Xcel Energy fined $14,000 after leaks of radioactive tritium from its Monticello plant in Minnesota
Xcel Energy has been fined $14,000 related to leaks of radioactive tritium from its nuclear power plant at Monticello
MINNEAPOLIS — Xcel Energy has been fined $14,000 related to leaks of radioactive tritium from its nuclear power plant at Monticello, Minnesota regulators announced Thursday.
The relatively small fine was not for the leaks themselves, but because Xcel started pumping contaminated groundwater into a temporary storage tank before it had the necessary permit in place, which it later obtained. It's the only fine that the Minnesota Pollution Control Agency has levied against Xcel over the leaks, agency spokesman Stephen Mikkelson said.
The Monticello plant is about 40 miles (64 kilometers) northwest of Minneapolis, upstream from the city on the Mississippi River.
Xcel had already installed and filled more than 20 temporary tanks when MPCA staff informed the company in March of 2023 that adding an additional tank would require a permit because it would raise their total capacity over 1 million gallons (3.8 million liters) to just over 1.4 million gallons (5.3 million liters). But Xcel began filling the new tank in April before it obtained the required permit, the agency said in a statement.
The MPCA granted the permit in May, and it required the use of the temporary tanks to end by Nov. 1. The Minneapolis-based utility has since transferred the contaminated water to more permanent in-ground lined storage ponds and dismantled the temporary tanks, and says it continues to recover and reuse the contaminated water that leaked from the plant.
“We have resolved the issue and have taken all necessary corrective actions outlined by state regulators,” Xcel spokesman Kevin Coss said.
Tritium is a radioactive isotope of
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