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Keywords: water quality


Conserving Chesapeake Landscape; Protecting Our Investments, Securing Future Progress

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

On June 28, 2000, the Chesapeake Executive Council signed a new agreement for the restoration of the Bay, entitled Chesapeake 2000.  Unprecedented in scope and complexity, the new accord called for a range of actions, most with specific…

Chesapeake Bay WaterColumn Contaminants Critical Issue Forum Proceedings

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

Rich Batiuk, EPA, Chesapeake Bay Program Office, described the objectives of the critical issues forum, the questions posed to the forum participants by the Toxics Subcommittee, and the process for incorporating forum findings into the…

Chesapeake Bay Nutrient Reduction Progress and Future Directions 1997

Publication date: October 01, 1997 | Type of document: | Download: Electronic Version

Since 1983, the Chesapeake Bay Program has been working in cooperation with local governments, industry, farmers, environmentalists, conservation associations, citizen groups, and others throughout the Bay region to restore the water…

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…

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…

Maryland Water Quality Inventory 1986

Publication date: April 15, 1986 | Type of document: | Download: Electronic Version

The Patuxent River has been a major focal point for water quality management in Maryland for well over a decade.  As the Baltimore and Washington, D.C. metropolitan areas have encroached on the Patuxent watershed, long-time residents…

The Second Progress Report under the 1987 Chesapeake Bay Agreement 1989

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

This Second Progress Report attemtps to track at least some of those ripples.  It describes major efforts under way which contribute to the restoration of the Bay, though their cumulative effects are not yest fully defined.  The task of…

Policy and Program Re commendations for the Chesapeake Bay 1983

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

This report fulfills the last of the assignmen ts given to the U.S. Environmental Protection Agency by Congress in 1976 when funds were apprpriated to establish the Chesapeake Bay Program.  The final Congressional directive asked for…

Governing Chesapeake Waters A History of Water Quality Controls on Chesapeake Bay 1607-1972_1981

Publication date: October 01, 1981 | Type of document: | Download: Electronic Version

This report has relied primarily on written sourcwes.  Those providing most fruitful have been the annual reports of various state agencies, the occasional reports of study commissions and blue ribbon panels, and the coes, statutes, and…

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…

Baywide Nutrient Reduction Strategy 1990 Progress Report 1991

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

In response to the 1987 Chesapeake Bay Agreement, the Chesapeake Bay jurisdictions, working through a Water Quality Task Group, developed the Baywide Nutrient Reduction Strategy (Chesapeake Bay Program, 1988a) for reducing nutrients…

Comparison of Mid-Bay and Lateral Station Water Quality Data in the Chesapeake Bay Mainstem 1993

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

Seasonal median water quality values were compared between stations in mid-Bay and lateral regions in seven east-west transects in the mainstem Chesapeake Bay.  Comparisons were made over seven years, 1985-1991, for April-October…

Chesapeake Bay Program Nutrient Reduction Strategy Reevaluation Rept #8 1992

Publication date: December 01, 1992 | Type of document:

this report is one of a series of reports prepared for the Chesapeake Bay Program Reevaluation of the Nutrient Reduction Strategy.  This report provides information on the financial cost effectiveness and nutrient removal effectiveness…

Chesapeake Bay Basin Monitoring Program Atlas _Voulme II 1989

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

To monitor the bacteriological quality of Maryland's shellfish harvesting waters to assure adequate public health protection from shelstock unsafe for human consumption.  To assist in the identification and elimination of pollution…

Chesapeake Bay and its Tributaries_Results of Monitoring Programs and Status of Resources 1998

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

This  report is part of Virginia's ongoing effort to measure progress toward Bay restoration and to assess the quality of Virginia's rivers and streams.  The information in this report offers an insight into the monitoring of our waters…

A Report to the Citizens of the Bay Region 2008

Publication date: March 01, 2008 | Type of document: | Download: Electronic Version

The Chesapeake Bay 2007 Health and Assessment is presented this year as one document with four chapters, stressing the health of the Bay, the stressors to our environment, restoration efforts and, new this years, a summary of local…

Chesapeake Bay Low Flow Strategy Study 1996

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

The purpose of this study is to develop a general strategyto study and manage the impacts of low freshwater inflows, and reduction of low freshwater inflows, from the Susquehanna River on the salinity distribution, water quality,…

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 release of phosphorus from…

The State of the Chesapeake Bay 1999

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

This report highlights water quality conditions and the status of creatures that call the Bay home.  The first question we answer is how are our most important species doing?  We also explain the progress we're making to reduce the top…

Year Two Report_A Pilot Study for Ambient Toxicity Testing in Chesapeake Bay

Publication date: November 01, 1992 | 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.  A team of scientists from three Chesapeake Bay research laboratories…

The Introduction of Nonindigenous Species to the Chesapeake Bay via Ballast Water

Publication date: January 05, 1995 | Type of document: | Download: Electronic Version

Nonindigenous species are having dramatic effects on marine, estuarine and freshwater ecosystems through out the world.   These invading species can have strong economic and environmental consequences.  The impacts of the recent and…

The Influence of Salinity on the Chronic Toxicity of Atrazine to Sago Pondweed: Filling a Data Need for Development of anEstuarine Chronic Criterion

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

The objective of this study was to conduct a series of 28 d partial life cycle atrazine sub-chronic toxicity tests with sago pondweed, Potamogeton pectinatus. at salinities of 1, 6 and 12 ppt.  These data will be used by Maryland…

Statistical and Analytical Support Contract: Final Report 1987

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

The primary focus of this contract was the devlopment of a statistical analysis framework for detection of trends in Chesapeake Bay water quality attributable to pollution-control management actions.  In Chapter II, a procedure for…

Screening of Candidate Species for Development of Standard Operating Procedures for Aquatic Toxicity Testing with Resident Chesapeake Bay Biota

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

the goal of this study was to evaluate 25 resident Chesapeake Bay species (vertebrates, invertebrates and plants) as potential candidates for future Standard Operating Procedures (SOP)  development for estuarine water column toxicity…

Ripariann Forest Buffer Panel Interim Report 1995

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

Restoring water quality and living resources are tje [rincipal goals of the 1987 Chesapeake Bay Agreement.  In 1992, these goals were reaffirmed by recognizing the importance of the Bay's tributary streams and rivers.  Since then,…

Recommended Guidelines for Sampling and Analyses in the Chesapeake Bay Monitoring Program 1996

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

The purpose of this document is to provide field and laboratory methods and associated quality control (QC) procedures and criteria that will result in the generation of data of known and documented quality for use in the Chesapeake Bay…

Chesapeake Bay Groundwater Toxics Loading Workshop Proceedings

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

The workshop discussed how groundwater delivers more than one-half of the freshwater that enters Chesapeake Bay.  This large volume of freshwater is transported to the Bay as base flow an as direct discharge or upwelling.  Base flow…

Nutrient Trading in the Chesapeake Bay Watershed 2001

Publication date: September 26, 2000 | Type of document: | Download: Electronic Version

The public meetings provided an opportunity for public review and comment on the Draft Nutrient Trading Guidance Document.  The document was written by the Nutrient Trading Negotiation Team, a group composed of a wide array of…

Guide to Using Chesapeake Bay Program Water Quality Monitoring Data

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

this document describes the Chesapeake Bay Mainstem Water Quality Monitoring Program in general and provides detailed information about the existing Program database.  The two main purposes of this document are to assist those who wish…

Chesapeake Bay Pprogram Nutrient Trading Fundamental Principles and Guidelines

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

this document presents fundamental principles and guidelines for nutrient trading in the Chesapeake Bay watershed.  The Chesapeake Bay Program convened the Nutrient Trading Negotiation Team (Negotiation Team) in June 1999 for the…

Chesapeake Bay mainstem Monitoring Program Statistical and Analytical Support Contract_Final Report_Volume 1

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

The primary focus of this contract was the development of a statistical analysis framework for the detection of trends in Chesapeake Bay water quality attributable to pollution-control managementactions.  In Chapter II, a procedure for…

Nutrient-Dissolved Oxygen Dynamics in Chesapeake Bay: The roles of Phytoplankton & Micro-Heterotrophs Under Summer Conditions_1985

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

This study focused on the relationships of phytoplankton and micro-heterotrophs to the development and maintenance of anoxia in the mesohaline region of Chesapeake Bay.  A series of 14 cruises were made from February to October, 1985,…

Monitoring Needs and Partnership Opportunites Assessment: A Report to the Chesapeake Bay Program Monitoring Re-Alignment Action Team

Publication date: September 01, 2009 | Type of document: | Download: Electronic Version

The Chesapeake Bay Program (CBP) Monitoring efforts have served to provide Bay water quality and living resource health assessments while guiding restoration efforts in the Bay community for over 25 years.  As an outcome of a Chesapeake…

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…

Coupling Suspended Sediment Dynamics and Light Penetration in the Upper Chesapeake Bay

Publication date: May 01, 2006 | Type of document: | Download: Electronic Version

The attenuation of light underwater is an important process.  Three water quality constituents contribute to light attenuation in estuaries:  colored dissolved organic matter (CDOM) absorbs light selectively at blue wavelengths;…

Coupling Water Quality and Upper Trophic Level Models for Chesapeake Bay: A Planning Workshop

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

Recent publications of the Chesapeake 2000 agreement (C2K) and the Fisheries Ecosystem Plan reflect the growing interest in integrated management of water quality and fisheries.  Together, these two directives call for a combination of:…

Chesapeake Bay Coordinated Split Sample Program Annual Report, 1990-1991

Publication date: June 01, 1993 | Type of document:

The CSSP has two main objectives; identifying parameters with low inter-organization agreement, and estimating measurement system variability.  The identification of parameters with low agreement is used as part of the overall Quality…

Riparian Areas: A Strategy for Habitat Restoration

Publication date: January 01, 1993 | Type of document:

this habitat restoration strategy is an attempt to examine the many benefits that a healthy riparian area bestows upon all species that interact with the Bay ecosystem, including man.  Many psecies that are listed as endangered or…

The Role and Function of Forest Buffers in the Chesapeake Bay Basin for Nonpoint Ssource Management

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

This paper primarily discusses elements if the relationship between forests and water quality in the context of the forest buffer. 

Trends in The Distribution, Abundance, and Habitat Quality of Submerged Aquatic Vegetation in Chesapeake Bay and its Tidal Tributaries:1971-1991

Publication date: May 01, 1994 | Type of document:

Submerged aquatic vegetation (SAV) historically contributed to the high primary and secondary productivity of Chesapeake Bay, but in the late 1960s and 1970s it experienced a dramatic baywide decline due to increased nutrient and…

Chesapeake Bay Nutrients, Light and SAV: Relationships Between Water Quality and SAV Growth in Field and Mesocosm Studies

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

The SAV beds in the Chesapeake Bay and the lower bay demonstrated different capacities to attenuate inorganic nutrients and suspended particles from adjacent channel waters.  At the Goodwin Island the meadow canopy effectively trapped…

Nutrient-Dissolved Oxygen Dynamics in Chesapeake Bay: The Roles of Phytoplankton and Micro-Heterotrophs Under Summer Conditions, 1985

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

This tudy focused on the relationships of phytoplankton and micro-heterotrophs to the development and maintenance of anoxia in the mesohaline region of Chesapeake Bay.  A series of 14 cruises were made from February to October, 1985, on…

Achieving the Chesapeake Bay Nutrient Goals

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

In 1982, this Bay Agreement nutrient reduction goal was confirmed by the use of computer models, and strengthened by allocating nutrietn reduction goals to each of the ten major tributary systems of the Bay, as well as to each…

A Report to Congress on the Patuxent River

Publication date: January 01, 1998 | Type of document:

The Patuxent River is one of eight major tributaries to the Chesapeake Bay.  It begins near the convergence of Carroll, Howard, Frederick and Montgomery counties, and is bordered byPrince George's, Anne Arundel, Calvert and St. Mary's…

Forestry Best Management Practices and Water Quality in the Piedmont and Ridge-And-Valley Provinces

Publication date: July 07, 1997 | Type of document: | Download: Electronic Version

Ecological functions of forests include provision of a clean and continuous water supply, soil stabilization and sediment retention, nutrient and carbon storage, production of wood products, moderation of woodland stream temperatures,…

Executive Council's Agricultural Nonpoint Source Initiative

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

The goal of Total Resource Management Planning is to identify ways to manage agricultural land holistically by including both environmental and economic factors.  The process makes the farmer aware of tthe relationship among various…

Chesapeake Bay Submerged Aquatic Vegetation Water Quality and Habitat-Based Requirements and Restoration Targets_A Second Technical Synthesis

Publication date: August 01, 2000 | Type of document:

The  principal relationships between water quality conditions and light regimes for growth of SAV are illustrated in Figuree1, which represents an expansion of a similar conceptual diagram presented in the first SAV technical…

Ambient Water Quality Criteria for Dissolved Oxygen, Water Clarity and Chlorophyll a for the Chesapeake Bay and Its Tidal Tributaries

Publication date: May 01, 2010 | Type of document:

In April 2003, the U.S. Environmental Protection Agency (EPA) published the Ambient Water Qualityy Criteria for Dissolved Oxygen, WaterClarity and Chlorophyll a for the Chesapeake Bay and Its Tidal Tributaries which was the…

Ambient Water Quality Criteria for Dissolved Oxygen, Water Clarity and Clorophyll a for the Chesapeake Bay and Its Tidal Tributaries

Publication date: May 01, 2010 | Type of document: Report | Download: Electronic Version

In April 2003, the U.S.  Environmental Protection Agency (EPA) published the Ambient Water Quality Criteria for Dissolved Oxygen, Water Clarity and Chlorophyll a for the Chesapeake Bay and Its Tidal Tributaries which was the foundation…

Nutrient-Dissolved Oxygen Dynamics in Chesapeake Bay

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

This study was funded by grants X-003311-01-0 and X-003310-02-0 from the U.S. Environmental Protection Agency and the National Oceanographic and Atmospheric Administration through the University of Maryland Sea Grant College.  The…

Nutrient Trading to Maintain the Nutrient Cap in the Chesapeake Bay Watershed

Publication date: December 14, 1998 | Type of document: | Download: Electronic Version

this workshop was held om December 14, 1998.  Its purpose, as delineated on the agenda (see Appendix I) was to initiate a process to develop nutrient trading policies and guidelines to achieve and maintain the Nutrient Cap in the…

Baywide Nutrient Reduction Strategy Progress Report

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

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

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…

The Community Watershed Initiative Strategy: Recognizing Shared Vision, Realizing Shared Goals

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

AS directed by the Chesapeake Executive Council in 1997 (see appendix I) the  Community Watershed Initiative offers a framework to enable the Chesapeake Bay Program (CBP) to better support community watershed efforts for the benefit of…

The Restoration of the Anacostia River - The Report to Congress

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

The House and Senate Committies on Appropriations in their approval of the U.S. Environmental Protection Agency (EPA) FY92 Operating Plan directed EPA to conduct a stidu of the Anacostia River.  This study "should include...ana analysis…

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…

Reducing Pollution from Nonpoint Sources: The Chesapeake Experience-1990

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

Reducing pollution from nonpoint sources has been one of the most difficult challenges in the Chesapeake Bay restoration effort.  The states and the federal government have joined in mounting a comprehensive effort to defime, quamtify…

Dissolved Oxygen Trends in the Chesapeake Bay (1984-1990)

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

Low dissolved oxygen is one of the most important problems facing managers and scientists in the restoration of Chesapeake Bay.  Oxygen is critical to the health and survival of tje Bay's aquatic life.  Faced with decreasing levels of…

Chesapeake Bay Basin Toxics Loading and Release Inventory

Publication date: May 01, 1999 | Type of document:

This Toxics Loading and Release Inventory is one of many tools the Chesapeake Bay Program is using to  set more targeted source reduction and pollution prevention goals to reduce and eliminate toxic impacts in the Bay.  The overall goal…

Biological Nitrogen and Phosphorus Removal in Oxidation Ditch and High Nitrate Recycle Systems

Publication date: August 01, 1990 | Type of document:

Full scale process modifications were conducted in an oxidaation ditch system to understand the kinetics of biological nitrogen and phosphorus removal in activated sludge systems which may use high nitrate or internal recycles.  Design…

Chesapeake Bay Nutrients, Light and SAV: Relationships Between Water Quality and SAV Growth in Field and Mesocosm Studies

Publication date: June 01, 1995 | Type of document:

The decline of submerged aquatic vegetation (SAV) in the Chesapeake Bay has been associated with light limitation resulting from changes in water quality (Kemp et al/ 1984, Orth and Moore 1983).  Eutrophication severely limits the…

Water Quality GIT BMP Review Protocol

Publication date: | Type of document: Policy Document | Download: Electronic Version

July 13, 2015 version.

Homeowner BMP crediting memo

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

Approved by the Water Quality Goal Implementation Team, February 10, 2014.

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…



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