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By Matthew Daly and Michael Phillis

The Associated Press

WASHINGTON 鈥� A decade after the聽water crisis聽in Flint, Michigan, raised alarms about the continuing dangers of lead in tap water, President聽Joe Biden聽on Tuesday set a 10-year deadline for cities across the nation to replace their lead pipes, finalizing an aggressive approach aimed at ensuring that drinking water is safe for all Americans.

Biden announced the final Environmental Protection Agency rule during a visit to the swing state of Wisconsin in the final month of聽a tight presidential campaign. The announcement highlights an issue 鈥� safe drinking water 鈥� that聽Kamala Harris聽has prioritized as vice president and during her presidential campaign. The new rule supplants a looser standard set by former President Donald Trump鈥檚聽administration that did not include a universal requirement to replace lead pipes.

鈥淔olks, what is a government for if it cannot protect the public health?鈥� Biden asked a crowd of union members at a cavernous Department of Public Works warehouse in Milwaukee. The city has the fifth-highest number of lead pipes in the nation, according to the EPA.

Decades after the dangers of lead pipes became clear, more than 9 million lead pipes remain in use 鈥� a fact Biden called shameful.

鈥淲e鈥檙e finally addressing an issue that should鈥檝e been addressed a long time ago in this country,鈥� he said. 鈥淲e are showing up as a partner to get it done.鈥�

Milwaukee is one of many cities across the country taking steps to remove lead pipes from their drinking water, EPA Administrator Michael Regan said. Officials are using money from the Infrastructure Investment and Jobs Act to accelerate lead-pipe replacement work and meet a goal to remove all lead pipes within 10 years, down from an initial 60-year timeframe.

鈥淓veryone wants this lead out,鈥� Regan told reporters. 鈥淭he science has been clear for decades 鈥� there is no safe level of lead in our drinking water.鈥�

The new EPA rule is the strongest overhaul of lead-in-water standards in roughly three decades. Lead, a heavy metal used in pipes, paints, ammunition and many other products, is a neurotoxin that can cause a range of disorders from behavioral problems to brain damage. The EPA estimates the stricter standard will prevent up to 900,000 infants from having low birth weight and avoid up to 1,500 premature deaths a year from heart disease.

The new regulation is stricter than the one聽proposed in fall聽2023 and requires water systems to ensure that lead concentrations do not exceed an 鈥渁ction level鈥� of 10 parts per billion, down from 15 parts per billion under the current standard. If high lead levels are found, water systems must inform the public about ways to protect their health, including the use of water filters, and take action to reduce lead exposure while concurrently working to replace all lead pipes.

Lead pipes often impact low-income urban areas the most. They are most found in older, industrial areas, including聽major cities聽such as Chicago, Cleveland, New York, Detroit and Milwaukee. The rule also revises the way lead amounts are measured, which聽could significantly expand聽the number of cities and water systems that are found to have excessive levels of lead, the EPA said.

To help communities comply, the agency is making available an additional $2.6 billion for drinking water infrastructure through聽the Infrastructure Investment and Jobs Act.聽The agency also is awarding $35 million in competitive grants for programs to reduce lead in drinking water.

The 10-year timeframe won鈥檛 start for three years, giving water utilities time to prepare. A limited number of cities with large volumes of lead pipes may be given a longer timeframe to meet the new standard.

Lead pipes can corrode and contaminate drinking water; removing them sharply reduces the chance of a crisis. In Flint,聽a change聽in the city鈥檚 drinking water source more than a decade ago made it more corrosive, spiking lead levels in tap water. Flint was the highest-profile example among numerous cities 鈥� including Newark, New Jersey and Benton Harbor, Michigan and Washington, D.C. 鈥� that have struggled with stubbornly high levels of lead.

The original lead and copper rule for drinking water was enacted by the EPA more than 30 years ago. The rules have聽significantly reduced聽lead in tap water but have included loopholes that allowed cities to take little action when lead levels rose too high.

鈥淓PA鈥檚 action today is a leap forward in protecting the health of tens of millions of Americans from this scourge,鈥� said Erik Olson, a health and food expert at the Natural Resources Defense Council.

Removing the lead pipes will be an enormous challenge, however. The Infrastructure Investment and Jobs Act approved in 2021 provided $15 billion to help cities replace their lead pipes, but the total cost will be several times higher. The requirement also comes as the Biden administration proposes strict new drinking water standards for harmful 鈥渇orever chemicals鈥� called PFAS. These standards will cost billions of dollars.

The American Water Works Association, which represents water utilities, said it supports EPA鈥檚 goals but warned that removal of lead pipes 鈥減oses cost challenges.鈥� Ultimately, most of the costs will fall to consumers through higher water bills, AWWA CEO David LaFrance said.

Fifteen Republican attorneys general, led by Kris Kobach of Kansas, have criticized the EPA rule as 鈥渦nworkable, underfunded and unnecessary.鈥� The GOP officials said they are concerned that homeowners in some places might have to pay to replace pipe sections under their property 鈥� a requirement Kobach said Congress did not authorize. Federal grants worth billions of dollars will help communities replace their pipes, the EPA said, but cost decisions ultimately are up to local utilities.

The rule鈥檚 benefits far outweigh the costs, Regan said.

鈥淲e believe we鈥檝e done it in a very strategic way 鈥� a legally sound way 鈥� supported by the science,鈥� he said.

Another hurdle is finding the lead pipes. Initial pipe inventories are due this month, and many cities have said they don鈥檛 know what substances their pipes are made of. Without knowing their locations, it is hard to efficiently replace them, according to Eric Schwartz, co-founder of BlueConduit, a company formed in response to the Flint crisis that helps cities find their lead pipes.

Avenel Joseph, interim executive vice president of the Robert Wood Johnson Foundation, called access to safe, affordable water a basic human right.

鈥淔or generations, lead exposure has silently robbed millions of children 鈥� especially those living in communities of color 鈥� of this right,鈥� she said. 鈥淲ith this regulation in place, our country finally says, 鈥楴o more.鈥欌��

Editor鈥檚 note: Phillis reported from St. Louis. AP writer Aamer Madhani in Milwaukee contributed to this story.