“Red Clay Valley Scenic Byway Corridor Management Plan”
Public hearing/ lecture on Delaware’s first watershed-based scenic byway corridor management plan, November 2007

“Zoning Intended to Implement the Paoli Community Master Plan”
Public hearing/ lecture regarding zoning intended to permit 1+ million square feet of multi-modal, mixed-use development incorporating green building/roof LEED’s incentives; redevelopment of a superfund site in Willistown and Tredyffrin Townships, PA, August 2007

“Conservation Design Techniques for Improved Stormwater Management: Tools to Consider in Local Codes”
Lecture at the Delaware / Maryland APA Regional 2006 Conference October, 2006

“Planning That Protects Natural Resources: Tools to Consider”
Lecture at Non-Point Education for Municipal Officials (NEMO) Seminar May 2006

“Making Conservation Design Work: Issues to Consider in Local Codes”
Lecture at the Delaware Conservation Design Roundtable March 2006

“Nutrient Loading Assessment and Land Development”
Lecture for the Delaware Department of Natural Resources and Environmental Control (DNREC) conference on its Nutrient Loading Assessment Protocol, January 2006

“The Integration of Low Impact Development and Conservation Design, The New Castle County, Delaware Experience”
Joint presentation at the 2005 Pennsylvania Stormwater Management Symposium, Villanova University, October 2005, John M. Gaadt, AICP & Michael Clar, P.E.

"Developing Conservation Design Programs - The Mechanics of Conservation Design and its Application in a Residential Setting"
Lecture at the Delaware Pollution Control Strategy Conference (2003); additional lectures to New Castle County Council and Planning Board (DE), Civil Engineers Council (DE), General Public, 2002 to present.

"Development of a County-Wide Model Stormwater Management Ordinance - The 'Watersheds' Experience"
Lecture at the 2003 Pennsylvania Stormwater Management Symposium, Villanova University, October 2003

"Watersheds, An Integrated Water Resources Plan for
Chester County, Pennsylvania"
Lectures to American Water Resources Association National Conference, County Water Resources Task Force, Commonwealth of Pennsylvania, and General Public, January 1999 to present

"A Statewide Transfer of Development Rights (TDR) Program for Delaware"
Lectures to a statewide Governors Task Force charged with developing a TDR program for the State of Delaware, Delaware Farm Bureau Annual Conference, January 2002 to December 2002

"Sandy Run Creek Watershed Conservation Plan"
Lectures to Commonwealth of Pennsylvania and General Public, January 1999 to January 2001

"Natural Resource Protection Measures in New Castle County, Delaware"
Lectures to State of Delaware, New Castle County Council, New Castle County Planning Board, and General Public, 1996 to present

"Alternatives to Conventional Sewage Treatment"
Lecture at Pennsylvania State University, Delaware County Campus, October 19, 1995

"Water Based Land Use Regulatory Program"
Lectures at the Annual Mid-Atlantic Council of Watershed Associations Conference, Chadds Ford, PA, December 1, 1993 and Pennsylvania Planning Association Conference, Pittsburgh, PA, October 12, 1993

"Wastewater Reclamation and Reuse in the Red Clay Valley"
Lecture at the Red Clay Creek Conference V, Delaware Nature Society, November 1, 1993

"Innovative Sewage Treatment Alternatives"
Lecture at Montgomery County, PA, Sewage Facilities Workshop, September 15, 1993

"The Lower Merion Township, PA, Natural Features Conservation Ordinance"
Lecture at the Land Trust Alliance Rally 1990, Villanova, PA

"Natural Features Conservation"
Lecture at the Southeastern Pennsylvania Urban Forestry Conference, Morris Arboretum of The University of Pennsylvania, April 18, 1990