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Water Quality Assessment of Osage Creek & West Fork, White and Kings Rivers 2008 & ½ 2009

Explore the findings of water quality assessments conducted in four NWA watersheds in 2008 and the first half of 2009, focusing on phosphorus trends and watershed comparisons for Northwest Arkansas water bodies.

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Water Quality Assessment of Osage Creek & West Fork, White and Kings Rivers 2008 & ½ 2009

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  1. Water Quality Assessmentof Osage Creek & West Fork, White and Kings Rivers2008 & ½ 2009Marc Nelson PhD, PENelson Engineering

  2. Funding provided by: Arkansas Natural Resources Commission, EPA 319 Grant Program To : Northwest Arkansas Conservation Authority - Osage City Of Fayetteville - West Fork Beaver Water District - White Kings River Watershed Partnership - Kings

  3. Summarize Water Quality Assessment • Four watersheds NWA • 2008 and first half of 2009 results • Phosphorus • Trends • Watershed comparisons

  4. Northwest Arkansas Water Quality Monitoring Sites Osage Creek Kings River White River @ 45 Bridge West Fork of White River

  5. Water Quality Sampling • Grab samples every two weeks • Auto-sampler samples all storm events > trigger level • Flow-weighted composite samples (except White) • SO4, Cl-, NH4, NO3/NO2, T-N, T-P, sPO4, and TSS • Concentrations assigned to all times • USGS discharge for all times • Loads calculated by multiplying and summing for the year • Sondes reading turbidity, conductivity and temp (except Kings River)

  6. Kings River near Berryville 2008 Loads and Mean Concentrations

  7. Kings River near Berryville 2008 Loads and Mean Concentrations

  8. Kings River near Berryville2008 Storm and Base-flow Loads and Mean Concentrations

  9. Kings River near Berryville First Half of 2009 Storm and Base-flow Loads and Mean Concentrations

  10. Kings River P trends

  11. Kings River P trends

  12. White River near Goshen2008 Storm and Base-flow Loads and Mean Concentrations

  13. White River near Goshen

  14. Osage Creek near Elm Springs 2008 Storm and Base-flow Loads and Mean Concentrations

  15. Osage Creek near Elm Springs

  16. West Fork near Baldwin 2008 Storm and Base-flow Loads and Mean Concentrations

  17. West Fork near Elm Springs

  18. Watershed comparison

  19. Watershed comparison

  20. Watershed comparison

  21. Questions?

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