While Xcel Energy reported the leak of water containing tritium to state and federal authorities in late November, the spill had not been made public before Thursday.
"The packaging of the products is not child resistant, posing a risk of poisoning if the contents are swallowed by young children," the U.S. Consumer Product Safety Commission said.
The news comes after First Republic's stock was pummeled in recent days, sparked by the collapse of Silicon Valley Bank last Friday and Signature Bank over the weekend.
An NBC News data analysis shows that while the six other big rail lines more than halved their accident rates in the past 20 years, Norfolk Southern’s stayed relatively flat.
Of the roughly $74 billion in total loans Silicon Valley Bank held on its books at year-end, almost half went to borrowers who invested the cash in securities of their own.
Silicon Valley Bank earned mostly good reviews from entrepreneurs of color who recalled strained alliances with the financial industry. The collapse has struck some as a potentially lasting setback.