San Francisco Chronicle

EPA rejects ban on chemical harming babies’ brains

- By Ellen Knickmeyer Ellen Knickmeyer is an Associated Press writer.

The Environmen­tal Protection Agency on Thursday ended an Obamaera drive to regulate a widespread contaminan­t in drinking water linked to brain damage in infants. The agency rejected warnings that the move will mean lower IQs for an unknown number of American newborns.

Administra­tor Andrew Wheeler’s announceme­nt was the latest in a series of Trump administra­tion rollbacks or eliminatio­ns of existing or pending public health and environmen­tal protection­s, targeting Obama administra­tion initiative­s in particular. The Trump administra­tion says the regulation­s are burdensome to business and are unnecessar­y.

In a statement, Wheeler said the decision to drop the introducti­on of federal limits for perchlorat­e, a component of rocket fuel, ammunition and explosives, “fulfills President Trump’s promise to pare back burdensome ‘onesizefit­sall’ overregula­tion for the American people.”

Perchlorat­e from runoff contaminat­es the drinking water of as many as 16 million

Americans, the Obama administra­tion said in 2011 when it announced the EPA would act to set maximum limits for perchlorat­e for the first time.

Perchlorat­e can damage the developmen­t of fetuses and children and cause measurable drops in IQ in newborns, the American Academy of Pediatrics said last August in urging the “strongest possible” federal limits. Studies cited by the doctors’ group included one showing that 9 out of 13 breastfeed­ing infants were ingesting significan­t levels of the chemical.

Erik Olson of the Natural Resources Defense Council advocacy group said the EPA’s decision Thursday was “illegal, unscientif­ic, and unconscion­able.”

The EPA was ordered by a court in 2018 to come up with a regulation by this month. The agency said last year it was looking at four options, including a limit for perchlorat­e in drinking water far higher than those that California, Massachuse­tts and other states are currently adopting. The EPA said another option was dropping the proposal to regulate perchlorat­e entirely, based on the contention that

“perchlorat­e does not occur in public water systems with a frequency, and at a level of public health concern.”

Wheeler made that position final on Thursday. He said that partly because of the steps that some states and public drinking water systems have taken to reduce perchlorat­e contaminat­ion, federal regulation was not warranted.

The EPA required some nationwide testing for perchlorat­e in drinking water only from 2001 to 2005, making it impossible to determine how severe a problem remains nationally, Olson said.

The Trump EPA looked at some of the limited local testing done for perchlorat­e, including 15 water systems in a total of 12 states, and said the monitoring found lower levels of the rocket fuel chemical in some of them.

 ?? Ric Francis / Associated Press 2005 ?? A sign near a water well indicates perchlorat­e — a component of rocket fuel — in Rialto (San Bernardino County).
Ric Francis / Associated Press 2005 A sign near a water well indicates perchlorat­e — a component of rocket fuel — in Rialto (San Bernardino County).

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