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{{#Wiki_filter:_. -                     ._.
{{#Wiki_filter:_. -
                                                                                                                                ,
._.
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                    jp  tt;p                                       UNITED STATES
-
                  p         "g                         NUCLEAR REGULATORY COMMIS$10N
-
                                                                        REGION 11
.
                                                                                                                                      i
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                ['                                                                                                               ~{
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                $               g                              101 MARIETT A STRE ET, N.W.
UNITED STATES
                *                                                                                                                   l
j
                                2                               ATLANTA,GEDR3tA 30323 '                                             -
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                  %i ,, . #                                     M)6 3 01990
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                                                                                                                                    i
NUCLEAR REGULATORY COMMIS$10N
                    Report Nos.: 50-327/90-23 and 50-328/90-23                                                                     i
i
                    Licensee: Tennessee Valley Authority                                                                           ;
['
                                  6N38a lookout Place                                                                               l
REGION 11
                                  1101 Market Street'                                                                             .;
~{
                                  Cnattanooga, TN 37402-2801
$
                    Docket Nos.: 50-327 a".1 50-326                         Licensee Nos.:           DPR-77 and DPR-79             i
101 MARIETT A STRE ET, N.W.
  ,
l
                                                                                                                                    :
g
                    Facility Name: Sequoyah I and 2
*
                                                                                                                                    ,
2
                    Inspection Conducte .           Ju e'25-29, 1990                                                               :
ATLANTA,GEDR3tA 30323 '
                    Inspecto :
-
                                  R/B
% ,, . #
                                      //              dge
M)6 3 01990
                                                                                                              I      #
i
                                                                                                                          gned
i
                                  W. pl ' o~         e                                                       Fat ' Signed         ,
Report Nos.: 50-327/90-23 and 50-328/90-23
                                        '
i
                    Approved by:       _
Licensee: Tennessee Valley Authority
                                                                        ~                                     /.V O                '
;
                                                                                                                                    '
6N38a lookout Place
                                    d(P. . Potter,' ChWf                                                     Uate' Signed
l
                                    Facilities kediation Protection Section -                                                     '
1101 Market Street'
                                    Emergency Preparedness and Radiological
.;
                                      Protection Branch                                   '
Cnattanooga, TN 37402-2801
                                    Division of Radiation Safety and Safeguards
Docket Nos.: 50-327 a".1 50-326
                                                  1
Licensee Nos.:
                                                                      SUMMARY
DPR-77 and DPR-79
                    Scope:                                                                   #'
i
                                                ,
,
                                                            ,
:
                                                                                                                                    !
Facility Name: Sequoyah I and 2
                    This routine, unannounced inspecthn of radiation protection activities focused                                 i
,
                    on the plant program to maintain occupational! dose to workers as low as                                         '
Inspection Conducte .
                    reasonably achievable (ALARA).
Ju e'25-29, 1990
                    Results:
:
                    No violations or deviations were identified. . All elements.necessary for an.
//
                    adequate ALARA program were in place.                     However, there were weaknesses in
I
                    program implementation in the following areas: accountability for. collective -
#
                    dose by department managers (Paragraphs 2.b and c); establishment of collective
Inspecto :
L,                 dose goals and management of collective dose (Paragraph 2.d); implementation of-
R/B
                    a comprehensive source term reduction program; at Sequoyah--(Paragraph 2.h).-                                 -,
dge
                    reduction of contaminated areas of the plant (Paragraph 2.1); . awareness                                       1
gned
                    training for plant staff and radiological impact evaluators and implementation-                                 i
W. pl ' o~
                    of an ALARA standard for the station (Paragraphs 2.j and k). : Based on the                                   .]
e
                    telephone conversation discussed in Paragraph 3, the NRC, Region II-under_ stands
Fat ' Signed
-
,
                    that Sequoyah is taking action on several of these matters.                                                     ,
/.V O
                                                                                                                                    l
'
                                                                                                                                    i
Approved by:
                                                                                                                                      I
_
      9009140202 900830                                                                                                         -l
~
      PDR           ADOCK 05000327
'
      G
'
        .-. _.                   _.
d(P. . Potter,' ChWf
                                      PNU  . - .   .-               ~                         ,- .-
Uate' Signed
                                                                                                                                    J
Facilities kediation Protection Section -
'
Emergency Preparedness and Radiological
Protection Branch
'
Division of Radiation Safety and Safeguards
SUMMARY
1
Scope:
!
#'
,
,
This routine, unannounced inspecthn of radiation protection activities focused
i
on the plant program to maintain occupational! dose to workers as low as
'
reasonably achievable (ALARA).
Results:
No violations or deviations were identified. . All elements.necessary for an.
adequate ALARA program were in place.
However, there were weaknesses in
program implementation in the following areas:
accountability for. collective -
dose by department managers (Paragraphs 2.b and c); establishment of collective
L,
dose goals and management of collective dose (Paragraph 2.d); implementation of-
a comprehensive source term reduction program; at Sequoyah--(Paragraph 2.h).-
- ,
reduction of contaminated areas of the plant (Paragraph 2.1); . awareness
1
training for plant staff and radiological impact evaluators and implementation-
i
of an ALARA standard for the station (Paragraphs 2.j and k). : Based on the
.]
telephone conversation discussed in Paragraph 3, the NRC, Region II-under_ stands
-
that Sequoyah is taking action on several of these matters.
,
l
i
9009140202 900830
-l
PDR
ADOCK 05000327
J
G
PNU
.-.
.
.
. - .
.-
~
,- .-


                                                                  __     - . _ _ -                       _ - - _ - _ _ _ _ _ _ _
__
                                                                                                                                  a
-
  , . , . . . .
. _ _ -
                                                                                                                                  :
_ - - _ - _ _ _ _ _ _ _
                                                                                                                                  !
a
                                                                                                                                  i
. , . . .
                                                                                                                                  ;
.
                                                                                                                                  '
,
                                            REPORT DETAILS
:
                                                                                                                                  I
!
          1.   Persons Contacted
i
t               Licensee Employees
;
l                                                                                                                                 ,
REPORT DETAILS
              *R. Beecken, Manager, Maintenance                                                                                   !
'
              *H. Burrynski, Manager Site Licensing                                                                               i
I
                J. Bynum, Vice President, Nuclear Power Production
1.
                                                                                                                                  :
Persons Contacted
              *W.   Byrd, Manager, Project Controls & Financial Services
t
              *R. Daniels Engineer, Nuclear Engineering                                                                           ;
Licensee Employees
              *G. Fiser, Superintendent, Chemistry and Environmental                                                               ,
l
              *S. Holdefer, Health Fhysicist,' Radiological Controls                                                               !
,
              *G. Hudson, Corporate Manager, Radiological Controls                                                               j
*R. Beecken, Manager, Maintenance
              *M. Lorek, Superintendent. Operations
!
                                                                                                                                  '
*H. Burrynski, Manager Site Licensing
              *J. Osborne, Health Physicist, Radiological Controls
i
              *J. Proffitt, Acting Manager, Compliance Licensing                                                                   ;
J. Bynum, Vice President, Nuclear Power Production
              *W. Smith, Specialist, Quality Assurance                                                                             i
:
                                                                                                                                  ;
*W. Byrd, Manager, Project Controls & Financial Services
              *M. Sullivan, Superintendent, Radiological Controls
*R. Daniels Engineer, Nuclear Engineering
              *P. Trudel, Project Engineer, Nuclear Engineering                                                                   i
;
                                                                                                                                  '
*G. Fiser, Superintendent, Chemistry and Environmental
              *C. Vondra, Plant Manager
,
              *C. Whittemore, Engineer, Licensing                                                                                  >
*S. Holdefer, Health Fhysicist,' Radiological Controls
                Other licensee employees contacted during this' inspection included
!
                craf tsnan, engineers, mechanics, technicians, and adn.inistrative                                                ,
*G. Hudson, Corporate Manager, Radiological Controls
                personnel.                                                                                                        ,
j
                Nuclear Regulatory Connission
*M. Lorek, Superintendent. Operations
l            *P. Harmon, Senior Resident Inspector                                                                                ,
'
                                                                                                                                  '
*J. Osborne, Health Physicist, Radiological Controls
*J. Proffitt, Acting Manager, Compliance Licensing
;
*W. Smith, Specialist, Quality Assurance
i
;
*M. Sullivan, Superintendent, Radiological Controls
*P. Trudel, Project Engineer, Nuclear Engineering
i
'
'
              *D. Loveless, Resident Inspector
*C. Vondra, Plant Manager
              * Attended exit interview
*C. Whittemore, Engineer, Licensing
          2.    MaintainingOccupational-ExposuresALARA(83728)
>
                10 CFR 19.12, states, in part, that all individuals working in or                                                ;
Other licensee employees contacted during this' inspection included
                                                                                                                                  '
craf tsnan, engineers, mechanics, technicians, and adn.inistrative
                frequenting any portion of a restricted area; shall -be instructed in
,
                precautions or procedures to minimize exposure.
personnel.
g                10CFR20.1(c) states,inpart.thatpersonsengagedinactivitiesunder
,
Nuclear Regulatory Connission
l
l
                licenses issued by the NRC should, in addition to complying with the                                              '
*P. Harmon, Senior Resident Inspector
,
,
                requirements set forth in this part, make every reasonable effort to
'
                maintain radiation exposures, as low as reasonably achievable (ALARA). .
*D. Loveless, Resident Inspector
'
* Attended exit interview
2.
MaintainingOccupational-ExposuresALARA(83728)
10 CFR 19.12, states, in part, that all individuals working in or
;
frequenting any portion of a restricted area; shall -be instructed in
'
precautions or procedures to minimize exposure.
10CFR20.1(c) states,inpart.thatpersonsengagedinactivitiesunder
g
l
licenses issued by the NRC should, in addition to complying with the
'
,
requirements set forth in this part, make every reasonable effort to
(
(
,               Other recontended elements of an ALARA program are contained in Regulatory
maintain radiation exposures, as low as reasonably achievable (ALARA). .
                                                                                                                                  ,
,
                                                                                                                                  ,
Other recontended elements of an ALARA program are contained in Regulatory
                Guides 8.8 and 8.10.
,
                                                                                                                                  1
,
                The following are observations that the inspectors made during the
Guides 8.8 and 8.10.
                inspection. The observations were idcntified for licensee consideration.
1
                for program improvement, but have no specific regula*;ory requirement.                                             ,
The following are observations that the inspectors made during the
                                                                                                                                  i
inspection. The observations were idcntified for licensee consideration.
                                                                                                                                  i
for program improvement, but have no specific regula*;ory requirement.
                                                                                    , - , - - . . , . . .
,
i
i
, - , - - . . , . . .


        .             .--                   .        .      .  .
.
                                                                                                              !
.--
              .. .
.
                                                                                                              ;
.
                    .  .
.
          .
.
            .
!
                                                                                                              ;
                                                                2                                            i
                                                                                                              i
                                                                                                              t
                                                                                                              i
                        a. ALARA Program                                                                    j
  .                        The station's ALARA program was controlled by three administrative              :
                            procedures, ALARA Planning, Site ALARA Connittee, . and ' ALARA                  :
;
;
                            Suggestion Procram. These procedures described personnel functions           -I
.. .
.
.
.
.
;
2
i
i
t
i
a.
ALARA Program
j
The station's ALARA program was controlled by three administrative
:
.
procedures, ALARA Planning, Site ALARA Connittee, . and ' ALARA
:
Suggestion Procram.
These procedures described personnel functions
- I
;
and responsibilities for the program and name the Site Director as
"
"
                            and responsibilities for the program and name the Site Director as
having the ultimate onsite authority and responsibility for its-
                            having the ultimate onsite authority and responsibility for its-                 .
.
                            implementation. The Superintendent of Radiological Controls (RADCON)             :
implementation. The Superintendent of Radiological Controls (RADCON)
                            advised the Plant Manager and supervisors regarding dose reduction,.
:
                            and plant supervision was responsible for implerrenting procedures to
advised the Plant Manager and supervisors regarding dose reduction,.
                            reduce collective dese. In addition, first .line supervision was                 ;
and plant supervision was responsible for implerrenting procedures to
                            responsibic to actively pursue' and encourage the subniittal of ALARA .         i
reduce collective dese.
                            suggestions, and each individual was to be cognizant of, and work to
In addition, first .line supervision was
                            minimize, his or her dose.
;
                          b. Dose Accountability                                                             f
responsibic to actively pursue' and encourage the subniittal of ALARA .
                                                                                                              !
i
                            The inspectors reviewed the licensee's method to account for the                 l
suggestions, and each individual was to be cognizant of, and work to
                            station's collective dose. The review included an examination of
minimize, his or her dose.
                            selected ALARA pre-job and post-job reviews and discussions with
b.
                            licensee representatives. It was observed that for the Unit 1. (UI,             *
Dose Accountability
                            C4) refueling outage, approximstely 90 percent of the station's
f
                            collective dose (893 person-rem out of g8? person-rem accumulated)               ,
!
                            underwent an ALARA review. On the average, the licensee had been
The inspectors reviewed the licensee's method to account for the
                            performing ALARA reviews for. approximately 85' percent of the                   ;
l
                            station's collective dose. The licensee had an adequate program for             ,
station's collective dose.
                            dose accountability although, as .noted. . in Paragraph 2.c of this.
The review included an examination of
                            report department management was not always utilizing the information,           i
selected ALARA pre-job and post-job reviews and discussions with
                            All jobs whose estimated collective dose was greater than l' man-rem             !
licensee representatives.
                            received an ALARA review by the radiological controls group. Jobs               !
It was observed that for the Unit 1. (UI,
                            whose estimate was greater than five person-rem went to the ALARA
*
                            Comittee for review. Job history files which were used during the
C4) refueling outage, approximstely 90 percent of the station's
                            review process, were maintained by the radiological l controls group.           l
collective dose (893 person-rem out of g8? person-rem accumulated)
                            The _ inspectors also reviewed radiologicalt incident reports (RIP,s)
,
                            covering the period from January to June 1990, and observed that
underwent an ALARA review.
                            there were no significant ALARA program weaknesses or trends                     I
On the average, the licensee had been
                            identified. One RIR identified an isolated event in which a group of             !
performing ALARA reviews for. approximately 85' percent of the
                            resistance temperature detector (RTD) modification' fitters removed.             ,
;
                            insulation 'and lead shielding without proper health. physics (HP)               .
station's collective dose.
                            coverage. The licensee took inrediate corrective action and escorted             t
The licensee had an adequate program for
                            the fitters from the work area and analyzed their personnel                     ;
,
                            dosimeters.       There were no individual doses which exceeded the-           l
dose accountability although, as .noted. . in Paragraph 2.c of this.
                            administrative limits. The long term corrective actions included
report department management was not always utilizing the information,
                                                                                                              '
i
                                                                                                              .
All jobs whose estimated collective dose was greater than l' man-rem
                            retraining on RWP requirenents, a review of the event, and a review           -!
!
                            on the proper method to notify HP.
received an ALARA review by the radiological controls group.
                                                                                                              !
Jobs
                                                                                                              ,
!
                                                                                                              t
whose estimate was greater than five person-rem went to the ALARA
                                                                                                          '
Comittee for review.
                                                                                                            -r
Job history files which were used during the
                                                                                                              ,
review process, were maintained by the radiological l controls group.
  --g- -
l
                      e           .-w - - -..               ,       y   nweL     -,..,s ,--         - - ,
The _ inspectors also reviewed radiologicalt incident reports (RIP,s)
covering the period from January to June 1990, and observed that
there were no significant ALARA program weaknesses or trends
I
identified. One RIR identified an isolated event in which a group of
!
resistance temperature detector (RTD) modification' fitters removed.
,
insulation 'and lead shielding without proper health. physics (HP)
coverage. The licensee took inrediate corrective action and escorted
.
t
the fitters from the work area and analyzed their personnel
;
dosimeters.
There were no individual doses which exceeded the-
l
administrative limits.
The long term corrective actions included
'
.
retraining on RWP requirenents, a review of the event, and a review
- !
on the proper method to notify HP.
!
,
t
'
- r
,
--g-
-
e
.-w
- - -..
,
y
nweL
-,..,s
,--
- - ,


            .   - - . . -   -       -             -       .-.   --
.
                                                                                                    :
- - .
      . . .   .
. -
  , ,                                                                                               l
-
                                                                                                    !
-
                                                                                                    i
-
                                                      3
.-.
                                                                                                    +
--
                                                                                                    f
:
                                                                                                  s
l
                      During this inspection, interviews with several departmental n.anagers       !
. . .
                      cn ALARA awareness and accountability were conducted.     The licensee       i
.
                      had identified that it was not clear that line n.anagement was held           !
,
                                                                                                    '
,
                      accounttble for radiological dose performance goals. Licensee
!
                      representatives indicated that in response to this finding, inclusion        ;
3
                      of departnental collective dose performance e als in departnental            4
i
                      managers' performance appraisals would be evaluated and considered.          !
+
              c.    Dose Management                                                              I
f
                      The inspectors interviewed several departmental managers, reviewed
s
                      managsment tools used to. track. collective dose, and reviewed the            ,
!
                      departmental collective dose perfonnance against the dose allotnent.          !
During this inspection, interviews with several departmental n.anagers
                      Theinspectorsdiscussedwithlicenseemantgersandsupervisorsthe                  :
cn ALARA awareness and accountability were conducted.
                      utility s ALARA program, including their knowledge of ALARA goals,            *
The licensee
                      concepts, policies - and procedures individual responsibilities,            1
i
                      personnel exposure, and dose limits. Additionally, the discussions-
had identified that it was not clear that line n.anagement was held
                      included managers' cons.unication with co-workers and supervisors,            .
!
                      participation in the ALARA suggestion program, the n.anagers'
                      perspective on how to iniprove the ALARA program, what events have          -!
                      caused increased personnel dose, and what events or conditions have          !
                      helped reduce personnel radiation doses. The: inspectors interviewed          .
;                    n.anagers or supervisors from the following departments: maintenance,        *
'
'
                      nuclear engineering, operations, technical support, and steam                 l
accounttble for radiological dose performance goals.
                      generator maintenance. Each individual interviewed was generally
Licensee
                      familiar with' the basic ALARA concepts. - Additionally. -individuals         ,
representatives indicated that in response to this finding, inclusion
                      interviewed knew that they had a- basic responsibility for-
;
                      implementing the utility's ALARA program by performing tasks in a
of departnental collective dose performance e als in departnental
                      manner- consistent with the utility's ALARA- policy. Although it
4
                      appeared that u.anagers were aware of departmental dose goals, only           i
managers' performance appraisals would be evaluated and considered.
                      one of the n.anagers interviewed knew his numerical departnental
!
                                                                                                    '
I
                      collective dose goal. 'Similarly, only one of the managers
c.
                      intin!iewed knew the current accumulated collective dose for his             i
Dose Management
                      department.       Mr.nagere generally understood where the ALARA
The inspectors interviewed several departmental managers, reviewed
l                     requirements originated and what utility docun.ents described the
managsment tools used to. track. collective dose, and reviewed the
                      ALARA program objectives.
,
                                                                                                    ,
departmental collective dose perfonnance against the dose allotnent.
                      The inspectors also reviewed the licensee's department collective
!
                      dose performance against the various departnental goals. Each
Theinspectorsdiscussedwithlicenseemantgersandsupervisorsthe
                      department except the Operations Department had exceeded its fiscal
:
                      year (FY)1990dosegoal. The data are sunenarized below:
utility s ALARA program, including their knowledge of ALARA goals,
                                                                                                    ,
*
                                                                                                    ?
concepts, policies - and procedures
                                                                                                    :
individual responsibilities,
                                                                                                    !
1
                                                                                                    !
personnel exposure, and dose limits.
                                                                                                    :
Additionally, the discussions-
                                                                                                    t
included managers' cons.unication with co-workers and supervisors,
                                                                                                    P
.
                                                                      ,,a
participation in the ALARA suggestion program, the n.anagers'
                                                                          -
perspective on how to iniprove the ALARA program, what events have
                                                                            -  ,       -n. , -
- !
caused increased personnel dose, and what events or conditions have
!
helped reduce personnel radiation doses.
The: inspectors interviewed
;
n.anagers or supervisors from the following departments: maintenance,
.
*
nuclear engineering, operations, technical support, and steam
l
'
generator maintenance.
Each individual interviewed was generally
familiar with' the basic ALARA concepts. - Additionally. -individuals
,
interviewed knew that they had a- basic responsibility for-
implementing the utility's ALARA program by performing tasks in a
manner- consistent with the utility's ALARA- policy.
Although it
appeared that u.anagers were aware of departmental dose goals, only
i
one of the n.anagers interviewed knew his numerical departnental
'
collective dose goal.
'Similarly, only one of the managers
intin!iewed knew the current accumulated collective dose for his
i
department.
Mr.nagere generally understood where the ALARA
l
requirements originated and what utility docun.ents described the
ALARA program objectives.
,
The inspectors also reviewed the licensee's department collective
dose performance against the various departnental goals.
Each
department except the Operations Department had exceeded its fiscal
year (FY)1990dosegoal. The data are sunenarized below:
,
?
:
!
!
:
t
P
. . ~ ,
n . - . - . - +
-,
a
, . . ,
, . , . , ,
,
v
,,a
-
,
-n.
,
-
-


        -.     ~                     .-   .                       . - . .           -
-.
                                                                                                          'I
~
  . ...   . .
.-
                                                                                                              I
.
                                                  4                                                           l
. - .
                                                                                                              :
-
.
'I
. . .
.
.
.
4
l
l
                  Departrent                             FY 90 Goal           FY 90 Actual
Departrent
                  -
FY 90 Goal
                                                        (person-rem)         (person-rem)                   !
FY 90 Actual
                                                                                                              !
(person-rem)
                  Maintenance                                 209                       269                 L
(person-rem)
                  Modifications                               200                       418                   .
!
                  Technical Support Services                   11                       13                 i
-
!
Maintenance
209
269
L
Modifications
200
418
.
Technical Support Services
11
13
i
Radiological Control
100 ,
111
:
'
'
                  Radiological Control                        100 ,                    111                  :
Quality Assurance
                  Quality Assurance                           27                       38                 !
27
                  Operations                                   30                       23                 !
38
!                 Nuclear Engineering                         30                       57                 l
!
                                                              65                       139                 i
Operations
                  Steam Generator
30
                  Other                                        18                         7
23
                  T6 tat                                     UU                 TOR                       ;
!
                                                                                                            i
!
                  As will be discussed in Paragraph 2.d. of this report, the higher                       j
Nuclear Engineering
                  than projected collective dose was due to the work scope of the                         l
30
                  outage including RTD bypass renioval UHI removal, steam generato.                         ,
57
                  nozzle dem installation, and reactor coolant pump modifications.                         *
l
                  The inspectors also reviewed the licensee's pethods for tracking
Steam Generator
                  collective dose for effective. dose managenient. It was observed that                   ;
65
                  the licensee had a good program for accessing the data base:to track                     .
139
L                 individual dose, departmental collective dose, and job collective                         i
i
Other
18
7
T6 tat
UU
TOR
;
i
As will be discussed in Paragraph 2.d. of this report, the higher
j
than projected collective dose was due to the work scope of the
l
outage including RTD bypass renioval
UHI removal, steam generato.
,
nozzle dem installation, and reactor coolant pump modifications.
*
The inspectors also reviewed the licensee's pethods for tracking
collective dose for effective. dose managenient.
It was observed that
;
the licensee had a good program for accessing the data base:to track
.
L
individual dose, departmental collective dose, and job collective
i
dose. These data were easily displayed numerically or in the form of
!
'
'
                  dose. These data were easily displayed numerically or in the form of                      !
charts and graphs that could easily be used by. the departniental
                  charts and graphs that could easily be used by. the departniental                       l
l
                  manager to track, trend, and manage their dose allotment.- Through
,                                                                                                          -
L
L
i                 discussions with the licensee, it was noted that-during the. last
manager to track, trend, and manage their dose allotment.- Through
,
-
i
discussions with the licensee, it was noted that-during the. last
l
l
                  outage only the Maintenance Departn.ent received collective dose trend                   I
outage only the Maintenance Departn.ent received collective dose trend
i                 charts.     Although the information was available, the other                         1
I
                                                                                                            i
i
                  departnients had not requested nor had . they been provided the
charts.
                  collective dose summary information in order to aid in n.anaging their                   <
Although the information was available, the other
                  departmental dose allotment.
1
              d.   Collective Dose Goal
i
                                                                                                            !
departnients had not requested nor had . they been provided the
                  The inspectors reviewed the licensee's procedures and methods used to
collective dose summary information in order to aid in n.anaging their
                  establish the collective annual dose goal. Based on a review of                         ;
<
                    data, procedures, and interviews with managers and ALARA group                         ,
departmental dose allotment.
                    personnel, the inspectors noted that the site annual collective dose
d.
                    goalwasbasedonworkscopefortheyearandwasinitially(developed
Collective Dose Goal
                    by the ALARA Cemittee. The Radiological Controls Group Radcon)-                         i
!
                    forwarded to each department head the anticipated work scope for the'                   ,
The inspectors reviewed the licensee's procedures and methods used to
l                 year and dose rates expected. The department section heads provided
establish the collective annual dose goal.
!                   the number of man-heurs and developed their FY dose estin.ates for
Based on a review of
l                   subn.ittal to the ALARA Conmiittee for approval. After a review by the
;
                  ALARA Conuittee, the annual collective dose goal' approval chain was
data, procedures, and interviews with managers and ALARA group
                    the Plant Manager, Site Director, Vice President Nuclear Power
,
                    Production, and Vice President Nuclear Power..
personnel, the inspectors noted that the site annual collective dose
                                                                                                            i
goalwasbasedonworkscopefortheyearandwasinitially(developed
                                                                                                            i
by the ALARA Cemittee.
                                                                                                            !
The Radiological Controls Group Radcon)-
                                                                                                            ,
i
                                - - ,           ,   , ,                   ,     , _ _
forwarded to each department head the anticipated work scope for the'
                                                                                            p. . , , , , ,
,
l
year and dose rates expected.
The department section heads provided
!
the number of man-heurs and developed their FY dose estin.ates for
l
subn.ittal to the ALARA Conmiittee for approval. After a review by the
ALARA Conuittee, the annual collective dose goal' approval chain was
the Plant Manager, Site Director, Vice President Nuclear Power
Production, and Vice President Nuclear Power..
i
i
!
,
- * -
~s
- - ,
,
, ,
,
, _ _
p.
. , , , , ,


                  _ _             _   _                     _ .   __     .-             _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
_ _
  '
_
        .. . .
_
l    , ,
_ .
                                                      5
__
.-
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
'
l
.. .
.
,
,
5
L
L
I
I
'                    In mid-1989, Radeon collected department inputs for FY 1990 and
In mid-1989, Radeon collected department inputs for FY 1990 and
                      submitted 912 persen-rem to the ALARA Comittee for approval. On
'
                      October 13,1pCS, the ALARA Comittee sut" ited the estimate to the
submitted 912 persen-rem to the ALARA Comittee for approval.
l                     Site Director. The initial estimate was disapproved, and the goal was-
On
l                     established at CBS person-rem. The goal of 685 person-rem was
October 13,1pCS, the ALARA Comittee sut" ited the estimate to the
                      exceeded in' April of 1990 due to 6dditional work sco>e, .an escalated
l
                      schedule, and weaknesses that are. discussed in deta'l later in the
Site Director. The initial estimate was disapproved, and the goal was-
l
established at CBS person-rem.
The goal of 685 person-rem was
exceeded in' April of 1990 due to 6dditional work sco>e, .an escalated
schedule, and weaknesses that are. discussed in deta'l later in the
,
,
i
i
                      inspection report.'                                       ,
inspection report.'
                      In June 1990, the superintendent of Radcon submitted a change request
,
                      for a new annual ~ collective dose goal of 1,365 person-rem. The
In June 1990, the superintendent of Radcon submitted a change request
                      justification for the amended goal was that work scope changes had
for a new annual ~ collective dose goal of 1,365 person-rem.
                      not been icehtified during the initial goal developnent, and a shift
The
                      of 20 days of the Unit 2, Cycle 4 outage into FY 1990 (20 days of
justification for the amended goal was that work scope changes had
                      U2, C4 outage are expected to result;in as much as 350 person-rem).
not been icehtified during the initial goal developnent, and a shift
                      In addition. -durin0 this FY 1990 goal development process, site.
of 20 days of the Unit 2, Cycle 4 outage into FY 1990 (20 days of
                      rnanagement reduced the site goal to below what was in the goal basis.
U2, C4 outage are expected to result;in as much as 350 person-rem).
                      The justificetion for the change was submitted on June 15, 1990, from
In addition. -durin0 this FY 1990 goal development process, site.
                      the V. P. Nuclear Power Production to the Senior V. P. Nuclear Power
rnanagement reduced the site goal to below what was in the goal basis.
                      and was rejected.
The justificetion for the change was submitted on June 15, 1990, from
                      During this inspection, the Radcon ALARA group was in the process of
the V. P. Nuclear Power Production to the Senior V. P. Nuclear Power
,                    preparing a justification' for another change to . establish the
and was rejected.
During this inspection, the Radcon ALARA group was in the process of
preparing a justification' for another change to . establish the
,
collective dose-goal at 1,035 >erson-rem., The' inspectors noted that
'
'
                      collective dose-goal at 1,035 >erson-rem., The' inspectors noted that
currently the site collective cose was at 1,075 person-rem, and three
                      currently the site collective cose was at 1,075 person-rem, and three
months remained in FY 1990.
                      months remained in FY 1990.
After interviews with key department managers and plant managenent'
                      After interviews with key department managers and plant managenent'
(Paragraph 2.c), the inspectors noted that< the parties associated
                      (Paragraph 2.c), the inspectors noted that< the parties associated
with establishing an annual site collective dose goal did not appear
                      with establishing an annual site collective dose goal did not appear
+o be comunicating well; that the current effort underway, if
                      +o be comunicating well; that the current effort underway, if
approved, would not result in a realistic goal since it had been
                      approved, would not result in a realistic goal since it had been
surpassed;-and that the licensee was not effectively using the goal
                      surpassed;-and that the licensee was not effectively using the goal
process as one of the managenent tools to control collective dose at
                      process as one of the managenent tools to control collective dose at
l
l                     the station. The inspectors noted the recomendations in Regulatory
the station.
l                    Guide 8.8 that meeting appropriate ALARA goals and objectives
The inspectors noted the recomendations in Regulatory
                      provided measures of ALARA program effectiveness.
l
l
l                     During the exit meeting, the Plant Manager stated that a realistic
Guide 8.8 that meeting appropriate ALARA goals and objectives
l
provided measures of ALARA program effectiveness.
l
During the exit meeting, the Plant Manager stated that a realistic
'
'
                      collective dose goal would be developed for the remainder of FY 1990,
collective dose goal would be developed for the remainder of FY 1990,
                c.   ALARA Reviews
c.
                      Licensee procedure requires that. pre-job ALARA reviews be performed
ALARA Reviews
                      for. all jobs in which the collective dose was expected to exceed
Licensee procedure requires that. pre-job ALARA reviews be performed
                      I rerson-rem or where radiation dose rates exceed I rem per hour.
for. all jobs in which the collective dose was expected to exceed
                      /11so, for jobs expected to result in collective dose greater than
I rerson-rem or where radiation dose rates exceed I rem per hour.
                      5 person-ren, an ALARA Comittee review was required. The inspectors
/11so, for jobs expected to result in collective dose greater than
                      selectively evaluated prc-job ALARA reviews performed in 1990.s and
5 person-ren, an ALARA Comittee review was required. The inspectors
                      verified that appropriate dose reduction techniques and lessons
selectively evaluated prc-job ALARA reviews performed in 1990.s and
                      ..-         -           .     .- .     -                     .                                   - w
verified that appropriate dose reduction techniques and lessons
..-
..-
-
.
.- .
-
.
-
w


                                                                                                        .
.
                                                                                                      !
!
  ,
' ** , . *
    ' ** , . *
,
                                                                                                      i
i
                                                    6
6
                                                                                                        :
:
                                                                                                        !
!
                                                                                                        !
!
                                                                                                        '
'
                  learned from previous similar work were considered in the reviews. To
learned from previous similar work were considered in the reviews. To
                  aid workers in reducing dose, dose reduction techniques and                           ,
aid workers in reducing dose, dose reduction techniques and
                                                                                                        '
                                                                  were listed on an addendum
,
,
                  requirements
were listed on an addendum
                  to the applicable  developed
requirements developed by the ALARA group (RKP) and'went to the field
                                        radiationby  the permit
[
                                                  work  ALARA group (RKP) and'went to the field     [
'
i                 as'sp cial instructions with the RWP.                                               ;
to the applicable radiation work permit
                  The inspectors requested post-job ALARA reviews for 12 of the U1,
,
                  C4 outage high dose jobs.- Radeon was still working with other                       !
i
                  department personnel on the post-job debriefings and provided six                     *
as'sp cial instructions with the RWP.
                  completed post-job reviews. Based on an evaluation of the post-job-
;
                  reviews and discussions with plant personnel, the inspectors                         -
The inspectors requested post-job ALARA reviews for 12 of the U1,
                  determined that problems occurred during the outage that resulted in
C4 outage high dose jobs.-
                  higher than anticipated dose to workers. The following are the more                 ;
Radeon was still working with other
                  significant problems: -(a) non-critical path work was performed in                   ,
!
                  containment when the reactor coolant- system (RCS) water level was .               ;
department personnel on the post-job debriefings and provided six
                  drained for RTD bypass removal; the loss of water shielding resulted.
*
                  in an increase in radiation levels of 200-300 percent. . Dose cost was
completed post-job reviews.
                  46 person-rem; (b) minimal amounts of temporary lead shielding were
Based on an evaluation of the post-job-
                  used due to unavailability, delays, schedule, and seismic restraints;
reviews and discussions with plant personnel, the inspectors
                  ( 'e cost was 15 person-rem;-(c) poorly traintd and or inexperienced
-
                  .    > ;ers; dose cost 11 person-rem; (d) overcrowding,in work areas .and
determined that problems occurred during the outage that resulted in
                        '
higher than anticipated dose to workers. The following are the more
                      -
;
                          large use of respirators due to. high levels of. loose surface
significant problems: -(a) non-critical path work was performed in
L                    .ntamination; dose cost unquantifiable. The_insSectors noted that
,
containment when the reactor coolant- system (RCS) water level was .
;
drained for RTD bypass removal; the loss of water shielding resulted.
in an increase in radiation levels of 200-300 percent. . Dose cost was
46 person-rem; (b) minimal amounts of temporary lead shielding were
used due to unavailability, delays, schedule, and seismic restraints;
( 'e cost was 15 person-rem;-(c) poorly traintd and or inexperienced
> ;ers; dose cost 11 person-rem; (d) overcrowding,in work areas .and
'
.
large use of respirators due to. high levels of. loose surface
-
.ntamination; dose cost unquantifiable.
The_insSectors noted that
L
l
l
                  the licensee had purchased additional temporary s11elding and other.
the licensee had purchased additional temporary s11elding and other.
                  problems identified in the post-job debriefings were placed.on an
problems identified in the post-job debriefings were placed.on an
                  action item list to be resolved prior to the upcoming Unit 2 outage.               !
action item list to be resolved prior to the upcoming Unit 2 outage.
                                                                                                      '
!
                  The inspectors reviewed dose estimates for 55 jobs that included RWP
'
                  hours and dose rate information. The following sunnary shows -the                   .
The inspectors reviewed dose estimates for 55 jobs that included RWP
                  estimated versus actual performance:                                               1
hours and dose rate information.
The following sunnary shows -the
.
estimated versus actual performance:
1
i
i
i
                                                                                                      i
Percent of.
                                                                                Percent of.
Estimated
                                                Estimated       Actual         Estimate
Actual
                  Number of people                   3,603       7,460               207           -
Estimate
                  RWP hours                       103,238     11%917               1111
Number of people
                  Whole Body Dose                 694.366     893,018               129
3,603
                    (person-millirem)
7,460
                  Whole Body Dose Rate                 6.72       7.27               116           5
207
                    (person-millirem /hr)
-
                  The inspectors concluded that the process for estin.ating doses for
RWP hours
                  jobs was good for the majority of jobs and that the post-job reviews
103,238
                  were identifying significant problems, that when corrected, would                   ,
11%917
                  improve dose control.                                                               '
1111
              f. ALARA Consnittee                                                                   !
Whole Body Dose
                  The inspectors reviewed and discussed - with cognizant licensee
694.366
                  representatives the current: ALARA Connittee organization and its
893,018
                  functional responsibilities.           Details regarding the Connittee
129
                                                                                                      ,
(person-millirem)
                                                                                                      I
Whole Body Dose Rate
                                                                                                      .
6.72
                                                                                                    ' ,
7.27
                                      _                                                     , - .
116
5
(person-millirem /hr)
The inspectors concluded that the process for estin.ating doses for
jobs was good for the majority of jobs and that the post-job reviews
were identifying significant problems, that when corrected, would
,
improve dose control.
'
f.
ALARA Consnittee
!
The inspectors reviewed and discussed - with cognizant licensee
representatives the current: ALARA Connittee organization and its
functional responsibilities.
Details regarding the Connittee
,
I
.
' ,
. - .
.
_
.
.
._
.
, - .


                                              .__       _.   ..-- .-.     . _ _ _ _ _ _ . _ _ _ - - _ _ -
.__
                                                                                                            :
_.
                                                                                                            ,
..--
    .
.-.
        - ' a ~
. _ _ _ _ _ _ .
      .                                                                                                     ,
_ _ _ - - _ _ -
                                                                                                          k
:
                                                  7-                                                       ;
,
                                                                                                            ,
- ' a
  1
~
                    organization and functions were_ outlined. in SQA-209, " Site ALARA
.
                    Comittee," Revision 1 dated April 9,1990. The Comittee consisted
.
                    of at least one representative each from radiological controls,
,
k
7-
;
,
1
organization and functions were_ outlined. in SQA-209, " Site ALARA
Comittee," Revision 1 dated April 9,1990. The Comittee consisted
,
,
l
l
of at least one representative each from radiological controls,
maintenance, operations, modifications, site OA, and nuclear
'
'
                    maintenance, operations, modifications, site OA, and nuclear
engineering whose attendance was required for a quorum.
                    engineering whose attendance was required for a quorum.
Representatives from:the corporate. office were normally invited. .
                    Representatives from:the corporate. office were normally invited. .
:The Connittee reviewed ercas of potential exposure in the plant:to-
                  :The Connittee reviewed ercas of potential exposure in the plant:to-
determine mechanisms to reduce doses and to review dose saving
                    determine mechanisms to reduce doses and to review dose saving
suggestions for viability.
                    suggestions for viability. The Chairman of the Comittee was
The Chairman of the Comittee was
                    nonna11y the= Maintenance Penager; however, this responsibility ~ was
nonna11y the= Maintenance Penager; however, this responsibility ~ was
                                                          .
.
                    recently being shared with the Plant Manager.
recently being shared with the Plant Manager.
                    By procedure, the ALARA Comittee was required to meet quarterly;.
By procedure, the ALARA Comittee was required to meet quarterly;.
                    however,- during the outage period the Comittee would reet nore
however,- during the outage period the Comittee would reet nore
                  . frequently, typically. weekly to tronthly. Af ter reviewing Comittee
. frequently, typically. weekly to tronthly.
                    meetino . attendance records for 1990, the inspectors noted two
Af ter reviewing Comittee
                    cancelled neetings due to lack of attendance. The inspectors
meetino . attendance records for 1990, the inspectors noted two
                    reviewed the topics discussed during the ALARA Comf , tee neetings
cancelled neetings due to lack of attendance.
                    which mainly consisted of review and approval of high dose jobs and a
The inspectors
                    review of ALARA suggestions. Recently, the threshol . for requiring'
reviewed the topics discussed during the ALARA Comf , tee neetings
                    the site ALARA Comittee to review and. approve work Das reduced from-
which mainly consisted of review and approval of high dose jobs and a
                    10 to 5 person-rem. Additionally, the site ALARA Comittee was
review of ALARA suggestions.
                    recently given the responsibility to review containment power entries
Recently, the threshol . for requiring'
                    and establish designated containment power entry days for scheduling
the site ALARA Comittee to review and. approve work Das reduced from-
                    and coordinating work. Also, the site ALARA Comittee was. tasked
10 to 5 person-rem.
                    with performing quarterly reviews of departmental and station dose
Additionally, the site ALARA Comittee was
                    goal performance and making recomendations and : adjustments .when
recently given the responsibility to review containment power entries
:                   necessary.
and establish designated containment power entry days for scheduling
                    The licensee's ALARA suggestion program was effective, with 'several
and coordinating work.
                    dose savings suggestions implenented. In 1989,.33 ALARA suggestions
Also, the site ALARA Comittee was. tasked
                    were submitted, and eight were being implemented to dete. In 1990,
with performing quarterly reviews of departmental and station dose
                    14 suggestions were submitted, and two were being implerented. The
goal performance and making recomendations and : adjustments .when
                    licensee's incentive program has resulted in individuals submitting
:
                    viable suggestions. An liLARA subcomittee prereviews_~ all ALARA
necessary.
                    suggestions and submits the best ones to the : ALARA Comittee for
The licensee's ALARA suggestion program was effective, with 'several
                    consideration,
dose savings suggestions implenented.
                g. Dose Reduction Initiative
In 1989,.33 ALARA suggestions
                    The inspectors discussed with licensee representatives. from both the
were submitted, and eight were being implemented to dete.
y                   station and the corporate office, several dose reduction initiatives
In 1990,
I                   which have been implemented.     It was noted that the licensee had
14 suggestions were submitted, and two were being implerented.
                    implemented an induced crudburst control and cleanup program at the
The
                    station.   The program allowed the. licensee to control when a
licensee's incentive program has resulted in individuals submitting
                    crudburst would occur by adding hydrogen peroxide to' the primary
viable suggestions.
                    coolant system and removing the activated crud using the ion exchange
An liLARA subcomittee prereviews_~ all ALARA
                    purification system. This-program helped the licensee lower the dose
suggestions and submits the best ones to the : ALARA Comittee for
                    rates and contamination levels in the primary system and irtprove-
consideration,
                    water clerity for refueling operations. During the U1, C4 outage,
g.
                    hydrogen peroxide was added to the primary coolant with the system
Dose Reduction Initiative
                                                                                                          I
The inspectors discussed with licensee representatives. from both the
                                                                                                          !
y
                                                                                                          l
station and the corporate office, several dose reduction initiatives
                                                                                                          j
I
which have been implemented.
It was noted that the licensee had
implemented an induced crudburst control and cleanup program at the
station.
The program allowed the. licensee to control when a
crudburst would occur by adding hydrogen peroxide to' the primary
coolant system and removing the activated crud using the ion exchange
purification system. This-program helped the licensee lower the dose
rates and contamination levels in the primary system and irtprove-
water clerity for refueling operations.
During the U1, C4 outage,
hydrogen peroxide was added to the primary coolant with the system
I
!
lj


                                                          -     ..       -             .-             .. .
-
                                                                                                              l
..
            *
-
  ..
.-
    /* *
..
                                                                                                                ,
.
                                                        8                                                      i
l
l
..
/*
*
*
,
8
i
l
l
l
!
con.pletely full which maximized the Co-60 removal due to the
;
increased letdown ficw rate and circulation 'in .the' loops.
The.
!
licensee had also undertaken several other dose reduction projects.
!
The following dose reduction initiatives were either completed or
j
scheduled:
;
Reactor head instrument port conoseal c1kmp replacement
!
*
;
RTD menifold removal (U1 con.pleted; U2 scheduled for FF4),duled
*
Upper head injection system removal (U1 completed; U2 sche
'
.
,
forRF4).
i
!
!
                    con.pletely full which maximized the Co-60 removal due to the                              ;
Laser videodisc and photographic display system (U1' completed;
                    increased letdown ficw rate and circulation 'in .the' loops.           The.               !
1
                    licensee had also undertaken several other dose reduction projects.                        !
*
                    The following dose reduction initiatives were either completed or                        j
U2 scheduled for RF4)
                    scheduled:
.
Reactor coolant pun.p cartridge-type seal nodification (two RCPs-
'
*
per unit remaining for modification)
!
Modification on steam generator nozzle dam.s to reduce time for
!
*
installation in steam generator channel head (Unit I completed;
j
Unit 2scheduledforRF4)
Additionally, the inspectors' noted that.the licensee was considerin
f
the acquisition of a permanent reactor-head shield to reduce genera
,
!
area dose rates during fuel movement.
Acquisition of a head shield
'
was slated for the Fall of 1991.
The inspectors also discussed with licensee representatives the use
of temporary shielding during the U1', C4 outage.
It was determined
that several scheduling constraints and seismic concerns precluded
shielding crews from installing some shielding near the RTD manifolds
'
which resulted in- higher doses for- crews performing S/G sludge-
;
;
                    *      Reactor head instrument port conoseal c1kmp replacement                            !
lancing operations.
                    *                                                                                          ;
Another contributing problem was a lack of lead
                    '      RTD
                            Uppermenifold  removal
                                  head injection      (U1 con.pleted;
                                                  system    removal (U1U2  scheduled
                                                                        completed; U2for
                                                                                        scheFF4),duled          .
,
,
shielding.
The inspectors discussed with representatives from the.
'
corporate office and the station the use of standard load tables for
adding temporary shielding to piping and various components to aid in
.
reducing the amount of time for approval and installation of
1
temporary shielding during outage critical path periods,
h.
Source Term Reduction Initiatives
r
The inspectors discussed with licensee representatives from the
'
station and corporate office methodsi for reducing out-of-core
radiation sources ' which would offer -the greatest potential for
'
continued reductions in occupational radiation dose.
The
techniques
discussed
included
cobalt . source
reduction.
~
'
preconditioning of out-of-core surfaces, control of crud transport,.
and chemical decontamination.
Earlier this year, the licensee's corporate office had identified the
need-to formulate a concerted source term reduction program.for TVA.
!
!
                            forRF4).                                                                          i
The corporate chemistry department initiated a plan to formulate
                    *      Laser videodisc and photographic display system (U1' completed;                  1
connittees to address source term reduction initiatives such as:
                            U2 scheduled for RF4)                                                              .
stellite control, system preconditioning, chemical decontamination,
                                                                                                                '
i
                    *
and elevated reactor coolant pH.
                            Reactor coolant pun.p cartridge-type seal nodification (two RCPs-
The licensee's_ Watts Bar= facility
                            per unit remaining for modification)                                              !
j
                    *
;
                            Modification on steam generator nozzle dam.s to reduce time for                    !
!
                            installation in steam generator channel head (Unit I completed;                    j
.,
                            Unit 2scheduledforRF4)
.-
                    Additionally, the inspectors' noted that.the licensee was considerin                      f
-~ .
                    the acquisition of a permanent reactor-head shield to reduce genera                      ,
--
!                    area dose rates during fuel movement. Acquisition of a head shield                        '
-
                    was slated for the Fall of 1991.
-.
                    The inspectors also discussed with licensee representatives the use
-
                    of temporary shielding during the U1', C4 outage. It was determined
~
                    that several scheduling constraints and seismic concerns precluded
                    shielding crews from installing some shielding near the RTD manifolds                    '
                    which resulted in- higher doses for- crews performing S/G sludge-                        ;
                      lancing operations. Another contributing problem was a lack of lead                      ,
                    shielding. The inspectors discussed with representatives from the.                        '
                    corporate office and the station the use of standard load tables for
                    adding temporary shielding to piping and various components to aid in                    .
                    reducing the amount of time for approval and installation of                              1
                    temporary shielding during outage critical path periods,
              h.    Source Term Reduction Initiatives                                                        r
                    The inspectors discussed with licensee representatives from the                          '
                    station and corporate office methodsi for reducing out-of-core
                    radiation sources ' which would offer -the greatest potential for                        '
                    continued reductions in occupational radiation dose.                The
                                                                                                              '
                    techniques      discussed  included    cobalt . source    reduction.                    ~
                    preconditioning of out-of-core surfaces, control of crud transport,.
                    and chemical decontamination.
                    Earlier this year, the licensee's corporate office had identified the
                      need-to formulate a concerted source term reduction program.for TVA.                    !
                    The corporate chemistry department initiated a plan to formulate
                      connittees to address source term reduction initiatives such as:
                      stellite control, system preconditioning, chemical decontamination,                     i
                      and elevated reactor coolant pH.       The licensee's_ Watts Bar= facility
                                                                                                            j
                                                                                                              ;
                                                                                                              !
          .,     .-                 -~ .         --         -             -.                       ~


  F
F
  !
!
            .
,.
    . ,.   .
.
                                                  9
.
                    had comitted the resources to help develop and implement the source
.
9
had comitted the resources to help develop and implement the source
term reduction initiatives.
;
;
                    term reduction initiatives.
With site-specific cdjustments, the licensee's corporate office
                    With site-specific cdjustments, the licensee's corporate office
planned to apply the source term reduction initiatives at the other
                    planned to apply the source term reduction initiatives at the other
TVA facilities.
                    TVA facilities. As of this inspection, the licensee's source term
As of this inspection, the licensee's source term
                    reduction plan was still in the developmental stages; consequently a
reduction plan was still in the developmental stages; consequently a
                    site-specific plan for the Sequoyah facility had not been addressed..
site-specific plan for the Sequoyah facility had not been addressed..
                    HowcVer, as noted in Paragraph 2.g, the licensee's Sequoyah facility
HowcVer, as noted in Paragraph 2.g, the licensee's Sequoyah facility
                    has taken the initiative to reduce future occupational collective
has taken the initiative to reduce future occupational collective
                    rediation dose by component removal, such as the RTD bypass manifolds
rediation dose by component removal, such as the RTD bypass manifolds
                  'and the upper head injection system on Unit-1, and hydrogen peroxide-
'and the upper head injection system on Unit-1, and hydrogen peroxide-
                    cddition at shutdown. The inspectors noted that there was no
cddition at shutdown.
                    schedule for application of the Watts Bar initiatives at the Sequoyah
The inspectors noted that there was no
                    facility.
schedule for application of the Watts Bar initiatives at the Sequoyah
                1. Contaminathn Controls
facility.
                    The inspectors reviewed the licensee's program to control
1.
                    contaniination at the source. The inspectors noted the licensee had
Contaminathn Controls
                    exceeded the goal of 240 personnel contamination events (PCEs) by 12
The inspectors reviewed the licensee's program to control
                    at the end of June. Licensee personnel stated that, although six
contaniination at the source.
                    weeks of the Unit.2 outage is scheduled for this FY, they felt that
The inspectors noted the licensee had
                    PCEs will be lower than the pre.vious two years of 409 in 1988 . and
exceeded the goal of 240 personnel contamination events (PCEs) by 12
                    435 in 1989.
at the end of June.
                    During tours of the radiologically controlled area (RCA)- of: the
Licensee personnel stated that, although six
                    plant, the inspectors observed that large areas were being controlled
weeks of the Unit.2 outage is scheduled for this FY, they felt that
                    as contaminated after the outage.- Based on licensee data, the total
PCEs will be lower than the pre.vious two years of 409 in 1988 . and
                    RCA was 228,940 square feet (ftr) of which 8,200 fte of reclaimable
435 in 1989.
                    and 17,200 ft2 of non-reclaimable area existed prior to the U1, C4 -
During tours of the radiologically controlled area (RCA)- of: the
                    outage.     During the inspection the - licensee was maintaining
plant, the inspectors observed that large areas were being controlled
                    13,612 fte as reclainable and 17,000 fte as non-reclaimable
as contaminated after the outage.- Based on licensee data, the total
                    contaminated area for a total of 30, 612 ftr. : The -inspectors
RCA was 228,940 square feet (ftr) of which 8,200 fte of reclaimable
                    determined that a significant cmount of non-reclaimable area at
and 17,200 ft2 of non-reclaimable area existed prior to the U1, C4 -
                    Sequoyah was normally considered reclaimable at other utilities. The
outage.
                    inspectors interview d licensee personnel and learned that the higher
During the inspection the - licensee was maintaining
                    priorities. may have prevented engineering approval to- place pump
13,612 fte as reclainable and 17,000 fte as non-reclaimable
                    shaft guards on pumps in radioactive systems. Such guards would help
contaminated area for a total of 30, 612 ftr. : The -inspectors
                    contain contan.ination. Consequently pun.ps with radioactive leaks
determined that a significant cmount of non-reclaimable area at
                    resulted in whole rooms being contaniinated rather than just the pump
Sequoyah was normally considered reclaimable at other utilities. The
                    bed.
inspectors interview d licensee personnel and learned that the higher
                    Licensee personnel stated that at the end of the outage the intent
priorities. may have prevented engineering approval to- place pump
                    was to reclaim areas that became contaminated during the outage, but
shaft guards on pumps in radioactive systems.
                    resources to acconiplish - this were eliminated. Also, licensee
Such guards would help
                    representatives stated that durin
contain contan.ination.
                    resources (training and staffing) were
Consequently pun.ps with radioactive leaks
                                                        g both   normal
resulted in whole rooms being contaniinated rather than just the pump
                                                              limited    and outage to
bed.
                                                                      in comparison periods
Licensee personnel stated that at the end of the outage the intent
                                                                                        the
was to reclaim areas that became contaminated during the outage, but
                    task. The inspectors discussed this issue with plant management and
resources to acconiplish - this were eliminated.
                    were- inforned that the engineering problem regarding approval for
Also, licensee
                    containnents would be given inmediate attention 'and that for . Unit 2
representatives stated that durin
      - .   .           .             .-             -                                     >
resources (training and staffing) g both normal and outage periods
were limited in comparison to the
task.
The inspectors discussed this issue with plant management and
were- inforned that the engineering problem regarding approval for
containnents would be given inmediate attention 'and that for . Unit 2
-
.
.
.
.-
-
>


                                                                        . - -   -.         -   - .   -   . ..
. - -
                                                                                                                6
-.
            -   .
-
        .
- .
          .
-
              .               .                                                                                 ;
.
                                                              10                                                 [
..
                                                                                                                f
6
                                                                                                                !
;
                      outage personnel would be inade available for' decontamination work.                     !
-
                      Licensee managenent stated that it was their goal to reclaim
.
                      contandnated areas during the titre between obtages 50 that the total                     l
.
.
.
.
10
[
f
!
outage personnel would be inade available for' decontamination work.
!
Licensee managenent stated that it was their goal to reclaim
contandnated areas during the titre between obtages 50 that the total
l
l
                      contendnated area would be the s6ne going into the next outage as                         ;
contendnated area would be the s6ne going into the next outage as
;
l
there was going into the past outage.
,,
'
'
                      there was going into the past outage.                                                     ,,
j.
                  j.  ALARA Training                                                                             ;
ALARA Training
                      The inspectors
;
                      reviewed  generaltoured
The inspectors toured the Plant Op(erations Training Center and
                                            erployee    the training
~
                                                              Plant Op(erations
reviewed general erployee training GET) lesson plans.
                                                                      GET) lessonTraining
1he lesson
                                                                                    plans. Center    and
                                                                                              1he lesson
                                                                                                        ~
                                                                                                                ,
                      plans appeared to be well developed as were the instructor teaching                      ;
                      aids. Based on interviews with instructors and plant. personnel, the                      i
                      inspectors learned that, other than GET, plant personnel did not'
                      receive additicr.61 classroom training in ALARA concepts, techniques,
,
,
      '
plans appeared to be well developed as were the instructor teaching
                      or practical factors. The licensee, in the past year, had eliminated                     ,
;
aids.
Based on interviews with instructors and plant. personnel, the
i
inspectors learned that, other than GET, plant personnel did not'
receive additicr.61 classroom training in ALARA concepts, techniques,
or practical factors. The licensee, in the past year, had eliminated
'
'
                      from the station's curriculum ALARA Awareness training and' Advanced                     '
,
                      Radiation Worker training. - In addition. the number of instructors-                     ;
,
                      providing the training had been cut back. ALARA Committee neeting
from the station's curriculum ALARA Awareness training and' Advanced
                                                                      -
'
                                                                                                                -
'
                      minutes 90-18. June 15,1990, recorded that employee exit interviews
Radiation Worker training. - In addition. the number of instructors-
                      revealed a number of concerns relating to dose reduction. The ALARA                       :
;
                      Comittee, in seeking a resolution to this item, had requested that
providing the training had been cut back.
                      GET be reviewed for ALARA content.               The inspectors ' concluded that         ;
ALARA Committee neeting
                      although training tret the requirements of -10 CFR 19.12, there had                       ,
-
                      been reductions in that area of training that had been intended to                       i
-
                      result in better worker dose control.
minutes 90-18. June 15,1990, recorded that employee exit interviews
                  k.   Audit Program                                                                           1
revealed a number of concerns relating to dose reduction. The ALARA
                      The inspectors reviewed audit reports perforrned by the fluclear                         !
:
                      Quality Audit and Evaluation- (NOA&E) group and surveillances                             ,
Comittee, in seeking a resolution to this item, had requested that
                      performed by Quality Assurance Organizations for radiological
GET be reviewed for ALARA content.
                                                      ~
The inspectors ' concluded that
                                                                                                                *
;
                      controls. In general the eudits and surveillances were indepth and
although training tret the requirements of -10 CFR 19.12, there had
                      substantive.   NQA&E audit Report ho. SQA 89002, dated January 9,                       ,'
,
                      1990, focused on ALARA and radiological effluent monitoring.
been reductions in that area of training that had been intended to
                      Overall, the audit found that the ALARA program was adequate- and-                       ;
i
                      cffective, and cited a number of strengths. However, a condition                         ;
result in better worker dose control.
                      adverse. to quality was found regarding the failure to implement an                       .
k.
                      ALARA standard.       In discussions with' ALARA group- personnel, the                   :
Audit Program
l                      inspectors learned that the need for an ALARA standard was identified                    r
1
                      by the corporate office and that Nuclear Engineering (NE) had three:
The inspectors reviewed audit reports perforrned by the fluclear
                      design guides for use for ALARA reviews. These design guides had not
!
                      been formalized into the program,- DesignChanceNotices(DCNs)were
Quality Audit and Evaluation- (NOA&E) group and surveillances
~
,
performed by Quality Assurance Organizations for radiological
*
controls.
In general the eudits and surveillances were indepth and
substantive.
NQA&E audit Report ho. SQA 89002, dated January 9,
,'
1990, focused on ALARA and radiological effluent monitoring.
Overall, the audit found that the ALARA program was adequate- and-
;
cffective, and cited a number of strengths.
However, a condition
;
adverse. to quality was found regarding the failure to implement an
.
ALARA standard.
In discussions with' ALARA group- personnel, the
:
l
l
                      routed to Radcon engineers f 'a courtesy. and that Radcon had a
inspectors learned that the need for an ALARA standard was identified
                      backlog of up to six months between receipt and complation. This
r
                      delay. in corrpletion was-attributed to the reduced level of'the ALARA                   3
by the corporate office and that Nuclear Engineering (NE) had three:
                      staff and an increase in DCNs.- In managerrent . interviews. the
design guides for use for ALARA reviews. These design guides had not
                      Chairman.of the ALARA Comittee stated that a large number of DCNs                         1
been formalized into the program,- DesignChanceNotices(DCNs)were
                      were issued during the outage and that it impactec the work of the                           ;
routed to Radcon engineers f 'a courtesy. and that Radcon had a
                    ' ALARA Connittee.         The inspectors reviewed thc change to Radcon                       l
l
                      Instruction 10, ''Implenenting ALARA- for - Radiaticn Exposure and -                         i
backlog of up to six months between receipt and complation.
                      Radiological Environnental Imptets" and noted that the standard was                         '
This
                                                                                                                  ,
delay. in corrpletion was-attributed to the reduced level of'the ALARA
                                                                                                                i
3
                                                                                                                1
staff and an increase in DCNs.-
In managerrent . interviews. the
Chairman.of the ALARA Comittee stated that a large number of DCNs
1
were issued during the outage and that it impactec the work of the
' ALARA Connittee.
The inspectors reviewed thc change to Radcon
Instruction 10, ''Implenenting ALARA- for - Radiaticn Exposure and -
Radiological Environnental Imptets" and noted that the standard was
,
i
1
" ' "
" ' "
                                          , - < - - -       - - ,                       -                 ,-
, - < - - -
- - ,
-
,-


                        _               . _ . _       .._         _     _           _ _       _ - . _ _ ._
_
                                                                                                                          ,
. _ . _
                                                                                                                          D
.._
                                                                                                                            I
_
  , ,; . .       7
_
                    .
_
                                                                                                                            ;
_
                                                                                                                          'i
_ - . _ _ ._
                                                          11                                                               l
,
                                                                                                                            t
D
                            approved.   However, it was not approved for in.pleneentation by NE due
I
,-                          to lack of staffing resources. The new change implementing the                                 !
,; . .
I                          standard would - require that radiological impact evalut,tions be                               i
7
;
.
,
'i
11
l
t
approved.
However, it was not approved for in.pleneentation by NE due
to lack of staffing resources.
The new change implementing the
!
,-
standard would - require that radiological impact evalut,tions be
i
I
conducted for most site radiological work. The standard also requires
'
,
that ALARA Awareness training be given to all NE radiological in. pact
!
evaluators.
The inspectors noted that the standard was approved by
l
the station en July 17
1969, but had not been implenented in the
1
- past year,
j
-
.
The inspectors in reviewing surveillances of the radcon' program noted
a significant number of worker radiological knowledge problems were
identified as well as compliance problems.
,
.
.
i
The inspectors determined that the audits and ~ surveillances were ;
i
generally indepth and docunented substantive prcblems that were being
j
addressed by the licensee.
!
3.
Exit Interview
The inspection scope and- findings were supinarized on June 29, 1990, with
,
-those persons indicated in Paragraph 1.
The items discussed are outlined
,
in the sunnary to this report.
Licensee management stated that it was
i
their position that the station.was operating the ALARA program with a
realistic collective dose ' goal.
The licensee stated that it was their
intent to fully account for the collective dose for the remainder of -
FY 1990; however, the licensee was not able to offer a specific number for
;
the collective dose goal.
The licensee made an oral- commitment. to
establish a realistic annual collective dose goal for the remainder of
'
'
                            conducted for most site radiological work. The standard also requires                          ,
,
                            that ALARA Awareness training be given to all NE radiological in. pact                          !
t
                            evaluators. The inspectors noted that the standard was approved by                              l
FY 19M. On July 30, 1990, D. Collins ,-' B. Wilson - J. ' Brady. . R. Shortridge :
                            the station en July 17 1969, but had not been implenented in the                                1
-
                          - past year,                                                                                    j
l
                                                                                                                            -
of Reglon II NRC and C. Vondra, C. Kent, and C. Whittemore of Sequoyah
                                                                                                              .
Nuclear plant participated in a telephone : conversation relating to the
                            The inspectors in reviewing surveillances of the radcon' program noted
1
                            a significant number of worker radiological knowledge problems were
weaknesses identified in the report and actions that are being taken by
                            identified as well as compliance problems.
,
                                                                ,
the licensee to resolve the weaknesses. . During the- telephone conversation,
                                                                  .     .                                                 i
the licensee outlined the following- insnediate actions: ' (1) the licensee
                            The inspectors determined that the audits and ~ surveillances were ;                          i
                            generally indepth and docunented substantive prcblems that were being                        j
                            addressed by the licensee.                                                                     !
            3.       Exit Interview
                      The inspection scope and- findings were supinarized on June 29, 1990, with                            ,
                    -those persons indicated in Paragraph 1. The items discussed are outlined                              ,
                      in the sunnary to this report. Licensee management stated that it was                                i
                      their position that the station.was operating the ALARA program with a
                      realistic collective dose ' goal. The licensee stated that it was their
                      intent to fully account for the collective dose for the remainder of -
                      FY 1990; however, the licensee was not able to offer a specific number for
;                    the collective dose goal. The licensee made an oral- commitment. to
'
'
                      establish a realistic annual collective dose goal for the remainder of                                ,
has established a monthly collective dose goal and will manage collective
t                    FY 19M. On July 30, 1990, D. Collins ,-' B. Wilson - J. ' Brady. . R. Shortridge :                    -
:
l                    of Reglon II NRC and C. Vondra, C. Kent, and C. Whittemore of Sequoyah
dose using this as e management tool-through FY 1990; (2) Sequoyah has
                      Nuclear plant participated in a telephone : conversation relating to the                          1.
t
                      weaknesses identified in the report and actions that are being taken by                              ,
formally established a task force to develcp a comprehensive source term
                      the licensee to resolve the weaknesses. . During the- telephone conversation,                        '
                      the licensee outlined the following- insnediate actions: ' (1) the licensee
                      has established a monthly collective dose goal and will manage collective                             :
                      dose using this as e management tool-through FY 1990; (2) Sequoyah has                               t
'
'
                      formally established a task force to develcp a comprehensive source term                              .
                      reduction plan; (3) additional resources have been provided to recover
                                                                                                                            '
!
!
reduction plan; (3) additional resources have been provided to recover
.
'
'
contaminated areas of the plant' that resulted from the U1, C4 outage and
.
plans are to recover these areas ' prior. to the U2, C4 outage; (4) the-
'
'
                      contaminated areas of the plant' that resulted from the U1, C4 outage and                            .
licensee plans to use more temporary shielding for. the upcoming outage;
                      plans are to recover these areas ' prior. to the U2, C4 outage; (4) the-                            '
!
                      licensee plans to use more temporary shielding for. the upcoming outage;                             !
(5) the licensee dons not currently plan to implement the ALARA Standard'
                      (5) the licensee dons not currently plan to implement the ALARA Standard'
for Nuclear Enginee-ing or provide formal ALARA training other than than
                      for Nuclear Enginee-ing or provide formal ALARA training other than than                             i
i
                      currently provided in GET or in preparation for special activities, and
currently provided in GET or in preparation for special activities, and
                      (6) the licensee hhs included more senior nembers of .the plant staff on
(6) the licensee hhs included more senior nembers of .the plant staff on
                      the ALARA Conrnittee, which is now chaired by the Plant Manager.- The
the ALARA Conrnittee, which is now chaired by the Plant Manager.- The
                      licensee did not ide~ntify any of'the material provided to, or reviewed by
licensee did not ide~ntify any of'the material provided to, or reviewed by
                      the inspector dur'.ng the inspection, as proprietary.
the inspector dur'.ng the inspection, as proprietary.
,
e
"-
, , ,
~
,
,
                                                                                                                            e
.,
"-          , , ,                              ~ , .,     ,- ,     .,             -.     <                   a , ,, , *
,- ,
.,
-.
<
a
, ,,
, *
}}
}}

Latest revision as of 01:59, 17 December 2024

Insp Repts 50-327/90-23 & 50-328/90-23 on 900625-29.No Violations or Deviations Noted.Weaknesses in Program Implementation Noted.Major Areas Inspected:Plant Program to Maintain Occupational Dose to Workers ALARA
ML20059H043
Person / Time
Site: Sequoyah  
Issue date: 08/21/1990
From: Gloersen W, Potter J, Shortridge R
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
To:
Shared Package
ML20059H033 List:
References
50-327-90-23, 50-328-90-23, NUDOCS 9009140202
Download: ML20059H043 (12)


See also: IR 05000327/1990023

Text

_. -

._.

,

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l

-

-

.

.

p tt;p

UNITED STATES

j

p

"g

NUCLEAR REGULATORY COMMIS$10N

i

['

REGION 11

~{

$

101 MARIETT A STRE ET, N.W.

l

g

2

ATLANTA,GEDR3tA 30323 '

-

% ,, . #

M)6 3 01990

i

i

Report Nos.: 50-327/90-23 and 50-328/90-23

i

Licensee: Tennessee Valley Authority

6N38a lookout Place

l

1101 Market Street'

.;

Cnattanooga, TN 37402-2801

Docket Nos.: 50-327 a".1 50-326

Licensee Nos.:

DPR-77 and DPR-79

i

,

Facility Name: Sequoyah I and 2

,

Inspection Conducte .

Ju e'25-29, 1990

//

I

Inspecto :

R/B

dge

gned

W. pl ' o~

e

Fat ' Signed

,

/.V O

'

Approved by:

_

~

'

'

d(P. . Potter,' ChWf

Uate' Signed

Facilities kediation Protection Section -

'

Emergency Preparedness and Radiological

Protection Branch

'

Division of Radiation Safety and Safeguards

SUMMARY

1

Scope:

!

  1. '

,

,

This routine, unannounced inspecthn of radiation protection activities focused

i

on the plant program to maintain occupational! dose to workers as low as

'

reasonably achievable (ALARA).

Results:

No violations or deviations were identified. . All elements.necessary for an.

adequate ALARA program were in place.

However, there were weaknesses in

program implementation in the following areas:

accountability for. collective -

dose by department managers (Paragraphs 2.b and c); establishment of collective

L,

dose goals and management of collective dose (Paragraph 2.d); implementation of-

a comprehensive source term reduction program; at Sequoyah--(Paragraph 2.h).-

- ,

reduction of contaminated areas of the plant (Paragraph 2.1); . awareness

1

training for plant staff and radiological impact evaluators and implementation-

i

of an ALARA standard for the station (Paragraphs 2.j and k). : Based on the

.]

telephone conversation discussed in Paragraph 3, the NRC, Region II-under_ stands

-

that Sequoyah is taking action on several of these matters.

,

l

i

9009140202 900830

-l

PDR

ADOCK 05000327

J

G

PNU

.-.

.

.

. - .

.-

~

,- .-

__

-

. _ _ -

_ - - _ - _ _ _ _ _ _ _

a

. , . . .

.

,

!

i

REPORT DETAILS

'

I

1.

Persons Contacted

t

Licensee Employees

l

,

  • R. Beecken, Manager, Maintenance

!

  • H. Burrynski, Manager Site Licensing

i

J. Bynum, Vice President, Nuclear Power Production

  • W. Byrd, Manager, Project Controls & Financial Services
  • R. Daniels Engineer, Nuclear Engineering
  • G. Fiser, Superintendent, Chemistry and Environmental

,

  • S. Holdefer, Health Fhysicist,' Radiological Controls

!

  • G. Hudson, Corporate Manager, Radiological Controls

j

  • M. Lorek, Superintendent. Operations

'

  • J. Osborne, Health Physicist, Radiological Controls
  • J. Proffitt, Acting Manager, Compliance Licensing
  • W. Smith, Specialist, Quality Assurance

i

  • M. Sullivan, Superintendent, Radiological Controls
  • P. Trudel, Project Engineer, Nuclear Engineering

i

'

  • C. Vondra, Plant Manager
  • C. Whittemore, Engineer, Licensing

>

Other licensee employees contacted during this' inspection included

craf tsnan, engineers, mechanics, technicians, and adn.inistrative

,

personnel.

,

Nuclear Regulatory Connission

l

  • P. Harmon, Senior Resident Inspector

,

'

  • D. Loveless, Resident Inspector

'

  • Attended exit interview

2.

MaintainingOccupational-ExposuresALARA(83728)

10 CFR 19.12, states, in part, that all individuals working in or

frequenting any portion of a restricted area; shall -be instructed in

'

precautions or procedures to minimize exposure.

10CFR20.1(c) states,inpart.thatpersonsengagedinactivitiesunder

g

l

licenses issued by the NRC should, in addition to complying with the

'

,

requirements set forth in this part, make every reasonable effort to

(

maintain radiation exposures, as low as reasonably achievable (ALARA). .

,

Other recontended elements of an ALARA program are contained in Regulatory

,

,

Guides 8.8 and 8.10.

1

The following are observations that the inspectors made during the

inspection. The observations were idcntified for licensee consideration.

for program improvement, but have no specific regula*;ory requirement.

,

i

i

, - , - - . . , . . .

.

.--

.

.

.

.

!

.. .

.

.

.

.

2

i

i

t

i

a.

ALARA Program

j

The station's ALARA program was controlled by three administrative

.

procedures, ALARA Planning, Site ALARA Connittee, . and ' ALARA

Suggestion Procram.

These procedures described personnel functions

- I

and responsibilities for the program and name the Site Director as

"

having the ultimate onsite authority and responsibility for its-

.

implementation. The Superintendent of Radiological Controls (RADCON)

advised the Plant Manager and supervisors regarding dose reduction,.

and plant supervision was responsible for implerrenting procedures to

reduce collective dese.

In addition, first .line supervision was

responsibic to actively pursue' and encourage the subniittal of ALARA .

i

suggestions, and each individual was to be cognizant of, and work to

minimize, his or her dose.

b.

Dose Accountability

f

!

The inspectors reviewed the licensee's method to account for the

l

station's collective dose.

The review included an examination of

selected ALARA pre-job and post-job reviews and discussions with

licensee representatives.

It was observed that for the Unit 1. (UI,

C4) refueling outage, approximstely 90 percent of the station's

collective dose (893 person-rem out of g8? person-rem accumulated)

,

underwent an ALARA review.

On the average, the licensee had been

performing ALARA reviews for. approximately 85' percent of the

station's collective dose.

The licensee had an adequate program for

,

dose accountability although, as .noted. . in Paragraph 2.c of this.

report department management was not always utilizing the information,

i

All jobs whose estimated collective dose was greater than l' man-rem

!

received an ALARA review by the radiological controls group.

Jobs

!

whose estimate was greater than five person-rem went to the ALARA

Comittee for review.

Job history files which were used during the

review process, were maintained by the radiological l controls group.

l

The _ inspectors also reviewed radiologicalt incident reports (RIP,s)

covering the period from January to June 1990, and observed that

there were no significant ALARA program weaknesses or trends

I

identified. One RIR identified an isolated event in which a group of

!

resistance temperature detector (RTD) modification' fitters removed.

,

insulation 'and lead shielding without proper health. physics (HP)

coverage. The licensee took inrediate corrective action and escorted

.

t

the fitters from the work area and analyzed their personnel

dosimeters.

There were no individual doses which exceeded the-

l

administrative limits.

The long term corrective actions included

'

.

retraining on RWP requirenents, a review of the event, and a review

- !

on the proper method to notify HP.

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During this inspection, interviews with several departmental n.anagers

cn ALARA awareness and accountability were conducted.

The licensee

i

had identified that it was not clear that line n.anagement was held

!

'

accounttble for radiological dose performance goals.

Licensee

representatives indicated that in response to this finding, inclusion

of departnental collective dose performance e als in departnental

4

managers' performance appraisals would be evaluated and considered.

!

I

c.

Dose Management

The inspectors interviewed several departmental managers, reviewed

managsment tools used to. track. collective dose, and reviewed the

,

departmental collective dose perfonnance against the dose allotnent.

!

Theinspectorsdiscussedwithlicenseemantgersandsupervisorsthe

utility s ALARA program, including their knowledge of ALARA goals,

concepts, policies - and procedures

individual responsibilities,

1

personnel exposure, and dose limits.

Additionally, the discussions-

included managers' cons.unication with co-workers and supervisors,

.

participation in the ALARA suggestion program, the n.anagers'

perspective on how to iniprove the ALARA program, what events have

- !

caused increased personnel dose, and what events or conditions have

!

helped reduce personnel radiation doses.

The: inspectors interviewed

n.anagers or supervisors from the following departments: maintenance,

.

nuclear engineering, operations, technical support, and steam

l

'

generator maintenance.

Each individual interviewed was generally

familiar with' the basic ALARA concepts. - Additionally. -individuals

,

interviewed knew that they had a- basic responsibility for-

implementing the utility's ALARA program by performing tasks in a

manner- consistent with the utility's ALARA- policy.

Although it

appeared that u.anagers were aware of departmental dose goals, only

i

one of the n.anagers interviewed knew his numerical departnental

'

collective dose goal.

'Similarly, only one of the managers

intin!iewed knew the current accumulated collective dose for his

i

department.

Mr.nagere generally understood where the ALARA

l

requirements originated and what utility docun.ents described the

ALARA program objectives.

,

The inspectors also reviewed the licensee's department collective

dose performance against the various departnental goals.

Each

department except the Operations Department had exceeded its fiscal

year (FY)1990dosegoal. The data are sunenarized below:

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Departrent

FY 90 Goal

FY 90 Actual

(person-rem)

(person-rem)

!

-

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Maintenance

209

269

L

Modifications

200

418

.

Technical Support Services

11

13

i

Radiological Control

100 ,

111

'

Quality Assurance

27

38

!

Operations

30

23

!

!

Nuclear Engineering

30

57

l

Steam Generator

65

139

i

Other

18

7

T6 tat

UU

TOR

i

As will be discussed in Paragraph 2.d. of this report, the higher

j

than projected collective dose was due to the work scope of the

l

outage including RTD bypass renioval

UHI removal, steam generato.

,

nozzle dem installation, and reactor coolant pump modifications.

The inspectors also reviewed the licensee's pethods for tracking

collective dose for effective. dose managenient.

It was observed that

the licensee had a good program for accessing the data base:to track

.

L

individual dose, departmental collective dose, and job collective

i

dose. These data were easily displayed numerically or in the form of

!

'

charts and graphs that could easily be used by. the departniental

l

L

manager to track, trend, and manage their dose allotment.- Through

,

-

i

discussions with the licensee, it was noted that-during the. last

l

outage only the Maintenance Departn.ent received collective dose trend

I

i

charts.

Although the information was available, the other

1

i

departnients had not requested nor had . they been provided the

collective dose summary information in order to aid in n.anaging their

<

departmental dose allotment.

d.

Collective Dose Goal

!

The inspectors reviewed the licensee's procedures and methods used to

establish the collective annual dose goal.

Based on a review of

data, procedures, and interviews with managers and ALARA group

,

personnel, the inspectors noted that the site annual collective dose

goalwasbasedonworkscopefortheyearandwasinitially(developed

by the ALARA Cemittee.

The Radiological Controls Group Radcon)-

i

forwarded to each department head the anticipated work scope for the'

,

l

year and dose rates expected.

The department section heads provided

!

the number of man-heurs and developed their FY dose estin.ates for

l

subn.ittal to the ALARA Conmiittee for approval. After a review by the

ALARA Conuittee, the annual collective dose goal' approval chain was

the Plant Manager, Site Director, Vice President Nuclear Power

Production, and Vice President Nuclear Power..

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In mid-1989, Radeon collected department inputs for FY 1990 and

'

submitted 912 persen-rem to the ALARA Comittee for approval.

On

October 13,1pCS, the ALARA Comittee sut" ited the estimate to the

l

Site Director. The initial estimate was disapproved, and the goal was-

l

established at CBS person-rem.

The goal of 685 person-rem was

exceeded in' April of 1990 due to 6dditional work sco>e, .an escalated

schedule, and weaknesses that are. discussed in deta'l later in the

,

i

inspection report.'

,

In June 1990, the superintendent of Radcon submitted a change request

for a new annual ~ collective dose goal of 1,365 person-rem.

The

justification for the amended goal was that work scope changes had

not been icehtified during the initial goal developnent, and a shift

of 20 days of the Unit 2, Cycle 4 outage into FY 1990 (20 days of

U2, C4 outage are expected to result;in as much as 350 person-rem).

In addition. -durin0 this FY 1990 goal development process, site.

rnanagement reduced the site goal to below what was in the goal basis.

The justificetion for the change was submitted on June 15, 1990, from

the V. P. Nuclear Power Production to the Senior V. P. Nuclear Power

and was rejected.

During this inspection, the Radcon ALARA group was in the process of

preparing a justification' for another change to . establish the

,

collective dose-goal at 1,035 >erson-rem., The' inspectors noted that

'

currently the site collective cose was at 1,075 person-rem, and three

months remained in FY 1990.

After interviews with key department managers and plant managenent'

(Paragraph 2.c), the inspectors noted that< the parties associated

with establishing an annual site collective dose goal did not appear

+o be comunicating well; that the current effort underway, if

approved, would not result in a realistic goal since it had been

surpassed;-and that the licensee was not effectively using the goal

process as one of the managenent tools to control collective dose at

l

the station.

The inspectors noted the recomendations in Regulatory

l

Guide 8.8 that meeting appropriate ALARA goals and objectives

l

provided measures of ALARA program effectiveness.

l

During the exit meeting, the Plant Manager stated that a realistic

'

collective dose goal would be developed for the remainder of FY 1990,

c.

ALARA Reviews

Licensee procedure requires that. pre-job ALARA reviews be performed

for. all jobs in which the collective dose was expected to exceed

I rerson-rem or where radiation dose rates exceed I rem per hour.

/11so, for jobs expected to result in collective dose greater than

5 person-ren, an ALARA Comittee review was required. The inspectors

selectively evaluated prc-job ALARA reviews performed in 1990.s and

verified that appropriate dose reduction techniques and lessons

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learned from previous similar work were considered in the reviews. To

aid workers in reducing dose, dose reduction techniques and

,

were listed on an addendum

requirements developed by the ALARA group (RKP) and'went to the field

[

'

to the applicable radiation work permit

,

i

as'sp cial instructions with the RWP.

The inspectors requested post-job ALARA reviews for 12 of the U1,

C4 outage high dose jobs.-

Radeon was still working with other

!

department personnel on the post-job debriefings and provided six

completed post-job reviews.

Based on an evaluation of the post-job-

reviews and discussions with plant personnel, the inspectors

-

determined that problems occurred during the outage that resulted in

higher than anticipated dose to workers. The following are the more

significant problems: -(a) non-critical path work was performed in

,

containment when the reactor coolant- system (RCS) water level was .

drained for RTD bypass removal; the loss of water shielding resulted.

in an increase in radiation levels of 200-300 percent. . Dose cost was

46 person-rem; (b) minimal amounts of temporary lead shielding were

used due to unavailability, delays, schedule, and seismic restraints;

( 'e cost was 15 person-rem;-(c) poorly traintd and or inexperienced

> ;ers; dose cost 11 person-rem; (d) overcrowding,in work areas .and

'

.

large use of respirators due to. high levels of. loose surface

-

.ntamination; dose cost unquantifiable.

The_insSectors noted that

L

l

the licensee had purchased additional temporary s11elding and other.

problems identified in the post-job debriefings were placed.on an

action item list to be resolved prior to the upcoming Unit 2 outage.

!

'

The inspectors reviewed dose estimates for 55 jobs that included RWP

hours and dose rate information.

The following sunnary shows -the

.

estimated versus actual performance:

1

i

i

Percent of.

Estimated

Actual

Estimate

Number of people

3,603

7,460

207

-

RWP hours

103,238

11%917

1111

Whole Body Dose

694.366

893,018

129

(person-millirem)

Whole Body Dose Rate

6.72

7.27

116

5

(person-millirem /hr)

The inspectors concluded that the process for estin.ating doses for

jobs was good for the majority of jobs and that the post-job reviews

were identifying significant problems, that when corrected, would

,

improve dose control.

'

f.

ALARA Consnittee

!

The inspectors reviewed and discussed - with cognizant licensee

representatives the current: ALARA Connittee organization and its

functional responsibilities.

Details regarding the Connittee

,

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organization and functions were_ outlined. in SQA-209, " Site ALARA

Comittee," Revision 1 dated April 9,1990. The Comittee consisted

,

l

of at least one representative each from radiological controls,

maintenance, operations, modifications, site OA, and nuclear

'

engineering whose attendance was required for a quorum.

Representatives from:the corporate. office were normally invited. .

The Connittee reviewed ercas of potential exposure in the plant:to-

determine mechanisms to reduce doses and to review dose saving

suggestions for viability.

The Chairman of the Comittee was

nonna11y the= Maintenance Penager; however, this responsibility ~ was

.

recently being shared with the Plant Manager.

By procedure, the ALARA Comittee was required to meet quarterly;.

however,- during the outage period the Comittee would reet nore

. frequently, typically. weekly to tronthly.

Af ter reviewing Comittee

meetino . attendance records for 1990, the inspectors noted two

cancelled neetings due to lack of attendance.

The inspectors

reviewed the topics discussed during the ALARA Comf , tee neetings

which mainly consisted of review and approval of high dose jobs and a

review of ALARA suggestions.

Recently, the threshol . for requiring'

the site ALARA Comittee to review and. approve work Das reduced from-

10 to 5 person-rem.

Additionally, the site ALARA Comittee was

recently given the responsibility to review containment power entries

and establish designated containment power entry days for scheduling

and coordinating work.

Also, the site ALARA Comittee was. tasked

with performing quarterly reviews of departmental and station dose

goal performance and making recomendations and : adjustments .when

necessary.

The licensee's ALARA suggestion program was effective, with 'several

dose savings suggestions implenented.

In 1989,.33 ALARA suggestions

were submitted, and eight were being implemented to dete.

In 1990,

14 suggestions were submitted, and two were being implerented.

The

licensee's incentive program has resulted in individuals submitting

viable suggestions.

An liLARA subcomittee prereviews_~ all ALARA

suggestions and submits the best ones to the : ALARA Comittee for

consideration,

g.

Dose Reduction Initiative

The inspectors discussed with licensee representatives. from both the

y

station and the corporate office, several dose reduction initiatives

I

which have been implemented.

It was noted that the licensee had

implemented an induced crudburst control and cleanup program at the

station.

The program allowed the. licensee to control when a

crudburst would occur by adding hydrogen peroxide to' the primary

coolant system and removing the activated crud using the ion exchange

purification system. This-program helped the licensee lower the dose

rates and contamination levels in the primary system and irtprove-

water clerity for refueling operations.

During the U1, C4 outage,

hydrogen peroxide was added to the primary coolant with the system

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con.pletely full which maximized the Co-60 removal due to the

increased letdown ficw rate and circulation 'in .the' loops.

The.

!

licensee had also undertaken several other dose reduction projects.

!

The following dose reduction initiatives were either completed or

j

scheduled:

Reactor head instrument port conoseal c1kmp replacement

!

RTD menifold removal (U1 con.pleted; U2 scheduled for FF4),duled

Upper head injection system removal (U1 completed; U2 sche

'

.

,

forRF4).

i

!

Laser videodisc and photographic display system (U1' completed;

1

U2 scheduled for RF4)

.

Reactor coolant pun.p cartridge-type seal nodification (two RCPs-

'

per unit remaining for modification)

!

Modification on steam generator nozzle dam.s to reduce time for

!

installation in steam generator channel head (Unit I completed;

j

Unit 2scheduledforRF4)

Additionally, the inspectors' noted that.the licensee was considerin

f

the acquisition of a permanent reactor-head shield to reduce genera

,

!

area dose rates during fuel movement.

Acquisition of a head shield

'

was slated for the Fall of 1991.

The inspectors also discussed with licensee representatives the use

of temporary shielding during the U1', C4 outage.

It was determined

that several scheduling constraints and seismic concerns precluded

shielding crews from installing some shielding near the RTD manifolds

'

which resulted in- higher doses for- crews performing S/G sludge-

lancing operations.

Another contributing problem was a lack of lead

,

shielding.

The inspectors discussed with representatives from the.

'

corporate office and the station the use of standard load tables for

adding temporary shielding to piping and various components to aid in

.

reducing the amount of time for approval and installation of

1

temporary shielding during outage critical path periods,

h.

Source Term Reduction Initiatives

r

The inspectors discussed with licensee representatives from the

'

station and corporate office methodsi for reducing out-of-core

radiation sources ' which would offer -the greatest potential for

'

continued reductions in occupational radiation dose.

The

techniques

discussed

included

cobalt . source

reduction.

~

'

preconditioning of out-of-core surfaces, control of crud transport,.

and chemical decontamination.

Earlier this year, the licensee's corporate office had identified the

need-to formulate a concerted source term reduction program.for TVA.

!

The corporate chemistry department initiated a plan to formulate

connittees to address source term reduction initiatives such as:

stellite control, system preconditioning, chemical decontamination,

i

and elevated reactor coolant pH.

The licensee's_ Watts Bar= facility

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9

had comitted the resources to help develop and implement the source

term reduction initiatives.

With site-specific cdjustments, the licensee's corporate office

planned to apply the source term reduction initiatives at the other

TVA facilities.

As of this inspection, the licensee's source term

reduction plan was still in the developmental stages; consequently a

site-specific plan for the Sequoyah facility had not been addressed..

HowcVer, as noted in Paragraph 2.g, the licensee's Sequoyah facility

has taken the initiative to reduce future occupational collective

rediation dose by component removal, such as the RTD bypass manifolds

'and the upper head injection system on Unit-1, and hydrogen peroxide-

cddition at shutdown.

The inspectors noted that there was no

schedule for application of the Watts Bar initiatives at the Sequoyah

facility.

1.

Contaminathn Controls

The inspectors reviewed the licensee's program to control

contaniination at the source.

The inspectors noted the licensee had

exceeded the goal of 240 personnel contamination events (PCEs) by 12

at the end of June.

Licensee personnel stated that, although six

weeks of the Unit.2 outage is scheduled for this FY, they felt that

PCEs will be lower than the pre.vious two years of 409 in 1988 . and

435 in 1989.

During tours of the radiologically controlled area (RCA)- of: the

plant, the inspectors observed that large areas were being controlled

as contaminated after the outage.- Based on licensee data, the total

RCA was 228,940 square feet (ftr) of which 8,200 fte of reclaimable

and 17,200 ft2 of non-reclaimable area existed prior to the U1, C4 -

outage.

During the inspection the - licensee was maintaining

13,612 fte as reclainable and 17,000 fte as non-reclaimable

contaminated area for a total of 30, 612 ftr. : The -inspectors

determined that a significant cmount of non-reclaimable area at

Sequoyah was normally considered reclaimable at other utilities. The

inspectors interview d licensee personnel and learned that the higher

priorities. may have prevented engineering approval to- place pump

shaft guards on pumps in radioactive systems.

Such guards would help

contain contan.ination.

Consequently pun.ps with radioactive leaks

resulted in whole rooms being contaniinated rather than just the pump

bed.

Licensee personnel stated that at the end of the outage the intent

was to reclaim areas that became contaminated during the outage, but

resources to acconiplish - this were eliminated.

Also, licensee

representatives stated that durin

resources (training and staffing) g both normal and outage periods

were limited in comparison to the

task.

The inspectors discussed this issue with plant management and

were- inforned that the engineering problem regarding approval for

containnents would be given inmediate attention 'and that for . Unit 2

-

.

.

.

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outage personnel would be inade available for' decontamination work.

!

Licensee managenent stated that it was their goal to reclaim

contandnated areas during the titre between obtages 50 that the total

l

contendnated area would be the s6ne going into the next outage as

l

there was going into the past outage.

,,

'

j.

ALARA Training

The inspectors toured the Plant Op(erations Training Center and

~

reviewed general erployee training GET) lesson plans.

1he lesson

,

plans appeared to be well developed as were the instructor teaching

aids.

Based on interviews with instructors and plant. personnel, the

i

inspectors learned that, other than GET, plant personnel did not'

receive additicr.61 classroom training in ALARA concepts, techniques,

or practical factors. The licensee, in the past year, had eliminated

'

,

,

from the station's curriculum ALARA Awareness training and' Advanced

'

'

Radiation Worker training. - In addition. the number of instructors-

providing the training had been cut back.

ALARA Committee neeting

-

-

minutes 90-18. June 15,1990, recorded that employee exit interviews

revealed a number of concerns relating to dose reduction. The ALARA

Comittee, in seeking a resolution to this item, had requested that

GET be reviewed for ALARA content.

The inspectors ' concluded that

although training tret the requirements of -10 CFR 19.12, there had

,

been reductions in that area of training that had been intended to

i

result in better worker dose control.

k.

Audit Program

1

The inspectors reviewed audit reports perforrned by the fluclear

!

Quality Audit and Evaluation- (NOA&E) group and surveillances

~

,

performed by Quality Assurance Organizations for radiological

controls.

In general the eudits and surveillances were indepth and

substantive.

NQA&E audit Report ho. SQA 89002, dated January 9,

,'

1990, focused on ALARA and radiological effluent monitoring.

Overall, the audit found that the ALARA program was adequate- and-

cffective, and cited a number of strengths.

However, a condition

adverse. to quality was found regarding the failure to implement an

.

ALARA standard.

In discussions with' ALARA group- personnel, the

l

inspectors learned that the need for an ALARA standard was identified

r

by the corporate office and that Nuclear Engineering (NE) had three:

design guides for use for ALARA reviews. These design guides had not

been formalized into the program,- DesignChanceNotices(DCNs)were

routed to Radcon engineers f 'a courtesy. and that Radcon had a

l

backlog of up to six months between receipt and complation.

This

delay. in corrpletion was-attributed to the reduced level of'the ALARA

3

staff and an increase in DCNs.-

In managerrent . interviews. the

Chairman.of the ALARA Comittee stated that a large number of DCNs

1

were issued during the outage and that it impactec the work of the

' ALARA Connittee.

The inspectors reviewed thc change to Radcon

Instruction 10, Implenenting ALARA- for - Radiaticn Exposure and -

Radiological Environnental Imptets" and noted that the standard was

,

i

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approved.

However, it was not approved for in.pleneentation by NE due

to lack of staffing resources.

The new change implementing the

!

,-

standard would - require that radiological impact evalut,tions be

i

I

conducted for most site radiological work. The standard also requires

'

,

that ALARA Awareness training be given to all NE radiological in. pact

!

evaluators.

The inspectors noted that the standard was approved by

l

the station en July 17

1969, but had not been implenented in the

1

- past year,

j

-

.

The inspectors in reviewing surveillances of the radcon' program noted

a significant number of worker radiological knowledge problems were

identified as well as compliance problems.

,

.

.

i

The inspectors determined that the audits and ~ surveillances were ;

i

generally indepth and docunented substantive prcblems that were being

j

addressed by the licensee.

!

3.

Exit Interview

The inspection scope and- findings were supinarized on June 29, 1990, with

,

-those persons indicated in Paragraph 1.

The items discussed are outlined

,

in the sunnary to this report.

Licensee management stated that it was

i

their position that the station.was operating the ALARA program with a

realistic collective dose ' goal.

The licensee stated that it was their

intent to fully account for the collective dose for the remainder of -

FY 1990; however, the licensee was not able to offer a specific number for

the collective dose goal.

The licensee made an oral- commitment. to

establish a realistic annual collective dose goal for the remainder of

'

,

t

FY 19M. On July 30, 1990, D. Collins ,-' B. Wilson - J. ' Brady. . R. Shortridge :

-

l

of Reglon II NRC and C. Vondra, C. Kent, and C. Whittemore of Sequoyah

Nuclear plant participated in a telephone : conversation relating to the

1

weaknesses identified in the report and actions that are being taken by

,

the licensee to resolve the weaknesses. . During the- telephone conversation,

the licensee outlined the following- insnediate actions: ' (1) the licensee

'

has established a monthly collective dose goal and will manage collective

dose using this as e management tool-through FY 1990; (2) Sequoyah has

t

formally established a task force to develcp a comprehensive source term

'

!

reduction plan; (3) additional resources have been provided to recover

.

'

'

contaminated areas of the plant' that resulted from the U1, C4 outage and

.

plans are to recover these areas ' prior. to the U2, C4 outage; (4) the-

'

licensee plans to use more temporary shielding for. the upcoming outage;

!

(5) the licensee dons not currently plan to implement the ALARA Standard'

for Nuclear Enginee-ing or provide formal ALARA training other than than

i

currently provided in GET or in preparation for special activities, and

(6) the licensee hhs included more senior nembers of .the plant staff on

the ALARA Conrnittee, which is now chaired by the Plant Manager.- The

licensee did not ide~ntify any of'the material provided to, or reviewed by

the inspector dur'.ng the inspection, as proprietary.

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