Log in links for this page
- This page, Drinking Water Contaminants Information for Water Suppliers, is offered by
- Massachusetts Department of Environmental Protection
Drinking Water Contaminants Information for Water Suppliers
Table of Contents
Asbestos and PCE from Vinyl-lined Asbestos Cement pipe
Cryptosporidium and Giardia
This MassDEP guide to cyanobacteria includes general information about: what they are, the potential health risks, and where to get more information. It also includes fact sheets and resources for Public Water Suppliers.
Questionnaire conducted approximately every five years to determine the extent of the use of mercury-containing products at public water systems.
PFAS (Per-and Polyfluoroalkyl substances including PFOS and PFOA)
Background materials for Conservation Law Foundation/Toxics Action Center petition to regulate PFAS, and MassDEP's response to the petition.
What are PFAS, why are they a concern, and what MassDEP is doing about them.
This fact sheet provides answers to questions frequently asked by public water suppliers about Per- and Polyfluoroalkyl Substances (PFAS) on evaluating whether Public Water Supply (PWS) sources contain PFAS and on what a PWS should do if PFAS are detected in a public drinking water supply.
MassDEP in partnership with the Massachusetts Department of Fire Services (MassDFS) has a take-back program to assist fire departments in the proper disposal of legacy firefighting foams that could impact water resources.
Basic information about PFAS and what actions EPA is taking
This report summarizes MassDEP's surface water quality sampling effort after mosquito control aerial spray events in August and September, 2019. The effort was conducted in response to MDPH's issuance of a "Certification of Public Health Hazard that requires Pesticide Application to Protect Public Health."
This report summarizes MassDEP's surface water quality sampling effort after mosquito control aerial spray events in August, 2020. The effort was conducted in response to MDPH's issuance of a "Certification of Public Health Hazard that requires Pesticide Application to Protect Public Health."
Updated January, 28 2022.
Help Us Improve Mass.gov with your feedback
Thank you for your website feedback! We will use this information to improve this page.
If you need assistance, please visit the MassDEP Contacts & Service Center page.
If you would like to continue helping us improve Mass.gov, join our user panel to test new features for the site.