Urban Water Quality Issues July 17th, 2008 Greensboro, North Carolina NACAA Annual Meeting & Professional Improvement Conf...
Development Patterns
Ultra Urban Environment <ul><li>Increasing: </li></ul><ul><ul><li>impervious areas </li></ul></ul><ul><ul><li>land value <...
Typical Urban Non-Point Source Pollutant Loading
Typical Urban Non-Point Source Pollutant Loading Algae bloom; York River, 9/9/05 Courtesy Bill Portlock, Chesapeake Bay Fo...
Why is it that this particular design does not have to follow the fundamental unit processes of water quality?
Physics of Settling – Stokes Law Henry Darcy 1803 - 1858 Media Filtration – Darcy’s Law
BMP Evaluation In the Lab; or in the Field?
Lesson 1: Clearly Defined Project Goals <ul><li>Quality Assurance Project Plan </li></ul><ul><li>Conditions and Definition...
Treatment Objectives  and Performance Goals
<ul><li>Particle Size </li></ul>Treatment Objectives  and Performance Goals
Treatment Objectives and  Performance Goals
Treatment Objectives and Performance Goals
Treatment Objectives and Performance Goals
Treatment Objectives and Performance Goals
Lesson 2: Sample Collection Grab samples Flow-paced auto samples
One Grab = One Snapshot Multiple Grabs =Multiple Snapshots
Lesson 3: Site Selection - Location Currituck Gas House Barco, NC
Lesson 3: Site Selection - Simplicity Trench Drain from  up-hill side of pumps Trench Drain on  down-hill side of   Oil-Wa...
<ul><li>1 pipe in and 1 pipe out! </li></ul>Simple is better!
Eliminate Variables and External Influences (MEP) Lesson: All fuel islands should have an Oil/Water Separator
Lesson 4: Learn the 1 st  Law of Monitoring: <ul><li>What Can Go Wrong, Will Go Wrong! </li></ul>
Once upon a time, there was this site . . . <ul><li>10/02 System Maintenance </li></ul><ul><li>10/02 Remote automated samp...
Corrective Action Taken
As Luck Would Have It (or not): <ul><li>1-2/03 Storm Capture </li></ul><ul><li>5/03 Phone Line Disabled by Lightning </li>...
But then . . . <ul><li>9/03 New Automated Sampling  Equipment Installed  </li></ul><ul><li>9/03 System Outfall Area Impact...
 
Hurricane Isabel
<ul><li>2/04 Outfall Area Restored </li></ul>Before After
The Saga Continues: <ul><li>3/04 Storm Capture </li></ul><ul><li>8-9/04 Phone lines and Automated  Sampling Equipment Disa...
Alex, Bonnie, & Earl – 8-9/04
We Are Committed! <ul><li>6/05 Resume Monitoring </li></ul>
No Matter What . . . <ul><li>9/05 Rodents </li></ul>
Corrective Action Taken AND THEN:
We Survived Hurricane Season ‘05
Happily Ever After <ul><li>8/06 Project Completed! </li></ul>
Lesson 5: Predict the Weather and Act Fast
We Got Better! 10% Early 2000’s success rate – Captures vs. Atts. 35 Qualified Storm Events -  (meet DQO of >0.1 in. and >...
Key Elements to a Successful Field Monitoring Project <ul><li>Clearly defined  </li></ul><ul><ul><li>Project Goals </li></...
Adaptive management in action From: Restoration of Puget Sound Rivers Ralph and Poole, 2003 As Conceived in Consensus Buil...
As generally implemented Adaptive management in pieces
Experimentation in the Urban Environment We’re running out of experimental opportunities!
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Urban Water Quality Issues

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  • Joe Battiata, Regional Regulatory Manager CONTECH Stormwater Solutions 8005-C Creighton Parkway # 711 Mechanicsville, VA 23111 (804) 789-1876, (804) 787-0237cell or (866) 740-3318 [email_address] http://www.CONTECHstormwater.com
  • Urban Water Quality Issues

    1. 1. Urban Water Quality Issues July 17th, 2008 Greensboro, North Carolina NACAA Annual Meeting & Professional Improvement Conference
    2. 2. Development Patterns
    3. 3. Ultra Urban Environment <ul><li>Increasing: </li></ul><ul><ul><li>impervious areas </li></ul></ul><ul><ul><li>land value </li></ul></ul><ul><li>Decreasing </li></ul><ul><ul><li>land availability </li></ul></ul><ul><li>Increasing Need for: </li></ul><ul><li>Space Efficient Best Management Practices </li></ul>
    4. 4. Typical Urban Non-Point Source Pollutant Loading
    5. 5. Typical Urban Non-Point Source Pollutant Loading Algae bloom; York River, 9/9/05 Courtesy Bill Portlock, Chesapeake Bay Foundation
    6. 6. Why is it that this particular design does not have to follow the fundamental unit processes of water quality?
    7. 7. Physics of Settling – Stokes Law Henry Darcy 1803 - 1858 Media Filtration – Darcy’s Law
    8. 8. BMP Evaluation In the Lab; or in the Field?
    9. 9. Lesson 1: Clearly Defined Project Goals <ul><li>Quality Assurance Project Plan </li></ul><ul><li>Conditions and Definitions </li></ul><ul><ul><li>Treatment Objective </li></ul></ul><ul><ul><li>Performance Goals </li></ul></ul><ul><li>Project Description </li></ul><ul><li>Quality Assurance Plan </li></ul>
    10. 10. Treatment Objectives and Performance Goals
    11. 11. <ul><li>Particle Size </li></ul>Treatment Objectives and Performance Goals
    12. 12. Treatment Objectives and Performance Goals
    13. 13. Treatment Objectives and Performance Goals
    14. 14. Treatment Objectives and Performance Goals
    15. 15. Treatment Objectives and Performance Goals
    16. 16. Lesson 2: Sample Collection Grab samples Flow-paced auto samples
    17. 17. One Grab = One Snapshot Multiple Grabs =Multiple Snapshots
    18. 18. Lesson 3: Site Selection - Location Currituck Gas House Barco, NC
    19. 19. Lesson 3: Site Selection - Simplicity Trench Drain from up-hill side of pumps Trench Drain on down-hill side of Oil-Water separator Canopy drain StormFilter Vault Bypass/Diversion manhole Outlet junction manhole
    20. 20. <ul><li>1 pipe in and 1 pipe out! </li></ul>Simple is better!
    21. 21. Eliminate Variables and External Influences (MEP) Lesson: All fuel islands should have an Oil/Water Separator
    22. 22. Lesson 4: Learn the 1 st Law of Monitoring: <ul><li>What Can Go Wrong, Will Go Wrong! </li></ul>
    23. 23. Once upon a time, there was this site . . . <ul><li>10/02 System Maintenance </li></ul><ul><li>10/02 Remote automated sampling equipment Installed </li></ul><ul><li>11/02 Remote automated sampling equipment disabled by insect infestation </li></ul>
    24. 24. Corrective Action Taken
    25. 25. As Luck Would Have It (or not): <ul><li>1-2/03 Storm Capture </li></ul><ul><li>5/03 Phone Line Disabled by Lightning </li></ul><ul><li>6/03 Automated Sampling Equipment Fried by Lightning </li></ul>
    26. 26. But then . . . <ul><li>9/03 New Automated Sampling Equipment Installed </li></ul><ul><li>9/03 System Outfall Area Impacted by Adjacent Construction Activities and Heavy Storms </li></ul>
    27. 28. Hurricane Isabel
    28. 29. <ul><li>2/04 Outfall Area Restored </li></ul>Before After
    29. 30. The Saga Continues: <ul><li>3/04 Storm Capture </li></ul><ul><li>8-9/04 Phone lines and Automated Sampling Equipment Disabled by Lightning (again); AND </li></ul>
    30. 31. Alex, Bonnie, & Earl – 8-9/04
    31. 32. We Are Committed! <ul><li>6/05 Resume Monitoring </li></ul>
    32. 33. No Matter What . . . <ul><li>9/05 Rodents </li></ul>
    33. 34. Corrective Action Taken AND THEN:
    34. 35. We Survived Hurricane Season ‘05
    35. 36. Happily Ever After <ul><li>8/06 Project Completed! </li></ul>
    36. 37. Lesson 5: Predict the Weather and Act Fast
    37. 38. We Got Better! 10% Early 2000’s success rate – Captures vs. Atts. 35 Qualified Storm Events - (meet DQO of >0.1 in. and >72 hr. antecedent conditions); hindsight 29% Successful Captures (10) vs. Opportunities (35) 43% Successful Captures (10) vs. Attempts (23) 23 Attempts to capture storm samples 68 Days with measurable precipitation
    38. 39. Key Elements to a Successful Field Monitoring Project <ul><li>Clearly defined </li></ul><ul><ul><li>Project Goals </li></ul></ul><ul><ul><li>Data Quality Objectives </li></ul></ul><ul><ul><li>Methods </li></ul></ul><ul><li>Appropriate Site Selection </li></ul>Dedicated Project Team
    39. 40. Adaptive management in action From: Restoration of Puget Sound Rivers Ralph and Poole, 2003 As Conceived in Consensus Building Process As Designed in Consensus Building Process
    40. 41. As generally implemented Adaptive management in pieces
    41. 42. Experimentation in the Urban Environment We’re running out of experimental opportunities!

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