Slide 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 Slide 2 Agenda Background BayTAS Overview NEIEN Flow Implementation Conclusions & Lessons Learned Slide 3 Background - Clean Water Act Slide 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 Slide 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 Slide 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 12 2010 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 Slide 7 BayTAS Overview - Tracking Tracks TMDLs for 92 Segments for: State, Basin, Segment, Sector and Facility Includes 5.3.0 and 5.3.2 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 Slide 8 BayTAS Overview - Tracking Data tracked for non-significant and significant facilities Details include allocations, DMR data and whether meeting WLA Slide 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 Slide 10 NEIEN BMP Exchange Trading Partner Agreement (CBPO & Jurisdictions) signed in 2004 and $390K grant. Goal to exchange BMP Implementation data by Dec 2010. 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 Slide 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 Slide 12 NEIEN Flow Implementation Schema verification Software & database development Data content inventory Data conversion & standardization Reporting Slide 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 Slide 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 Slide 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 Slide 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 Slide 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. Slide 18 NEIEN Flow Implementation Benefits and Lessons Learned. Continuous Improvement Slide 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 Slide 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 Slide 21 Thank You and Q&A Megan Thynge Deputy Data Center Manager Chesapeake Bay Program Office 410.267.5786 thynge.megan@epa.gov Vladi Royzman Director, Information Technology and Geospatial Services Tetra Tech Inc. 703.385.6000 x333 vladislav.royzman@tetratech.com vladislav.royzman@tetratech.com Marty Hurd Project Manager, Information Technology and Geospatial Services Tetra Tech Inc. 703.385.6000 x331 martin.hurd@tetratech.com martin.hurd@tetratech.com