ML20073G991
| ML20073G991 | |
| Person / Time | |
|---|---|
| Site: | North Anna  |
| Issue date: | 12/31/1990 |
| From: | Stewart W VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.) |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| 91-249, NUDOCS 9105060111 | |
| Download: ML20073G991 (14) | |
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.W TiltOINIA }$1.I:0T)(10 AND l'OWillt CObll%NY H ICil>tOND, YlltOIN! A 202 Ol April 30, 1991 United States Nuclear Regulatory Commission Serial No. 91249 Attention: Document Controi Desk NAPS /JHL Washington, D. C. 20555 Docket Nos. 50 338 50 339 License Nos. NPF-4 NPF 7 Gentlemen:
VIRGINIA ELECTRIC AND POWER COMPANY liQRTH ANNA POWER STATION UNIT NOS.1 AND 2 ANNUAL ENVIRONMENTAL OPERATINC REPORT Pursuant to Section 5.4,1 of Appendix B, Environmental Protection Plan, enclosed is the Annual Environmental Operating Report for North Anna Power Station Unit Nos.1 and 2 for 1990.
If you have any questions or require additionalinformation, please contact us.
Very truly pours, d
W. L. Stewart Senior Vice President Nuclear Enclosure i cc: U. S. Nuclear Regulatory Commission l Region ll
-101 Marietta Street, N. W.
Suite 2900 Atlanta, Georgia- 30323 Mr. M. S. Lesser NRC Senior Resident Inspector North Anna Power Station i
9105060111 901231 DR ADoCK 0500 ,G d p i
.* 4 VIRGINIA EliECTRIC AND POWER COMPANY NORTil ANNA POWER STATION UNITS 1 AND 2 1
APPENDIX H ;
ENVIRONMENTAL PROTECTION PLAN 1990 ANNUAL REPORT DOCKET NOS. 50-338 AND 50-339
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,I_N_TRODUCTI ON This 1990 Environmental Operating Report for the North Anna Power Station is submitted by Virginia Electric and Power Company as required under Section 5.4.1 of Appendix B, Environmental Protection Plan (EPP)'.
The objectives of the EPP are to verify that the power station is operated in an environmentally acceptable manner; to coordinate NRC requirements; and maintain consistency with other federal, state and local requirements; and to keep NRC informed of the environmental effects of facility l
construction and operation. During 1990, no significant adverse environmental impact occurred as a result of the operation of North Anna Power Station, Units 1 and 2. Aquatic issues are addressed in the licensee's NPDES permit number VA 0052451 issued by the Virginia State l Water Control Board and the NRC relies on this agency for regulation 1
of matters involving water quality and aquatic biota. Listed below are I the summaries and reports as required under Section 5.4.1 of the EPP. ;
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PLAN'i DESIGN AND OPCRATION (SECTION 3.1) l l
There were no changes in station design or operation proposed in 1
'1990 that involved a potentially significant unreviewed environmental issue.
TRANSMISSION LINE RIGilT OF WAY llERBICIDE MANAGEMENT l (SECTION 4.2.1)
The herbicide, Spike SG, was used for brush control around tower i foundations on the North Anna - Louisa and North Anna Ladysmith 500 KV lines during 1990. No herbicides were used for brush control on the North Anna -
Midlothian 500 KV lines or the North Anna -
Gordonsville ]
-230-KV lines during 1990, -
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. l TRANSMISSION LINE RIGIIT OF WAY EROSION CONTROL INSPECTION (SECTION 4.2.2)
Erosion inspections of rights of way were conducted for the North Anna - Midlothian, North Anna -
Louisa, and North Anna -
Ladysmith 500 KV lines and on the North Anna - Gordonsville 230 KV line on July 27, 1990. Locations were recorded of creded areas on the North Anna Gordonsville, North Anna - Midlothian, North Anna - Louisa and the North Anna - Ladysmith lines. Most of these eroded areas were caused by vehicle travel along the right of way. All areas were disced, fertilized, seeded and mulched and additional straw bales were installed to prevent erosion.
STATION SITE EROSION CONTROL (SECTION 4.2.2)
An on-site erosion -control inspection was performed at North Anna Power Station by the Civil / Design Engineering Department beginning
-November 7, 1990 and ending on December 4, 1990, according to Periodic Test Procedure 1-PT-9.3, Erosion Control Inspection -
Station Site.
Although erosion was minor or non-existent in most areas, several sites were found where slight erosion, or potential erosion, problems needed
- to be addressed. Erosion and undermining were noted around paved drainage ditches in_two locations, behind the main station parking lot and adjacent to the recreation area. Soil-and grass were found to be impeding flow in _the paved drainage ditch on the South side of the unit three restoration area. Also, a drainage pipe running under the road in the vicinity of the discharge canal was found to be crimped and impeding l flow.
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4 STATION SITE EROSION CONTROL (SECTION 4.2.2) (cont.)
Erosion was noted around the discharge line in the unit three restoration area, and the newly installed drain pipe in the sedimentation pond was found to be leaking, causing erosion at its base. Erosion was also found around the access pipe southwest of the Security and Construction Building; outside the security fence betisen the fence and drainage ditch south of the station, and around the rainage ditch on the north slope of the southwest emergency drainage ditch. Finally, soil around the fire sheds was determined to be improperly compacted to prevent erosion.
Repairs have been initiated for the ten items mentioned above. The Rad Waste facility in the Unit 3 and 4 area is partially constructed and presently on hold. The adjacent flood protection dike has been completed.
j NONCOMPLIANCE (SECTION 5.4.1) l There were- no Environmental Protection Plan occurrences of j
noncompliance during 1990. There was, however, one situation which l
- occurred during 1989 but, was not discovered until 1990. The NRC was
! not furnished a courtesy copy of an NPDES permit renewal application I
to the Virginia Water control Board. A copy of this correspondence has aince been submitted to the NRC and corrections have been made to the reporting procedure to ensure this problem does not occur again.
NONROUTINE REPORTS (SECTION 5.4.2) l l Enclosed are copies of letters detailing the occurrence of two unusual discharges (pages 5 - 8) and one historical oil spill (pages 9 - 12)
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9 NONROUTINE REPORTS (SUCTION 5.4.2) (cont.)
which were filed during 1990 in which appropriate state agencies were notified. There were no NPDES exceptions during 1990. Noise of the reported events resulted in a significant environmental impact causally related to station operation, l
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COR 14 j
Unusual Discharge North Anna CERTIFIED MAIL RETURN PECEIPT REOUESTED July 23, 1990 Mr. William L. Kregloe Virginia Water control Board Valley Regional Office 116 North Main Street P. O. Box 268 Bridgewater, Virginia 22812 Re: Unusual Discharge at North Anna Power Station
Dear Mr. Kregloe:
on July 19, 1990, partially processed water from the Reverse Osmosis (RO) system at North Anna was directed to a storm drain in error by our contractor, Ionics, corp. Upon discovery the discharge was immediately discontinued and you were notified. This letter confirms that conversation.
As you know, the RO uystem was recently placed in its permanent configuration. Discharges from the system are included in the VPDES permit soon to be reissued. Backwash from the system is discharged to the settling pond, the RO reject, after relocation, is directed to the discharge tunnel, and a cold weather drain line is discharged to Lake Anna. It was thought that all discharges were accounted for. Investigation revealed, however, that partially processed water that does not meet stringent requirements for plant makeup is blown down from individual resin beds on an intermittent basis when the resins are spent and require
-replacement. This blowdown has apparently occurred twice since the reconfiguration in late June, .on July 10 and July 19.
Approximately 500 gallons of blowdown were discharged on July 10 and perhaps 200 gallons on July 19 before the discharge was interrupted.
The discharge properly should be included as part of the RO reject.
Alteration being evaluated.
of the piping to include this discharge is currently The outlet to the stormdrain has been permanently capped and no further discharge is anticipated. We will inform you when a permanent solution has been implemented.
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Mr. William L. Kregloe July 23, 1990 Page 2 If you have any further questions regarding this incident, please contact my office.
Sincerely, hh f" .
1 B. M. Marshall, P.E. fy Manager Water Quality cc: U. S. NRC Docket No. 50-338/50-339 101 Marietta Street, NW Suite 2900 Atlanta, Georgia 30323 U. S. NRC Attn: Docket Control Desk Docket No. 50-338/50-339 Washington, D.C. 20555 NRC Senior Reside.it Inspector Docket No. 50-338/50-339 North Anna Power Station bc: Mr. E. W. Marrell Mr. J. L. Wilson Mr. G. E. Kane Mr.
,gg K. N. Kappatos g p Mr. J. A. Stall hi7y3-10 Mr. W. A. Thornton Mr. A. H. Stafford Mr. M. C. Hensley Mr. A. C. Cooke Mr. O. P. Sloan Mr. K. L. Williamson Mr. P. A. Kemp Mr. M. F. Kadlubowski Ms. G. R. Knauer6 @
File COR 14 - Unusual Discharge (6)
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COR 14 - Incident Reports CERTIFIED MAIL RETURN RECEIPT PEOUESTED November 13, 1990 Mr. William L. Kregloe Virginia Water control Board Valley Regional Office 116 North Main Street P. O. Box 268 Bridgewater, VA 22812 RE UNUSUAL DISCHARGE OF PURIFIED WATER -
NORTH ANNA POWER STATION
Dear Mr. Kregloe:
This letter : confirms the report made to you by telephone on November 9,.1990, regarding a discharge of water from the Reverse Osmosis System at North Anna Power Station. Contact with your office was first made at approximately 9:00 a.m.
The discharge was discovered by contract station personnel at approximately 2:30 a.m. on the 9th. A flangc on the discharge line broke causing purified water to overflow a drain inside the treatment trailer and flow to a storm drain. It is estimated that the flange probably broke around 12 o' clock midnight and discharged some 10,500 gallons of water to Lake Anna. Upon discovery of the
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discharge, pumping was shut down and repair of the flange initiated.- Repair was complete within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.
No adverse environmental impact was expected or observed as a result of this discharge. To prevent recurrence, lines will be inspected more frequently in the future. If you have any questions regarding this incident, please contact this office.
Sincerely,
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hn ,b p
Y M. Marshall, P.E.
- j. Manager Water Quality l
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Mr. William L. Kregloe November 13, 1990 Page 2 1 l
co: U.S. NRC l
Docket No.- 50-338/50-339 101 Marietta St., NW Suite 2900 t Atlanta, GA 30323 U.S. NRC l Attn: Docket Control-Desk Docket No. 50-338/50-339 Washington, DC 20555 NRC Senior Resident Inspector Docket No. 50-338/50-339 North Anna Power Station bo: -E. W. Harrell J. L. Wilson G. E. Kane K. N. Kappa *os W. A.'Thornton A. H. Stafford A. C. Cooke P. A. Kemp M. F. Kadlubowski G. R. Knauer l
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April 23, 1990 L
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-Mr. Larry M. Carpenter Environmental Specialist Sr.
Valley Regional Office Virginia State Water Control Boaro P.O. Box 268-Briogewater, Va. 22812 RE:
Subsurface Leak of Fuel Oil at North Anna Power Station
Dear Mr. Carpenter:
On April 19, 1990
-leak at North Anna PowerMr.- W. A. Sorouse of my staff reported a historical fuel oil S ta tion. This letter documents -the c
' conveyeo at that informa tion you- ano Mr. Sprouse on Aor11 20. -1990. time to Mr. J. D. Green ano the onone L ~ 0n_ May 27,1987, station personnel observeo oil seeping to the grouno surface
! above an undergrouno truck unloading _ stat 1on.fuel oil line wnich feeos an aboveground tank from a tank '
- i. The line was repaireo:and returned to service.
The line- was removed from_ service when. on June 5,1987, evidence of possible another leak was observed.
The line has been out of service since that time and came to this Department's attention when we were asked 1to review plans for L replacement of the pipe.- Stat 1on personnel do not believe the oil reached the grounewater nor grounowater, are were they aware at the time that releases wnich may reach the #
reportable.
Sumo System, collects A subsurface drainage system,_ known asi the Mat anc removes groundwater from arouno the reactor-containment structures. Grounowater pumped from this system nas not shown evidence _ of fuel c11 contaminat1on.
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At_this-time, we are uncertain of exactly how much fuel oil was involved.- Per l' your; request, we will determine if any of the oil -reacheo grounowater and will L
keeo_you informed of further developments.
Please contact Wes Sprouse at (804)273-3552 i if you have any further questions.
Sincerely, i
B.,M. Marshall-P.E.-
Manager, Water Quality o
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NAPS /ENV 43/ GEN August 29, 1990 Mr. Larry M. Carpenter Environmental Specialist Sr.
Valley Regional Office Virginia Water Control Board P. O. Box 268 Bridgewater, VA 22812 RE: SUBRURFACE HYDROCARBON ENVESTIGATION - NORTH ANNA POWER STATION
Dear Mr. Carpenter:
On July 6, 1990, Wes Sprouse of my staff informed you of our efforts to install observation wells for the above referenced project. This letter is to document that information and to report the status of the fuel oil line replacement project.
Af ter reviewing site drawings of the underground structures in the vicinity of the leaks, Virginia Power personnel performec a soil gas survey in an attempt to determine the extent of contamination.
The survey indicated that some degree of contamination exists at the western end of a concrete slab, north of the clarifier building (see attached sketch). Following further review by the station attempts were made to place two borings downgradient of the area indicated by the soil gas results. The crew made six attempts to place borings; however, each encountered auger refusal on concrete and rock. The deepest boring reached seven feet, groundwater encountered. with no of approximately five feet.
A layer of clay was identified at a depth The possible locations of the borings are limited by the layout of underground utilities at the site. As there were no other appropriato locations available, we made no further borings.
The station had planned to replace the line in 1990: however, material availability and schedule considerations dictate that the project be postponed until Spring of 1991. At that time the line will be excavated and we will be able to determine the extent of the contamination. We feel that the potential for migration is minimial given the site geology: a confining layer of clay below the pipeline, underlain by bedrock. We will contact you next Spring when the project commences.
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Mr. Larry M. Carpenter August 29, 1990 Page 2 If you have any questions or desire additional information, pleast contact Wes Sprouse at (804) 273-3552.
Sincerely, ,
"as J ,,o B. M. Marshall, P.E.
Manager Water Quality cc: U.S. NRC Docket No. 50-338/50-339 101 Marietta Street, NW Suite 2900 Atlanta, GA 30323 U.S. KRC Attn: Docket Control Desk Docket No. 50-338/50-339 Washington, DC 20555 NRC Senior Resident Inspector Docket No. 50-338/50-339 North Anna Power Station bc: E. W. Harrell - INN /2E J. L. Wilson - INN /2E G. E. Kane - NA R. O. Enfinger - NA K. N. Kappatos - ODEC W. A. Thornton - INN /2E A. H. Stafford - NA A. C. Cooke - NA - /&(
P. Ar Kemp - NA '7 M. F. Kadlubowski G. R. Knauer J. W. White W. A. Sprouse, Jr.y#)
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