ML21127A155

From kanterella
Jump to navigation Jump to search
2020 Annual Environmental Operating Report (Non-Radiological)
ML21127A155
Person / Time
Site: Beaver Valley
Issue date: 04/30/2021
From:
Energy Harbor Nuclear Corp
To:
Office of Nuclear Reactor Regulation
Shared Package
ML21127A168 List:
References
L-21-135
Download: ML21127A155 (30)
v • d • e


Text

Enclosure B L-21-135 2020 Annual Environmental Operating Report (Non-Radiological)

(Report follows)

I RTL# A9.630F I ENERGY HARBOR NUCLEAR CORPORATION BEAVER VALLEY POWER STATION I

I I

I I

I I

I I

I I 2020 I ANNUAL ENVIRONMENTAL OPERATING REPORT I NON-RADIOLOGICAL UNIT NOs.1 AND 2 I LICENSES DPR-66 AND NPF-73 I

I I

I I 5.1.1 BEAVER VALLEY POWER STATION I ENVIRONMENTAL & CHEMISTRY SECTION I

Technical Report Approval I

I 2020 ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT (Noa-Rad~

I UNIT NOs. l AND 2 I i,ICENSES DPR-66 AND NPJi'-73 I

Preparedby: (peroaL.Laap@E-,nglD Date: 11-20-2028 I -

lin,pued "71 Rqn _,,. fr ~ ~ 3:§-2821 I

Reviewed by: pennlt Lebee fJ':'7 {__ Date: 4/1'( (l.oy I

ll,Nlewecl by: BA>beit Wlnfmf.4#.:c,/;Ji.t>-~

I Appnm,dby: t!e!!IX*rk ~Dalo!

I ' /

I I

I I

I

I TABLE OP' CONTENTS I

1.0 EXEC'UTIV£.

SUMMARY

      • -******************--******,***********-**"****..*****-**-************-***********-****************1 I Ll 1.2

~O~U<: ;'I'I'ON *******-********---~********-**-******-**-*-************************--***-* ............................... _,.1

SUMMARY

& CONCLUSIONS _....... --***--*****-****************-****** ............................................. 2 I 1.3 L4 ANALYSIS OF SIGNIF'ICANT EN'VIRONMl:NTAL CHAN"GE ......................................... 2 AQ.;Ari c ~o~~~ P R ~ ~ SOMMARv...................................2 I 2.0 3.0 ENVIRO NMENTA L PROTEC TION PLAN NON-COMPLIANCES ......................................3 CHANGES INVOLVJI',G UNREVI EWED ENVIRO NMENTA L QUESTIONS .................... 3

, l I 4.0 S.0 NONR.OUTINE ENVIR.ON11ENTAL REPORT'S ...................................................................... 3 AQUATIC MONI1'0 RING PROORAM... ...................................... m .......................................... 3 I 5.1 5.2 SITE D:ESCRIP'l'ION ................................................................................................................. 3 MEIHOD S .................................................................................................................................... 4 5.2.1 I 5.2.2 Corbic1,la Demlty Determlnatioll8 for Coolbag Tcnver R.eseffol n ..................................4 Corblc,,/a Juvenile Monitorh lg ...........................................................................................5 5.1.3 Zebn MIIINI MonltorlJII ...................................................................................................5 I s.2.4 Rel:)Cl~ ************************-*******************--**.. ***********************************-*****-**************-****************6 5.3 AQUATIC MONITORIN"G PR.OG RAM~ RESULT'S ..................................................... 6 I 5.3.1 CorblcMla Monftorh lg Prognm ..........................................................................................6 5.3.2 Corbicllla Javealle Mollftorbig .............:......,........................................................................8 I 5.3.3 Zebn Muael Moaftoriag Prognm ................................................................................... 8 6.0 ZEBRA MUSSEL AND CORBIC ULA CONTRO L ACTIVIT IES ........................................... 9 I 7.0 REF'EREN"CES .............................................................................................................................. 11 8.0 TABLES .........................................................................................................................................13 I 9.0 10.0 FIGURES ....................................................................................................................................... 15 PERMI1'S .......................................................................................................................................24 I

I I

I I i I

LIST OF' TABLES I

5.1 Beaver Valley Power Station (BVPS) Sampling Dates for 2020

. I 5.2 Unit 1 Cooling Reservoir Monthly Sampling Corblcula Dms

. from BVPS.

ity Data for 2020 I 5.3 Unit 2 Cooling Reservoir Mon1hly Sampling CorbicuJa Dmsi BVPS.

ty Data for 2020 ftom I I

I I

I I

I I

I I

I I

I I

ii I

I

I LIST OF FIGURES I 5.1 Location of Study Arca, Beaver Valley Power Station Shippingport, Pamsylvania I BVPS.

5.2 Comparison of Live Corbicula Clam Density Estimates Among BVPS Unit 1 I Cooling Tower Reservoir Sample Events for Various Clam Shell Size Groups, 2020.

I 5.3 Compari.,nn of Live Corbicula Clam Density Estimates Among Unit 2 Cooling Tower Reservoir Sample Events for Various Clam ShcJ.l Size Groups, 2020.

I 5.4 Comparison of Live Corbicula Clam Density Estimates Among Intake Structure Sample Events for Various Clam Shell Siz.e Groups, 2020.

I 5.5 Water Temperatorc and River Elevation Recorded on the Ohio Rivel' at the BVPS Intake Structure, During Monthly Sampling Dates, 2020.

I 5.6 Density of Zebra Mussel Veligas (#/rrt') Collected at Beaver Valley Power Station; Intake Structure, Unit 1 Cooling Tower~ and Unit 2 Cooling Tower Reservoir, 2020.

I 5.7 Density ofZebra Mussd Veligers (W) Collected at Beav<< Valley Power Station; Barge Slip, Impact 13asin and Emergency Ootfiill, 2020.

I 5.8 Density (#/ef) of Settled Zebra Mussels at Beaver- Valley Power Station; Intake Structure, Unit 1 Cooling Tower Reservoir and Unit 2 Cooling Tower Reservoir, I 2020.

5.9 Density (#/ef) of Settled Zebra Mussels at Beaver Valley Power Station; Barge I Slip, Impact Basin and Emergency Ootfall, 2020.

I I

I I

I I iii I

I I 1.0 EXECUTIVE

SUMMARY

1.1 INTRODUCTION

I This report is submitted in accordance with Section 5.4.1 of Appendix B: To Facfflty Operating License No. NPF-73, Beaver Valley Po_wer Station Unit 2, Environmental Protection Plan (Non-I Radiological). Beaver Valley Power Station (BVPS) is operated by Energy Harbor (EH), formerly FirstEner,gy Nuclear Operating Company (FENOC). The Objectives of the Environmental Protection Plan (EPP) are to:

I

  • Verify that-the facility is operated in an environmentally acceptable manner, as established by the Final Environmental Statement-Operating License Stage (FES-OL) and other I Nuclear Regulatory Commission (NRC) environmental impact assessments,
  • Keep plant operations personnel appraised of changes in environmental conditions that may I affect the facility,
  • Coordinate NRC requirements and mainmin consistency with other Federal, State, and local I requirements for environmental protection, and
  • Keep the NRC informed of the environmental effects of facility construction and operation I and of actions taken to control those effects.

To achieve the objectives o:fthe EPP, both EH and BVPS have written programs and procedures to I comply with the EPP, protect the environment, and comply with governmental requirements primarily including the US Environmental Protection Agency (EPA) and the Pennsylvania Department of Environmental Protection (PADEP) requirements. Water quality matters identified in the Final I Environmental Statements-Operating License Stage (FES-OL) are regulated under- the National Pollutants Discharge FJimination System (NPDES) Permit No. PA0025615. Waste is regulated under EPA Identification No. PAR000040485. Attachment 10.1 contains a listing of permits and I certificates for environmental compliance.

The ,BVPS programs and procedures include pre-work and pre-project environmental evaluations, I operating p r o ~ , pollution prevention and response programs procedw;es and plans, process impro"."emep.t and ~v~ action programs, and human performance programs. Technical and managerial monitoring of tasks, operations, and other activities are performed. Any identified I challenges, concerns, or questions are captured in the EH Corrective Action Program with a Condition Report. Condition Reports are reviewed and closed through investigations, cause determinations, and corrective actions.

I Daring 2020 BVPS continued an Aqu,atic Monitoring Program to provide information on potential impacts to BVPS operation from macrofoulers such as Asian clams (Corbicula) and zebra mussels.

I I

I 2020 Annual Environmental Report 1

Energy Harbor, BVPS I

I 1.2

SUMMARY

& CONCLUSIONS I There were no significant environmental events and no significant changes to operations that affect the environment made at Beaver Valley Power Station in 2020.

I 1.3 ANALYSIS OF SIGNIFICANT ENVIRONMENTAL CHANGE During 2020 no significant changes were made at BVPS to cause any significant negative impacts on I the environment 1.4 AQUATIC MONITORING PROGRAM EXECUTIVE

SUMMARY

I The 2020 Beaver Valley Power Station (BVPS) Units 1 and 2 Non-Radiological Monitoring Program consisted of an Aquatic Program that included surveillance and field sampling of the Ohio River's I aqµatic life in the vicinity of the station. Historically, the. Aquatic Program was*an annual program conducted to provide baseline aquatic resources data, to assess the impact of the operation ofBVPS on the aquatic ecosystem of the Ohio River, and to monitor for potential impacts of biofouling I organisms (Corbic,,lla and zebra mussels) on BVPS operations. This is the 4s1hyear of operational environmental monitoring for Unit 1 and the 34th year for Unit 2. In 2020, simUar to the previous three years, no fish or benthic macroinvertebrate sampling occurred, however, the zebra mussel and I Corbicula monitoring programs were conthlued.

The monthly reservoir ponar samples collected at the Unit 1 and 2 cooling towers and the three I samples collected in the Ohio River at the intake chning 2020 indicated that Corbicula were present in the Ohio River and entering the station. In 2020, six (6) live and seven (7) dead settled Corbicula were collected from the Unit 1 cooling tower reservoir during monthly ponar sampling. Also, in I

2020, fourteen (14) live and eight (8) dead settled Corbicula were collected from the Unit 2 cooling tower reservoir. Further, seven (7) live Corbicula were collected from the Ohio River at the intake during three sampling events in 2020. Juvenile Corbicula were also collected in pump samples I

collected in 2019. The overall low numbers. of live Corbicula collected in the samples collected outside the intake and cooling towers in 2020 compared to 1evds in the 1980's, likely reflects a natural decrease in the density of Corbicula in the Ohio River near BVPS, although the continued I

presence of Corbicula adults andjuveniles in and near BVPS indicates that they could impact the facility if the current control program is not continued. Continued monitoring of Corbicula densities is also recommended to determine whether changes in the Corbicula populations that I

could impact facility operations are occurring.

In 1995, live macrofouling zebra mussels were collected for the first time by dive.rs in the BVPS main I

intake and auxiliary intake structures during scheduled cleanings. Zebra Mussels have been fmmd at BVPS every year since. Overall, both the number of observations and densities of settled mussels in 2020 were consistent to those recorded in 2008-2019, and much higher than the preceding five years.

I Although densities of settled mussels are lower than other populations such as the Lower Great Lakes, densities present in the Ohio River are more than sufficient to cause problems in the operation of untreated cooling water intake systems. Whether the population of zebra mussels in this reach of I

the Ohio River will remain the same or increase cannot be determined. In any case, the densities of mussels that presently exist are more than sufficient to impact the BVPS if continued prudent monitoring and control activities are not conducted.

I 2020 Annual Environmental Report 2 I Energy Harbor, BVPS I

I I 2.0 ENVIRONMENTAL PROTECTION PLAN NON-COMPLIANCES There were no Environmental Protection Plan non-compliances identifi~ in 2020.

I 3.0 CHANGES INVOLVING UNREVIEWED ENVIRONMENTAL QUESTIONS I No Umeviewed Environmental Questions were identified in 2020. Therefore, there were no changes involving an Unreviewed Envjronm~ Questions.

I 4.0 NON-ROUTINEr ENVIR.O~AL- **

REPORTS There were no non-routine environmental reports in 2020.

I 5.0 AQUATIC MONITORING PROGRAM This section of the report summarizes the Non-Radiological Environmental Program conducted for I the BVPS Units 1 and 2; Operating iicenseNwnbers DPR.-66 arufNPF-73. This is a non-mandatory program, because on February 26, 1980, the NRC granted BVPS's request to delete all ofthe Aquatic Monitoring Program, with the exception of the fish impingement program (Amendment No. 25), from I the Environmental Technical Specifications (ETS). In 1983, BVPS was petmitted to also delete the fish impingement studies :from the ETS program of required sampling along with non-radiological water* quality tequirem;ents. Ip 2017, BVPS elected to not conduct the fish and benthic I macroinvertebrate t;asks related to this program.

were maintained and conducted as in previous years.

The zebra mussel and Corbicula monitoring tasks I The objectives of the 2020 environmental program were:

  • To evaluate the presence, growth, and rewo<Iuction of macrofouling Corbicula (Asiatic I clam) and zebra mussels (Dreissena spp.) at BVPS.
  • Keep plant operations appraised of any of changes in environmental conditions that may I affect the facility.

These_objectives h a v e ~ faciley personnel in the past For instance, in the facility's Significant Operating Experi~ce Report (SOER 07-2, October- 2008) relative to "Intake Cooling Water I Blockage" this Aquatic* Monitoring Program was credited as a means of addressing "Changing Environmental Conditions" by looking "for changes in quantity of clam and mussel activity by monitoring the veliger (commonly known as larvae) density in the river and mussel settlement I density."

5.1 SITE DESCRIPTION I BVPS is located on an approximately 453-acre tract of land on the south: bank of tlie Ohio River in the Borough of Shippingport, Beaver County, Pennsylvania The Shippingport Atomic Power Station I once shared the site with BVPS, before being decbmmissioned. Figme 5.1 is a plan view of BVPS.

The site is approximately 1 mile (1.6 km) froth Midland, Pennsylvania; 5 miles (8 km) from East Liverpool, Ohio; and 25 miles (40 km) from Pittsburgh, Pennsylvania Th~ pop~tion within a S-I mile (8 km) radius of the plant is 'approximately 18,000. The Borol;lgh of Midland, Pennsylvania has a population of approximately 3,500.

I 2020 Annual Environmental Report 3

Energy Hamor, BVPS I

I The station is situated at Ohio River Mile 34.8 (Latitude: 40° 36' 18"; Longitude: 80° 26' 02") at a location on the New Cumberland Pool that is 3.1 river miles (5.3 km) downstream from Montgomery I

Lock and Dam and 19.6 miles (312 km) upstream from New Cmnberland Lock and Dam. The Pennsylyani~-O~o-W~ Virgi.$ border is 5.2 river miles (8.4 km) downsµ-eam from the site. The river flow is regulated'by a series of dams and reservoirs on the Beaver, Allegheny, Monongahela, I

and Ohio Rivers and their tnbutaries.

The study site lies along the Ohio River in a valley that has a gradual slope that extends from the river I

at an elevation of 665 ft. (203 m) above mean sea level; to fill el~ation of.1,160 ft. (354 m) along a ridge south of BVPS. The plant entrance elevation at the station is approximately 735 ft. (224 m) above mean sea level.

I BVPS Units 1 and 2 have a thermal rating of 2,900 megawatts (MW). Units 1 & 2 have a design electrical rating of974 MW and 1,009 MW, respectively. The circulating water systems for each unit I

are consi<Jered a clCIBe,d cycle system with continuous overflow, using a cooling tower to minimire heat released to the Ohio River. Commercial operation of BVPS Unit 1 began in 1976 and Unit 2 began operation it;t 1987.

I 5.2 METHODS I Civil & Environmentai Consultants, Incorporated (CBC Inc.) was contracted to perform the 2020 Aquatic MQD.itoring Program as specified in BVBP-ENV-001-Aquatic Monitoring (procedural guide). This procedural guide references and descnbes in detail the field and laboratory procedures I

used in the various monitoring programs, as well as the data analysis and reporting requirements.

These procedures are summarized according to task in the following subsections. Sampling was conducted according to the schedule presented in Table 5.1.

I 5.2.1 Corbicula Density Determinations for Cooling Tower Reservoirs I The Corbicula Monitoring Program at BVPS includes sampling the circulating river water and the service water systems of the BVPS (intake structure and cooling towers). The objectives of the ongoing Monitoring Program were to evaluate the presence of Corbicula at BVPS and to evaluate the I

potential for and timing of infestation of the BVPS. This program was conducted in conjunction with a program to monitor fur the presence ofmacrofouling zebra mussels (see Section 5.23).

I Corbicula enter the BVPS from the Ohio River by passing through the water intakes, and eventually settle in low flow areas including the lower reservoirs of the Units 1 and 2 cooling towers. Corbicula residing in the cooling water system can also produce young that will settle in the system. The density I

and growth of these Corbicula were monitored by collecting monthly sam.P,les from the lower reservoir sidewalls and sediments. The sampler used on the sidewalls consisted of a D-frw:ne net attached.behind a 24-i,nch long metal scraping edge. This device was connected to a pole long enough I

to i;illow the sampler to extend down into the reservoir area from the outside wall of the cooling tower.

&ediments were sampled with a petite Ponar dredge. All equipment was tied off prior to sampling to prevent equipment from accidently falling into the reservoirs.

I Cooling tower reservoir sampling was historically conducted once per month. Beginning in December 1997, it was decided to forego sampling in cold water months, since buildup and growth I

of Corbicula does not occm then. Monthly sampling has been maintained throughout the warmer 2020 Annual Environmental Report 4 I Energy Harbor, BVPS I

I I water months of the year. In 2020 sampling was completed as scheduled, beginning in April and ending in October.

I In 2020, once each month (April through October), a single petite Ponar grab sample was taken in the reservoir* of each cooling tower to obtain density and growth information on Corbicula present in the bottom sediment The samples collected from each cooling tower were returned to the laboratory and I processed. Samples were individually washed, and an:t Corbicula removed and rinsed through a series of stacked U.S. Standard sieves that ranged in mesh size from 1.00 mm to 9.49 mm. Liv.e and dead clams retained in each sieve were counted and the numbers were recorded. 'The size distnbutioo I data obtained using the sieves reflected clam width, rather than length. Samples containing a ~

number of Corbicula were not sieved; individuals were measured and placed in their respective size categories.* A scraping sample of about 12 square feet was also collected at each cooling tower chning I each monthly sampling effort. This sample was processed in a manner consistent with the petite ponar samples. All -samples were successfully collected.

I 5.2.2 Corbicula Juyenile M;onitoring The Corbicula juvenile study was designed to collect data on ,Corbicula spawning activities and I growth of individuals entering the intake from the Ohio River. From 1988 through 1998, clam cages were deployed in the intake forebay to monitor for Corbicula that entered the BVPS.

I Dming the 1998 sampling season, at the request of BVPS personnel, all clam cages were removed after the May collection. Monthly petite ponar grabs from the forebay in the intake building continued thereafter. Samples were processed in the same manner as Cooling Tower samples (Section 5.2.1).

I From 2002 to present, because of site.access restrictions, sampling with the peti~ ponar has been moved to the Ohio River directly in front of the Intake Structme Building. Collections are presently I scheduled to be made in May, July, and September. During each sampling month two ponar grabs are taken just offshore of the intake building. These grab samples are processed in the same manner as when they were collected during monthly sampling.

I 5.2.3 Zebra Mussel Monitoring I The Zebra Mussel Monitoring Program includes sampling the Ohio River and the circulating river water system of the BVPS.

I The objectives of the Monitoring Program are:

(1) To identify if zebra.mussels were in the Ohio River adjacent to BVPS and provide early warning to operations personnel as to their possible infestation; I (2) To provide data as to when the larvae were mobile in the Ohio River and insights as to their vulnerability to potential treatments; and I (3) To provide data on their overall density and growth rates under different water temperatures and provide estimates on the time it requires these mussels to reach the size and density that I could impact the plant The zebra mussel sampling for settled adults was historically conducted once per month throughout the year. Beginmng in December 1997, it was decided to forego sampling in the colder water months I 2020 Annual Environmental Report 5

Energy Harbor, BVPS I

I of each year, since buildup of zebra mussels and growth of the individuals that were present, does not occur. Monthly sampling has been maintained throughout the balance of the year. In 2020 sampling I

oee:mred from April through October.

A pump sample for zebra mussel veligers was collected at the barge slip location monthly from April I through October in 1996 and 1997. *The scope of the sampling was expanded in 1998 to also include the intake structure. In June 1998, the Emergency Outfall and Emergency Outfall Impact .Basin (impact basin} locations were also added. Additional pump samples were collected from the cooling I

towers of Unit 1 and Unit 2 in October 1998. In 2020, veliger sampling began in April and was conducted monthly through October.

I At the Intake Structure and Barge Slip the following surveillance techniques were used:

  • Wall scraper sample collections on a monthly basis from the barge slip and the riprap near I the intake structure to detect attached adults; and -
  • Pump sample collections from the barge slip and outside the intake structure, to detect the planktonic early life forms.

I At each of the cooling towers the following techniques were used:

I

  • Monthly reservoir scraper sample collections in each cooling tower; and
  • Monthly pump samples to detect planktonic life forms. I At the Emergency Outfall and the impact basin the following techniques were used:
  • Monthly scraper sample collections in each; and - I
  • Monthly pump samples in each to detect pl~nic life forms.

5.2A Reports I Each month when sampling was performed, activity reports summarizing the activities that took place the previous month were prepared and submitted. These reports included the results of the monthly I Corbicula and zebra mussel monitoring including any trends observed and any preliminary results available. The reports addressed progress made on each task and reported any observed biological activity of interest. \ I 5.3 AQUATIC MONITORING PROGRAM RESULTS The following sections summarize the findings for each of the program elements. Sampling dates for I

each of the program elements are presented in Table 5.1.

I 5.3.1 Corbicula Monitoring Program I In 2020, no sampling was conducted at the Unit 2 cooling tower reservoir in April due to a scheduled outage. All other sampling was successfully conducted as scheduled. I 2020 Annual Environmental Report 6 I Energy Harbor, BVPS I

I I In 2020, six (6) settled live Corbicula were collected from the Unit 1 cooling tower reservoir during monthly ponar sampling (Table 5.2 and Figure 5.2). Two (2) were ~llected in April and were between 3.35 mm and 6.29 mm, which iµdicated that i t ~ settled in 2019. One (,t) settled live I Corbicula was collected in August and was in the 335 - 4.75 mm size class, which indicated that it had settled earljer in i020. Three (3) additi<;>mtl live Corbicula (between 2.00 mm and 4. 74 mm) were coll~ in September and also likely ~ed earlier in 2020. Seven (7) dead Corbicula were also I collected in 2020 in the Unit 1 cooling tower reservoir and were J.Ucely killed during scheduled 2

molloscici de treatments. The seasonal average density of settled live Corbicula was 37/m. , which was less than in 2019 (60/m.2), but comparable to 2018 *(361m2). Corbicula juveniles were also I collected in monthly pump samples collected in the Unit 1 cooling tower reservoir in August and September . No Corbicula were collected in the scraping samples.

I In 2020, 14 live settled Corbicula were collected from the Unit 2 cooling tower reservoir (Table 5 .3 and Figure 5.3). Live mussels were collected in all months sampled except August. No sampling was conducted in_ April due to a unit outage. They ranged* in size from 2.00 mm to 9.49 mm, which I indicated that the.likely settled in 2020. Eight (8) dead Cotbicula were also collected dming 2020.

The dead Corbicula, were also collected in all sampled months except August and were probably killed by ~eduled molluscici de treatments. The seasonal average density of settled live Corbicula I was 100/m.2 that was less than in 2019 or 2018. The-highest density of settled live Corbicula occurred 2

in the October sample when a density of 301 Corbiculalm. was present Corbicula juveniles were only collected* in monthly pump *samples collected in *the Unit 2 cooling tower reservoir in June and I August. No Corbicula were collected in the scraping samples.

Corbicula juveniles were coll~ed at non cooling tower locations during monthly pump sampling I from June through August 2020. In July they were collected at all locations except the barge slip.

3 Densities of Corbicula juveniles reached 528 individuals/m. in the August impact basin sample. This indicates a significant population of Corbicula in the vicinity of the BVPS that could impact plant I operations if steps were not taken to control the mussels.

In 2020, BVPS continued its Corbicula control program that included the use of a molluscicide to I prevent the proliferation of Corbicula within BVPS. BVPS was granted permission by the P ADEP to use a molluscicid e to target the Unit 1 river water system and the Unit 2 service water system.

I In 1990 through 1993, the molluscicid e applications focused on reducing the Corbicula population throughout the entire river water system of each BVPS plant (Units 1 and 2). In 1994 and 1995, the application s targeted the internal water systems; therefore; the molluscicid e concentrations in the I cooling towers were reduced during applications. Consequently, adult andjuvenil e Corbicula in the cooling towers often surv:ived the applications. Reservoir sediment samples taken after molluscicid e application s represent mortality of Corbicula in the cooling tower only and do not reflect mortality I in BVPS internal water systems.

The monthly reservoir sediment samples and pump samples collected in Units 1 and 2 Cooling I Towers in 2020 and in recent years demonstrated that Corbicula were entering and colonizing the 2

reservoirs. An average density of 37 live settled Corbiculalm was collected in the Unit2 1 cooling tower and 100/m2 in the Unit 2 cooling tower in 2020. A density of301 live Corbicula/m collected I in the Unit 2 cooling tower reservoir in October is likely a high enough density to cause operational impacts if the clams were not controlled and instead were allowed to mature, grow and reproduce.

I 2020 Annual Environmental Report 7

Energy Harbor, BVPS I

I Corbicula juveniles were also in the cooling tower pump samples as well as at all other pmnp sampling locations, which indicates that they still are available for establishment in the cooling I towers. The recent decrease of Corbicula at the BVPS returns densities to levels more consistent with densities in the Ohio River in the mid-1990's, but well below those present dming the 1980's.

Wliether the relatively low density of Corbicula in 2020 is indicative of permanent lower levels in I

the environment or due to natural variability is-uncertain, however, and coiJ.tiimed monitoring of Cotbicula densities is recommended.

I 5.3.2 Corbicu/a Juvenile Monitoring Figme 5.4 presents the abundance and size distribution data for samples collected in the Ohio River I near the intake structure by petite ponar dredge in 2020. Seven (7) live Corbicula were collected in 2020 compared to five (5) live individuals collected in 2019. In 2020, they ranged in siz.e from the 4.75 mm to greater than 9.5 mm and were likely spawned in 2020 or- 2019. Live individuals were I

collected during each of the three sampling events. A spring/early-summer spawning period typically occurs in the Ohio River near BVPS each year when preferred spawning temperatures are reached (60-65° F) (Figw-e 5.5)..The offspring from this spawning event generally begin appearing in the I

sample collections in July. The settled clams then generally increase in size throughout the late summer and fall. The nmnber of individuals collected per sampling event in 2020 was less than in 2019 ~d 2018 but comparabl~ to that collected in 2017. This is_~ostlikely due to normal variability I

in the,population in the Ohio River. In any case, the densities of Corbicula continue to be low relative what was present in the 1980's. I The overall low nmnbers of live Corbicula collected in the samples collected outside the intake in 2020, compared to levels in the 1980's, likely reflects a natural decrease in the density of Corbicula in the Ohio River near BVPS, although the continued presence of Corbicula adults and juveniles near I

BVPS indicates that they could impact the facility if the cmrent control program is not continued.

Continued monitoring of Corbicula densities is also recommended to determine whether changes in the Corbicula populations that could impact facility operations are occwring.

I 5.3.3 Zebra Mussel Monitoring Program I

Zebra mussels (Dreissena po/ymorpha and the closely related species Dreissena bugensis) are exotic freshwater mollusks that have ventrally flattened shells, which are generally marked with alternating dark and lighter bands. They are believed to have been introduced into North America through the I

ballast water of ocean-going cargo vessels probably from Eastern Europe. They were first identified in Lake St Clair in 1988 and rapidly spread to other Great Lakes and the Mississippi River drainage system, and have become abundant in the lower, middle, and upper Ohio River. They use strong I

adhesive byssal threads, collectively referred to as their byssus, to attach themselves to any hard surfaces (e.g. intake pipes, cooling water intake systems, and other mussels). Responding to NRC Notice No. 89-76 (Biofouling Agent-Zebra Mussel, November 21, 1989), BVPS instituted a Zebra I

Mussel Monitoring Program in January 1990. Studies have been conducted each year since then.

Spawning begins as water temperature reaches approximately 57° F and peaks at water temperature I

of 74° F. Veliger densities usually peak about two weeks after the optimum water temperature for spawning is reached. Veliger densities then fall off as veligers mature and settle, although female mussels continue to broadcast mature eggs throughout the season. River water temperature in April I

2020 Annual Environmental Report 8 I Energy Harbor, BVPS I

I I was below 65° F, which is at the low end of the spawning range (Figure 5.5). River water temperature in June reached 75° F, which is the optimum spawning temperature and was above 65° F until October.

I Zebra muss~ls were detected in both the pump samples (Figures 5.6 and 5. 7) and the substrate samples (Figure 5.~ and 5.9) in 2020. Veligers were coll~ at all of the sµt. sites that were ~led in 2020.

Zebra mussels were collected in veliger pump samples from May tbrough October. No veligers were collected in April and relatively low densities of veligers were collected in the May and October I samples.

I Veligers were pres~ at all smwle4 locai!ooµ; in June through September. By samp),ing loqrtjon, the highest annual densities in zebra mussel veligers occurred in Al,\gUSt at the Unit 2 ~ling Tower Reservoir , the emergenc y outfall and the impact basin. The densities peaked in June in the intake I sample, in July at the barge slip and in Septembe r at the Unit 1 Cooling Tower Reservoi r. The majority of the veligers were D-fonn, which were very recently spawned and not able to settle. The percentage of mussels capable of settling generally increased througho ut the sampling season.

I The greatest density ofveliger s in any sample collected in 2020 was present in the sample collected 3

from the Unit 1 cooling tower in Septembe r (20,520/m ). This was less than the highest veliger I density found in 2019 (48,500/m ), 2018 (28,750/m3) or 2017 (116,500/m3). Veliger densities in 3

2020 were consisten t with the peak density of veligers in the five years prior to that.

I In 2020, settled zebra mussels were frequently collected in scrape samples taken at the barge slip and the intake structure (Figures 5.8 and 5.9). A single individual was also collected in the impact basin.

The highest density of settled mussels in any sample collected was at the barge slip (57.4 mussels/m2)

I in the May sample. The mussels collected at the barge slip and intake structure included individuals that were capable of reproducing as well as mussels settled during 2020. Overall, both the mmber of observati ons and densities of settled mussels in 2020 were consistent to those recorded in 2008-2019, I and much higher than the preceding 5 years.

Although densities of settled mussels are low compared to other populatio ns such as the Lower Great I Lakes, densities comparab le to those in the Ohio River are sufficient to cause problems in the operation of untreated cooling water intake systems.

I Whether the populatio n of zebra mussels in this reach of the Ohio River will remain the same or increase cannot be determine d. In any case, the densities of mussels that presently exist are more than sufficient to impact BVPS if continued prudent monitorin g and control activities are not conducted.

I 6.0 ZEBRA MUSSEL AND CORBICULA CONTROL ACTIVITIES In 2020, BVPS continued its Corbicula and zebra mussel control program (32nd year), which includes I the use of a molluscic ide to prevent the proliferat ion of Corbicula and zebra mussels within BVPS.

BVPS was granted permissio n by the P ADEP to use a molluscic ide to target the Unit 1 river water I system and the Unit 2 service water system.

In 1990 through 1993, the molluscicide applications {CT-1) focused on reducing the Corbicula populatio n througho ut the entire river water system of each BVPS plant (Units 1 and 2). In 1994 I through 2006, the CT-1 or CT-2 (reformulated CT-1) applications targeted zebra mussels and Corbicula in the internal water systems; therefore, the molluscic ide concentra tions in the cooling I 2020 Annual Environmental Report 9

Energy Harbor, BVPS I

I towers were reduced during CT-1 or CT-2 applications. Consequently, adult and juvenile Corbicula in the cooling towers often survived the applic.ations. Reservoir sediment samples taken after CT-1 I

or CT-2 applications represented mortality of Corbicula in the cooling tower only and do not reflect mortality in BVPS internal water systems. In 2007 BVPS began using Nalco H150M as the molluscicide. This product, which has the same active ingredients as the CT-2 and CT-2, was applied I

in the same manner.

In addition to clamicide treatments, preventive measures were taken that included quarterly cleaning I of the Intake Bays. The bay cleanings are intended to roioi:miz.e the accumulation and growth of mussels within the bays. This practice prevents creating an uncontrolled internal colonization habitat.

Intake bay cleaning is currently on a semiannual basis.

I I

I I

I I

I I

I I

I I

I 2020 Annual Environmental Report 10 I Energy Harbor, BVPS I

I I

7.0 REFERENCES

Counts, C. C. III, 1985. Distn'bution of Corbiculafluminea at Nuclear Facilities. Division of I Engin~ U.S. Nuclear Regulatory Commission. NUREOLCR 4233. 79 pp.

FENOC, 2003. Annual Environmental Operating Report, Non-radiological. First Energy Nuclear I Operating Company, Beaver Valley Power S~tion, Unit No .. 1 & 2. 113 pp.

FENOC, 2004. Annual Environmental Operating Report, Non-radiological. First Energy Operating I Company,,Beaver Valley Power Station, Unit No. 1&2. 82 pp.

FENOC, 2005. Annual Environmental Operating Report, Non-radiological. First Energy Operating I Company, Beaver Valley Power Station, Unit No. 1&2. 82 pp.

FENOC, 2006. Annual Environmental Operating Report, Non-radiological. First Energy Operating Company, Beaver Valley Power Station, Unit No. 1&2. 82 pp.

I FENOC, 2007. Annual Environmental Operating Report, Non-radiological. First Energy Operating Company, Beaver Valley Power Station, Unit No. 1&2. 82 pp.

I FENOC, 2008. Annual Environmental Operating Report, Non-radiological. First Energy Operating Company, Beaver Valley Power Station, Unit No. 1&2. 82 pp.

I FENOC, 2009. Annual Environmental Operating Report, Non-radiological. First Energy Operating Company, Beaver Valley Power Station, Unit No. 1&2. 82 pp.

I FENOC, 2010. Annual Environmental Operating Report, Non-radiological. First Energy Operating Company, Beaver Valley Power Station, Unit No. 1&2. 82 pp.

I FENOC, 2011. Annual Environmental Operating Report, Non-radiological. First Energy Operating Company, Beaver Valley Power Station, Unit No. 1&2. 82 pp.

I FENOC, 2012. Annual Environmental Operating Report, Non-radiological. First Energy Operating Company, Beaver Valley Power Station, Unit No. 1&2. 82 pp.

I FENOC, 2013. Annual Environmental Operating Report, Non-radiological. First Energy Operating Company, Beaver Valley Power Station, Unit No. 1&2. 82 pp.

I FENOC, 2014. Annual Environmental Operating Report, Non-radiological. First Energy Operating Company, Beaver Valley Power Station, Unit No. 1&2. 82 pp.

I FENOC, 2015. Annual Environmental Operating Report, Non-radiological. First Energy Operating Company, Beaver Valley Power Station, Unit No. 1&2. 83 pp.

I FENOC, 2016. Annual Environmental Operating Report Non-radiological. First Energy Operating Company, Beaver Valley Power Station, Unit No. 1&2. 83 pp.

I FENOC, 2017. Annual Environmental Operating Report Non-radiological. First Energy Operating Company, Beaver Valley Power Station, Unit No. 1&2. 83 pp.

I 2020 Annual Environmental Report 11 Energy Harbor, BVPS I

I FENOC, 2018. Annual Environmental Operating Report Non-radiological. First Energy Operating Company, Beaver Valley Power Station, Unit No. 1&2. 26 pp.

I FENOC, 2019. Annual Environmental Operating Report Non-radiological. First Energy Operating Company, Beaver Valley Power Station, Unit No. 1&2. 26 pp.

I FENOC, 2020. Annual Environmental Operating Report Non-radiological. First Energy Operating Company, Beaver Valley Power Station, Unit No. 1&2. 26 pp.

I NRC, IE Bulletin 81-03: Flow Blockage of Cooling Tower to Safety System Components by Corbicula sp. (Asiatic Clam) and Mytilus sp. (Mussel).

I I

I I

I I

I I

I I

I I

I 2020 Annual Environmental Report 12 I Energy Harbor, BVPS I

I I 8.0 TABLES TABLES.I I BEAVER VALLEY POWER STATION (BVPS)

SAMPLING DATFS FOR 2020 I ~ ... ~~~'.,~!"-~ H 11';,'-:4" \!~"R ..

~i-~~**~ ~~~-::.::;.~ ~*~1:?~_;_ 1

}- ~~~*-~=~=--~ '~~:; r.i~~~: ~1~-- ~-~: i .. *, -~- ~-:~_;.~:-* ..

JS .. ,,.. " :..*,-.*.

~

Y' **. 1,1~r.*** ... .,,::~ t-..,...;~

  • 11: 4 - ,,., *** ,,;.* ,,* .

j 1 ":!J

~--~~*~~1 I Bentm: Macroinvertebrate*

Fish* '

,I Corbicula and Zebra Mussel 28 28 28 28 25 25 30 30 27 27 30 30 22 22

zebra Mussel Ve)iger I
  • Not scheduled in 2020 I TABLES.2 I UNIT 1 COOLING RESERVOIR MONTHLY SAMPLING CORBICULA DENSITY DATA FOR I 2020 FROM BVPS Area Maximum Minimum Estimated I Collection Date Sampled Live or (sq ft)

Length Dead Count Ra112e (mm) Range(mm) (pers-qm)

Length Number Dead 1 3.35-4.74 3.35-4.74 43 I 4/2&/2020 0.25 Live Dead 2

0 4.75-6.29 335-4.74 86 0

5/2&/2020 0.25 Live - - 0 I fJ25/2020 0.25 Dead 0

0 - - 0 Live 0 - - 0 I 7/30/2020 0.25 Dead Live 0 1 3.35-4.74 335-4.74 43 0

Dead 2 4.75-6.29 4.75-6.29 86 I &/27/2020 0.25 Live Dead 3 1 3.35-4.74 4.75-6.29 3.35-4.74 335-4.74 43 129 9/30/2020 0.25 Live 3 3.35-4.74 2.00-3.34 129 I 10/22/2020 0.25 Dead Live 0

0 0

0 I Unit summary Dead Live 7

6

>9.50 6.30-9.94 3.35-4.74 3.35-4.74 43 37 I 2020 Annual Environmental Report 13 Energy Harbor, BVPS I

I TABLES.3 I UNIT 2 COOLING RESERVOIR MONTIIl,YSAMPLIN G CORBICULA DENSITY DATA FOR I

,1 2020 FROM BVPS

-,~ -*~r..- *-* -.- ~;--: ...., ~,.~ ~::.:;'lo:.'."

. , *- i-~*"""'; f\.~fl it";1.' \;:;~~~ (~~--

    • -~~~~~  :-~:;

--.- - ~'!"";~ *-*~- *'

"N .

Cclleetion Date .

.,*s

~ Uwor Coimt ; Len,gftl~e

,.,. **-..r:

__ Dtict , -- - . ;-:;.~ -

_:~ a I 4/28/2020* --- Dead --- - - ---

Live Dead 1

4.75-629 4.75-629

--- *1 43 5/28/2020 0.25 6/25/2020 0.25 Live Dead 2

1 6.30-9.94 3.35-4.74 6.30-9.94 3.35-4.74 86 43 I live 2 2.00-3.34 2.00-3.34 86 7/30/2020 0.25 Dead live 2

1 4.75-629 3.35-4.74 4.75-6.29 3.35-4.74 86 43

1 8/27/2020 0.25 Dead 0 - - 0 9/30/2020 0.25 live Dead 0

2 3.35-4.74 3.35-4.74 0

86 I

live 2 4.75-629 3.35-4.74 86 10/22/2020 0.25 Dead Live 2 >9.50 6.30-9.94 3.35-4.74 86 I 7 4.75-6.29 301 Unit s ummacy Dead Uw 8

14

>9.50 6.30-9.94 3.35-4.74 2.00-3.34 S7 100 I

  • Not sampled in April due to outage 1

I I

I I

I 2020 Annual Environmental Report 14 I Energy Harbor, BVPS I

I I 9.0 FIGURES I

I

. Figure 5.1 Location of study area: Beaver Valley Power Station (BVPS), Shippingport, PA Sandus~y

" .0 Cleveland ,_

Alrf:'" .

National F<<est PENNSYLVAN IA I

I OHI O olumbus 0 0.

bnetYille I Alnenl

  • P*ri!~

Midland ~hippingport I *~ t 0o n WE ST VIRGINIA Monon Nat1ona C!!!!J ,;,

CMrleatono r.

I I

I I

I I

I I

I I 2020 Annual Environmental Report 15 Energy Harbor, BVPS I

Figure 5.2 Comparison of Hve Corblcula clam density estimates among 2020 BVPS Unit 1 cooling tower reservoir events, for various clam shel groups.

500 It 450 400 350 i;

~

300 250 200 150 I 100 50 0

a o.01-0.99 mm 101.00-1.99mm -0 0 0 0 0 -0 0
2. 00-3.34 mm 0 0 0 0 0 86 0 1 3.36-4. 74 mm 43 0 0 0 43 43 0 1 4.75-6.29mm 43 0 0 0 0 0 0 1 6. 30-9.49 mm 0 0 0 0 0 0 0 1 >9.50mm 0 0 0 0 0 0 0 I TOTAL.Mn2 86 0 0 0 43 129 0 16 2020 Annual Environmental Report Energy Harbor, BVPS

I I Figure 5.3 Comparison of live Corblcula clam density estimates among 2020 BVPS Unit 2 cooing tower reservoir events, for various clam shell groups.

I I a:

I!!

i I er:

t 500 450 I i

~

er:

400 350 300 250 200 I i 150 100 SIZE RANGE 50 I 0 IIO.Ot-0.99 mm al.OO.l.!19mm 0 0 I .Z.00-3.Slmm

-3.35-4.7' mm e'-7U.29mm 6.J0.9.Gmm 0

0 0

0 0

0 0

86 86

'3 0

0 0

'3 0

0 0

0 0

0 0

'3

'3 0

0 0

86 215 a>9.50mm 0 0 0 0 0 0 0 I TOT,L&ln2 0 85 129 '3 0 SIS 301

  • Not Sampled in April due to outage I

I I

I I

I I

I 2020 Annual Environmental Report 17 Energy Harbor, BVPS I

I Figure 5.4 Comparison of live Corbicula clam density estimates among 2020 BVPS Intake Structure sample events, for various clam shel groups.

I I

ILI, 0

0::

14 12 10 I

! 8 6

2 0

5128 7/'JIJ 913()

8 0.01-0.99 mm a1.00-1.99mm 82.00-3.34 mm 0

0 0

0 0

0 0

0 I

8 3.35-4.74 mm 0 0 0 Intake slruclure boClom samples are 84.7~.29mm a6.30-9.49 mm

>9.~m 0

1 0 1

2 0

1 colecled from the Ohio RiY8r at the lnlake Bulding. I 11TOTAL I

2 2 3 I

I I

I I

I I

2020 Annual Environmental Report 18 I Energy Harbor, BVPS I

I I Figure 5.5 water Temperature and River Elevation Recorded at the Ohio River at BVPS Intake Structure During 2020 on Monthly Sample Dates.

I ~ ~ - - - - - - - - - - - - - - - - -- ----~6~

I I

I f 60 1 - - - ---J.-- -- -------------""'-----I 670 J I  ?

I I 30.___ _ _ _ _ _ _ _ _

4128 5128 6125

_._temp

-+-elevation 7/30 2020 Monthly Sample Date 8/27 9/30 10/22 664 I

I I

I I

I I

I 2020 Annual Environmental Report 19 Energy Harbor, BVPS I

I 25000 I

I 20000 I

15000 I

10000 I I

5000 - - - - - - - - - - - - -

I 0

Intake StmctunlOpeo Water Unit 1 Cooling Tower Reservoir Unit 2 Cooling Tower Reesvo.-.

I r.14/28 0 0 0 D S/28 D 6/2S

  • 7/30 30 2860 810 10 10 210 0

390 110 I

8/l7

  • 9/30 D l<V.22 1667 338 0

3177 20520 71 10295 7303 39 I

Sample location I

I Figure 5.6. Density of zebra mussel veligers collected at Beaver Valley Power Station, 2020.

  • Not sampled in April due to outage I

I I

I 2020 Annual Environmental Report 20 I Energy Harbor, BVPS I

I I 10000 I 9000 8000 I 7000 6000 I "'l

.@ 5000

at:

I 4000 3000 I 2000 I 1000 0

Barge Slip Impact Basin Emergency Outfall I 1B 4128 5/28 0

0 0

0 0

0 a 6/25 I 7/30 340 2650 3190 1210 900 1290 CJ 8127 2152 9504 5440 I 9/30 a 1002 1351 19 756 0

894 8

I Sample location I

I Figure 5.7. Density of zebra mussel veligers collected at Beaver Valley Power Station, 2020.

I I

I I 2020 Annual Environmental Report 21 Energy Harbor, BVPS I

I I

I I

I 40 I

3.0 - I 2.0 I

- I 1.0 -

I 0.0 r c::a lutake Stl\ldureK>pcu W*~

Unit 1 Cooling Tower Reservoir Unit 2 Cooling Tower Reservoir4'

  • I GI 4/28 0.0 0.0 0.0 a 5/28 a 6/25 0.4 3.1 0.0 0.0 0.0 0.0 I

C 7/30 0.0 0.0 0.0 D 8127 D 9/30 10/22 1.3 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 I

I I

Figure 5.8. Density of settled zebra mussels at Beaver Valley Power Station, 2020.

  • Not sampled in April due to high water
    • Not sampled in April due to outage I

I 2020 Annual Environmental Report 22 I Energy Harbor, BVPS I

I I 65.00 I 60.00 55.00 I 50.00 45.00 I 'a 40.00 35.00

~ 30.00 I 25.00 20.00 I 15.00 10.00 I 5.00 0.00 B8JEeSlip* Impact Basin Emergency Outfall I 13

  • a 4/28 0.00 0.90 0.00 C 5/28 S7.40 0.00 0.00 I 6/25 7/30 18.83 20.63 0.00 0.00 0.00 0.00 8/27 S.38 0.00 0.00 I 9/30 10/22 6.73 2.69 0.00 0.00 0.00 0.00 I C I

I Figure 5.9. Density of settled zebra mussels at Beaver Valley Power Station, 2020.

  • Not sampled in April due to high water I

I I

I 2020 Annual Environmental Report 23 Energy Harbor, BVPS I

I

  • 1 I

10.0 PERMITS ATIACHMENT 10.1 I

BEAVER VALLEY POWER STATION (BVPS)

PERMITS AND CERTIFICATES FOR ENVIRONMNETAL COMPLIANCE I

- *~ ~

  • r -. .

Registration

~

Number Regulator/Description BVPS EPA generator identification Resource Conservation & Recovery

. Expifatlon I PAR000040485 Act (RCRA) Identification number for regulated waste activity. Also used by PA DEP to monitor regulated waste activity under the Pennsylvania Solid Waste Management Act (SWMA)

Indefinite I 04-02474 BVPS EPA Facility Identification Number for CERCLA/EPCRA/SARA.

Used for SARA Tier Il reporting and emergency planning.

FE Long Term Distribution Center/Warehouse (22) EPA Facility Indefinite I 04-02475 Identification Number for CERCLA/EPCRA/SARA. Used for Sara Tier Il Indefinite reoorting and emergency planning.

12/27/2006 Continued, PA0025615 BVPS NPDES Permit Number under US EPA and PA DEP. Pending approval of renewal application BVPS Unit 1 PA DEP Facility Identification & certification number for 04-13281 Indefinite 04-13361 regulated storage tanks.

BVPS Unit 2 PA DEP Facility Identification & certification number for relllilated storage tanks. Indefinite I

PA DEP State Only Synthetic Minor Permit for emergency auxiliary OP-04-00086 boilers, emergency diesel generators, paint shop and other miscellaneous sources.

6/12/2025 I 030320550014BC US Department of Transportation Haz.ardous Materials Registration. 6/30/2021 2001-242 US Army Permit for maintenance dredging (with Encroachment/Submerged Lands Agreement #0477705, this allows 12/31/2021 I

maintenance dredging).

Encroachment Permit/Submerged Lands Agreement for construction and 477705 maintenance of current barge slip (with US Army Permit #2000100242, Indefinite this allows maintenance dred2ing).

06786A Encroachment Permit/Submerged Lands Agreement for transmission line over Ohio River at Mile 34.5. Indefinite I Encroachment Permit/Submerged Lands Agreement for Unit 1 intake and 18737 475711 discharge (main combined intake and outfall structures).

Encroachment Permit/Submerged Lands Agreement for construction and Indefinite Indefinite I.

maintenance of Unit 2 auxiliary line.

I 2020 Annual Environmental Report 24 I Energy Harbor, BVPS I

Retrieved from "https://kanterella.com/w/index.php?title=ML21127A155&oldid=3253903"