1 / 57

METHODS

METHODS. Physical Methods. Steam Profile Discharge Air Temperature Water Temperature Relative Humidity. Chemical Methods. Dissolved Oxygen pH Conductivity Nitrate-Nitrogen Phosphate. Image Source: Colemanpalmer.com. Bacterial Methods. E. coli. USDA Tree Risk Assessment.

coyne
Download Presentation

METHODS

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. METHODS

  2. Physical Methods • Steam Profile • Discharge • Air Temperature • Water Temperature • Relative Humidity

  3. Chemical Methods • Dissolved Oxygen • pH • Conductivity • Nitrate-Nitrogen • Phosphate Image Source: Colemanpalmer.com

  4. Bacterial Methods • E. coli

  5. USDA Tree Risk Assessment • Defect Codes • Probability of Failure • Risk Rating

  6. Watershed Assessment

  7. Tree Coverage • NAIP Imagery • Digitized • QA/QC Photo Source: news.uga.edu

  8. Results

  9. Location 2A/2B counted TNTC on 5/22 and 5/29 • Location 4A also counted TNTC on 5/29

  10. Long Island Creek Phosphate

  11. Marsh Creek Phosphate

  12. Tree Canopy Coverage • Trees have higher albedo than urban landscape • Prevent ‘heat island’ effect • Evaluate rate of urban expansion

  13. Long Island Creek Coverage: 60.311% Marsh Creek Coverage: 48.97% Average Coverage: 55.28%

  14. Long Island CreekConclusion E. Coli Levels coliform have increased since 2012. Most locations had consistent coliform levels that exceeded state standard of 1000 (cfu/100ml)

  15. Long Island CreekConclusion Dissolved Oxygen • Dissolved Oxygen levels were consistently above the state minimum of 4 mg/L • Overall dissolved oxygen levels were up from Previous years except for site 1b • There water temperature is not the only factor that influences dissolved oxygen

  16. Long Island CreekConclusion pH • pH was consistently within the state standard range of 6.8 – 8.5 • In 2014 Long Island Creek continued the trend from 2013 of becoming less acidic • Headwaters were more acidic

  17. Long Island CreekConclusion Nitrates • Nitrates levels were below the state standards of 10mg/L • Nitrates are reasonably lower than the 2013 results • Drastic decrease in nitrate levels at site 2B

  18. Long Island CreekConclusion Phosphates • Phosphates levels were all below the state standard • Phosphate levels were too low to be cause for concern over the past three years.

  19. Marsh Creek Conclusion E. coli • E. coli levels were high enough to require serious concern • Overall coliform levels are less than 2013 but still much higher than 2012 and also exceed the state standard of 1000 cfu/100ml

  20. Marsh Creek Conclusion Dissolved Oxygen • Dissolved Oxygen levels were consistently above the state minimum of 4 mg/L • Overall Dissolved oxygen has increased with the exception of site 4a • Factors other than temperature are affected dissolved oxygen levels

  21. Marsh CreekConclusion pH • pH was consistently within the state standard range of 6.8 – 8.5 • Marsh Creek continued to become less acidic 2014.

  22. Marsh CreekConclusion Nitrate-Nitrogen • Nitrates levels were below the state standards of 10mg/L • Most of the test results showed a positive change from 2013 • High test results were shown for site 6a and 6b as well as site 1a on one test date

  23. Marsh Creek Conclusion Phosphates • 3 separate sites were above the thestate standard of 0.1mg/L • Phosphate have levels have been to low to be cause for concern between 2012 and 2014

  24. Stream Bank Restoration • Avondale Estates, Decatur • 1st order tributary of Cobbs Creek • Under the supervision of Jack White, and Harold Harbert of GA Dept. of Natural Resources

  25. Issues & Concerns • Water channel created due to storm water run-off pipe located at the headwaters of the tributary. • Extreme undercutting, leaving what was once relatively healthy trees with exposed roots.

  26. Goals & Methods • Goal: to slow the movement of water within the channel while diverting the direction of flow • Logs were placed in a zig-zag formation within the water channel. • Coconut netting staked in place near eroded hillsides to slow down water flowing into the scour pit

  27. Stream Restoration

  28. Stream Restoration: Results Results

  29. Questions

  30. APPENDIX • Trends for the years 2012-2014 to follow

More Related