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TMDL & Stormwater Accounting
 

TMDL & Stormwater Accounting

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    TMDL & Stormwater Accounting TMDL & Stormwater Accounting Presentation Transcript

    • Jeremy Sokulsky, PE, MBA
      President
      530-541-2980
      jsokulsky@enviroincentives.com
      tmdl&stormwater accounting
    • LAKE CLARITY CREDITING PROGRAM
      motivating effective action to improve lake clarity
    • Have you seen projects like these?
    • Limited connectivity to the waterbody results in small load reductions for the cost.
      +$1.8m
      + 150kg
    • Infiltration basin above the grade, so does not actually receive water.
      +$0.8m
      + 0kg
    • Reporting requirements do not result in follow-up maintenance.
      +$0.75m
      + 0kg
    • GAO & others lack understanding of results…
      …so program effectiveness is questioned and funding attacked.
    • Compliance is based on a checklist of actions.
      Public opinion is based on dollars spent.
    • Compliance is based on a checklist of actions.
      Public opinion is based on dollars spent.
      TMDL & stormwater accounting unifies focus on water quality outcomes.
    • How can we make our TMDLs more effective?
    • TMDLs effectively…
      define baselines, goals & milestones.
      15 Year Goal
      10 Year Goal
      5 Year Goal
    • TMDLs Identify Source Categories with LAs & WLAs
      Agricultural
      Atmospheric
      Stormwater - Municipalities
      Stormwater - DOT
      Point Sources
    • Accounting takes TMDLs one step further…
      defines site-scale incremental load reductions – credits
      links on-the-ground actions to system-wide goals.
    • Use load reductions as reporting criteria in NPS grant programs.
      TMDL Targets
      NPS Program Goals
      10 Year Goal
      5 Year Goal
      2 Year Goal
    • Use load reductions as effluent limits in MS4 permits.
      TMDL Targets
      NPDES Permit Goals
      10 Year Goal
      5 Year Goal
      2 Year Goal
    • TMDL & Stormwater accounting enables prioritization of…
      what to do & where to do it.
    • what to do.
      green
      gray
      o&m
    • whereto do it.
      Prioritized urban catchments based on expected load reduction potential.
    • TMDL & Stormwater accounting enables coordination between permitted entities.
      City of South Lake Tahoe
      CA DOT
    • Performance-Based Adaptive Management System
    • Use Models to Leverage Monitoring
      Model Expected Loading
      Adopt Improved Models
      use models to prioritize where & what to implement
      establish load reduction hypothesis
      peer review & comment
      Monitor
      • Targeted
      • Intensive
      Improve Models
      compare modeled to observed results
    • Is TMDL & stormwater accounting…
      worth the additional cost?
    • Performance and Cost Effectiveness Increase from TMDL & Stormwater Accounting.
      TMDL & Stormwater accounting
      Poorly performing projects
    • Performance and Cost Effectiveness Increase from TMDL & Stormwater Accounting.
      TMDL & Stormwater accounting
      Poorly performing projects
    • Jeremy Sokulsky, PE, MBA
      President
      530-541-2980
      jsokulsky@enviroincentives.com
      tmdl&stormwater accounting