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Presenter: Steven Trinkaus

Seminar Date:

Seminar Location: Online

This seminar is closed or full.


Low Impact Development, Day One
Wednesday, July 15, 2020, 10:00 AM - 2:05 PM CDT

Understanding and Implementing Principles of Low Impact Development (LID)

   Urban environment and water quality
   Conventional development and stormwater management
   Drawbacks of conventional approaches
   Origins of LID
   Principles and benefits of LID

Low Impact Development Hydrology Considerations

   Water cycle and site hydrology
   Defining hydrologic principles for LID
   Identifying regional hydrologic considerations
   Evaluating hydrologic outcomes
   Hydrologic tools for LID

Low Impact Development Site Planning

   Incorporating LID into common land development projects
   LID site planning tools
   Environmental Site Design (ESD)

Low Impact Development, Day Two
Thursday, July 16, 2020, 10:00 AM - 12:45 PM CDT

Low Impact Development Structural BMPs

   Choosing and designing best BMPs
   Site investigation
   Bioretention systems
   Dry swales
   Permeable pavements (porous asphalt, porous concrete, interlocking paver systems)
   Infiltration basins, trenches, underground systems
   Rain barrels
   Green roofs

Low Impact Development Economics, Construction and Maintenance Considerations

   Construction specifications
   Maintenance requirements

Low Impact Development Resources 

   Incorporation of LID into land use regulations
   LID model ordinances

Webinar Instructions

Each webinar session earns continuing education credit and can be registered for individually. All attendees must log-on through their own email – attendees may not watch together if they wish to earn continuing education credit. HalfMoon Education Inc. must be able to prove attendance if either the attendee or HalfMoon Education Inc. is audited.

Certificates of completion will be provided for each webinar attended and will be sent via email in PDF form about five business days after the conclusion of the series.

Webinars are presented via GoToWebinar, an easy-to-use application that can be run on most systems and tablets. Instructions and login information will be provided in an email sent close to the date of the webinar. It is highly recommended that you download, install and test the application before the webinar begins by clicking on the link in the email.

GoToWebinar App requirements: 
Windows 7 - 10 or Mac OSX 10.9 (Mavericks) - 10.14 (Mojave)

Web Browser:
The two most recent version of the following browsers:
Google Chrome, Mozilla Firefox, Apple Safari, Microsoft Edge
Internet Explorer v11 (or later) with Flash enabled

Internet connection:
 Minimum of 1Mbps       Hardware: 2GB RAM or more

For more information, visit the Support section at www.gotowebinar.com.

Credit Information:

Who Should Attend

  • Architects
  • Engineers
  • Other
  • Landscape Architects

     6.5 HSW CE Hours 
     6.5 AIA LU|HSW

     6.5 PDHs

Landscape Architects
     6.5 HSW CE Hours 
     6.5 LA/CES HSW PDHs

Floodplain Managers
     6.5 ASFPM CECs

Continuing Education Credit Information

See each course listing for the type and amount of each continuing education credit available. Individual courses for engineers and architects are not subject to pre-approval. HalfMoon Education does not apply for landscape courses in FL, NC, and NJ or land surveyor courses in FL, KS, NJ, TN and TX, unless expressly stated.

HalfMoon Education Certifying Entities

American Institute of Architects Continuing Education System (No. J885)

International Code Council (No. 1232)

Landscape Architect Continuing Education System

American Institute of Certified Planners (APA)

Boards of Engineering: Florida (No. 0004647), Indiana (License No. CE21700059), Maryland, New Jersey (Approval No. 24GP00000700), North Carolina (No. S-0130), and North Dakota.

Course-by-Course Providers: Association of State Floodplain Managers

HalfMoon Education is deemed a New York-approved continuing education provider for engineers and architects via its registration with the American Institute of Architects Continuing Education System (Regulations of the Commissioner §68.14(i)(2) and §69.6(i)(2)). NY landscape architects: §79-1.5(i)(2)


Steven Trinkaus

Principal at Trinkaus Engineering, LLC, in Southbury, CT

Mr. Trinkaus is an internationally-recognized expert in the field of low impact development, having presented at many ASCE/EWRI international conferences and many other regional conferences and workshops on LID and water quality issues. He has been an invited presenter and consultant in Taiwan, China and South Korea.   He has also presented on Sustainable Stormwater at the University of St. Andrews in Scotland.  Mr. Trinkaus has written LID design manuals for the Towns of Tolland, Plainville, Harwinton, East Granby, and Morris, Connecticut. He has designed many types of LID treatment systems for a variety of residential and commercial applications. Mr. Trinkaus is chair of the EWRI LID Guidance Document Task Committee and primary author of the Committee’s national guidance document on adopting LID standards.  Mr. Trinkaus is a licensed professional engineer in Connecticut and Maryland. He received a Bachelor of Science degree in Forest Management in 1980 from the University of New Hampshire. He has more than 38 years of experience in the land development field, more than 19 years of experience designing low impact development treatment systems, and six years of experience writing LID regulations and design manuals.

Tuition Costs:

Standard Tuition: $299.00
Online Tuition (pre-registration): $299.00

Each registration includes one copy of a manual prepared by the seminar speakers.

AIA Info:

AIA Provider Statement:

HalfMoon Education Inc. is a registered provider of AIA-approved continuing education under Provider Number J885. All registered AIA/CES Providers must comply with the AIA Standards for Continuing Education Programs. Any questions or concerns about this provider of learning program may be sent to AIA/CES (cesupport@aia.org or (800) AIA 3837, Option 3).

This learning program is registered with AIA/CES for continuing professional education. As such, it does not include content that may be deemed or construed to be an approval or endorsement by the AIA of any material of construction or any method or manner of handling, using, distributing, or dealing in any material or product.

AIA continuing education credit has been reviewed and approved by AIA/CES. Learners must complete the entire learning program to receive continuing education credit. AIA continuing education Learning Units earned upon completion of this course will be reported to AIA/CES for AIA members. Certificates of Completion for both AIA members and non-AIA members are available upon request.

Course Title: Low Impact Development

Delivery Method: Live

Course Description: This 6.5 hour live lecture presentation examines the principles of stormwater low impact development, hydrology considerations for low-impact development, site planning, structural best management plans, low impact development economics, construction and maintenance.

Learning Objectives:

Learning Objective 1:
Learners will be able to discuss environmental and water quality threats in urban areas, identify the drawbacks of conventional approaches to address stormwater, and explain the principles and benefits of low impact development (LID) strategies.

Learning Objective 2:
Learners will be able to explain the science of the water cycle and site hydrology, as a foundation to understanding and implementing the objectives of low impact development and treating stormwater runoff as intended by nature.

Learning Objective 3:
Learners will be able to identify and explain the objectives and applications of structural best management practices, including bioretention systems, dry swales, permeable pavement, infiltration basins, rain barrels, and green roofs.

Learning Objective 4:
Learners will be able to describe the process of low impact development site planning and discuss the economics, construction and maintenance considerations of low impact development projects.

LUs: 6.5                                                                                              LU Type: LU|HSWs.

Prerequisites: Familiarity with stormwater manager practices

Advance Preparation: None

Program Level: Intermediate

Course Expiration Date: 10/18/2022

Complaint Resolution Policy:

Complaints regarding this course can be emailed to doug@halfmoonseminars.org or by calling (715) 835-5900. A HalfMoon Education representative will respond within 72 hours to resolve the complaint, which will include, but not limited to, access to another CE activity at no or reduced cost or a full or partial refund. Each instance will be resolved on a case-by-case situation.