New York officials on Monday announced new drinking water standards for the chemicals PFOA, PFOS and 1,4-dioxane, curtailing substances that have been at the epicenter of prominent contamination crises around the state.

The levels cap PFOA and PFOS at 10 parts per trillion for what is considered safe drinking water. A standard of 1 part per billion has been set for 1,4-dioxane, the first-ever level set for the contaminant.

“We’re proposing the most protective levels in the nation for three emerging contaminants to ensure we are regularly testing and fixing water systems before they ever rise to a public health risk in any part of the state,” Gov. Andrew Cuomo said.

“New York State will continue to lead in the absence of federal action by ensuring all residents have access to clean drinking water and by investing in critical projects to assist municipalities in treating these emerging contaminants.”

The water standards were set after water contamination crises arose in communities that include Hoosick Falls, Newburgh and Petersburgh as well as municipalities on Long Island.

The next step is for the Environmental Facilities Corp. and the state Department of Environmental Conservation to work with the state Department of Health to fund and overhaul water systems that test above the new maximum contamination levels.

Meanwhile, Cuomo’s office also announced $350 million in funds for through water infrastructure improvement programs to fund needed upgrades.

The development on Monday was cheered by environmental and clean water groups. But the Environmental Advocates of New York said the effort should go further.

“This long-awaited first step puts New York on a path to cleaner drinking water. Establishing Maximum Contaminant Levels (MCLs) for PFOA, PFOS, and 1,4-dioxane will require all public water systems in New York to test for these chemicals and take action when elevated levels of contamination are discovered,” said Maureen Cunningham, the group’s senior director for clean water.

“However, recent science shows that there is likely no safe level of these chemicals, and the state MCLs must reflect this. Environmental Advocates will continue to urge the Department of Health to bring their MCLs in line with the most recent science during the public commenting period.”