- Merrimack River Watershed Council (John Macone)
- Groundwork Lawrence (Heather McMann, Lesly Melendez, Jorge Hernandez)
- YWCA Lowell (Andre Chandonnet)
- Mass DEP (Yvette DePezia, Frank Niles, John Fitzgerald)
- MWRA (Stephen Estes-Smargiassi)
- Lowell Regional Water Utility (Steven Duchesne, Mark Young, Michael Stuer)
- Dracut Water Supply District (Michael Sheu)
- Water & Sewer Department, Lawrence (William Hale)
- Town of Andover (Brian Peña, Christopher Cronin)
- Department of Health & Environment, KS (Robert Gavin)
- Thermo Fisher Scientific (Xiaowen Wen, Kannan Srinivasan, Mike Bates)
- Geoprobe Systems (Tom Christy)
- Elected Officials (Lori Trahan, Edward Markey)
