Industrial Stormwater Best Management Practices Guidebook Version 1.1 – April 2015 Minnesota Pollution Control Agency One regulated facility, Murphy Warehouse, has implemented impressive industrial stormwater management systems. Photo: Murphy Warehouse Company Authors Contributors / acknowledgements Minnesota Pollution Control Agency Version 1.1 Cory Boeck, Josh Burman, Mary West, Melissa Wenzel, Zachary Chamberlain, Jeff Connell, Brian Schwieiss – MPCA Duane Duncanson, Lynne Grigor, 520 Lafayette Road North Version 1.0, 2010 Joe Hauger, Don Jakes, Saint Paul, MN 55155-4194 Lou Flynn, Todd Smith Cynthia Kahrmann, Carie Mathison – 3M, Ken Moon, Sherri Nachtigal 651-296-6300 Andy Erickson – University of Minnesota Julianne Rantala – Metropolitan Council Toll free 800-657-3864 Melissa Wenzel Environmental Services TTY 651-282-5332 Editing and Graphic Design Sharon Sarappo – Xcel Energy This report is available in alternative Version 1.1 Joel Schilling – Schilling Consultant formats upon request and online at Ken Moon, Gail Skowronek, Services LLC www.pca.state.mn.us Aneka Swanson – MPCA Jeff Smith Dwayne Stenlund – Minnesota Version 1.0, 2010 Document number: wq-strm3-26 Department of Transportation Anne Moore, Theresa Gaffey Phyllis Strong Cover photo: Pulp mill by Greg Hickman Carol Pruchnofski Nick Tiedeken – Minnesota Department Cover photo: iStockphoto.com of Transportation Other photo credits: Minnesota Pollution Bruce Wilson Control Agency unless otherwise noted Minnesota Pollution Control Agency www.pca.state.mn.us Industrial Stormwater Best Management Practices Guidebook Introduction .............................................................................................................................................. 1 Chapter 1 Introduction to Industrial Stormwater Best Management Practices. .............. 2 1.1 Introduction to Best Management Practices ..............................................................................................2 Chapter 2 Most common pollutants of concern in industrial stormwater ......................... 4 2.1 Introduction to Total Suspended Solids ......................................................................................................4 2.2 Introduction to Biological Oxygen Demand, Carbonaceous Biological Oxygen Demand, and Chemical Oxygen Demand ...............................4 2.3 Introduction to nutrients (phosphorus and nitrogen compounds) ...................................................5 2.4 Introduction to metals ........................................................................................................................................6 2.5 Introduction to other commonly-found pollutants .................................................................................6 Chapter 3 The Stormwater Pollution Prevention Plan ............................................................ 8 3.1 Preparing a SWPPP ...............................................................................................................................................8 3.2 Implementing a SWPPP ......................................................................................................................................8 3.3 Unique SWPPP considerations ........................................................................................................................8 Chapter 4 No Exposure: The first option for BMPs ................................................................ 11 4.1 No Exposure considerations ..........................................................................................................................11 4.2 No Exposure: Non-structural BMPs ..............................................................................................................12 Chapter 5 Non-structural BMPs for stormwater management ........................................... 14 5.1 Good housekeeping ..........................................................................................................................................14 5.2 Eliminating and reducing exposure ............................................................................................................14 5.3 Salt storage ...........................................................................................................................................................14 5.4 Erosion prevention, sediment control, and runoff management ....................................................14 5.5 Dust control .........................................................................................................................................................15 5.6 Eliminating unauthorized non-stormwater discharges (illicit discharges) ...................................15 5.7 Spill prevention and response procedure .................................................................................................15 5.8 Mercury minimization plan ............................................................................................................................15 5.9 Employee training program ...........................................................................................................................16 Minnesota Pollution Control Agency www.pca.state.mn.us Chapter 6 Structural BMPs for stormwater management ..................................................... 17 6.1 General structural BMP considerations ......................................................................................................17 6.2 Sedimentation systems ....................................................................................................................................17 6.3 Infiltration systems ............................................................................................................................................20 6.4 Filtration systems ...............................................................................................................................................24 6.5 Proprietary treatment systems and mechanical treatment systems ...............................................25 Chapter 7 Facility BMP inspection requirements ................................................................. 29 7.1 What to inspect....................................................................................................................................................29 7.2 Frequency of inspections .................................................................................................................................29 7.3 Documenting inspections ...............................................................................................................................29 7.4 Additional considerations for certain activities and materials ...........................................................29 7.5 Mercury-containing devices ...........................................................................................................................30 7.6 Oil and grease runoff inspections .................................................................................................................30 Chapter 8 Cold climate BMPs and extreme weather ............................................................. 31 8.1 Winter considerations ........................................................................................................................................31 8.2 Extreme weather .................................................................................................................................................31 8.3 Local controls for flooding events .................................................................................................................32 Appendix A Stormwater pollution prevention plan (SWPPP) checklist ................................ 33 Appendix B Stormwater pollution prevention plan (SWPPP) template ............................... 35 Appendix C Monthly inspection template ................................................................................. 45 Appendix D Technical information for structural BMPs .......................................................... 48 Appendix E Stormwater reduction and re-use .......................................................................... 57 Stormwater runoff reduction ...................................................................................................................................57 Stormwater re-use ........................................................................................................................................................57 Appendix F Acronyms and definitions ....................................................................................... 58 Acronyms .........................................................................................................................................................................58 Definitions .......................................................................................................................................................................58 Appendix G References .................................................................................................................. 60 Appendix H Endnotes by chapter ................................................................................................ 61 Appendix I Additional resources................................................................................................