Mike,
Palo Verde provides the following response:
1. What are the radiological controls at your station for activities in
areas outside the RCA, but within the Protected Area, that involve renovation,
repair, excavation, drilling, digging or cutting of material, components or
soil that contain or may contain radioactive material? Radiological controls
in this area are limited to items such as excavation and digging (soil
related), we evaluate the proposed location against our decommissioning file,
and inside of our Turbine Building and ancillary areas (systems affected by
past tube leaks. in my instance we have identified these systems and assign an
RWP to the work order during the review process.
What are the radiological controls for these activities in the
Controlled Area (as defined in 10 CFR 20)? Outside of the Protected Area
within the owner controlled area we have numerous satellite RCAs such as the
ISFSI, low-level radioactive material storage building and a central chem. lab
for various analysis. Besides the other requirements, our concern here is
mostly 1801 and 1801 (access to, and control of radioactive material).
2. If applicable, is there guidance on determining: "contain or may contain
radioactive material"? Yes, see above. This is also covered extensively in our
material release procedure.
3. Is any allowance made for residual Cs-137 in soil from weapons fallout
that is not considered licensed radioactive material from plant operations?
Yes, if there is no licensed material is identified we will compare the
concentrations against the initial site radiological characterization study.
4. How is RP notified of these types of activities outside the RCA? Thru
the work control process
5. If an RWP is required:
a. What general controls are specified? Contact RP prior to
starting and prior to removing materials from systems or the Turbine Building
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? No. if they are doing a short duration job that has minimal
radiological significance we will use the escort process. if there is more
complexity and proximity to significant areas they go thru RWT training and are
badged.
c. Do the workers log-on the exposure control system with an electronic
dosimeter for the RWP and wear the dosimeter during work activities? If
required by the RWP, yes. And when they return they will be monitored by a
contamination and portable monitor and their tools surveyed in a tool monitor.
Seth.
From: [email protected] [mailto:[email protected]] On Behalf Of
Michael C Wynn
Sent: Thursday, July 07, 2011 7:40 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?
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"?
3. Is any allowance made for residual Cs-137 in soil from weapons fallout
that is not considered licensed radioactive material from plant operations?
4. How is RP notified of these types of activities outside the RCA?
5. If an RWP is required:
a. What general controls are specified?
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?
c. Do the workers log-on the exposure control system with an electronic
dosimeter for the RWP and wear the dosimeter during work activities?
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/
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