Vermont Yankee narrows source of tritium leak

first_imgVermont Yankee engineers and technicians working to identify the source of tritium in the plant’s groundwater continue to make progress, according to a statement Saturday from Vermont Yankee.  They have identified a location in the protected area of the plant with a tritium concentration of 2.45 million picocuries per liter in a newly installed groundwater monitoring well along the west wall of the plant’s Advanced Offgas Building. Engineers are making plans for additional excavation in the area to check some underground equipment that is used to transport water containing tritium from the offgas building to other plant buildings. The offgas system processes gases from the plant’s condenser. The wells between the plant and the river are showing varying concentrations that are not markedly different from yesterday.The engineers now have ten monitoring wells in service and four others being prepared for sampling. The well data is being used to further characterize the tritium concentration in the groundwater near equipment and buildings.While this investigation continues, Vermont Yankee’s Rob Williams said in a statement that it is there has been no elevated tritium level found in any drinking water well samples or at any location not on plant property, including the Connecticut River. The EPA has set a limit of 200,000 picocuries per liter for safe drinking water.For more details on the tritium investigation, the Vermont Department of Health has a thorough status report on the investigation at this web link: http://healthvermont.gov/enviro/rad/yankee/tritium.aspx(link is external)Also helpful is the Nuclear Regulatory Commission web page on tritium monitoring: http://www.nrc.gov/reactors/operating/ops-experience/grndwtr-contam-trit…(link is external)last_img read more

Sherwood not optimistic over future

first_img Sherwood’s immediate future at White Hart Lane appears bleak as he leads Spurs into their final Barclays Premier League fixture of the season at home to Aston Villa on Sunday. The 45-year-old has been staving off questions about potential replacements, with Ajax coach Frank De Boer heavily linked with the White Hart Lane job over the past month. Tottenham head coach Tim Sherwood admits his managerial future remains uncertain and that he is not sure whether he will be in a top job at the start of next season. “We lost 1-0 to Arsenal at home and it was a one-sided game that we should have won. We got knocked out of the Europa League by possibly the winners, Benfica, who dropped down from the Champions League on 10 points and goal difference. “So it hasn’t been all bad when you analyse the thing. I think that Liverpool gave us a beating home and away. “What I have learned is that you can’t win unless you win. No-one wants anything dressed up. If you win, it covers over a multitude of sins.” Tottenham need just a point in their meeting with Villa to ensure Europa League qualification for next season but whether Sherwood will lead another charge into Europe remains to be seen. Press Association Southampton manager Mauricio Pochettino and Dutchman Louis van Gaal have also had their names mooted as potential successors to Sherwood, who is not sure what the future holds for him on a personal level. When asked if he would definitely be a manager somewhere at the start of next season, Sherwood replied: “No, I’m not confident. “Having tasted standing in that technical area and being a manager, it is something I want to be long-term. “I like doing it and until you’ve actually stood in there, no matter if you’ve been number two, number three, development coach, whatever, you don’t appreciate what it’s like.” Taking over from Andre Villas-Boas in December, the managerial role at Tottenham is Sherwood’s first in top-level football. The former Norwich and Blackburn midfielder, a Premier League winner in 1995, believes he has done well to start out at a club the size of Tottenham and that even poor results have been caused by issues out of his control. “I think I’ve handled it all right to be honest,” he said. “It gives me a great bedding and experience for the future. I think you are judged on results and we have taken some beatings off some of the bigger teams but two of those beatings were against Man City and Chelsea, in which we got two red cards and they were both rescinded – I haven’t started crying about that. last_img read more