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Docket File 50-275 METB Docket File Docket No. 50-323 METB Reading File JAN 0 81985 ADRP Reading File MEMORANDUM FOR: Dennis M. Crutchfield, Assistant Director CMoon for Safety Assessment, DL M
WPGamill FROM:
Daniel R. Muller, Assistant Director CAWillis for Radiation Protection, DSI CRNichols
SUBJECT:
CONFIRMATORY REVIEW 0F DIABLO CANYON, UNIT NO. 2, TECHNICAL SPECIFICATIONS PLANT NAME: Diablo Canyon Nuclear Power Plant, Unit 2 LICENSING STAGE: 0L DOCKET NUMBER: 50-323 RESPONSIBLE BRANCH: LBf3; H. Schierling, PM REVIEW STATUS: Continuing We have reviewed the appropriate portions of the updated technical specifications package enclosed with your December 17, 1984 memorandum requesting our review. As a result of this review, we are able to confirm that the technical specifications are acceptable, with only the following exception. We have enclosed the necessary changes that we have,
identified in the fann of a mark-up of the technical specification.
The mark-up changes are based on a Diablo Canyon, Unit 2, design which utilizes only one hydrogen monitor in the gaseous radwaste system.
If the design utilizes two hydrogen monitors, the technical specifications should be changed to comport with the model radiological effluent technical specifications given in NUREG-0472, which is based on the use of two hydrogen monitors.
The reviewer who is cognizant of the hydrogen monitoring technical specifications is Charles R. Nichols (x27634) of the Meteorology and Effluent Treatment Branch.
Cr!dalst;ndd b[
Daniel R. t.tuller, Daniel R. Muller, Assistant Director for Radiation Protection Division of Systems Integration
Enclosure:
As stated cc:
R. Bernero 0FC :DSI:RP:METB :DSI:RP:METB :DSI:RP:
TB :
DSI:RP
_____:.__ p ___:_e w & w ___
NAME :CNichols:dj : CAWillis
- WPGa 1
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01/[/85 01/ [ /85 :
DATE : 01/07/85
- 01/e7 /85 :
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- 4 #' p',e,1 TABLE 3.3-13 (Co'ntinued) n e vv -c e m
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TABLE NOTATION At all times.
- During GASEOUS RADWASTE SYSTEM operation (treatment for primary system offgases).
- Whenexr CDITAWNINT 14 TEGRIN is reouired.during nortrul operahons ord rehdy ACTION STATEMENTS ACTION 50 -
With the number of enannels OPERABLE less than required by the Minimum Channels OPERABLE requirement, the contents of the tank (s) may be released to the environment for up to 14 days provided that prior to initiating the release:
a.
At least two independent samples of the tanks contents are analyzed, and b.
At least two technically qualified members of the Facility Staff independently verify the release rate calculations and discharge valve lineup; Otherwise, suspend release of radioactive effluents via this pathway.
ACTION 51 -
With the number of channels OPERABLE less than required by the
('
Minimum Channels OPERABLE requirement, effluent releases via this pathway may continue for up to 30 days provided the flow rate is estimated at least once per 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.
ACTION 52 -
With the number of channels OPERABLE less than required by the Minimum Channels OPERABLE requirement, effluent releases via this pathway may continue for up to 30 days provided grab samples are taken at least once per'1(3 hours3.472222e-5 days <br />8.333333e-4 hours <br />4.960317e-6 weeks <br />1.1415e-6 months <br /> and these samples are analyzed for gross activity within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.
ACTION 53 -
With the number of channels OPERABLE less than required by the Minimum Channels OPERABLE requirement, immediately suspend
(
containment VENTING and PURGING of radioactive effluents via this pathway.
ACTICN 54 -
With the number of channels OPERABLE one less than required by the Minimum Channels OPERABLE requirement, operation of this system may continue for up.to 14 days. With no channels operable, be in at least HOT STANDBY within 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />, i
ACTION 55 -
With the number of channels OPERABLE less than required by the i
Minimum Channels OPERABLE requirement, effluent releases via the affected pathway may continue for up to 30 days provided samples are continuously collected with auxiliary sampling equipment.as required in Table 4.11-2.
ACT10tl S6 "
Witt, il'e homber e4' ehene els OfEKABLL'less tk. reguised by ike ht;,.in, 6.. eeto entnotZ oty.hrc~ent, eperatos. er ts u syste m _n a y co n +.'a ee p re vlhdy-p u
.ruoths ey eguormen t; q ' ) \\,
ers coucc.ted ork
%e.rswise tlc hyd*** gen ca een}rs +len of tie waste gssse.r al.all J,e j
gassened 1e exceed 9% ay valu e in acwatance ;ti, ereciflAd
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DIABLO CANYON - UNIT 1
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TABLE 4.3-9 5
g RADI0 ACTIVE GASEOUS EFFLUENT HONITORING INSTRUMENTATION SURVEILLANCE REQUIREMENTS
"$E CHANNEL H0 DES FOR WHICH CHANNEL SOURCE CHANNEL FUNCTIONAL SURVEILLANCE
\\
h INSTRUMENT CHECK CHECK CALIBRATION TEST 8
REQUIRED 1.
GASEOUS RADWASTE SYSTEM U
- a. Noble Gas Activity Honitor -
Providing Alarm and Automatic
~
Termination of Release (RM-22)
P P
R(3)
Q(1) 2.
GASEOUS RADWASTE SYSTEM EXPLOSIVE GAS HONITORING SYSTEM
- a. Oxygen Monitors (ANR-75 or 76)
D N.A.
Q(4)
H R
b Mrd"*se~ H**ifor 3.
PLANT VENT SYSTEM y
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- a. Noble Gas Activity Monitor e
Providing Alarm (RM-14A or 148)
D M
R(3)
Q(2) i
' i
- b. Iodine Sampler W(5)
N.A.
H.A.
N.A.
{
- c. Particulate Sampler W(5)
N.A.
N.A.
N.A.
- d. Flow Rate Monitor (FR-12)
D N.A.
R Q
- e. lodine Sampler Flow Rate Monitor D
N.A.
R Q
i l
l 4.
STEAM. GENERATOR BLOWDOWN TANK VENT
'{
- a. Gross Activity Honitor (RM-27)
D H
R(3)
Q(2) 5.
CONTAINHENT PilRGE SYSTEM a.
Noble Gas Activity Honitor -
Providing Alarm and Automatic Termination of Release D
P R(1)(3)
Q I
(RM-14A & 140)
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TABLE 4.3-2[(Continued)
TABLE NOTATION
- At all times.
- During GASEOUS RADWASTE SYSTEM operation (treatment for primary system offgases).
(1) The f.FANNEL FUNCTIONAL TEST shall also demonstrate that automatic isolation of this pathway and control room alarm annunciation occurs if any of the following conditions exists:
1.
Instrument indicates measured levels above the alarm / trip setpoint i
(isolation and alarm).
2.
Relay control circuit failure (isolation).
3.
Instrument indicates a downscale failure (alarm only).
4.
Instrument controls not set in operate mode (alarm only).
(2) The CHANNEL FUNCTIONAL TEST shall also demonstrate that control room alarm annunciation occurs if any of the following conditions exists:
1.
Instrument indicates measured levels above the alarm setpoint.
2.
Circuit failure.
'i 3.
Instrument indicates a downscale failure.
4.
Instrument controls not set in operate mode.
i (3) The initial CHANNEL CALIBRATION shall be performed using one or more of the reference standards certified by the National Bureau of Standards or 4
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using standards that have been obtained from suppliers that participate in measurement assurance activities with N85. These standards shall permit calibrating the system over its intended range of energy and measurement range. For subsequent: CHANNEL CALIBRATION, sources that have j
been related to the initial calibration shall be used.
4 i
(4) The CHANNEL CALIBRATION shall include the use of standard gas' samples 4
containing a nominal:
1.
Two volume percent oxygen, balance nitrogen, and 2.
Four volume percent oxygen, balance nitrogen.
l (5) The CHANNEL CHECK shall consist of' verifying that the fodine cartridge and particulate filter are installed in the sample holders.
(4) Tte CHANWEL CAlts heised *ksil'In*Ivde the use e F a s io n al se d. g s.1 somyle c*n+=InIn
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EXPLOSIVE dAS MIXTURE LIMITING CONDITION FOR OPERATION 3.11.2.5 The concentration of oxygen in the GASECUS RA0 WASTE SYSTEM shall be limited to less than or equal to 2% by volumewkeske A /,.ge-ce-c.ca te.t..a e ae.ce/c f
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h v.!<
e APPLICABILITY: At all times, o
ACTION:
With tAe concentration of oxygen in the GASEOUS RADWASTE SYSTEM a.
greater than 2*. by volume but less than or equal 4% by volume, reduce the oxygen concentration to the above limits wi-hin 48 h With the concentration of Coxygen,v.e syde yen e.a a.d
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na sei. e
,in the GASECUS RADWASTE SYSTEM b.
greater than 4% by volumegimmediately suspend all additions of waste gases to the system and reduce the concentration of oxygen to less than or equal to 4% by volume within one hour, an:.'*.. by
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%s. take Acricot y e6.e The provisions of Specifications 3.0.3 and 3.0.4 are net a::plicable.
c.
SURVEILLANCE RECUIREMENTS -
d._
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4.11.2.5 The concentration of oxygen in the GASEOUS RA09ASTE SYSTEM shall be 3
determined to be within the above limits by ::ntin. ;;'y monitoring the waste gases in the GASEOUS RA0 WASTE SYSTEM with the oxygen monitors required OPERABLE by Table 3.3-13 of Specification 3.3 3.10.
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