ML19064B230

Data Report or Intake Screen Sampling at Peach Bottom Atomic Power Station in 2012

ML19064B230
Person / Time
Site:	Peach Bottom
Issue date:	12/07/2012
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: ML19064B230 (5)

Text

DATA REPORT ON INTAKE SCREEN SAMPLING AT PEACH BOTTOM ATOMIC POWER STATION IN 2012 December 2012

DATA REPORT ON INTAKE SCREEN SAMPLING AT PEACH BOTTOM ATOMIC POWER STATION IN 2012 Prepared for PEACH BOTTOM ATOMIC POWER STATION Delta, Pennsylvania 17314 Prepared by NORMANDEAU ASSOCIATES, INC.

1921 River Road Drumore, Pennsylvania 17518 Normandeau Associates' Project Number 203 I 6 .003 December 2012

2012 Data Reporl on Intake Screen Sampling at the Peach Bottom Atomic Power Station

1.0 INTRODUCTION

Exelon's Peach Bottom Atomic Power Station (PBAPS) contracted Normandeau Associates, Inc. to conduct intake screen sampling during fall 2012. The data collection objective is two-fold: it fulfills Exelon's obligation to support the Susquehanna River's American shad restoration program as stated in the 2012 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.

2.0 METHODS Intake screen sampling was originally scheduled three days per week, (Monday, Wednesday, and Friday), with a two-person crew, from 29 October to 7 December, 2012. Two of the 17 scheduled sampling events (29 and 31 October) were cancelled due to poor/unsafe weather conditions resulting from Hurricane Sandy. Maintenance activities at the outer screen house on 7 November resulted in cancellation of sampling for that day. During the juvenile American shad outmigration period, Normandeau personnel communicated with PFBC 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. Peach Bottom personnel hoisted the bins out of the screen house to facilitate sampling and ensure the safety of the work crew. All fish observed in the bins (both Units 2 and 3) were identified and counted (if possible). In 2012, subsampling of certain species, (gizzard shad and bluegill), occurred when large numbers of fish or heavy debris loads were present in the sampling bins. Juvenile American shad that were suitable for analysis, (head and body intact), were counted, measured (total length in mm),

and preserved (frozen) prior to delivery to PFBC personnel.

3.0 RESULTS A total of 108,004 fish of29 taxa was collected; 23,588 from Unit 2 and 84,416 from Unit 3 (Table 1). Gizzard shad (78,528) and bluegill (28, 147) comprised nearly 99% of the total while all other species combined accounted for 1% of the total fish collected. Other species common in the collections were alewife (683), channel catfish (129), and green sunfish (101).

A total of29 juvenile American shad (Unit 2 = 10; Unit 3 = 19) were collected at Peach Bottom in 2012, (Table 2).

4.0

SUMMARY

Intake screen sampling was conducted during the peak of the juvenile American shad outmigration period in Conowingo Pond. The 2012 outmigration period may have been influenced by the occurrence of Hurricane Sandy in late October, 2012 as collection of 28 of the 29 juvenile American shad at Peach Bottom occurred on 2 and 5 November. The increase to river flow that occurred from this rain event may have triggered the outmigration of juvenile American shad to occur in a relatively narrow time period in 2012. Twenty-nine juvenile American shad were collected and provided to the PFBC from sampling activities at the PBAPS in 2012.

PBAP~uvAm . sha:l-Dec2012 Normaidea.t AS50Ciaes, Inc.

Table 1 Number of fish collected during intake screen sampling by unit at Peach Bottom Atomic Power Station, 2 November to 7 December 2012.

S(!ecies Unit2 Unit3 Total Alewife 427 256 683 American shad 10 19 29 Gizzard shad 16,399 62,129 78,528 Carp 4 28 32 Quill back 1 3 4 White sucker 0 1 1 Comely shiner 21 33 54 Spottail shiner 6 15 21 Spotfin shiner 4 21 25 Bluntnose minnow 1 2 3 Golden shiner 0 3 3 Fall fish 0 4 4 Banded killifish 0 1 Shorthead redhorse 1 1 2 Channel catfish 66 63 129 Flathead catfish 15 23 38 White perch 4 3 7 Rock bass 4 13 17 Green sunfish 8 93 101 Pumpkinseed 7 45 52 Bluegill 6,580 21,567 28,147 Smallmouth bass 2 5 7 Largemouth bass 4 30 34 White crappie 0 11 11 Black crappie 0 2 2 Tessellated darter 16 14 30 Yell ow perch ------- 2 --- --- 7 ---- - - 9 ------ -

Walleye 0 1 Logperch 6 23 29 TOTAL 23,588 84,416 108,004 PBAPSjuvAm.shad -December2012 Normandeau Associates, Inc.

Table 2 Number of juvenile American shad collected during intake screen sampling by unit at Peach Bottom Atomic Power Station, 2 November to 7 December, 2012.

Date Unit2 UnitJ Total 02 Nov 9 17 26 05 Nov 0 2 2 19Nov I 0 TOTAL JO 19 29 PBAPSJuvAm.shad- Oecember 2012 Normandeau As.ac/alas, Inc.