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Workshops and Conferences

  1. Low Impact Development (LID) Workshop
  2. Arid LID Conference
  3. Arizona Statewide MS4 Summit
  4. Stormwater Construction Seminar
  5. Construction Industry Resources

Low Impact Development (LID) Workshop: April 9-10, 2015

Low impact development guidelines, incentives, standards, policies and research were addressed during the 2015 Low Impact Development (LID) Workshop in Tucson on April 9 and 10.  Organized by the Pima County Regional Flood Control District’s collaborative LID Working Group, Pima Association of Governments was among the workshop sponsors and planning partners.  Over 120 people attended the two-day workshop, including transportation planners, flood control engineers, landscape designers, stormwater quality regulators, urban forestry experts, academics and water resource managers.

In addition to LID presentations on history and successes since 2011, the workshop included an interactive poster session, a guided tour highlighting stormwater harvesting features along Scott Avenue and group discussions on the future of LID in the Tucson region. The field experience covered best practices in LID, methods of measuring the economic benefits of LID and strategies for minimizing maintenance issues, among other insights for both public and private sector professionals.

Thursday April 9
Educational Sessions and Determining Next Steps

Presentation, Awards, and Discussion
Topics:  Case Studies, New Technical Guidance Manual, Regulations and Policy, Cost Effectiveness, Lessons Learned, Community Benefits, Top Research, Education and Management Needs

Download the Complete Set of Presentations (42MB pdf) or view individual presentations below. 

Background and Welcome

  • Introduction, Evan Canfield Video (2:21)
  • Welcome, Larry Lucero, Senior Director Government and External Affairs Tucson Electric Power
  • Welcome, Sustainability in Pima County and the Region, Chuck Huckelberry, Pima County Administrator Video (12:38)
  • March 2011 LID Workshop and Goals, Ann Moynihan, Pima County Regional Flood Control District Presentation (1MB pdf)
  • LID Working Group and Objectives, Evan Canfield, Pima County Regional Flood Control District Presentation (1MB pdf) Video (10:56)

Regional Efforts Achieve 2011 Workshop Goals

  • Low Impact Development and Green Infrastructure Guidance Manual, Lynn Orchard, Pima County Regional Flood Control District Presentation (pdf) Video (34:15)
  • Inventory of Regional Policies and Efforts, Mead Mier, Pima Association of Governments Presentation (pdf) Video (30:42)
  • Flood Mitigation Effectiveness of Neighborhood Scale Practices, Catlow Shipek, Watershed Management Group; and Janice Hughes, Pima County Regional Flood Control District Presentation (pdf) Video (20:15)
  • AutoCASE Valuation Tool for Infrastructure, John Wise, Stantec Presentation (pdf) Video (21:58)
  • Business Case Evaluator for Stormwater Management, Kieran Sikdar, Watershed Management Group Presentation (pdf) Video (23:10)
  • Case Studies Catalog, Sandy Bolduc, Pima County Regional Flood Control District Presentation (pdf) Video (12:20)
  • Case Studies Awards Video (7:21)
  • Tour of Scott Avenue, Laura Mielcarek, Wheat Design Group 

Successful Regional Efforts Parallel 2011 Workshop Goals

  • Moderator: Fernando Molina, City of Tucson, Tucson Water
  • Sustainability Features in the Tucson Electric Power Building,  Kay Brown, Ryan Companies US, Inc. Presentation (pdf) 
  • Stormwater Quality & LID for Ephemeral Watersheds, Marie Light, Pima County Department of Environmental Quality Presentation (pdf)
  • City of Tucson, Irene Ogata, City of Tucson Office of Integrated Planning Presentation (pdf)
  • Town of Oro Valley, Rob Wilson, Town of Oro Valley Stormwater Division Presentation (pdf)
  • Academic Research Efforts, Mitch Pavao-Zuckerman, University of Arizona Presentation (pdf)

Where Do We Go From Here and How?

  • Moderator: Marie Light, Pima County Department of Environmental Quality
  • Closing , Ann Moynihan, Pima County Regional Flood Control District

Wednesday April 10
Interactive Field Experience

Topics: Led by LID leaders and design professionals participants learned best practices that address implementation and maintenance challenges and refined abilities to identify LID opportunities. Onsite demonstrations aimed to improve abilities to visually understand design and implementation issues.

James DeRoussel, Catlow Shipek and Kieran Sikdar, Watershed Management Group Slides (pdf)


  • Standards for Stormwater Detention and Retention in Pima County
  • Ann Moynihan, Pima County Regional Flood Control District
    • Low Impact Development Case Study Examples
  • Sandra Bolduc, Pima County Regional Flood Control District
  • Claire Zucker and Mead Mier, Pima Association of Governments
    • LID Education and Outreach by PAG’s Stormwater Management Working Group
    • PAG Regional Council LID/GI Resolutions
    • LID for Arid Shallow Groundwater Resiliency
    • Results of the LID Workshop 2015 Registration Survey – Research Needs and Future Vision


  • To increase awareness by acknowledging success in achieving goals targeted by the 2011 workshop and to recognize the abundance of other regional sustainability efforts.
  • To incorporate your perspectives on low impact development to evaluate and guide the next steps in the region.
  • To provide an opportunity for hands-on site review and workshop covering design principles and best practices.

Organizing Committee Representation


This workshop was hosted by the LID Working Group based in the Tucson region. The workshop organizing committee is composed of voluntary partners.
Pima County Regional Flood Control District, Pima Association of Governments (PAG), City of Tucson Office of Conservation,  UA’s Water Resources Research Center, Pima County Department of Environmental Quality and Department of Transportation, Watershed Management Group, Stantec, Wheat Design, Town of Marana, and additional partners.


Tax Deductible Donations Collected by:

Thanks to our Sponsors

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Arid LID Conference

Green Infrastructure and Low Impact Development in Arid Environments

Arid LID is an annual Southwest regional conference for professionals, advocates, educators and academics. Sessions include Green Infrastructure (GI), research, best practices, policy and regulation, and community based approaches including hands-on activities. The emphasis is finding multiple benefits and integrated approaches among various disciplines and sectors in our arid region.

LID/GI reduces water pollution by capturing and purifying rain runoff using green roofs, permeable materials, alternative street and building design, trees and rain gardens. The EPA has found that implementing well-chosen LID practices saves money for developers, property owners, and communities, while protecting and restoring water quality. Beyond cost savings, amenities include enhanced property values, improved habitat, natural aesthetics, and improved quality of life. For these reasons, EPA is incorporating LID provisions in state issued stormwater permits (NPDES permits), which are required in large towns in cities. PAG was among the planning and sponsoring agencies that brought this conference to the Tucson region in 2012.

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Arizona Statewide MS4 Summit

The Municipal Separate Storm Sewer System Statewide Summit is run by permittees for permittees. This summit creates a space for information sharing and networking for MS4s AZPDES MS4 Coordinators, Public Works Managers, Water Quality Managers, Environmental and Construction Managers and Inspectors, and Consultants involved with SWMP implementation or development.

Pima Association of Governments is one of the founding members of the planning committee for the 2013 MS4 Summit.

Resources from past MS4 Summits:

2014 MS4 Summit
Date: June 4, 2014
Location: ADOT Human Resources office in Phoenix
Host: Robert van den Akker

Group Updates

Public Outreach – efforts, outcome, and evaluation

Post Construction Best Management Practices

WIFA - Funding source, Susan Craig
BMP implementation – Facilities

ADEQ Perspective

2013 MS4 Summit

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Stormwater Construction Seminar

PAG's Stormwater Regulations Guidance for the Construction Industry

Managing stormwater flow on construction sites is required by state law to prevent erosion and transport of soils and contaminants. Controlling stormwater discharge is important to prevent harm to washes and fragile desert ecosystems in Arizona.

Stormwater management information and guidance is provided to the construction industry through Pima Association of Governments’ semi-annual Stormwater Construction Seminars as well as upcoming efforts with our partner jurisdictions to provide tail-gate trainings and demonstrations on site.

Professionals in private and public sectors, including planners, designers, engineers, outreach personnel, regulators and inspectors are welcome to attend the seminar. Seminar participants receive Flood Plain Manager Continuing Education credits. The seminar provides an opportunity for business to interface with all the local and state regulatory agencies to understand their individual permitting requirements. Post construction stabilization methods, including rainwater harvesting practices, are shared as well.  Resources provided by past seminars, including presentations, are available here.

Between seminars, you may contact one of your local MS4 contacts to request on site training. Contact information is available here.  Operators can learn what is required under the Arizona Pollutant Discharge Elimination program and see examples of best management practices (BMPs) to include in Stormwater Pollution Prevention Plans.

Highlights of the 2013 Seminar

Chris Henninger, Supervisor of the Stormwater and General Permits Unit at Arizona Department of Environmental Quality (ADEQ), presented the updated Arizona Pollutant Discharge Elimination System (AZPDES) 2013 Construction General Permit (CGP).  A panel of stormwater managers from the local jurisdictions within Pima County were available to answer questions.

Topics at the 2013 Seminar included:

  • Stormwater discharges generated during construction activities (which can cause an array of physical, chemical and biological water quality impacts)
  • How the CGP authorized stormwater discharges from construction-related activities (where those discharges have a potential to enter surface waters of the United States or a storm drain system)
  • Construction operators were able to apply for stormwater permit coverage under the 2008 CGP, until the 2013 CGP was implemented
  • Updates:


For more info contact Mead Mier at or 495-1464

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Construction Industry Resources

Arizona Pollution Elimination Discharge System (AZPDES) Links

Best Management Practices (BMPs) and Design

EPA National Pollution Elimination Discharge System (NPDES) Links

Green Infrastructure/Low Impact Development

  • EPA Green Infrastructure Page
  • Watershed Management Group Manual - Green Infrastructure for Southwestern Neighborhoods
  • LID Center - Green Streets - Standard Specifications, Details and Policies
  • LID Working Group (Pima County Regional Flood Control District): Manual review, LID/GI resources, Stormwater resources, Water Harvesting Spreadsheets, Cost Effectiveness of LID, Case Studies, Plant Guidance, Schematics
  • The ADOT Post Construction BMP Manual
    Section 3.1.3 states that roadway designers should incorporate LID techniques and BMPs whenever possible. Table 2.1 – ADOT Recommended List of LID Applications and locations where rainwater harvesting is recommended within Post-Construction BMPs. The following post ADOT Manual pages include specified ratings, appropriate applications, materials, design standards, design considerations, maintenance and schematics.
    • Off-road, Overland Flow Erosion Control
      • Impervious Cover
    • Roadway Drainage Conveyance
      • Impervious Channel Lining ( PAGE 3-12, 3-52)
      • Pervious Channel Lining ( PAGE 3-12, 3-52)
      • Rainwater Harvesting (PAGE 3-56)
    • Water Quality and Treatment
      • Bioretention (PAGE 3-73)
      • Filtration Structures
      • Infiltration Basin (PAGE 3-56)
      • Infiltration Trench (PAGE 3-56)
      • Retention and Detention Basins (pond-in-place practices)
      • Vegetated Filter Strips

Jurisdiction Stormwater Programs

Local Stormwater Ordinances

Monitoring Stormwater

NOI References

  • “Smart NOI” system
  • NOI must be submitted to ADEQ in Phoenix by FAX to (602) 771-4674, By Certified Mail with Return Receipt, Hand delivered, or Via SMART NOI system Questions- Shirley Conrad (602) 771-4632

“R” Factor

Rain Gages

Rainwater Harvesting (RWH) and Xeriscape

Reporting Violations

Stormwater Regulations

SWPPP Preparation

Training for the Construction Industry

U.S. Army Corps of Engineers

PAG Construction Industry Stormwater Seminars




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