Nuclear News Roundup Apr 20, 2017 Operators of a nuclear power plant in Shenzhen have surrounded water intake pipes with gill nets to prevent the accumulation of shrimp that caused a minor safety incident last year. Scmp.com Nuclear power, which generates more than a third of Pennsylvania's electricity, could soon disappear from the state amid a glut of cheap natural gas from the Marcellus Shale play. And the first of the state's five plants to fall could be Three Mile Island, which could close as soon as 2019. Pennlive.com The Trump administration has notified Congress that Iran is complying with the terms of the 2015 nuclear deal negotiated by former President Barack Obama, and says the U.S. has extended the sanctions relief given to the Islamic republic in exchange for curbs on its atomic program. Abcnews.go.com Nuclear Waste Raises Concerns in Southern California. Power Plant plans to bury radioactive material near San Onofre surf zone. Surfline.com