ML20085M588
| ML20085M588 | |
| Person / Time | |
|---|---|
| Site: | Surry  |
| Issue date: | 11/11/1991 |
| From: | VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.) |
| To: | |
| References | |
| RTR-NUREG-1437 AR, S, WM, NUDOCS 9111110202 | |
| Download: ML20085M588 (4) | |
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Attachment B Surry Power Station (SPS)
AQUATIC RESOURCES QUESTIONS
- 1. Post IIconsing modilications and/or changes in operallons of Intake and/or discharge systems may have allered the offects of the power plant on aquatic resources, or may have boon made specIIIcally to mitigate Impacts that were not anticipated in the design of the plant.
Describe any such modifications and/or operational changes to the condenser cooIIng water Intake and discharge systems since the Issuance of the Operating License.
Following the licensing and commercial operation of the Surry Power Station a new concept in travelling screens was designed and developed for removal of larger aquatic organisms prior to their entrainment / impingement into the station's condenser cooling water system. The final design was patented and has been demonstrated to both protect the aquatic resources and the power station cooling systems.
The *Ristroph" screens resulted from research into an apparent fish impingement problem at SPS, especially during spring runs of anadramous fish la the James River. The scroons effectively carry the fish out of the intake water, while the fish remain immersed in buckets of water attached to the screen, and are transported to a remote location away from the intakes. Early studies demonstrated an above 90% survival rate for all species of fish.
- 2. Summarize and describe (or provide documentation of) any known Impacts on aquallo resources (e.g., fish kIIIs, violations of discharge permit conditions) or National Pollutant Discharge Eliminallon System (NPDES) onforcement actions that have occurred since Issuance of the Operating License. How have these been resolved or changed over time? (The response to this question should whether impacts are ongoing or were the result of start up problems that were subsequently resolved.)
The operation of SPS has had no significant impact on stream aquatic resources.
Fish kills have been minor and sporadic in nature and generally limited to the immediate thermal discharge canal area. The majority of NPDES violations have been the result of either minor oil spills reaching storm drainage, or an experimental UV disinfection system which has been discontinued. Over seven years of physical, chemical, and biological data were examined and incorporated into our 316(a) demonstration study. The resulting conclusion was that plant operations were not causing any significant environmentalimpact.
- 3. Changes to the NPDES permit during operation of the plant could Indicate whether water quality parameters were determined to have no significant Impacts (and were dropped from monitoring requirements) 9111110202 911111 N$7 f* pga Page 6 of 12
1 or were subsequently raised as a water quality Issue. Provide a bilet summary of changes (and when they occurred) to the NPDES permit for the plant Issuance of the Operating License.
There have boon few changes to the Surry NPDES permit resulting from issues involving water quality parameters. Storm water pH limitations have been modified to account for acidic rain.
- 4. An examinallon of trends in the effects on aquallc resources monlloting can Indicate whether Impacts have Increased, decreased, or remained relatWely stable during opetallon. Describe and summarize (or provide documentation of) results of monitoring of water quality and aquatic blota (e.g., related to NPDES permlls, Environmental Technical Specificalloos, site specIIIc monitoring required by federal or state agencloy). What trends are apparent over Ilme?
Extensive studies were conducted both preace'aligwly and post operationally in the James River near SPS in the seventies. n e overall conclusions rerhed Indicate that the operation of SPS is not resultirg in any appreciable harm to the aquatic blota of the James River.
In addition, early records of the required Environmental Technical Specifications (ETS) document trends of relative stability in the aquatic ecosystem around SPS (recognizing that this system is at the saltwater / freshwater interface and subject to natural annual environmental perturbations). Because of the accumulated results of the aquatic studies Indicating little or no effect, the ETS requirements for aquatic monitoring were removed from the operating requirements for SPS in the late seventies.
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- 5. Summarize types and numbers (or provide documentation) of organisms entrained and impinged by the condenser cooling water system since issuance of the Operating License. . Describe any seasonal patterns associated with entralnment and Impingement.
How has entraInment and Impingement changed over Ilme?
Impingement and entrainment numbers and types are reflective of the species of fish in the James River (reference 316(a) report included with this survey response). Seasonal variations in impingement numbers are generally highest in the spring of the year due to the spawning runs of anadramous fish.
- 6. Aquallo habitat enhancement or restorallon efforts (e.g., anadromous fish runs) durb1g operation may have enhanced the blological communities In the vicinity of the plant. Alternatively, degradallon of habitat or water quality may have resulted In loss of blologIcal resocices near the slie. Describe any changes to aquatic habitats (both onhancement and degradallon) in the vicinfly of the power plant since the Issuance of the Operating License including those that may have resulted In different plant Impacts than those Inltlally predicted.
The only significant changes that have been made are identified in the tasponse to item 1 of this section.
. 7. Plant operations may have had posillve, negative, or no impact on the use of aquatic resources by others. Harvest by commercial or recreational fishermen may be constrained by plant operation.
Alternatively, commerclal harvesting may be relatively large compared with fish loss caused by the plan t. Describe (or provide documentation for) other nearby uses of waters affected by cooIIng water systems (e.g., swimming, boating, annual harvest by commercial und recreational fisherles) and how those impacts changed since the Issuance of the Operating License.
The operation of SPS has been demonstrated to have no negative offects on the aquatic ecosystem; therefore, basically no changes in aquatic resource usage have been noted. Because of its location, this particular stretch of the James River has limited recreational and commercial resource value when compared to the upper and lower reaches of the river. The placement of the discharge canal has resulted in the protection of the commercial oyster beds just downstream of the intake structure. The discharge canal coincidentally has also proven to be both a valuable commercial and recreational catfish fishery. .
- 8. Describe other sources of Impacts on aquatic resources (e. g. ,
Industrial discharges, other power plants, agricultural runoff) that could contribute to cumulallve impacts. What are the relative
- contributions by percent of these sources, including the contribullons due to the power plant, to overall water quality degradallon and losses of aquatic blota?
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There are no industrial, municipal or other power station influences in the immediate vicinity of SPS.
- 9. Provide a copy of your Section 316(a) and (b) Demonstrallon Report required by the CIcan Waste Act. What Section 316(a) and (b) determinations have been made by the regulatory authorilles?
A copy of the 316(a) and 316(b) reports are included in this package.
Both 316(a) and 316(b) reports were accepted by the Virginia Water Control Board, i
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i Attachment B Surry Power Station (SPS)-
SOClOECONOMIC QUESTIONS
- 1. To understand the impollance of the plant and the degree of Its socloeconomic Impacts on the local reglon, estimale the number of permanent workers on slie for the most recent year for which data are avallable.
For the year ending December 1989, the Surry Sito employed betwoon 555 to 600 people. In fall of 1989 the Company completed a resource allocation program, and the Station's staffing increased by 35 40 additional people. This number does not include Corporate support personnel.
For the current year (1990), average manpower levels have increased to 625 640 permanent positions due to additional authorized staffing positions and filling vacant positions.
- 2. To understand the importance of the plant to the local region, and how
- that -has changed over time, estimate the average number of permanent workers on site, in five year increments starting with the issuance of the plant's Operating License. 11 possible, provide this Informallon for each unit at a plant site, The following numbers are five year averages for the permanent staff at the North Anna sito.
1986 - 1990 585 1981 1985 525 1976 1980 340 1972 1975 210'
- Surry 1 at 100% power 5/25/72, Surry 2 at 100% power 1/29/73. The staff levelin 1974 included approximately 120 people targeted for the North Anna " operations" staff, Page 10 of 12
- 3. To understand the potential Impact of continued operation for an l additional 20 years beyond the original IlconsIng term, please provide the following three cases:
A) a typical planned outage B) an ISI outage; and C) the largest single outage (In terms of the number of workers involved) that has occurred to date. An estImnte of addlllonal workers involved (for the entire outage and for each principal task), length of outage, months and year In which each occurred, and cost. Also, es timate occupational doses recolved by l permanent and temporary workers during each principal task.
See attached Table " Outage Manpower and Cost Estimates".
- 4. To understand the plant's fiscal Importance to specific Jutlsdictions, for the 1980, 1985, and the latest year for which data are available, estimate the entire plant's taxable assessed value and the amount of taxes to the state and to each local taxing jurisdiction.
The Surry Power Station Units 1 & 2 are located in Surry County, Virginia.
12BD 1Efl5 1920 Assessed value $452 M. $963 M. $1,143 M.
Property taxes $2.1 M. $3.9 M. $5.7 M.
NOTE: Figures are for total county, however, the power plants make up the vast majority of assets in the county.
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OUTAGE MANPOWER AND COST ESTIMATES .
Outage Workers Principal When/ Occupational Outage involved Tasks Length Dose Cost Comments CASE A: Typcal Planned
- 600 permanent (1) Refuekng Dec 1990 / Total outage
- Informaton supbed for Outage - Surry (1)O&M - 20 m:llon Unit 1* "
- P " I (2) Mantenance 60 days
- goal 450 man-rem (2) Cacda!- 19 mdion upcommg Fa5 Outage (3) Steam Generator - Ref uell (pnmarty c:n- whch should reflect
- 300-500 Inspectons 50 man 4em structen costs typcal for future outages contractor personne! - SG Actnnties: for plant mods & Normal scheduled (4) Plant Mods for prewage and 75 man 4em :ncludes pre- outage runs from 48-60 outage work - Maintenance & outage prepa- days Mods- raton)
, 325 mannwn CASE B:ISIOutage - - 575 pe'manent (1) Refueling Aprd 1997 / Average for two (1) OaM - ** 10 year tSt work was
'o North Anna Und 1 site personnel (2) Marntenance 71 days outages : 1987. 17 ms spread over 1wo outagee
'$ to year inspecton (3) ISI 750 man-rem 1989. 23 m, en 17.19 outage was o - 500 contractors (4) Steam Generator Feb 1989 / -ISI actnnt.es: entended due to enten-
, ~ personnel at inspectons 140 days ** 90 man 4em (2) Capetar - sue work on steam lN outage peak (5) Plant Mods - SC Actnrmes:
100 man-rem 1987. t5 me 1989. 23 me ganerators due to a faded plug and leakrg O
- - Refuehng: tube. Typcal131 s 50 man-tem outage o plannad for N - Maintenance & 75 days.
Mods:
500 man-rem C ASE C: Largest Sengte Approomately (1) Steam Generator Feb 1979 / SG Replacement Capital Cost-Outage - Surry 1600 covered a!! work Replacement 185 months 2.140 man-rem Und 2 - Steam at as peak. Thrs number (1) $94 rn,non -
Generator rncludes approranately G) IEB 79-02 and Balance of Work SC Replacement Replacement 400 permanent see 79-14 seismc 560 man-rem- (2) 595 minen -
Outage personnet. Mods Balanca of outage mods (3) Short term TMI Mods . 05M Cost.
!4) P; ant bacuts [t) Total durry 1979 a 4
1980 - 2t neon Assuma 50% outago relatad cost
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