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Chesapeake Bay Total Maximum Daily Load (TMDL) Tracking Thursday, May 31, 2012 Martin Hurd, Vladislav Royzman, Tetra Tech, Inc. Brian Burch, Megan Thynge,

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Presentation on theme: "Chesapeake Bay Total Maximum Daily Load (TMDL) Tracking Thursday, May 31, 2012 Martin Hurd, Vladislav Royzman, Tetra Tech, Inc. Brian Burch, Megan Thynge,"— Presentation transcript:

1 Chesapeake Bay Total Maximum Daily Load (TMDL) Tracking Thursday, May 31, 2012 Martin Hurd, Vladislav Royzman, Tetra Tech, Inc. Brian Burch, Megan Thynge, US EPA

2 Agenda  Background  BayTAS Overview  NEIEN Flow Implementation  Conclusions & Lessons Learned

3 Background - Clean Water Act

4 Background - What is a TMDL?  Waste Load Allocations for point sources  Load Allocations for nonpoint sources  Reserve capacity sets aside allocation for future development  Margin of Safety allocation accounts for uncertainty

5 Background - Setting TMDL Milestones and Determining Progress  States propose pollution reduction milestones to measure success in their Watershed Implementation Plans (WIPs) PA 2009 commitment for 2012 milestones

6 Background - BayTAS  What is it?  Bay Tracking & Accounting System  Released January 28, 2011  Why Developed?  Required by Executive Order 13508, “Strategy for Protecting and Restoring the Chesapeake Bay Watershed” - May  CBF Settlement Agreement “Begin” to use the system by Jan 31, 2011  What does it Track?  TMDL allocations and reserves  Tracks facility loads  Annual progress and milestones

7 BayTAS Overview - Tracking  Tracks TMDLs for 92 Segments for:  State, Basin, Segment, Sector and Facility  Includes and model version data for delivered and edge of stream  Tracks WLAs for NPDES Point Sources and LAs for Non-Point Sources/Sectors  Stores TMDL Progress and model runs

8 BayTAS Overview - Tracking  Data tracked for non-significant and significant facilities  Details include allocations, DMR data and whether meeting WLA

9 BayTAS Overview - Reporting  GIS data viewer for viewing facility and allocation information  Web Services provide data to BayTAS public site on CSTAT  Excel / Word Management Report  Excel Data Extracts  Live Reports for NEIEN submissions

10 NEIEN BMP Exchange  Trading Partner Agreement (CBPO & Jurisdictions) signed in 2004 and $390K grant.  Goal to exchange BMP Implementation data by Dec  Best Management Practices (BMPs) are provided by jurisdictions and used as inputs to the suite of Bay Models  Results in nonpoint source loadings for given scenario  Submission reports are published in BayTAS

11 NEIEN Flow Implementation  Created common exchange of BMP projects for agricultural, stormwater, and urban BMPs.  Leveraged the existing production BayTAS application  User management, admin functions, automated report publication for stakeholders.  Data from the exchange is consumed and processed for input into the Bay Model, using BayTAS/node functions, to determine load reductions and progress

12 NEIEN Flow Implementation  Schema verification  Software & database development  Data content inventory  Data conversion & standardization  Reporting

13 NEIEN Flow Implementation Coordinator documents conversion rules Rules are loaded directly into system NEIEN Data is supplied and rules are applied Feedback & Review reports available online Jurisdictions supply practice details Start

14 NEIEN Flow Implementation - Data Practice: Fencing Measures: Area Fenced Buffer Area Area Protected Length Fenced Stream Bank Length Average Buffer Width Practice Design Lifespan Cost Per Acre Other Practices: Access Control Stream Protection Stream Exclusion With Grazing Land Management CBPO Practice: Pasture Fencing Practice Design Lifespan Cost Per AcreX

15 NEIEN Flow Implementation – How it really works Rules identify  Unit type (& unit conversions)  Priority of use  Target practice in SB / WSM  Conversion factors (mathematical operators & constants)  Stored procedure associated with record  Scenario Builder input file type  Status & Comments

16 NEIEN Flow Implementation  State partners communicate requests to Admin & submit data  Admin updates system rules table & kicks off progress run  Data converted processed to Scenario Builder & validation reports for state partners

17 NEIEN Flow Implementation Live Reports – what is in the node database Validation against SB Requirements:  Summarized numbers  Status – reason why  Link to details, individual records for the summary row  Diagnostic information for Admin - SP associated with conversion rules.

18 NEIEN Flow Implementation – Benefits and Lessons Learned. Continuous Improvement

19 BayTAS Future Next Steps and Ongoing Efforts  Implementation of planning targets  2-year milestone load reductions  Programmatic milestones  BMP Implementation Verification Tracking  Trading and Offset Transactions  Permit Compliance Schedules  Schema Update and Maintenance

20 BayTAS Future Next Steps and Ongoing Efforts (Continued)  Waste Water Data Enhancement  Data acquisition/loading from state partners  Data QA/QC functionality  Data handling calculations for missing values  Range checks  Parent & Component species summations  Chain of Custody reporting for confirmation  Consolidated source for CBPO applications

21 Thank You and Q&A Megan Thynge Deputy Data Center Manager Chesapeake Bay Program Office Vladi Royzman Director, Information Technology and Geospatial Services Tetra Tech Inc x333 Marty Hurd Project Manager, Information Technology and Geospatial Services Tetra Tech Inc x331


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