Dresden response We put two ARMs on each sump cover for redundancy. It is easy to detect when the sump water levels are low. Ops pumps sump to only clear the high-high alarm Temporary sumps have a float. We have had issues with them either being placed too low into the sump, or slipping down too far into the sump.
From: BURKS, ALLEN E [mailto:[email protected]] Sent: Sunday, March 27, 2016 2:53 PM To: '[email protected]' Cc: BURKS, ALLEN E Subject: [powernet] Control of Sumps during outages Grand Gulf Nuclear Station is performing a quick benchmark on how sumps are controlled during outages: 1. Do you have a process or procedure that you implement to monitor sumps with temporary pumps installed or instructions on how to place temporary pumps in place? If so can you share? 2. Do you put controls in place to monitor dose rates and personnel exposure in sumps with temporary pumps installed? Thanks, Allen Burks [email protected]<mailto:[email protected]> This Email message and any attachment may contain information that is proprietary, legally privileged, confidential and/or subject to copyright belonging to Exelon Corporation or its affiliates ("Exelon"). This Email is intended solely for the use of the person(s) to which it is addressed. If you are not an intended recipient, or the employee or agent responsible for delivery of this Email to the intended recipient(s), you are hereby notified that any dissemination, distribution or copying of this Email is strictly prohibited. If you have received this message in error, please immediately notify the sender and permanently delete this Email and any copies. Exelon policies expressly prohibit employees from making defamatory or offensive statements and infringing any copyright or any other legal right by Email communication. Exelon will not accept any liability in respect of such communications. -EXCIP
