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Low Impact Development 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 presentations on LID 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.

For more information about the workshop and results of the discussions of next steps and barriers, view the presentations, resource links and report below..

Thursday April 9
Educational Sessions and Determining Next Steps

Presentations, 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

Opening Remarks - video

Regional Efforts Achieve 2011 Workshop Goals - video

Successful Regional Efforts Parallel 2011 Workshop Goals

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


  • 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
    • 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
  • Claire Zucker and Mead Mier, Pima Association of Governments


  • 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.

Who Should Attend
Public and private professionals who work with LID including: Engineers, Designers, Planners, Educators, MS4s, Construction Professionals, Landscape Architects,  Arborists, Developers, Water Resource Managers, Regulators, Parks Departments, Facilities Managers, Transportation Professionals, Academic researchers, and Green Industry Professionals.

Learn how LID is required or incentivized in various local, state and federal regulations including flood control, stormwater quality, zoning and water reliability while creating multiple additional community services such as heat reduction and energy savings. Earn Continuing Education Credits for Certified Floodplain Managers (ASFPMs were available): 7 CECs for day one and 3 CECs for day two.

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.


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. PAG's LID resources relating to the construction industry are located here and information for the general public can be found here. For more information on conference results and proceedings, research and future conferences, click here.

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