2026

    STAC Workshop: State of the Science of Salinity Risks in the Chesapeake Bay and Its Tributaries: Connecting Monitoring, Modeling and Management

    Tuesday, May 26, 2026 from 9:00am - Wednesday, May 27, 2026 from 5:00pm

    The Scientific and Technical Advisory Committee (STAC) will host an in-person workshop in May 2026 to assess the state of the science of salinization in the Chesapeake Bay watershed, gain a better understanding of long-term trends and the magnitude and frequency of extreme salinity events, and identify effective ways to anticipate and manage changes in salinization. The workshop will result in a comprehensive document that describes the state of the science of salinization risks in the Chesapeake Bay watershed and guidance for monitoring, modeling, and management from headwaters to coastal waters.

    More information and materials can be found on the STAC workshop page.

    STAC Workshop: Challenges and Opportunities in Operationalizing Coupled Human and Natural Systems Research in the Chesapeake Bay Watershed

    Thursday, March 26, 2026 from 9:00am - Friday, March 27, 2026 from 5:00pm

    The Scientific and Technical Advisory Committee (STAC) will host an in-person workshop in March 2026 to convene federal, state, local, and academic partners to synthesize the state of the science on applied coupled human and natural system (CHANS) approaches, recognize opportunities for collaboration, identify achievable solutions, and articulate key research needs. The workshop will be highly collaborative and application-focused, with activities designed to engage participants in structured breakout sessions to achieve four primary objectives:

    1. Synthesize the current state of applied CHANS science and its relevance to addressing challenges in the CBW ecosystem.
    2. Map feedbacks and identify gaps.
    3. Assess CHANS applications.
    4. Develop recommendations.

    More information and materials can be found on the STAC workshop page.

    STAC Workshop: Healthy Forests: Proactive Strategies for Managing Threats and Promoting Conservation

    Wednesday, February 4, 2026 from 9:00am - Thursday, February 5, 2026 from 5:00pm

    The Scientific and Technical Advisory Committee (STAC) will host an in-person workshop in February 2026 to integrate insights from scientific research, expert testimony, and case studies to build a comprehensive framework of monitoring programs, adaptive management strategies, collaborative efforts, and other measures for achieving meaningful conservation outcomes. The main objectives of this workshop are:

    • Identify major stressors to forest health and resilience in the Chesapeake Bay watershed, including from changing environmental conditions, land use change, non-native species, pests, diseases, and other stressors.
    • Evaluate whether and the extent to which the major stressors identified (and interactions between multiple stressors) may lead to declines in forest health through impairment of forest ecology.
    • Evaluate how impairments to forest ecology may impact the ability of forests to improve water quality, how these impairments may lead to forest loss, and the implications of these for meeting the Bay Program’s goals.
    • Develop actionable recommendations for improving forest health and resilience to enhance conservation outcomes through silvicultural practices, invasive species management, policy, community engagement, and other incentives, in addition to traditional conservation.

    More information and materials can be found on the STAC workshop page.

2025

    Scientific and Technical Advisory Committee (STAC) Meeting - September 2025

    Tuesday, September 16, 2025 from 10:00am - 3:00pm

    The September 2025 STAC Meeting will be held hybrid format on Tuesday, September 16th, from 10:00am to 3:00pm. The in-person meeting space is at the Chesapeake Bay Program Office, in the Blue Crab and Oyster Room.

    Please fill out the RSVP form for both in-person and virtual attendance; all RSVPs will receive a Zoom invitation one week prior to the meeting. You may resubmit this form at any time to update your attendance.

    RSPV (Google Form)

    Updates for this meeting will be posted on the STAC site.

    STAC Workshop: Advancing Market-Based Approaches in the Agricultural Sector to Support Chesapeake Bay Watershed Restoration

    Tuesday, July 8, 2025 from 9:00am - Wednesday, July 9, 2025 from 5:00pm

    The Scientific and Technical Advisory Committee (STAC) will host a 2-day workshop to identify key knowledge gaps and provide actionable guidance for implementing market-based approaches to achieve Chesapeake Bay goals. This workshop will focus on corporate sustainability programs and pay-for-outcomes programs to accelerate the speed and scale of implementation of agricultural conservation practices. Discussion will examine synergies and frictions among incentives and frameworks governing the decisions of private-sector and public-sector partners across the food supply chain. 

    Updates will be posted to the STAC workshop webpage.

    Scientific and Technical Advisory Committee (STAC) Strategic Planning Meeting - June 2025

    Monday, June 16, 2025 from 10:00am - Wednesday, June 18, 2025 from 3:00pm

    The Scientific and Technical Advisory Committee's (STAC) will convene Monday, June 16-Wednesday, June 18 at the National Conservation Training Center (NCTC). At this meeting, "Setting the Science Agenda for 2026," STAC will engage in strategic planning for the next year, discussing how STAC's expertise can best support the Bay Program.

    A session open to the public will take place June 18, 1:00PM-3:00PM. The link to access this session will be posted  on the STAC website at the time of the session.

    STAC Workshop: Blueprint for Building Partnerships and Recommendations for Scaling Brook Trout Restoration in Stronghold and Persistent Patches - Maryland

    Tuesday, June 3, 2025 (all day)

    The Scientific and Technical Advisory Committee (STAC) will host two separate one-day workshops for the purpose of strategizing implementation of priority best management practices to successfully recolonize, recover or repatriate brook trout populations. This workshop will convene experts from Chesapeake Bay Program Goal Implementation Teams and Workgroups, conservation organizations, regional coordinators, funding program administrators, and other relevant organizations in Baltimore, Carroll, and Garrett Counties in Maryland (May/June 2025) and Potter and Clearfield Counties in Pennsylvania (May/June 2025). Workshop participants will identify and synthesize the science needed, and local considerations and needs, to develop an actionable large-scale restoration plan to increase brook trout occupancy, abundance and resiliency within and among stronghold and/or persistent patches in priority geographies.

    Updates will be posted to the STAC workshop webpage.

    STAC Workshop: Blueprint for Building Partnerships and Recommendations for Scaling Brook Trout Restoration in Stronghold and Persistent Patches - Pennsylvania

    Thursday, May 29, 2025 (all day)

    The Scientific and Technical Advisory Committee (STAC) will host two separate one-day workshops for the purpose of strategizing implementation of priority best management practices to successfully recolonize, recover or repatriate brook trout populations. This workshop will convene experts from Chesapeake Bay Program Goal Implementation Teams and Workgroups, conservation organizations, regional coordinators, funding program administrators, and other relevant organizations in Baltimore, Carroll, and Garrett Counties in Maryland (May/June 2025) and Potter and Clearfield Counties in Pennsylvania (May/June 2025). Workshop participants will identify and synthesize the science needed, and local considerations and needs, to develop an actionable large-scale restoration plan to increase brook trout occupancy, abundance and resiliency within and among stronghold and/or persistent patches in priority geographies.

    Updates will be posted to the STAC workshop webpage.

    STAC Workshop: Leveraging Artificial Intelligence and Machine Learning to Advance Chesapeake Bay Research and Management: A review of status, challenges, and opportunities

    Monday, February 24, 2025 (all day)

    The Scientific and Technical Advisory Committee (STAC) hosted a 2-day workshop in February 2025 for the purpose of bringing together federal, state, and academic partners to delve into the opportunities artificial intelligence (AI) and machine learning (ML) offer for analyzing large-scale environmental data, identifying research needs, and improving coordination within the Chesapeake Bay Program partnership. The aim of this collaborative workshop was to enhance data-driven approaches to support Chesapeake Bay restoration goals, ensuring more effective and informed management practices.

    More information and materials can be found on the STAC workshop page.

    STAC Workshop: Striped Bass Survey Assessment and Habitat Connections

    Thursday, February 13, 2025 (all day)

    The Scientific and Technical Advisory Committee (STAC) hosted a two-day workshop to investigate the environmental and ecological factors contributing to the low recruitment of Striped bass. The workshop aimed to review current survey approaches and identify priority science needs, supporting the management of this marquee sportfish, which is vital to both the recreational fishing industry and commercial harvest along the Atlantic Coast. The workshop focused on exploring research needs, sharing insights, and fostering collaboration among participants to support effective management strategies.

    More information and materials can be found on the STAC workshop page.

2024

    STAC Workshop: CBP Climate Change Modeling III: Post-2025 decisions - May 2024

    Tuesday, May 7, 2024 (all day)

    The Scientific and Technical Advisory Committee (STAC) will host a 3-day workshop in May 2024 for the purpose of bringing Chesapeake Bay Program (CBP) managers and model developers together with experts in climate change, estuarine, and watershed science. Workshop participants will be asked to develop recommendations to guide the development and application of CBP Total Maximum Daily Load (TMDL) models for climate change applications.

    To see more, visit the workshop page.

2023

    STAC Workshop: Using Ecosystem Services to Increase Progress Toward, and Quantify the Benefits of, Multiple CBP Outcomes (Day 2)

    Tuesday, June 6, 2023 from 1:00pm - 4:00pm

    The Scientific and Technical Advisory Committee (STAC) hosted Day 2 of a multi-day workshop for the purpose of developing a strategic plan for the Chesapeake Bay Program to incorporate ecosystem services (ES) into its current decision framework, tools, and engagement with local partners; as well as guidance to help partners apply ES information to increase implementation of restoration and conservation activities. This will enable CBP to take advantage of ongoing efforts and new datasets to better identify, assess, and communicate the multiple benefits of restoration and conservation activities in the Bay watershed.

    For more details, visit the STAC site.

    STAC Workshop: Using Carbon to Achieve Chesapeake Bay (and Watershed) Water Quality Goals and Climate Resiliency: The Science, Gaps, Implementation Activities and Opportunities

    Thursday, May 25, 2023 (all day)

    The Scientific and Technical Advisory Committee (STAC) hosted a 2-day workshop to bring together leading experts to elevate the use of biochar in practice Bay-wide by evaluating and translating current research for integration into current Chesapeake Bay protocols. Concurrent with rapid global research and biochar-focused publications, US research grew with demonstration projects in the Chesapeake Bay region conducted by a multidisciplinary team of researchers, state and federal partners, and non-profits. These projects show significant environmental benefits including water quality improvement (reduction of nutrients/toxics), improved agricultural and urban soil health, and significant increases in soil infiltration capacity and hydrology. They have greatly advanced the empirical evidence supporting biochar protocols, standards, specifications, and crediting which are lacking in the Bay region. The purpose of this workshop was to accelerate the water quality efforts via the benefits biochar provides to more closely meet 2025 requirements and plan forward for water quality policies and carbon negative opportunities considered in the forthcoming 2025-2035 Climate TMDL.

    For more details, visit the STAC site.

    STAC Workshop: Using Ecosystem Services to Increase Progress Toward, and Quantify the Benefits of, Multiple CBP Outcomes (Planning Session)

    Tuesday, April 18, 2023 from 9:15am - 3:00pm

    The Scientific and Technical Advisory Committee (STAC) hosted a workshop for the purpose of developing a strategic plan for the Chesapeake Bay Program to incorporate ecosystem services (ES) into its current decision framework, tools, and engagement with local partners; as well as guidance to help partners apply ES information to increase implementation of restoration and conservation activities. This will enable CBP to take advantage of ongoing efforts and new datasets to better identify, assess, and communicate the multiple benefits of restoration and conservation activities in the Bay watershed.

    For more details, visit the STAC site.

    STAC Workshop: Best Management Practices to Minimize Impacts of Solar Farms on Landscape Hydrology and Water Quality

    Thursday, April 6, 2023 (all day)

    The Scientific and Technical Advisory Committee (STAC) hosted a two-day workshop to explore the potential impact of land use transition renewable energy within the Chesapeake Bay watershed, and our ability to meet TMDL goals. Current BMP recommendations are varied across the watershed, with only some states providing solar-specific stormwater management guidance. There is a need to ascertain the state of the science on solar farms and environmental quality that will inform field research and modeling in the Chesapeake Bay region.

    For more details, visit the STAC site.

    STAC Workshop: The State of the Science and Practice of Stream Restoration in the Chesapeake: Lessons Learned to Inform Better Implementation, Assessment and Outcomes

    Tuesday, March 21, 2023 (all day)

    The Scientific and Technical Advisory Committee (STAC) hosted a three-day workshop to bring together the scientific and management communities to synthesize our understanding of practices, assessment approaches, and ecosystem outcomes in order to inform and improve stream restoration practices.

    For more details, visit the STAC site.

    STAC Workshop: Using Ecosystem Services to Increase Progress Toward, and Quantify the Benefits of, Multiple CBP Outcomes (Day 1)

    Thursday, March 16, 2023 from 9:00am - 4:45pm

    The Scientific and Technical Advisory Committee (STAC) hosted Day 1 of a multi-day workshop for the purpose of developing a strategic plan for the Chesapeake Bay Program to incorporate ecosystem services (ES) into its current decision framework, tools, and engagement with local partners; as well as guidance to help partners apply ES information to increase implementation of restoration and conservation activities. This will enable CBP to take advantage of ongoing efforts and new datasets to better identify, assess, and communicate the multiple benefits of restoration and conservation activities in the Bay watershed.


    For more details, visit the STAC site.

    STAC Workshop: Using Local Monitoring Results to Inform the Chesapeake Bay Program’s Watershed Model

    Tuesday, March 7, 2023 (all day)

    The Scientific and Technical Advisory Committee (STAC) hosted a two-day workshop to bring together CBP modelers, local government stakeholders, and scientists who are monitoring and analyzing local water quality data to recommend ways in which local monitoring data can be used to inform the CBWM, identify gaps between modeled and monitored data, and be used to validate model predictions at the local scale.

    For more details, visit the STAC site.

2022

    STAC Quarterly Meeting December 2022

    Tuesday, December 6, 2022 (all day)

    This is the STAC Quarterly Meeting. Agenda to come.

    Note: When this meeting took place, it was part of the Biennial Strategy Review System's Clean Water cohort. Cohorts are predefined sets of teams that represent a particular group of Chesapeake Bay Watershed Agreement outcomes. In 2023, the Strategy Review System's cohorts changed. As a result, the outcomes that were discussed at this meeting are no longer grouped together. To learn more, visit ChesapeakeDecisions: a tool that promotes transparency and guides teams through the Strategy Review System process.

    STAC Science Needs Presentations due

    Monday, November 28, 2022 (all day)

    STAC Science Needs Presentations due

    Note: When this meeting took place, it was part of the Biennial Strategy Review System's Clean Water cohort. Cohorts are predefined sets of teams that represent a particular group of Chesapeake Bay Watershed Agreement outcomes. In 2023, the Strategy Review System's cohorts changed. As a result, the outcomes that were discussed at this meeting are no longer grouped together. To learn more, visit ChesapeakeDecisions: a tool that promotes transparency and guides teams through the Strategy Review System process.

2021

2020

    STAC December Quarterly Meeting

    Tuesday, December 15, 2020 from 9:00am - 4:00pm
    STAC will meet for their December Quarterly Meeting on December 14-15, 2020. This will be an all virtual meeting and it is open to the public. Agenda and materials will be posted as they are received and can be found on the STAC December Quarterly Meeting Webpage: https://www.chesapeake.org/stac/events/december-2020-stac-quarterly-meeting/ Please note, the times for this meeting may be altered due to it being a virtual meeting. Check back on the STAC website for updates.

2019

2018

2017

2016

2015

2014

    STAC Roadside Ditch Management Workshop

    Friday, October 10, 2014 from 9:00am - 5:00pm
    Workshop Objectives: Share recent scientific assessments of regional surface water quality impacts from ditches alongside low-volume, rural roads; Review CBP accepted best management practices to mitigate impacts from roadside ditches and explore novel approaches to treating road runoff; Outline additional policy and research and monitoring needs to enhance rural roadside ditch management; and Establish a communications network for professionals, including decision-makers, practitioners, and scientists, engaged in building better ditch management across the Bay Watershed.

    Scientific and Technical Advisory Committee (STAC) Workshop - Mgmt. Effects on Water Quality Trends

    Tuesday, March 25, 2014 from 9:00am - Wednesday, March 26, 2014 from 4:00pm
    The purpose of the workshop is to identify improved technical approaches for explaining the effect of management actions, and the degree they are influencing, water-quality changes in the watershed and estuary. The primary objectives of the workshop are to provide recommendations to: (1) Develop more integrated quantitative approaches that explain water-quality trends in the watershed and estuary, (2) Improve the data sets of the variables (nutrient/sediment sources, land change, management practices) affecting tends, and (3) Enhance the use of models to integrate information needed to help explain trends.

    Review of the Proposal 'How Oxygen and Windmills Can Save the Bay'

    Wednesday, January 1, 2014 from 9:00am - 5:30pm
    STAC reviewed the proposal by J. Adam Hewison entitled 'How Oxygen and Windmills can save the Bay.' The Committee commended Mr. Hewison for thinking creatively and proposing an innovative approach to addressing the problem of anoxia/hypoxia in the Bay, but concluded that the concept of mechanical aeration, powered by windmills, may have some limited practical applications in subsystems of the Bay and its tributaries. The idea does not, however, represent a potential solution to the low dissolved oxygen conditions found in deep waters of the Bay mainstem. The proposal to aerate the Bay with windmills addresses a symptom, not the cause of the Bay?s problem. Reducing nutrient inputs is the only long-term solution to extensive hypoxia in the deep waters of the Chesapeake Bay. A full summary of the Committee?s response is available in the accompanying report.

2013

    An Innovative Look at the Advances of Onsite Decentralized Wastewater Treatment Systems

    Tuesday, December 17, 2013 from 8:00am - 11:30am

    Workshop lead Glynn Rountree and STAC will engage in a discussion of current and future onsite septic systems and how they may provide Bay state and local government managers, developers, consultants and state regulators with:
    a) Information on cutting-edge technologies in onsite/decentralized wastewater treatment,
    including cluster systems, that have been successful in real world applications;
    b) A suite of options and alternatives that they should also evaluate as they contemplate how to
    meet TMDL and other program objectives;
    c) An explanation of the model state program developed by EPA as guidance for states in
    implementing programs to reduce nutrients, and
    d) A forum for sharing experiences amongst participants and presenters.

    December 2013 STAC Quarterly Meeting

    Tuesday, December 3, 2013 from 9:00am - 4:00pm

    The Scientific and Technical Advisory Committee (STAC) will hold their third FY 2013 quarterly meeting on December 3-4, 2013 at the Hilton Garden Inn in Annapolis, MD. Additional information is below.

    Understanding the Lag Times Affecting the Improvement of Water Quality in Chesapeake Bay

    Thursday, October 17, 2013 (all day)
    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 to implement the most effective nutrient and sediment reduction strategies and for scientists to improve monitoring and modeling. Tributary strategy plans for basins within the Bay watershed have been developed to implement appropriate best management practices (BMP?s) to reduce nutrient and sediment loads to the Bay. These practices are designed so water-quality criteria (for dissolved oxygen, water clarity, and chlorophyll) can be met in the Bay by 2010. However, there is a large degree of uncertainty about the 'lag time' between implementing the nutrient and sediment practices and detecting an actual improvement of water quality and SAV in the Bay. The objectives of the workshop were to provide the CBP with a better understanding of the factors affecting the 'lag time' associated with improving water quality and SAV in the Bay and provide recommendations for improved monitoring and modeling of these factors. Results from the workshop suggest that ?lag times? associated with implementation of management practices, impacts of watershed properties, and response of the Bay water quality will make it very difficult to meet water-quality criteria in the Bay by 2010. Additionally, there are lag times associated with the movement of nutrients and sediment in the watershed. These include the influence of ground water which may cause a lag time from months to decades for improvement in nitrogen concentrations. Watershed properties affecting the storage and transport of phosphorus and sediment may cause lag times of years to decades in water-quality improvements. Lag times in the tidal waters appear to be much shorter. The findings suggest that water-quality conditions in tidal waters may improve within a season as nutrient and sediment loadings are reduced to the Bay.

    September 2013 STAC Quarterly Meeting

    Tuesday, September 17, 2013 from 9:00am - 4:00pm

    STAC held the second quarterly meeting of FY 2013 on September 17-18 at the Maryland Inn in Annapolis, MD. Please see below for more information.

    June 2013 STAC Quarterly Meeting

    Tuesday, June 11, 2013 from 9:00am - 4:00pm

    STAC held their first quarterly meeting of FY 2013 on June 11-12 in Annapolis, MD at the Sheraton Annapolis Hotel. The final agenda for this meeting is below.

    Critical Issues and Opportunities for Improving Performance of Water Quality Credit Trading Programs

    Tuesday, May 14, 2013 (all day)

    STAC will sponsor a Nutrient Trading workshop and discussion on May 14th at the Sheraton Hotel in Annapolis, MD. Experts will convene to examine the current state of nutrient trading programs throughout the Chesapeake Bay watershed, and discuss the future of nutrient trading as a means to reduce the cost of meeting TMDL regulations. The purpose of the workshop will be to inform state trading officials, and develop a set of nutrient trading recommendations to the Chesapeake Bay Program.

    March 2013 STAC Quarterly Meeting

    Wednesday, March 13, 2013 from 9:00am - 5:00pm

    The committee met for its fourth and final meeting of FY 2012. A final agenda is posted on this webpage.

    Evaluation of the Use of Shellfish as a Method of Nutrient Reduction in the Chesapeake Bay

    Monday, March 11, 2013 from 10:00am - 1:00pm

    The CBP requested that STAC conduct a review of the relecant informaiton on the potential use of shellfish as a method of nutrient reduction in the Chesapeake Bay and advise the program specifially on how shellfish might be inforporated into nutrient reduction practices.

    The review panel met once in person, and continue discussion via phone and email until review report was complete.

    Using Multiple Management Models (M3.2) in the Chesapeake Bay

    Tuesday, February 26, 2013 from 9:00am - 4:00pm

    The M3.2 workshop will investigate how to incorporate multiple management models into the Chesapeake Bay Program's modeling suite. The purpose of this workshop will be to gather regional and national technical experts and managers with hands-on experience using multiple models in a regulatory context to discuss their experiences and consider how multiple models could be used within the CBP.

    Workshop participants will be presented with the benefits and drawbacks of using multiple models by speakers who have worked with multiple models to solve management problems throughout the country.

2012

    December 2012 STAC Quarterly Meeting

    Tuesday, December 4, 2012 from 9:00am - 4:00pm

    The Committee will meet for the third quarterly meeting of STAC's FY 2012. A draft agenda is posted below.

    Lag Times in the Watershed and Their Influence on Chesapeake Bay Restoration

    Tuesday, October 16, 2012 from 9:00am - 4:00pm

    The goal of the workshop is to bring together a diverse set of experts who can suggest ways in which the concept of lag-times can be represented in simulation models of the Chesapeake Bay Watershed. The workshop outcome will be a set of recommendations to the Chesapeake Bay Program regarding data collection, research, model development, policy development, and public communication that furthers a better incorporation of realist representations of lag times in Chesapeake Bay restoration efforts.

    September 2012 STAC Quarterly Meeting

    Wednesday, September 12, 2012 from 9:00am - 4:00pm

    The Committee will meet for the second quarterly meeting of STAC's FY 2012. The final meeting agenda can be found below.

    Review of DRAFT Ambient Water Quality Criteria for Dissolved Oxygen, Water Clarity and Chlorophyll a

    Thursday, July 12, 2012 from 9:00am - 4:00pm
    STAC conducted a scientific review of the CBP?s draft Ambient Water Quality Criteria for Dissolved Oxygen, Water Clarity and Chlorophyll a for the Chesapeake Bay and Tidal Tributaries. The document was reviewed by 10 scientists with four from institutions from outside the Bay watershed. The charge to STAC was to organize a scientific peer review of the report focusing on Appendix A (Designated Uses); Chapters 3-5 on criteria for Dissolved Oxygen, Water Clarity and Chlorophyll, respectively; and Chapter 6 (Implementation Guidelines). Each reviewer was asked to comment on Appendix A, Chapter 6, and one of the criteria chapters.

    June 2011 STAC Quarterly Meeting

    Tuesday, June 19, 2012 from 9:00am - 4:00pm

    The Committee will gather for the first quarterly meeting of STAC's FY 2011. The draft agenda can be accessed below.

    June 2012 STAC Quarterly Meeting

    Tuesday, June 19, 2012 from 9:00am - 4:00pm

    The Committee will meet for the first quarterly meeting of STAC's FY 2012. Please see the draft agenda below for more details.

    Real World Sustainable Wastewater Practices

    Wednesday, May 16, 2012 from 9:00am - 4:00pm

    This workshop will address cutting edge wastewater treatment technologies - a critical topic in the Chesapeake Bay watershed. This topic is important to the local governments and utilities that operate wastewater plants in the Bay region, as well as to the state and federal agencies that regulate those plants. These plants will have to operate under strict nutrient load caps defined in the Bay Program's TMDL - now and into the future, even as the growth in the Bay watershed continues. It will be important to build these facilities with less infrastructure, operate them using less energy and fewer chemicals, all the while ensuring reliable operations and minimizing nitrogen GHG emissions.

    This workshop is aimed at identifying those cutting edge technologies (focused on nitrogen) that appear to be viable options, and to begin a dialogue between practitioners, designers, and regulators on how these practices can be successfully implemented in the Bay watershed.

    Using Multiple Management Models in the Chesapeake Bay

    Thursday, April 26, 2012 from 9:00am - 4:00pm

    The Chesapeake Bay Program (CBP) currently intends to find funds in nexy year's federal budget to fund multiple modeling teams to develop, run and compare the output of multiple coupled shallow water, hydrodynamic+water quality/sediment models within a data-rich, shallow water area of the estuary. STAC has specifically been asked to conduct a workshop to help the CBP:

    1) Define elements that should be included in such a pilot project and,

    2) Begin a discussion of the benefits and challenges of using multiple models in a regulatory environment.

    This workshop will be the first of two workshops held on this topic. The second will take place during the summer of 2012.

    Market-Based Approaches to Accelerating Chesapeake Bay Restoration

    Tuesday, April 24, 2012 from 9:00am - 4:00pm

    The proposed workshop will convene for a broad-based discussion of the state-of-the-science and the state-of-practice with respect to market-based mechanisms in Bay restoration. An ad hoc steering committee has been formed to begin planning for this workshop, and the members of the committee recommended a focus on factors contributing to both the supply and demand for environmental services across the Bay region. This is reflected in a proposed focus on:

    Creating a framework to describe circumstances where specific market mechanisms are more (or less) effective.

    Describing boundary conditions and circumstances contributing to the success (or failure) of specific mechanisms.

    Understanding model programs with respect to this framework, boundary conditions, and circumstances.

    Sharing practices regarding program evaluation and assessment.

    March 2012 STAC Quarterly Meeting/Retreat

    Tuesday, March 27, 2012 from 9:00am - 4:00pm

    STAC Staff is happy to announce that the 2012 March quarterly meeting has morphed into a STAC Retreat, similar to the March 2010 Retreat. At the December quarterly meeting, Carl Hershner (VIMS) updated STAC about the ongoing implementation of the decision framework and implementation of adaptive management in the Bay Program - and specifically about ways STAC can/should be involved. As a result, STAC's Executive Board approved the decision to turn STAC's quarterly meeting into a retreat. The focus of the retreat will be on the GITs restoration endpoints, and establishing a goal evaluation framework for the GITs.

    Hotel: The Inn at Herrington Harbour

    Inn Directions: http://www.herringtonharbour.com/inndirections.html
    P.O. Box 150
    Friendship, Maryland 20758
    7161 Lake Shore Drive
    Rose Haven, MD 20714
    410-741-5100 (press 2)
    Website: inn@herringtonharbour.com

    Please reserve your room before February 27, 2012 by contacting the Inn at Herrington Harbour at 410-741-5100 ext. 2. Below is the list of available rooms being reserved for STAC members. The Executive Board is requesting that all members stay overnight, regardless of your proximity to the meeting location. STAC will be hosting a dinner, and an evening meeting session, so your participation will be needed well into the evening.

    Overnight room rates vary, but as always STAC will be reimbursing all non-federal agency members. The Inn has 29 guest rooms and 4 suites. Members who feel comfortable rooming with another member should take advantage of the suites to leave room for more STAC members to attend. Some suites have two bedrooms and two bathrooms. Because space is limited, please make your reservation with the Inn AND RSVP to Natalie Gardner at gardnern@si.edu by February 27th.


    Beneficial Effects of Healthy Watersheds on Pollutant Fate and Transport

    Wednesday, March 7, 2012 from 9:00am - 4:00pm

    This workshop will examine and discuss how important attributes such as natural variation within a feature class, anthropogenic degradation, management status, and spatial factors (e.g., hydrologic connectivity, location in watershed) affect how nutrient and/or sediment retention/loading rates are assigned to natural landscape features (wetlands, riparian buffers, and streams, including hyporheic zones) within the Chesapeake Bay Watershed Model.

    Maximizing the Dual Benefits of Advanced Wastewater Treatment Plant Processes: Reducing Nutrients an

    Sunday, January 1, 2012 from 9:00am - 5:00pm
    Growing concerns over potential environmental and human risks from endocrine disrupting compounds (EDCs), such as pharmaceutical and personal care products (P/PCP), have prompted this workshop. Evidence of possible impact to the living resources of the Chesapeake watershed (e.g., fish) suggest that a greater understanding of the contribution of EDCs from wastewater effluent to surface waters is needed. As WWTPs in the Chesapeake Bay are dealing with implementation of ENR through limit of technology (LOT) strategies, the issue of EDC-P/PCP fate and nutrient control is inevitably linked. The objective of the workshop is to collect information about upstream sources of EDCs, the behavior of EDCs in enhanced nutrient removal (ENR), and the impact to biosolids and reclaimed wastewater, and to provide the information to wastewater plant authorities, designers, and operators. Although past workshops on EDCs and P/PCPs have discussed the role of nutrients, that discussion has tended to be superficial. This workshop will have a national impact as it will explicitly address the current and planned uses of ENR and how those decisions will impact or influence EDC-P/PCP fate. Workshop proceedings will be synthesized into a technical brief that will be distributed to the wastewater community and to state and federal environmental agencies.

2011

    December 2011 STAC Quarterly Meeting

    Wednesday, December 14, 2011 from 9:00am - 4:00pm

    The Committee will meet for the third quarterly meeting of STAC's FY 2011. The draft agenda is included below.

    September 2011 STAC Quarterly Meeting

    Wednesday, September 14, 2011 from 9:00am - 4:00pm

    The Committee will meet for the second quarterly meeting of STAC's FY 2011. The draft agenda is posted below.

    Review of the LimnoTech Report, Comparison of Load Estimates for Cultivated Cropland in the Chesapea

    Thursday, July 28, 2011 from 9:00am - 4:00pm

    The Chesapeake Bay Program Partnership asked STAC to convene an independent, expert panel to review the LimnoTech report and to make recommendations concerning the application of multiple models in environmental management of the Chesapeake Bay. This expert panel met with modeling experts from both the USDA and EPA on July 28-29, 2011 in Edgewater, MD to discuss aspects of the Chesapeake Bay Program's Watershed model and the USDA-NRCS model of the cultivated cropland in the Chesapeake Bay region. The report included below describes the panel's findings.

    Hydrodynamic Modeling Workshop

    Thursday, June 9, 2011 from 9:00am - 4:00pm

    A joint CCMP, CSDMS, CBP, and U.S. IOOS Modeling Testbed Hydrodynamic Modeling Workshop will be convened at the Smithsonian Environmental Research Center, June 9-10, 2011. The purpose of this workshop will be to review state-of-the-art coastal and estuarine hydrodynamic modeling and compare the strengths and weaknesses of different model grids and their ability to simulate physical properties such as temperature and salinity variability and stratification. A strong emphasis will be placed on how well these models perform in Chesapeake Bay with goals of informing simulations of water quality parameters (such as light, nutrients, chlorophyll, and oxygen concentrations). These modeled attributes plus accurate circulation computations obviously have important implications for other critical components of the tidal bay and tributaries such as larval and juvenile transport, habitat, inundation, and climate change. Quantitative comparisons of model performance in Chesapeake Bay will draw heavily from the on-going U.S. IOOS Modeling Testbed model intercomparison project. The overarching goals of this workshop will be to 1) review, summarize, and finalize the results from the U.S. IOOS Modeling Testbed model intercomparison project and 2) provide input to the Chesapeake Bay modeling workgroup that can be used to inform selection of a future hydrodynamic model or model ensemble for assessing water quality and living resource management impacts.

    SKYPE Workshop

    Thursday, May 12, 2011 from 9:00am - 4:00pm

    I really like SKYPE.

    March 2011 STAC Quarterly Meeting

    Tuesday, March 22, 2011 from 9:00am - 4:00pm

    STAC will meet for the final quarterly meeting of FY 2010 on March 22 and March 23 at the Governor Calvert House Historic Inn of Annapolis.

    Monitoring Progress in Addressing Climate Change across the Chesapeake Bay Watershed

    Wednesday, March 16, 2011 from 9:00am - 4:00pm

    STAC and members of the research community have made substantial investments of time and energy in the development of actionable recommendations and plans for addressing climate change. The \\'ball\\' has been passed to the Chesapeake Bay Program and its partners for action, and the Committee watching closely for signs of implementation action. STAC can play a key role in tracking their progress and motivating them to accelerate and expand their implementation efforts. The breadth of the implications of climate change for the Bay watershed means that action from the Bay Program and its partners would have far-reaching consequences. Conversely, continued inaction has the potential to undermine an equally broad range of protection and restoration activities. Outcomes from this workshop and subsequent workgroup meetings will provide the Bay Program and the partners with a summary of relevant recommendations and a framework for assessing progress over time. It will also serve as a \\'point of departure\\' in a transition between a focus on assessment to a new emphasis

    Social Science and Chesapeake Bay Restoration

    Thursday, March 10, 2011 from 9:00am - 4:00pm

    Introduction Among scientists and policymakers in the Chesapeake Bay region, there is increasing recognition that 1) human dimensions need to be better integrated into efforts to restore ecosystem function, reduce pollution, and manage the sustainable use of natural resources, and 2) our understanding of the impacts of these human dimensions on restoration requires an integration of social science approaches. A myriad of human factors (e.g., Population growth, economic cycles, institutional structures and functions, and cultural and social diversity) generate complex social issues whose varied impacts on restoration strategies require research analysis and adaptive management. To date, there has been little assessment of the social context and how research findings can benefit and be integrated into restoration efforts.


    This workshop will provide a forum for natural resource managers and social science researchers to identify priorities and opportunities for advancing the contribution of social science research to Chesapeake Bay restoration. Discussions will be structured around two themes: 1) analyzing and influencing environmental stewardship behaviors among watershed residents, managers, and leaders and 2) assessing and overcoming community, group, and organizational barriers to Bay restoration efforts. Through actions recommended by this workshop, we will lay the foundation for a constructive conversation between program managers and social science experts to increase the awareness of the benefits of social science research, and enhance integration of social science research into Bay restoration.


    Evaluation of the Efficacy of SAV Restoration Approaches in Chesapeake Bay

    Monday, January 3, 2011 from 9:00am - 4:00pm

    The Bay Program has fallen far short of its proximate SAV goal of direct restoration of 1,000 acres of SAV. Further, it is unclear whether or not direct restoration has or could advance the overall goal of achieving 185,000 acres of SAV bay wide. Direct restoration was originally proposed as a strategy for increasing SAV abundance because new beds were thought to have the potential to “kick-start” seagrass restoration by providing seed sources and improving physical conditions for seagrass recruitment. Past SAV restoration has shown mixed results in terms of generating persistent beds and inducing new bed development, raising the question of whether or not current restoration techniques are generating sufficient returns on investment. Continued implementation of the SAV restoration strategy is contingent upon an independent assessment of its effectiveness. STAC will convene subject area experts from both within and outside of the Chesapeake Bay community to objectively review the evidence regarding the past effectiveness of SAV restoration to achieve goals and the potential for enhancing future performance.

2010

    Chesapeake Bay Goal Line 2025: Opportunities for Enhancing Agricultural Conservation

    Tuesday, October 5, 2010 from 9:00am - 4:00pm

    Over 120 individuals and experts met in Hunt Valley, MD on October 5 and 6 to discuss opportunities to enhance agricultural conservation by implementing best management practices in the upcoming state watershed implementation plans (WIPs). The conference brought together agricultural experts from inside and outside the watershed who discussed specific best management practices and agricultural conservation techniques that could reduce nutrient loads to the Chesapeake Bay Watershed. Speakers discussed managing nitrogen, phosphorus, dairy feed, ammonia and manure to reduce nutrient runoff from agricultural lands. Participants discussed which techniques were most likely ready for implementation and acceptance by both policy makers and individual producers. The steering committee is currently summarizing the results of these discussions in a conference report that will be given to the EPA and states following its completion. You can view speakers’ presentations via the links below.

    Review of Land-Use and Land Cover Dataset and Methodology

    Tuesday, September 28, 2010 from 9:00am - 5:00pm
    The US EPA Chesapeake Bay Program (CBP) requested an urgent, short, turn around peer review of certain critical land use and land cover inputs to the Phase 5 Bay-wide watershed model. In responding to the request, STAC assembled a diverse team of experts to triage aspects of specific questions most relevant to the establishment of Bay-wide water quality regulation and provide rapid feedback to the CBP.

    Exemplary Local Stormwater Strategies to Protect and Restore Urban Watersheds: Combining Technology,

    Thursday, May 13, 2010 from 9:00am - 4:00pm

    Since EPA treats urban stormwater as a point source, urban stormwater programs are generally subject to an 'MS4' (municipal separate storm sewer system) permit. MS4 permit conditions are being increasingly driven by the Bay TMDL and the related WIPs. The Bay TMDL is to be completed by December 2010. The states and the District of Columbia will complete the Phase I WIPs by November 2010 and the Phase II WIPs by November 2011. The TMDL will include waste load allocations for regulated stormwater programs. The Phase II WIPs will include county-level load targets which are anticipated to be reflected in MS4 permits. The workshop brought stormwater experts from exemplary local and national stormwater programs to interact with participants and help them plan for the impending Bay TMDL related requirements.

    STAC Review of the Water Clarity and SAV Components of the Chesapeake Bay Program Water Quality and

    Wednesday, March 10, 2010 from 9:00am - 4:00pm
    Late in 2009, the CBP requested that STAC formally review the updated water clarity and Submerged Aquatic Vegetation (SAV) components of the estuarine Water Quality Sediment Transport Model (WQSTM). The objective of the review was to determine the suitability of these components for setting tidal sediment and nutrient allocations as part of the Total Maximum Daily Load (TMDL) process. STAC convened a 5-member independent expert panel to perform the review during a two-day meeting in March 2010, through which the reviewers were informed by CBP modelers and through discussion with the broader Bay scientific community.

2009

    Developing a Protocol for Development and Review of Reduction Efficiencies for Best Management Pract

    Tuesday, October 27, 2009 from 9:00am - 4:00pm
    The Chesapeake Bay Program?s Scientific and Technical Advisory Committee and the Water Quality Goal Implementation Team are sponsoring a series of two workshops to provide a forum for the evaluation of pasture and livestock exclusion practices, current implementation, and existing programs throughout the Chesapeake Bay watershed. The workshops will produce science-based effectiveness estimates for these practices for the Chesapeake Bay Program modeling efforts, as well as to test a draft protocol for the development, review, and incorporation of new and existing best management practices (BMPs) for the Chesapeake Bay Program partnership. The first workshop (October 27-28, 2009) will convene a science panel to develop draft practice definitions and model effectiveness values for initial model placeholders. A second follow-up workshop (date to be determined) will finalize a recommendation report for consideration by the Chesapeake Bay Program partnership using the draft evaluation protocol.

    Application of Reference Curves for Dissolved Oxygen Criteria Assessment

    Monday, August 17, 2009 from 9:00am - 4:00pm
    In October 2006, STAC published its recommendations for the CBP for the use of the cumulative frequency diagram approach (CFD) for defining water quality criteria and to determine water quality criteria attainment. In May 2009, the CBP and its Water Quality Steering Committee requested that STAC re-convene a panel to review several proposed modifications in the application of the CFD approach to the benthic index of biotic integrity (Weisberg et al. 1997). STAC member Doug Lipton, UMD, coordinated the review, carried out by a four-member independent expert panel in June 2009.

    Tidal Sediment Mini Workshop

    Thursday, May 28, 2009 from 9:00am - 4:00pm
    A small group of Chesapeake Bay regional experts on sediments, water clarity, and SAV, along with CBP modelers and managers, convened to discuss Chesapeake Bay Program Water Quality and Sediment Transport Model (WQSTM) suspended sediment, water clarity, and SAV predictions from scenarios run to date, in the context of available data and understanding. The vetted scenarios, results, and recommended course corrections assisted the CBP in making defensible recommendations for tidal sediment allocations in 2010. It also helped identify areas in which additional or alternate information should be used for TMDL development.

    Developing 'Comparable' Small Watershed Monitoring and Assessment Protocols

    Friday, April 24, 2009 from 9:00am - 4:00pm
    In the spring of 2009, STAC sponsored two workshops to derive a short list of comparable field monitoring and assessment approaches to assure quantifiable, comparable responses in the NRCS managed basins under Farm Bill implementation. The workshops addressed: 1) Developing criteria to select small watersheds for enhanced monitoring and assessment of the relation between implementation of management actions and water-quality response; 2) Recommend optimal approaches for several types of monitoring needed in small watersheds: land-use activities, implementation of practices, and water-quality monitoring; and 3) Present ideas for enhanced assessment of the monitoring information in the small watersheds and how to transfer the results.

    Ecosystem Based Management Conference Session: Development of Habitat Suitability Models for Ecosyst

    Tuesday, March 24, 2009 from 9:00am - 4:00pm
    Modeling efforts within the Chesapeake Bay have failed to effectively link water quality and habitat degradation or restoration to changes in living resource populations. Habitat suitability models represent a principal means to develop such associations but have not seen extensive development or application within the Chesapeake Bay ecosystem. A 1.5 day workshop, Co-chaired by Dr.s David Secor and Denise Breitburg (Smithsonian Environmental Research Center), was held in Baltimore as part of the March 2009 Chesapeake Bay Research Consortium’s Ecosystem Based Management Conference. Experts presented state-of-the-art habitat suitability models that ranged from statistical approaches that permit water quality to be translated into living resource distribution maps to dynamic models that track individual oysters and fish as they respond to conditions that vary continuously.

2008

    Chesapeake Bay Cover Crop Enhancement Conference

    Thursday, December 18, 2008 from 9:00am - 4:00pm
    The Chesapeake Bay Cover Crop Enhancement Conference convened 80+ agricultural conservation program staff, researchers, and policy stakeholders across the Chesapeake Bay watershed to champion the formation of state Cover Crop Enhancement Workgroups (CCEWG) to develop and implement state-specific cover crop implementation action plans. In establishing the CCEWGs, the conference helped identify and address critical information gaps, financial and technical needs, obstacles to implementation, and opportunities that would enhance cover crop adoption within the state. The conference also established support for coordination and communication through the Chesapeake Bay Program?s Agricultural Nutrient and Sediment Reduction Workgroup.

    Chesapeake Bay Land Change Model Review

    Tuesday, November 25, 2008 from 9:00am - 4:00pm
    In November 2008, STAC conducted a second technical review of the Chesapeake Bay Land Use Model to respond to the CBP?s request for STAC evaluation. Coordinated by STAC member Chris Pyke, USGBC, a team of independent experts were convened to review the CBP?s response to previous STAC recommendations, utility of the approach for watershed modeling, responsiveness of the Phase Five watershed model to land use/land cover scenarios, and the relevance of the modeling products to decision makers and stakeholders.

    Requested Review of Procedures of the UMD/MAWP Best Management Practive Project Year 2

    Monday, October 20, 2008 from 9:00am - 4:00pm
    In June 2007, the University of Maryland/Mid-Atlantic Water Program (UMD/MAWP) requested that STAC review certain aspects of their Best Management Practice (BMP) Project. The two-year Project was charged with developing BMP reduction efficiencies for use in the Phase V Chesapeake Bay Model. At the end of year 1, the tasks requested of STAC were to: 1) review the relative rankings of BMP reduction effectiveness coefficients, and 2) review the process of developing BMP reduction effectiveness coefficients. The STAC Task Force directed to address the UMD/MAWP request did not consider the relative rankings of BMP reduction efficiencies to be a scientific issue, but instead addressed the second task, that of reviewing the logic and process whereby MAWQ/UMD assessed recommendations made by experts and, in some cases, modified such recommendations. At the end of the Project year 2, UMD/MAWP returned to STAC with a request for review of the process developed to produce Bay Model reduction effectiveness estimates for a second set of BMPs, outcomes from which are summarized here.

    Development and Implementation of a Process for Establishing Chesapeake Bay Program's Monitorin

    Monday, June 23, 2008 from 9:00am - 4:00pm
    In response to request from the CBP, STAC conducted a three-part review in partnership with the CBP representatives, and the CBP Watershed Partners Senior Managers in order to provide framework and method for establishing the priorities and objectives of the monitoring program. It meets the larger mission specified by external reviews by the General Accountability Office (GAO) and the Office of Management and Budget (OMB) by providing a repeatable, defensible, and collaborative process. The outcome of this process can be used to re-align, if necessary, the monitoring program with the objectives of the CBP partnership. This process does not make, or endorse, specific recommendations for monitoring program re-design.

    Water Quality Credit Trading: Issues in Uncertainty, Evaluation, and Verification

    Friday, May 16, 2008 from 9:00am - 4:00pm
    STAC convened regional nutrient trading experts for a one day workshop to identify issues related to water quality credit trading, and develop a framework to evaluate nutrient trading programs within the Chesapeake Bay watershed. The framework was summarized in a white paper and shared with each of the Chesapeake Bay jurisdictions for input on how on how effective its use will be in on-the-ground implementation. This project was at the direct request of STAC, which established the working group to enhance their understanding of what makes an effective nutrient trading program.

    Chesapeake Bay Watershed Model Phase V Review

    Wednesday, January 23, 2008 from 9:00am - 4:00pm
    In the fall of 2007 STAC recruited the authors as an independent panel of experts to review the Chesapeake Bay Watershed Model (CBWM) Phase 5 effort and make recommendations for its enhancement. The review panel met as a group on January 23 - 25 in Annapolis, MD. Limited documentation on the Phase 5 CBWM was provided in advance. Presentations were given to the review team by Richard Batiuk, Gary Shenk, and Lewis Linker of the EPA CBPO. The panel was charged with assessing 1) work to date, 2) the model's suitability for making management decisions at the Bay Watershed and local scales, and 3) potential enhancements to improve the predictive ability of the next generation of the CBWM. Their comments and recommendations are summarized in a report that was submitted to the CBP following the review?s completion.

    Modeling in the Chesapeake Bay Program: 2010 and Beyond

    Thursday, January 17, 2008 from 9:00am - 4:00pm
    The Scientific and Technical Advisory Committee of the CBP, with the support of the CBP Modeling Subcommittee and the Chesapeake Community Modeling Program (CCMP), is sponsoring a workshop to discuss future directions for modeling in the CBP. The broad objectives of this workshop include: (1.) exploring the challenges and opportunities likely to face CBP modeling efforts in the next 5-10 years, and (2.) formulating recommendations to help the CBP plan for the future and maximize the utility and openness of its modeling efforts. Presentations and open discussion will address many topics relevant to these broad objectives, including: (1) incorporation of new numerical techniques (e.g., data assimilation), (2) improved co-operation among management and research modelers through open-source community modeling approaches, (3) coupling with larger scale atmospheric and oceanic models, and (4) better integration with monitoring efforts. Additional topics will be generated by participants at the workshop.

2007

    Assessing the Feasibility of Developing a 4-D Interpolator for Use in Impaired Waters Listing Assess

    Sunday, December 9, 2007 from 9:00am - 4:00pm
    The CBP has been collecting environmental data (e.g. temperature, dissolved oxygen) at monitoring sites throughout the Bay since 1985. These data provide the potential for developing data products that can be used to inform and guide water quality decisions and policies for Chesapeake Bay. Thus, several groups within the Chesapeake Bay community have expressed an interest in a four-dimensional (4-D) interpolator, and/or have begun efforts to develop one. To obtain guidance and inputs on how to develop a 4-D interpolator and to identify approaches for its use with the Bay monitoring data, the Chesapeake Bay STAC convened an expert panel in December 2007 to review possible approaches for integrating and synthesizing the Bay data sets to provide products that are useful for water quality decisions, and develop an approach for moving forward with analyses of the Bay environmental data sets. The overall purpose of the review was to identify a core set of functionality requirements and to facilitate the coordination of development efforts now ongoing by several groups, so that future products will meet the needs of CBP partners.

    Developing Integrated Monitoring and Modeling Programs for Mercury in the Chesapeake Bay Region

    Tuesday, October 2, 2007 from 9:00am - 4:00pm
    The STAC and NOAA funded workshop provided a forum for regional, national, and international researchers, modelers, and regional state agency representatives to assess and evaluate current monitoring and modeling programs for reducing one of the Chesapeake Bay?s more persistent, bioaccumulative toxins: Mercury. Experts put forth recommendations to better coordinate existing mercury monitoring programs and to address current management needs. In addition, workshop participants outlined initial steps for developing the first ecosystem based model for mercury accumulation in the Chesapeake Bay region. A summary of the workshop and its recommendations will be available in a STAC brochure shortly.

    Understanding Fertilizer Sales and Reporting Information

    Tuesday, May 1, 2007 from 9:00am - 4:00pm
    STAC and the Chesapeake Bay Program?s Nutrient Subcommittee co-hosted a workshop in May 2007 aimed to initiate a discussion that would address some of the key concerns with current state fertilizer accounting systems and provide recommendations for syncing state collection methods. A detailed summary of the workshop discussion and recommendations can be found in the following workshop proceedings report. Links to the workshop presentations are also available for download. These initial collaborative steps will serve well in the Bay Program?s current and future efforts to improve Chesapeake Bay water quality.

    Quantifying the Role of Wetlands in Achieving Nutrient and Sediment Reductions in Chesapeake Bay

    Wednesday, April 4, 2007 from 9:00am - 4:00pm
    Most wetland projects in the Chesapeake watershed involve enhancement of existing wetland acreage, raising the question of whether wetlands that are enhanced in function are better able to retain nutrients and sediments than degraded wetlands, and if so, to what extent these projects should be credited toward implementation of State Tributary Strategies. The objective of this organized session was to determine if a scientific foundation exists to quantify the beneficial effects of wetland enhancement on nutrient and sediment processes. Outcomes of the workshop inlcude a summary matrix of nitrogen, phosphorus and sediment removal rate results normalized for wetland class, drainage area, residence time, flow rate, physiographic region, etc.

    Submerged Aquatic Vegetation Reproductive Ecology

    Tuesday, March 6, 2007 from 9:00am - 4:00pm
    Submerged aquatic vegetation (SAV) experts both from within and outside the watershed exchanged a wealth of research and experiential findings regarding the reproductive ecology of Chesapeake Bay SAV species and its application to restoration science. Presentation and discussion sessions generated substantial information for a forthcoming proceedings document, while also revealing many areas of continuing research needs.

    Developing Environmental Indicators for Assessing the Health of the Chesapeake Bay Watershed

    Tuesday, February 20, 2007 from 9:00am - 4:00pm
    To address the GAO?s request for the implementation of an integrated assessment approach and an improved reporting approach, the Chesapeake Bay Program (CBP) has focused on revising its environmental indicators to address four key areas of concern: (1) bay and watershed 'stressors,' (2) restoration activities, (3) the health of the bay, and (4) the health of the watershed. The CBP successfully targeted indicator development for areas 1-3, but lacked adequate science-based indicators for assessing the health of the watershed. STAC and the CBP Monitoring and Analysis Subcommittee teamed up to host a workshop to address these needs. 30 plus regional experts were convened to identify watershed indicators and associated stressors for three principle topics: water quality, habitat, and living resources. Recommendations, which are summarized in the workshop report, provide direction on the types of environmental indicators that should be used to assess the health of the Bay watershed, and indication of critical information gaps and monitoring needed to produce these indicators.

    Bioavailability of Organic Nitrogen from Treated Wastewater

    Thursday, February 1, 2007 from 9:00am - 4:00pm
    EPA requested guidance from STAC regarding the bioavailability of organic nitrogen (ON) released through wastewater treatment plant effluents (effluent organic nitrogen or EON) and the appropriateness of a proposed assay for assessing its bioavailability. According to Virginia law, dischargers can argue cases before a nutrient control board to increase their discharge allowances or caps based on their assessment of EON bioavailability. A facility in Virginia employed a bioassay similar to a biochemical oxygen demand (BOD) assay in an attempt to demonstrate that a large fraction of their EON was biologically unavailable. In the short term, EPA requested guidance on: 1) whether EON is bioavailable in the proximate and ultimate receiving waters, and 2) whether the assay employed by the Virginia facility is appropriate for assessing EON bioavailability. In the longer term, the EPA has sought guidance on developing appropriate assays of EON bioavailability. To address this request, STAC formed an ad hoc committee of experts, including wastewater engineers, biogeochemists, and estuarine ecologists, who prepared the accompanying report on their findings.

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

    Tuesday, January 30, 2007 from 9:00am - 4:00pm
    A 'sedimentshed' is a concept used to determine sediment sources affecting the water clarity of near-shore submerged aquatic vegetation (SAV) grow zones of the Chesapeake Bay. Decreases in water clarity due to massive sediment input from the surrounding watershed and sediment resuspension has had a direct impact on the health of SAV beds, and in turn on the health of aquatic life. In 2006, the Chesapeake Bay Program?s Sediment Workgroup began developing an introductory report on 'sedimentsheds? in hopes that identifying both the spatial location and categorical components of sediment sources would ensure the use of efficient and effective management strategies for attaining water clarity goals. The STAC funded workshop provided a forum for the Sediment Workgroup to share a draft of the Sedimentshed Report with watershed-wide expertise for review and comments. The group was also able to collect invaluable insight on sediment, and its impacts on water clarity and SAV health.

2006

    Review of the Chesapeake Bay Program CFD and Interpolator

    Friday, October 6, 2006 from 9:00am - 4:00pm
    In accordance with the Chesapeake 2000 Agreement, the CBP implemented important modifications to 1) ambient water quality criteria for living resources and, 2) the procedures to determine attainment of those criteria. A novel statistical tool for attainment, termed the Cumulative Frequency Diagram (CFD) approach, was developed as a substantial revision of previous attainment procedures, which relied upon a simple statistical summary of observed samples. The approach was viewed as advantageous in its capacity to represent degrees of attainment in both time and space. In particular, it was recognized that the CFD could represent spatial data in a synoptic way: data that is extensively collected across diverse platforms by the CBP Water Quality Monitoring Program. Because the CFD approach is new to Bay Program applications, underlying statistical properties need to be fully established. Such properties are critical if the CFD approach is to be used to rigorously define regional attainments in the Chesapeake Bay. In Fall 2005, the STAC charged a workgroup of experts in providing review and recommendations on the CFD attainment approach. As terms of reference used were the guidelines of Best Available Science published by the American Fisheries Society and the Estuarine Research Federation.

    Chesapeake Bay Program Scientific and Technical Assessment Committee Monitoring, Assessment and Indi

    Saturday, September 9, 2006 from 9:00pm - 10:00pm
    In June 2006, the CBP requested STAC to review the Status and Health Report of the Chesapeake Bay. A subcommittee of STAC members was convened to address specific questions from the CBP to determine 1) whether appropriate measures have been established to assess ecosystem health, 2) whether appropriate measures have been established for assessing restoration efforts, and 3) whether these assessments clearly and accurately describe the Bay?s health and restoration status. Outcomes from the review are summarized in the accompanying report.

    Review of the Revised Toxics of Concern List

    Wednesday, May 17, 2006 from 9:00am - 4:00pm
    This workshop provided a forum to review the revised Toxics of Concern (TOC) list. This included assessing the appropriateness of data sources and how they were utilized, the methodology of the developed chemical ranking system used to prioritize chemicals, and clearly defining the intended uses of the list given its limitations and uncertainty. Furthermore, the review provided guidance for determining a 'cut-off' marker for the full list of prioritized chemicals in order to determine which chemicals are Toxics of Concern, Toxics of Potential Concern, or neither. The review was integral to meeting the CBP Toxics Subcommittee's commitments to the Chesapeake 2000 agreement to track 'Chemicals of Concern.'

    Assessing Cumulative Impacts of Shoreline Modification

    Thursday, February 9, 2006 from 9:00am - 4:00pm
    The Chesapeake Bay STAC and NOAA?s National Centers for Coastal Ocean Science propose a cooperative workshop to assess the cumulative effects of shoreline modification. Workshop participants will explore the economic methods used to calculate marginal costs and test the application of these methods to assessing cumulative impacts of shoreline modification. Specifically, participants will: 1.) review the current state of knowledge on the use of the marginal principal in forecasting cumulative impacts; 2.) evaluate the application of this principal to assess and predict the environmental, social, and economic impacts of cumulative shoreline modification (does it make sense, what are the limitations, what might be the applications and benefits); 3.) discuss development of the tool (what data are necessary, how should the analysis be bounded and presented); and 4.) suggest a process for competing the work (who provides support, who should collaborate, timelines, etc.).

2005

    Kick-off Session for Developing Land Use Projections and Alernative Future Scenarios for the Phase 5

    Thursday, September 1, 2005 from 9:00am - 4:00pm
    At the September 2005 CBP Reevaluation Workshop, the implications of continued population growth and development on meeting and maintaining nutrient load limits were discussed. The Reevaluation Workshop partners agreed on the need for projecting future land uses, animal populations and point source loads beyond 2010 out to 2030, including intermediate projections between base year and 2030. The Land Growth and Stewardship Subcommittee (LGSS) was assigned the lead responsibility for carrying out this work, working closely with the Nutrient and Modeling Subcommittees as well as the Local Government Advisory Committee. LGSS is developing growth simulation models that can better predict patterns of urban development associated with population increases and have developed this workshop working with STAC as a co-sponsor. The workshop aimed to: 1) provide background on tools to develop land use projections and alternative future scenarios (Urban growth models and Phase V model) and set the stage for the STAC review of the urban growth models in February 2006; 2) discuss the input to the urban growth models (such as impervious cover, population and employment forecasts); 3) begin discussion on the alternative future scenarios to be analyzed; and 4) agree to roles and responsibilities to develop land use projections and alternative future scenarios as outlined in the timeline.

    Review of the Chesapeake Bay Watershed Modeling Effort

    Tuesday, May 17, 2005 from 9:00am - 4:00pm
    In the spring of 2005 the STAC recruited the authors as an independent panel of experts to review the Chesapeake Bay Watershed Model (CBWM) effort. The stated purpose of the review was to address the following broad questions: (1) Does the current phase of the model use the most appropriate protocols for simulation of watershed processes and management impacts, based on the current state of the art in the HSPF model development? (2) Looking forward to the future refinement of the model, where should the Bay Program look to increase the utility of the watershed model? The independent panel of experts was convened for a two day meeting in Annapolis, MD to review the Model and respond to the charge questions, summarized in the accompanying report.

    Recommendations for Refinement of a Spatially Representative Non-tidal Water Quality Monitoring Netw

    Monday, May 9, 2005 from 9:00am - 4:00pm
    Prior to 2005, existing non-tidal water quality monitoring programs within the Chesapeake Bay watershed did not meet the Chesapeake Bay?s restoration priorities since a majority of these programs were only designed to address specific goals by various agencies. The CBP?s Non-tidal Water Quality Monitoring Workgroup began designing a monitoring network for the non-tidal Chesapeake Bay watershed to measure nutrient and sediment concentrations and loads, and for assessing progress toward meeting the water quality criteria of the Bay and its tributaries. Initial designs of a sampling network were completed, and 188 new and existing candidate stations were identified for inclusion in the network. It was believed that if all of the candidate stations were implemented, the CBP could address the objective of measuring the status and trends of nutrient and sediment concentrations and loads in the tributary strategy basins. However, it was not clear how well these stations address model calibration and verification issues or whether they would be capable of detecting and evaluating the effectiveness of BMPs designed to reduce sediment and nutrient loads to the Bay. To meet the intended objectives of the network, the Workgroup requested STAC to assess the spatial representativeness of current and proposed sites. Information gained from the review was used to enhance network design and prioritize the selection of future monitoring sites in light of limited funding for the monitoring network.

    Urban Stormwater Sediment: Sources, Impacts and Control

    Friday, April 29, 2005 from 9:00am - 4:00pm
    Sediment has long been recognized as a major water quality problem in the Chesapeake Bay and its tributaries. The Bay agreement, Chesapeake 2000 (C2K) identifies sediment as a major source of impaired water quality, comparable with nutrients. Impacts from sediment include loss of riparian and streambed habitat, turbidity that prevents or impedes the growth of underwater grasses and conveyance of toxic chemicals and other pollutants that impair water quality. Sediment associated with urban stormwater is a significant part of that problem. Urban stormwater causes streambank erosion, erosion from construction sites, resuspension of previously deposited ('legacy') sediment and carries suspended solids from urban areas. Monitoring and modeling information are not sufficiently developed to systematically document the scope and impact of the sediment problems in the Bay watershed. The workshop will blend science, technology and management.? It will bring together experts to document the current state of knowledge and identify priorities and recommendations for advancing scientific knowledge, improving monitoring and modeling and improving technology and management practices.

    Integrated Land Use and Watershed Management

    Monday, March 7, 2005 from 9:00am - 4:00pm
    Land use has a direct impact on downstream water quality and habitat. As land is converted from forests and wetlands to agricultural uses, runoff increases causing erosion and carrying an array of pollutants. Further conversion of land for housing and commercial uses brings increasing imperviousness, greater rates of runoff, and additional problems of erosion, pollution, and habitat loss. These state specific workshops will promote the integration of watershed or natural resource management into local land use planning to ensure the implementation of local water quality/quantity, habitat, and forest buffer goals (and ultimately C2K goals). Relevant county examples will be highlighted and discussion on the advantages/disadvantages of each example will be encouraged.

2004

    Evaluating the Design and Implementation of the Chesapeake Bay Shallow Water Monitoring Program

    Tuesday, November 30, 2004 from 9:00am - 4:00pm
    STAC held a workshop that reviewed the design of the Chesapeake Bay Shallow Water Monitoring Program to ensure that the design meets the objectives established by the Shallow Water Monitoring Design workgroup, while optimizing achievable temporal and spatial coverage with limited resources. The second objective was to solicit input from workshop participants and technical experts in the field of monitoring on outstanding issues regarding implementation, data analyses and model integration. Prior to the STAC workshop, documentation on the tidal monitoring design process was made available to workshop participants. Discussions focused on development of criteria to optimize site selection and monitoring duration, and to enhance coordination with living resource and local source monitoring efforts.

    Urban Tree Canopy

    Monday, May 24, 2004 from 9:00am - 4:00pm
    STAC responded to a request from the Chesapeake Bay Program?s Forestry Workgroup to create a workshop that would help partners implement the urban canopy cover goals of the Riparian Forest Buffer Directive No. 03-01, signed by the Chesapeake Executive Council in December 2003. The workshop brought together urban forestry researchers and practitioners from federal, state, and local levels in the Chesapeake Bay region and beyond to: define the water quality benefits that urban tree canopy provides and how these can contribute toward Chesapeake Bay Program goals; address what an appropriate canopy cover goal for urban watersheds is to produce measurable water quality and quantity benefits; and synthesize knowledge and ideas for the creation of a guide for local governments and community organizations to use in conducting urban canopy cover assessments, developing canopy cover goals, and implementing canopy cover enhancement strategies. The workshop and its report are technology transfer tools intended to help local jurisdictions accomplish the directive?s goals. The workshop and proceedings assist local practitioners in understanding the role of urban tree canopy cover in addressing the goals of the Chesapeake 2000 agreement; learning about various data sources for, and methods of, quantifying tree canopy cover; learning how to set appropriate canopy cover enhancement goals; and, strategies for implementing those goals.

    Spatial Management in the Chesapeake Bay: Applications, Issues, and Opportunities

    Thursday, April 15, 2004 from 9:00am - 4:00pm
    STAC sponsored a workshop on Spatial Management, including protected areas, that was directed primarily at identifying and defining issues, concerns, and opportunities for increased implementation of spatial management. The workshop was held on April 13 -14, 2004 and was the first of two workshops that STAC will sponsor on this topic. Workshop participants represented a diverse group of stakeholders, management agencies, and academia. The workshop report emphasizes that, while workshop participants were supportive of spatial management, many issues and concerns must be addressed. These include: 1) stakeholder involvement at the outset and throughout development of spatial management planning; 2) the need for an inventory of present spatial management in the Bay ecosystem; 3) the need for science to define how spatial management could perform better than conventional management approaches; 4) the need for evaluation and monitoring of any spatially managed areas and benefits/costs of their implementation; and 5) the need to consider access privileges and the concern over ?permanency? of implementation in the absence of sufficient evaluation of performance. The report also indicates broad opportunities for expansion of spatial management in support of Chesapeake Bay resource management and protection, especially for Habitats and Biodiversity Conservation, and potentially for Fisheries Management. Results and recommendations of the present workshop will serve as a framework and foundation for the second workshop that will address technical issues related to design and implementation of spatially managed areas.

    Spatial Management in the Chesapeake Bay II

    Thursday, April 1, 2004 from 9:00am - 4:00pm
    In April 2004 STAC sponsored a workshop on Spatial Management in the Chesapeake Bay that was directed at identifying and defining issues, concerns, and opportunities for increased implementation of spatial management. This follow-up effort will be a two part series of workshops examining the 'rules and tools' available and still needed to explore and implement spatially managed habitat restoration in the Chesapeake Bay.

    Coupling Water Quality and Upper Tropic Level Modeling for Chesapeake Bay

    Thursday, January 8, 2004 from 9:00am - 4:00pm
    The Chesapeake Bay Program has invested in several numerical models to address issues related to management of the estuary. The Chesapeake Bay Water Quality Model (CBWQM) has been the primary tool used to forecast estuarine ecosystem responses to variations in nutrient and sediment inputs from the watershed. Although this model includes variables related to food supply at lower trophic levels (plankton, benthos) and related to benthic habitat conditions (O2, SAV), it does not simulate dynamics of exploited fisheries populations. Many of the goals of the Chesapeake 2000 agreement relate to interactions between water and habitat quality and populations at upper trophic levels. This workshop helped us address the following goals: to assess capabilities and limitations of CBWQM and Ecopath with Ecosim for addressing interactions between water quality, habitat condition, food availability, and fisheries population dynamics; to identify possible mechanisms by which these two models could interact via direct or indirect coupling; and to consider alternative modeling approaches for simulating dynamic interactions between exploited animal populations and the ecosystems that they inhabit. The workshop discussions led to several tentative conclusions regarding model coupling and recommendations for future action.

2003

    Identifying and Prioritizing Research Required to Evaluate Ecological Risks, Benefits, and Alternati

    Tuesday, December 2, 2003 from 9:00am - 4:00pm
    It is important that sound scientific information be available to inform the decision-making process with regards to the potential introduction of C. ariakensis to the Chesapeake Bay. Neither the risks, potential consequences nor the potential benefits of introducing C. ariakensis to the Chesapeake Bay are adequately known. The current understanding of the biology and ecology of C. ariakensis is insufficient to predict whether an introduction will provide desired benefits or have a substantial adverse impact within the Bay or other Atlantic Coast estuaries over short or long time scales. STAC convened a workshop of research scientists in Annapolis on December 2-3, 2003 to discuss and prioritize research needed to fill critical gaps in our ability to predict risks and benefits that might result from an introduction of diploid C. ariakensis to Chesapeake Bay.

    Review of the Fisheries Ecosystem Plan for the Chesapeake Bay

    Saturday, November 1, 2003 from 9:00am - 4:00pm
    The NOAA Chesapeake Bay Office requested the assistance of the STAC to coordinate a peer review of the Fisheries Ecosystem Plan (FEP) for Chesapeake Bay. Two members of STAC agreed to undertake coordination of the review. Originally, the document was provided to five individuals who had initially agreed to conduct a review. Over the course of the review, three reviewers opted not to complete the task so that the final review consisted of three reviews from experts outside the region. In addition to the two review coordinators, one other member of STAC also provided comments.

    Quantifying the Environmental Benefits of Activities that Promote a Stewardship Ethic and Effect Beh

    Monday, September 15, 2003 from 9:00am - 4:00pm
    STAC responded to a request from the CBP Communications and Education Subcommittee (CESC) to advise them in their efforts to quantify the benefits of a mass media campaign. On September 15, 2003, STAC convened a one day workshop for presentations by experts who have participated in efforts to quantify behavior changes, especially those affected as a result of a campaign of this scale, as well as experts who have conducted mass media campaigns resulting in behavior change. The purpose of the workshop was to provide recommendations for the types of information that need to be collected and the methodology for collecting, tracking and reporting that information in order to measure behavior change(s) effected as a result of the CESC mass media campaign and campaign methodology to effectively measure and to increase response rate/behavior change. Following the presentations, select members of CESC and STAC, and the presenters participated in facilitated discussions to reach consensus on recommendations and a plan of action for the following topics: campaign plans, target audience, expected response rate, tasks for completion and information that should be collected by the ad firm, quantifying benefits, and ways to encourage 'piggybacking' on the campaign by other organizations and outreach vehicles.

    Technical and Economical Feasibility of Nutrient Removal Limits of Treatment

    Tuesday, May 20, 2003 from 9:00am - 4:00pm
    The Chesapeake 2000 agreement calls for new nutrient reductions to remove water quality impairments in the Chesapeake by 2010. This ambitious goal will drive development and application of new technologies to close the gap between existing program capabilities and the new pollution reduction goals. Ultimately, the application of better, more capable technologies will better serve the Bay Program principals of equitable, cost effective pollutant reductions that are fully protective of the Chesapeake. This is a forward looking workshop directed toward providing information on innovative nutrient removal technologies for point sources that will assist in achieving the 2010 nutrient reduction goals. To explore wider application of these technologies in the Chesapeake watershed, a two-day workshop will be conducted on advanced technologies, which can be applied in the Chesapeake Tributary Strategies in order to achieve ambitious 2010 nutrient reduction goals. The purpose of the workshop is to 1) improve understanding of new point source treatment technologies, 2) identify and understand BNR nutrient reductions beyond 8 mg/l in the watershed and in the rest of the country, 3) examine zero-discharge technologies such as spray irrigation or other water reclamation practices for nutrient from wastewater treatment plants, 4) examine how new point source technologies can be best demonstrated and encouraged in the Chesapeake watershed.

    Planning to Develop Stream Corridor Restoration Goals for 2004

    Wednesday, May 7, 2003 from 9:00am - 4:00pm
    This workshop will promote science-based approaches to assist the Chesapeake Bay Program partner jurisdictions and their local partners in developing or enhancing existing efforts to meet the following Chesapeake 2000 goal: 'By 2004, each jurisdiction, working with local governments, community groups and watershed organizations, will develop stream corridor restoration goals based on local watershed management planning.' The workshop will focus the cooperative effort of scientists and managers to assist jurisdictions in determining how they will begin or continue working toward setting these integrated goals. The objective of the workshop is to identify common elements to consider when establishing jurisdictional stream corridor restoration goals by 2004. The products of the workshop will be recommendations for how to begin or continue developing stream corridor restoration goals in each jurisdiction that integrate existing programs and planning efforts. Participants will include scientists and managers from Chesapeake Bay Program partner jurisdictions, academic institutions, and non-government organizations who are engaged in stream corridor evaluation, restoration, and protections, as well as local government experts who are engaged in local watershed management planning.

    Innovation in Agricultural Conservation in Chesapeake Bay: Evaluating Progress and Addressing Future

    Tuesday, May 6, 2003 from 9:00am - 4:00pm
    It is now apparent that restoring the Chesapeake Bay will require nutrient and sediment reductions far beyond those currently achieved. The Chesapeake Bay Program recently agreed to new capped loads of 175 million pounds per year of nitrogen and 12.8 million pounds per year of phosphorus delivered to the Chesapeake Bay. Watershed farmers have been leaders in implementing conservation and nutrient management plans and other traditional conservation technologies. However, all sources of nutrients and sediments to Chesapeake Bay, including agriculture, will need to achieve major additional reductions while assuring that reductions from current practices are realized and maintained. Developing meaningful strategies to meet these goals will require scientific assessment of current, emerging and potential practices, programs and policies to assure that all opportunities for reductions are realized. This forum will brought together leading experts on various aspects of agricultural nutrient pollution control to discuss current, emerging and future practices, technologies and policies that can help achieve needed reductions within a sustainable agricultural system. Speakers provided their vision for innovation based on recent, emerging and future innovation while discussion among scientists, engineers, and economists broadened and diversified the vision. The forum also included discussion of factors that influence adoption of innovation and policies and approaches to implementing innovation.

2002

    Emerging Contaminants of Concern in the Chesapeake Bay Watershed

    Friday, October 18, 2002 from 9:00am - 4:00pm
    New chemicals are constantly introduced into the environment. Some chemicals have been introduced into the environment for some time and we are only just becoming aware of their distribution and potential effects. This workshop helped to assess the risk associated with a few emerging contaminants, such as alkyl phenols and brominated flame retardants, in the Chesapeake Bay ecosystem and identify informational needs for researchers and managers interested in preventing bioaccumulative toxic impacts. By utilizing and linking local and national experts and research on these contaminants, managers will be better armed to understand the risks associated with these contaminants in the environment. The goals of the workshop were to (1) evaluate the available information on the occurrence and potential consequences of emerging chemicals in the Chesapeake Bay, and to (2) discuss how management, regulatory, monitoring, and research programs can better anticipate possible issues resulting from the introduction of new chemicals into commerce. The workshop attendees consisted of a mixture of scientists actively studying emerging chemicals in the Chesapeake Bay, water quality managers responsible for assessing and managing potential risks associated with these chemicals, and other interested parties.

    Impediments to Environmentally Sensitive and Low Impact Development and Design

    Thursday, October 10, 2002 from 9:00am - 4:00pm
    The objective of these workshops was to address impediments to what is commonly referred to as 'environmentally sensitive' or 'low impact' development at the subdivision scale and at the design scale for the features of streets, conservation of vegetation, and site preparation. These items are identified in 'better site design' publications published through the auspices of the Chesapeake Bay Program, the Commonwealth of Virginia, and others. The question that was addressed by workshop participants was 'why are not these principles more evident in actual on-the-ground development practices?' This subject is addressed in the Chesapeake 2000 commitment 4.2.2 which calls for states and local governments to identify and remove state and local impediments to low impact development designs to encourage the use of such approaches and to minimize water quality impacts. A product of this workshop will be a matrix or summary chart that identifies the impediments associated with the principles; options as to their being overcome within each jurisdiction; and, any identified actions that need to be accommodated. Participants in the workshops included individuals who are familiar with the laws governing structure in PA, MD, and VA who will address the reality of why there is not a broader application of these principles on a daily basis. In addition, the building community was also represented.

    Non-native Oysters in the Chesapeake Bay

    Tuesday, October 8, 2002 from 9:00am - 4:00pm
    Through requests from the regional research, management, and industry communities, the National Academy of Sciences (NAS) recently agreed to '?examine the ecological and socio-economic risks and benefits of open water aquaculture or direct introduction of the non-native oyster, Crassostrea ariakensis, in the Chesapeake Bay.' Through support from the US EPA, NOAA, US FWS, MD DNR, Virginia Sea Grant, Maryland Sea Grant, and Connecticut Sea Grant, the NAS has convened an experts committee to review all pertinent information relevant to this issue. As part of this effort to gather as much information as possible, the Scientific and Technical Advisory Committee (STAC) of the Chesapeake Bay Program (CBP) co-sponsored with the NAS a two day meeting that convened regional researchers, managers, watermen, and industry representatives to provide short summaries of C. ariakensis related materials for NAS Committee deliberations. Meeting topics were derived from submitted suggestions and Committee needs.

    Suspension Feeders: A Workshop to Assess What We Know, Don't Know, and Need to Know to Determine The

    Monday, March 18, 2002 from 9:00am - 4:00pm
    The Chesapeake 2000 agreement establishes a clear management objective 'By 2004 assess the effects of different population levels of filter feeders such as menhaden, oysters and clams on Bay water quality and habitat.' (Section 1.4.1) The overall purpose of the workshop was to better determine if the Chesapeake Bay community can fully address this commitment by the desired date. A two-day workshop brought together resource managers and scientists to fully explore the feasibility of using existing ecosystem process (EPM) and/or individually based models (IBM) to address this and other commitments related to filter feeders. The principal topic of this workshop was to characterize the primary filter feeders of the Bay both past and present. The meeting objective was to identify the existing models available to assess the impacts of those primary filter feeds on the Bay's water quality and habitat. Particular attention was focused on oysters and menhaden as potential management options for nutrient/sediment removal; however, other filter feeders such as zooplankton and epibenthic fauna were also explored. In order to address the commitments, a modeling framework was developed that includes both water quality and ecosystem processes for assessing ecosystems that contain primary filter feeders.

    Present Status and Future Trends in Estuarine Monitoring Using Remote Sensing Technology: Satellite,

    Monday, January 7, 2002 from 9:00am - 4:00pm
    This workshop was designed to highlight the present and future capabilities of satellite and air-borne sensing technologies to assess water quality and land-use changes in estuarine environments with direct application to the Chesapeake Bay. Experts from within the Bay scientific community, as well as from other estuaries, provided an overview of the technology as well as its application to estuaries and watersheds. The workshop assisted a recommendation made to the Bay Program that they embrace remote sensing technologies to replace or supplement existing monitoring efforts by providing an overview of existing technologies utilized within the Bay as well as from selected other estuaries. The audience of this workshop was made up of Chesapeake Bay Program scientists and managers, and graduate students and academic scientists interested in a review of the field.

2001

    Determining Appropriate Restoration Targets for Fisheries Under Moratorium: American Shad in the Che

    Thursday, December 13, 2001 from 9:00am - 4:00pm
    In November of 1997, the Chesapeake Bay Stock Assessment Committee (CBSAC) held a workshop that focused on the monitoring of alosids. The participants of this workshop concluded that current monitoring was providing useful information on restoration activities being conducted, however, there are monitoring and information gaps concerning stock assessments and tributary specific needs such as population sizes and habitats. STAC conducted a follow up workshop to continue cross-jurisdictional discussions relative to the management of the American Shad. The Chesapeake 2000 agreement calls for the assessment of trends in priority migratory species as well as for the development of tributary specific population targets by 2002. This workshop gathered experts involved in alosid and other migratory species research and monitoring to evaluate the current monitoring approach as it relates to the recovery of American Shad, and these experts discussed the methods by which target population sizes for priority species can be established. Emphasis was placed on identifying and evaluating methods that could be used to develop tributary-specific targets for the restoration of alosid fishes in the Chesapeake Bay.

    Non-nutritive Feed Issues in Chicken Production

    Tuesday, October 2, 2001 from 9:00am - 4:00pm
    This workshop will survey the potential impact of current feeding practices on the ecosystems of the Chesapeake Basin emphasizing the possible effects of pharmaceuticals, hormones, and other additives used in feeds and excreted in animal manures. The workshop is in response to Chesapeake Bay stakeholder recommendations from the Toxics Non-point Source Forum where stakeholders identified animal feed and manure, and its potential for toxic impacts, as an emerging issue. The focus of the workshop will be on agricultural issues with emphasis on water quality and aquatic biota: human health issues will not be addressed. Specific topics will include chicken feed additives, potential environmental impacts of pharmaceuticals and metals, and microbial resistance. These issues need to be addressed within the Chesapeake Bay Basin for the likelihood of occurrence and the potential ramifications.

2000

    Technical Review of the Chesapeake Bay Program's Basinwide Monitoring Program

    Tuesday, December 5, 2000 from 9:00am - 4:00pm
    The Chesapeake Bay Basinwide Monitoring Strategy represented the culmination of a multi-year effort by the CBP to develop and implement coordinated monitoring networks throughout the Chesapeake Bay watershed. This Strategy was a shift from the then-present monitoring process by which different committees independently fund and coordinate monitoring for various components of the system (e.g., nutrients, plankton, and toxic chemicals). The Strategy established program-wide monitoring priorities to conduct ?ecosystem management? of the Bay and more effective utilizes the limited resources and time available for monitoring. Volume I of the Monitoring Strategy identified the information needs of the CBP and defined frameworks for the collection and interpretation of the necessary monitoring data. Upon the release of a draft of the Chesapeake Bay Basinwide Monitoring Strategy Volume I, the CBP?s former Implementation Committee and Monitoring Subcommittee requested that STAC convene an external technical review of the report. The primary objective of the review was to determine the efficacy of the proposed program and to assist in improving the existing monitoring program so that it better assesses the environmental health of the Bay. The review panel was also asked to provide recommendations to conduct 'ecosystem management' within the Chesapeake Bay watershed. An Expert Panel of scientists from outside the CBP was selected whose expertise encompassed land use, fisheries, chemical contaminants, water quality, hydrology, ecosystem modeling, and other ecosystem processes.

    Review of the Chesapeake Bay Water Quality Model

    Tuesday, February 1, 2000 from 9:00am - 4:00pm
    The CBP?s former Implementation Committee (IC) requested that STAC undertake a review of the Water Quality Model in the summer of 1988. The Terms of Reference provided by the IC included four specific areas of analysis, all related to the utility of the model for management needs. Recognizing the need to engage highly qualified technical experts in the review and the value of involving reviewers who had no previous experience and opinions about the model, STAC chose to form a Model Review Team (MRT) to conduct the primary review and advise STAC of its findings and recommendations. Most of the evaluations of the MRT fell on a core group, which included three eminent scientists with broad experience in the dynamics of estuarine ecosystems and the development and use of numerical models.

1999

    STAC Quarterly Meeting

    Thursday, December 9, 1999 from 9:30am - 10:30am
    STAC Quarterly meeting held in the Governor Calvert House in Annapolis, MD on December 9, 1999.

    Related Files:

1997

1990