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Presenter: Steven Trinkaus, PE

Seminar Date:

Seminar Location: Nanuet, NY

Hilton Garden Inn Nanuet
Nanuet, NY 10954
Phone: 845-623-0600

Register Now * Coordinator Registration Not Available.


Registration:                       8:00 - 8:30 am
Morning Session:               8:30 am - 12:30 pm
Lunch (On your own):        12:30 - 1:30 pm
Afternoon Session:            1:30 - 4:30 pm

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 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 (state and local)

Credit Information:

Who Should Attend

  • Architects
  • Engineers
  • Contractors
  • Landscape Architects
  • Floodplain Managers

Professional Engineers
     6.5 Continuing Ed. Hours

Architects & Landscape Architects
     6.5 HSW Continuing Ed. Hours
     6.5 AIA LU|HSW
     6.5 LA/CES HSW PDHs

Floodplain Managers
     6.5 ASFPM CECs

     Non-Credit Continuing Ed.

Continuing Education Credit Information

This seminar is open to the public and offers up to 6.5 continuing education hours to professional engineers and 6.5 HSW continuing education hours to architects and landscape architects in most states, including New York.

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

This event is approved by the American Institute of Architects Continuing Education System for 6.5 LU|HSW (Sponsor No. J885) and the Landscape Architecture Continuing Education System for 6.5 HSW PDHs. Only full attendance can be reported to the AIA/CES and LA/CES. Courses approved by the AIA qualify for New Jersey architects. Visit www.halfmoonseminars. org for complete AIA/CES information under this course listing.

HalfMoon Education is an approved continuing education sponsor for engineers in Florida, Indiana (License No. CE21700059), Maryland, New Jersey (Approval No. 24GP00000700). North Carolina, and North Dakota.

The Association of State Floodplain Managers has approved this course for 6.5 CECs.

This event offers a continuing education opportunity to construction contractors, but it has not been approved by any state with a continuing education requirement for contractors.

Attendance will be monitored, and attendance certificates will be available after the seminar for most individuals who complete the entire event. Attendance certificates not available at the seminar will be mailed to participants within fifteen business days.


Steven Trinkaus, PE

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 is the 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: $289.00
Online Tuition (pre-registration): $289.00
Group Prices
3 or more People: $269.00

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