Worried that rising temperatures and a festering algae bloom in Turkey Point’s cooling canals may hint at bigger problems for Florida Power & Light, Miami-Dade County officials said Tuesday they plan to assert the county's regulatory power to find out what’s ailing the aging canals.
“Clearly the cooling canal water is migrating outside the boundaries of their system,” Lee Hefty, director of the Division of Environmental Resources Management, told county commissioners before suggesting the county take action.
Since June, FPL has been struggling to control the hot canals and an algae bloom that has spread throughout the 168-mile loop. The canals were dug in the 1970s and act like a radiator to help keep the nuclear power plant from overheating.
The utility has twice asked the South Florida Water Management District for more water to freshen the canals. Earlier this summer, the agency signed off on up to 14 million gallons a day from the Floridan aquifer and last week agreed to a temporary permit for up to 100 million gallons of freshwater a day from a nearby canal.
The utility needed the county’s permission to lay pipes across endangered wetlands, a request that could have been granted by staff. But environmental groups asked for a public hearing, warning that a spreading underground saltwater plume potentially worsened by the hot canals posed a bigger risk to Biscayne National Park and area water quality.
“We have the distinction of being the only national park adjacent to a nuclear power plant,” park superintendent Brian Carlstrom told county commissioners. “We really need to understand why this unprecedented event is happening.”
The utility has blamed below-normal rainfall on the rising temperatures and increased salinity. In July and August, temperatures exceeded 102 degrees and twice threatened to shut down the plant. Because of the spike, the Nuclear Regulatory Commission raised temperature limits to 104 degrees to keep the plant operating. More here.