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City of Auburn, Alabama: Outfall Reconnaissance Inventory Program

City of Auburn, Alabama: Outfall Reconnaissance Inventory Program. City of Auburn, Alabama: Outfall Reconnaissance Inventory Program. Prepared for Alabama Water Resources Conference September 4-6, 2013 Orange Beach, Alabama. Presentation Outline. Introduction & Background

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City of Auburn, Alabama: Outfall Reconnaissance Inventory Program

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  1. City of Auburn, Alabama: Outfall Reconnaissance Inventory Program City of Auburn, Alabama: Outfall Reconnaissance Inventory Program Prepared for Alabama Water Resources Conference September 4-6, 2013 Orange Beach, Alabama

  2. Presentation Outline Introduction & Background What is an Outfall Reconnaissance Inventory? Planning, Prioritizing, and Managing Field Investigations Tracking and Documentation Data Review and Analysis Summary and Conclusions

  3. Introduction and Background

  4. Location Tallapoosa Chattahoochee Lee County Population Served – Around 60,000 Phase II Coverage – 60+/- Sq. Miles Storm Sewer – 100+ Miles of Pipe Receiving Waters – 450 Miles of Stream

  5. What is an Outfall Reconnaissance Inventory?

  6. Outfall Reconnaissance Inventory • Involves • Field Location • Documentation • Evaluation • Mapping • Characterization of all permitted and unpermitted discharges to either the MS4 or its receiving waters. • City of Auburn * This includes identification and inventory of other WQ related concerns Iron Floc Anyone?

  7. An Outfall Reconnaissance Inventory Should be Done to: • Meet/Exceed IDDE component of MS4 permit **Can be Low Cost • Familiarization of jurisdiction • ID other concerns (erosion etc.) • ID maintenance concerns • Assess All SS aerial crossings • ID BMP opportunities (restoration) • Most importantly - to gain intimate knowledge of your system

  8. An Outfall Reconnaissance Inventory Should be Completed: • ASAP • Reevaluate every 5 years or sooner • Should arguably be done prior to implementation of ANY on the ground BMP other than education and outreach • Should be performed in dry conditions, preferably at least 72-hours after any significant storm event

  9. Planning, Prioritizing, and Managing Field Investigations

  10. How to Plan for Outfall Reconnaissance • Gather all existing information on storm-sewer system • Gather all cartographic data (GIS if available) • Identify all TMDL or 303(d) listed waters • Delineate receiving basins into manageable units • Prioritize your schedule according to variables of impairment and/or local knowledge

  11. Know Your Limits.Jurisdictional Limits That Is!

  12. Gather Available Data SIMPLE ADVANCED

  13. Prioritization and Scheduling • Watersheds with Approved TMDL’s • Watersheds with 303(d) Listed Waters • Source Water Protection Area (Drinking Water Source) • Watersheds Designated as Critical Habitat • Outstanding Water Resources

  14. A Method of Prioritization 9 7 4 8 6 1 2 10 3 5

  15. Schedule by Density % URBAN LC HEADWALLS per ACRE

  16. Schedule Overlay Start Here!

  17. Getting Started – It Takes Two SAFETY IN NUMBERS

  18. Necessary Equipment Field Vest Spray Paint Field Book Tape Measurer Camera Machete Map ORI Field Sheets Boots Sunscreen Optional GPS Pocket Colorimeter Snake Chaps PVC Caps

  19. Use the IDDE Guidance Manual

  20. How to Manage Your Data

  21. Information Tracking Click Here **A Product of an Interdepartmental Collaboration Between City of Auburn Information Technology and Water Resource Management Departments

  22. Integrative Database

  23. Interdepartmental Benefits Create Custom PDF Reports/Work Orders

  24. Data Review and Analysis

  25. Progress – Year 4 • 3 Watersheds Completed • 225 Miles of Stream Surveyed • 1,161+ Outfalls Mapped and Assessed • 734 Water Quality Concerns Identified • 150+ Sanitary Sewer Aerial Crossings Inspected • Vast Increase in Local Knowledge Base!

  26. By The Numbers Unlikely 79% Potential 19% Suspect 1% Obvious 1%

  27. By The Numbers No 83% Yes 17%

  28. By The Numbers No 92% Yes 8% Highlights Importance of Preventative Maintenance!!

  29. Internal QA/QC

  30. Summary and Conclusions

  31. INTIMATE PHYSICAL KNOWLEDGE OF YOUR WATERSHEDS IS INVALUABLE • ORI Can be Effective and Inexpensive Tool • Planning and Prioritization are Critical • Quality of Data Management will Determine How Much Benefit You Receive From Your Inventory • Share Information with other Departments and Regulatory Agencies!!

  32. Questions??? Daniel Ballard City of Auburn, Alabama Water Resource Management Department dballard@auburnalabama.org (334) 501-7367

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