ML20086P423
| ML20086P423 | |
| Person / Time | |
|---|---|
| Site: | Sequoyah  |
| Issue date: | 09/14/1991 |
| From: | Joshua Wilson TENNESSEE VALLEY AUTHORITY |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| NUDOCS 9112270018 | |
| Download: ML20086P423 (6) | |
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k December 16 1991 I
U.S. Nuclear Regulatory Commission _l AT3: Docuent Control Desk l
Washington. D.C. 20555 Centlement In the Matter of ) Docket Noa 50-307 Tennessee Valley Authority ) $0-309 SEQUOYAH NUCLEAR PLANT (SQN) - AN%'AL ENVIRONMENTAL OPERATING REPORT The en:losure contains the Annual Environmenta! Operating Report for SQN for the period from September 15, 1990, through September 16, 1991. This report is submitted in accordance with Appendix 3. Technica'. Specification 5.4.1.
Please direct questions concerning this issue to W. C. Ludwig at
!- (615) 343-7460.
Sincerely, ,
{'f_]u,,5rL
{.L. Wilson Enclosures cc: See page 2 i
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l 4-U.S. Nuclear Regulatory Conelsalon l Page 2 1
December 16, 1991 cc (Enclosures)t ;
Mr. D. E. 1.aBarge, Project Manager i U.S. Nuclear Regulatory Corvnission '
One '4hite Flint. North
- 11555 Rockville Pike
. Rockville, Maryland 20852 NRC Resident inspector Sequoyah Nuclear Plant 2600 :gou_ Terry Road Soddy Delsy,_ Tennessee 37379 <
l Mr. _ S. A. Wilson Project ":hief ,
i U.S.- Nuclear Regulatory Coimission Region II. I 101 Marietta Street. .W. suite 2900
- Atlanta. Georgia 30323 t
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ANWAL ENVIRONMENTAL OPERATING REPORT SEPTEMBER 15. 1990 THROUGH SEPTEMBER 14 1991
- 1. In accordance with the Environitental Technical Specification (ETS) 5.3.C. I the facility design and operational changes were reviewed for the i potential effect on the environmeni.- A stady Jf the facility design and operational cnanges trom September 15. 1990 through September 14 1991, that could have affected the environment was performed. Projects i considered to 'aave pctential' impact on the environment included (1) those involving excavation, construction, or asbestos removalt and (2) those resulting ir new or increased discnarges to outside drains. The study identified & iocamented a casis that the design and operational :hanges did not invciva an unreviewed environmental question. A :cpy of this study is attacaed.
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l 2. _In accordance with-ETS 3.4.1. the following reperts are-specified in SQN
! National Pollutant Discharge Elimination system Permit No. !N0026450, and !
L = have been previously submitted to the NRC:
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Report _on results of Nonradiological Aquati: Monitoring Progr un - Rotenone Studies, submitted June 28. 1991.
Report on Investigt son of Plant Impact on Dissolved Oxygen Levels in Chickamauga Reservoir, sul.~itted September 27, 1990.
- 3. The following information is provided as required by EIS 3.4.11
- a. 'All ETS noncompliance: and the corrective actions taken to remedy them. '
There were no ETS noncompliances during the reporting period,
- b. . Changes made to applicabla State and Federal permits and certifications:
On January- 25, 1991, the 'hattanooga-Hamilton County Air Pollution Control Bureau issued the following permits:- Certificate of Operation Permit No. . 4150-3070C604-161-for the Maintenance Insulators Shop and _
Certificate of operation Permit No. 4150-30700S04-071 for the Modifications Insulators Shop.
c.. The changes in the station-design-that could involve a significant
- environmental impact or change the findings of the Final-Environmental' Statement.
As concluded in the attachment, there have been no facility design or-operational changes-since September 15. J990..that.have resulted in an-unreviewed environmental question.
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- d. All nonroutine~ reports submitted in accordance with ETS Section 4.1. l On March 22, 1991, a slight oil sheen was observed in the river around }
a TVA dredge barge moored at.the essential raw cooling water station.
Telephone reports were made to the State of Tennessee and the National -
Response Center. Written reports were not required. ;
- e. Changes in approved ETS. i i
There were no changes made during this report period.
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- ATTACHMENT TO THE ENCLOSURE STUDY )F SEQUOYAH hTCLEAR PEANT (SQN)
DESIGN AND OPERAi!CNAL CHANCES BETWEEN SEP! EMBER ;$, 1990, AND SEPTEMPER ;4, 1991 FOR EFFECTS ON THE ESTIRONMENT The f acility design and operational changes and major aaintenance and modif!:ativn projects during thin report period have teen reviewed for potentia'. to affect the envir:nment as described telow. The criteria used to identif y those projects with a potential f ce environn, ental ef fects included (1) those involving excavation, construction, or asbestos removal; and (2) those resulting in new or increased discharges to outside crains.
- 1. The following projects met the atove :riteria for potential environmental effects and were reviewed for potential impact en the envircnment a- New $88988 A total of ^53 new prcject packages were issued during this report period. Sixteen ot ' Lese projects nad some patential 'or environmental ;'mpact. However, all of Lese projets ere esigned -
- cmply with regulatory permitting processes and none o f i:.en invclved any environmental impacts that were not reviewed in :ne riginal environnental impac t s t a t erre n t .
These projects are
- Refurbish four Unit 2 Governor Valves Unit 1 turbine Asbestos Re'aoval
- Unit 1 Feedwater Heaters
- Unit 2 Feedwater Heaters
- Condensate Chemical Feed System
- Asbestos containing Materials Inspection Program
- Morpholine addition to Secondary Steam system
- Unit 2 Moisture Separator Reheater
- Unit i Steel Centainment Vessel Penetration Insulatiens
- Unit 1 Steam Generator Cleaning
- Unit 2 Steam Generator Cleaning
- Essential Raw Cooling Water Channel Silt Removal
- - Unit 1 Main Turbine Steam Chest t
- Unit 2 Main Turbine Steam Chest ;
- Makeup Water Reverse Osmosis Unit
- Turbine Building Roof Repair
- b. Special T,_e.gt3 There were no special tests conducted during this period that met the !
environmental impact criteria. !
- c. Temporary Alterations
.i There were no temporary alterations made during this period that met !
the environmental impact criteria.
- 2. _-Design-and operational changes with a potential for causing new or-Increased discharges 's outs'.de drains, including runoff from excavation, l
_ were reviewed and determined to be within the scope of the SQN National i' l
L Pollutant Discharge ilimination System (NPDES) permit.
3i Monthly disebarge monitoring-reports submitted as required by the SQN i,_
NPDES permit were reviewed. Permit ex ursions were attributed to either natural causes, equipment m1 functions or operational errors and determined to te within the purview of the NPDES permit and associated t environmental evaluations.
The cleanup of polychlorinated biphenyl (PCB),_ discovered in the low "
volume vaste treatment pond effluent in October 1998, is in progress. The initial discovery of PC!s was reporte in a notification of noncompliance d +
(NON) with the NPDES permit discharge-limit in the October 1999 Discharge '
Monitoring Report (DMR). ;3 mall quantities.of PCB have been discharged during this cleanup period in accordance with *.he cleanup plan approved by the regulators. NRC has been previously provided copies of the 1988 DMR and NON and subsequent correspondence regarding the cleanup agreements. ,
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In summary, there have been no facility design or operational changes'from September 15, 1990, to September 14, 1991, that-have resulted in an unreviewed environmental question.-
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