Session 3 // Funding and Planning for Green Roofs in New York City

Registration Eligibility
No Prerequisite Required
Start Date
End Date
1) Lot Size Soil Disturbance Threshold Determination for Development Projects in New York City
The NYC Department of Environmental Protection is preparing a Stormwater Management Program plan for its municipal separate storm sewer system (MS4). One component is determining the lot size soil disturbance/new impervious area threshold for construction and post-construction stormwater runoff management. The goal of this study was to determine the most appropriate threshold to balance water quality benefits with implementation costs. This threshold will be implemented in the form of a new stormwater rule for new development and redevelopment activities. A literature review and survey of peer utilities indicated that considerations for Stormwater Control Measure (SCM) implementation in urban areas include underlying soil characteristics and space availability. A hierarchical approach for SCM implementation was developed to select preferred technologies under various soil and space constraints. Impervious acres managed by SCMs and annual number of permit applications were calculated based on feasibility considerations and conceptual designs for pilot properties. Corresponding annualized life cycle costs were developed. InfoWorks models were used to establish the baseline scenario used to compare the effectiveness of SCMs implemented at different thresholds. For all threshold sizes, the combination of retention- and treatment-based SCMs were assessed and introduced in the InfoWorks models of 14 wastewater treatment plant drainage areas.

2) The National Green Infrastructure Certification Program – A Focus on Workforce Development
Green infrastructure (GI) has become a critical component to comprehensive stormwater management. While green infrastructure offers many environmental, societal, and economic advantages, these benefits can only be attained through proper system installation and ongoing maintenance. Thus, successful implementation of green infrastructure requires access to adequately skilled workforce available to perform the installation, inspection, and maintenance tasks. This workshop will discuss the benefit of investing in certification as a means of accessing and supporting that workforce. After a two-year pilot, WEF and DC Water launched the National Green Infrastructure Certification Program (NGICP) in 2018 to identify and recognize skilled workers in the construction, inspection, and maintenance of green infrastructure in accordance with industry best practices. The NGICP certification is designed to validate whether a person has the foundational knowledge needed to properly perform green infrastructure tasks. A certified person understands the objectives of green infrastructure, the way that different green infrastructure practices should function, and the critical tasks involved in constructing, inspecting, and maintaining these practices. By underscoring their competency in these areas, certification increases their competitiveness in the job market, and provides a pathway to higher paying positions. By investing in certification of their workforce, cities strengthen their long-term system performance and reinforce their case for increased green infrastructure investments. NGICP promotes a skilled green infrastructure workforce, streamlines the process of connecting qualified talent to in-demand jobs, supports community-based job creation in U.S. cities, and establishes national standards for professionals seeking to work on green infrastructure projects.

New York City, NY
Distance Learning
Course Equivalency
Green Roofs
Health, Safety and Welfare
Learning Outcomes
1) • Learn about NYC's MS4 policy-making process
• Learn about NYC's MS4 Program
• Learn about NYC's Green Infrastructure Program

2) • Understand the history of NGICP
• Learn about the national implementation
• Identify engagement opportunities for you and/or your institution
• Assess your investment in green infrastructure workforce development

3) • Role of the Green Infrastructure Grant Program
• Eligibility and the Application Process
• What Makes a Successful Grant Project and Why
1) Pinar Balci - Bureau of Environmental Planning and Analysis, NYC DEPJerry Kleyman - ArcadisSri Rangarajan - Boomi Environmental2) Adriana Caldarelli, National Green Infrastructure Certification Program3) Eliot Nagele - NYC DEP
Website Registration
Course Codes
Green Roofs for Healthy Cities

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