Stormwater Retrofits for Meeting MS4 Treatment Requirements-Newton

Date: 7/25/2023 8:00 AM - 7/25/2023 12:00 PM

Location: Mount Ida Campus
100 Carlson Ave.

Newton, Massachusetts





Retrofitting sites to incorporate additional stormwater treatment is becoming increasingly important for municipalities and other entities to protect water quality and meet stormwater regulations. Although there are several regulations requiring stormwater retrofits, this class will focus on the retrofit requirements in the Massachusetts Small MS4 General Permit. The class will provide attendees with an overview of the requirements and strategies for meeting them. Focuses will include how to choose the best site for retrofits, best practices for design, and tools to quantify the impact of retrofits in order to track progress towards water quality goals.
Learning objectives include: 
1.   Review MS4 Permit requirements for permittees discharging to impaired waters
2.  Understand how to:
·       choose the best site for a stormwater retrofit
·       reconsider prescriptive/traditional design criteria in the retrofit scenario
·       use EPA's BMP performance curves to select and quantify the impact of BMPs
3.  Highlight additional strategies for enhancing a stormwater retrofit program 
4.  Introduce the New England Stormwater Retrofit Manual, and learn how this manual can be used as a tool to support retrofits. (This manual was developed by the Southeast New England Program (SNEP) Network in conjunction with University of New Hampshire Stormwater Center, VHB, and EPA Region 1.)
Target Audience:

Engineers, designers, stormwater program managers, public works directors, others responsible for MS4 compliance or operation and maintenance of stormwater infrastructure.

First Name Affiliation
Stephen BETA Group, Inc. (RI)
Jose GM2 Associates, Inc.
Sky Town of Milton
Jack Town of Chelmsford
Randy Town of Tewksbury
Eilish Town of Wellesley DPW
John Town of Natick
Kristin Town of Bedford DPW
Alison City of Framingham DPW
Joe Town of Medfield
Sheila Town of Chelmsford
Robert Town of Medfield
William Town of Natick DPW
QinRui Town of Acton
Christina Town of Billerica
Philip Town of Sudbury DPW
Jack Town of Milton DPW
Cambria City of Cambridge DPW
Salomon Town of Concord DPW- Engineering Division
  • Sarah Nalven
    Water Resources Scientist at VHB (HQ)
    Sarah Nalven is a Water Resources Scientist who specializes in watershed and waterbody assessment and planning, stormwater permitting, and stormwater asset management. She assists state and local government with a wide array of water resources challenges, and, recognizing that resources are limited, enjoys helping clients get the most stormwater treatment “bang” for their buck.
  • Nate Pacheco
    at VHB (HQ)
    Nate Pacheco is a Water Resources Engineer with experience in water quality modeling, water quality monitoring and sampling techniques, stormwater management system design, NPDES and MS4 Permit compliance and support, geoprocessing tool development, and database design/asset management. Nate was a key contributor in the development of the New England Stormwater Retrofit Manual and has presented on its contents at numerous conferences, webinars, and to regulatory agencies.