Stormwater Sessions Live – Dissolved Contaminants & Their Importance to Stormwater Quality

Event details

  • Tuesday | September 10, 2019
  • 12:00 pm - 1:00 pm
  • Webinars - Watch Anywhere Live & On-Demand
  • Contact Ben Curtis for Questions (319) 855-2955
  • Ben CurtisStaff members

The Iowa Stormwater Education Partnership is proud to annouce our 2019 webinar series! We’ve compiled a panel of experts from across disciplines to share their knowledge on stormwater practices and research during convenient lunch-hour sessions.

Download the Event Flyer

Webinars are eligible for 6 total hours of continuing education or professional development hours, 1 hour per webinar. Sessions are recorded live and available on demand if sessions are missed. All webinars take place from 12 – 1PM central time. For questions, please contact Ben Curtis at


May 7: Stormwater Street Trees Deep Dive

Shirley Vaughn, Regional Business Developer, Davey Resource Group

Presentation Description: TBA

Shirley Vaughn, M.S., is a business developer for DRG. Ms. Vaughn works with federal, local, and state governments, and state DOTs. Ms. Vaughn specializes in developing large-scale tree inventory projects, urban forest planning, and UTC assessments. Prior to joining DRG, Ms. Vaughn worked for the State of Florida Division of Forestry as an urban forestry grant administrator. Fas a natural resource specialist and park manager for Broward County, Florida. Ms. Vaughn is an International Society of Arboriculture (ISA) Certified Arborist and Municipal Specialist (FL-5512AM). She is certified in Natural Lands Management through the University of Florida Institute of Food and Agricultural Sciences (IFAS) and The Nature Conservancy. Ms. Vaughn has a master’s degree and a bachelor’s degree in geology from the University of Iowa.

Michael A. Harris, M.A., Ph.D.(abd), is an Urban Forestry Planner for Davey Resource Group. He is responsible for urban forestry plan development and has written professionally and consulted for over 15 years as a commercial real estate development appraiser and broker, conducting feasibility studies for banking risk assessment. With a B.S. in conservation from Kent State University, his career began in wetland delineation, mitigation, and environmental lab chemistry. After becoming a commercial appraiser, he completed an M.A. in urban planning/geography from the University of Akron. He is a Ph.D. (abd) candidate in urban geography & architecture cognate at Kent State University concerning GIS-based spatiotemporal analysis of distance decay factors affecting land value.


June 11: Constructed Stormwater Wetland Design

Tom Schueler, Executive Director, Chesapeake Stormwater Network
Dave Hirschman, Principal, Hirschman Water & Environment, LLC
Albert McCullough, P.E., Sustainable Science, LLC

Presentation Description: TBA

Tom Schueler has more than 30 years experience in practical aspects of stormwater practices to protect and restore urban watersheds. He currently directs the Chesapeake Stormwater Network, a non-profit organization devoted to implementation of more sustainable stormwater practices across the Chesapeake Bay watershed. Tom also directs the Chesapeake Bay Stormwater Training Partnership, which provides webcasts, workshops and on-line training modules to train engineers on new practices. Tom also currently serves as the stormwater  coordinator for the EPA Chesapeake Bay Program, and has and has guided eight expert panels to define removal rates for urban BMPs, including stormwater retrofits, stream restoration, stormwater retrofits, LID practices, urban nutrient management, homeowner BMPs, enhanced erosion and sediment control, nutrient discharges from grey infrastructure and street cleaning. Tom also is active in promoting better stormwater regulations and permits in communities across the Bay. Tom has written more than a dozen local and state stormwater engineering design manuals. Tom founded the Center for Watershed Protection in 1992, and loves stream walks, good scotch, and bad dogs.

David J. Hirschman manages Hirschman Water & Environment, LLC, a consulting firm located in Charlottesville, VA, specializing in water resources planning and management.  He has thirty-five years of experience with stormwater and water resources management in the public, private, academic, and non-profit sectors.  Hirschman has worked across the country, developing stormwater and green infrastructure design manuals and specifications, designing green infrastructure projects, developing natural resources master plans, and orchestrating numerous trainings and workshops.  He has a B.A. in Biology from Duke University and a Master of Urban & Regional Planning from Virginia Tech.

Albert McCullough is the principal ecological engineer at Sustainable Science, LLC. There he provides services for shoreline stabilization projects, ecological restorations, and other environmental analyses and surveys. McCullough has worked in Maryland and Hawaii on a wide variety of wetland projects and is a certified wetland scientist and Corps of Engineers Wetland Delinator.  McCullough has a B.S.C.E in water resources engineering from the University of Maryland in College Park.


July 9: Soil Quality Restoration Deep Dive

Paul Miller, State Urban Conservationist, Iowa Department of Ag. and Land Stewardship
Jennifer Welch,Urban Conservationist, Polk Soil and Water Conservation District
Amy Bouska, Urban Conservationist, Iowa Department of Ag. and Land Stewardship

Presentation Description: TBA

Amy Bouska is an Urban Conservationist with the Iowa Department of Agriculture and Land Stewardship located in Iowa City. Amy works throughout Eastern Iowa providing technical assistance to communities, groups, and landowners interested in addressing water quality and drainage concerns. She has worked on numerous soil quality restoration projects.

Jennifer Welch is an Urban Conservationist in Ankeny and works for the Polk Soil and Water Conservation District assisting in and around the state’s largest metropolitan area of Des Moines. Jennifer works closely with local watershed management authorities to implement practices and policy change for improved stormwater management and quality of life.

Paul Miller is the State Urban Conservationist with the Iowa Department of Agriculture and Land Stewardship in Des Moines. Paul leads the urban conservation team in building partnerships, program capacity and assistance across the state.


August 13: Standard Stormwater Metrics: Incorporating National O&M Reporting Protocols into Asset Management Systems

Jane Clary, LEED, CPESC, Wright Water Engineers, Inc.
Ruth Hocker, P.E., D.WRE, CFM, City of Landcaster, PA

Presentation Description: TBA


September 10: Dissolved Contaminants & Their Importance to Stormwater Quality

Greg LeFevre, Ph.D, Assistant Research Engineer, University of Iowa

Presentation Description: We all know that sediment in stormwater is an important and highly visible water quality problem. As stormwater quality concerns have grown to include other types of chemical pollutants, the paradigm has often been ‘remove the particles, remove the pollutants.’ Unfortunately, significant quantities of pollutants in stormwater are not particle associated, and oftentimes approximately half of the pollutant loading in stormwater is attributable to the dissolved phase. For example, phosphorus is often assumed to be solely particle associated, but in some cases can be up to 90% in the dissolved phase. Dissolved pollutants are more bioavailable, mobile, and are captured via different mechanisms than particles. Thus, acknowledging and treating dissolved pollutants may be as important as particle removal in terms of affecting total pollutant loading. Examples of dissolved stormwater contaminants include dissolved nutrients (e.g., nitrate, dissolved phosphorus), dissolved metals (e.g., Cu, Zn, Cd), inorganic ions (e.g., salts) and dissolved fractions of organic contaminants (e.g., hydrocarbons, pesticides, vehicular compounds, emerging contaminants). In this webinar, I will present a summary of current state of knowledge on dissolved stormwater contaminants with some of their impacts, and focus on current research on how we can improve green infrastructure practices to maximize sustainable removal of dissolved contaminants. There is currently a greatly expanded interest in dissolved contaminant removal to address TMDL issues, promote groundwater recharge, protect surface water / groundwater quality, and beneficially reuse stormwater.

Greg is an assistant professor of environmental engineering and IIHR-Hydroscience & Engineering at the University of Iowa. His lab researches emerging contaminant fate and transformation, and how to apply low-energy engineered natural treatment systems to sustainably improve water quality and mitigate non-point pollutants. He has a speciality / experience in stormwater bioretention systems, especially the role of bio-processes (bacterial, plants, fungi) to capture and degrade stormwater contaminants. Greg did his PhD at the University of Minnesota studying biodegradation of petroleum hydrocarbons in raingardens, and did his postdoc at Stanford University researching plant-based remediation for water recycling and large-scale stormwater capture-treatment-recharge systems for aquifer augmentation. Greg started at UIowa in 2016 and is looking forward to building a collaborative network throughout the state and region!


October 8: Targeting At-Risk Turf Grass with GIS

Lisa Fraley-McNeal, Research Specialist, Center for Watershed Protection, Inc.
Karen Cappiella, Center for Watershed Protection, Inc.

Presentation Description: TBA

Karen Cappiella is Director of Research at the Center for Watershed Protection and has over 18 years of experience in watershed management. With a background in GIS and water quality, Karen’s areas of expertise include: applied watershed research; developing watershed management plans; producing technical guidance on watershed management; and proposal writing. Her areas of interest include protecting urban forests, use of GIS to analyze land cover changes and impacts, and costs and benefits of water quality management practices for MS4 and TMDL compliance. Karen is skilled at translating technical topics into simple and clear guidance, has extensive project management experience and is responsible for coordinating proposal submissions at the Center.

Lisa Fraley-McNeal is a Research Specialist at the Center for Watershed Protection with over 12 years of experience in watershed and stormwater management. Her expertise is in stream and watershed assessment, fluvial geomorphology, GIS, and technical writing. Lisa’s recent work at the Center has focused on the development of watershed restoration plans to meet local and Chesapeake Bay TMDLs, stream restoration assessment and crediting, participation in expert panels to develop crediting protocols for urban BMPs, and serving as the Associate Editor of the Center’s peer-reviewed journal, the Watershed Science Bulletin.