ML20082J006

Annual Environ Operating Rept for 820915-830914

ML20082J006
Person / Time
Site:	Sequoyah
Issue date:	09/14/1983
From:	TENNESSEE VALLEY AUTHORITY
To:
Shared Package
ML20082H992	List: ML20082H989 ML20082J006
References
NUDOCS 8312010349
Download: ML20082J006 (13)

Text

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ENCLOSURE SBQUOYAH NUG. EAR PLANT ANNUAL ENVIRGIMENTAL OPERATING REPORT (AEOR)

In accordance with the Segacyah adt 1 and 2 (Appendix B)

Environmental Technical Specifications (ETS), Section 5.4 exempts matters regulated under the Clean Water Act from the AEOR requirement, as long as copies of all reports submitted in accordance with the NPDES requirements are submitted to NRC. H is exemption includes routine reports (subsection 5.4.1) and nonroutine reports (subsection 5.4.2).

ETS subsection 4.1.1 is applicable to emergency dischr.rge of chemical substances which could cause environmental impact related with plant operation. On November 20, 1982 and January 6,1983, SQN experienced minor spills involving petrolen products. A repor:t concerning these unanticipated discharges was prepared for submitt:1 to EPA as required by 40 CPR 112.4 and submitted on March 14, 1983. Inadvertently, NRC was lef t off of the copy list. The above referenced report is provided f or your inf ormation.

I ETS subsection 4.1.2 is applicable to incidents of noncomplying discharges frca various discharge points at SQN enumerated in the i NPDES permit. Notice of noncompliance reports and quarterly Discharge Monitoring Reports (DMRs) are used to report noncompliances with the NPDES permit limitations. Copies of both reports are routinely submitted to the NRC.

Nonradiological matters not regulated by the Clean Water Act, but

' covered by other permitting or licensing programs, include solid and hasardous waste disposal and air pollution emissions. These programs do not specify routine monitoring or reporting requirements in relation to established limitations. There have been no incidents of exceeding limitations (4.1.2) relevant to these program areas during the time period of September 15, 1982 to September 14, 1983. In l

addition, no unusual or important environmental events (4.1.1) except for the above mentioned oil spills, have occurred at this f acility for this timeframe.

Finally, there have been no changes made to the above ref erenced State and Federal permits and certifications. h ere have been no changes in the station design which involve a significant environmental impact or change the findings of the Final Environmental Statement for the Sequoyah Nuclear Plant.

i 9312010349 031121 PDR ADOCK 05000327 R PDR

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IAAR 141983 Mr. Al J. Smith, Chief Environmental Emergency Branch U.S. Environmental Protection Agency Region IV 345 Courtland Street, NE.

Atlanta, Georgia 30365

Dear Mr. Smith:

SEQUOYAH NUCLEAR PLANT - REPORT OF OIL SPILLS ON NOVEMBER 20-21, 1982, AND JANUARY 6, 1983 (M10,569)

The enclosed reports are submitted under 40 CFR Section 112.4 since th~ere have been two spills within a 12-month period from the Sequoyah Nuclear Plant. Also enclosed is a copy of the Sequoyah Nuclear Plant Spill Prevention Control and Countermeasure Plan. Copies of the reports are also being sent to the Tennessee Department of Public Health, Livision of Water Quality Control.

If you have any questions concerning this matter, please contact:

Mr. Stephen R. Wells Environmental Quality Staff

. Tennessee Valley Authority 315 Multipurpose Building Muscle Shoals, Alabama 35660 (205) 386-2971 or FTS 872-8971 Sincerely, Original Signed By -

M. T. El-Ashry i

Mohamed T. El-Ashry, Ph.D.

Director of Environmental

, Quality SRW:BC Enclosures cc (Enclosures):

Mr. D. Elmo Lunn, Director B. W. Brown, 140 EB-K l Tennessee Department of Public Health H. J. Green, 1750 CST 2-C Division of Water Quality Control J. R. Henson, 1470 CST 2-C TERRA Building C. L. Massey, 125 IBM-C

150 Ninth Avenue, North M. C. Msarsa, 268 401B-C Nashville, Tennessee 37203 H. S. Sanger, Jr., EllB33 C-K l

Prepared by Stephen R. Wells (EQS); reviewed by W. Walter LaRoche (OGC) i l

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United States Environmental Protection Agency Report of 011 or Hazardous Material Discharge The following information is submitted concerning a discharge of oil or hazardous material:

1. Time and date of discharge:

Exact time and date unknown.

Suspect discharge occurred over the weekend of November 20-21, 1982.

2. Material discharged:

Diesel fuel.

3. Location of the discharge, including city, county and state:

Sequoyah Nuclear Plant Hamilton County Approximately 18 miles north of Chattanooga, Tennessee Tennessee River Mile 484.5-

4. Quantity of material discharged from the facility or vessel:

Estimated 5 to 10 gallons.

5. Description of the vessel or facility from which the material was discharged (i.e., pipeline, tank, well, etc.):

A container of diesel fuel located in the construction yard area leaked fuel.

6. Name, address and telephone number of the owner of the vessel or facility described above in ~(5): .

Tennessee Valley Authority

Contact:

Mohamed T. El-Ashry, Ph.D.

Director of Environmental Quality Tennessee Valley Authority TVA Mailroom 126 Locust Street Building Knoxville, Tennessee 37902 ,

615-632-2007 or FTS 856-2007 l 7. Name, address and telephone number of the operator of the vessel or facility described in (5) and, if dif ferent from (6) above, describe the relationship between the owner and operator (i.e., employee, subcontractor, lessee , . etc.):

Same as item 6 above.

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8. Did the material reach any water (yes or no): Yes

a. If yes, desc' ribe'the first water reached and the lo' cation of this water:

Chickamauga Reservoir on the Tennessee River at approximate river-mile 484.5.

b. State'the quantity of material reaching the water described above in 8(a):

Estimate: Approximately'5 gallons.

c. State the_ quantity of material reaching the shoreline of the water described above in 8(a) which did not reach the water:

Unknown - Shoreline here is riprap.

d. Was the water described above in 8(a), at tne time of the discharge a tributary of, or physically connected to, any part or tributary of a riverine, hydrological or creek system?

(yes or no): )'ES

c. If'the answer to (J) is yes.. describe or name the waterways to which the waters in 8(a) connect or flow:

Chickamauga Reservoir on the Tennessee River at mile 484.5.

f. At the time of discharge describe the following:

1) Depth of the receiving waters - Approximately 50 feet

2) Width of the receiving waterway - Approximately 1500 feet

3) Flow of the receiving water - 50,000 cfs 4): Nature of the stream including whether there are.well defined ,

banks - The river has well defined banks.

g. If the answer to (d) is no, does the water described above in 8(a) periodically connect with or flow into any tributary or part of any_ riverine, hydrological or creek system? If yes, describe the flow and connection: N/A

h. Describe any commerce connection (i.e., governmental, industrial, private, recreational, agricultural, or navigational uses) of the waters and waterways described in c, d, e. or g above:

Chickamauga Reservoir is a multipurpccc reo rvoir which is classified by the State of Tennessee for use as an industrial water supply, domestic water supply, recreation, navigation, livestock watering and wildlife, fish and aquatic life, and irrigation.

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9. Prior to any clean up efforts, did the material cause any film or sheen, i.e., discolcration or irridescent appearance, on the adjoining shorelines of, or surface of, any water described in Item 8? If yes, describe:

YES. ,

• 1 A light irridescent sheen of approximately 600 square feet was ap' parent '

on the surface of the water within the barge slip indicated on the attached site map.

10. Prior to any clean up efforts, did the material cause any sludge or I emulsion to be deposited on the adjoining shorelines of, or beneath the  !

surface of, the waters described above in Item 8? If yes, describe l

l No l

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11. Did the discharge violate any applicable water quality standards: If yes I describe: A visible sheen as described above in 9 was apparent.

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12. Date and time of discovery that the discharge was reaching the waterway:

November 22, 1982 at 12:30 p.m. EST

13. Describe in detail what actually caused the discharge:

Small container of diesel I'uel was accidentally released to a wet weather drainage ditch on the piantsite tnat leads to the Tennessee River.

14. Describe damage to the environment. For example, miles of stream af fected;

-observed damage to animals and/or vegetation:

No damage to animal life or vegetation was observed. Approximately 600 square feet of surface area of the waters was visually affected extending approximately 100 yards up and down the Tennessee River from the point of discharge.

15. Describe steps taken to clean up the discharged material and to mitigate environmental damage including dates and times steps were taken: .

At approximately 2:00 p.m. EST on the 22nd an oil absorbent hoom was deployed across the entrance to the barge slip to retain the surface sheen. Clean up with oil absorbent pads was commenced and completed on November 23, 1982.

16. List the federal and state agencies, if any, to which the owner or operator reported the discharge. Show the agency, its location, the date and time of notification of the official contacted:

Tennessee Department of Public !!ealth, Chattanooga, Tennessee -

November 22, 1982 at 2:45 p.m. EST National Response Center (Petty Officer King), Washington, D.C. -

November 22, 1982 at 2:55 p.m. EST Environmental Protection Agency, Atlanta, Georgia -

November 22, 1982 at 3:07 p.m. EST

_4

17. List'the names and addresses of persons believed to have knowledge of the facts surrounding this incident:

Charles Aydelott Jim G. Mantooth Sam W. Hixson Tennessee Valley Authority Tennessee Valley Authority Tennessee Valley Authority Division of Construction Division of Nuclear Power Division of Nuclear Power

• Sequoyah Nuclear Plant 1470 Chestnut Street Tower 1470 Chestnut Street Tower II

' Daisy, Tennessee Chattanooga, Tennessee Chattanooga, Tennessee

18. List the names and addresses of persons completing this report and your relationship to the owner or operator of the involved vessel or facility:

. Jim G. Mantooth - Employee Tennessee Valley Authority Division of Nuclear Power 1470 Chestnut Street Tower II Chattanooga, Tennessee 37401

19. List other information which you wish to bring to the attention of the EPA. For example, number employed by the firm; contractual agreement for oil material discharge responsibility.

None

20. Measures taken by your company to prevent future discharges:

Personnel were instructed to exercise care in future . handling and disposal of fuels and waste oils.

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The above answers are true to the best of my knowledge and belief.

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United States Environmental Protection Agency Report of Oil or Hazardous Material Discharge The following information is submitted concerning a discharge of oil or hazardous material:

1. Time and date of discharge:

Exact time unknown. January 6, 1983

2.  ?!aterial discharged:

Unit One Turbine Seal Oil Commercial Brand - ARCO TVA Code Sto-1 Current name & number - Ideal Plus S150 Industrial Grade AGt!A-0 (Formerly Ideal S150)

ISO Grade VG-32

3. Location of the discharge, including city, county and state:

Sequoyah Nuclear Plant Hamilton County Approximat'ely 18 miles north of Chattanooga, Tennessee Tennessee River ) tile 484.5

4. Quantity of material discharged from the facility or vessel:

Estimated to be less than 500 gallons

5. Description of the vessel or facility f rom which the material was discharged (i.e., pipeline, tank, well, etc.):

The rotor shaf t ends of the hydrogen cooled turbine generator must be brought out of the gas tight enclosure and means must be provided to ,

prevent the escape of gas along the shaft. This is the purpose of the seal oil system which supplies oil under pressure to gland seals on the shaft. Oil leaving the gland seal is caught in chambers on each side of the seal, from which it is drained back to the gland seal oil system where it is cooled by a heat exchanger utilizing raw cooling water.

A tube leak in the seat oil heat exchanger resulted in high pressure oil l

being blown into the raw cooling water. The cooling water is discharged to the condenser cirsulating water tunnel leading to the plant's diffuser pond which discharges to the Tennessee River via Discharge Serial Number 024.

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6. Name . address and telep' hone number of the owner of the vessel or facility described above in (5):

Tennessee Valley Authority

Contact:

Mohamed T. El-Ashry, Ph.D.

Director of Environmental Quality Tennessee Valley Authority TVA Mailroom 126 Locust Street Building Knoxville, Tennessee 37902 615-632-2007 or FTS 856-2007

7. Name, address and telephone number of the operator of the vessel or facility described in (5) and, if different f rom (6) above, describe the relationship between the owner and operator (i.e., employee, subcontractor, lessee, etc.):

Same as above.

.8. Did the material reach any water (yes or no): YES

a. If yes, describe the first water reached and the location of this water:

The Sequoyah Nuclear Plant Diffuser Pond. Located as shown on the attached Sequoyah Nuclear site map. The Sequoyah Diffuser Pond is connected with and discharges to .tlur Chickamauga Reservoir on the Tennessee River at river mile 484.5.

b. _ State the quantity of material reaching the water described above in 8(a):

Less than 250 gallons is estimated to have reached the Tennessee

[ River.

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( c. State the quantity of material reaching the shoreline of the water ~

l described above in 8(a) which did not reach the water:

Unknown I

d. Was the water described above in 8(a), at the time of the discharge a tributary of, or physically connected to, any part or tributary of a riverine, hydrological or creek s' ystem? (yes or no): YES

e. If the answer to (d) is yes, describe or name the waterways to which the waters in 8(a) connect or flow:

Chickamauga Reservoir on the Tennessee River at river mile 484.5.

! f. At the time of discharge describe the following:

Tennessee River

1) Depth of the receiving waters Approximately 50 ft

2) Width of the receiving waterway Approximately 1500 ft

3) Flow of the receiving, water 50,000 cfs

4) Nature of the stream including The Tennessee River whether there are well defined banks. has well defined banks.

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g. If the answer to (d) is no, does the water described above in-8(a) periodically connect with or flow into any tributary or part of any riverine, hydrological or creek system? If yes, describe the finw and connection: N/A .

h. Describe any commerce connection (i.e., governmental, industrial, private, recreational, agricultural, or navigational uses) of the-waters and waterways described in c, d,.e, or g above:

Chickamauga Reservoir is a multipurpose reservoir which is classified by the State of Tennessee for use as an industrial water supply, domestic water supply, recreation, navigation, livestock watering and wildlife, fish and aquatic life, and irrigation.

9. Prior to any cican up efforts, did the mat erial cause any film or sheen,

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.i.e., discoloration or irridescent appearance, on the adjoining shorelines

.of, or surface of, any water described in Item 8? If yes, describe:

Yes, an irridescent sheen was observed on the surface of the 32 acre .

diffuser pond and the Tennessee River covering surface areas of approximately

.5 acres and less than 1 acre, respectively.

10. Prior to any clean up efforts, did the material cause any sludge or emulsion to be deposited on the adjoining shorelines of, or beneath the surface of, the waters described above in Item 8? If yes, describe: No

11. Did the discharge violate any applicable water quality standards: If yes describe:

A visible sheen as described above in 9 was npourent.

12. Date.and time of discovery that the discharge was reaching the waterway:

January 6, 1983 at approximately 3 p.m. EST

13. ' Describe in detail what actually caused the discharge:

~

Eddy - current testing of the seal oil heat exchangers' tubing resulted in data from which preliminary analysis indicated circumferential cracks in two out of five tubing bundles serving Unit 1. One bundle was removed for visual inspection wtEich revealed one through-wall circumferential l crack. The damage mechanism has been identified as stress corrosion cracking; however, the cause has not been determined. Further metallurgical analysis is required. It is important to note that similar failures in admiralty brass tubes used in raw water heat exchangers have occurred at l other plants. ,

i 14. Describe damage to the environment. For example, miles of stream affected;

( observed damage to animals and/or vegetation:

i No damage to animals or vegetation was observed. During the clean up process residual oil was observed adhering to the riprap shoreline of the

. dif fuser pond in addition to a visible sheen on the pond's surface. A l very light sheen was evident on the river below DSN 024 covering a surface area on the right overbank of less than 1 acre on January 7, 1983, There i

was no visible evidence of oil on the shoreline.

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' 15. -Describe steps taken to clean up the discharged material and to mitigate environmental damage including dates and times steps were taken:

Af ter discovery of an oil sheen on the condenser coolii.g water channel leading to the diffuser pond at 3 p.m.,an evalution of the conditions in -

the pond and the Tennessee River was made. Based on this evaluaton an.

oil absorbent boom was deployed across the diffuser pond upstream of the pond's point of discharge to the river at approximately 6 p.m. on January 6, 1983. .

A search for the _ source of the oil was on going at that time and continued until the seal oil leak was discovered and stopped at 7 p.m.~on January 6. Repair work continued until January LS when the unit one seal oil heat exchanger was placed back in service at 9:30 p.m.

On January 7 a skirted vinyl boom was installed immediately downstream of the inplace absorbent boom. Clean up then began via the use of oil

absorbent pads and surface skimming (vacuum) of floating " sludges" of oil. Oil penetrated the riprap banks of the diffuser pond increasing the difficulty of cleanup. - To date the cleanup process continues as oil bleeds out of the riprap. All contaminated oil absorbent materials have been-hagged and disposed of in the local city landfill.

16. List the federal and state agencies, if any, to which the owner or operator reported the discharge. Show the agency, its location, the date and time of notification of the official contacted:

National Response Center (Petty Officer Plowman) - Washington, D.C.

January 6, 1983, at 6:15 p.m.'EST

. Tennessee Department of Public Health, Division of Water Quality Control l (J. R. McCormick) - Chattanooga, Tennessee January 7, 1983, 1:00 p.m. EST Environmental Protection Agency (Lyle Hyde) - Atlanta, Georgia January 7, 1983, 10:00 a.m. EST

17. List the names and addresses of persons believed to have knowledge of the facts surrounding this incident:

.C. C. Mason Jim G. Mantooth Sam W. Hixson Division of Nuclear Power Division of Nuclear Power Division Nuclear Power Sequoyah Nuclear Plant 1470 Chestnut St. Tower II 1470 Chestnut St. Tower II Daisy, Tennessee Chattanooga, Tennessee Chattanooga, Tennessee

18. List the names and addresses of persons completing this report and your relationship to the owner or operator of the involved vessel or facility:

Jim G. Mantooth - Employee Tennessee Valley Authrotiy Division of Nuclear Power 1470 Chestnut Street Tower II Chattanooga, Tennessee 37401

19. List other information which you wish to bring to the attention of the EPA. For example, number employed by the firm; contractural agreement for oil material discharge responsibility.

NONE p - -

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20. -Measures taken by your company to prevent future discharges:

During future outages eddy current testing will be performed in an effort to predict tubing failures enabling TVA to take the necessary steps to prevent future oil leakage.

If potential failures are indicated by the testing, the heat exchangers

'will.be retubed with 316 stainless steel which is less susceptible to stress corrosion cracking.

The above answers are true to the best of my knowledge and belief.

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