ML19064B225

Data Report on Intake Screen Sampling at Peach Bottom Atomic Power Station in 2010

ML19064B225
Person / Time
Site:	Peach Bottom
Issue date:	12/01/2010
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: ML19064B225 (5)

Text

DATA REPORT ON INTAKE SCREEN SAMPLING AT PEACH BOTTOM ATOMIC POWER STATION IN2010 December 2010

DATA REPORT ON INTAKE SCREEN SAMPLING AT PEACH BOTTOM ATOMIC POWER STATION IN 2010 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 2010 ---------

2010 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 2010. 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 2010 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 scheduled three days per week, (Monday, Wednesday, and Friday), with a two-person crew, from 25 October to 10 December, 2010. Nineteen of the 20 scheduled sampling events were conducted during the outmigration period. Sampling did not occur on 3 December, 2010 due to high river flows and constant automatic operation of the intake screens which prevented sampling due to lack of available bins that could be set aside for inspection. 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 2010, subsampling of certain species, (gizzard shad), due to large numbers or heavy debris loads occurred infrequently. 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 14,692 fish of25 taxa, including crayfish, was collected; 5,726 from Unit 2 and 8,977 from Unit 3 (Table 1). Gizzard shad, (7,791), comprised 53%, while bluegill, (5,533), accounted for 37%

of the total fish collected. Other species common in the remaining 10% of the collections were channel catfish, (602), alewife, (510), and green sunfish, (70).

A total of 11 juvenile American shad were collected (Table 2); 6 collected at Unit 2 and 5 collected at Unit 3. Juvenile shad were collected throughout the sampling period with shad collected from Unit 2 on 29 October, 03, 15, and 19 November, and from Unit 3 on 01, 08, 10, 22 November, and 01 December.

4.0

SUMMARY

Intake screen sampling was conducted during the juvenile American shad outmigration period in Conowingo Pond. A total of 11 juvenile American shad were provided to the PFBC for otolith analysis and stock determination from the intake screen sampling. In addition to these 11 juvenile shad, only 7 additional shad, (2 from Conowingo strainer sampling, 4 from haul seining efforts upriver, and 1 while electrofishing in Lake Aldred) were collected during the fall outmigration period in 2010. A total of 510 alewife was also collected, and are believed to be a residualized population present in Conowingo pond as no alewife were observed passing through the Conowingo East fish lift in 2010. No blueback herring were collected during the 2010 sampling at Peach Bottom.

PBAP~uvAm.9'la:l-Dec2010 Normaidea.I AS9Jciaes, Inc.

Table 1 Number of fish collected during intake screen sampling by unit at Peach Bottom Atomic Power Station, 25 October to 10 December 2010.

S~ecies Unit 2 Unit3 Total American shad 6 5 11 Alewife 137 373 510 Blueback herring 0 0 0 Gizzard shad 2,849 4,942 7,791 Carp 0 2 2 Comely shiner 11 9 20 Spottail shiner 3 7 10 Spotfin shiner 5 5 10 Bluntnose minnow 2 3 5 Quill back 0 2 2 Shorthead redhorse 6 7 Channel catfish 137 465 602 Flathead catfish 2 3 5 White sucker 0 1 1 Rock bass 12 30 42 Green sunfish 20 50 70 White Perch 0 1 Bluegill 2,513 3,020 5,533 Largemouth bass 2 0 2 White crappie 3 18 21 Black crappie 0 3 3 Tessellated darter 10 22 32 Walleye 0 1 Yellow perch 0 2 2 Logperch 2 5 7 Crayfish 9 4 13 TOTAL 5,726 8,977 14,692 -- ---

PBAPSjuvAm.shad -December2010 Normandeau Associates, Inc.

Table 2 Number of juvenile American shad collected during intake screen sampling by unit at Peach Bottom Atomic Power Station, 25 October to 10 December, 2010.

Date Unit2 Unit3 Total 29 Oct 0 OJ Nov 0 J 03 Nov 2 0 2 08 Nov 0 IONov 0 JS Nov 2 0 2 J9Nov 0 22 Nov 0 OJ Dec 0 TOTAL 6 5 11 PBAPSJwAm.shad- December 2010 Normandeau Associates, Inc.