Reply from Crystal River below. Chuck Burtoff Radiation Protection 352-795-6486 x3012
From: [email protected] [mailto:[email protected]] On Behalf Of Michael C Wynn Sent: Thursday, July 07, 2011 10:40 AM To: [email protected] Subject: Powernet: Bulk Volumetric Material Release from Protected or Controlled Areas Millstone Power Station would like to know concerning release of bulk volumetric materials from the Protected or Controlled Areas the following questions: 1. What are the radiological controls at your station for activities in areas outside the RCA, but within the Protected Area (also known as Restricted Area for radiation protection purposes), that involve renovation, repair, excavation, drilling, digging or cutting of material, components or soil that contain or may contain radioactive material? RP reviews each work activity via the work order approval process and determines the necessary controls, if any. Typical controls are notification of RP before breaching buried piping or upon accidently breaching a pipe, before soil is removed so it can be sampled, or prior to removing other components offsite. What are the radiological controls for these activities in the Controlled Area (as defined in 10 CFR 20)? 2. If applicable, is there guidance on determining: "contain or may contain radioactive material"? This would be added to the work order step as necessary. The history of the work area, in terms of prior contamination or potential contamination events, would be considered. 3. Is any allowance made for residual Cs-137 in soil from weapons fallout that is not considered licensed radioactive material from plant operations? No. Residual Cs-137 concentration from fallout in the vicinity of our plant is much less than our ODCM environmental LLD Cs-137 concentration value. Since we only count to environmental LLD concentration limits we would not expect to see Cs-137 unless it was due to licensed material. 4. How is RP notified of these types of activities outside the RCA? RP has an approval sign-off on the work order. 5. If an RWP is required: Generally not if all of the work is outside of the RCA. a. What general controls are specified? See #1 above. b. Are all supplemental personnel (for example roofers, laborers) required to have full radiation worker qualification, or a lower level such as escorted radiation worker? Depends on the specific work activity. c. Do the workers log-on the exposure control system with an electronic dosimeter for the RWP and wear the dosimeter during work activities? Generally not. Thank you all in advance for you help. Michael C. Wynn Supervisor Radiological Analysis Millstone Power Station Bldg. 437/2 Rope Ferry Road Waterford, CT 06370 Office: (860) 447-1791 Ext. 4815 Fax: (860) 444-4241 http://www.dom.com/ CONFIDENTIALITY NOTICE: This electronic message contains information which may be legally confidential and/or privileged and does not in any case represent a firm ENERGY COMMODITY bid or offer relating thereto which binds the sender without an additional express written confirmation to that effect. The information is intended solely for the individual or entity named above and access by anyone else is unauthorized. If you are not the intended recipient, any disclosure, copying, distribution, or use of the contents of this information is prohibited and may be unlawful. If you have received this electronic transmission in error, please reply immediately to the sender that you have received the message in error, and delete it. Thank you.
