Strategy Progress Report

Publication date: December 01, 1989 | Type of document: | Download: Electronic Version

In 1988, the Water Quality Task Group developed the Basinwide Nutrient Reduction Strategy.  The straegy.  The strategy describes state point and nonpoint source (NPS) programs designed to meet the agreement goal of reducing nutrient…

Chesapeake Bay Introduction to an Ecosystem

Publication date: April 01, 1995 | Type of document: | Download: Electronic Version

The Chesapeake Bay receives about half its water volume fro the Atlantic Ocean.  The rest drains into the Bay from an enormous 64,000 square-mile drainage basin or watershed.  The watershed includes parts of New York, Pennsylvania, West…

Status Yields and Trends of Nutrients and Sediment and Methods of Analysis for the Nontidal Data-Collection Programs, Chesapeake Bay Basin 1985-96

Publication date: January 01, 1998 | Type of document: | Download: Electronic Version

Data from more than 200 sites in nontidal portions of the Chesapeake Bay were compiled to document annual nutrient and sediment loads and trends for the period 1985 throgh 1996 as part of the 1997 Reevaluation of the Chesapeake Bay…

An Introduction to Sedimentsheds

Publication date: May 01, 2007 | Type of document: | Download: Electronic Version

The Chesapeake Bay Program's Sediment workgroup was assigned the task of developing sedimentsheds.  The purpose of tje sedimentsheds is that they would be applied to determine the source of sediment that is contributing to water clarity…

Targeting Toxics: A Characterization Report A Tool for Directing Management & Monitoring Actions in the Chesapeake Bay's Tidal Rivers

Publication date: June 01, 1999 | Type of document: | Download: Electronic Version

Chemical contamination in water, sediment and/or in animal tissue us an importaant issue for peiople everywhere.  In the Chesapeake Bay region, scientists and managers have been carrying out a multi-step effort assess the Bay's tidal…

Synthesis of Nutrient and Sediment Data for Watersheds Within the Chesapeake Bay Drainage Basin

Publication date: January 01, 1995 | Type of document: | Download: Electronic Version

Nutrient and sediment data collected by Federal and state agencies from 9172 through 1992 at 1,058 surface-water sites in nontidal parts of the Chesapeake Bay Basin were compiled into a large database.  Adequate nutrient, sediment and…

Evaluating Nutrient and Sediment Losses from Agricultural Lands: Vegetative Filter Strips

Publication date: August 01, 1987 | Type of document: | Download: Electronic Version

This report is part of a bi-state reserach effort funded by the EPA Chesapeake Bay Program between the states of Maryland and Virginia.  This report describes the Virginia project.  The Maryland project is described in another…

Chesapeake Bay Revised Basinwide Toxics Reduction Strategy Commitments Evaluation

Publication date: July 14, 1994 | Type of document:

The commitments are organized under four areas of emphasis-pollution prevention, regulatory program implementation, regional facus, and directed toxics assessments.  Stakeholder unput was sought on how the commitments met four basic…

Baywide Nutrient Reduction Strategy Progress Report-1989

Publication date: December 01, 1989 | Type of document:

This first progress report under the 1988  Baywiden Nutrient Reduction Strategy describes implementation progress and analytic refinements promised in the original strategy.  The Nonpoint Source Subcommittee NPS Nutrient Reduction Task…

Using the Sediment Quality Triad to Characterize Toxic Conditions in the Chesapeake bay (1999)

Publication date: January 01, 2015 | Type of document:

This study, a collaborative effort between the U.S. Fish and Wildlife Service, Chesapeake Bay Field Office, the University of Maryland Wye Research and Education Center and the Academy of Natural Sciences Patrick Center, involved…

An Introduction to Sedimentsheds_Sediment and Its Relationship to Chesapeake Bay Water Clarity

Publication date: July 01, 2002 | Type of document:

Sedimentshed is a new concept, and is defined as the area that contributes the sediment which directly influences water clarity in near-shore Submerged Aquatic Vegetation (SAV) grow zones.  The goals of this report is *to provide a…

Press Backgrounder: Small Watershed Grants (SWG) and Innovative Nutrient and Sediment Reduction (INSR) Grants (2013)

Publication date: | Type of document: Backgrounder | Download: Electronic Version

Forty projects in the Chesapeake Bay watershed received $9.2 million in grants from the Chesapeake Bay Stewardship Fund, which is administered by the National Fish and Wildlife Foundation (NFWF).

The Small Watershed Grants (SWG)…

The Conowingo Dam and Chesapeake Bay Water Quality

Publication date: January 15, 2013 | Type of document: Backgrounder | Download: Electronic Version

Each year, the Susquehanna River provides the Bay with one-quarter of its sediment loads. Working to curb these loads are three large reservoirs located along the lower portion of the river, each of which sits behind a dam. These…

Map: 2012 Innovative Nutrient and Sediment Reduction Grants (PDF)

Publication date: August 28, 2012 | Type of document: Backgrounder | Download: Electronic Version

The funding was provided through the Chesapeake Bay Stewardship Fund, which awards competitive grants of up to $1 million to projects that demonstrate innovative and cost-effective approaches to dramatically reduce or eliminate…

Press Backgrounder: Small Watershed Grants (SWG) and Innovative Nutrient and Sediment Reduction (INSR) Grants (2012)

Publication date: August 28, 2012 | Type of document: Backgrounder | Download: Electronic Version

Forty-one projects in the Chesapeake Bay watershed received $9.22 million in grants from the Chesapeake Bay Stewardship Fund, which is administered by the National Fish and Wildlife Foundation (NFWF).

The Small Watershed Grants (SWG)…

Map: 2010 Innovative Nutrient and Sediment Reduction Grants (PDF)

Publication date: August 05, 2010 | Type of document: | Download: Electronic Version

2010 Innovative Nutrient and Sediment Reduction Grants map (PDF)

2010 Innovative Nutrient and Sediment Reduction Grants Awardees and Projects

Publication date: August 05, 2010 | Type of document: | Download: Electronic Version

2010 Innovative Nutrient and Sediment Reduction Grants Awardees and Projects backgrounder

River Flow, Long-term Trends and Stream Health In the Chesapeake Bay Watershed

Publication date: May 09, 2011 | Type of document: Backgrounder | Download: Electronic Version

Backgrounder: River Flow, Long-term Trends and Stream Health In the Chesapeake Bay Watershed



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