ML17299A360

Preplanning Alternate Sampling Program,Palo Verde Nuclear Generating Station Mode Specific Sampling Requirements for Inoperable Effluent Monitors.

ML17299A360
Person / Time
Site:	Palo Verde
Issue date:	05/17/1985
From:	ARIZONA PUBLIC SERVICE CO. (FORMERLY ARIZONA NUCLEAR
To:
Shared Package
ML17299A359	List: ML17299A357 ML17299A360
References
PROC-850517, NUDOCS 8506130432
Download: ML17299A360 (5)

Text

Page 1 of 5 PRE-PLANNING ALTERNATE SAMPLING PROGRAM PALO VERDE NUCLEAR GENERATING STATION MODE SPECIFIC SAMPLING REQUIREMENTS FOR INOPERABLE EFFLUENT MONITORS APPROVAL:

Plant Review Board Date Q-PVNGS P nt Manager Wz7 <M 850bi30432 850522 PDR ADOCK 05000528 P PDR'

Page 2 of 5 PASP General Provisions Technical S ecification 3.3.3.9 Action Items 37 and 42 The Pre-Planned Alternate Sampling Program (PASP) is designed to provide an Operational Mode Specific alternative to alleviate the rigorous Techni-cal Specification Action Item requirements when source terms do not justify a 12 hour1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> sampling frequency. The alternate sampling frequencies are listed on page 5. Guidance for actions to be taken when high range mon-itors are inoperable are given on page 4.

If during Mode 1 or 2 operation, both the low and high range effluent monitors of a particular release point become inoperable, the following actions shall be taken within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> of declared inoperability in addi-tion to the alternate sampling frequencies specified herein for inoperable low range effluent monitors.

RU-141 and 142 Condenser Evacuation Monitors Refer to RMS trend displays for Steam Generator Blowdown Monitors RU-4 and RU-5 providing steam generator blowdown is in progress. If Steam Generator blowdown is suspended for greater than 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> or as an alterna-tive to RU-4 and RU-5, install a portable noble gas monitor as described below to monitor the condenser evacuaction pump discharge. These actions will ensure timely detection of significant changes in primary to secondary steam generator tube leakage.

RU-143 and RU-144 Plant Vent Monitor An increase in the noble gas release rate can be detected by reviewing the RMS trend displays for RU-9, RU-10 and RU-15. RU-1 should be added to this list if a containment purge is in progress. As an alternate to the above, install a portable noble gas monitor as described below to monitor the Plant Vent effluent. These actions will ensure timely detection of a significant increase of noble gas discharges through the Plant Vent.

RU-145 and 146 Fuel Buildin Vent Monitor Install a continuous air monitor at the 140 foot elevation of the fuel building, or install a portable noble gas monitor as described below to monitor fuel building ventilation system effluent. These actions will ensure timely detection of 'a significant increase of noble gas discharges through the Fuel Building Vent.

Portable Noble Gas Monitor The portable noble gas monitor will provide a qualitative assessment of noble gas concentration trends in plant effluents. =These monitors should have a minimum sensitivity of 1.0E-4 LlCi/cc and be channel checked daily.

these monitors should also either alarm locally or provide a continuous recording of detector response so that a change in relative activity con-centrations can be readily'assessed, and appropriate actions initiated.

Page 3 of 5 PASP Technical S ecification 3.3.3.1 Action Item 28 The PASP is also intended to address alternatives to the operability of the POST ACCIDENT SAMPLING SYSTEM. This section of the program will be added at a later date through a special approval request to NRC Region 5 for major changes to the Pre-Planned Alternate Sampling Program.

The initial PASP will be approved by NRC Region 5 prior to implementation.

Changes to PASP will be approved by the PLANT REVIEW BOARD and reported to the NRC in the Semi-Annual Effluent Report in accordance with the Administrative Controls Section of Plant Technical Specifications Section 6.16.

DENOMINATION OF FREQUENCIES USED IN THE PASP N/R No Requirement M Monthly at least once every 31 days 4/M At least four times per month, at intervals no greater than 9 days D Daily at least once every 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> S Shiftly at least once every 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />

Page 4 of 5 PASP Nureg 0737 Monitors Mid/High Range (RU-142; RU-144; RU-146)

Noble Gas Channels; Particulate/Iodine Samplers; and Flow Rate Measuring Devices Technical S ecification 3.3.3.9 Table 3.3-13 Action 42 Items 3.B 4.B 5.B Complete one of the following:

A. If the corresponding low range noble gas monitoring channel is operable and releases are on-scale and normal, complete the requirements of part

b. of Action 42 only. The requirement to sample radioiodines and particu-lates can be met at the normal range samplers or installed grab sample points when the high range samplers are inoperable.

B. If the normal range monitors are over-ranged and off-scale due to abnormal effluent concentrations, resulting in the declaration of an emer-gency classification, grab sampling should be initiated at a frequency sufficient to adequately characterize the magnitude and offsite dose con-sequences of the release. The frequency of sampling should be determined by the Radiological Protection Coordinator in the TSC or the Radiological Protection Monitor in the STSC in accordance'ith the Emergency Plan and Emergency Plan Implementing Procedures. Also, complete the require- 'he ments of part b. of Action 42.

PASP Page 5 of 5 Technical Specification 3.3.3.9 Table 3.3-.13 Action 37 Low Range Noble Gas Monitoring Channels Noble Gas Grab Sampling Frequencies Item 3.A.a RU-141 Condenser Evacuation Effluent Monitor Gas Channel Mode Prior to Initial Criticalit 6 5 4 3 2 Frequency No Requirement iN/R N/R D D S Item 4.A.a RU-143 Plant Vent Effluent Monitor Noble Gas Channel Mode Prior to Initial Criticalit 4 3 Frequency Monthly 4/M D D Item 5.A.a RU-145 Fuel Building Effluent Monitor Noble Gas Channel

'4'ithout Irradiated Fuel in Storage Pool Mode Prior to Initial Criticalit 5 4 2 1 Frequency No Requirement Until Mode 4 N/R M

'Nit)> Irradiated Fuel in Storage Mode Prior to Initial Criticalit 6 5 3 2 1 Frequency i'lonthly )'I M M M M

'While ))oving Irradiated Fuel Mode Prior to Initial Criticalit 6 4 3 2 Frequency Daily D D D