Here are a few resources to consider:
- Massachusetts Department of Environmental Protection (MassDEP) lists a number of certified labs on its website at: https://www.mass.gov/certified-laboratories.
- You may also call the MassDEP regional office at: (508) 946-2700 , or email the MassDEP Drinking Water Program at: program.director-dwp@mass.gov for more information.
- Horsley Witten Group, Inc., located at 90 Route 6A, Unit 1, in Sandwich, MA; ph: (508) 833-6600; email: hwinfo@horsleywitten.com