Rob Breeding Bolin Creek: Healing Our Local Waterways

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Friends of Bolin Creek Water Symposium Feb. 2012

Adjunct to CH2020 process.

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Rob Breeding Bolin Creek: Healing Our Local Waterways

  1. 1. Our Local Streams,Bolin & Morgan CreeksCan We Heal Our Local Waterways? Rob Breeding, Eastern Watershed Planner February 11, 2012
  2. 2. Little Creek WARP &Morgan Creek LWP Studies Can We Heal Our Local Waterways? Rob Breeding, Eastern Watershed Planner February 11, 2012
  3. 3. Little Creek WARP &Morgan Creek LWP Studies
  4. 4. Stream Assessment for WARP GOALS• Determine the best methods for assessing the health of NC streams and aquatic habitat conditions• Identify water quality and habitat stressors in Bolin & Booker Creek watersheds• Identify sources
  5. 5. Stream Assessment for WARP GOALS• Determine the best methods for assessing the health of NC streams and aquatic habitat conditions• Identify water quality and habitat stressors in Bolin & Booker Creek watersheds• Identify sources
  6. 6. Stream Assessment for WARP GOALS• Determine the best methods for assessing the health of NC streams and aquatic habitat conditions• Identify water quality and habitat stressors in Bolin & Booker Creek watersheds• Identify sources
  7. 7. Stream Assessment for WARP GOALS• Determine the best methods for assessing the health of NC streams and aquatic habitat conditions• Identify water quality and habitat stressors in Bolin & Booker Creek watersheds• Identify sources
  8. 8. Water Quality Assessment METHODS • Biological Sampling – Insects – Fish – Algae • Water Quality Sampling – General Parameters – Nutrients – Toxicity
  9. 9. Water Quality Assessment METHODS • Biological Sampling – Insects – Fish – Algae • Water Quality Sampling – General Parameters – Nutrients – Toxicity
  10. 10. Water Quality Assessment METHODS • Biological Sampling – Insects – Fish – Algae • Water Quality Sampling – General Parameters – Nutrients – Toxicity
  11. 11. Water Quality Assessment METHODS • Biological Sampling – Insects – Fish – Algae • Water Quality Sampling – General Parameters – Nutrients – Toxicity
  12. 12. Water Quality Assessment METHODS • Biological Sampling – Insects – Fish – Algae • Water Quality Sampling – General Parameters – Nutrients – Toxicity
  13. 13. Water Quality Assessment METHODS • Biological Sampling – Insects – Fish – Algae • Water Quality Sampling – General Parameters – Nutrients – Toxicity
  14. 14. Insect SamplingINDICATOR GROUPS• Mayflies• Stoneflies• Caddisflies• Midges
  15. 15. Insect Sampling• Diagnostic for all instream ecosystem functions for a reach or tributary• Detailed interpretation can suggest likely stressors• Potential for long-term water quality trend assessment
  16. 16. What We Found…
  17. 17. What Else We Found…
  18. 18. Fish SamplingINDICATOR GROUPS Johnny Darter•Tolerant, intermediateand intolerant species•Insectivores, piscivoresand omnivores
  19. 19. Fish SamplingINDICATOR GROUPS•Tolerant, intermediateand intolerant species Redfin Pickerel•Insectivores, piscivoresand omnivores White Shiner
  20. 20. Fish Sampling• Diagnostic for all instream ecosystem functions for a reach or tributary• Detailed interpretation can suggest stressors and can indicate post-project improvement• Potential for trend assessment
  21. 21. What We Found…•Piscivores present•Omnivores present in moderate numbers•Insectivores predominant at all sampling sites
  22. 22. Water Quality Sampling METHODS• Collect field samples• Analyze in laboratory• Compare concentrations to benchmarks and references
  23. 23. Water Quality Sampling METHODS• Storm water & baseflow• Wide array of chemicals and classes
  24. 24. Water Quality Sampling• Directly measures inputs from surrounding land use• Detailed interpretation can help explain biological condition• Used to support model development• Potential for long-term trend analysis
  25. 25. What We Found…• Dissolved Oxygen—slightly worse in lower Bolin but not a smoking gun• Nutrients—Nitrogen and Phosphorus OK• Some Metals—Copper of concern in few storm samples; iron, manganese, & aluminum high but likely background ―noise‖• Some Pesticides—Atrazine & DDT at low levels
  26. 26. Toxicity Testing• Multitaxa toxicity screening of water diagnoses problems difficult to address with traditional restoration projects• Sediment testing can show long-term or historic issues• Tox testing helps explain poor bio community condition• Done in conjunction with other water quality sampling
  27. 27. The Morgan Creek LWP GOALS• Characterize the health of the streams and aquatic habitat conditions• Identify water quality and habitat stressors in subwatersheds• Inform the management recommendation process
  28. 28. Riparian Assessments•Field Assessment •Land use •Water Quality •Riparian Buffer •Stream Stability •Aquatic Habitat •Typical Stream Measurements •Other site characteristics
  29. 29. Riparian Assessment Results • Assessments and Project Yield • 40+ reaches assessed • 21 potential restoration and/or enhancement projects in Bolin • 5 potential restoration reaches in Little Creek • Observations • Bank erosion • Lack of woody buffer • Channel modification • Sedimentation • Degraded aquatic habitat • Utility crossings
  30. 30. More Recent Information…• Carrboro sponsors Benthic Macroinvertebrate sampling annually—data suggests possible declines in developing areas• EarthTech Stormwater Retrofit Study• Division of Water Quality Basinwide Assessment & Basin Plan
  31. 31. What the Future Holds… • ????? • Continued Aquatic Insect Community Sampling • Continued DWQ Basinwide Assessment and Planning • DWQ Restoration Watershed Support
  32. 32. Find Out More…http://portal.ncdenr.org/web/wq/swp/ws/p http://www.nceep.net/services/lwps/Morgandu/wat/warp _Creek/Morgan.pdf
  33. 33. Our Local Streams,Bolin & Morgan Creeks Questions?

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