Overview of the Green Infrastructure Section of PWSA's Feasibility Study.pptx by hcj



Overview of the Green
Infrastructure Section of
PWSA’s Feasibility Study
Presenter: Ross Gordon, PE, CFM, LEED AP

                           Presentation Charrette No. 3: April 19, 2013
    Recap – WW Feasibility Study

PWSA and City of Pittsburgh Consent
 Order and Agreement (COA)
    Entered January 29, 2004
       Department of Environmental Protection (DEP)
       Allegheny County Health Department (ACHD)
    Requirement per COA Section 15.
     Paragraph d.
       Submit Feasibility Study (FS) within 6 months after
        ALCOSAN submits a Wet Weather Plan (WWP)
        Recap – Timeline

    2002           2007          2008        2009                              2012               January 2013
 PWSA Long      ALCOSAN         PWSA    PWSA modeling                      PWSA Draft               ALCOSAN
Term Control signs CD and Preliminary      and cost                        FS submitted            Submits Draft
 Plan (LTCP)      begins       Draft FS   estimating                       to ALCOSAN                WWP to
started under    regional     completed methods aligned         2010                                Regulators
   NPDES         planning                with regional       PWSA FS
requirements                               methods       recommendations
            2004           2008                            updated and                July 2012              July 2013
         PWSA/City      PWSA LTCP                         preliminary flow            ALCOSAN               PWSA/City
          Sign COA      converted to                    estimates provided            releases its            to submit
                        a Feasibility                    to ALCOSAN per              Draft WWP               Final FS to
                         Study (FS)                             COA                                          regulators
                                                                                                              per COA

                                                                                  Complete remaining
                                            Refine the FS to achieve
                                                                                  planning tasks and
      Initial Draft FS completed            consistency with regional
                                                                                  integrate prior planning
                                            planning efforts
                                                                                  activities into a final FS
    Schedule - Feasibility Study Update

                Feasibility Study Update Completion Schedule
    February          2013
                  March      April 2013    May 2013   June   2013   July   2013

    INITIATE                                           DRAFT        FINAL

          #1                    #2                     #3
          Charrette            Charrette              Charrette
    PWSA Feasibility Study

    Establish baseline ‘gray infrastructure’ approach to
     meeting compliance requirements
      Includes Projects / Timeline / Costs / Affordability
      Culmination of 10-year planning process
    Introduce ‘green infrastructure (GI)’ alternative and
     Integrated Watershed Planning (IWP) framework
    Lay out process to ‘green PWSA’s wet weather
    Green Infrastructure Section

    Establish intentions for
     incorporating GI into the
     feasibility study
    Lay out initial actions to assess
     feasibility of greening the
     baseline gray infrastructure
    Lay out initial actions to
     implementation of GI
    Green Infrastructure Section

    Lay out initial actions to
     demonstrate and monitor
     performance of GI approaches
    Establish decision points to update
     the feasibility study and modify
     the COA to include GI and
     adaptive management
    Feasibility Study Challenges

    PWSA is required to provide a path to
     compliance (baseline approach)
    PWSA is required to meet the schedule in the
    Regulators looking for certainty – evidence of
     proposed compliance approach’s ability to
     meet requirements of COA
    Green Infrastructure Challenges

    GI path to compliance has not been
     determined yet
    Ability to implement GI approach at the scale
     required has not been demonstrated
    Ability for GI approach to meet water quality
     standards has not been demonstrated
     Summary of Challenges

     Feasibility Study is a balance of multiple
     Regulators require clear plan to meet CSO
      reduction obligations
     Aim to provide a structure which allows for
      adaptation and optimization of the plan
             Preliminary Green Infra.
                  Section Outline

     1)   Introduction to Green Infrastructure
     2)   Public Participation
     3)   Overview of Challenges and Obstacles
     4)   Adaptive Management Approach
     5)   Short Term Action / Implementation Plan
     6)   Decision Points
     7)   Long Term Action / Implementation Plan
     1) Intro. to Green Infrastructure

     Introduction to green infrastructure (GI)
     Review of GI for CSO control
     Review of Triple Bottom Line benefits of GI
     Quantification of existing GI efforts
     Discussion of ‘Integrated Watershed Planning’
     Establishment of goals and objectives for GI
     2) Public Participation

     Introduction to GI charrette process
     Charrette # 1 findings
     Charrette # 2 findings
     Charrette # 3 findings
     “Green Infrastructure in Pittsburgh will be a
      success if...”
     3) Challenges and Obstacles

     Provides impetus for implementation activities
     Based on feedback provided in Charrettes
       Authority to implement
       Education and outreach
       Regulatory / zoning
     4) Adaptive Management Approach

     Provide overview of proposed adaptive
      management framework
     Discuss benefits of continual optimization of
      compliance activities
     Review gray / green interface and how it can
      be optimized
     Discuss process of staying on schedule while
      exploring GI opportunities
     5) Short Term Action/Implementation Plan

     Accelerate/facilitate implementation of GI
     Demonstrate and monitor performance of GI
     Inform decision making process
           Develop inter-agency GI task force
           Continue public education and outreach
           Streamline bureaucracy / permitting
           Establish regional partnerships
           Plan/construct/assess early implementation projects
           Conduct system-wide GI alternatives assessment
           Address major zoning / regulatory impediments
           Develop GI design and maintenance manuals
           Develop GI monitoring and tracking plan
           Finalize assessment of stormwater utility
           Develop ‘Implementation and Adaptive Management Plan’
     6) Decision Points

     Establish schedule of decision points
     Establish criteria to be met at each decision
      point and consequences of not meeting criteria
     Establish process for modifying Consent Order
      and Agreement
     7) Long Term Action/Implementation Plan

     Provide vision for long-term GI / hybrid
      approach to CSO control
     Provide vision for ‘Integrated Watershed
      Planning’ approach
     Establish framework of long-term adaptive
      management process
     Establish long-term process for assessing
      progress towards compliance
     GI Section Summary

     Roadmap to incorporate GI into the feasibility
     Set of short term obligations to
      accelerate/facilitate implementation of GI
     Establishment of decision points and process to
      amend Consent Order and Agreement to
      incorporate GI

Overview of Adaptive
Management Approach to
Green Infrastructure
Presenter: Ross Gordon, PE, CFM, LEED AP

                          Presentation Charrette No. 3: April 19, 2013
     Key Considerations

     Adaptive approach bases future actions on the
      success of previous actions, allowing for continual
     Focuses on monitoring and regular re-assessment in
      order to achieve goals in the most cost-effective and
      beneficial manner
     Supports and aligns with USEPA ‘Integrated
      Watershed Planning’ framework
     Preliminary Approach - Adaptive
     Management for PWSA

     Desire to optimize the proposed solution
       Gray vs. green mix
       Types/applications of green infrastructure (GI)
     Short term goal: secure approval to modify the
      compliance approach to use GI solutions in conjunction
      with gray solutions
     Long term goal: establish a process which provides
      flexibility to meet water quality goals through the
      most cost-effective and beneficial means.
     Short Term Decision Points

     #1 - Regional/regulatory support to move
      forward with GI initiatives
     #2 - Technical justification from feasibility,
      performance, and cost standpoints
     #3 - Performance warrants incorporation of
      GI into plan
     Issue update to regulators for modification of
      Consent Order and Agreement
      Draft - Short Term Process
         YEAR 1                         YEAR 2-4                          YEAR 4-5
• Submit Feasibility Study       • Implement early                • Monitoring and assessment
• Coordinate w/ regulators         demonstration projects         • Initiate further changes to
• Develop inter-agency GI        • Conduct system-wide GI           promote and facilitate GI
  task force                       alternatives assessment        • Development of Adaptive
• Continued public outreach      • Initiate further changes to      Management Plan
• Coordinate w/ regional           promote and facilitate GI
  partners                       • Develop GI design and
                                                                        Decision Point #3:
• Plan early demonst. projects     maintenance manuals
                                                                      Performance warrants
• Initiate changes to promote    • Develop monitoring and
                                                                     incorporation of ‘green’
  and facilitate GI                tracking plan

                                                                  • Submit revised plan to
     Decision Point #1:               Decision Point #2:
    Regional/regulatory            Technical justification from
  support to move forward           feasibility, performance,        Preferred Outcome:
      with GI initiatives             and cost standpoint          Modify Consent Order and
                                                                     Agreement to include
 Revert to Gray Infrastructure    Revert to Gray Infrastructure       green infrastructure
     Long Term Considerations

     Desire flexibility to choose between green and
      gray solutions based on measured past
     Desire flexibility to achieve stormwater
      improvements through various means
       i.e. - private vs. public improvements
     Desire flexibility to focus on integrated
      watershed planning instead of a narrow focus
      on CSOs

     PWSA to initiate progress on time-sensitive
      gray solutions while evaluating feasibility of
      green approaches
     Establish initial actions and series of decision
      points for moving forward with the ‘greening
      of the wet weather plan’
     Establish a more flexible framework which will
      allow for adaptation and optimization of the
      plan as it is implemented

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