ML19308D630

Tech Spec Change Request 19 Re Tech Spec 2.4,deleting Requirement for Flow to Be Continuously Measured & Recorded & Instead Be Measured & Recorded Per Revised Table 2.4-4

ML19308D630
Person / Time
Site:	Crystal River
Issue date:	02/17/1978
From:	FLORIDA POWER CORP.
To:
Shared Package
ML19308D624	List: ML19308D623 ML19308D628 ML19308D630 ML19308D634
References
NUDOCS 8003050836
Download: ML19308D630 (3)

Text

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Technical' Specification Change Request No. 19 (Appendix B)

Replace pages 2-12 and 2-22 with the attached revised pages 2-12 and 2-22.

Proposed Change In Specification 2.4.2.G, delete the requirement for the flow to be 4

continuously measured and recorded and instead be measured and recorded per Table 2.4-4.

In Table 2.4-4, add a column " Flow Rate Recorder." Under this heading, the waste gas decay tank, the reactor building purge exhaust duct and the auxiliary building and fuel handling building exhaust duct will have a continuous flow rate recorder. It follows that since they must have a continuobs flow rate recorder, the flow will be continuously measured.

The condenser vacuum pump exhaust will be required to have its flow recorded shiftly. This exhaust does not have and was not designed to have a continuous ficw rate recorder.

Safety Analysis Justifying Procosed Change The condenser vacuum pumps operate in one of three modes: off, normal operation, and hogging. When the pump is off, no flow is being ex-hausted. During normal operation, the pump has only to maintain the condenser vacuum. The hogging mode is only used for a short period of time to establish a vacuum on the condenser. For the latter two modes, the respective flows are constant and a shiftly recording of these values is adequate.

The radiation monitor on the condenser exhaust is set to alarm near its lower limit of detectior, and no trip function is available. Monitor sensitivity is not dependent upon mode of vacuum pump operation.

Accountability for the activity released is provided by periodic grab sample analysis, monitor count rate and the flow rate during the period of release. Determination of flow rate on a shiftly basis coupled with '

the records of the mode of pump operation provide adequate data for accountability and release rate determinations.

Benefit-Cost Analysis of Procosed Change The benefit is that the proposed change will bring the technical speci-fications in line with the actual design of the plant. This proposed change will not result in any cost to the environment. l l

l 8008050$36 l 2022-P l

2-12 (2) If the average release rate per site of all radioiodines and radioactive materials in particulate form with half-lives greater than eight days during any calendar quarter is such that 4

50 [3.5 x 10 y >l (3) If the amount of iodine-131 rieased during any calendar quarter is greater than 0.3 Ci/ reactor.

D. During the release of gaseous wastes from the primary system waste gas holdup sy nem the efflue:.t monitor for the Waste Gas Storage Tanks shall be operated and set to alarm and to initiate the automatic closure of the waste gas discharge valve prior to exceeding the limits specified in 2.4.2.A above. The operability c' each automatic isolation valve listed in Table 2.4-4 shall be demonstrated quarterly.

E. The maximum activity to be contained in one waste gas storage tL.ic shall not exceed 47,000 curies (considered as Xe-133).

Gaseous Waste Samoling and Monitoring Reouirements F. Plant records shall be maintained and reports of the sampling and analyses results shall be submitted in accordance with Section 5.6 of these Specifications. Estimates of the sampling and analytical error associated with each reported value should be included.

G. Gaseous releases to the environment (noble gases), except from the turbine building ventilation exhaust shall be continucusly monitored and recorded for gross radioactivity and the ficw measured and recorded per Table 2.4-4. Whenever these monitors are inoperable, grab samples shall be taken and analyzed daily for gross radioactivity.

If these monitors and/or recorders are inoperable for more than seven days, these releases shall be terminated.

H. During the release of gaseous wastes from the primary system waste gas holdup system, the gross activity monitor, the iodine collection device, and the particulate collection device shall be operating.

I. All waste gas effluent monitors shall be calibrated at least quarterly by means of a known radioactive source which has been calibrated to a National Bureau of Standards scurce. The relationship between effluent concentration and monitor readings should m

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Table 2.4-4, PWR-GASEOUS WASTE SYSTEM LOCATION OF PROCESS AND EFFLUENT MONITORS AND SAMPLES REQUIRED BY TECllNICAl. SPECIFICATIONS Grab Radiation Auto Control to Flow Rate Continuous Sample Measurement Capabilities Procr.ss Stream or Release Point Alann Isolation Valve Recorder Monitor Station NG I Part 11 - 3 Alpha F

Process Strear.

Waste Gas Decay Tank x x Continuous RMA-11 x x x x x x lond::nser Vacuum Pump Exhaust x Slii f tly RMA-12 x x x x x x

' Building Ventilation Systems m Reactor Building Purge Exhaust h Duct

[whenever there is flow] x x Continuous RMA-1 x x x x x x Auxiliary Building and fuel llandling Building Exhaust Duct

• x x Continuous RMA-2 x x x x x x Whis exhaust includes the radwaste area.

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