ML19064B233

Data Report or Intake Screen Sampling at Peach Bottom Atomic Power Station in 2013

ML19064B233
Person / Time
Site:	Peach Bottom
Issue date:	12/06/2013
From:	Normandeau Associates
To:	Exelon Generation Co, Office of Nuclear Reactor Regulation
Hayes B, NRR-DMLR 415-7442
Shared Package
ML19064B212	List: ML19064B214 ML19064B215 ML19064B216 ML19064B218 ML19064B220 ML19064B221 ML19064B223 ML19064B225 ML19064B226 ML19064B227 ML19064B230 ML19064B232 ML19064B233 ML19064B235 ML19064B237 ML19067A109 NRC-2013-0232, Letter to Exelon Generation Company, LLC (P. Navin) Regarding 401 Water Quality Certification Peach Bottom Atomic Power Station Extended Power Uprate, DEP File No. EA 67-024, NRC Docket No. NRC-2013-0232, York and Lancaster County
References
Download: ML19064B233 (5)

Text

DATA REPORT ON INTAKE SCREEN SAMPLING AT PEACH BOTTOM ATOMIC POWER STATION IN 2013 December 2013 DATA REPORT ON INTAKE SCREEN SAMPLING AT PEACH BOTTOM ATOMIC POWER STATION IN 2013 Prepared for PEACH BOTTOM ATOMIC POWER STATION Delta, Pennsylvania 17314 Prepared by NORMANDEAU ASSOCIATES, INC. 1921 River Road Drumore, Pennsylvania 17 518 Normandeau Associates' Project Number 20316. 003 December 2013

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2013 Data Report on Intake Screen Sampling at the Peach Bottom Atomic Power Station

1.0 INTRODUCTION

Normandeau Associates, Inc. (Normandeau) was contracted by Exelon Corporation to conduct intake screen sampling at their Peach Bottom Atomic Power Station (PBAPS) during fall 2013. The study objective was two-fold:

it fulfills Exelon's obligation to support the Susquehanna River's American shad restoration program as stated in the 2013 annual work plan, and it provides juvenile American shad specimens to the Pennsylvania Fish and Boat Commission (PFBC) for otolith analysis, which compares the overall contribution of hatchery and wild fish to the population.

2.0 METHODS

Intake screen sampling was scheduled to occur three days per week, (Monday, Wednesday, and Friday), with a two-person crew, from 4 November to 6 December 2013 (except for Friday, 29 November).

A total of 14 sampling events was conducted at the outer screen house during the juvenile American shad outmigration period. Normandeau personnel contacted PFBC personnel throughout the study period to keep them updated on collection/sampling activities.

Peach Bottom control room personnel were contacted before and after each sampling event. The intake screens were operated on an as needed basis during the sample period, and for a minimum of 30 minutes prior to each trash bin being pulled from the collection pit and the contents available for sampling.

Peach Bottom personnel hoisted the trash bins out of the screen house to facilitate sampling and ensure the safety of the work crew. All fish observed in the trash bins (both Units 2 and 3) were identified and counted (if possible).

In 2013, sub-sampling of certain species, (gizzard shad), was necessary due to large numbers or heavy debris loads which occurred infrequently throughout the study period. Juvenile American shad that were suitable for analysis, (head and body intact), were counted, measured (nearest mm total length), and preserved (frozen) prior to delivery to PFBC personnel.

3.0 RESULTS

A total of20,062 fish of25 taxa was collected; 10,058 from Unit 2 and 10,004 from Unit 3 (Table 1). Gizzard shad (13,989) and bluegill (5,693) comprised 98% of the total, while all other species combined accounted for 2% of the total fish collected.

Other species common in the collections were channel catfish (154), carp (55) and American shad (49). A total of 49 American shad was collected during the fall 2013 sampling at the PBAPS. American shad were collected on 12 of the 14 scheduled sampling events; American shad were not collected on December 4 and 6 (Table 2). All juvenile American shad collected were provided to the PFBC for otolith analysis.

4.0

SUMMARY

Intake screen sampling was conducted during the main portion of the juvenile American shad outmigration period in Conowingo Pond. No sampling occurred in October 2013 due to a refueling outage at the PBAPS. At this time, it is uncertain when these juvenile shad may have moved downstream into Conowingo Pond. A weekly haul seine project conducted by Normandeau for the PFBC in the vicinity of City Island (Harrisburg, PA) and Columbia, PA from mid-July through October 2013 resulted in one juvenile American shad collected at Columbia on 12 August 2013. Relatively stable river flows occurred throughout the sampling period with no discernible freshets which would move fish downstream.

The 49 American shad collected in 2013 was nearly double that collected in 2012. A total of 49 juvenile American shad was collected and provided to the PFBC from sampling activities at the PBAPS in 2013.

2013 N ormaidea.J A ss:x:i ates, I nc.

Table 1 Number of fish collected during intake screen sampling by unit at Peach Bottom Atomic Power Station, 4 November to 6 December 2013.

Unit2 Unit3 Total American eel 0 3 3 American shad 21 28 49 Gizzard shad 7,152 6,837 13,989 Carp 27 28 55 Golden shiner 0 1 Comely shiner 13 12 25 Spottail shiner 1 2 Spotfin shiner 0 2 2 Bluntnose minnow 3 0 3 Shorthead redhorse 0 1 Channel catfish 125 29 154 Flathead catfish 7 5 12 Banded killifish 7 3 10 White perch 0 1 Rock bass 1 2 3 Redbreast sunfish 0 1 1 Green sunfish 12 9 21 Bluegill 2,669 3,024 5,693 Smallmouth bass 0 1 Largemouth bass 9 11 20 White crappie 0 3 3 Black crappie 5 4 9 Tessellated darter 2 Logperch 0 1 Greenside darter 0 1 TOTAL 10,058 10,004 20,062 -----------.. PBAPSjuvAm.shad -December2013 Normandeau Associates, Inc.

Table 2 Number of juvenile American shad collected during intake screen sampling by unit at Peach Bottom Atomic Power Station, 4 November to 6 December, 2013. Date Unit2 UnitJ Total 04 Nov I 0 06 Nov 6 10 16 08 Nov I 2 11 Nov 0 2 2 13 Nov 2 3 15 Nov 2 0 2 18 Nov 0 1 20Nov 2 4 6 22 Nov 0 25 Nov 4 3 7 27Nov 3 3 6 02 Dec 0 2 2 TOTAL 21 28 49 PBAPSjuvAm shad-Oecember 2013 Normandeau Assoc/alas, Int:.