Xcel's Monticello nuclear plant shut down after failed fix for radioactive water leak.

TL;DR
Xcel Energy's Monticello nuclear plant in Minnesota was shut down after a fix to stop a leak in a pipe that carries radioactive water did not work. The plant was shut down on Tuesday, and the company said it is investigating the cause of the leak.
- Fix to stop leak at Xcel's Monticello nuclear plant did not work, prompting shutdown Star Tribune
- A nuclear plant that leaked 400,000 gallons of radioactive water will be shut down after second incident CNBC
- Xcel Energy says no threat to public after more radioactive water found WCCO - CBS Minnesota
- Xcel: Radioactive Leak Has Reached Groundwater KNSI
- Nuclear plant leak, Northern Lights, barefoot tours KELOLAND.com
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