Pa. board votes down rule to limit manganese in streams to protect public health

An effort to put stricter limits on the amount of manganese that can be released in wastewater from Pennsylvania mines and other industries was rejected Thursday by a state regulatory review board.

Pennsylvania environmental regulators are proposing to lower the allowable limit of manganese in streams in response to research showing that elevated exposure to the mineral can be irreversibly harmful to children’s developing brains.

Mining industry representatives criticized DEP Thursday for creating an unworkable treatment standard and overblowing the health risks of manganese in waterways.

"Individuals do not make baby formula by dipping water from a stream," said John St. Clair, manager of permitting for Kittanning-based Rosebud M


Pa. board votes down rule to limit manganese in streams to protect public health

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