Water Leak Incident and Repairs Update at BNL Facility
A water leak was detected in a 35-year-old 1000-gallon water-cooling system at a BNL facility. Repairs are in progress, with two options being pursued. Tritium levels were within safe limits, and no health impacts are anticipated. Regulatory agencies and the Community Advisory Council will be briefed on the situation.
Download Presentation
Please find below an Image/Link to download the presentation.
The content on the website is provided AS IS for your information and personal use only. It may not be sold, licensed, or shared on other websites without obtaining consent from the author. Download presentation by click this link. If you encounter any issues during the download, it is possible that the publisher has removed the file from their server.
E N D
Presentation Transcript
Take 5 for Safety E. Lessard January 31, 2017
Water Leak 35-year old 1000-gallon water-cooling system developed a leak at a weldment System contains water at 5% of the Drinking Water Standard for tritium System turned on 10-15-16 in preparation for RHIC Run 17 Searched inside 1000P pump/heat exchanger house and AtR buildings for leak for several weeks On January 19, Water Group isolated leak to 35-foot section of underground pipe between pump house and AtR Pressure tested and confirmed leak of 4 drops per second in this underground pipe on January 23 15 makeups (400 gallons) is the upper estimate of water leaked underground Discussed leak with ESH Directorate, BNL senior management, BHSO management, DOE management Repairs in progress; two repair options are being pursued, in parallel. The first repair option involves sleeving the existing aluminum piping, by inserting a smaller diameter (either 4 or 5 ) stainless steel pipe through the existing 6 aluminum pipe. The sleeving option is considered an interim, but effective, repair option that would enable system operation while the permanent solution is designed and implemented. The second permanent repair option involves re-routing the cooling water supply and return pipes aboveground using double-walled piping, with leak-detection capability Tritium was not detected in groundwater samples collected on Jan. 27, 2017 from an existing monitoring well immediately downgradient of the leak area No environmental, worker, or public health impacts are anticipated from the leak The Lab will brief its regulatory agencies and its Community Advisory Council during discussions this week and next 2
Decline in Tritium in Cooling Water at C-AD AGS Main Magnet LINAC RF PA Fast Quad RF Cavity SEM Linac Transport Linac Cavity (highest) Booster Main Magnet Booster RF Cavity Chilled Water F-10 RFPA 600,000 500,000 400,000 300,000 200,000 100,000 0 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 7
Picture of the Week Defensive Driving? 8
