RBG-21363, Rev 0 to Station Operating Procedure ADM-0053, Asiatic Clam Control Program

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Rev 0 to Station Operating Procedure ADM-0053, Asiatic Clam Control Program
ML20127M798
Person / Time
Site: River Bend 
Issue date: 06/21/1985
From:
GULF STATES UTILITIES CO.
To: Harold Denton
Office of Nuclear Reactor Regulation
References
ADM-0053, ADM-53, RBG-21363, NUDOCS 8507010356
Download: ML20127M798 (9)
v • d • e


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RIVER REED STATION i

APPROVAL SIEET STATION OPERATING PROCEDURES 50.

ADM-0053 TITLE ASIATIC CLAM CONTROL PROGRAM M MTED TER E0 TECENICAL REVIEW EEqUIRED TES E0]

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ASIATIC CLAM CONTROL PROGRAM 1

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l TABLE OF CONTENTS 1

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SECTION I

PAGE NO.

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-l 1.0 PURPOSE / APPLICABILITY 1

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2.0 REFERENCES

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~ 3. 0 RESPONSIBILITIES 1

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4.0 ADMINISTRATIVE CONTROLS l

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5.0 GENERAL REQUIREMENTS l

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l 5.1 Monitoring and Trending of Safety Related l

l Equipment Using Service Water 4

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l 5.2 Biological Monitoring for Asiatic Clams 4

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5.3 Sampling & Visual Inspections 5

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5.4 Chlorination 6

l 5.5 Reporting l

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1 l -1.0 PURPOSE / APPLICABILITY I

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l This procedure establishes the program for prevention and detec-I 1.1 l

tion of Asiatic clams, performance monitoring of safety related l

I equipment using normal service water, and the required reporting.

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This Program shall apply to all Station Operating Personnel, I

l Environmental Services Personnel, and Licensing Personnel respon-l I

sible for the monitoring, detection, preventative maintenance, and i

I reporting as required by this procedure.

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1.3 I

l This procedure becomes applicable upon introduction of river water l

into the normal service water system.

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2.0 REFERENCES

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2.1 1

l RBS Technical Specifications Sections 6.8.4.d and 6.9.2.b l

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l IE Bulletin 81-03 Flow Blockage of Cooling Water to Safety System l

Components by Corbicula sp. (Asiatic Clams) and Mytilus sp.

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(Mussel)

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2.3 ESP-8-049 Biological Monitoring for Asiatic Clams el i

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I ADM-0048 Performance Monitoring and Trend Analysis Program i

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I PEP-0025 Biofouling Detection of Safety Related Equipment i

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2.6 PMP-8047 Preventative Maintenance Inspections and Sampling for I

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Biofouling I

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l 2.7 SOP-0094 Hypochlorination and Chemical Feed i

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l 2.8 ADM-0010 Station Reporting Requirements l

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2.9 I

l RBG-18715 Lettor Booker (GSU) to Seyfrit (NRC) dated August 21, I

1984 I

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l 2.10 Joint Intervenors and State of Louisiana's motion to withdraw con-l l

tention 1 related to the ASIATIC clam.

Dated October 10, 1984 l

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l 2.11 ADM-0019 " Initiation and Processing Condition Report" l

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3.0 RESPONSIBILITIES I

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I Plant Manager has overall responsibility to ensure this program is l

implemented in accordance with commitments to the NRC and l

l Technical Specification Requirements.

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3.2 l

Supervisor Environmental Services, or designee, is responsible for l

l ensuring that biological monitoring is conducted in accordance l

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.with Reference 2.3 and for reporting per section 5.5 of this l

procedure.

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3.3 I

Mechanical Maintenance Supervisor, or designee, is responsible for l

I coordination of the inspection and sampling of Safety related l

I equipment in accordance with Reference 2.6.

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Process Systems Supervisor, or des'ignee, is responsible for en-l I

suring that Performance monitoring and trend analysis are carried I

l out in accordance with Reference 2.4 and 2.5.

Results shall be l

l submitted to the Supervisor Environmental Services for reporting I

purposes.

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3.5 I

Assistant Plant Manger Technical Services Responsible for review l

I of ACCP per section 4.1 of this procedure.

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I 4.0 ADMINISTRATIVE CONTROLS l

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4.1 Review l

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Review of the ACCP and its results for adequacy shall be II I

conducted after each twelfth quarterly report (once every l

three years). This review will be conducted by the l

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Supervisor Environmental Services and Assistant Plant l

Manager Tech Services. A review for adequacy will also l

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follow any Licensee Event Report attributable to Asiatic l

clams.

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4.2 Record Retention I

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Records relative to the ACCP shall be retained for five l

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.'.CCP Reviews I

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l Licensee Event Reports attributable to Asiatic Clams i

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Request for changes 1

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I Quarterly reports I

I 4.3 Changes to the ACCP l

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Requests for changes to the ACCP must be submitted to the l

l NRC and should include an assessment of the proposed l

l changes and supporting justification. Written approval of I

I the proposed changes from the NRC shall be received prior l

to their implementation.

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5.0 GENERAL REQUIREMENTS i

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I Monitoring and Trending of Safety-Related Equipment using Normal I

Service Water.

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l The Performance Engineer is responsible for monitoring and l

l trending the performance of Safety Related Equipment in ac-l I

cordance with Reference 2.4 and 2.5.

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The Performance Engineer will submit a.

reports quarterly l

I to the Process Systems Supervisor in accordance with l

l section 5.5 of this procedure.

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b.

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Performance Monitoring will be conducted monthly on l

I the following equipment:

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I Control building Water Chiller Condensers l

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Auxiliary Building Unit Coolers l

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Emergency Diesel Generators I

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4) 1 Residual Heat Removal Heat Exchangers Il I

1 5) l Penetration Leakage Control Compressors and after l

coolers.

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I Trending will be accomplished in accordance with I

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Reference 2.4.

l Heat exchanger not meeting performance l

I Acceptance Criteria shall be removed from service, in-l l

spected and corrective action taken.

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l 5.2 Biological Monitoring for Asiatic Clams l

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5.2.1 l

l Biological monitoring for Asiatic Clams will be accom-l plished in accordance with Reference 2.3.

Monitoring will

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be performed to detect the presence or relative abundance I-of corbicula in the following areas:

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Mississippi River - Jemi-Monthly April thru November, I

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Monthly December thru March l

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Intske Embayment - Monthly l

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I Normal Cooling tower Basins - Monthly - one basin each l

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l Clarifier Influent - Semi-Monthly April thru November, I

Monthly December thru March l

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I Clarifier Effluent - Weekly April thru November, I

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g Monthly December thru March 5.2.2 -During any period of interruption of continuous ch-I l

lorination of the Normal Services Water Syste n greater than I

l 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> per step 5.4.1 of this procedure, sampling I

l frequency of the clarifier effluent shall increase to

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g daily.

5.3 Samplina and Visual Inspections l

5.3.1 Visual-inspection and sampling will be performed by the I

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Mechanical Maintenance section and the Environmental I

g Services Section in accordance with Reference 2.6.

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g following equipment will be inspected at the prescribed g

intervals. Environmental Group will take samples of g

sediment in each component to be analyzed for the presence I

g of Asiatic clams.

Control building Water Chiller Condensers - Yearly I

a.

g (One Condenser each Quarter) b.

Auxilliary Building Unit Coolers - Yearly (One Cooler. f!

g each month)

Emergency Diesel Generator Coolers - each cooler every I c.

g-Refueling Outage i

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Penetration Leakage Control Compressor After Coolers - I g

Yearly (One Cooler each 6 months.)

l RHR Heat Exchangers - each heat exchanger every I

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Refueling Outage.

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In the event Service Water is cross connected with the Fire I I

Protection or RPCCW System, the Shift Supervisor / Control I

Operating Foreman shall be responsible for notifying the I

Mechanical Maintenance Supervisor, and the responsible I

I System Engineers. Cross connection will require preven-I I

tative maintenance in accordance with the applicable sec-I tion of Reference 2.6.

The affected system will be flushed I with domineralized water to remove any infestations.

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I 5.3.3 I

If any Sampling inspections reveal juvenile or adult class I

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ance. testing of all other S.afety-Related components I

monitored in section 5.1.1 will be conducted within seven l

(7) days. A Condition Report will be generated in accord-I I

ance with Reference 2.11 which identifies the amount of I

clams relative to the size of the heat exchanges, systems I

affected and corrective actions taken to prevent further I

g spread of clams.

5.4 Chlorination l

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I 5.4.1 Chlorination will be in accordance with Reference 2.7.

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chlorination system will be operated continuously during I

the months of April thru November to maintain total free I

residual chlorine concentration between 0.6 ppe and 0.8 ppe I

in the Service Water return header as read on recorder 1-I WTH-AR144. The Service Water Return Header Chlorine Hi/ Low I

alarm setpoints will be 0.3 ppe Lo and 1.1 ppe Hi.

In the I

I event the chlorination system is not able to maintain I

greater than.3 ppe residual chlorine, a Condition Report I

shall be initiated within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> in accordance with l

Reference 2.11.

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5.4.2 Chlorination during the months of December thru March I

I should be maintained at a level to control biofouling, I

I without exceeding the chlorine discharge limits of the I

I NPDES permit.

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5.5 Reporting I

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I 5.5.1

~I Report preparation will be the responsibility of the l

I Environmental Services Group Supervisor, and will be in ac-l I

cordance with Reference 2.8.

Reports will be submitted on l

l a quarterly basis to the Joint Intervenors following the l

I end of each calender quarter. The period of the first l

report will begin upon initial introduction of river. water I

I into the Normal Service Water System and will include at l

I least one full calender quarter. The reports will contain l

I a summary of the ACCP activities at River Bend Station and I

I copies of NPDES monitoring reports of chlorine discharges I

I for the quarter. The Process System Supervisor, or l

I designee, will provide trend analysis results of systems l

I-using river water to the Supervisor Environmental Services l

I for inclusion in this report. Copies of this report will l

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be submitted to the Nuclear Licensing group for formal sub-I l

I mittal to the State of Louisiana and the NRC.

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5.5.2. Upon identification of infestation of any Class in a l

I Safety-Related system of a magnitude which causes or may l-I cause flow blockage, a report will be submitted'to the NRC l

I within 30 days describing the level of infestation, af-l I

facted system, and measures taken to prevent further I

infestation.

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' o & m =e**

GULF STATES UTILITIES COMPANY POSTOFFICEBOX 2951

  • BEAUMONT, TEXAS 77704 AREA CODE 713 838-6631 June 21, 1985 RBG-21363 File No. G9.5 Mr. H. R. Denton, Director Office of Nuclear Reactor Regulation U. S. Nuclear Regulatory Commission Washington, D. C.

20555

Dear Mr. Denton:

River Bend Station - Unit 1 Docket No. 50-458 Enclosed for your review is our Asiatic Clam Control Program for River. Bend Station.

Any questions or comments should be directed to Mr. James Cook at (409) 839-3013.

Sincerely,

f. E. h J. E. Booker Manager-Engineering, Nuclear Fuels & Licensing River Bend Nuclear Group JEB/JWC/lp Enclosure

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