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CAFO Designs at Delaware Park Prepared for:

CAFO Designs at Delaware Park Prepared for:. DELAWARE ESTUARY SCIENCE CONFERENCE AND ENVIRONMENTAL SUMMIT. January 23, 2007. Presented by Duffield Associates, Inc. James M. Eisenhardt. CAFO Designs/Environmental Stewardship at Delaware Park. What is Delaware Park?

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CAFO Designs at Delaware Park Prepared for:

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  1. CAFO Designs at Delaware Park Prepared for: DELAWARE ESTUARY SCIENCE CONFERENCE AND ENVIRONMENTAL SUMMIT January 23, 2007

  2. Presented by Duffield Associates, Inc. James M. Eisenhardt CAFO Designs/Environmental Stewardship at Delaware Park

  3. What is Delaware Park? A multi-dimensional establishment featuring horse racing, casino slots, and an 18-hole championship golf course located in Stanton, DE.

  4. Mill Creek Barns and Stables White Clay Creek Located in the fall zone between the Piedmont and Coastal Plain, adjacent to the Mill Creek and White Clay Creek (Wild and Scenic River)

  5. Red Clay Creek Site White Clay Creek Christina River Delaware River Watersheds Taken from NCC eParcelView Map

  6. White Clay Creek (Wild and Scenic River)

  7. Comprehensive Approach to Stewardship • Stream Restoration • Reforestation • Native meadows • Green technology

  8. CAFO • Delaware’s program became effective on September 11, 2005, as required by the EPA under the Clean Water Act • Primary goal is to eliminate the discharge of pollutants • Delaware Park submitted an NOI to comply with CAFO regulations and completed implementation during the spring of 2006 • Concentrated • Animal • Feeding • Operation

  9. A two-fold goal to address the concentration of non-point source pollution as a means to enhance watershed quality Treat run-off from daily equine operations and remove run-off from the stormwater system Direct stormwater run-off away from barns and stables Project Goals

  10. Equine Activity In 2005, this generated 27,006,397 lbs of straw and wood shavings

  11. Wash stalls- carries run-off directly to the sewer system, bypassing the stormwater ditch system Manure bins- carport roofing limits potential for nutrient run-off Treating Daily Equine Operations

  12. Wash stalls Concrete pads Drains directly to sewer system

  13. Manure bins Carport roofing system

  14. Rain gardens Bio-retention facility Treating run-off from parking areas

  15. Green technology BMP “best management practice” Grading Plant Material Components of rain gardens

  16. Reduces run-off velocity Heavier material settles out (sedimentation) Allows plant material more time for water uptake Helps remove excess nutrients and bacteria Grading

  17. Native plant material Plugs vs seeds Acclimates and establishes quickly Limits erosion potential Reduces invasive species Plant Material

  18. Rendering designed by RLA

  19. Drainage ditches Before

  20. Before (cont.) Drainage ditch

  21. Grading

  22. Plant installations

  23. Near Project Completion

  24. Rain Event Ponding water

  25. First Growing Season Sedimentation

  26. Before and After

  27. Before and After An increased filtration area also helps to slow run-off velocities

  28. Bioretention basin with 6” under drain pipe Bioretention media (equal parts sand, peat, triple-shredded hardwood mulch) Fore bay Dry detention pond Emergency Spillway into dry detention pond Components of the Bioretention Facility

  29. Bioretention Construction Excavation to subgrade

  30. Geotextile fabric Under drain pipe Approximately 6” of clean stone

  31. Geotextile placed over stone layer Bioretention soil media

  32. Place soil media using low-pressure track equipment

  33. Fore bay construction Storm water discharge into bioretention fore bay Storm water pipes leading to the fore bay

  34. Beginning plant installation Fore bay discharge pipes Mulching over soil media

  35. Fore bay to bioretention basin

  36. Near Project Completion Conversion from an open field… To a bioretention facility, improving water quality

  37. June 26, 2006 Bioretention basin Fore bay Dry detention pond

  38. The wash stalls and manure bin covers have generally met the intent of the CAFO regulation. Conclusive qualitative results for the rain gardens and bioretention facility are not yet available. Results

  39. On behalf of Delaware Park

  40. Environmental Protection Agency Dave McGuigan, Chief of Water Compliance Hank Zygmunt, Agricultural Specialist Ashley Toy, Enforcement Department of Natural Resources and Environmental Control Peder Hansen, Chief of Water Discharges Cheryl Gmuer, Inspector Delaware Department of Agriculture Bill Rohrer, Nutrient Management Administrator Special Thanks

  41. Questions?

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