ML19123A262

Annual Environmental Operating Report Non-Radiological

ML19123A262
Person / Time
Site:	Beaver Valley
Issue date:	03/26/2019
From:	Kuresak K, Lange C FirstEnergy Nuclear Operating Co
To:	Office of Nuclear Reactor Regulation
Shared Package
ML19123A268	List: L-19-113, Rev. 9 to ODCM: Radiological Environmental Monitoring Program ML19123A260 ML19123A261 ML19123A262 ML19123A265 ML19123A266
References
L-19-113
Download: ML19123A262 (31)

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RTL# A9.630F FIRSTENERGY NUCLEAR OPERATING COMPANY BEA VER VALLEY POWER STATION 2018 ANNUAL ENVIRONMENTAL OPERA TING REPORT NON-RADIOLOGICAL UNITS NO. 1 AND 2 LICENSES DPR-66 AND NPF-73

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5.1. l BEA VER VALLEY POWER ST A TIGN ENVIRONMENTAL & CHEMISTRY SECTION Technical Report Approval 2018 ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT (Non-Radiological)

UNITS NO. 1 AND 2 LICENSES DPR-66 AND NPF-73 Prepared by: Cameron L. Lange (Via E-mail)

Date: 12-6-18 Prepared by: Kelsy Kurcsak J!fljr,f::r£D Date:_3;;;..-=26;;;..-=19'------

Reviewed by: Susan L. Vicinie V

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I __ i TABLE OF CONTENTS 1.0 EXECUTIVE

SUMMARY

........................................................ -.................................... 1

1.1 INTRODUCTION

................................................................................................ 1 1.2

SUMMARY

& CONCLUSIONS......................................................................... l 1.3 ANALYSIS OF SIGNIFICANT ENVIRONMENTAL CHANGE..................... 2 1.4 AQUATIC MONITORING PROGRAM EXECUTIVE

SUMMARY

................ 2 2.0 ENVIRONMENTAL PROTECTION PLAN NON-COMPLIANCES..................... 2 3.0 CHANGES INVOLVING UNREVIEWED ENVIRONMENTAL QUESTIONS... 3 4.0 NON-ROUTINE ENVIRONMENT AL REPORTS................................................ 3 5.0 AQUATIC MONITORING PROGRAM.................................................... 3 5.1 SITE DESCIPTION...................................................................... 3 5.2 METHODS

.............................................................................. 4 5.2.1 Corbicula Density Determinations for Cooling Tower Reservoirs.........4 5.2.2 Corbicula Juvenile Monitoring.................................................. 5 5.2.3 Zebra Mussel Monitoring........................................................ 5 5.2.4 Reports.............................................................................. 6 5.3 AQUATIC MONITORING PROGRAM AND RESULTS................................. 7 5.3.1 Corbicula Monitoring Program................................................................ 7 5.3.2 Corbicula Juvenile Monitoring................................................................. 8 5.3.3 Zebra Mussel Monitoring Program........................................................... 9 6.0 ZEBRA MUSSEL AND CORBICULA CONTROL ACTIVITIES.......................... 10

7.0 REFERENCES

......................... :.................................................................................... 10 8.0 TABLES............................... c ***************************************************************************************** 12 9.0 FIGURES....................................................................................................................... 16 10.0 PERMITS.......... ;..................................'......................................................................... 26 201 8 Annual Environmental Report FENOC (BVPS)

L LIST OFT ABLES 5.1 Beaver Valley Power Station (BVPS) Sampling Dates for 2018.

5.2 Unit 1 Cooling Reservoir Monthly Sampling Corbicula Density Data for 20 J 8-from BVPS.

5.3 Unit 2 Cooling Reservoir Monthly Sampling Corbicula Density Data for 2018 from BVPS.

LIST OF FIGURES 5.1 Location of Study Area, B~aver Valley Power Station Shippingport, Pennsylvania (BVPS).

5.2 Comparison of Live Corbicula Clam Density Estimates Among 2018 BVPS Unit I Cooling Tower Reservoir Events, for Various Clam Shell Groups.

5.3 Comparison of Live Corbicula Clam Density Estimates Among 2018 BVPS Unit 2 Cooling Tower Reservoir Events, for Various Clam Shell Groups.

5.4 Comparison of Live Corbicula Clam Density Estimates Among 2018 BVPS Intake Structure Sample Events, for Various Clam Shell Groups.

5.5 Water Temperature and River Elevation Recorded at the Ohio River at BVPS Intake Structure During 2018 on Monthly Sample Dates.

5.6 Density of Zebra Mussel Veligers (lb/m3) Collected at Beaver Valley Power Station, 2018; Intake Structure, Unit 1 Cooling Tower Reservoir and Unit 2 Cooling Tower Reservoir.

5.7 Density of Zebra Mussel Veligers (lb/m3) Collected at Beaver Valley Power Station, 2018; Barge Slip, Splash Pool and Emergency Outfall.

5.8 Density (lb/m2) of Settled Zebra Mussels at Beaver Valley Power Station, 2018; Intake Structure, Unit 1 Cc;>0ling Tower Reservoir and Unit 2 Cooling Tower Reservoir.

5.9 Density (lb/m2) of Settled Zebra Mussels at Beaver Valley Power Station, 2018; Barge Slip, Splash Pool and Emergency Outfall Basin.

2018 Annual Environmental Report FENOC (BVPS) 11

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I 1.0 EXECUTIVE

1.1 INTRODUCTION

This report is submitted in accordance with Section 5.4.1 of Appendix B: To Facility Operating License No. NPF-73, Beaver Valley Power Station Unit 2, Environmental Protection Plan (Non-Radiological). Beaver Valley Power Station (BVPS) is operated by FirstEnergy Nuclear Operating Company (FENOC). The Objectives of the Environmental Protection Plan (EPP)'are to:

~ 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 Nuclear Regulatory Commission (NRC) environmental impact assessments, Keep plant operations personnel appraised of changes in environmental conditions that may affect the facility, e

Coordinate NRC requirements and maintain consistency with other Federal, State, and local requirements for environmental protection, and e

Keep the NRC informed of the environmental effects of facility construction and operation and of actions taken to control those effects.

To achieve the objectives of the EPP, both FENOC and BVPS have written programs and procedures to 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 Environmental Statements-Operating License Stage (FES-OL) are regulated under the National Pollutants Discharge Elimination System (NPDES) Permit No.

PA0025615. Waste is regulated under EPA Identification No. PAR000040485. Attachment 10.1 contains a listing of permits and certificates for environmental compliance.

The BVPS programs and procedures include pre-work and pre-project environmental evaluations, operating procedures, pollution prevention and response programs procedures and plans, process improvement and corrective action programs, and human performance programs. Technical and managerial monitoring of tasks, operations, and other activities are performed. Any identified challenges, concerns, or questions are captured in the FENOC Problem Identification and Resolution Program with a Condition Report. Condition Reports include investigations, cause determinations, and corrective actions.

During 2018 BVPS continued an Aquatic Monitoring Program to provide information on potential impacts to BVPS operation from macrofoulers suchras Asian clams and zebra mussels.

1.2

SUMMARY

AND CONCLUSIONS There were no significant environmental events during 2018, and no significant changes to operations were made at Beaver Valley Power Station which could affect the environment.

2018 Annual Environmental Report FENOC (BVPS)

1.3 ANALYSIS OF SIGNIFICANT ENVIRONMENTAL CHANGE During 2018, no significant changes were made at BVPS to cause significant or negative effects on the environment.

1.4 AQUATIC MONITORING PROGRAM The 2018 Beaver Valley Power Station (BVPS) Units 11 and 2 Non-Radiological Monitoring Program consisted of an Aquatic Program that included surveillance and field sampling of the Ohio River's aquatic 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 of BVPS on the aquatic ecosystem of the Ohio River, and to monitor for potential impacts of biofouling organisms (Corbicula and zebra mussels) on BVPS operations. This is the 43rd year of operational environmental monitoring for Unit 1 and the 32nd year for Unit 2. In 2018, no fish or benthic macroinvertebrate sampling occurred, however, the zebra mussel and Corbicula monitoring programs were continued.

The monthly reservoir ponar samples collected in Unit 1 and 2 cooling towers and the two samples collected at the intake during 2018 indicated that Corbicula were present in the Ohio River and entering the station. In 2018, five (5) live and two (2) dead settled Corbicula were collected from the Unit 1 cooling tower reservoir during monthly ponar sampling. In 2018, 26 live and 12 dead settled Corbicula were collected from the Unit 2 cooling tower reservoir.

The overall low numbers of live Corbicula collected in the samples collected outside the intake and cooling towers in 2018 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 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 could impact facility operations were occurring.

In 1995, live macrofouling zebra mussels were collected for the first time by divers in the BVPS main intake and auxiliary intake structures during scheduled cleanings. They have been found in the BVPS every year since. Overall, both the number of observations and densities of settled mussels in 2018 were consistent to those recorded in 2008-2017, and much higher than the preceding five years. Although densities of settled mussels are lower than other populations such as the Lower Great Lakes, densities comparable to those 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 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 B VPS, if continued prudent monitoring and control activities are not conducted.

2.0 ENVIRONMENTAL PROTECTION PLAN NON-COMPLIANCES There were no Environmental Protection Plan non-compliances identified in 2018.

20 I 8 Annual Environmental Report FENOC (BVPS) 2

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i 3.0 CHANGES INVOLVING UNREVlEWED ENVIRONMENTAL QUESTIONS No Un-reviewed Environmental Questions were identified in 2018. Therefore, there were no changes involving an Un-reviewed Environmental Question.

4.0 NON-ROUTINE ENVIRONMENTAL REPORT There was one non-routine environmental report made to the PADEP in 2018. A sample taken October 1, 2018 from Outfall 012, Emergency Response Facility HVAC blowdown, analyzed high for zinc. The result, 3.5 ppm, exceeded the daily maximum limit of 1.5 ppm established in our permit. A 24-hour notification was delivered via phone call on October 12, 2018 at 1545 and the five-day follow-up submitted on October 17, 2018.

5.0 '

AQUATIC MONITORING PROGRAM This section of the report summarizes the Non-Radiological Environmental Program conducted for the BVPS Units 1 and 2; Operating License Numbers DPR-66 and NPF-73. This is a non-mandatory program, because on February 26, 1980, the NRC granted BVPS 's request to delete all of the Aquatic Monitoring Program, with the exception of the fish impingement program (Amendment No. 25), from the Environmental Technical Specifications (ETS). In 1983, BVPS was permitted to also delete the fish impingement studies from the ETS program of required sampling along with non-radiological water quality requirements. In 2017, BVPS elected to not conduct the fish and benthic macroinvertebrate tasks related to this program which was continued in 2018. The zebra mussel and Corbicula monitoring tasks were maintained and conducted as in previous years.

The objectives of the 2018 environmental program were:

To evaluate the presence, growth, and reproduction of macrofouling Corbicula (Asiatic clam) and zebra mussels (Dreissena spp.) at BVPS.

Keep plant operations appraised of any of changes in environmental conditions that may affect the facility.

These objectives have assisted facility personnel in the past. For instance, in the facility's Significant Operating Experience Report (SOER 07-2, October 2008) relative to "Intake Cooling Water 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 density."

• 5.1 SITE DESCRIPTION BVPS is located on an approximately 453-acre tract*of land on the south bank of the Ohio River in the Borough of Shippingport, Beaver County, Pennsylvania. The Shippingport Atomic Power Station once shared the site with BVPS, before being decommissioned. Figure 5. I is a plan view 2018 Annual Environmental Report FENOC (BVPS) 3

ofBVPS. The site is approximately 1 mile (l.6 km) from Midland, Pennsylvania; 5 miles (8 km) from East Liverpool, Ohio; and 25 miles (40 km) from Pittsburgh, Pennsylvania. The population within a 5-mile (8 km) radius of the plant is approximately 18,000. The Borough of Midland, Pennsylvania has a population of approximately 3,500.

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 Lock and Dam and 19.6 miles (31.2 km) upstream from New Cumberland Lock and Dam. The Pennsylvania-Ohio-West Virginia border is 5.2 river miles (8.4 km) downstream from the site. The river flow is regulated by a series of dams and reservoirs on the Beaver, Allegheny, Monongahela, and Ohio Rivers and their tributaries.

The study site lies along the Ohio River in a valley that has a gradual slope that extends from the river at an elevation of 665 ft. (203 m) above mean sea level; to an elevation of 1,160 ft. (3 54 m) along a ridge south of BVPS. The plant entrance elevation at the station is approximately 735 ft.

(224 m) above mean sea level.

BVPS Units 1 and 2 have a thermal rating of 2,900 megawatts (MW). Units 1 & 2 have a design electrical rating of 974 MW and 1,009 MW, respectively. The circulating water systems for each unit are considered a closed cycle system with continuous overflow, using a cooling tower to minimize heat released to the Ohio River. Commercial operation of BVPS Unit 1 began in 1976 and Unit 2 began operation in 1987.

5.2 METHODS Aptim Environmental & Infrastructure, Incorporated (Aptim) was contracted to perform the 2018 Aquatic Monitoring Program as specified in BVBP-ENV-001-Aquatic Monitoring (procedural guide). This procedural guide references and describes in detail the field and laboratory procedures 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.

5.2. l Corbicula Density Determinations for Cooling Tower Reservoirs 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 potential for and timing of infestation of the BVPS.

This program was conducted in conjunction with a program to monitor for the presence of macrofouling zebra mussels (see Section 5.2.3).

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 I and 2 cooling towers. The density and growth of these Corbicula were monitored by collecting monthly samples from the lower reservoir sidewalls and sediments. The sampler used on the sidewalls consisted of a D-frame net attached behind a 24-inch long metal scraping edge. This device was connected to a pole long enough to allow the sampler to extend down into the reservoir area from the outside 2018 Annual Environmental Report FENOC (BVPS) 4 i

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wall of the cooling tower. Sediments were sampled with a petite Ponar dredge. All equipment was tied off prior to sampling to prevent equipment from accidently falling into the reservoirs.

Cooling tower reservoir sampling was historically conducted once pC;!r month. Beginning in December 1997, it was decided to forego sampling in cold water months since buildup and growth of Corbicula does not occur then. Monthly sampling has been maintained throughout the warmer water months of the year. In 2018 sampling began in April and ended in October.

In 2018, once each month (April through October), a single petite Ponar grab sample was scheduled to be 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 processed. Samples were individually washed, and any Corbicula removed and rinsed through a series of stacked U.S. Standard sieves tha! ranged in mesh size from 1.00 mm to 9.49 mm. Live and dead clams retained in each sieve were counted and the numbers were recorded. The size distribution data obtained using the sieves reflected clam width, rather than length. Samples containing a small 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 during each monthly sampling effort.

This sample was processed in a manner consistent with the petite ponar samples. All samples were successfully collected.

5.2.2 Corbicula Juvenile Monitoring The Corbicula juvenile study was designed to collect data on Corbicula spawning activities and 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.

During 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).

From 2002 to present, because of site access restrictions, sampling with the petite ponar has been moved to the Ohio River directly in front of the Intake Structure Building. Collections are presently 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.

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

The objectives of the Monitoring Program are:

(I) 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; 20 I 8 Annual Environmental Report FENOC (BVPS) 5

(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 (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 could impact the plant.

The zebra mussel sampling for settled adults was historically conducted once per month throughout the year. Beginning in December 1997, it was decided to forego sampling in the colder water months 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 2018 sampling occurred from April through October.

A pump sample for zebra mussel veligers was collected at the barge slip location monthly from April 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 Facility (EOF) and Emergency Outfall Impact Basin (splash pool) locations were also added. Additional pump samples were collected from the cooling towers of Unit 1 and Unit 2 in October 1998. In 2018, veliger sampling began in April and was scheduled to be conducted monthly through October.

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 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.

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

Monthly reservoir scraper sample collections in each cooling tower; and Monthly pump samples to detect planktonic life forms.

At the EOf and the splash pool the following techniques were used:

Monthly scraper sampl_e collections in each; and Monthly pump samples in each to detect planktonic life forms.

5.2.4 Reports Each month, activity reports that summarized the activities that took place the previous month were prepared and submitted. These reports included the results of the monthly Corbicula and zebra mussel monitoring including any trends observed and any pre! iminary results available. The reports addressed progress made on each task, and reported any observed biological activity of interest.

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I~ f 5.3 RES UL TS OF THE AQUA TIC MONITORING PROGRAM The following sections summarize the findings for each of the program elements. Sampling dates for each of the program elements are presented in Table 5.1.

5.3.1 Corbicula Monitoring Program In 2018, no sampling was conducted at the Unit I cooling tower reservoir in April due to a scheduled outage. Also scheduling issues delayed completion of the May sampling until June pt_

All other sampling was successfully conducted as scheduled.

In 20 l 8, five (5) settled live Corbicula were collected from the Unit 1 cooling tower reservoir during monthly ponar sampling (Table 5.2 and Figure 5.2). Two were collected in April and were between 3.4 mm and 4.7 mm, which indicated that it had settled late in 2017. One settled live Corbicula was collected in August and was between 3.4 mm and 4.7 mm, which indicated that it had settled earlier in 2018. Two additional live Corbicula (between 3.4 mm and 6.3 mm) were collected in September and also likely settled earlier in 2018. Two dead Corbicula were also collected in 2018 in the Unit 1 cooling tower reservoir. The seasonal average density of settled live Corbicula was 36/m2, which was comparable to 2017. No Corbicula were collected in the scraping samples. Corbicula juveniles were also collected in monthly pump samples collected in the Unit 1 cooling tower reservoir in July and August.

In 2018, 26 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 for July. They range in size from 2.00 mm to greater than 9.5 mm, which indicates that some of them settled prior to 2018. Twelve ( 12) dead Corbicula were also collected during 2018. The dead Corbicula were also collected in all sampled months except July, and were probably killed by scheduled molluscicide treatments. The seasonal average density of settled live Corbicula was 289/m2 that was higher than in 2017, 2016 and 2015. The highest density of settled live Corbicula occurred in the second June sample when a density of 946 Corbiculalm2 was present. No Corbicula were collected in the scraping samples. Corbicula juveniles were only collected in monthly pump samples collected in the Unit 2 cooling tower reservoir in September.

Corbicula juveniles were collected at non cooling tower locations during monthly pump sampling from June through September 2018. Note that the barge slip and intake/open water sites were not sampled in April or September due to flooding that contributed to unsafe conditions at these locations. In June, Corbicula juveniles were collected only at the Emergency Outfall Facility (EOF).

In July, they were collected at all locations. In August they were collected at the intake/open water location and the EOF. In September they were collected only at the splash pool.

Densities of Corbicula juveniles exceeded 700 individuals/m3 in the August intake sample. This indicates a significant population of Corbicula in the vicinity of the BVPS that could impact plant operations if steps were not taken to control the mussels.

In 20 l 8, BVPS continued its Corbicula control program that included the use of a \\nolluscicide to prevent the proliferation of Corbicula within BVPS. BVPS was granted permission by the PADEP to use a molluscicide to target the Unit I river water system and the Unit 2 service water system.

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2018 Annual Environmental Report FENOC (BVPS) 7

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

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

An average density of 36 live settled Corbiculalm2 was collected in the Unit 1 cooling tower and 289/m2 in the Unit 2 cooling tower in 2018. A density of 946 live Corbicula/m2 collected in the Unit 2 cooling tower reservoir in June was likely high enough to cause operational impacts if the clams were not controlled and instead were allowed to mature, grow and reproduce. Corbicula juveniles were also in the cooling tower pump samples as well as at all other pump sampling locations, which indicates that they still are available for establishment in the cooling towers. The recent decrease of Corbicula at the BVPS returns densities to levels more consistent with densities in the Ohio River in the mid-l 990's, but well below those present during the 1980's. Whether the relatively low density of Corbicula in 2018 is indicative of permanent lower levels in the environment or due to natural variability is uncertain, however, continued monitoring of Corbicula densities is recommended.

5.3.2 Corbicula Juvenile Monitoring Program Figure 5.4 presents the abundance and size distribution data for samples collected in the Ohio River near the intake structure by petite ponar dredge in 2018. Note that scheduled sampling could not be conducted in September due to Ohio River flooding that resulted in unsafe conditions, so only two months were sampled.

Four (4) live individuals were collected the two months sampled in 2018 (average of 2.0 per month), compared to 15 in 2017 when three months were sampled (average of 5.0 per month) and 18 in 2016 when four months were sampled (average of 4.5 per month). In 2018, they ranged in size from the 2.00 mm to 6.29 mm size range and were spawned in late 2017 and early 2018. 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) (Figure 5.5). The offspring from this spawning event generally begin appearing in the sample collections in July. The settled clams then generally increase in size throughout the late summer and fall. The number of individuals collected per sampling event in 2018 was about half of that collected in 2017 and 2016. This is most likely due to normal variability in the population in the Ohio River. In any case, the densities of Corbicula continue to be low relative to what was present in the 1980's.

The overall low numbers of live Corbicula collected in the samples outside the intake and cooling towers in 2018, compared to levels in the 1980's, likely reflects a natural decrease in the density of Corbicula in the Ohio River near BVPS. However, the continued presence of Corbicula adults and juveniles near BVPS 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 could impact facility operations.

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_i 5.3.3 Zebra Mussel Monitoring Program Zebra mtissels (Dreissena polymorpha) are exotic freshwater mollusks that have ventrally flattened shells that are generally marked with alternating dark and.lighter bands. They are believed to have been introduced into North America through the 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 adhesive byssal threads, collectively referred to as their byssus, to attach themselves to any hard surfaces ( e.g.,

inta!<e pipes, cooling water intake systems, and other mussels). Responding to NRC Notice No.

89-76 (Biofouling Agent-Zebra Mussel, November 21 1 1989), BVPS instituted a Zebra Mussel Monitoring Program in January 1990. Studies have been conducted each year since then.

Zebra mussels were detected in both the pump samples (Figures 5.6 and 5.7) and the substrate samples (Figure 5.8 and 5.9) in 2018. Veligers were collected at all of the six sites that were sampled in 2018. Note that the Unit 1 cooling tower was not sampled in April due to a scheduled outage and the intake and barge slip were not sampled in April of September due to flood waters that caused unsafe conditions. Also scheduling issues delayed completion of the May..sampling until June 1st. All other sampling was successfully conducted as scheduled.

Zebra mussels were collected in veliger pump samples from June 1st (rescheduled May sample) through September 2018. No veligers were collected in April or October. Relatively low densities of veligers were collected in the two June samples and in the September sample.

Spawning begins as water temperature reach approximately 57° F and peaks at water temperatures of74° 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 was 51 ° F, which is below the spawning threshold (Figure 5.5). River water temperature in both June samples was about 74° F, which is the optimum spawning temperature. Veligers were present at all sampled locations in August only. The highest annual densities in zebra mussel veligers occurred in July at the intake/open water location, the barge slip, the splash pool and the EOF. The highest annual densities of veligers at both cooling towers occurred in August. The majority of these veligers were D-form, which were very recently spawned and not able to settle.

The percentage of mussels capable of settling generally increased throughout the sampling season.

The greatest density of veligers was present in the sample collected from the Splash Pool in July (28,750/m3). This was lower than the highest veliger density found in 2017 (l 16,500/m3) and 2016 (136,250/m3), but comparable to the peak density of veligers in the five years prior to that.

In 2018, settled zebra mussels were collected only in scrape samples at the barge slip and the intake structure (Figures 5.8 and 5.9). The highest density of settled mussels in any sample collected was at the barge slip (24.2 mussels/m2) in the June 1st sample. The mussels collected at the barge slip and intake structure included individuals that were capable of reproducing as well as mussels settled during 2018. The density of adult zebra mussels collected in 2018 was comparable to the densities collected in 2017 and 2016 and somewhat higher than the densities that occurred in 2015 and 2014.

2018 Annual Environmental Report FENOC (BVPS) 9

Overall, both the number of observations and densities of settled mussels in 2018 were consistent to those recorded in 2008-2017, and much higher than the preceding 5 years. Although densities of settled mussels are low compared to other populations such as the Lower Great Lakes, densities comparable to those in the Ohio River are sufficient to cause problems in the operation of untreated cooling water intake systems.

Whether the population of zebra mussels in this reach of 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 B VPS, if continued prudent monitoring and control activities are not conducted.

6.0 ZEBRA MUSSEL AND CORBICULA CONTROL ACTIVITIES In 2018, BVPS continued its Corbicula and zebra mussel control program (291h year), which includes the use of a molluscicide to prevent the proliferation of Corbicula and zebra mussels within BVPS. BVPS was granted permission by the PADEP to use a molluscicide to target the Unit 1 river water system and the Unit 2 service water system.

In 1990 through 1993, the molluscicide applications (CT-1) focused on reducing the Corbicula population throughout the entire river water system of each BVPS plant (Units 1 and 2). In 1994 through 2006, the CT-1 or CT-2 (reformulated CT-1) applications targeted zebra mussels and Corbicula in the internal water systems; therefore the molluscicide concentrations in the cooling towers were reduced during CT-1 or CT-2 applications.

Consequently, adult and juvenile Corbicula in the cooling towers often survived the applications. Reservoir sediment samples taken after CT-1 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 Hl50M as the molluscicide. This product, which has the same active ingredients as the CT-2 and CT-2, was applied in the same manner.

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

7.0 REFERENCES

Counts, C. C. III, 1985. Distribution of Corbicula jluminea at Nuclear Facilities. Division of Engineering, U.S. Nuclear Regulatory Commission. NUREGLCR. 4233. 79 pp.

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

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

FENOC, 2005. Annual Environmental Operating Report, Non-radiological. First Energy Operating 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.

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

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

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

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

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

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

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

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

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

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

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

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

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

20 l 8 Annual Environmental Report FENOC (BVPS) 11

2018 Annual Environmental Report FENOC (BVPS) 8.0 TABLES 12

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I TABLES.I BEA VER VALLEY POWER STATION (BVPS)

SAMPLING DATES FOR 2018 sniay*

Jan Feb Mar Apr Jun*

'Jlill.

Jul Aug*

Benthic.Macroirweriebrate**

Fish**.

17 1

Corbicitla and' Zebra Mussel Zebra Mussel Veliger 17 1

• Sampling for May occurred on June 1 due to scheduling conflicts

• • Not scheduled in 2018 20 I 8 Annual Environmental Report FENOC (BVPS) 13 28 26 23 28 26 23

. s*ep 0.ct *.

• Nov Dec**

20 18 20 18

i TABLE5.2 UNIT 1 COOLING RESERVOIR MONTHLY SAMPLING CORBICULA DENSITY DATA FOR 2018 FROM BVPS Area Maximum Collection Sampled Live or Length Date (sq ft) 4/17/2018*

6/1/2018 0.25 6/28/2018 0.25 7/26/2018 0.25 8/23/2018 0.25 9/20/2018 0.25 10/18/2018 0.25 Unit summary

• Unit outage; not sampled 2018 Annual Environmental Report FENOC (BVPS)

Dead Dead Live Dead Live Dead Live Dead Live Dead Live Dead Live Dead Live Dead Live Count Range (mm) 2 3.35-4.74 2

4.75-6.29 0

0 0

1 3.35-4.74 0

0 0

2 4.75-6.29 0

0 2

4.75-6.29 5

4.75-6.29 14 Minimum Estimated Length Number Range(mm) (per sq m) 3.35-4.74 86 3.35-4.74 86 0

0 0

3.35-4.74 43 0

0 0

3.35-4.74 86 0

0 3.35-4.74 14 3.35-4.74 36

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TABLE5.3 UNIT 2 COOLING RESERVOIR MONTHLY SAMPLING CORBICULA DENSITY DATA FOR Area Sampled Collection Date (sqft) 4/17/2018 0.25 6/1/2018 0.25 6/28/2018 0.25 7/26/2018 0.25 8/23/2018 0.25 9/20/2018 0.25 10/18/2018 0.25 Unit *s uminary 2018 Annual Environmental Report FENOC (BVPS) 2018 FROM BVPS Maximum Live or Length Range Dead Count (mm)

Dead 1

4.75-6.29 Live 7

>9.50 Dead 1

3.35-4.74 Live 1

4.75-6.29 Dead 5

>9.50 Live 22

>9.50 Dead 0

Live 0

Dead 3

3.35-4.74 Live 6

6.30-9.94 Dead 1

>9.50 Live 1

>9.50 Dead 2

>9.50 Live 10

>9.50 Dead 12

>9.50 Live 40

>9.50 15

.Minimum Estimated Length Number Range(mm)

(persqm) 4.75-6.29 43 3.35-4.74 301 3.35-4.74 43 4.75-6.29 43 3.35-4.74 215 3.35-4.74 946 0

0 2.00-3.34 129 2.00-3.34 258

>9.50 43

>9.50 43 4.75-6.29 86 4.75-6.29 430 2.00-3.34 80 2.00-3.34 289

2018 Annual Environmental Report FENOC (BVPS) 9.0 FIGURES 16

20 18 Annual Environmental Report FENOC (BVPS)

Mon Mar 17 12:45 1997 Scale 1 :62,500 (al center) 1 Mllea 2KM C 199S Dd.onnc

~

z C

~

m z

5

IQ 0 z

C m

z

~

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IQ m

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-I Figure 5.1 Location of Study Area, Beaver Valley Power Station Shippingport, Pennsylvania (BVPS) 17

Comparison of live Corbicula clam density estimates among 2018 BVPS Unit 1 cooling tower reservoir events, for various clam shell groups.

500 c::

450 UJ tw 400

E a:

UJ 350 c.. I 300 250 200 u..

0 a:

150 UJ co

E 100 z

50 0

4;1r 6/1 1&0.01-0.99 mm 0

0 CJ 1.00-1.99 mm 0

0 2.00-3.34 mm 0

0 03.35-4. 74 mm 0

43 la4. 75-6.29 mm 0

43 06.30-9.49 mm 0

0 o >9.50 mm 0

0 TOTAL #lm2 0

86

• No sample collected in April due to shutdown 20 l 8 Annual Environmental Report FENOC (BVPS) 6128 7126 8123 9120 10/18 0

0 0

0 0

0 0

0 0

0 0

0 0

0 0

0 43 0

43 0

0 0

0 43 0

0 0

0 0

0 Figure 5.2 0

0 0

0 0

0 43 0

86 0

18 SIZE RANGE

Comparison of live Corbicula clam density estimates among 2018 BVPS Unit 2 cooling tower reservoir events, for various clam shell groups.

0:::

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0 300 u

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110.01-0.99mm Cl 1.00-1.99 mm m 2.00-3. 34 mm Cl 3.35-4. 7 4 mm 114.75-6. 29 mm a6.30-949 mm c>9.50mm TOTAL #ttn2 201 8 Annual Environmental Report FE OC (BVPS) 4117 611 0

0 0

0 0

0 43 43 86 0

43 0

129 0

301 43 TOTAL1,/m2 SIZE RANGE 6128 7126 8123 9120 10118 0

0 0

0 0

0 0

0 0

0 0

0 86 0

0 43 0

43 0

0 129 0

86 0

86 559 0

43 0

215 215 0

0 43 129 946 0

258 43 430 Figure 5.3 19

Comparison of live C orbicula c lam d e nsity estimates among 2018 BVPS Intake Structure sample events, for various c lam shell groups.

~

J u

ai a:::

14 0 u LL 12 0

a:::

10 w

CJ

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6 4

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6/ 1 7/26 9/ 20*

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0 0

0 0

0 2.00-3.34 mm 0

1 0

c3 35-4.74 mm 1

1 0

a4. 75-6.29 mm 1

0 0

06 30-9.49 mm 0

0 0

111>9.50mm 0

0 0

cTOTAL 2

2 0

• No samples in September taken due to high flows/unsafe conditions.

201 8 Annual Environmental Report FENOC (BYPS) 20 SIZE RANGE Intake structure bottom samples are collected from the Ohio River at the Intake Building.

Figure 5.4

0 LL Cl>...

8.

E

~

~

cu 3:

90 80 70 60 50 40 30 Water Temperature and River Elevation Recorded at the Ohio River at BVPS Intake Structure During 2018 on Monthly Sample Dates.

4/17 6/1

-a-temp

~

elevation 6/28 7/26 2018 Monthly Sample Date 676 674 672 670 668 666 ot:54 8/23 9/20 10/18

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?i Figure 5.5 20 I 8 Annual Environmental Report FENOC (BVPS) 21

~ a -

It; Density of zebra mussel veligers (lb/m3) collected at Beaver Valley Power Station, 2018.

18000 16000 14000 12000 10000 8000 6000 4000 2000 0

Intake Structure/Open Water*

Unit 1 Cooling Tower Reseivoir**

Unit 2 Cooling Tower Reservoir r.l 4/17 0

0 0 6/ 1 0

150 06/28 0

110

• 7126 16600 430 8/23 10890 4932

• 9120 0

73 a 10118 0

0 Sample location

• Intake not sampled in April or September due to unsafe conditions/flood waters.

• • Unit I not sampled in April due to outage.

2018 Annual Environmental Report FENOC (BVPS) 22 0

170 100 0

8400 568 0

Figure 5.6

f")

8 -

it:

Density of zebra mussel veligers (lb/m3) collected at Beaver Valley Power Station, 2018.

35000 30000 25000 20000 15000 10000 5000 0

Emergency Outfall Barge Slip*

Splash Pool ra 4/17 0

0 0

06/1 200 0

20 06/28 10 150 210

• 7/26 5610 28750 26800 8/23 1794 3959 6783

• 9/20 0

125 192 D 10/18 0

0 0

Sample location Figure 5.7

• Barge slip not sampled in April or September due to unsafe conditions/flood waters.

20 18 Annual Environmental Report FENOC (BVPS) 23

Density of settled zebra mussels (lb/m2) at Beaver Valley Power Station, 2018.

1.0 M

6 -

it:

0.0 Intake Strncture/Opeu Unit 1 Cooling Tower Unit 2 Cooling Tower Water*

Reservoir**

Reservoir g

12 4/17 0.0 0.0 06/1 0.9 0.0 0 6/28 0.9 0.0 7/26 0.0 0.0 08/23 0.0 0.0 fl 9/20 0.0 0.0 010/18 0.9 0.0

• Intake not sampled in April or September due to unsafe conditions/flood waters.

• • Unit I not sampled in April due to outage.

2018 Annual Environmental Report FENOC (BVPS) 24 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Figure 5.8

Density of settled zebra mussels (lb/m2) at Beaver Valley Power Station, 2018.

30.00 25.00 20.00 N

8 15.00

~

10.00 5.00 0.00 Emergency Outfall Barge Slip*

Splash Pool fa D 4/17 0.00 0.00 0.00 06/1 24.22 0.00 0.00

. 6/28 3.59 0.00 0.00

• 7/26 13.90 0.00 0.00

• 8/23 17.49 0.00 0.00

• 9120 0.00 0.00 0.00 10/18 10.76 0.00 0.00 D

Figure 5.9

• Barge slip not sampled in April or September due to unsafe conditions/flood waters.

201 8 Annual Environmental Report FENOC (BVPS) 25

2018 Annual Environmental Report FENOC (BVPS) 10.0 PERMITS 26

i

. I Table 10.1 BEA VER VALLEY POWER STATION {BVPS)

PERMITS AND CERTIFICATES FOR ENVIRONMNET AL COMPLIANCE Registration Reg_ulator/Description

.Number BVPS EPA generator identification Resource Conservation &

P AR00004048 5 Recovery 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)

BVPS EPA Facility Identification Number for 04-02474 CERCLA/EPCRA/SARA. Used for SARA Tier II reporting and emergency planning.

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

PA0025615 BVPS NPDES Permit Number under US EPA and PA DEP.

04-13281 BVPS Unit l PA DEP Facility Identification & certification number for regulated storage tanks.

04-13361 BVPS Unit 2 PA DEP Facility Identification & certification number for regulated storage tanks.

PA DEPA State Only Synthetic Minor Pe1mit for emergency OP-04-00086 auxiliary boilers, emergency diesel generators, paint shop and other miscellaneous sources.

NIA PA DEP Open Burning Permit for operation of the BVPS Fire School - annual application and renewal.

042009 450 US Department of Transportation Hazardous Materials 002RT Registration.

US Army Permit for maintenance dredging (with 200100242 Encroachment/Submerged Lands Agreement #0477705, this allows maintenance dredging).

Encroachment Permit/Submerged Lands Agreement for 477705 construction and maintenance of current barge slip (with US Army Permit #2000 I 00242, this allows maintenance dredging).

06786A Encroachment Permit/Submerged Lands Agreement for transmission line over Ohio River at Mile 34.5.

18737 Encroachment Permit/Submerged Lands Agreement for Unit 1 intake and discharge (main combined intake and outfall structures).

475711 Encroachment Permit/Submerged Lands Agreement for construction and maintenance of Unit 2 auxiliary line.

20 I 8 Annual Environmental Report FENOC (BVPS) 27

. Expiration Indefinite Indefinite Indefinite 12/27/2006 Continued, Pending approval of renewal avvlication Indefinite Indefinite 4/28/2020 1/1/2020 12/31/2021 Indefinite Indefinite Indefinite Indefinite Indefinite