? Low Impact Development Center

While our aim is to make our website easy to understand and navigate we know there are times when you may need assistance.

We have provided a number of ways for our staff to help you:

Snail Mail


For GSA schedule information or training opportunities:
nweinstein [at] lowimpactdevelopment.org

For inquiries about resources, publications, or website questions:
info [at] lowimpactdevelopment.org

*Note about requests for publications, image permissions, and questions for staff:
1. See note below about SPAM.
2. Please add a subject line to your email with a brief description of your request.
3. Review the list of Staff Members below and when appropriate send a request directly to the staff person who may best assist you. We will add information to each staff person's bio to help you narrow down your choice.

*Note about response times for requests:
We will respond to you as soon as possible. If you do not hear from us within 48 - 72 hours then it is possible that the email was incorrectly received as SPAM. Please FAX your contact information along with a brief description of your request [ATTN: LID Center]. Thank you.


Please call us at:


Please fax us at:

Mailing Address

     5000 Sunnyside Avenue
     Suite 100
     Beltsville, Maryland 20705

LID Center Staff

Weinstein, Neil
Stack, Rebecca C.
Blakeslee, Megan
Clifton, Emily
Weyand, Nyree
Fleming, Kelly
Cho, Suzy
Miller, David

Neil Weinstein, P.E., ASLA, AICP, ENV PV is the Executive Director and one of the founders of the LID Center. Neil is a registered engineer and landscape architect and is a member of the American Institute of Certified Planners and the ASCE Urban Water Resources Research Council. He has an M.S. in Environmental Engineering from Johns Hopkins University and a M.L.A. from the University of Georgia. For the last 18 years Neil has primarily been focused on the planning, research, and design of innovative stormwater management practices, including LID. Prior to that he worked as a development engineer and planner on municipal, institutional, and private sector projects.
Email: nweinstein [at] lowimpactdevelopment.org
Rebecca C. Stack is the LID Center's Deputy Executive Director. She is a senior environmental engineer with over 15 years of professional experience in ecosystem engineering and watershed planning. She holds a Master of Urban Education from the City University of New York and a Bachelor of Civil Engineering from Northeastern University. Her doctoral research evaluated field scale performance of bioretention. Prior to joining the LID Center she was the technical lead and trainer on the District of Columbia's stormwater retention standard, including the Nation's first ever off-site stormwater retention trading program, along with the District's Green Area Ratio, an innovative sustainable environmental landscape performance regulation. Her prior work also includes directing the District's green roof incentive program, managing multiple LID research projects, and supervising LID construction projects. She is a frequent speaker at invited talks and technical conferences, with extensive teaching experience including graduate level courses in stream restoration at the University of the District of Columbia.
Email: rcstack [at] lowimpactdevelopment.org

Megan Blakeslee is the Director of Operations and Programs at the LID Center, working closely with the Executive Director in contributing to future growth of the organization and ensuring efficient operation of the office. In addition to overseeing company policies and preparing corporate documents, Megan is responsible for the tracking of grants, working with staff to ensure timely completion of project tasks within budget. She also participates in the grant proposal process and quality control for deliverables. Megan has a B.A. in Communication and a B.S. in Marketing from the University of Maryland.
Email: mblakeslee [at] lowimpactdevelopment.org

Emily Clifton, AICP is an Environmental Planner and Scientist with over 15 years of experience. She has an M.S. in Environmental Science and a Masters in Public Affairs from Indiana University. She also has a B.A. in Business Administration and a B.A in Philosophy from Austin College. Emily leads the LID Center’s effort on Green Infrastructure. She has provided leadership on design manuals, training, outreach efforts, research, and plan development and review. She has worked in the Washington, D.C. area to protect the Chesapeake Bay watershed since 2002.
Email: eclifton [at] lowimpactdevelopment.org

Nyree Dawne Weyand, PE is a Senior Environmental Engineer and LEED Green Associate at the LID Center. She has over 20 years of professional experience giving her extensive knowledge of principles and practices of civil engineering. She excels at land development design and management practices, with over 18 years of project experience with Prince George's County, Maryland. Ms. Weyand has worked on both private and public developments, with experience in federal, state, county, and municipal permitting.
Email: nweyand [at] lowimpactdevelopment.org

Kelly Fleming, RLA is a Senior Landscape Architect at the LID Center. She has a Bachelor of Landscape Architecture (BLA) from the University of Maryland and both a Master of Landscape Architecture (MLA) and a Master of Design Studies (MDesS) from Harvard. She has over 10 years of professional experience, as well as 2 years of teaching experience at UMD’s Landscape Architecture Program as Adjunct Faculty where she also collaborated with the Neighborhood Design Center working with municipalities in Prince Georges County. Kelly is responsible for the sustainability design effort at the LID Center.
Email: kfleming [at] lowimpactdevelopment.org

Suzy Cho is an Environmental Planner and a Landscape Architect at the LID Center. She has a Bachelor of Landscape Architecture (BLA) from the University of Maryland, College Park. Over the years, she has been working collaboratively across disciplines and on a variety of project types in the Washington D.C. Metropolitan Area. Suzy brings her knowledge in environmentally sensitive design, community revitalization, and stormwater retrofit projects.
Email: scho [at] lowimpactdevelopment.org

David Miller is an Environmental Engineer with over 5 years of expertise in flood plain study and land development. He has a B.S. in Civil and Environmental Engineering from the University of Maryland, College Park. David has experience with the FEMA NFIP, large and small scale urban development in Maryland, Virginia, and the District of Columbia, and the implementation of best management practices in a rural setting.
Email: dmiller [at] lowimpactdevelopment.org