Exelon, LaSalle County Station would like to know:
If your site utilizes a mat to cover the under vessel sump area to monitor leakage during operation. Each outage the mat is removed (destroyed in the process) and another mat is installed. This activity results in ~ 1 Rem of exposure and expenses for a new mat ~ 15K. LaSalle is requesting assistance to eliminate the mat and utilize another mechanism to monitor leakage. The mat is used because the equipment and floor drain sumps are located under vessel and are covered with multiple plates that fit into place, these plates have seams which can leak , which would affect leakage monitoring. Please answer the questions below. 1. Do you have the same sump configuration as LaSalle - where both sumps are located under vessel? 2. Do you use a mat under vessel for your sumps? 3. If you do use a mat, is it changed out each outage? 4. If you don't use a mat and have the same configuration as LaSalle what mechanism do you use to monitor leakage? Thanks Steve Lorenz LaSalle Station Decon/ARW Supervisor '(815) 415-2390 Pager:(815) 983-0340 Home:(815) 436-5053 Cell:(815) 592-6276 Fax:(815) 415-4018 [email protected] This e-mail and any attachments are confidential, may contain legal, professional or other privileged information, and are intended solely for the addressee. If you are not the intended recipient, do not use the information in this e-mail in any way, delete this e-mail and notify the sender. -EXCIP
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