ML20235Q234

Aquatic Study Monthly Progress Rept for Aug 1987

ML20235Q234
Person / Time
Site:	Three Mile Island
Issue date:	09/30/1987
From:	RADIATION MANAGEMENT CORP. (RMC)
To:
Shared Package
ML20235P031	List: ML20235P029 ML20235Q234
References
NUDOCS 8710070535
Download: ML20235Q234 (13)

Text

1 THREE MILE ISLAND AQUATIC' STUDY MONTHLY PROGRESS REPORT FOR AUGUST 1987 i 1

1 I

Prepared For I

i l

l GPU Nuclear Corporation P. O. Box 480, Route 441 South  !

I Middletown, Pennsylvania 17057 i

l By l

{

l i

RMC Environmental Services 1921 River Road, P. O. Box 10 Drumore, Pennsylvania 17518 September 1987 t l

l

}

R _TERS

'/

l 'k

INTRODUCTION The objective of this monthly report is to document compliance with the nonradiological (aquatic) environmental monitoring programs specified in Sections 3.1.la(4),

3.1.2a., and 4.6.1 of the Environmental Technical i

Specification (ETS). These programs are being carried out as directed in the Environmental Controls Aquatic Sampling Manual. Program elements being conducted under contract to 1

GPU Nuclear Corporation include benthic macroinvertebrates, ichthyoplankton, fish population dynamics (seine and 1

l electrofishing), creel surveys, and water quality. The I

ultimate purpose of these studies is to obtain a database j i

sufficient to establish the natural fluctuations within the l

l l ecosystem and identify any significant biological alterations resulting from the Three Mile Island Nuclear l Station (TMINS).

Compliance with all programs specified in the ETS and detailed in the Aquatic Sampling Manual was achieved in k August 1987 (Table 1). Inclement weather resulted in changes to the TMINS Aquatic Sampling Schedule in August.  !

Ichthyoplankton sampling was rescheduled from 4 to 6 August j

due to thunderstorms.

l l

Data presented herein are considered provisional, pending subsequent proofing, analysis, and presentation in  !

the annual report.

l l

I l

i

i Benthic Macroinvertebrates Objective: To assess the abundance, distribution, and diversity of benthic macroinvertebrates at three stations in the vicinity of TMINS. I Progress: Replicate (4) macroinvertebrate samples were I collected at each of the three stations on 6 August 1987 (Table 1). Sorting of the 6 August samples has been completed; identification of the 11 May samples is complete. Analysis of the 4 June samples is in progress.

Ichthyoplankton l l

objective: To determine species composition, relative l l

abundance, density, and seasonal and spatial j l

distribution of ichthyoplankton at eight stations in the l vicinity of TMINS. I 1

Progress: Replicate (2) ichthyoplankton samples were taken at each of the eight stations on 6, 11, 18, and 25 August 1987 (Table 1). All samples collected through 25 August have been sorted; identifications have been completed through mid-June 1987. The TMI-EC audit of the ichthyoplankton field procedures was conducted on 18 1

i August 1987.

2

}

Seine i

Objective: To assess species composition, relative l abundance, seasonal and spatial distribution, condition factor, occurrence of parasites, anomalies, and fish l kills, and species diversity of fishes vulnerable to seine capture at six stations in the vicinity of TMINS.

Progress: Seine collections were ta!cen at each of the six stations on 5 and 17 August 1987 (Table 1).

Processing is completed through 22 June; work has begun ,

on the 13 July samples. Results of the June 1987 1

samples are being tabulated and will appear in the 'l 1

l September report. The TMI-EC audit of the seine field procedures was conducted on 17 August 1987.

1 Electrofishing I 1

Objective: To assess species composition, relative l

abundance, occurrence of parasites, anomalies, and species diversity of fishes vulnerable to electrofisher captured at six stations in the vicinity of TMINS.

Progress: Electrofishing at the six zones was completed on 10-11 and 19-20 August 1987 (Table 1). A combined total of 523 fish of 21 species was collected in August (Tables 2 and 3). Most fish (160 specimens) were collected at Station 4Al; most species (17) were taken 1

3 1

l

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at Station 4A1.. The catch was dominated by the redbreast sunfish, smallmouth bass, and pumpkinseed.

Gizzard shad and guillback were:also abundant.

. Ectoparasites and anomalies were observed on 33 fish; anchor worms-(Lernaea) were most prevalent. Redbreast 1 sunfish, smallmouth bass, and bluegill were"most l

commonly affected. The TMI-EC audit of the. j j electrofishing field procedures was. conducted on 19 l August 1987.

Creel Survey Objective: To investigate the extent and success of sportfishing, and determine angler' residence ~and use of catch, in the Susquehanna River near TMINS.

'I Progress: Creel surveys were conducted on 7, 16,.22, and.

27 August 1987 (Table 1). Interviews consisted of 282 anglers who fished a total of 567.50 hours5.787037e-4 days <br />0.0139 hours <br />8.267196e-5 weeks <br />1.9025e-5 months <br />,. caught 1140- I J

fish, and harvested 280 fish'(24.6% of.the total catch) l (Tables 4 through 7). The average catch per effort (c/e) and harvest.per effort were 2.01 and 0.49 per.

hour, respectively. Smallmouth bass, channel catfish, and walleye were the predominant species caught (459, 353, and 99 specimens, respectively). Fishing pressure:

was' greatest in the General Reservoir with 134' anglers interviewed and a total of 276.00 hours0 days <br />0 hours <br />0 weeks <br />0 months <br /> fished. Most 4

t __ o

r ,

I fish were caught in the General. Reservoir (510) but'most were harvested (174) from the York Haven Generating Station (YHGS). The highest catch per effort'(4.81) and harvest per effort (0.78) occurred at the West Dam and YHGS areas,-respectively. Anglers were predominantly residents;of' York or Dauphin counties and the' majority, reported that they eat or would eat a portion of their- 1 I

catch. The TMI-EC audit of'the~ creel survey. field procedures was conducted on 27 August 1987.

.j Water Quality Analysis

~

Objective: To measure select physical.and chemical parameters of the Susquehanna River in'the vicinity-of TMINS concurrent with General Ecological Survey samples.. ]

-i Progress: Water quality samples'were collected on 6 August 1987 and forwarded to TMI-EC (Table.1). . Selected water quality parameters.were also measured at sampling times and locations described in the Aquatic Sampling Manual.

-i i

5 1

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m___________________________._____.

TABLE 1 Sampling conducted in August 1987 in compliance with.Three Mile Island Nuclear Station's Environmental Technical Specifications.

X's equal week in which program / work completed.

PROGRAM August 1-8 9-15 16-22 23-29 30-31 Benthic Macroinvertebrates X Ichthyoplankton X X X X Seine X X Electrofishing X X ,

i Creel Survey X XX X Water Quality Analysis X l

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