Information for . . .

Public Water Systems

Public Water Systems

Water utilities, mobile home parks, nursing homes, schools, factories, restaurants, campgrounds, etc.

Program Partners

Laboratories, training providers, federal and state agencies

Drinking Water Consumers

Public water system customers, private well owners and users

Drinking Water Professionals

Water operators, well drillers, engineers & consultants, oil tank installers, treatment providers, site evaluators, researchers


What's New?

  • Lead & Copper Rule Revision/Lead Service Line Inventories: Information about the new federal Lead and Copper Rule Revisions, including Lead Service Line Inventory guidance and tools.

  • Child Care Programs FREE Lead Water Testing Available: Testing for lead in child care drinking water is crucial in protecting children from the many negative effects of lead. To request your FREE lead testing kits and for more information, please visit our new Testing for Lead in Child Care Drinking Water webpage.
  • PFAS Testing in Drinking Water: With the signing of LD 129 on June 21st, 2021 by Governor Janet Mills, all community public water systems and non-transient, non-community schools and daycares are required to sample finished water for PFAS before December 31st, 2022. An interim standard of 20 ppt for six PFAS chemicals (alone or in combination) is in effect. More information on PFAS and LD 129 can be found on the Maine CDC Drinking Water Program (DWP) new PFAS webpage. The DWP will continue to update the PFAS webpage and sampling guidance as new information becomes available.

  • Public Water Systems can now view a report of all 2023 compliance samples received and processed to-date by the Drinking Water Program. The reports are updated every weekday. To view samples received for the 2022 compliance year, click here.
  • Lead Testing in School Drinking Water: With the signing of LD 153 (An Act to Strengthen Testing for Lead in School Drinking Water), the Maine Legislature has mandated that all K-12 schools in Maine test their drinking water for the presence of lead. The Drinking Water Program has been charged with coordinating the effort, which began October 1st, 2021.
  • No matter the size of your public water system, these materials will help take you to a place of increased cyber preparedness: Cybersecurity Tools to Understand, Evaluate, and Mitigate Risks for Maine Public Water Systems (PDF)
  • Updated 3/23/2023