ML19064B227

Data Report or Intake Screen Sampling at Peach Bottom Atomic Power Station in 2011

ML19064B227
Person / Time
Site:	Peach Bottom
Issue date:	12/02/2011
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: ML19064B227 (5)

Text

DATA REPORT ON INTAKE SCREEN SAMPLING AT PEACH BOTTOM ATOMIC POWER STATION IN2011 December 2011

DATA REPORT ON INTAKE SCREEN SAMPLING AT PEACH BOTTOM ATOMIC POWER STATION IN 2011 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 20316 .003 December 2011

2011 Data Report 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 2011. 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 2011 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 24 October to 2 December, 2011. Nine of the 17 scheduled sampling events were cancelled due to maintenance activities at the outer screen house during the juvenile American shad outgration 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. 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 2011, subsampling of certain species, (gizzard shad), due to large numbers or heavy debris loads did not occur. 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 5,738 fish of23 taxa was collected; 2,591 from Unit 2 and 3,147 from Unit 3 (Table 1).

Gizzard shad (3,111) and bluegill (2,411) comprised 96% of the total while all other species combined accounted for 4% of the total fish collected. Other species common in the collections were channel catfish (69), and comely shiner (37).

No juvenile American shad were collected at Peach Bottom in 2011, (Table 2).

4.0

SUMMARY

Intake screen sampling was conducted during a portion of the juvenile American shad outmigration period in Conowingo Pond. The 2011 outmigration period may have occurred earlier due to heavy rainfall events in September from the remnants of Hurricane Irene and Tropical storm Lee. The extremely high river flows that occurred due to these rain events may have forced juvenile American shad to leave the Susquehanna River prematurely in 2011. No juvenile American shad were collected or provided to the PFBC from sampling activities at the PBAPS in 2011.

PBAP~ uvAm. sha:l-Dec 2011 Normaidea.J AS&>Ci ates, Inc.

Table 1 Number offish collected during intake screen sampling by unit at Peach Bottom Atomic Power Station, 2 November to 2 December 2011.

Species Unit2 Unit3 Total Alewife 9 16 25 American shad 0 0 0 Gizzard shad l, 117 1,994 3,111 Gold fish 0 1 Comely shiner 15 22 37 Spottail shiner 0 1 Spotfin shiner 8 5 13 Fathead minnow 0 1 Golden shiner 2 3 Shorthead redhorse 0 3 3 Channel catfish 28 41 69 Flathead catfish 8 5 13 Tiger muskie 0 1 Rock bass 5 6 Green sunfish 2 3 Pumpkinseed 0 1 Bluegill 1,394 1,017 2,411 Redbreast sunfish 2 4 6 Largemouth bass 2 10 12 White crappie 2 12 14 Black crappie 0 2 2 Tessellated darter 0 1 Yell ow perch 0 3 3 Logperch 0 1 TOTAL 2,591 3,147 5,738 PBAPSjuvAm.shad -December2011 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 2 December, 2011.

Date Unit 2 UnitJ Total 2 November - 2 December 0 0 0 TOTAL 0 0 0 PBAPSjuvAm.shad- Oecembor 2011 Normandeau Assoc/ates, Inc.