North Anna's reply: Contaminated Areas are posted if loose surface contamination levels are >1000dpm/100cm2. We use disc smears to quantify contamination levels.
Large Area masslinns or sticky rollers are used for contamination evaluation and particle surveys. Loose contamination found outside of contaminated areas (CCA?) is not controlled as contaminated unless >1000pdm/100cm2. Identification of low level contamination on surveys may trigger decontamination or further evaluation to determine the source. We use OREX coveralls for working in contaminated areas. Workers are allowed to wear OREX scrubs while working in the RCA. Protective clothing worn in posted contaminated areas are not treated as a PCE. Contamination (>100 ccpm) identified on modesty garments (scrubs) are treated as a PCE. Barbara J. Thompson Supervisor of Exposure Control Dominion - North Anna Power Station Email: [email protected] Phone: 540-894-2605 Beeper: #3469 FAX: 540-894-2408 -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of ALBISHARAT Sasha(A) - BRUCE POWER Sent: Monday, February 06, 2012 2:55 PM To: [email protected] Subject: Powernet: PCE's and loose contamination events Good Afternoon, I was wondering what your plants do for classifications of the following? Loose contamination? Is all loose contamination found outside of a CCA classified as loose contamination? Are there instances where it would not be counted as a loose event (floor cleaning, large area masslins, etc...)? Does your station use coveralls as RPPE or civil clothing? Do you use scrubs? Are events on scrubs or other coveralls all counted as PCE's? When would it not be counted? Thanks Sasha Albisharat Section Manager RP technical Support - Bruce A ----------------------------------- Powernet - a service of the Health Physics Society Power Reactor Section Powernet archives at http://www.mail-archive.com/[email protected]/ Reply to: [email protected] If Questions, contact Mike Russell, CHP at [email protected] 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. ----------------------------------- Powernet - a service of the Health Physics Society Power Reactor Section Powernet archives at http://www.mail-archive.com/[email protected]/ Reply to: [email protected] If Questions, contact Mike Russell, CHP at [email protected]
