Text

1987 Annual Environ Rept Nonradiological Beaver Valley Power Station Units 1 & 2
	ML20153H636
Person / Time
Site:	Beaver Valley
Issue date:	12/31/1987
From:	Cody W, Kenderes G, Shema R; AQUATIC SYSTEMS CORP.
To:	;
Shared Package
ML20153H635	List: ML20153H633; ML20153H636;
References
	NUDOCS 8805130085
	Download: ML20153H636 (156)
	v • d • e

- - - _ - _ . _ _ - _ _ _ .

1987 ANNUAL ENVIRONMENTAL REPORT MON-RADIOLOGICAL DUQUESNE LIGHT COMPANY BEAVER VALLEY PONER STATION UNITS NO. 1 & 2 1

l 42, I l 8805130085 880429 PDR ADOCK0500g4 R

i l

l e

1987 ANNUAL INVIROlGGNTAL REPORT ION-RADIOIDGICAL DUQUESNE LIGEf COMPANY BEAVER VALLEY PONER STATION UNITS NO. 1 & 2 5

Prepared by:

Robert Louis Shema William R. Cody Gary J. Kenderes John J. Kraeuter Michael R. Noel Aquatic Syster:s Corporation Pittsburgh, Pennsylvania and Donald S. Cherry, I a.D. .,

Virginia Polytechnic Institute and State University Blacksburg, Virginia and I

J. Wayne McIntire Duquesne Light Company Shippingport, Pennsylvania i

C. . _ ___

TABLE OF CONTENTS Page LIST OF FIGURES.............................................. iv LIST OF TABLES............................................... vi I. IRIRODUCTION................................................. 1 A. SCOPE AND OBJECfIVES OF THE PROGRAM. . . . . . . . . . . . . . . . . . . . . . 1 B. S I TE D ES C RI PT ION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 II.

SUMMARY

AND CONCLUSIONS....................... .............. 7 III. ANALYSIS OF SIGNIFICANT DiVIRONMENTAL CHANGE. . . . . . . . . . . . . . . . . 12 IV. MONITORING NON-RADIOLOGICAL EFFLUENTS........................ 13 A. MONITORING CHEMICAL EFFLUENTS........................... 13 B. HERB I C I D ES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 V. AQUATIC MONITORING PROGRAM................................... 14 A. INTRODUCTION............................................. 14 B. BENTHOS.................................................. 17 Objectives........................................... 17 Methods.............................................. 17 Habitats............................................. 17 Community Structure and Spatial Distr ibution. . . . . . . . . 24 Comparison of Control and Non-Control Stations........................................... 24 i

Comparison of Preoperational and Operational Data............................................... 29 S umma r y an d Conc lu s ion s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 I

l C. PHYTOPLANKTON,........................................... 35 Objectives................................-.......... 35 Methods.............................................. 35 Seasonal Distribution................................ 35 Comparison of Control and Non-Control Tr8nSectS.......................................... 43 Comparison of Preoperational and Operational Data............................................... 43 Summary and Conclusions.............................. 46 i

TABLE OF CONTENTS (Continued)

Page D. Z O3 P LANK TON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47 Objectives........................................... 47 Me t h od s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47 Seasonal Distribution................................ 47 Comparison of Control and Non-Control Transects.......................................... 56 Comparison of Preoperational and Operational Data............................................... 56 Summary and Conclusions.............................. 61 E. FISH ................................................... 62 Objective............................................ 62 Methods.............................................. 62 Results.............................................. 64 Comparison of Control and Non-Control Transects.......................................... 71 Comparison of Preoperational and Operational Data............................................... 71 Summary and Conclusions.............................. 78 F. I C HT HYO P LANK TON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80 Objective............................................ 80 Methods.............................................. 80 Results.............................................. 80 Comparison of Preoperational and Operational Data............................................... 86 Summary and Conclusions.............................. 86 G. FISH IMPINGEMENT......................................... 88 Objective............................................ 88 Methods.............................................. 88 i Re s u l t s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88

Comparison of Impinged and River Fish................ 96 I

Comparison of Operating and Non-Operating Intake Bay Collections............................. 96 Summary and Conclusions.............................. 104 H. PLANKTON ENTRAINMENT..................................... 105

1. Ichthyoplankton...................................... 105 Objectives........................................... 105 Methods.............................................. 105 Results.............................................. 105 Seasonal Distribution................................ 111 Spatial Distribution................................. 111 Summary and Conclusions.............................. 111 11

TABLE OF CONTENTS (Continued)

Page

2. Phytoplankton........................................ 112 Objectives........................................... 112 Methods.............................................. 112 Comparison of Entrainment and River Samples. . . . . . . . . . 112 S umma ry a nd Conclu s ion s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113

3. Zooplankton.......................................... 113 Objectives........................................... 113 Me t h od s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113 Comparison of Entrainment and River Samples. . . . . . . . . . 113 Summary and Conclusions.............................. 114 I. Co r b i cula MON ITORING P ROG RAM. . . . . . . . . . . . . . . . . . . . ' . . . . . . . . 115 Introduction......................................... 115

1. Monitoring........................................... 115 Objectives........................................... 115 Methods.............................................. 117 Results.............................................. 119 S umma r y . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131 1

2. Growth Study......................................... 133 Objective............................................ 133 Methods.............................................. 133 Results.............................................. 135 S umma r y . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135

3. Spawning Study....................................... 139 Objective............................................ 139 Methods.............................................. 139 Results.............................................. 140 I

Summary.............................................. 140 VI. RE FE RE N C E S . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144 111

LIST OF FIGURES FIGURE Page I-l VIEW OF THE BEAVER VALLEY POWER STATION, BVPS............. 3 I-2 LOCATION OF STUDY AREA, BEAVER VALLEY POWER STATION, SHIPPINGPORT, PENNSYLVANIA....................... 4 I-3 OHIO RIVER FLOW (cfs) AND TEMPERATURE ( F)

RECORDED BY THE U. S. ARMY CORPS OF ENGINEERS FOR THE NDf CUMBERLAND POOL, 1987, BVPS............................... 5 V-A-1 SAMPLING TRANSECTS IN THE VICINITY OF THE BEAVCR VALLEY POWER STATION ..................................... 15 V-B-1 BENTHOS SAMPLING STATIONS, BVPS........................... 18 V-B-2 MEAN PERCENT COMPOSITION OF THE BENTHOS COMMUNITY IN THE OHIO RIVER NEAR BVPS DURING PREOPERATIONAL AND OPERATIONAL YEARS......................................... 28 V-C-1 MONTHLY PHYTOPLANKTON DENSITIES IN THE OHIO RIVER DURING PREOPERATIONAL (1974-1975) AND OPERATIONAL (1976-1987) YEARS, BVPS................................... 38 V-C-2 PHYTOPIANKTON GROUP DDiSITIES FOR ENTRAINMEh'T SAMPLES, 1987, BVPS....................................... 39 V-D-1 MONTHL'l ZOOPLANKTON DENSITIES IN THE OHIO RIVER DURING PREOPERATIONAL (1974-1975) AND OPERATIONAL (1976-1987) YEARS, BVPS................................... 50 V-D-2 ZOOPLANKTON GROUP DDiSITIES ECR DITRAINMENT SAMPLES, 1987, BVPS................................................ 55 V-E-1 FISH SAMPLING STATIONS, BVPS.............................. 63 I

l V-F-1 ICHTHYOPLANKTON SAMPLII.7 STATIONS, BVPS................... 81 I

V-G-1 INTAKE STRUCTURE, BVPS.................................... 89 V-I-l PIOTO3RAPHS OF C_orbicula CDLLECTED, BVPS.................. 116 V-I-2 Corbicula !ONITORING PROGRAM SAMPLING STATIONS OF THE LOWER RESERVOIR OF UNIT I COOLING TCMER, BVPS. . . . . . 118 V-I-3 Corbicula HONITORING PROGRAM SAMPLING STATIONS, O H I O RI VER SY S TEM , BVPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120 iv

k LIST OF FIGURES (Continued) ,.

. s.

FIGURE Page ,

V-I-4 Corbicula MONITORING PR(X; RAM SAMPLING STATIONS, ,

INTAKE STRUCTURE, BVPS.................................... 125 i V-I-5

SUMMARY

OF Corbicula COLLECTED IN IMPINGDiENT SURVEYS FOR ONE 24-HOUR PERIOD PER WEEK, 1987, BVPS....... 132 V-I-6

SUMMARY

OF Corbicula GROWTH DATA A!D WATER TEMPERATURES IN INTAKE STRUCTURE, BVPS.................... 137 V-I-7

SUMMARY

OF Corbicula GRCPfrH DATA AND WATER -

TEMPERATURES IN UNIT 1 COOLING TOWER, BVPS................ 138 V-I-8 RESULTS OF Corbicula SPAWNING STUDY IN INTAKE STRUCTURE, BVPS................................. 141 V-I-9 RESULTS OF Corbicula SPAWNING STUDY IN UNIT 1 COOLING WWER, BVPS............................. 142 l

l v

t o

i LIST OF TABLES .

TABLE Page I-l OHIO RIVER FLOW (cfs) AND TEMPERATURE (OF)

RECORDED BY THE U. S. ARMY CORPS OF ENGINEERS FOR THE NEW CUMBERLAND POOL, 1987, BVPS........................... 6 V-A-1 AQUATIC MONITORING PROGRAM SAMPLING DATES,1987, BVPS...................................................... 16 V-B-1 SYSTEMATIC LIST OF MACROINVERTEBRATES COLLECTED IN PREOPERATIONAL AND OPERATIONAL YEARS IN THE OHIO RI VER N EAR BVP S . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 2

V-B-2 MEAN NUMBER OF MACROINVERTEBRATES (Number /m ) AND PERCENT COMPOSITION OF OLIGOCHAETA, CHIRONOMIDAE, MOLLUSCA AND OTHER ORGANISMS, 1987, BVPS.................. 25 2

V-B-3 BENTHIC MACROINVERTEBRATE DDiSITIES (Number /m ),

MEAN OF TRIPLICATE FOR BACK CHANNEL AND DUPLICATE SAMPLES COLLECTED IN THE MAIN CHANNEL OHIO RIVER, MAY 13, 1987, BVPS........................................ 26 2

V-B-4 BENTHIC MACROINVERTEBRATE DDISITIES (Number /m ),

MEAN OF TRIPLICATE IVR BACK CHANNEL AND DUPLICATE SAMPLES COLLECTED IN THE MAIN CHANNEL OHIO RIVER, SEPTEMBER 16, 1987, BVPS.................................. 27 V-B-5 MEAN DIVERSITY VALUES FOR BDITHIC MACROINVERTEBRATES COLLECTED IN THE OHIO RIVER, 1987, BVPS................... 30 2

V-B-6 BENTHIC MACROINVERTEBRATE DDISITIES (Number /m ) FOR STATION 1 (CONTROL) AND STATION 2B (NON-CONTROL) DURING PREOPERATIONAL AND OPERATIONAL YEARS, BVPS................ 31 V-C-1 MONTHLY PHYTOPLANKTON GROUP DDISITIES (Number /ml)

AND PERCENT COMPOSITION FROM ENTRAINMDR SAMPLES, 1987, BVPS................................................ 37 V-C-2 PHY'IOPLANKTON DIVERSITY INDICES BY MO!EH FOR .

ENTRAINMDIT SAMPLES, 1987, BVPS........................... 40 . .

V-C-3 DDiSITIES (Number /ml) OF MOST ABUNDAIR PHYTOPLANKTON TAXA COLLECTED FROM ENTRAINMDIT SAMPLES, JANUARY THROUG H D EC D4 3ER 19 8 7, BVPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 V-C-4 PHYMPLANK' ION DIVERSITY INDICES (MEAN OF ALL SA M GS 1973 TO 1987) NEW CUMBERIA'?D POOL OF THE O H I O RI VE R , BVP S . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 I

vi

LIST OF TABLES (Continued)

TABLE Page V-D-1 MONTHLY ZOOPLANKTON GROUP DDISITIES (Number / liter)

AND PERCDIT COMPOSITION FROM ENTRAINMDC SAMPLES, 1987, DVPS................................................ 43 V-D-2 MEAN ZOOPLANKION DENSITIES (Number / liter) BY MO!CH FROM 1973 THROUGH 1987, OHIO RIVER AND BVPS. . . . . . . . . . . . . . . 51 V-D-3 DENSITIES (Number / liter) OF MOST ABUNDANT ZOOPLANKTON TAXA COLLECTED FROM ENTRAI!ME!C SAMPLES, JANUARY THROUGH DECEMBER 1987, BVPS............................... 53 V-D-4 ZOOPLANKTON DIVERSITY INDICES BY MONTH FOR ENTRAI!NE!C SAMPLES, 1987, BVPS....................................... 57 V-D-5 MEAN ZOOPLANKTON DIVERSITY INDICES BY MONTH FROM 1973 THROUGH 19 87 IN THE OHIO RIVER NEAR BVPS. . . . . . . . . . . . . . . . . . 59 V-E-1 FAMILIES AND SPECIES OF FISH COLLECTED IN THE NEW CUMBERLAND POOL OF THE OHIO RIVER, 1970-1987, BVPS........ 65 V-E-2 NUMBER OF FISH OOLLECTED AT VARIOUS TRANSECTS BY GILL NET (G) , ELECTROFISHING (E) , AND MINNOW TRAP (M) IN THE NC4 CUMBERLAND POOL OF THE OHIO RIVER, 1987, BVPS................................................ 68 V-E-3 NUMBER OF FISH COLLECTED PER MONTH BY GILL NET (G),

l ELECTROFISHING (E) , AND MINNOW TRAP (M) IN THE NEW i CUMBERLAND POOL OF THE OHIO RIVER, 198 7, BVPS . . . . . . . . . . . . . 69 V-E-4 NUMBER OF FISH COLLECTED BY GILL NET (G), ELECTROFISHING (E), AND MINNOW TRAP (M) AT TRANSECTS IN THE NUd CUMBERLAND POOL OF THE OHIO RIVER , 19 8 7, BVPS . . . . . . . . . . . . . . . . . . . . . . . . 70 V-E-5 ELECTROFISHING CATCH MEANS (X) AT TRANSECTS IN THE NEW CUMBERLAND POOL OF THE OHIO RIVER, 1974-1987, BVPS........ 72 V-E-6 GILL NET CATCH MEANS (X) AT TRANSECTS IN THE NEW CUMBERLAND POOL OF THE OHIO RIVER, 1974-1987, BVPS........ 76 V-F-1 NUMBER AND DDISITY OF FIQH EGGS, LARVAE, JUVENILES, AND ADULTS (Number /100 m*) COLLECTED WITH A 0.5 m PLANKTON NCr IN THE OHIO RIVER BACK CHANNEL OF PHILLIS ISLAND (STATION 2B) NEAR BVPS, 1987............... 82 vii

LIST OF TABLES (Continued) 3MLE .P. tilt.

V-F-2 3 DENSITY OF ICHTHYOPLANKTON (Number /100 m ) COLLECTED IN THE OHIO RIVER BACK CHANNEL OF PHILLIS ISLAND l (STATION 2B) NEAR BVPS, 1973-1974, 1976-1987.............. 87 l V-G-1 FISH COLLECTED DURING THE IMPINGEMENT SURVEYS, 1976-1987, BVPS........................................... 90 V-G-2

SUMMARY

OF FISH COLLECTED IN IMPINGEMENT SURVEYS CONDUCTED FOR ONE 24 BOUR PERIOD PER WEEK DURING 1987, BVPS................................................ 92 V-G-3 SUW ARY OF IMPINGIMEIC SURVEYS DATA FOR 1987, BVPS........ 93 V-G-4

SUMMARY

OF FISH COL".ECTED IN IMPINGEMENT SURVEYS, 1976-1987, BVPS........................................... 95 V-G-5 NUMBER AND PERCENT OF ANNUAL TOTAL OF FISH COLLECTED IN IMPINGMEIR SURVEYS AND IN tiiE NEW CtBIBERLAND POOL OF THE OHIO RIVER, 1987, BVPS.......................... .. 97 V-G-6 SUMARY OF CRAYFISH COLLECTED IN IMPINGMERC SURVEYS CONDUCTED POR ONE 24-800R PERIOD PER WEEK,1987, BVPS. . . . . 98 V-G-7 SUMARY OF Corbicula COLLECTED DURING IMPINGENDR SURVEYS FOR ONE 24-BOUR PERIOD PER WEzK, 1987, BVPS............... 100 V-G-8 SUM ARY OF M LLUSKS (OtiiER THAN Corbicula) AND DRAGONFLIES COLLECTED IN IMPINGEMERC SURVEYS CONDUCTED FOR ONE 24-BOUR PERIOD PER WEEK , 19 8 7, BVPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102 V-H-1 NUMBERANDDENSITYOFFIgHBGGS, LARVAE, JUVENILES, AIO ADULTS (Number /100 m ) COLLECTED WITH A 0.5 m PLANKTON NET AT THE BfTRAIMENT RIVER TRANSECT IN THE OHIO RIVER NEAR BVPS, 1987............................ 106 V-I-1A Corbicula COLLECTED IN UNIT 1 COOLING TOWER A P RI L 2 9 , 19 8 7 , BVPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121 V-I-1B Corbicula COLLECTED IN UNIT 1 COOLING TONER DECEMBER 15, 1987, BVPS................................... 122 V-I-lc Corbicula COLLECTED IN UNIT 2 COOLING TOWER JUNE 5, 1987, EVPS........................................ 124 V-1-2 Corbicula COLLECTED IN THE OH10 RIVER MAY 13, 1987, 3VPS........................................ 126 viii

LIST OF TABLES (Continued)

IbEE- ESEL V-I-3 Corbicula COLLECTED IN THE OHIO RIVER SEPTEMBER 16 & 17, 1987, BVPS............................. 127 V-I-4 2 Corbicula DENSITIES (clams /m ) SUle(ARIZED FRON BENTHIC MACROINVERTERRATE COLLECTIONS 1973 THA00GH 1987, BVPS................................................ 128 V-I-5

SUMMARY

OF Corbicula COLLECTED DURING IMPINGDGift SURVEYS FOR ONE 24-HOUR PERICO PER WEEK, 1987, BVPS . . . . . . . . . . . . . . . 129 V-I-6 RANGES OF Corbicula SHELL LENGTHS MEASURED IVR G ROWTH STUDY , 19 8 7, BVPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134 V-I-7 RESULTS OF _C_orbiculb_ GROWTH STUDY IN INTAKE STRUCTURE AND UNIT 1 COOLING 7tifER, BVPS............................ 136 ix

DUQUESNE LIGHT COMPANY 1987 ANNUAL DNIRCNMENTAL REPORT I. INTRODUCTION This report presents a suraary of the non-radiological environmental data collected by Duquesne Light Company (DLCo) during calendar year 1987, for the Beaver Valley Power Station (BVPS) Units 1 and 2, Operating License Numbers DPR-66 and NPF-73. This is primarily an optional program, since the Nuclear Regulatory Coraission (NRC) on February 26, 1980, granted DLCo's request to delete all of the aquatic monitoring program, with the exception of fish impingement (Amendment No. 25), from the Environmental Technical Specifications (ETS), and in 1983, dropped the fish impingement studies from the ETS program of required sampling along with non-radiological water quality requirements. However, in the interest of providing a non-disruptive data base DLCo is continuing the Aquatic Monitoring Studies.

A. SCOPE AND OBJECTIVES OF THE PROGRAM The objectives of the 1987 environmental program weres (1) to assess the possible environmental impact of plant operation (including impingement and entrainment) on the plankton, benthos, fish, and ichthyoplankton coraunities in the Ohio River, (2) to provide a sampling program for establishing a continuing data base, I (3) to evaluate the presence of Corbicula at the BVPS and to assess the population of Corbicula in the Ohio River, and (4) to study the growth and reproduction of Corbicula in the intake structure and cooling towers of BVPS.

B. SITE DESCRIPTION BVPS is located on the south bank of the Ohio River in the Borough of Shipping por t , Beaver County, Pennsylvania, on a 501 acre tract of land.

The decoraissioned Shippingport Station shares the site with BVPS.

1

DUQUESNE LIGHT COMPANY 1987 ANNUAL ENVIRONMENTAL REPORT Figure I-l shows a view of both stations. The site is approximately 1 mile (1.6 km) from Midland, Pennsylvania; 5 miles (8 km) from East Liverpool, Ohio; and 25 miles (40 km) from Pittsburgh, Pennsylvania.

~

Figure I-2 shows ' the site location in relation to the principal popula-tion centers. Population density in the immediate vicinity of the site is relatively low. The population within a 5 mile (8 km) radius of the plant is approximately 18,000 and the only area of concentrated popula-

' )n is the Borough of Midland, Pennsylvania, which has a population of oximately 4,000.

s site lies along the Ohio River in a valley which has a gradual slope extending from the river (elevation 665 ft. (203 m) above sea level) to an elevation of 1,160 ft. (354 m) along a ridge south of BVPS. Plant entrance elevation at the station is approximately 735 ft. (224 m) above sea level.

The station is situated on the Ohio River at river mile 34.8, at a loca-tion on the New Cumberland Pool that is 3.3 river miles (5.3 km) down-stream from Montgomery Lock and Dam and 19.4 miles (31.2 km) up-stream from New Cumberland Lock and Dam. The Pennsylvania-Ohio-West Virginia border is 5.2 river miles (8.4 km) downstream from the site. The river flow is regulated by a ser ies of dams and reservoirs on the Beaver, Allegheny, Monongahela, and Ohio Rivers and their tributaties. Flow gen- r erally varies from 5,000 to 100,000 cubic feet per second (cf s) . The range of flows in 1987 is shown on Figure I-3 as well as Table I-1.

Ohio River water temperatures generally vary from 32 0 to 82 0F (0 to 28 C) . Minimum and maximum temperatures generally occur in January and July / August, respectively. During 1987, minimum temperatures were observed in January and maximum temperatures in July and August (see Figures I-3 and Table I-1).

BVPS Unit 1 and 2 have a thermal rating of 2,660 megawatts (Mw) . Unit 1 and 2 have a electrical rating of 835 Mw and 836 Mw, respectively. The circulating water systems are a closed cycle system using a cooling tower i to minimize heat released to the Ohio River. Commercial operation of I

BVPS Unit 1 began in 1976 and Unit 2 began in 1987.

s._,+_ - m - ms DUQUESN3 J.IGiff COMPANY 1987 ANNUAL ENVIRONMENTAL REPORT

['r , j. .

' ee

. ,T "

{~.

v. .

, , . v.c*ff

g,';

p.

(j

/h.,

4

~

[yi ~

flfkq(e i '

p p

n w

v q+v u + ., . mg e y .

,e s , v -

f

~~

h e :

m r .-i ,yr j, -

' f, ,

,g g

6 1 .

' gm

k. + -

B ,

lI TK (\ '

$( ?

lB k i + f B y .'

9 4

y y

l

, i~ .

L s

t

....-.,. ~ '

'r j

w, ) ,

s T;f - ) L;

, 'l-i lskhr l{' e I

, l

'4 . .

t%>;$ ,

4 5,_% .

I d J 6t de: L 1.

t ss,i - .. 4 l- _a# ,

I

DUQUESNE LIGiff COMPANY l 1987 ANNUE ENVIRONMENTE REPORT YuZ e

g y.. A-. -.-, _ .

m, r.. c. h s

/

. ~ ,/

muse S s ,,,,

e es Stavle WALLEY era stances ara st=5ac'

' )

e m.. sus l s t ,

-...n, O

il . ~~ ,

r 1

- ao o ao 48% i 5 t

'.il O'JND '

Bl4VIR VALLIY i PontR STATCN

\'JPelf

~

]

n ys d N'[,,'h

.**~.,/

'" i

('g **

5 Stait In "ILti FIGURE I-2 LOCATION OF STUDY AREA, BEAVER VALLEY POWER STATION, SHIPPINGPORT, PENNSYLVANIA BVPS 4

DUQUESNE LIGiff COMPANY 1987 ANNUAL ENVIRONMENTAL REPORT U WCNTHLY WIN + WCNTHLY AVE O WCNTHLY WAX 160 150 -

140 -

120 -

11 0 -

a n 100 -

] 90 -

2 80 - 3

~

70 -

$ 60 --

g 50 -

~,

[

40 -

o_

N I O .- n 6 s s s s e s a s s .

J F W A W J J A S o N D 90 80 -

4 70 -

C L

w 60 -

5 7

x y 50 -

a \,,

40 -

30 -

20 . . . . . . . . . . . .

J F W A W J J A S O N D Wotau FIGURE I-3 OHIO RIVER FLOW (cfs) AND TEMPERATURE (0 F)

RECORDED BY THE U.S. ARMY CORPS OF ENGINEERS FOR THE NEW CUMBERLAND POOL, 1987 BVPS 5

TABLE I-l OHIO RIVER FIDW (cfs) AND TEMPERATURE ( F) RECORDED BY THE U.S. ARMY CORPS OF ENGINEERS FOR THE NEW COMBERLAND POOL, 1987, BVPS U

S Jan Feb Mar Apr Mal Jun Jul Aug M Oct Nov Dec b Flow (cfs x 10 3) z-Monthly Maximum 82.0 57.0 86.0 138.0 40,0 45.5 107.0 28.0 73.0 32.0 80.5 80.0 "

C Monthly Average 33.7 26.7 36.5 81.4 28.8 18.2 27.7 12.2 32.0 21.0 21.6 55.1 - 8 Monthly Minimum 19.0 14.0 13.9 32.5 14.0 11.5 5.5 5.0 8.0 10.5 12.5 35.0 Temperature ( F) E 3

Monthly Maximum 35 38 45 57 69 79 83 83 75 64 56 45 4 Monthly Average 33 34 40 47 61 76 79 81 70 58 50 41 Monthly Minimum 29 32 37 42 52 74 76 75 64 53 39 37

DUQUESNE LIGiff COMPANY 1987. ANNUAL ENVIRONMENTAL REPORT II. SUPG4ARY AND CONCLUSIONS The 1987 BVPS Units 1 and 2 Non-Radiological Environmental Monitoring Program included surveillance and field sampling of Ohio River aquatic life. This is the twelf th year of operational monitoring for Unit 1 and, as in the previous operational monitoring years, no evidence of adverse environmental impact to the aquatic life in the Ohio River near BVPS was observed. BVPS Unit 2 went into commercial operation on November 17, 1987.

The aquatic environmental monitoring program included studies ofs benthos, fish, ichthyoplankton, impingement, plankton entrainment, and Corbicula. Sampling was conducted for benthos and fish upstream and downstream of the plant during 1987 to assess potential impacts of BVPS discharges. These data were also compared to preoperational and other operational data to assess long term trends. Impingement and entrainment data were examined to determine the impact of withdrawing river water for in-plant use. Corbicula studies were initiated to determine the presence of these clams in the Ohio River and their growth and reproduction inside the plant. The following paragraphs summarize these findings.

BENTHOS. Substrate was probably the most important factor controlling the distribution and abundance of the benthic macroinvertebrates in the Ohio River near BVPS. Soft muck-type substrates along the shoreline were conducive to worm and midge proliferation, while limiting macroinverte-brates which require a mare stable bottom. At the shoreline stations, Oligochae ta accounted for 83% of the macrobenthos collected, whereas Chironomidae and Mollusca each accounted for about 134 and 34 respec-tively.

Community structure has changed little since preoperational years and there was no evidence that BVPS operations were affecting the benthic community of the Ohio River.

PHYTOPLANKTON. The phytoplankton community of the Ohio River near BVPS exhibited a seasonal pattern similar to that observed in previous 7

DUQUESNE LIG!ff COMPANY 1987 ANNUAL ENVIRONMENTAL REPORT years. This pattern is common to temperate, lotic environments. Total cell densities were within the range observed during previous years.

Diversity indices of phytoplankton were similar or lower to those previously observed near BVPS.

ZOOPLANKTON. Zooplankton densities throughout 1987 were typical of the temperate zooplankton community found in large river habitats. Total densities exceeded the range of those reported in previous years.

Populations developed highest densities in May and a secondary peak occurred in November. Protozoans and rotifers were always predominant.

Common and abundant taxa in 1987 were similar to those reported during preoperational and other operational years. Shannon-Weiner diversity, number of species, and evenness were within the ranges of preceding years. Based on the data collected during the twelve operating years (1976 through 1987) and the three preoperational years (1973 through 1975), it is concluded that the overall abundance and species composition of the zooplankton in the Ohio River near BVPS has remained stable and possibly improved slightly over the fif teen year period from 1973 to 1987. The data indicate that increased turbidity and current from high water conditions have the strongest effects of delaying the population peaks and temporarily decreasing total zooplankton densities in the Ohio River near BVPS.

FISH. The fish community of the Ohio River in the vicinity of BVPS has l been sampled f rom 1970 to present, using several types of gear s electro-fishing, gill netting, and periodically, minnow traps and seines. The results of these fish surveys show normal community structure based on species composition and relative abundance. In all the surveys since 1970, forage species (minnows ar.d shiners) were collected in the highest numbers. This indicates a normal fish community, since game species (predators) rely on this forage base for their survival. Variations in total annual catch are attributable primarily to fluctuations in the population size of the forage species. Forage species with high repro-ductive potentials frequently respond to changes in natural environmental factors (competition, food availability, cover, and water quality) with 8

- .. ~ . . . - . .

1 i

i DUQUESNE LIGiff COMPANY 1987 ANNUAL ENVIROtMENTAL REPORT large changes in population size. These fluctuations are naturally occurring and take place in the vicinity of BVPS.

Although variation in total catch has occurred, species conposition has

- remained fairly stable. Since the initiation of studies in 1970, forage fish of the family Cyprinidae have dominated the ca tche s. Emerald shiners, gizzard shad, sand shiners, and bluntnose minnows have consis-tently been among the most numerous fish, although the latter two species may have declined in recent years. Carp, channel catfish, smallmouth and spotted bass, yellow perch, and walleye have all remained conunon species.

Since 1978, sauger have become a common game species to this area.

' Differences in the 1987 electrofishing and gill-net catches, between the 4

Control and Non-Control Transects were similar to previous years (both ,

operational and pre-operational) and were probably caused by habitat preferences of individual species. This habitat preference is probably s the most influential factor that affects where the different species of fish are collected and in what relative abundance.

l Data collected from 1970 through 1987 indicate that fish in the vicinity of the power plant have not been adversely affected by BVPS operation.

ICifrHYOPLANKTON. Shiners, gizzard shad, and freshwater drum dominated f the 1987 ichthyoplankton catch from the back channel of Phillis Island .

Peak densities occurred in June and consisted mostly of early larval

. stages. No spawning was noted in April. There was a decrease in larvae density after July. No substantial differences were observed in species conposition or spawning activity over previous years.

PISH IMPINGEMENT. The results of the 1987 impingement surveys indicate ,

l that withdrawal of river water at the BVPS intake for cooling purposes l has little or no effect on the fish populations. Three hundred and '

forty-five (345) fishes were collected. which is the fourth highest 1

collected since initial operation of J/?; in 1976. Gizzard shad were the [

most numerous fish, conprising 82.6% of the total annual catch. The i

9

+- -e , ,-- -,,w-r ar nea..~,n,,,,,-,,--~w-.m.v.,,----,.w,,v,v-,,,-,,- -e m-.- -nev,e ,--m n ~~,.--nn,-.,,,-~-,----,,y, - - - -

DUQUESNE LIGHT COMPANY 1987 ANNUAL ENVIRONMENTAL REPORT total weight of all fishes collected in 1987 was 7.27 kg (16.0 lbs) . Of the 345 fishes collected, 18 (5.2%) were alive and returned via the discharge pipe to the Ohio Rive.t.

PLANKTON ENTRAINMENT. Entrainment studies were performed to investigate the impact on the plankton community by withdrawing river water for in-plant use. Entrainment-river transect surveys for ichthyoplankton were conducted to ascertain any changes in spawning activity occurring in the Ohio River adjacent to the BVPS intake. The greatest '.bundance of ichthyoplankton collected occurred during the month of July. Assuming actual entrainment rates were similar to those found in 1976 through 1979, and adjusting for the water withdrawned from Unit 2 no substantial entrainment losses should have occurred in 1987 due to the operation of BVPS. Assessment of monthly phytoplankton and zooplankton data of past years indicated that under worse-case conditions of minimum low river flow (5,000 cfs) , about 4.1% of the phytoplankton and zooplankton passing the intake would be withdrawn by the BVPS circulating water system. This is considered to be a negligible loss of phytoplankton and zooplankton relative to the river populations.

Corbicula MONITORING PROGRAM. The results of the 1987 Corbicula Monitoring Program show that no live clams were collected from the upper reservoir of Unit 1 Cooling Tower. Since the water entering this area comes directly from the condensers, it is suspected that elevated water temperatures makes this area unsuitable for the claas. Corbicula survive in the lower reservoir with an estimated population of 20 million clams (96% alive) on 29 April and 178 million clams (98% alive) on 15 December. No live Corbicula were collected in the reservoir of Unit 2 cooling tower. From the river surveys conducted in May and September 1987, Corbicula inhabit the upper Ohio drainage, providing the opportunity for clams to enter BVPS.

The results of the growth study obtained show that growth of Corbicula was more rapid in the cooling tewer than in the intake structure, especially for the small clam greup (size class A) . The higher year 10

I DUQUESNE LIGHT COMPANY 1987 ANNUAL ENVIRONMENTAL REPORT I

l round temperatures within the cooling tower system probably sustained growth rates longer than in the river. This may also be a result of increased nutrients present in the cooling tower due to the evaporation l

l of water in the cooling tower heat loss process concentrating river water 1

nutrients.

In general, for both the intake structure and cooling tower clams of all sizes increased most rapidly during the first two months of analysis from July to September 1987 and tended to level off in growth thereafter.

The only period of potential larvae release from gravid adult clams occurred from July 31, 1987 through August 28, 1987 at the intake structure. Two weeks later at the intake, larval release was over.

Therefore, the larval release period took at least four weeks but probably less than six.

There was inconclusive data of a major larval release period in the Unit 1 cooling tower. Possibly, the consistently warm temperature conditions maintained within the tower may have retarded or prevented a spawning season. Many cold-blooded organisms require a cold period to re-establish their reproductive cycles. The reproductive cycles of Corbicula at BVPS is still under investigation.

The large population of clams found in the cooling tower is evidently being supplemented by juvenile and adult clams circumventing the travelling screens in the intake structure. Gravid clams enter the tower then release their larvae which may remain in the cooling tower or are cycled back out into the river. Larvae, released from clams spawning in the river, may also enter the plant past the travelling screens and establish themselves in the cooling tower.

11 l

L. _ . . . _ ,

DUQUESNE LIGiff COMPANY 1987 ANNUAL ENVIRO!EENTAL REPORT III. ANALYSIS OF SIGNIFICANT ENVIRONMENTAL CHANGE In accordance with BVPS Unit 1 ETS, Appendix B to Operating License No.

DPR-66, significant environmental change analyses were required on benthos, phytoplankton, and zooplankton data. However, on February 26, 1980, the NRC granted DI4o a request to delete all the aquatic monitoring program, with the exception of fish impingement, from the ETS (Amendment No. 25, License No. DPR-66). In 1983, the NRC deleted the requirement for additional impingement studies. However, in the interest of provid-ing a non-disruptive data base DIco is continuing the Aquatic Monitoring Studies.

12

DUQUESNE LIGIf? COMPANY 1987 ANNUAL ENVIRONMENTAL REPORT IV. MONITORING F~N-RADIOLOGICAL EFFLUENTS A. MONITORING CHEMICAL EFFLUENTS The Environmental Technical Specifications (ETS) that were developed and included as part of the licensing agreement for the BVPS, required that certain non-radiological chemicals and the temperature of the discharges be monitored and if limits were exceeded they had to be reported to the NRC. During 1983, the NRC (Amendment No. 64) deleted these water quality requirements. The basis for this deletion is that the reporting require-ments would be administered under the NPDES permit. However, the NRC requested that if any NPDES permit requirements were exceeded, that a copy of the violation be forwarded to the Director, Office of Nuclear Reactor Regulation.

B. HERBICIDES Monitoring and reporting o.' herbicides used for weed control during 1987, is no longer required as stated in Amendment No. 64; thus, this informa-tion is not included in this report.

13

I DUQUESNE LIGifI' COMPANY 1987 ANNUAL ENVIRONMENTAL REPORT V. AQUATIC MONITORING PROGRAM A. INTRODUCTION l

I The environmental study area established to assess potential impacts consisted of three sampling transects (Figure V-A-1) . Transect 1 is located at river mile (RM) 34.5, approximately 0.3 mi (0. 5 km) upstream of BVPS and is the Control Transect. Transect 2 is located approximately 0.5 mi (0.8 km) downstream Of th9 BVPS discharge structure. Transect 2 is divided by Phillis Islandi the main channel is designated Transect 2A and the back channel Transect 2B. Transect 2B is the principal Non-Control Transect because the majority of aqueous discharges f rom BVPS Unit 1 are released to the back channel. Transect 3 is located approxi-mately 2 mi (3.2 km) downstream of BVPS.

Saapling dates for each of the program elemes ts are presented in Table V-A-1.

The following sections of this report present a summary of findings for each of the program elements.

14

' '**** { } r i a* , ;,-- ,,,

.t - '

-Z's 4 .s-\ 'l.y ,'

I- Oa i*'...":,'.'g,.

6

. M..

DLANp,.,.,,

't,%J,.Q-' g -.,. t u t. i ? 6 f r , ,,,..;

i , g p e

e $

N '"7- 1 RANSECT 3 % I,c' ' b 'pM )Q, .,

e4 O nauca e N o%,o$.4 '. ,'f E).g asis. MANSFIELD C i # PLANT O

. .. , f .

sg.c,:q. . ' *\ ...., . ,

o a $g ,

gh a

m. 3ki .

.... , m-z U

/ M t<

ss

- - - - '.,. 85 o

. . TRANSECT I TRANSECT ,,2A es .

b'-

O

, mu.

as ,4 bg I: e ~

LEGEND ,

D1 DEAVER VALLEY DISCHARGE N os I

h k D2 INDUSTRIAL DISCitARGE '

O AID'IU HAVIGATION i DEAVER l

TRANSnrssion I. rue TRANSECT 2B VALLEY (,,,,,,,,,,, .

POWER STATION FIGURE V-A-1 SAMPLING TRANSECTS IN THE VICINITY OF THE BEAVER VALLEY POWER STATION BVPS

TABLE V-A-1 AQUATIC MONITORING PROGRAM SAMPLING DATES 1987 BVPS Corbicula Ichthyoplankton Phyto- and Month Benthos Monitoring (a) Fish Impingement Day Night Zooplankton January 2, 9, 16, 23, 30 16 5

=

February 6, 13, 20, 27 13 March 6, 13, 20, 27 20 $

g te g April 29 3, 10, 17, 24 21 17 <[O g

May 13 13 19 1, 8, 15, 22, 29 19 20 15 E June 5 5, 12, 19, 26 19 12 4 July 14 3, 10, 17, 24, 31 14 15 17 g -

August 7, 14, 21, 28 8

10 14 g September 16 16, 17 15 4, 11, 18, 25 18 October 23 thru 31(D) 2, 9, 16, 23 16 November 1 thru 15(b) 10 15, 20, 27 15 December 15 4, 11, 24 18 (a) Corbicula Monitoring also includes all Impingement dates.

(b) Diving operations.

DUQUESNE LZGiff COMPANY 1987 ANNUAL ENVIRONMENTAL REPORT B. BENTH0S Objectives The objectives of the benthic surveys were to characterize the benthos of the Ohio River near BVPS and to determine the impacts, if any, of BVPS operations.

Methods Benthic surveys were performed in May and September , 1987. Benthos samples were collected at Transects 1, 2A, 2B, and 3 (Figure V-B-1) ,

using a Ponar grab sampler. Duplicate samples were taken off the south shore at Transects 1, 2A, and 3. Sampling at Transect 2B, in the back channel of Phillis Island, consisted of a single Ponar grab at the south, middle and north side of the channel.

Each grab was washed within a U.S. Standard No. 30 sieve and the remains placed in a bottle and preserved with 10% formalin. In the laboratory, macroinvertebrates were sorted from each sample, identified to the lowest 2

possible taxon and counted. Mean densities (numbers /m ) for each taxon were calculated for each of two replicates and three back channel samples. Three species diversity indices were calculated: Shannon-Weiner, evenness indices (Pielou 1969), and the number of species (taxa) .

Habitats Substrate type was an important factor in determining the composition of the benthic community. Two distinct benthic habitats exist in the Ohio River near BVPS. These habitats are the result of damming, channeliza-tion, and river traffic. Shoreline habitats were generally soft muck substrates composed of sand, silt, and detritus. An exception occurs along the north shoreline of Phillis Island at Transect 2A where clay and sand predominate. The other distinct habitat, hard substrate, is located at midriver. The hard substrate may have been initially caused by chan-nelization and scouring by river currents and turbulence from commercial boat traffic.

17

s . .. g. ,.,.,, - ,

, .;lt.s

,4 .h*.! ( M.

,,v;. .

, . . morn. o ,, ,<c ,4 t . .

A3 \,!- -

E' , '.,yj

\ -4 mu %\, ' . , ' : \ k'\*:. .' O Q i;; , ' ; ;t N c O4 nauce

\ '+I ,.,, .... O MANSFIELD O

=1.

2

.-s, . ..

,, .'. ' 156;1,i. .7

,5*

k . $,

PLANT g:d V. 't, t,y 0 , OO Z trj

V j,,n .gy y ry .s . -

co ' .. e%, .

. name n nup to s ....

s . *A O

. .E. , .

$g sy

hl r.rGtNo 4.-

fi2A * '

_I ,

e g

D1 BEAVER VALLEY DISC 7tARGg M~~'s~~

O j ,* Pa{He ] h A SAMPLING STATION 3_3 STATION NUMBER N

d D2 INDUSTRIAL DISCHARGE .*a 20 T o. h O AID TO NAVIGATION 8,

/ ggg g )

TRANSMISSION LINE '

VAI.TEY POWER ("***"""

STATION FIGURE V-B-1 BENTIIOS SAMPLING STATIONS BVPS

TABLE V-B-1 SYSTEMATIC LIST OF MACR 0 INVERTEBRATES COLLECTED I] PREOPERATIONAL AND OPERATIONAL YEAD"3 IN THE OHIO C2VER NEAR BVPS Preoperational Operational 1973 1974 1975 1976 1977 1978 1979 1980 1981 1992 1983 1984 1985 1986 1987 Porifera Spongilla fragilis X Cnidaria Hydrozoa Clavidae Cordylophora lacustris X X X X Ifydridae Craspedacusta sowerby1 X Hydra sp. X X X X X X X X W

Platyhelminthes @

TricladAda X X X X X $

Rhabdocoela X X X X g C

Nemertea X X X X X X O Nematoda X X X X X X X X X X X X X 7.

Entoprocta te Urnatella gracilis X X X X X X X X X X X X X X

] MM t*

Ectoprocta h Federicella sp. X X X X Paludicella articulata X X O Pectinatella sp. X Plumatella sp. X Annelida [5 g

Oligochaeta ~

Aeolosomatidae X X X X p Echytraeidae X X X X X X X X X X *3 Naididae Amphichaeta leydigli X Amphichaeta sp. X X Arcteonais lomondi X X X X Aulophorus sp. X X Chaetogaster diaphanus X X X X X X C. diastrophus X X X Dero digitata X X X D. nivea X X Dero sp. X X X X X X X X X X X Nais barbata X X N bretscheri X X X X X X X N. Communis X X X X X N. elinquis X X X X

= .

TABLE V-8-1 (Continued)

Preoperational Operrtional 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 19 g 1 1 N. variabille X 1 1 X X X X X X X X X X Nais sp. I X X X X Ophidonais ,se:pentina X X X X X X X X X X X X X X P_a_r anais, f rici Pararute sp. X X X X X X Peistina omborni X K X X X P. sina X Pristina sp. X Slavina appendiculata X X X X X X X Stephensoniana trivandrana I X X X Stylaria lacustris Uncinais uncinata X

' X X X e Vejdovskyella intermedia Tubtticidme y

X X X X X q Auloorilus 11mnobius X X X X X X X X X X X X X X X X X X X A. piqueti X X X X X X X X X b O

~A. pluriseta Borthrioncurum veidovskyanum X X X X X X Branchiura sowerbyl X X X X X X X X X K X X X g X X X X X X X X X X X :g Ilyodrilus templeton1 M X X X X X X X X X X X 3 X PJ Limnodrilus cervix o X X X X X X X X X t L. cervix (variant) X X X M y" X X X X X X X X

[.claparedelanus X X x x x x 5g L. horenetsteri x X X X X X x K X X X L. spiralis X X X X X X X X X X X X X O L. udekemianus X X X X X Lionodeilus sp. X Peloscolex multisetosus longidentus X X X X X X f

1 X X X X X X X X X X P. m. multisetosus Potamothrix moldaviensis X X X %

X X X X P. weldovskyi Psammoryctides curvisetosus X y X X X X d Tubtfex tubtfex X X UnidentifLed immature forms X X X X X X X X X X X X X X X with hair chaetae X X X X X X X X X X X X X without hair chaetae K X Lumbriculidae Hirudinea clossiphoniidae Helobdella elongata K K Helobdella stagnalis K Helobdella sp. X Erpobdellidae Frpobdella sp. I Mooreobdella microstoma X X

TA8LE V-D-1 *

(Cont inued)

Prsopseational Operrttonal 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 Arthropoda Acarina X X- X X X Ostracoda X X X Amphipoda Talitridae Hyallela azteca X X Cammaridme Crangonyx pseudogracilis X Crangonyx sp. X Gamsarus fasciatus X X X Gasmarus sp. X X X X X X X X X X X X X Decapoda X Co11embo11a X Ephemeroptera P Heptageniidae X X $

-J Stenacron sp. X X Stenonema sp. X Ephemeridae g Hexagenta sp. X X Caenidae [gg Caents sp. X X g N Tricorythodes sp. X

" t*

Ephemeridae Ephemera sp. X $

Megloptera g Stalis sp. X O

Odonata Gomphidae Dromoqosphus spoliatus X h Dromogowhos sp. X Comphus sp. X X X X X h Trichoptera g Psychomyidae Polycentropus sp. X Bforopsychidae X Cheumatopsyche sp. X X R/dropsyche sp. X R/d roptilidae .

Hydroptila sp. X Oxyethira sp. X Leptoceridae O Metis sp. X X X X X X Coleoptera X Hydrophilidae X Elmidae Ancytonyx varlegatus X Dubiraphia sp. X X X Helichus sp. X

TABLX V-9-1 (Continued)

Prooperational Op*ratlona1 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 Stenelmis sp. X X X Psephenidae Diptera X X X X X X X X X Unidentified Diptera Psychodidae X Pericona sp. X Psychoda sp. X Telmatoscopus sp. X Unidentified Psychodidae pupae X Chaoboridae X X X X X X X Chaoborus sp.

Sim211dae Simillum sp. X y es Chironomidae "

X X Chironominae X X X X X Chironominae pupa X X X X X X X X X X X X X -

Chironomus sp.

X X X Cladopelma sp.

Cryptochironomus sp. X X X X X X X X X X X X X X X h Dicrotendipes nervosus X X X y Dicrotendipes sp. X X X X X X [

Glyptotendipes sp.

X X O Harnischia sp.

Micropsectra sp.

X X X X

X X X X X X X g$

Microtendipes sp. X g Parachironomus sp. X X g Polypodilum (s.s.) convictum type X g X l>

P. (s.s.) simulans type Polypedilun sp. X X X X X X X X X y%

X X X X X X X t4 Rheotanytarsus sp. X Stenochironomus sp. X X X X 8 Stictochironomus sp. X y X X X X X X Tanytarsus sp.

Kenochironomus sp. X Tanypodinae Tanypodinae pupae X X X X X X Ablabesmyia sp.

X X X X X X X X X X X Coelotanypus scapularis X

Djalmabatista pulcher X X X Procladius (Procladius) X X X X X X Procladius sp. X X X X X X X X X Thienemannisyla, group X X X X X Zavre11myia sp. X Orthocladiinae X Orthocladiinae pupae X Cricotopus bicinctus X l X C. (s.s.) trifascia Cricotopus (Isociadius) sylvestris Group X C. (Isocladius) sp. X

TABLX V-8-1 (Continued)

Prooperational Operational 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 IL985 H 86 1987 Cricotopus (s.s.) op. X X X X X X Euitieffortella sp. X X X Hydrobaenus sp. I Limnophyes sp. X Nannocladius (s.s.) distinctus X X X X X Mannocladius sp. X X Orthocladius sp. X X X X X X X X X Parametriocnemus sp. X X Paraphaenocladius sp. X X Psectrocladius sp. X X Pseudorthocladius sp. X Pseudoemittia sp. X X Smittia sp. X X X X X $

Diamesinae Diamesa sp. X U

X Potthastia sp.

Ceratopogonidae X X X X X X X X X X h Dolichopodidae X X Q (A

Empididae X X X X X z

g Wiedemarnia sp. X y Ephydtidae 1 X X

ws Neidw Rhagionidae X gO Tipulidae X k Stratiomyiidae X X n Syrphidae X Q Lepidoptera X X X Q milusca Castropoda y M

Ancy11dae Ferrissia sp. X X X X h Planorbidae X %

valvatidae valvata perdepressa Pelecypoda X Corbiculidae Corbicula man 11ensis* X X X X X X X X X X X X Sphaeridae X X X Pisidium sp. X X X Sphaerium sp. X X X X X X X X X X X Unidentified immature Sphaer11dae X X X X Unionidae Anadonta grandis X Ell 1ptto sp. X Unidentified inunature Unionidae X X X X X

Recent literature relegated all North American Corbicula to be Corbicula fluminea.

d DUQUESNE LIGiff COMPANY 1987 ANNUAL ENVIRONMENTAL REPORT Forty-one macroinvertebrate taxa were identified during the 1987 moni-toring program (Table V-B-1). Species composition during 1987 was similar to that observed during previous preoperational (1973 through 1975) and operational (1976 through 1986) years. The macroinvertebrate assemblage during 1987 was composed primarily of burrowing organisms typical of soft unconsolidated substrates. Oligochae tes (worms) and chironomid (midge) larvae were abundant (Tables V-B-2, V-B-3, and V-B-4). Common genera of oligochaetes were Limnodrilus, Nais, and Paranais.

Comacn genera of chironomids were Procladiu s, Cryptochironomus, Polypedilum, Coelotanypus , and Chironomus. The Asiatic clam (Corbicula),

which was collected from 1974 through 1978, has been collected in the <

1981 through 1987 surveys. None were collected during 1979 or 1980 surveys.

No ecologically important additions of species were encountered during 1987 nor were any threatened or endangered species collected.

4 Community Structure and Spatial Distribution Oligochaetes accounted for the highest percentage of the macroinverte-i brates at all sampling stations in both May and September (Figure V-B-2) .

, Density and species composition variations observed within the BVPS study area were due primarily to habitat differences and the tendency of cer-tain types of macroinvertebrates (e.g., oligochaetes) to cluster. Over-all, abundance and species conposition throughout the study area were similar.

l In general, the density of macroinvertebrates during 1987 was lowest at Transect 2A and higher' at Transects 1, 2B, and 3 where substrates near the shore were composed of soft mud or various combinations of sand and l

l silt. The lower abundance at Transect 2A was probably related to sub-strate conditions (clay and sand) along the north shore of Phillis ,

r i.

Island.

i l

i 24

TABLE V-[i>-2 2

MEAN NLMBER OF MACROINVERTEBRATES (Number /m ) AND PERCENT COMPOSITION OF OLIGOCHAETA, CHIRONOMIDAE, MOLLUSCA AND OTHER ORGANISMS, 1987 BVPS STATION 1 2A 2B 3 t/m 2 g gf ,2 g gf ,2 g ,7 ,2 g May 14 5 5

Oligochaeta 1,941 98 40 44 2,267 86 944 88 g Chironomidae 10 1 20 22 329 12 99 9 $

Mollusca 20 1 20 22 20 1 30 3 $h Others 0 0 10 11 33 1 0 0 g U Totals 1,971 100 90 99 2,649 100 1,073 100 September 16 Oligochaeta 2,772 95 109 38 2,089 75 1,784 69 Chironomidae 98 3 60 21 619 22 699 27 N Mollusca 30 1 118 41 59 2 98 4 Others 10 'l 0 0 13 <1 10 <1 8 Totals 2,910 99 287 100 2,780 99 2,591 100

DUQUESNE LIGHT COMPANY 1987 ANNUAL ENVIRO! MENTAL REPORT TABLE V-B-3 2

BENTHIC MACROINVERTEBRATE DENSITIES (Number /m ), MEAN OF TRIPLICATE FOR BACK CHANNEL AND DUPLICATE SAMPLES COLLECTED IN THE MAIN CHANNEL OHIO RIVER, MAY 13, 1987 BVPS STATION Taxa 1 2A 2B 3 Entoprocta Urnatella gracilis + +

Ann 211da Oligochaeta eggs + + +

Arcteonais lomondi 20 Nois communis 10 13 Nais elinguis 10 20 Nzis sp. ?O 30 52 10 Ophidonais serpentina 10 7 Prranais frici 660 446 216 Pristina sigma 88 10 Vijdovskyella intermedia 53 Aulodrilus pluriseta 7 Brrnchiura sewerbyi 13 Lirnodrilus cervix 7 Limnodrilus claparedianus 7 Limnodrilus hoffmeisteri 394 230 108 Limnodrilus udekemianus 30 13 10 Potamothrix vejdovskyi 30 Immatures w/o capilliform chaeta 601 10 1,261 472 Immatures w/ capilliform chaeta 98 138 88 Arthropoda Amphipoda Grmmarus sp. 10 33 Diptora Chironomidae adult 7 Chironominae pupa 20 Chironomus sp. 210 Polypedilum sp. 10 26 Tanypodinae pupa 10 Coelotanypus scapularis 10 10 Procladius sp. 59 59 Caratopogonidae 7 Stratiomyidae 10 Unidentified Diptera 20 Mollusca Corbicula fluminea 10 20 30 Sphaerium sp. 20 10 Total 1,971 90 2,649 1,073

+ Indicates organisms present.

26

DUQUESNE LIGiff COMPANY 1987 ANNUAL ENVIRO! MENTAL REPORT TABLE V-B-4 2

BENTHIC MACR 0 INVERTEBRATE DENSITIES (Number /m ), MEAN OF TRIPLICATE FOR BACK CHANNEL AND DUPLICATE SAMPLES COLLECTED IN THE MAIN CHANNEL OHIO RIVER, SEPTEMBER 16, 1987 BVPS '

STATION' Taxa 1 2A 2B 3 Nematoda 10 13 10 Ectoprocta '

Urnatell,a gracilis + + +

Ann 211da Oligochaeta eggs + + +

Nais communis 7 Paranais frici 10 Pristina osborni 20 Pristina sp. 10 Aulodrilus piqueti 10 20 Branchiura sowerbyi 26 Limnodrilus cervix 10 Limnodrilus elaparedianus 10 i Limnodrilus hoffmeister! 552 20 223 148 Limnodrilus udekemianus 50 10 Paloscolex m.,multisetosus 7 Potamothrix vejdovskyi 10 Immature w/o capilliform chaetae 2,120 89 1,635 1,330 Immature w/ capilliform chaetae 20 171 246 Ar thropoda Diptera Chironomidae pupae 10 7 Chironomus sp. 33 Cryptochironomus sp. 88 33 59 Dicrotendipes sp. 40 Harnischia sp. 13 20 Polypedilum sp. 276 98 Rheotanytarsus sp. 20 [

Coelotanypus scapularis 10 184 236 Djalmabatista pulcher 10 Procladius sp. 53 276 Cricotopus sp. 10 Mollusca l

Corbicula fluminea 30 118 59 98 Total 2,910 287 2,780 2,591

+ Indicates organisms present. ,

l l

l 27 l: _ _ _ _

l s"B* In S5 C = n8* g

c ln S

R E i H

T O 7 L

L

! ! '//l////////////// 8 A

d i

sh///l////////////// 6 8

5 M

[ wh///l/'///////////// 8 4

" '////l////////////// 8 Y T

, S I 7//., ' , './/////'/////

sl -

3 8

Y R

A E

N U

M M

O S j' //l//,////,//////// 2 8

L CGR NA A SI E ORY gm/,///,////////////// 1 8

N O

I I

I U TDL E T N A A

' 0 A ESN D

I M

L //l/////////'///// 8 R E

P HPO VI EI T I

O 9 O 2 I I A TRR O

l f

W [///l////////////// 7 B AE FEP IR 8 V ONO H

C w[///l////////////// 7 E R

U NR OE

IVA J

N

\

g!" M' ,///

h

/ /////////'/////

7 7

G I

F TI IRL S A

\s O0N

}

gir///l////////////// 6 7

P1 O M1 I 1

O0T C A i ER PI E I

S R WTPO I

A CNE g$ ///l////V/////////

5 7 E Y

RIR E P P

wk///l,////////////// 4 7 L A

N N

A E

O M T

E A g$///l//,//////////// 3 7

]2 7

I T

A A -

R O

H C g%///l//////////////

i 0

7

- E P

O G -

U i E O R

~ - - - - ~ - - ~ - P l

0 0 o 0 o 0

/ * ' 7 6 < 2 '

7

[

~ a'in"E

~*

DUQUESNE LIGiff COMPlc.k 1987 ANNUAL ENVIRONMEffrAL 40N Comparison of Control and Non-Control Stations No adverse impact to the benthic community was observed during 1987.

This conclusion is based on a comparison of data collected a:. T;ansect 1 (Control) and 2B (Non-Control) and on analyses of species composition and densities.

Data indicates that oligochaetes wer:e usually predominant throughout the study area (Figure V-B-2) . Most abandant taxa at Transects 1 and 2B in both May and September were immature tubificids without capilliform chaetae (Tables V-B-3 and V-B-4) . In May, the oligochaetes which were common or abundant at both sta tions were Limnodrilus hoffmeisteri and Paranais frici4 In September, the oligochaete Limnodrilus hoffmeisteri, the midge Coelotanypus scapularis, and the clam Corbicula fluminia were the common organisms collected at both stations.

In May and September 1987, a greater diversity of organisms were col-lected at Non-Control station 2B than at Control station 1 (Table V-B-5) .

This has occurred several times during past surveys. The mean number of taxa and Shannon-Weiner indices for the back channel were within the range of values observed for other stations in the study area. Differ-ences observed between Transect 1 (Control) and 2B (Non-Control) and between other stations could be related to differences in habitat. None of the differences were attributed to BVPS operation.

Comparison of Preoperational and Operational Data Co gosition, percent occurrence and overall abundance of macroinverte-brates has changed little from preoperational years through the current study year. 011gcchaetes have been the predominant macroinvertebrate in the community each year and they comprised approximately 83% of the individuals collected in 1987 (Figure V-B- 2) . A similar oligochaete assemblage has been reported each year. Chironomids and nollusks have cogosed most of the remaining fractions of the comrnunity each year. The potential nuisance clam, Corbicula, had increased in abundance from 1974 through 1976, but declined in number during 1977. Since 1981, Corbicula have been collected in the benthic surveys including 1987.

29

DUQUESNE LIfiff COMPANY 1987 ANNUAL ENVIROl4GNTAL REPORT TABLE V-B-5 MEAN DIVERSITY VALUES FOR BENTHIC MACROINVERTESRATES COLLECTED IN THE OHIO RIVER, 1987

BVPS STATION 1 2A 2B 3 DATE: May 13 No. of Taxa 10 4 12 9 Shannon-Weiner Index 2.23 1.76 2.30 2.34 Evenness 0.69 0.99 0.73 0.77 DATE: September 16 No. of Taxa 8 4 10 13 Shannon-Weiner Index 1.25 1.63 1.86 2.43 Evenness 0.44 0.86 0.67 0.66 30

DUQUESNE LIGiff COMPANY 1987 ANNUAL ENVIROttuDfrAL REPORT TABLE V-B-6 i

2 BENTHIC MACROINVERTEBRATE DENSITIES (Number /m ) FOR STATION 1 (CONTROL) AND STATION 2B (NON-CONTROL) DURING i PREOPERATIONAL AND OPERATIONAL YEARS BVPS i Preoperational Years 1973 1974 1975 1 2B 1 2B 1 2B January February 205 0 703 311 March April May 248 508 1,116 2,197 June 5 40 507 686 July 653 119 421 410 August 99 244 143 541 1,017 1,124 September 175 92 ,

October 256 239 November 149 292 318 263 75 617 December Mean 231 206 483 643 546 871 31

DUQUESNE LIGHT COMPANY 1987 ANNUAL ENVIROlMENTAL REPORT TABLE V-3-6 (Continued)

Operational Years 1976 1977 1978 1979 1980 1981 1 2s 1 2s 1 2s 1 28 1 28 1 2s Jra uary F3ruary 358 200 312 1,100 1,499 2,545 1,029 1,296 March 425 457 April May 927 3,660 674 448 351 126 1,004 840 1.041 747 209 456 Jrne J 1y Augrat 851 745 591 3,474 601 1,896 1,185 588 september 1,523 449 2,185 912 5

octooer noveabst 388 1,295 108 931 386 1,543 812 806 December Mein 631 1,485 421 1,588 709 1,528 857 673 1,198 830 1,197 684 l

32

DUQUESNE LIGiff COMPANY 1987 ANNUAL ENVIRot4GDffAL REPORT TABLE V-8-6 (Continued)

Operational Years 1962 1983 1984 1985 1986 1987 1 2B 1 2B 1 2B 28 1

1 28 1 J

Janu:ry FJbruary March April May 3,453 3,026 3,590 1,314 2,741 621 2,256 867 601 969 1,971 2.649 June July August September 2,956 3,364 4,172 4,213 1,341 828 1,024 913 049 943 2.910 2.700 October November December Mean 3,223 3,195 3,881 2,764 2,041 725 3,640 890 725 956 2,440 2.714 33

l l

l DUQUESNE LIGift COMPANY 1987 ANNUAL ENVIRONMENTAL RSPORT Total macroinvertebrate densities for Transect 1 (Control) and 2B (Non-Control) for each year since 1973 are presented in Table V-B-6. Mean densities of macroinvertebrates gradually increased from 1973 through 1976 (BVPS Unit 1 start-up) to 1983. In 1987, densities were greater than those of recent years. These densities were similar to these observed in 1982 and 1983 and they are well within the range of pre-operational and operationel year data. Mean densities have frequently been higher in the back channel of Phillis Island (Non-Control 2B) when compared to densi-ties at Transect 1 (Control). In years such as 1986 (also 1984, 1983, 1981, 1980, 1979) when mean densities were lower at Transect 2B than at Transect 1 the dif ferences were negligible. These differences could be related to substrate variability and randomness of sample grabs. Higher total densities of macroinvertebrates in the back channel (Transect 2B) when compared to Transect I was probably due to the morphology of the river. Mud, silt, and slow current were predominant at Transect 2B creating conditions more favorable for burrowing macroinvertebrates in comparison to Transect 1, which has little protection from river currents and turbulence caused by commercial boat traffic.

Summary and Conclusions Substrate was probably the mst impor t. ant factor controlling the dis-trib* ion *4 abundance of the benthic macroinvertebrates in the Ohio River ne % ?S. Soft muck-type substrates along the shoreline were conducive ts teorm and midge proliferation, while limiting macroinverte-brates which require a mre stable bottom. At the shoreline stations, Oligochae ta aceounted for 83% of the macrobenthos collected, whereas Chironomidae and Mollusca each accounted for about 13% and 2% respec-tively.

Community structure has changed little since preoperational years and there was no evidence that BVPS operations were affecting the benthic community of the Ohio River.

34

I i

DUQUESNE LIGiff COMPANY l 1987 ANNUAL ENVIRONMENTAL REPORT C. PHY7OPLANKTON Objectives Plankton sa@ ling was conducted to determine the condition of the phy-toplankton community of the Ohio River in the vicinity of the BVPS and to

assess possible environmental impact to the phytoplankton resulting from the operation of BVPS.

Me thods One entrainment sample was collected monthly. Each sample was a one-

gallon sample taken from below the skimmer wall from one operating intake bay. This one-gallon samle was preserved with Lugol's solution and was used for the analyses of both phytoplankton and zooplankton.

In the laboratory, a known aliquot of well-mixed samle was concentrated by settling. A measured aliquot of the concentrate was placed in an inverted microscope chamber and examined at 400X magnification. A mini-mum of 200 cells were identified and counted in each sagle. For each collection date, volume of the final concentrate was adjusted depending on cell density. A Hyrax diatom slide was also prepared monthly from each sag le. This slide was examined at 1000X magnification in order to make positive indentification of the diatoms.

Densities (cells /ml), Shannon-Weiner and evenness diversity indices (Pielou 1969), and richness index (Dahlberg and Odum 1970) were calcu-lated for each monthly sample.

Seasonal Distribution Total cell densities of phytoplankton from stations on the Ohio River and in the intake samles have been similar during the past years (Annual Environmental Reports 1176-1986). Species cog osition has also been similar in entrainment samples and those from the Ohio River (DLCo 1980) .

Therefore, sa@les collected from the intake bays should provide an ade-quate characterization of the phytoplankton community in the Ohio River.

35

DUQUESNE LIGHT COMPANY 1987 ANNUAL ENVIRONMENTAL REPORT During 1987, the January through April samples had phytoplankton densities of 2,222 to 5,695 cells /ml (Table V-C-1 and Figure V-C-1).

Total mean densities increased in May. Densities were high in July, August, and September when the annual maximum of 29,799 cells /ml was observed. Densities decreased in October, November, and December (Table V-C-1) to 2,731 cells /ml (Figure V-C-1) .

Diatoms (Chrysophta), green algae (Chlorophyta) and blue-green algae (Cyanophyta) were generally the most abundant groups of phytoplankton during 1987 (Table V-C-1 and Figure V-C-2) . The relative abundance for the group microflagellates was highest in February, when it composed 63%

of the total numbers observed. Relative densities of blue-green algae (Cyanophyta) were highest during August (324) (Table V-C-1) .

Diversity indices for the phytoplankton during 1987 are presented in Table V-C-2. Shannon-Weiner indices ranged f rom 1.89 to 3.76, evenness values from 0.37 to 0.69, and richness values from 3.11 to 5.57. High diversity values occurred in 11 of the 12 months. The lowest value for Shannon-Weiner Index occurred in April; however, the lowest number of species occurred in March when microflagellates and small centric diatoms (Chrysophyta) were predominant. Highest number of taxa (50) occurred in July.

Phytoplankton communities were generally dominated by different taxa each season. The most abundant taxa during winter (January through March) were microflagellates, Chlorophyta I (unidentifiable cells), and small centr ic-dia toms (Table V-C-3) . In April and May, small centric diatoms (Chrysophy ta) were most abundant. Small centric dia toms , which were present in all phytoplankton samples, were est abundant in September.

They included several small (4 to 12, pm dia.) species. Positive species identification was not possible during quantitative analysis at 400X magnification. Burn munt analysis at 1000X magnification revealed the group "small centries" included pr imarily Cyclotella atomus, C.

pseudostelligera, C_. meneghiniana, Stephanodiscus hantzschii, and S_.

astraea. Microcystis incerta (Cyanophy ta) and Chlorophyta I were the most abundant species in July and August respectively. Small centrics 36

. . . = .

TABLE V-C-1 MONTHLY PHTIOPLANK"ION GROUP DENSITIES (Number /ml) AND PERCENT COMPOSITION FROM ENTRAI! MENT SAMPLES, 1987 BVPS Jan Feb Mar Apr May Jun Group 9/mi 4 8/mi 4 $/ml 4 t/ml 4 f/mi t 9/mi n Chlorophyta 568 23 273 12 599 11 786 14 3,735 27 7,950 57 0 Chrysophyta 739 30 431 19 2,837 50 1,303 23 6,075 44 3,842 28 $

Cyanophyta 417 17 77 3 0 0 4 <1 2,185 16 0 0 Cryptophyta 50 2 48 2 8 <1 53 1 474 3 295 2 Microflagellates 729 29 1,392 63 2,251 40 3,403 61 1,390 10 1,768 13 Other Groups 0 0 1 <1 0 0 0 0 9 <1 27 <1 z D Y*

Total 2,503 101 2,222 99 5,695 101 5,549 99 13,868 100 13,882 100 3C Jul Aug Sep Oct Nov Dec O Group g/mi 4 8/ml 4 g/ml 4 g/ml 4 8/ml t 3/ml 4 g

Chlorophyta 5,989 22 6,730 28 2,330 8 903 12 704 9 152 6 N Chrysophyta 8,810 32 6,430 27 20,526 69 2,525 34 4,888 63 869 32 3 Cyanophyta 8,188 30 7,593 32 1,900 6 241 3 0 0 0 0 5 Cryptophyta 292 1 311 1 132 <1 193 3 53 1 71 3 Microflagellates 3,975 15 2,782 12 4,902 16 3,542 48 2,077 27 1,635 60 Other Groups 36 <1 27 <1 9 <1 4 <1 4 <1 4

<l Total 27,290 100 23,878 100 29,799 99 7,408 100 7,726 100 2,731 101

l 30 3 28 - 0 1987

+ AVERAGE 1976-1986 0 JAN-JUL 1974, AUG-OCT 1974 & 1975, 26 -

NOV-DEC 1975 24 -

22 -

20 -

(Y

'O n 18 -

2 e

-j @ 16 - S 58 No 14 - '

E8 go 5 Eb dv 12 - g o En 10 - 3 5

8-6- g3 \ $

4-O

+

NEl E

O i 7 i , , , , , , i i J F M A M J J A S O fl D MONTH FIGURE V-C-1 MONTIILY PIITIDPLANK'IDN DENSITIES IN TIIE 01110 RIVER DURING PREOPERATIONAL (1974-1975) AND OL'ERATIONAL (1976-1987) YEARS BVPS

l 1

21

~

O CliLOROPIIYTA 19 - + CIIRYSOPliYTA gg _ O CYANOPIIYTA A CRYPTOPilYTA & MICROFLAGELLATES 17 --

16 -

15 -

14 -

b g_ n 13 -

]$ 12 - 0 E 11 -

5$

No 10 _ $E a]

$f 9- Eu g d" o

g_ ^

WE 2e 7- "E 6- -

3-A -

O i i T T i r i i i 1 1 J F M A M J J A S O f4 D MOfJTH FIGURE V-C-2 PIIYTOPLANK' ION GROUP DENSITIES FOR ENTRAINMf9fT SANPLFE, 1987 BVPS

TABLE V-C-2 PHYTOPLANKTON DIVERSITY INDICES BY MONTH FOR ENTRAINMENT SAMPLES, 1987 BVPS Date Jan Feb Mar Apr May Jun No. of Species 42 44 29 33 33 36 Shannon-Weiner Index 2.99 2.28 2.51 1.89 3.38 3.56 g Evenness 0.55 0.41

-a 0.52 0.37 0.67 0.69 Richness 5.24 5.58 3.24 3.71 3.36 3.67 Jul Aug Sep Oct Nov Dec X a

No. of Species 50 39 33 36 35 31 37 g Shannon-Weiner Index 3.76 3.44 2.12 2.52 2.54 2.41 2.78 E

Evenness 0.67 0.65 O.42 0.48 0.50 0.48 0.53 ah Richness 4.80 3.77 3.11 3.93. 3.80 3.79 4.00 h i

I

TA8LE V-C-3 DSHSITIES (Number /al) OF MOST ABUtehsrr PNr!OPIJWWC10N TAXA (F1f teen thet Abundant On Any Dete)

COLLECT 8D F50t ENT5tAII9 TENT SAMPLES JANUARY TIS 40 UGH DECEMBER 1987 BVPS Tama Jan Feb Mar g My Jun Jul g M M M M CYANOPHYTA Aphantrosenon flos-aquae 446 173 100 Merissopedia tenuissima 1,165 983 146 Microcystis incerta 5,565 6,360 1,590 y Osc111storla tenera 530 cm Schirothr E calcicola 18 11 2 291 82 64 Coccold cyanophyta 398 66 2,185 232 CHIDROPHYTA CQM Actinastrum hant schil 73 54 %

p Ankistrodessus convolutus 44 10 14 7 892 642 273 400 127 36 162 12

- Antistrodesmos falcatus 19 15 9 27 64 100 127 27 18 40 7 [

Chlamrdomonas opp. 15 2 22 9 391 46 109 9 36 40 18 2 O Chlorophyta 1 398 177 563 575 463 1,768 2,385 3,312 1,458 430 221 66 %

coelastrum microporum 146 218 g Crucigenia crucifera 328 36 g Dietrosphaerium pulchelium 4 146 36 510 36 18 g ElekstotheAx gelatinosa 354 Lagerheimia quadriseta 22 y nieractinium pusillum 45 18 M Pediastrum duplex 291 8 Pediastrum tetras 109 73 g Scenedesmos bicellularis 44 44 530 265 1,458 530- 80 44 Scenedeamus dimorphus 155 Scenedessus opolensis 4 9 410 355 109 528 155 90 81 Scenedesmos quadricauda 228 246 118 200 264 36 54 12 selenaatrum minotum 22 177 66 Selenastrum westil 177 265 3,138 265 662 33 Tetrastrum hetercanthum 146 36 73

TABLE V-C-3 (Continued)

Tas a Jan Feb Mar g g Jun Jul A3 & M M M CERYSOPNTTA Achnanthes minutissima 99 7 33 66 Asterionella formosa 68 31 112 16 155 36 4 22 104 cymbella venteicosa 2 1 9 12 4 30 Diatoma tenue 13 14 5 2 Diatoma vulgare '

1 50 9 9 18 16 Dinobryon sertularia 4 12 4 2 127 46 Fraqilarla crotonensia 655 55 81 Fragilaria vaucherine 1 68 Gomphonema olivaceum Gomphonema parvulum 1 4 194 9 12 Y 3 4 14 Melostra ambigua 3 18 9 27 9 112 198 2

Melosira distans 9 6 9 109 Melostra granulata 11 16 54 21 127 36 1,219 109 346 1,793 410 792 234 72 162 76 18 34 O 8

Melostra varians 2 2 54 100 127 55 9 32 87 h Navicula cryptocephala Navicula viridata 3

6 3

11 162 40 39 46 9

27 18 18 18 18 27 9 9 32 g 18 44 pg

- Nitzschia agnita 3 3 12 9 9 9 73 Nitzschia frustulum

,p 18 12 18 MM Nitzschia pelea Skeletonema potamos 6

44 11 58 9 18 18 46 3,445 55 398 36 928 4 27 442 23 8O

- k Synedra tenera 8 11 4 300 73 4 14 Tabellaria fenestrata n

9 68 Small centrics 553 265 1,854 1,061 5,031 2,343 3,710 3,975 18,152 1,986 3,669 376 4Q gIU CRYPTOPHYTA g

Cryptomonas erosa 6 4 4 9 209 118 27 46 27 9 5 b Rhodomonas minuta 44 44 4 44 265 177 265 265 132 166 44 ' 66 %

MICROFIAGELIATES 729 1,392 2,251 3,403 1,390 1,768 3,975 2,782 4,902 3,542 2,077 1,635 Total Phytoplankton 2,503 2,222 5,695 5.549 13,868 13,882 27,290 23,878 29,799 7,408 7,726 2,731 Total of Most Abundant Tasa 2,469 2,104 5,652 5,518 13.541 13,593 26,356 23,498 29,519 7,300 7,679 2,595 Percent Couposition of het Abundant Phytoplankton 99 98 99 99 98 98 97 98 99 98 99 99

DUQUESNE LIGHT COMPANY 1987 ANNUAL ENVIRO!ME}frAL REPORT and microflagellates were the nost abundant algae collected in November and December.

Comparison of Control and Non-Control Transects Plankton sagles were not collected at any river stations after April 1, 1980, due to a reduction in the scope of the aquatic sampling program, therefore, comparison of data was not possible in 1987.

Comparison of Preoperational and Operational Data The seasonal succession of phytoplankton varied from year to year, but, in general, the phytoplankton taxa has remained consistent.

Phytoplankton communities in running waters respond quickly to changes in water temperature, turbidity, nutrients, velocity, and turbulence (Hynes 1970). The phytoplankton from the Ohio River near BVPS generally exhib-ited a bimodal pattern of annual abundance. During the preoperational year 1974, total densities peaked in August and October, while in opera-tional years of 1976 through 1979, mean peak densities occurred in June and September (DLCo 1980) . Total phytoplankton densities also displayed a bimodal pattern in 1987, when peaks occurred in July and September (Figure V-C-1).

In general, the phytoplankton community in 1987 was similar to those of preoperational and operational years. No major change in species co@o-sition or community structure was observed during 1987. The small dif-ferences in the phytoplankton community between 1987 and the previous years are due to natural fluctuations and were not a result of BVPS operations.

Shannon-Weiner, evenness, and richness diversity values were unusually low in April when the phytoplankton was strongly dominated by small cen-tric diatoms. Centric diatoms frequently develop high densities in large rivers during the spring. Yearly mean Shannon-Weiner diversity indices from 1973 through 1987 were similar (except during 1973 when the value was much lower) ranging from a low of 1.50 in 1986 to a maximum of 4.48 in 1986 (Table V-C-4) . Evenness values were also similar, except during 1973, 1974 and April 1986 when values were lower. F:om 1975 through 1987, evenness ranged from 0.29 to 0.90. The maximum evenness diversity 43

TABLE V-C-4 PHr!VPLANK70N G'IVERSITY Il8) ICES (MEAN OF ALL SAMPLES 1973 TO 1987)

NDf CUMBERLAND POOL OF THE OHIO RIVER BVPS Jan Feb Mar Apr May _ .7un Jul Aug .Sep Oct Nov Dec X 1973 Nuaber of Spe a 7 2 13 24 27 28 30 24 17 16 19 Shannon Index 1.55 0.54 No 0.63 1.64 2.28 3.55 3.72 No 3.37 3.25 3.27 2.38 Evenness 0.33 0.15 Sample 0.11 0.25 0.35 0.55 0.52 Sample 0.50 0.54 0.53 0.38 Richness 1.24 0.29 1.50 2.63 3.17 3.61 3.46 3.24 2.89 2.80 2.48 1974 Number of Species 12 8 17 22 44 46 47 60 34 47 34 Shannon Indes 2.96 2.23 3.18 3.50 4.89 4.40 4.03 4.25 3.85 5.02 No Sample 3.83 Evenness 0.55 0.46 0.57 E 58 0.62 0.62 0.56 0.55 0.54 0.58 0.56 F*

Richness 1.82 3.05 2.55 3.'e 4 5.56 5.45 5.46 6.49 4.77 5.44 4.43 $

w 1975 g

Number of Species Shannon Indes No Sample 52 4.53 34 4.22 43 4.37 32 4.22 40 40 g '

4.48 4.36 Evenness 0.80 0.83 0.81 0.87 0.85 Rit eness 3.96 3.92 0.83 [

5.57 4.98 6.19 4.91 g d 1976 t*

Number of Species 35 31 31 38 47 49 46 43 38 33 35 38 39 E Shannon Index 3.98 4.36 3.90 4.25 4.14 4.27 4.28 4.30 3.93 4.16 4.24 4.45 4.19 g%

Evenness 0.80 0.85 0.78 0.81 0.75 0.76 0.78 0.80 0.75 0.83 0.83 0.85 0.80 Richness 5.15 5.89 4.92 4.70 4.68 4.79 4.72 4.34 3.85 4.17 4.95 5.79 4.83 0 1977 Number of Species 20 28 31 24 36 30 44 39 37 32 h '

33 27 32 Shannon Indes 1.96 3.31 3.00 2.78 Evenness 0.44 0.70 0.61 0.60 4.16 3.52 4.36 4.26 4.29 3.92 4.12 4.00 3.64 N 0.80 0.72 Richness 3.14 4.57 4.44 2.95 3.53 2.77 0.80 4.63 0.81 4.26 0.82 3.87 0.78 3.98 0.82 4.18 0.83 3.72 0.73 3.84 8

W i

H 1978 Number of Species 37 29 32 42 28 42 36 37 35 37 34 32 35 Shannon Indem 4.08 3.68 3.77 4.67 3.30 4.16 3.80 3.95 4.17 3.81 3.99 4.44 3.99 Evenness 0.75 0.76 0.76 0.87 0.69 0.78 0.77 0.80 0.76 0.77 0.76 0.90 0.78 RichnessM 1979 F suber of Species 18 16 19 36 34 27 34 24 29 25 28 38 27 Shannon Inden 3.49 3.36 3.79 3.22 3.78 3.84 4.10 3.88 4.12 4.07 3.68 4.32 3.00 Evenness 0.84 0.82 0.88 0.62 0.74 0.81 0.80 0.84 0.84 0.88 0.77 0.83 0.81 Richness 2.97 2.64 3.36 4.69 4.08 2.98 3.46 2.72 3.26 3.52 3.57 5.19 3.54 1980 (c)

Number of Species 28 18 24 25 21 le 30 16 32 24 33 37 24 Shannon Inden 3.88 2.64 3.78 3.82 3.28 3.26 3.61 3.45 4.10 3.54 3.73 4.56 3.57 ,

Evenness 0.81 0.64 0.83 0.82 0.75 0.78 0.74 0.86 0.82 0.77 0.74 0.87 0.78 i Richness 4.07 2.65 3.49 4.02 2.50 2.38 2.90 1.94 3.33 2.59 4.01 5.40 3.15 I

)

TAB 1.E V-C-4 (Continued)

Jan Feb Mar A r_ May Jun Jul Aug Sep Oct Nov Dec k Itel number of Species 22 35 37 39 34 33 33 51 35 27 40 32 35 Shannon Indes 3.92 4.39 4.39 2.29 3.66 4.56 4.13 4.59 4.07 3.90 4.00 4.32 3.95 Evenness 0.88 0.85 0.84 0.43 0.72 0.90 0.82 0.81 0.79 0.82 0.75 0.86 0.79 cichness 3.91 5.84 6.10 4.58 3.69 4.61 3.73 5.76 3.85 3.56 5.00 4.55 4.60 1982 Number of Species 51 41 46 22 55 45 66 54 53 35 50 49 47 Shannon Inden 4.68 4.80 4.96 1.88 4.79 4.33 4.72 4.54 4.22 3.97 4.09 4.66 4.30 Evenness 0.82 0.90 0.90 0.42 0.83 0.79 0.78 0.79 0.74 0.77 0.72 0.83 0.77 Cichness 7.17 6.43 6.88 2.36 6.15 4.96 6.65 5.33 5.23 3.61 5.36 6.23 5.53 1983 Cumber of Species 36 42 51 52 25 42 37 40 37 45 37 52 41 g Shannon Inden 4.27 4.01 4.60 4.74 3.67 4.41 4.16 4.28 3.56 3.51 4.17 4.72 4.18 m Evenness 0.82 0.74 0.81 0.83 0.79 0.82 0.8G 0.80 0.68 0.64 0.80 0.83 0.78 4 Richness 5.17 6.45 7.35 6.64 2.98 4.18 3.43 4.17 3.83 4.46 4.38 6.48 4.98 uS5 number of Species 31 60 36 46 41 51 57 54 51 53 54 44 48 b)o c

%m Shannon Inden 4.02 4.89 4.30 3.06 4.37 4.48 4.34 4.03 4.38 4.00 4.59 4.10 4.21 :C Evenness cichness 0.80 5.05 0.8) 8.95 0.82 6.54 0.55 6.98 0.81 5.55 0.79 6.41 0.74 7.29 0.70 5.97 0.77 5.43 0.70 5.70 0.00 7.10 0.75 6.71

'O.76 6.47

@M

<M a H es m WG 1785 41 38 39 46 52 53 58 50 61 50 39 48 Qg number of Species 53 Channon Indes 3.80 3.31 4.44 3.08 4.24 2.95 4.16 4.28 3.59 2.57 3.15 3.26 3.56 Q

Evenness 0.71 0.63 0.78 0.56 0.77 0.52 0.72 0.73 0.63 0.43 0.55 0.61 0.64 6g sichness 6.42 5.75 8.48 5.25 4.71 5.12 6.83 6.14 5.40 6.09 6.70 5.88 6.06 f

it's %M somber of Sp-eles 31 39 42 34 45 60 56 48 3.94 60 4.21 54 4.01 68 48 49 g Shannw Indes 3.79 4.48 3.73 1.50 4.04 3.78 4.04 4.44 4.40 3.86- y Evenness 0.77 0.85 0.69 0.29 0.74 0.64 0.69 0.70 0.71 0.70 0.73 0.79 0.69 *i Richness 4.54 6.40 6.32 3.72 4.54 7.37 6.20 4.75 5.96 6.34 9.58 7.99 6.14 If87 niumber of Species 42 44 29 33 33 36 50 39 33 36 35. 31 37 Shannon Indes 2.99 2.28 2.51 1.89 3.38 3.56 3.76 3.44 2.12 2.52 2.54 2.41 2.78 Evenness 0.55 0.41 0.52 0.37 0.67 0.69 0.67 0.65 0.42 0.48 0.53 0.48 0.53 Richness 5.24 5.58 3.24 3.71 3.36 3.67 4.80 3.77 3.11 3.93 3.00 3.79 4.00 I8I Shannon-meiner Inden (b)Mo data ICI Deta for period April 1980 rember 1987 represents s bgle entrainment samples collected monthly.

DUQUESNE LIGirt C(BlPANY 1987 ANNUE ENVIRONMENTE REPORT value is 1.0 and would occur when each species is represented by the same i number of individuals. The mean number of taxa each year ranged from 19 in 1973 to 49 in 1986. The highest number of taxa (68) ev3r observed in 1

phytoplankton studies at BVPS occurred during November of operational 3

year 1986.

Summary and Conclusions

] The phytoplankton community of the Ohio River near BVPS exhibited a sea-l sonal pattern similar to that observed in previous years. This pattern j is connon to temperate, lotic environments. Total cell densities were within the range observed during previous years. Diversity indices of j phytoplankton were similar or lower to those previously observed near

! BVPS.

i a

i 46

DUQUESNE LIGIfr COMPANY 1987 ANNUAL ENVIRONMENTAL REPORT D. ZOOPLANXTON Objectives Plankton sanpling was conducted to determine the condition of the zoo-plankton community of the Ohio River in the vicinity of the BVPS and to assess possible environmental impact to the zooplankton due to the opera-tion of BVPS.

Methods The zooplankton analysis was performed on one liter aliquots taken from the preserved one-gallon samples obtained from the intake bay. (see Phytoplankton methods, in Part C) . One liter from each sample was filtered through a 35 micron (.035 mm) mesh screen. The portion retained was washed into a graduated cylinder and allowed to settle for a minimum of 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months . The supernatant was withdrawn until 10 ml of concentrate remained. One ml of this thoroughly mixed concentrate was placed in an inverted microscope cell and examined at 100X magnification. All zoo-plankters within the cell were identified to the lowest practicable taxon and counted. Total density (individuals / liter), Shannon-Weiner and even-ness diversity indices (Pielou 1969), and richness index (Dahlberg and Odum 1970) were calculated based upon ono sample, which was collected below the skimmer wall from one operating intake bay.

Seasonal Disti *bution The zooplankton community of a river system is typically composed of protozoans and rocifers (Hynes 1970, Winner 1975) . The zooplankton com-munity of the Ohio River near BVPS during preoperational and operational monitoring years was composed primarily of protozoans and rotifers.

Total organism density and species composition of zooplankton from the Ohio River and entrainment samples were similar during 1976, 1977, 1978, and 1979 (DLCo 1980) . Samples collected from intake bays are usually representative of the zooplankton populations of the Ohio River.

During 1987, protozoans and rotifers accounted for 97% or nore of all zooplankton on all sample dates (Table V-D 1) . Total organism densities 47

TABLE V-D-1 MOKrHLY ZOOPLANKTON GROUP DENSITIES (Number / liter) AND PERCENT COMPOSITION FROM ENTRAI!SENT SAMPLES, 1987 BVPS Jan Feb Mar Apr May Jun Group 9/L 4 f/L 4 9/L 4 8/L 4 4/L 1 6/L 4 Protozoa 500 91 1,260 95 1,725 93 480 80 36,000 100 9,360 66 Rotifera 40 7 70 5 125 7 120 20 0 0 4,720 34 Crustacea 10 2 0 0 0 0 0 0 0 0 0 0 Em nN g Total 550 100 1,330 100 1,850 100 600 100 36,000 100 14,080 100 gg 80 Jul Aug Sep Oct Nov Cec n Group 9/L t 9/L t 9/L 4 g/L t 8/L 4 $/L 4 a c

Protozoa 10,080 87 6,750 87 3,520 90 1,030 74 4,320 93 725 81 g 1,400 12 950 12 280 7 370 26 320 7 175 19 8

Rotifera g Crustacea 70 1 100 1 120 3 0 0 0 0 0 0 Total 11,550 100 7,800 100 3,920 100 1,400 100 4,640 100 900 100

DUQUESNE LIGiff COMPANY 1987 ANNUAL ENVIRONMENTAL REPORT during the winter and early spring (January through April) were less than 1,850/ liter (Figure V-D-1, Table V-D-1) . Total organism densities peaked in May (36,000/ liter) and November. Zooplankton populations in the Ohio River usually exhibit a bimodal pattern. The maximum zooplankton density in the Ohio River near BVPS frequently occurs in the spring, although it is sometimes delayed until summer or early fall (Table V-D-2, Pigure V-D-1). Iow precipitation and warm weather in the spring provided optimum conditions for zooplankton populations to develop in May. The effect of a dry year and low river discharges was noted by Hynes (1970) to favor plankton populations.

The seasonal pattern of zooplankton densities observed in the Ohio River near BVPS is typical of temperate climates (Hutchinson 1967) . Zooplank-ton densities in winter are low due primarily to low water teraperatures and limited food availability (Winner 1975) . In the spring, food avail-abililty and water temperatures increase, which stimulates growth and reproduction. 4ooplankton populations decrease during the fall and win-ter from the summer maximum because optimum conditions for growth and reproduction decrease during this period.

Densities of protozoans during January through April of 1987 were between 480 and 1,725/11ter (Table V-D-1). Protozoans peaked in May, and progressively decreased until November when a small increase occurred.

Protozoans progressively decreased in December to densities of 725/ liter. Vorticella sp. and Strombidium spp. and Tintinnidium fluviatile were the common protozoans throughout the year. Vorticella sp. or Strombidium spp. dominated the protozoan assemblage during ten months (Table V-D-3) . The most abundant protozoan in the other months was Tintinnidium fluviatile (June and September) . These taxa have been a main part of the protozoan assemblage of the Ohio River t. ear BVP3 since the studies were initiated in 1972.

The rotifer assemblage in 1987 (Fir *- P-2) disp' eyed a .ypical pr P n of rotifer populations in te mpe" '

daters (Hutchinson Rotifer densities increased from >' liter in January to a 49

(36,000) g

~ a 1987

.l- AVERAGE 1976-1986 0 JAN-JUL 1974 AUG-OCT 1974 & 1975 14 - NOV-DEC 1975 13 -

12 -

11 -

$2 to -

U b]

_J 9- =

x \ E

$$r J 8-db 7- E E 6-

\ hc 5- k 4- j E

~

3_ '

N 2- I 3 1-0 7 f 't - ? ? , , , , , , ,

J F M A M J J A S O fl D MOllTH l FIGURE V-D-1 MONTIILY ZOOPLANK' ION DENSITIES IN TIIE OIIIO RIVER DURING PREOPERATIONAL (1974-1975) AND OPERATIONAL (1976-1987) YEARS BVPS

- . - .~ . __ . . _ _ . _ _ . . __ --- - -

TABLE V-D-2 MEAN 200PuueK10ef DENSITIES (ifuseer/ liter) BY MOptrN FROM 1973 TiglOUGN 1987, 05I0 RIVER AND 8vPS Total Zonplankton _Jan Feb Mar Apr May Jun Jul Aoq Sep_ Oct Nrw Dec 1973 I*I 50 90 588 154 945 1,341 -

425 180 87 1974 78 56 96 118 299 625 4,487 3,740 1,120 4,321 - -

1975 - - - - - - - 4,426 3,621 1,591 2,491 623 1976 327 311 347 10,948 2,516 5,711 3,344 3,296 3,521 518 446 577 ,

j 1977 147 396 264 393 5,153 4,128 1,143 1,503 3,601 553 9 34 486 l 1978 31 30 20 35 403 1,861 1,526 800 1,003 435 29 7 60 1979 357 96 228 534 2,226 599 2,672 4,238 950 370 542 550 1980 320 265 389 270 530 420 3,110 490 2,020 3,820 1,030 700 1981 190 360 220 500 840 310 3,800 1,940 4,490 1,850 760 370 p l

1982 1983 400 285 320 330 340 880 540 4,650 *

,,020 5,630 5.170 5,520 6,410 2,300 1,030 g 1,415 480 0,220 4,780 6.010 3,280 2,880 950 560 w 1984 270 290 295 290 560 1,520 610 1,380 6,700 6,080 570 390 1985 410 485 255 365 6,520 6,280 1,920 10,000 4,680 4,760 740 570 1986 350 350 360 860 14,280 1,650 6,390 11,040 14,760 1,815 590 350 1987 550 1,330 1,850 600 36,000 14,000 11,550 7,800 3,920 1,400 4,640 900 gg 2

Protosoa ue

% 88

'C t'

~

1973 45 63 82 56 les 331 -

346 135 58 * "o 1974 50 42 72 91 138 409 1,690 716 1,006 4,195 - -

hg 1975 - - - - - - -

835 3,295 1,141 2,239 452 1976 278 274 305 10,774 1,698 6 1,903 1,676 808 425 396 492 0 1977 135 365 236 312 4,509 2,048 808 947 2,529 401 825 344 1978 18 14 14 27 332 1,360 407 315 256 222 227 26 1979 312 64 ISO 380 2,052 459 340 712 609 326 454 328

[

1980 244 250 354 190 390 370 1,620 380 1,180 3,010 760 640 %

1981 1982 130 350 310 310 180 310 510 820 480 1,300 230 870 2,360 730 1,250 1,560 4,020 1,590 1,580 4,850 550 2,060 330 980 g

y 1983 250 320 315 500 390 6,940 1,320 5,C30 1,100 1,670 890 490 *i 1984 225 280 285 260 500 1,190 530 1,210 5,000 5,300 530 360 1985 365 455 230 355 3,280 4,440 1,340 6,680 1,860 4,080 670 520 1986 330 330 300 760 11,220 1,290 5,970 7,520 9,780 1,680 490 305 1987 500 1,260 1,725 480 36,000 9,360 10,080 6,750 3,520 1,030 , 4,320 725 Rotifera 1973 -

5 -

25 64 38 8 859 1,001 -

75 43 27 1974 26 12 22 24 155 213 2,783 2,939 115 120 - -

1975 - - - - - - - 3,339 313 444 250 164 1976 48 36 38 169 808 4,864 1,398 1,597 2,643 89 48 78 1977 12 31 26 76 631 1,984 328 539 1,022 147 10. 136 1978 29 33 15 14 16 24 72 61 67 47 22 48 1979 44 33 37 151 172 135 2,255 3,482 324 42 86 220 1980 72 14 33 80 140 50 1,470 110 790 780 260 50 1981 40 50 40 70 340 80 2,800 630 470 260 210 40

TA8E2 V-D-2 (Continued) motifera (Cont'd) Jan. Feb Mar Apr. May Jua Jul Aug Sep Oct Mov Dec 1982 50 10 30 50 3,340 130 3,250 1,550 3,840 1,520 240 40 1983 30 10 1,100 40 90 1,270 3,440 880 1,930 1,190 60 70 1994 45 10 10 30 40 330 80 160 1,700 700 40 30 1985 40 30 25 10 3,240 1,820 540 2,840 2,740 660 70 40 1986 20 20 60 100 3,060 300 330 3,280 4,560 120 100 45 1987 40 70 125 120 0 4,720 1,400 950 280 370 320 175 crustacea 1973 -

1 -

1 3 12 29 9 -

3 2 2 1974 2 2 3 3 6 3 14 85 7 6 - -

1975 1976 51 12 6 3 6 y 2 1 5 4 10 141 43 23 69 3 2 8 on 1977 - -

2 5 13 96 7 17 50 5 1 6 "

1978 4 6 3 2 6 48 12 27 75 9 5 5 1979 0 1 3 3 2 4 78 44 17 2 2 2 1980 3 1 1 0 0 0 20 0 50 30 10 10 1981 1982 20 0

0 0

0 20 0 270 60 0 10 0 0 h 10 10 20 20 60 90 40 0 10 g 1983 5 0 0 0 0 10 20 100 250 20 0 0 w 1984 0 0 1995 5 0 0

0 0

0 20 0

0 10 440 0

80 0

20 0

0 0

10 w[O 1986 1987 0 0 0 0 0 60 90 240 420 15 0 0 g$-

10 0 0 0 0 0 70 100 120 0 0 0 I*Ino sogle collected. N !i 3

4

TABLE V-D-3 DEpiSITIlts (Number / liter) OF MDST ASUREhnsfr 200PIAMKTON TAMA (Greater than 24 orn any date)

COtm F9EN! WTRAIISeff SAMPIAS JANUAHf TMOUGE IN,1987 SVPS Taxa Jan Feb Mar g g Jun Jul M Se2. M M M P90TO204 varma sp. _

1,200 Arm 11a sp. 50 20 520 44 160 50 codonella cratera 250 40 230 160 50 50 Cyclidium sp. 60 50 275 40 350 80 120 Cyphoderla agulla . -

Difflugia acuminata _ 28 20 1,550 120 25 Difflugia 11anetica 30 4 Difflugia sp. 200 yu Euglypha elllata 30 M y:-

Molophyrid cittate 40 150 40 800 400 630 300 200 M 8 Lionotus sp. 60 80 f z nuclearia simples 560 200 Phascalodon wortimila 280 MM U scuticocalistes 250 40 160 25 2 t' Strobilidium gyrene 700 '50 I,' 5 Strobillotus sp.

5trashidium sp. 20 125 40 31,000 4,000 4,130 1,800 920 464 2,840

'3.

i D[

Tintinnidium fluvitale 120 1,520 1,750 1,500 960 90 200 25 Tintinnnesis cylindrica 70 '

Turan1 11a sp. 400 SO [

Urotricha 320 Umwyrella sp. 300 $

vorticella sp. 270 970 400 100 2,600 350 200 440 170 275 g C111ste unidentified 30 125 40 350 40 120 :np l

d ROTIFERA l Cephalodella sp. 20 50 25 Kellicottia boatoniensis Feratella cochlearia 560 350 250 80 50 Keratella cochlearia f. tecta 320 Notoammata sp. 30 40 Monostyla bulla 25 Monostyla sp. 20 Polyarthre dolichaptera 20 3,680 280 300 120 30 25 Synchaeta ep. 190 200 25 Trichoceren pusilla 280 30 Rotifer unidentifled 30 100 40 50 25 i

,e--- v- g-y, -

-p -

w- -- , w-- c-- + -v ve- +w-yy y -m ---- - r2----w -

g ---r w - e --- gy--+- - - - - - -

_ _ - . _ = . _. ._ . _ . _ _ . _-

l9 TaaLE V-D-3 (Continued)

Tame Jan Feb Nor g g Jun Jul g g g g g 1UTE 300PLAsut10el 550 1,330 1,850 600 36,000 14,000 11,550 7,800 3,920 1.400 4,640 900 Tore of peost Abundant Tama 490 1,2 30 1,675 600 34,400

'I 12,400 10.010 6.650 3,560 1,320 4,320 900 Percenta9e Composition of 8eost Abundant zooplankton 89 92 91 100 96 89 47 4*, 91 94 93 100 W

to -

O

J l

b 5 I

Er -

O I la rg I

1 i

- - - - - , , . - . , . _ - , , - , - - , , , _ . , _ _ - , . . , - -- , -, . . _ ...-,,,_,.,.m,-. . , _ , . . _ _ _ . _ . . _ , _

g 5o5 5 O* ggp mle g A @D O

Z O

T O .@ i R t P

o .h O i

S 7

S8 E9

?A I1 T ,

I SS A - NE R EL E ?J 2 DP F - M I

T D PA O H - US R T V O S yJ 3 RTP GNV f

O E R EH M U NM

+ G I

VN

I I e

. M F KA NR AT

) LN 0 PE 0 O 0 $A OR ZO 6 F 3

(

$M A

E C

A T $F S

U R

C

c. J O

_ - - - - - - _ - - - - ~

2 1 0 9 8 7 g 5 4 3 2 0 1 1 1 eE@n$hv bt(E$ E 3Z

.i ov

DUQUESNE LIGiff COMPANY 1987 ANNUAL ENVIROIMENTAL REPORT maximum of 4,720/11ter in Junes a small secondary peak occurred in October (Table V-D-2). Rotifer populations generally decreased af ter October to densities of 175/11ter in December. Motifers were the second most abundant group during 1987. Keratella cochlearis and Polyarthra dolichoptera were the most abundant rotifers daring most of the year (Table V-D-3) .

Crustacean densities were low (0 to 120/ liter) through 1987 (Table V-D-1). Most crustaceans were collec ted ducirs summer (Figure V-D-2).

Crustacean densities never exceeded protozoan or rotifer densities and constituted from 0 to 3% of the total zooplankton density each month (Table V-D-1). Copepod nauplii were the most numerous crustaceans collected during 1987. Crustacean populations did not develop high den-sities due to unfavorable flow and turbidity conditions in the river during most of 1987. Crustaceans are rarely numerous in the open waters of rivers and many are eliminated by silt and turbulent water (Hynes 1970).

The highest Shannon-Weiner diversity value of 3.54 occurred in April while the maximum number of species (28) occurred in September (Table V-D-4). Evenness ranged from 0.28 in May to 0.93 in April. Richness varied from a low of 0.76 in May to a high of 2.89 in July. The number of species rangd from 9 in May to 28 in July. Iow diversity indices during May reflect the dominance of Strombidium spp.

Co w arison of Control and Non-Control Transects Zooplankton samples were not collected from stations on the Ohio River after April 1, 1980s therefore, comparison of Control and Non-Control Transects was not possible.

Comparison of Preoperational and Operational Data Population dynamics of the zooplankton community during the seasons of preoperational and operational years are displayed in Figure V-D-1.

Total zooplankton densities were lowest in winter, usually greatest in summer, and transitional in spring and autumn. This pattern in the Ohio 56

_. _._ m . ._ . _ . . . . _ _. .. . _ _ _ _ . . _ _ _ . . _ _ _ . . _ . _ . .

_ _ _ _ _ . - . _ m _ _ .

TABLE V-D-4 ZOOPLANKTON DIVERSITY IIE)1CES BY SONTH FOR M8TRAIleGNT SAMPLES, 1987 BVPS i

Date Jan Feb Mar Apr May Jun-l No. of Species 13 14 16 14 9 20 l Shannon-Meiner Index 2.64 1.76 3.40 3.54 0.89 3.15 5 e

4

( Evenness 0.71 0.46 0.85 0.93 0.28 0.73 l Richness 1.90 1.81 1.99 2.03 0.76 1.99 g Jul Aug Sep Oct Nov Dec X l l

5 3C No. of Species 28 25 20 20 16 16 18

.l l Shannon-Weiner Index 3.53 3.50 3.29 3.37 2.32 3.48 2.91 Evenness 0.73 0.75 0.76 0.78 0.58 C.87 0.70 Richness 2.89 2.68 2.30 2.62 1.78 2.20 2.08 l

l l

DUQUESNE LIGifr COMPANY 1987 ANNUAL ENVIRONMENTAL REPORT River sometimes varies from year to year which is normal for zooplankton populations in other river habita ts . Hynes (1970) concluded that the zooplankton community of rivers is inherently unstable and subject to constant change due to variations of temperatu re , flow, current, tur-bidity, and food source. Total densities of zooplankton during 1987 exceeded the range established during the preoperational years (1973 through 1975) and operational years (1976 through 1986) (Figure V-D-1) .

In 1987, the data indicate that the peak zooplankton densities occurred in May and November.

The species composition of zooplankton in the Ohio River near BVPS has remained stable during preoperational and operational years. The common or abundant protozoans during the past 14 years have been Vorticella, Codonella, Difflugia, Strobilidium, Strombidium, Cyclotrichium, Arcella and Centropyxis. The nest numerous and frequently occurring rotifers have been Ke ra tella , Polyarthra, Synchaeta, Branchionus and Trichocerca. Copepod naaplii have been the only crustacean taxa found consistently.

Community structure, as compared by diversity indices, has been similar during the past 14 years (Table V-D-5) . In previous years, low diversity indices and number of species occurred in winter; high diversities and number of species usually occurred in late spring and summer. The low diversity indices in May reflect the high numbers of the protozoan Strombidium spp.

In 1987, the diversity indices and species numbers were relatively low in January and February which was typical for months of winter and early spring. Shannon-Wiener diversity indices in 1987 ranged from 0.89 to 3.54 and were similar to the range of 1.80 to 3.28 that occurred during preoperational years from 1973 to 1975. The variation in evenness during 1987 (0.28 to 0.87) was usually at the upper portion of the range reported from 1973 to 1986 (0.21 to 0.93) .

58

k TABLE V-D-5 MEAN 200PIJMETON DIVERSITY IISICES BY N0 err 5 FItOM 1973 TIMOUGH 1987 IN THE OIIIO RIVER NEAR BVPS Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1973 ge)

Number of Spegies 8.44 15.29 21.28 25.07 21.96 22.86 16.33 14.40 14.30 Shannon IndextbI 1.80 3.06 3.08 2.79 2.25 2.20 2.21 2.31 3.10 Evenness 0.37 0.63 0.58 0.46 0.39 0.36 0.37 0.44 0.61 1974 Number of Species 14.64 9.18 14.92 17.75 23.25 15.56 21.14 18.89 9.56 14.47 Shannon Index 3.18 2.53 2.91 3.06 3.25 2.32 3.28 2.24 2.15 1.84 Evenness 0.62 0.56 0.57 0.58 0.55 0.41 0.60 0.41 0.42 0.30 1975 Number of Species g

" 24.75 18.75 14.38 17.44 15.38 e Sas.nnon Index 3.20

. Evenness 0.69 1.86 0.44 2.90 0.77 2.01 0.49 3.20 0.82 2

1976 b so I

Number of Species 7.00 9.13 8.69 17.56 19.19 23.56 28.06 23.50 23.56 11.19 11.75 Shannon Index 1.67 2.64 2.24 0.89 3.06 2.33 3.36 3.63 2.76 2.73 8.75 1.60 2.64 g

Evenness g 0.60 0.84 0.73 0.21 0.72 0.51 0.70 0.80 0.61 0.79 0.51 0.75' La gDe C 1977 <3 t*

H H Number of Species 4.00 10.00 12.00 13.31 21.00 25.62 Ehannon Index 1.53 2.59 3.01 2.98 3.15 3.45 22.88 3.32 25.50 3.60 36.75 3.71 16.88 3.35 20.31 3.42 15.31 3.42 hh m Evinness 0.78 0.79 0.87 0.81 0.72 0.74 0.73 0.79 0.77 0.71 0.82 0.86 r) 1978 Number of Speciars 0.12 7.12 4.31 5.12 7.62 6.25 10.25 11.25 12.50 0.25 10.88 10.38 g

Shtnnon Index 2.48 2.41 1.33 Evenness 0.83 0.85 1.53 0.74 1.70 0.71 1.53 0.52 0.50 2.50 2.44 2.53 2.28 2.15 2.00 g 0.76 0.70 0.70 0.73 0.62 0.83 1979 Numoer of Species 10.62 6.00 10.25 17.25 14.25 16.88 21.50 k

15.88 18.12 12.00 14.62 14.00 Shannon Index 2.51 2.52 3.05 3.42 2.36 3. f.2 2.42 3.30 3.36 2.99 2.84 3.10 Evenness 0.74 0.93 0.90 0.86 0.58 0.80 0.60 0.74 0.80 0.84 0.74 C.83 1980(c)

, Number of Species 11.62 11.00 12.50 10.00 8.00 15.00 21.00 15.00 18.00 22.00 18.00 18.00 Shannon Index 2.51 2.70 3.03 2.41 2.00 2.91 3.63 2.79 3.23 2.88 3.26 3.36 EvSnness 0.70 0.78 0.84 0.72 0.66 0.74 0.82 0.71 0.77 0.64 0.78 0.80 1981 Number of Species 8.00 12.00 7.00 11.00 19.00 12.00 23.00 24.00 20.00 21.00 17.00 10.00 Shannon Index 2.14 3.02 2.28 2.32 3.44 2.73 2.96 3.55 2.62 3.05 2.66 2.47-Evenness 0.71 0.84 0.81 0.67 0.81 0.76 0.65 0.77 0.60 0.69 0.65 0.74 V

TABLE V-D-5 (Continued)

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1982 Number of Species 10.00 9.00 11.00 22.00 27.00 20.00 37.00 36.00 43.00 34.00 19.00 17.00 Shannon Index 2.99 2.22 2.89 3.59 2.46 3.20 3.82 4.28 3.86 3.09 3.54 3.14 Even::ess 0.90 0.70 0.83 0.80 0.52 0.74 0.73 0.83 0.72 0.61 0.83 0.77 1983 Number of Species 18.00 10.00 23.00 14.00 17.00 24.00 34.00 30.00 37.00 33.00 17.00 18.00 Shannon Index 3.20 2.39 2.41 3.09 3.54 2.36 3.56 2.65 3.92 3.43 3.28 3.54 Evenness 0.76 0.71 0.53 0.81 0.86 0.51 0.70 0.54 0.75 0.68 0.80 0.85 1984 Number of Species 17.00 10.00 7.00 10.00 13.00 18.00 12.00 18.00 23.00 19.00 14.00 11.00 .g Shannon Index 3.29 2.64 0.82 2.10 2.26 2.63 2.40 2.28 3.62 2.84 2.89 2.52 e Evenness 0.80 0.79 0.28 0.63 0.61 0.63 0.67 0.54 0.80 0.67 0.74 0.72 $

1985 8 C

Number of Species 13.00 12.00 9.00 10.00 16.00 19.00 18.00 32.00 27.00 20.00 19.00 13.00 Shannon Index 2.32 1.98 1.72 1.64 2.90 2.91 3.35 3.60 3.72 3.27 3.25 1.97 Evenness 0.62 0.55 0.53 0.49 0.72 0.68 0.80 0.72 0.78 0.76 0.76 0.53 g to

$ 1986 Number of Species 12.00 13.00 15.00 19.00 21.00 22.00 23.00 26.00 32.00 17.00 15.00 21.00 p

6-e M 3.13 3.10 NO Shannon Index 2.97 2.84 3.15 2.26 3.74 2.94 3.69 4.19 2.90 2.83 o Evenness 1987 0.83 0.76 0.80 0.74 0.74 0.84 0.65 0.78 0.84 0.71 0.72 0.70 lk g

a Number of Species 13.00 14.00 16.00 14.00 9.00 20.00 28.00 25.00 20.00 20.00 16.00 16.00 Shannon Index 2.64 1.76 3.40 3.54 0.89 3.15 3.53 3.50 3.29 3.37 2.32 3.48 Evenness 0.71 0.46 0.85 0.93 0.28 0.73 0.73 0.75 0.76 0.78 0.58 0.87 g 3

W

>3 I*I Blanks represent periods when no collections were made.

(b)Shannon-Meiner Index (c) Data for period April 1980-December 1987 represents single entrainment samples collected monthly.

DUQUESNE LIGHT COMPANY 1987 ANNUAL ENVIRONMENTAL REPORT Summary and Conclusions Zooplankton densities throughout 1987 were typical of the temperate zoo-plankton community found in large river habita ts. Total densities exceeded the range of those reported in previous years. Populations developed highest densities in May and a secondary peak occurred in November. Protozoans and rotifers were always predominant. Common and abundant taxa in 1987 were similar to those reported during preopera-tional and other operational years. Shannon-Weiner diversity, number of species, and evenness were within the ranges of preceding years. Based on the data collected during the twelve operating years (1976 through 1987) and the three preoperational years (1973 through 1975), it is concluded that the overall abundance and species compocition of the zooplankton in the Ohio River near BVPS has remained stable and possibly improved slightly over the fif teen year period from 1973 to 1987. The data indica te that increased turbidity and current from high water conditions have the strongest effects of delaying the population peaks and temporarily decreasing total zooplankton densities in the Ohio River near BVPS.

61

-DUQUESNE LIGifr COMPANY 1987 ANNUAL ENVIRONMENTAL REPORT E. FISH Objective Fish sampling was conducted in order to detect any changes which might occur in fish populations in the Ohio River near BVPS.

Me thods_

Adult fish surveys were performed in May, July, September, and November 1987. During each survey, fish were collected at the three study trans-Lots (Figure V-E-1) using gill nets, electrofishing and minnow traps.

The gill nets consisted of five 25-ft. panels of 1.0, 2.0, 2.5, 3.0, and 3.5 inch square mesh. Two nets were positioned close to shore at each transect, with the small mesh inshore. As transect 2 is divided by Phillis Island into two separate water bodies consisting of the main river channel (2A) and the back channel (2B), south of the island, a total of eight gill nets were set per sampling mnth. Nets were set for approximately 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months . All captured fish were identified, counted, measured for total length (mm), and weighed (g) .

Electrofishing was conducted with a boat-mounted boom electroshocker.

Direct current of 220 volts and one to two amps was generally used.

Shocking time was maintained at 10 minutes per transect for each survey.

The shoreline areas of each transect were shocked and large fish pro-cessed as described above for the gill net collections. Small fish were immediately preserved with 10% formalin and returned to the laboratory for analysis. Non-game fish were counted and a batch weight obtained for the entire sample. The length range was determined by visual inspection and measurement of the largest and smallest fish.

Minnow traps were baited with bread, cheese, and sucrose and placed next to the inshore side of each gill net on each campling date. These traps were painted black and brown with a camuflage design and were set for 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months . All captured fish were preserved and processed in the laboratory in the manner described for electrofishing.

62

- - a .= ..

8 1 g : c,3, eu-. c.22 ....

t m yi , s.

.w s . , '...

'W. . . ,( . . . 3:L h~f

,, YT't,MIDL.>Atj.D e w

N. ? ' 'sg 13 v: . q '\, g...

3 p -

4 .. .u i . .

w

/ 4es,1-- g' , e \ g mu N.

i c,*4g J.. U sr 's,.3:'

5. O . r E.

'$ g a 9

b.,.,, ,c,'

y

' i; g. ,, hV p BRUCE O hyh.

,'c."

,s. g gO MANSFIELD PLANT

,y ?g- g S,1 : ,

h i

l'i

, '( ;u t,,;%, p 1 a -

.. .;t.g esset se -ausg, H m t*

44 e 30 0 s ....

8 .

i og 5

n 0

999 .

b n- ,. ;- , Ei yg as

,i; .,,

9, \ SynnOI.s g<

I.EGEND .f- . s g

I- 3 STATIOh NUMBER %

D1 DEAVER VAILEY DISCHARGE \0 .' .

EI.ECTROFISIIING D2 INDUS'IRI AL DISCIIARGE [.. I (g

O AID 'ID NAVIGATION i

.b'I _I.M 23I /

BEAVER '

I I Gill NET MINNOW TRAP

TRANSMISSION LINE VAI.I.EY f'rier,s nem STATION FIGURE V-E-1 FISil SAMPLING STATIONS BVPS

DUQUESNE LIGiff COMPANY 1987 ANNUAL ENVIRONMENTAL REPORT Results Fish population studies have been conducted in the Ohio River near BVPS from 1970 through 1987 These surveys have collected 63 fish species and two hybrids (Table V-E-1) . In 1987, 28 fish species were collected. A combined total of 1364 individuals were collected in 1987 by gill net-ting, electrofishing and minnow traps (Table V-E-2).

A total of 1,158 fishes, representing 19 species were collected by elec-trof1shing (Table V-E-3). Collectively, the minnows and shiners accounted for 68.8% of the total electrofishing catch in 1987. Gizzard shad, also a forage species, represented 24.4% of the catch. Carp and spotted bass both accounted for 1.7% of the catch. Smallmouth bass accounted for 1.0%. Each of the other taxa accounted for less than 1% of the total. Most of the fish sanpled by electrofishing were collected in September (77.6%) . The fewest fish were collected in November (1. 6%) .

It should be noted that "observed" fishes were included in the catch per unit effort. This was necessary because of the turbidity and swif tness of the high water. Since the netters could not physically collect these stunned fishes, they were recorded as "observed". This accounts for the numbers of electroshocked fishes being identified to the genus level.

The gill net results varied by nonth with the highest catch in the month of May and September (26 fish) . July was the next highest month with 22 fish. November catch resulted in 6 fish. Gill net sampling typically results in catching more fish in warmer weather when fish are usually more active, thus the low sample numbers encountered from November are to be expected (Table V-E-4) .

A total of 126 fish were captured using minnow traps in 1987 (Table V-E-2). September had the highest catch with 64 fish.

The most common species (i.e., those which contributed more than 1% to the annual total catch) collected through the use of gill nets, electro-64

I DUQUESNE LIGHT COMPANY 1987 ANNUAL ENVIRONMENTAL REPORT TABLE V-E-1 (SCIENTIFIC AND C0eEON NAME)1 FAMILIES AND SPECIES OF FISH COLLECTED IN THE NEW CUMBERLAND POOL OF THE OHIO RIVER, 1970-1987 BVPS Family and Scientific Name Common Name Lepisosteidae (gars)

Lepisosteus osseus Longnose gar Clupeidae (herrings)

Alosa chrysochloris Skipjack herring Dorosoma cepedianum Gizzard shad Hiodontidae (mooneyes)

Hiodon tergisus Mooneye Salmonidae (salmon and trouts)

Salmo gairdneri Rainbow trout Esocidae (pikes)

Esox lucius Northern pike E,. masquinongy Muskollunge E. lucius X E,. masquinongy Tiger muskellunge

. Cryprinidae (minnows and carps)

Campostoma anomalum Central stoneroller Carassius auratus Goldfish Cyprinus carpio Common carp C. carpio X C. aura tus Carp-goldfish hybrid Ericymba buccata Silverjaw minnow Nocomis micropogon River chub Notemigonus crysoleucas Golden shiner Notropis atherinoides Emerald shiner

!b chrysocephalus' Striped shiner 2 lb hudsonius Spottail shiner

!b rubellus Rosyface shiner Ib spilopterus Spotfin shiner Ib stramineus Sand shiner

!b volucellus Mimic shiner Pimephales notatus Bluntnose minnow Rhinichthys atratulus Blacknose dace Semotilus atromaculatus Creek chub 65

}

DUQUESNE LIGHT COMPANY 1987 ANNUAL ENVIROIMENTAL REPORT TABLE V-E-1 (Continued)

Family and Scientific Name Common Name Catostomidae (suckers)

Carpiodes carpio River carpsucker Carpiodes cyprinus Quillback Catostomus commersoni White sucker Hypentelium nigricans Northern hog sucker Ictiobus bubalus Smallmouth buffalo I niger Black buffalo Moxostoma anisurum Silver redhorse

!b carinatum River redhorse

!b duquesnei Black redhorse pl. erythrurum Golden redhorse pb macrolepidotum Sherthead redhorse Ictaluridae (bullhead and catfishes)

Ictalurus catus White catfish I,. melas Black bullhead J,. natalis Yellow bullhead I. nebulosus Brown bullhead I,. punc ta tu s Channel catfish Noturus flavus Stonecat Pylodictis olivaris Flathead catfish Percopsidae (trout-perches)

Percopsis omiscomaycus Trout-perch Cyprinodontidae (killifishes)

Fundulus diaphanus Banded killifish Atherinidae (silversides)

Labidesthes sicculus Brook silverside Percichthyidae (temperate basses)

Morone chrysops White bass Centrarchidae (sunfishes)

Ambloplites rupestris Rock bass Lepomis cyanellus Green sunfish It . gibbosus Pumpkinseed L. macrochirus Bluegill Micropterus dolomieui Smallmouth bass pl. punctulatus Spotted bass pl. salmoides Largemouth bass Pomoxis annularis White crappie P,. nigromaculatus Black crappie 66

DUQUESNE LIGiff COMPANY 1987 ANNUAL ENVIROtG4 ENTAL REPORT TABLE V-E-1 (Continued)

Family and Scientific Name Common Name Percidae (perches)

Etheostoma blennioides Greenside darter E_. nigrum Johnny darter E. sonale Banded darter Perca flavescens Yellow perch Percina caprodes Logperch P. copelandi Channel darter Stizostedion canadense Sauger S. vitreum vitreum Walleye Sciaenidae (drums)

Aplodinotus grunniens Freshwater drum 1Nomenclature follows Robins, et al. (1980).

2 A former subspecies of N_. cornutus (Gilbert,1964) and previously reported as common shiner.

l 67

. - < _ - . - , . -. -,._e -.._. - - - . - .., .---.-i.yv -,e--,--, .--,m.. . ,-,,y.. ..

TABLE V-E-2 NLMBER OF FISH COLLECTED AT VAktOUS TRANSECTS BY GILL NET (G), ELECTROFISHING (E)

AND MINNOW TRAP (M) IN THE s'5M CUMBERLAND POOL OF THE OHIO RIVER, 1987 BVPS Percent 1 2A 2B 3 Grand Total Annual Annual Taxa G_ E M G E, M, G, M G E E Total E_ M, G_ M, Total [

Longnose gar 1 1 1 0.1 O

Gizzard shad 1 51 1 110 7 75 2 47 4 283 7 294 21.6 Comunon carp 3 10 1 4 1 3 7 3 12 20 32 2.3 River chub 1 1 1 0.1 %gg Emerald shiner 39 9 7 16 16 5 39 43 101 73 174 12.8

Spottail shiner 1 3 1 4 17 8 18 26 "

g Spotfin shiner 8 1 6 1 14 15 1.9 1.1 s[

Sand shiner 6 2 2 1 3 9 Mimic shin.?r 1 1 2 5 14 1.0 8O.

5 2 0.1 Bluntnose tvinnow 1 1 1 O 0.1 Shiner sp. 76 62 1 13 524 675 1 676 49.6 River carpsucker 2 2 Northern hog sucker 1 2 0.1 $

1 1 0.1 Black redhorse 1 1 1 0.1 Golden redhorse 1 1 1 4 6 1 7 b 0.5 Shorthead redhorse 2 1 1 Channel catfish 3 1 1 2 1 3 4 0.3 $

1 12 17 3 20 1.5 Flathead catfish 1 1 1 0.1 White bass 2 2 2 0.1 Rock bass 1 1 2 1 1 4 1 1 6 0.4 Bluegill 1 2 3 3 0.2 Smallmouth bass 4 7 1 1 1 1 12 1 14 Spotted bass 1.0 1 5 1 2 4 4 8 2 10 3 2 17 20 5 42 3.1 White crappie 2 2 2 0.1 Black crappie 2 2 2 0.1 Bass sp. 3 1 1 5 5 0.4 Yellow perch 1 1 1 1 2 0.1 Sauger 1 1 2 5 5 4 9 0.7 Walleye 1 1 1 0.1 Freshwater drum 2 2 4 4 0.3 Total 13 203 14 8 204 33 9 127 14 50 624 65 80 1,158 126 1,364

TABLE V-E-3 NUMBER OF FISH COLLECTED PER MONTH BY GILL NET (G), ELECTROPISHING (E), AND MINNOW TRAP (M)

IN THE NEW CUMBERLAND POOL OF THE OHIO RIVER, 1987 BVPS Percent May Jul Sep Nov Grand Total Annual Annual i Taxa G E, G E M E M E M_ G_ G_ M, G E M Total Total g

, Longnose gar 1 1 1 0.1 w

Gizzard shad 124 2 47 2 107 7 5 4 283 7 294 Common carp 7 6 21.6 o 1 2 5 River chub 3 1 7 1

12 20 1

32 1

2.3 0.1 Emerald shiner 4 4 21 2 76 36 31 101 73 174 12.8 b Spottail shiner Spotfin shiner 14 8

1 13 5 8 18 26 1.9 gh 1 14 15 1.1

$ Sand shiner 2 6 3 1 2 9 5 14 1.0 R t-*

yE Mimic shiner 1 1 Bluntnose minnow 1 2 2 0.1 Og 1 1 0.1 Shiner sp. 14 660 1 1 675 1 676 49.6 g River carpsucker 2 2 2 Northern hog sucker 0.1 $

1 1 1 0.1 Black redhorse 1 Golden redhorse 4 1 1 1 1 0.1 g 1 6 Shorthead redhorse 2 1 1 1 7 0.5 g 1 3 4 0.3 :o Channel catfish 10 7 3 17 3 20 d 1.5 Flathead catfish 1 1 1 0.1 White bass 1 1 2 2 0.1 Rock bass 1 1 3 1 4 1 1 6 0.4 Bluegill 1 2 3

3 0.2 Smallmouth bass 1 5 5 1 1 1 1 12 1 14 1.0 Spotted bass 2 2 5 1 2 10 17 3 17 20 5 42 3.1 white crappie 2 2 2 0.1 Black crappie 2 2 2 0.1 Bass sp. 1 3 1 5 5 0.4 Yellow perch 1 1 1 1 2 0.1 Sauger 1 2 2 2 2 5 4 9 0.7 Walleye 1 1 1 0.1 Freshwater drum 2 1 1 4 4 0.3 TOTAL 26 142 5 22 98 IS 26 899 64 6 19 39 80 1,158 126 1,364

DUQUESNE LIGHT COMPANY 1987 ANNUAL ENVIRO! MENTAL REPORT TABLE V-E-4 NUMBER OF FISH COLLECTED BY GILL NET, ELECTROFISHING AND MINNOW TRAP AT TRANSECTS IN THE NEW CUMBERIRID POOL OF THE OHIO RIVER, 1987 BVPS Transect Gill Net 1 2A 2B 3 Total Average May 6 0 1 19 26 6.5 July 3 3 4 12 22 5.5 September 3 3 4 16 26 6.5 November 1 2 0 3 6 1.5 Total 13 8 9 50 80 Average 3.3 2.0 2.3 12.5 Electrofishing May 22 77 29 14 142 35.5 July 22 32 26 18 98 24.5 September 154 87 69 589 899 244.8 November 5 8 3 3 19 4.8 Total 203 204 127 624 1,158 Average 50.8 51.0 31.8 156.0 Minnow Trap May 2 0 1 2 5 1.3 July 0 9 9 0 18 4.5 September 5 22 2 35 64 16.0 November 7 2 2 28 39 9.8 Total 14 33 14 65 126 Average 3.5 8.3 3.5 16.3 70

DUQUESNE LIGHT COMPANY 1987 ANNUAL ENVIRONMENTAL REPORT fishing and minnow traps included the followings gizzard shad, common i carp, emerald shiner, spottail shiner, spotfin shiner, channel catfish, spotted bass, and shiners spp. The remaining 22 species each accounted for 1% or less of the total.

Comparison of Control and Non-Control Transects Comparisons of the data obtained from the Control Transect (1) with that from the Non-Control Transects indicate that the fish populations have fluctuated slightly since 1974 (Table V-E-5). However, comparisons between years include many natural variables and can be misleading.

Fluctuations in catches occur with changes in the physical and chemical properties of the river 's ambient water quality. Since electrofishing efficiency depends largely on the water's conductivity, any sampling conducted during extremes in this parameter will affect catch-per-unit-effort. In addition, turbidity and current affects the collectors' ability to observe the stunned fish. Direct sunlight also influences where fishes congregate, thus determining their susceptibility to being shocked. Electrofishing collects mostly small forage species (minnows and shad) and their hight.y fluctuating annual populations were reflected in differences in catch-per-unit-effort from year to year and station to station. However, gill nets catch mostly game species and are more indicative of changes in fish abundance. When comparing gill net data (Table V-E-6) , little change is noticed either between Control and Non-Control Transects or between pre-operational and operational years. The 1987 gill net ca tch-per-unit-e ffor t (fish /24 hours) averaged middle to upper end of the range established by previous collections with 1.5 and 2.8-3.1 for the Control and Non-Control Transects respectively. Con-tr ibuting to these yields are notably high catches of carp, channel catfish, and spotted bass.

Comparison of Preoperational and Operational Data Electrofishing and gill net data, expressed as catch-per-unit-effort, for the years 1974 through 1987 are presented in Tables V-E-5 and V-E-6.

These fourteen years represent two preoperational years (1971 and 1975) and twelve operational years (1976 through 1987). Fish data for Transect 71

TASLE V-0-5 ELECTROFISHING CA1CH (FISH / HOUR) MEANS (X) AT TRANSECTS IN THE NDi CIMBERIAND POOL OF THE ORIO RIVER, 1974-1987 BVPS Transect 1 Species 1974a 1975b 1976 C 1977 c 1978 C 1979c 1980d 1981d 1982d 1983d 19gg d 1985' 1986d 1987d longnose gar - - - - - - - - -

1.5 - - - -

Cizzard shad -

2.1 1.2 2.0 - -

3.1 3.0 0.8 69.0 31.5 27.0 36.0 76.5 Tiger muskellunge - - - - - -

0.8 - - - - - - -

Muskellunge - - - - -

0.5 - - - - - -

Northern pike - - - - - - - - -

Pike sp. - - - - - - - - - -

1.5 - - -

Coldfish - -

0.7 - - -

2.3 -

0.8 - - - - -

e Carp 5.9 - -

1.0 12.5 -

20.8 15.8 1.5 30.0 66.0 13.5 9.0 15.0 $

-J River chub - - - - - - -

Colden shiner - - - - - - - 0.8 - -

1.5 - - -

Emerald shiner 42.0 441.7 18.7 57.0 22.8 58.4 51.5 151.5 114.8 279.0 12.0 6.0 46.5 58.5 b O

Striped shiner - - - - - - - - -

1.5 - - - -

Spotta11 shiner - - - - -

1.5 d

Spotfin shiner 4.8 7.0 0.5 3.0 4.5 1.5 - - -

f Z 0.9 - - -

j y

ha Sand shiner Mimic shiner 57.6 129.1 52.5 3.5 95.9 7.0 8.8 0.5 93.6 1.6 32.3 6.2 23.2 3.0 19.5 6.0 6.0 3.0 -

4.5 19.5 9.0 1.5

@M

< t*

Bluntnose minnow 33.5 72.3 53.2 57.8 12.8 89.4 15.4 18.0 21.8 9.0 4.5 1.5 4.5 -

Creek chub 0.9 -

0.5 0.5 - - - - - -

bog Stoneroller - - - - - - - - -

Blacknose dace - - - - - - - - - - - - -

Shiner sp. - - - - - - - - - -

78.0 3.0 528.0 114.0 0.3 1.5 1.5 3.0 white sucker Northern hog sucker 1.5 1.5 0.7 - -

1.0 0.3 - - - - - - -

Redhorse sp. - - - - - - - - - - - - - -

h Silver redhorse - - - - - - - - 0.0 1.5 -

3.0 - -

g Black redhorse - - - -

0.8 1.0 - - - - - - - -

p Colden redhorse - - - - - - 1.5 1.5 -

1.5 6.0 1.5 - - 8 Shorthead redhorse - - - - - - -

0.8 0.0 -

1.5 - -

3.0 rellow bullhead - - - - - - - - - - - - - -

- Brown bullhead - - - - - - - - - - - - - -

1 Channel catfish - - - -

0.3 - -

0.8 - - - - -

1.5 Catfish sp. - - - - - - - - - - - - - -

Trout-perch - - - - - -

1.5 -

0.8 -

1.5 - - -

Banded killifish - - - - - - - - - - - - -

"MAY-JUL bang, ,gy CMAY-SEP, NOV dnAr, Jut, SEP ANo mov

nAr, autr SEP ANo nec

TABL3 V-E-5 (Cor:tinued)

Transect 1 Species 1974 8 1975D 1976C 1977c g,yg e 1979 c 1980 0 1981d 1982d 19g3 d 39,4 d 19gge 19860 19870 Brook silverside - - - - - - - - - - - - - -

white bass - - - -

0.5 - - - - - - - - -

Rock bass - - - - - - - - - - - - - -

Suntish (Leponis) hybrid - - - - - - - - - - - - - -

Green sunfish - - - -

0.3 0 . *s - - - - - - - -

Pugkinseed - - - -

0.3 0.5 - - -

1.5 - - - -

Cluegill 6.6 -

1.5 -

3.0 0.5 -

1.5 0.8 1.5 1.5 -

1.5 -

Eunfish sp. - - - - - - - - - -

1.5 - - -

Smallmouth bass 0.9 -

2.3 3.0 0.3 0.5 4.6 3.0 3.8 4.5 9.0 3.0 1.5 6.0 g Spotted bass 0.9 - -

2.7 -

2.6 4.6 1.5 -

4.5 9.0 1.5 3.0 7.5 w Largemouth bass Sass sp.

1.1 1.0 1.0 0.8 0.8 4.5 3.0 3.0 3.0 4.5 white crapple -

1.5 - U 1.5 -

clack crappie - - - - - - - - -

1.5 -

1.5 - -

Johnny darter - - - -

0.5 - - - - - - - -

Yellow perch - - - -

C.3 0.5 -

0.8 - -

3.0 - - -

g@

Logperch - - - -

C.3 0.5 - - - - -

1.5 -

g te w Sauger - - - - - - - - - - -

1.5 1.5 1.5 gp La*

walleye Freshwater drum 0.5 - - - - - - -

3.0 - - -

g 3.0 3.0 g Unidentified - - - - - - - - - - - - - - '

Total 150.8 645.2 139.4 235.9 65.6 250.6 146.9 225.2 176.0 418.5 241.5 67.5 670.5 304.5 ()

"MAY-JUL bgg C

MAY-SEP, Mmf k T, JUL, SEP AIO NOV

% r, Jutr, SE, um 0.c 5

TABLE V-C-5 (Continued)

Transect 2A, 29, 3 b

Species 1974* 1975 1976c 1977c g,73c g,7,c 1910d 1,gg d 1982d 1983d 1984 d 1985' 1986 d 1,g)d Longnose gar - - - - - - - - - - - - - -

Cizzard shad 0.9 1.0 1.4 0.7 0.3 2.1 2.5 21.5 19.2 19.5 Tiger muskellunge - - - -

76.5 73.0 57.5 116.0 Muskellunge - - - - - -

0.3 - - -

0.5 - - -

Northern pike - - - -

0.3 - -

0.2 - - - - - -

Pike sp. - - - - - - - - - -

1.0 1.0 0.5 -

Goldfish - - - - - -

C.6 - - - - - - -

Carp 3.3 0.5 0.7 1.2 6.6 1.2 4.2 River chub - - - - -

6.0 4.8 3.0 20.2 10.0 9.5 5.0 Golden shiner - - - - - -.

0.5 0.2 0.5 - -

0.5 - P Emerald shiner 67.7 239.9 13.1 33.P 23.9 53.7 37.0 163.5 Striped shiner - - - - - - - -

21.8 493.5 22.5 21.5 36.5 31.0 $

4 Spottail shiner - - - - - - - - - - -

0.5 g

spotfin shiner 4.3 3.5 2.0 6.1 4.9 0.5 0.5 1.0 0.8 1.0 4.0 1.5 -

2.6 0.5 Sand shiner 17.4 81.0 52.6 26.2 13.3 25.8 22.8 o 45.2 10.2 26.0 - -

0.5 1.5

Mimic shiner - -

1.8 1.1 0.3 2.2 1.0 3.2 4.8 Bluntnose minnow 6.1 31.2 45.3 44.9 21.4 40.8 10.2 5.2 14.2 7.0 38.5 0.5 1.0 1.5 0.5 0.5 0.5 h :E Creek chub - - - - - - - - - - - - -

M Stoneroller - - - -

0.3 - - - - - - - - M Blacknose dace - - - - -

0.2 - - - - **

Shiner sp. -

o white sucker -

0.5 0.3 0.1 0.3 0.5 -

40.0 42.5 566.5 299.5 g%

Northern hog sucker - - -

0.3 0.3 0.3 0.2 0.8 - O medhorse sp.

0.5 - -

0.3 - - - - - -

0.5 1.5 0.5 Silver redhorse 0.3 -

0.2 0.2 1.0 - - -

Black redhorse - - -

0.3 0.3 Golden redhorse - - - -

2.0 - -

0.8 0.2 1.5 1.5 -

1.0 2.0 0.5 N Shorthead redhorse - - - -

0.4 - -

0.2 1.5 0.5 8

Yellow bullhead 0.4 0.5 0.2 -

0.2 - - - - - - -

Brown bullhead

O 0.4 -

0.2 -

0.1 - -

0.1 - - -

0.5 - d Channel catfish -

1.0 0.2 1.1 0.3 0.7 0.5 1.2 1.0 0.5 Catfish sp. - - -

0.5 -

1.5 1.0 0.5 1.0 - -

Trout-perch - - - -

0.1 0.5 0.2 -

0.2 5.0 - - - -

Banded killifish - - - -

0.1 - - - - -

0.5 - - -

Brook silverside - - - - - - - - -

3.0 - - -

white bass - - - -

0.1 -

0.5 - - - - - -

Rock bass - -

0.4 -

0.1 - -

0.5 - - - -

0.5 0.5 "MAY-JUL bAUG, Nov CMAY-SEP, NOV OMkY, JUL, SEP ADO NOV

MAY, JULY, SEP AS DEC

TABLE V-E-5 (Continued)

Transect 2A, 2B, 3 Species 1974a 1975b 1976C 1977C 1978 C 1979 C 1980d y,gg d 1982d 1983d 1984 d 1985' 1986d 19g7 d Sunfish (Leposts) hybrid - - - 0.3 - - -

0.2 - - - - - -

Green sunfish - - -

1.4 0.3 0.5 0.2 0.2 0.8 -

1.0 0.5 0.5 -

Pumpkinseed -

0.5 0.7 1.0 0.5 - -

0.2 0.2 -

1.0 - - -

Bluegill 1.9 0.6 0.2 0.3 1.4 0.2 -

0.8 0.2 1.5 1.0 0.5 0.5 1.5 Sunfish sp. - - - - - - - - - -

0.5 0.5 - -

Smallmouth bass 0.8 -

0.6 1.G 0.3 0.9 2.8 6.5 5.8 4.0 6.0 2.0 3.5 4.0 Spotted bass 0.4 - -

2.7 -

2.1 1.5 0.5 0.8 2.5 9.5 1.0 2.5 7.5 Largemouth bass 1.4 -

1.1 0.7 0.7 0.3 0.2 0.8 0.5 2.5 - -

0.5 -

Bass sp. - - - - - - - - - -

11.0 1.5 2.5 1.0 White crappie - - - -

0.1 - 0.8 - - -

0.5 -

0.5 - P Black crapple 0.5 -

0.3 - -

0.2 - - - -

1.0 0.5 - -

M Johnny darter 1.0 1.0 0.4 -

0.1 0.2 - - - - - - - -

Yellow perch - - - -

0.1 0.2 0.2 - - -

0.5 - - -

o togperch - - -

0.3 -

0.7 0.2 0.8 0.8 1.0 0.5 - 1.0 -

Sauger - - - - - -

0.5 0.2 - - -

1.0 0.5 1.5 walleye - - - - - - - - - - - - - -

[

Freshwater drum - - - - - -

0.2 - - - -

3.0 -

1.0 g y Unidentified - - - - - - - - - -

1.0 - - -

Total 106.5 359.2 125.3 122.8 72.5 153.6 91.3 224.0 102.3 614.5 219.5 126.0 692.5 477.5 [

O "MAY-JUL bAUG, NOV O C

MAY-SEP, NOV h Y, JUL, SEP AND NOV h

'MAY, JULY, SEP AND DEC 8

=

8

TABLE V-E-6

~

CILL NET CATC3 (FIER/24) NOUR MEANS (I) AT TRANSECTS 12 THE NDi CIMBERLAIO POOL THE OHIO RIVER, 1974-1987 BVPS Transect 1 Species 1974' 1975b 1976c 3977d 197g d g,79 d 1980' 1981' 1982' 198f 1984' 1985 I 1986* 1987' Iongnose gar - -

0.2 - - - - - - - - - - -

Gizzard shad - - - - - -

0.1 -

0.4 0.1 -

0.1 -

0.1 Mooneye - . _ - - - . _ - - - - - -

Rainbow trout - - - - - - - - - -

0.1 - - -

Northern pike - - -

0.1 - - - - - - - - - -

Muskellunge - - - - - - - - - - - - - -

Tiger muskellunge - - -

0.1 0.1 - - - -

0.1 -

0.1 - -

Goldfish - - - - - - - - - - - - -

Carp p

0.8 1.2 0.1 < 0.1 Goldfish x Carp 0.4 0.6 -

0.4 - 0.8 0.2 0.8 0.4 0.4 g hybrid - - - - - -

a Elver carpsucker - - - n g

0.1 - -

0.1 -

Quillback - -

0.1 0.2 - - -

0.1 0.1 - - - - -

White sucker -

0.3 -

0.2 0.2 g

Black redhorse - - - - - - - - - - -

gilver redhorse - - -

< 0.1 0.1 g gM 0.1 - - - - -

y Golden redhorse - - - - - - -

0.1 0.1 4 t1 0.1 m Shorthead redhorse medhorse so.

0.1 - - -

yy Og Eleck bullhead - - - - - - - - - - - - - -

Brown bullhead 0.4 - - -

0.1 - - - - - - - - - O Yellow bullhead - - - - - - - - -

0.1 - - - -

White catfish - - -

p Channel catfish -

0.8 -

0.7 0.7 0.2 0.2 0.2 0.4 0.2 -

0.4 0.6 0.4 Flathead catfish - - - - - - - - - - -

White bass - - - - - -

0.1 %

g 0.2 - -

Rock bass -

0.3 -

0.2 0.1 0.2 - - - - - -

0.1 -

Creen sunfish - -

0.1 -

0.1 - - - - - -

n 63 Pumpkinseed - - - - - - - - - -

0.1 - - -

Bluegill - - - - - - - - - - - - - -

Smallmouth bass - - - -

0.1 < 0.1 - - - - - - - -

Largenouth bass - -

0.2 - -

40.1 - -

0.1 0.1 - - - -

Spotted bass -

0.2 0.7 0.1 -

40.1 - -

0.5 1.6 -

1.0 0.4 0.1 White crapple - - - -

0.1 - - - -

Black crapple - - -

0.1 - - - - - - - - - -

Yellow perch 0.4 0.6 0.5 0.8 03 0.2 - - - - - -

Walleye 0.1 0.2 -

0.3 0.3 0.3 0.2 -

0.1 0.4 0.5 - - -

0.1 Sauger - - - -

0.2 -

0.1 0.2 0.1 - -

0.3 -

Freshwater drum - - - - - - -' -

0.2 0.2 0.1 - - -

Total 1.8 3.4 2.2 3.2 2.9 0.8-1.3 0.4 0.8 2.4 4.2 0.6 2.7 2.0 1.5 "MAY, SEP, NOV dMAY-SEP, NOV AUG, SEP, NOV *MAY, JUL, SEP, NOV C E MAY-SEP MAY, JUL, SEP, DEC

TABLE V-E-6 (Continued)

Transect 2A, 28, 3 i Species 1974* 1975b 1976C 19770 1978d 1979 d 1980' 1981' 1982* 1983' 1984' 1985 f 1986' 1987*

Longnose gar - - - - - - - -

< 0.1 'O.1 -

< 0.1 ' O .1

0.1 Cixtard shad 0.2 0.1 -

0.1 -

<0.1 -

< 0.1 0.7 0.1 - 0.4 0.8 0.1 Mooneye - - - - - - - - - - - - < 0.1 -

Rainbow trout - - - - - - - - - - - - - -

Isorthern pike - - -

0.1 < 0.1 -

< 0.1 < 0.1 < 0.1 < 0.1 < 0.1 - - -

make11unge - - - -

< 0.1 - - -

( 0.1 0.1 -

< 0.1 0.2 -

Tiger muskellunge - - - -

< 0.1 -

< 0.1 - -

0.1 -

< 0.1 - -

Goldfish - -

< 0.1 0.1 - -

< 0.1 - - - - - - -

Carp 0.9 0.3 0.2 0.6 0.3 0.3 0.2 0.3 0.9 0.9 0.3 0.5 1.0 0.4 Coldfish x Carp hybrid -

0.1 -

0.1 - - - - - - - - - -

Eirer carpsucker - - - - - - - - - - -

< 0.1 0.1 0.1 P Qu111back - -

< 0.1 0.2 0.1 < 0.1 < 0.1 -

< 0.1 0.2 -

0.1 - -

E white sucker 0.1 - -

+ 0.1 -

< 0.1 < 0.1 - -

0.1 < 0.1 -

< 0.1 -

9 Clack redhorse - - - < 0.1 0.1 < 0.1 - - - - - - - -

g Silver redhorse - - - - - < 0.1 - -

< 0.1

< 0.1 0.2

< 0.1 0.1 - -

g Golden redhorse - - - - - - - - -

0.2 0.1 0.2 g Shorthead redhorse - - - - - - - -

< 0.1 '

O.1 0.1 - - s o.1 fg Redhorse sp. - - - - - - - - -

< 0.1 -

< 0.1 # 0.1 -

g Clack bullhead -

0.1 - - - - - - - - - - - -

' y N Brown bullhead 0.2 -

<0.1 < 0.1 - - - - - - - - - - t*

l Y2110w bullhead 0.1 - - - - - - - -

' 0.1 - - - -

g E.

White catfish - -

< 0.1 - - - - - - - - - - -

g Channel catfish 0.3 1.3 0.4 1.0 0.4 0.5 0.4 0.6 0.7 0.5 0.3 0.8 1.1 0.6 F1sthead catfish - - - - - - - -

< 0.1 < 0.1 < 0.1 < 0.1 0.1 -

white bass - - - - - - - - -

0.1 - -

< 0.1 0.1 -

Kock bass -

0.1 -

< 0.1 < 0.1 < 0.1 - -

<0.1 0.1 < 0.1 0.2 < 0.1 0.2 Green sunfish - - -

0.1 - - - <0.1 - - - - - -

Pumpkinseed - - -

0.1 - - - - - - -

< 0.1 - -

N Eluegill - - -

0.1 - - - - - < 0.1 < 0.1 - - -

3 Smallmouth bass - -

40.1 - - - - - - - - -

< 0.1 < 0.1 :p Largemouth bass 0.2 0.1 0.1 < 0.1 < 0.1 - - -

<0.1 '

- 0.1 - - - - d j

Spotted bass - -

0.2 0.1 s o.1 / 0.1 0.1 < 0.1 0.3 1.8 0.2 0.5 0.1 0.7 White crapple - -

< 0.1 <0.1 - 0.1 0.1 -

0.1 0.2 - 0.2 -

0.1 Clack crapple - -

< 0.1 0.1 -

< 0.1 - - - 0.1 < 0.1 - -

0.1

< 0.1 < 0.1 < 0.1 Yallow perch -

0.7 0.5 0.7 0.1 0.1 - -

O.1 .- -

I walleye 0.2 0.2 0.1 0.2 0.1 < 0.1 0.2 0.1 0.7 0.1 0.1 0.1 < 0.1 -

54pjer -

0.1 -

< 0.1 0.2 0.3 < 0.1 0.2 0.3 0.5 0.4 0.2 0.3 0.2 Freshwater drum - - - - - - -

0.1 0.3 0.2 - -

< 0.1 -

Total 2.2 3.1 1.5-2.2 3.6-4.3 1.3-1.9 1.3-1.9 1.2-1.6 1.5 4.4 5.2 i. . 3.3-4.0 3.8-4.8 2.8-3.1 "MAY. SEP, NOV d MAY-SEP, NOV bg ggp, y eMAY, & SEP, NOV C E MAY-SEP MAY, JUL, SEP, DSC

DUQUESNE LIGIC COMPANY 1987 ANNUAL DIVIRONMENTAL REPORT 1 (Control Transect) and the averages of Transects 2A, 2B, and 3 (Non-Control Transects) are tabulated separately. These data indicate that new species are continuing to inhabit the study area and that, in gen-eral, the water quality of the Ohio River has steadily improved.

Summary and Conclusions The fish community of the Ohio River in the vicinity of BVPS has been sampled f rom 1970 to present, using several types of gear s electrofish-ing, gill netting, and periodically, minnow traps and seines. The results of these fish surveys show normal community structure based on species composition and relative abundance. In all the surveys since 1970, forage species (minnows and shiners) were collected in the highest numbers. This indicates a normal fish community, since game species (predators) rely on this forage base for their survival. Variations in total annual catch are attributable primarily to fluctuations in the population size of the forage species. Forage species with high repro-ductive potentials frequently respond to changes in natural environmental factors (competition, food availability, cover, and water quality) with large changes in population size. These fluctuations are naturally occurring and take place in the vicinity of BVPS.

Although variation in total catch has occurred, species composition has remained fairly stable. Since the initiation of sta3ies in 1970, forage fish of the family Cyprinidae have dominated the catches. Emerald shiners, gizzard shad, sand shiners and bluntnose minnows have consis-tently been a:nong the most numerous fish, although the latter two species may have declined in recent years. Carp, channel catfish, smallmouth and spotted bass, yellow perch, and walleye have all remained common species.

Since 1978, sauger have become a common game species to this area.

Differences in the 1987 electrofishing and gill net catches, between the Control and Non-Control Transects were similar to previous years (both operational and pre-operational) and were probably caused by habitat preferences of individual species. This habitat preference is probably 78

DUQUESNE LIGiff COMPANY 1987 ANNUAL ENVIRO MENTAL REPORT the most influential factor that affects where the different species of fish are collected and in what relative abundance.

Data collected from 1970 through 1987 indicate that fish in the vicinity of the power plant have not been adversely affected by BVPS operation.

4 t

l r

79

DUQUESNE LIGiff COMPANY 1987 ANNUAL ENVIRONMENTAL REPORT F. ICHTHYOPLANKTON Objective Ichthyoplankton sagling was performed in order to monitor the extent fishes utilize the back channel of Phillis Island as spawning and nursery grounds.

Methods The 1987 program had five day surveys (21 April,19 May,19 June,14 July and 10 August) and two night surveys (20 May, and 15 July) conducted during the spring and summer, which is the primary spawning season for most resident fish species. One surf ace and one bottom collection were taken at Transect 2B (back channel of Phillis Island) during each survey (Figure V-F-1) . Tows were made in a zig-zag fashion across the channel '

utilizing a conical 505 micron mesh plankton net with a 0.5 m mouth diameter. A General Oceanics Model 2030 digital flowmeter, mounted centrically in the net mouth, was used to determine the volume of water filtered. Samples were preserved in the field using 54 buffered formalin containing rose bengal dye.

In the laboratory, ichthyoplankton was sorted from the sample and enu-merated. Each specimen was identified as to i ts stage of development (egg, yolk-sac larvae, early larvae, juvenile, or adult) and to the low-est possible taxon. Densities of ichthyoplankton (numbers /100 m3) were calculated for each sample using flowmeter data.

Results A total of 38 eggs, 255 larvae, and 9 adults were collected in 1987 from 1,907.2 m 3 of water sampled (Table V-F-1) . Ten taxa representing six families were identified. Shiners (Notropis spp.) accounted for 34.3% of the total catch. Gizzard shad (Dorosoma cepedianum) accounted for 25.4%. Freshwater drum eggs (Aplodinotus grunniens) represented 84.2% of the eggs collected in 1987. All adult fish (emerald shiners) were collected at night from the surface and bottom. For 1987, the night collections produced a total density of 20.36 individuals per 100 m3 compared to those from day collections which were 14.27 individuals per 80

w esoa o asco sono se -

r=====

(e) '

ri r

'*** ee.

,i ,! ' .,,

, ,. ".;i .

1

, ,. t ,&

s;' l

f. - {%.{ . ', ' ' .,, .2' Uni, 1

[ *. . .

f h e,i+g e

%'S , -

m

.w , , ., a

- :, u 4

. ,y 4. .' . .1 i ' . ' q'f[-$..p g ae = men.

't , y ;.-l ['y n N ** %,,,..

,[ U l . , hg ,,,,

O k, BRUCE hc

......,ij ., . t

,t,,' ,se O

go MANSFIELD PLANT N s- Q ;w.' , 1ji .

~

ra N

. v

~ ,

s.<3 .

.......,. g

./.

y g5

- k o .- s . 8.. . 1*

A5 Q

- , ,. , n loi, e' g5 LEGEND i:

ff 4(

SYMIOLS hBi a 4my A SURFACE 'IUWS 8

D1 DEAVER VALLEY DisagApag o/,Jr.an.

D2 INDUSTRIAL DISCitARGE (* 'd**8 i n tiy a DorI"IVM TOWS O AID '!O NAVICATION I4 db8 '

l TRANSMISSION LINE s' BEAVER vA1.r.Ey -

g l es .c s ...

STATION FIGURE V-F-1 ICIITIIYOPLANKTON SAMPLING STATIONS BVPS

TABLE V-F-1 NUMBER AND DENSITY OF FISH EGGS, LARVAE, JUVENILES, AND ADULTS 3

(Number /100 m ) COLLECTED WITH A 0.5 m PLANKTON NEF IN THE OHIO RIVER BACK CHANNEL OF PHILLIS ISLAND (STATION 28)

NEAR BVPS, 1987 Depth of Collection Date Surface Bottom Total Collection and April 21 Dy Night Dag Night Taxa Density Vol. water filtered (m 3) 174.7 121.4 296.1 Number eggs collected 0 0 0 g Number larvae collected 0 0 0 g Number juveniles collected 0 0 0 "

Number adults collected 0 0 0 gO Density (number collected)

Eggs 0 0 Larvae 0 0 0

0

@h

~

Total Density (number collected) 0 0 0 hp May 19/20 ga 3

Vol. water filtered (m ) 121.6 126.6 157.2 87.9 493.3 5 Number eggs collected Number larvae collected 1

6 6

46 0

8 11 18 gy 2 62 4 Number juveniles collected 0 0 0 0 0 Number adults collected 0 0 0 0 0 Density (number collected) h d

Eggs Aplodinotus grunniens 0 4.74(6) 0 7.96(7) 2.64 (13)

Unidentified Egg 0.82(1) 0 0 4.55( O 1.01(5)

Larvae Dorosoma cepedianum (YL) 3.29(4) 20.54(26) 1.27(2) 1.14(1) 6.69(33)

Cyprinus carpio (YL) 3.16(4) 0.81(4)

Cyprinus carpio (EL) 7.11(9) 2.54(4) 2.64(13)

Notropis spp. (EL) 1.58(2) O.41(2)

Morone chrysops (EL) 1.64(2) 3.16(4) 1.14(1) 1.42(7)

Etheostoma spp. (EL) O.64(1) 0.20(1)

Stizostedion spp. (EL) 0.64(1) 0.20(1)

Aplodinotus qrunnlens (YL) 0.79(1) 0.20(1)

Total Density (number collected) 5.76(7) 41.07(52) 5.09(8) 14.79(13) 16.22(80)

TABLE V-F-1 (Continued)

Depth of Collection Date Surface Bottom Total Collection and June 19 Day Night Day Night Taxa Density Vol. water filtered (m )3 122.7 109.7 232.4 Number eggs collected 0 13 13 Number larvae collected 50 30 80 Number juveniles collected 0 0 0 Number adults collected 0 0 0 Density (number collected)

Eggs q Aplodinotus grunniens 0 10.94(12) 5.16(12)

Unidentified eggs 0 0.91(1) 0.43(1)

Larvae g Dorosoma cepedianum (YL) 1.63(2) 0.86(2) z

, Dorosoma cepedianum (EL) 25.26(31) 2.73(3) 14.63(34)

W Cyprinus carpio (EL) 4.56(5) 2.15(5) w Pimephales spp. (EL) 10.59(13) 2.73(3) -6.88(16) 8h Pimephales notatus (LL) 1.82(2) 0.86(2) o Pomoxis spp. (EL) 3.26(4) 0.91(1) 2.15(5) g Aplodinotus grunniens (YL) 7.29(8) 3.44(8) g 3ii Aplodinotus grunniens (EL) 7.29(8) 3.44(8)

Total Density (number collected) 40.75(50) 0 39.20(43) 0 40.02(93) Nh 8

July 14/15 N Vol. water filtered (m )3 125.9 148.2 112.1 143.3 529.5 Number eggs collected 0 3 1 3 7 Number larvae collected 45 14 18 8 85 Number juveniles collected 0 0 0 0 0 Number adults collected 0 3 0 7 10 Density (number collected)

Eggs Aplodinotus grunniens 0 2.02(3) 0.89(1) 2.09(3) 1.32(7)

Larvae Notropis spp. (YL) 0.67(1) O.19(1)

Notropis spp. (EL) 35.74(45) 7.42(11) 15.17 (17) 5.58(8) 15.30(81)

Pimephales spp. (EL) O.67(1) 0.19(1)

Aplodinotus grunniens (YL) 0.67(1) 0.89(1) 0.38 (2)

TABLE V-F-1 (Continued)

Depth of Collection Date Surface Bottom Total Collection and July 14/15 Dy Night Day Night Taxa Density Adults Notropis atherinoides 2.02(3) 4.88(7) 1.89(10)

Tota 1 Density (number collected) 35.74(45) 13.50(20) 16.95(19) 12.56(18) 19.26(102)

August 10 Vol. water filtered (m3) 174.4 181.5 355.9 h Number eggs collected 0 0 0 w Number larvae collected 28 0 0 o Number juveniles collected 0 0 0 8 Number adults collected 0 0 0 g h.

Densities (number collected) g

, Eggs 0 0 0 e Larvae g M

Dorosoma cepedianum (EL) 4.59(8) 0 2.25(8)

Notropis spp. (EL) 11.47(20) 0 h

5.62(20)

Total Density (number collected) 16.06(28) 0 7.87(28)

Yearly Totals 5 R

Vol. water filtered (m 3) 719.3 274.8 681.9 231.2 1,907.2 8 Number eggs collected 1 9 14 14 38 E Number larvae collected 129 60 56 10 255 Number juveniles collected 0 0 0 0 0 Number adults collected 0 3 0 7 10 Densities (number collected)

Eggs Aplodinotus grunniens 0 3.28(9) 1.91(13) 4.33(10) 1.68(32)

Unidentified egg 0.14 (1) 0 0.15(1) 1.73(4) 0.31(6)

Larvae Dorosoma cepedianum (YL) 0.83(6) 9.46(26) 0.29(2) 0.43(1) 1.84(35)

Dorosoma cepedianum (EL) 5.42(39) 0 0.44(3) 0 2.20(42) l Cyprinus carpio (YL) 0 1.46(4) 0 0 0.21(4)

Cyprinus carpio (EL) 0 3.13(9) 1.32(9) l 0 0.94(18)

Notropis spp. (YL) 0 0.36(1) 0 0 0.05(1)

t TABLE V-F-1 l

1 (Continued)

Depth of Collection Date Surface Bottom Total Collection and Day Night Day Night Taxa Density Notropis spp. (EL) 9.04(65) 4.73(13) 2.49(17) 3.46(8) 5.40(103)

Pimephales spp. (EL) 1.81(13) 0.36(1) 0.44(3) 0 0.89(17)

Pimephales notatus (LL) 0 0 0.29(2) 0 0.10(2)

Morone chrysops (EL) 0.28(2) 1.46(4) 0 0.43(1) 0.37(7)

Pomoxis spp. (EL) 0.56(4) 0 0.15(1) 0 0.26(5)

Etheostoma spp. (EL) 0 0 0.15(1) 0 0.05(1)

Stizostedion spp. 0 0 0.15(1) 0 0.05(1) [

Aplodinotus grunniens (YL) 0 0.73(2) 1.32(9) 0 0.58(11)

Aplodinotus grunniens (EL) 0 0 1.17(8) 0 0.42(8)

Adults Notropis atherinoides Total Density (number collected) 0 18.07(130) 1.09(3) 26.20(72) 0 10.27(70) 3.03(7) 13.41(31) 0.52(10) 15.89(303) gg g

m u a Developmental Stages ta Mg YL - Hate m d specimens with yolk and/or oil globules present. b$

EL - Specimens with no yolk ud/or oil globules and with no development of fin rays and/or spiny elements.

LL - Specimens with developed fin rays and/or spring elements and evidence of a fin fold.

fn

L - Specimens with undefinable larval stage due to deterioration. 3g JJ - Specimens with complete fin and pigment development, i.e., immature adult.

3 4

_ ___ ~

DUQUESNE LIGirt COMPANY 1987 ANNUAL ENVIR0!#GNIAL REPORT 100 m3 . Of the day collections' densities, 19 June were most abundant with a total density of 40.02 individuals per 100 m3 (mostly gizzard shad larvae). The most abut Jant densities for the night collections were on 20 May with a total density of 30.30 individuals per 100 m3 (freshwater drum eggs and gizzard shad larvae). No ichthyoplankton were collected in April (Table V-F-1) .

Comparison of Preoperational and Operational Data Species abundance and composition were sinilar to that found in previous years. Shiners, gizzard shad, and freshwater drum dominated the catch and other taxa were represented by only a few individuals. Densities of ichthyoplankton collected in th; backchannel (Station 2B) from 1973-1974, 1976-1987, are presented in Table V-F-2.

Summary and Conclusions Shiners, gizzard shad, and freshwater drum dominated the 1987 ichthyo-plankton catch from the back channel of Phillis Island. Peak densities occurred in June and consisted mostly of early larval stages. No spawning was noted in April. There was a decrease in larvae density after July. No substantial differences were observed in species conposition or spawning activity over previous years.

5 86

DUQUESNE LIGiff COMPANY 1987 ANNUAL ENVIR0ttuDirAL REPORT TABLE V-F-2 3

DENSITY OF IClfIHYOPLANKMN (Number /100m ) COLLECTED IN THE O!!IO RIVER BACK CHANNEL OF PHILLIS ISLAND (STATION 28)

NEAR BVPS, 1973-1974, 1976-1987 Date Density Date' Density Da te Density 1973 1974 1976 12 Apr 0 16 Apr 0 26 Apr 0.70 17 May 3 24 May 0 19 May 0 20 Jun 16.10 13 Jun 6.98 18 Jun 5.99 26 Jul 3.25 26 Jun 9.25 2 Jul 6.63 16 Jul 59.59 15 Jul 3.69 1 Aug 6.85 29 Jul 4.05 1977 1978 1979 14 Apr 0 22 Apr 0 19 Apr 0 11 May 0.90 5 May 0 1 May 0 9 Jun 24.22 20 May 0.98 17 May 0.81 22 Jun 3.44 2 Jun 4.01 7 Jun o.39 7 Jul 3.31 16 Jun 12.15 20 Jun 11.69 20 Jul 28.37 2 Jul 13.32 5 Jul 14.82 1980 1981 1982 23 Apr 0.42 20 Apr 1.10 19 Apr 0 21 May 0.53 12 May 0 18 May 3.77 19 Jun 9.68 17 Jun 26.40 21 Jun 7.54 22 Jul 107.04 22 Jul 17.14 20 Jul 31.66 1983 1984 1985 13 Apr 0 16 Apr 0 18 Apr 0 11 May 0.66 10 May 0 14 May 1.81 14 Jun 4.46 8 Jun 15.46 10 Jun 13.36 12 Jul 44.05 12 Jul 44.23 11 Jul 117.59 1986 1987 ,

18 Apr 0.63 21 Apr 0 13 May" 5.93 19 May a 16.22 19 Jun 34.52 19 Jun 40.02 15 Jula 26.15 14 Jula 19.26 12 Aug 9.89 10 Aug 7.87 a Day and night survey was conducted.

87

DUQUESNE LIGiff COMPANY 1987 ANNUAL ENVIR0lGUENTAL REPORT G. FISH IMPINGD(ENT 4

Objective Impingement surveys were conducted to monitor the quantity of fish, other aquatic organisms and Corbicula iginged on the traveling screens.

Methods The surveys were conducted weekly throughout 1967 for a total of 49 weeks (Table V-A-1) . Except when technical difficulties delayed the start of collections, weekly fish impingement sagling began on Thursday mornings when all operating screens were washed. A collection basket of 0.25 inch P

mesh netting was placed at the end of the screen washwater sluiceway (Figure V-G-1) . On Friday mornings, af ter approximately 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months , each screen was washed individually for 15 minutes (one coglete revolution of the screen) and all aquatic organisms collected. Fish were identified, counted, measured for total length (mm) , and weighed (g). Data were summarized according to operating intake bays (bays that had pumps oper-ating in the 24 hour2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months sampling period) and non-operating intake bays.

Results The BVPS impingement surveys of 1976 through 1987 have resulted in the collection of 36 species of fish representing nine families (Table V-G-1).

A total of 345 fish, representing 13 species were collected in 1987 (Table V-G-2). Gizzard shad were the most numerous fish, comprising 82.6% of the total annual catch, followed by channel catfish (5.2%) ,

bluegill (3.8%), with all other species represented by less than 8 specimens. All fishes ranged in size from 25 mm to 352 mm, with the majority under 100 mm. The total weight of all fishes collected in 1987 was 7.27 kg (16.0 lbs) . Approximately 90.3% of the total weight of fish ,

collected (both alive and dead) was comprised of gizzard shad collected in January. No endangered or threatened species were collected (Commonwealth of Pennsylvania,1985) .

The tegoral distribution of the 1987 impingement catch closely follows the pattern of catches of previous years (1976 to 1986) (Tables V-G-3 and 88

DUQUESNE LIGiff COMPANY 1987 ANNUAL ENVIRONMENTAL REPORT

. . . c .. n e . . . n . . . . , . . .

Ov p .. : . . n..s. t. i* n. la .e t..c...

e ,_ _ g n ,.ea.

7 ,u.n. .co .. n .i 91.

n....,,, . i /: / n 1%.ttL.L

.i n .+n tt tt t ..ls ti ,, ii.n i n...a N' t LF ,_%

'/ -!llll'!.!';il!!!';!:';u

'l~ .- /!!U.i.t.

.. i.n. '.!!Hi :;!!

41; A~ (I , l)][ ,s. ; - .

g"i', - 'edd -

/l> f, IUin'!' !!;'i'.

? !;l -

w

[ ,,

~ ~'

.. . ' l vp I l %. ..

$f t. Ltl SL.? (,v.) iI 4 .'!'m) h y j .

W

'II ,f *'

n n., ii'J(I(' jh'" Juu,fi.w... . 6 enutie. . ni..u. i,,,.,,,,i.. , , , , , , , , , , , , , , ,, ,;,3, . ( . . .

N gg, ;;.;;,;;o lon. n . e, .:..

(Three dimensional: cutaway view) o - -_

1 1 1 ll- -

? ,,,,,,,

d r.,n s

,;g, '

l 'sy..:...a

" ' " " o, o- n..e _... - / -

n/ t<

_ Q[

,c su s

i g

...... ..e.::-

g u n .n i. swr ::.:

. m -

( 7 .?!But 4 T..v t'.s e 1/r Watt

, ..e...,....s.-

..... 11 n y5,*:y- .

*8,"

. ...a

- . . O.-,"9.O.t..;*

e .o t'. se4.3 l

s c ..u (Two dimensional: Side View)

FIGURE V-G-1 INTAKE STRUCTURE BVPS 89

DUQUESNE U GHT COMPANY 1987 ANNUAL ENVIR0l#UENTAL REPORT TABLE V-G-1 FISH COLLECTED DURING THE IMPINGEMENT SURVEYS, 1976-1987 BVPS Family and Scientific Namel Common Name Clupeidae (herrings)

Dorosoma cepedianum Gizzard shad Cyprinidae (minnows and carps)

Cyprinus carpio Common carp Notemigonus crysoleucas Golden shiner Notropis atherinoides Emerald shiner 1[. spilopterus Spotfin shiner

((. stramineus Sand shiner 1[. volucellus Mimic shiner Pimephales notatus Bluntnose minnow Semotilus atromaculatus Creek chub Catostomidae (suckers)

Carpiodes cyprinus Quillback Catostomus commersoni White sucker Moxostoma carinatum River redhorse Ictaluridae (bullhead and catfishes)

Ictalurus catus White catfish I. na talis Yellow bullhead I,. nebulosus Brown bullhead I. punctatus Channel catfish Noturus flavus Stonecat Pylodictis olivaris Flathead catfish Percopsidae (trout-perches)

Percopsis omiscomayeus Trout-perch Cyprinodontidae (killifishes)

Fundulus diaphanus Banded killifish Centrarchidae (sunfishes)

Ambloplites rupestris Rock bass Lepomis cyanellus Green sunfish L. gibbosus Pumpkinseed Ig. macrochirus Bluegill Micropterus dolomieui Smallmouth bass pl. punctulatus Spotted bass gl. salmoides Largemouth bass Pomoxis ynnularis White crappie P,. nigronaculatus Black crappie 90

DUQUESNE LIGiff COMPANY 1987 ANNUAL ENVIRO!90NIAL REPORT TABLE V-G-1 (Continued)

Family and scientific Name l Common Name Percidae (perches)

Etheostoma nigrum Johnny darter E. sonale Banded darter Perca flavenscens Yellow perch Percina caprodes Logperch P,. copelandi Channel darter Stizostedion vitreum vitreum Walleye Scimenidae (drums)

Aplodinotus grunniens Freshwater drum 1

Nomenclature follows Robins et al. (1980) 91

TABLE V-G-2 SUBetARY OF FISH tOLIJCTED IN IMPINGBEENT SURVEYS COeWUCTED FOR ONE 24 NOUR PERIOD PER NEEK DURING 1987 BVPS i OPERATING INTAKE BAYS 1 Isoge-OPERATIBC IWrAKE BAYS 2 Percent Alive Dead Alive Dead Length Frequency Percent Neight Neight Neight Neight Range Taxa Number Occurrence W aition Number (q) Mudwr (g) mr (g) Number (g) (mm)

Gizzard shad 285 37 82.6 1 21 279 6,495 5 53 61-260 Comenon carp 2 4 0.6 2 542 42-352 e amerald shiner 6 6 1.7 5 5 1 1 Sand shiner 1 2 0.3 1 1 27-52 $

63 Brown bullhead 3 4 0.9 1 1 2 2 30-38 Channel catfish 18 27 5.2 6 13 12 15 32-75 Flathead catfish 1 2 0.3 1 10 101 Rock bass 1 2 0.3 1 3 62 Green sunfish 2 4 0.6 1 9 1 8 74-79 N aluegill 13 16 3.8 4 4 9 11 25-66 g w Sunfish sp. 1 2 0.3 1 1 28 e Spotted bass 1 2 0.3 1 36 147 $ 0 Darter op.

Freshwater drum 1

7 2

6 0.3 1 1 79 k 2.0 6 22 1 1 32-95 Unidentifiable 3 4 0.9 2 10 o

1 8 32-180 Total 345 15 591 319 6,572 3 47 8 63 I

2 Intake bays that had pumps operating within the 24 hour2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months sampling period.

Intake bays that had no pumps operating within the 24 hour2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months sampling period.

k

TABLE V-G-3 SupeUUtr OF IMPINGIBENT SURVEY DATA FOR 1987 BVPS River Operating Intake Bays Elevation Date Number of Fish Percent Intake Boys Non-Operatip Intake Intake Bays Operating Water Above Mean Month DS Collected Annual Total Alive Dead Alive Dead A_ B, C D. Temp O F Sea Level (ft.)

January 2 0 0.0 X X 38.8 666.7 9 4 1.2 1 3 X X 37.2 666.2 16 3 0.9 3 X 38.3 X 666.9 23 6 1.7 2 4 X X 36.3 667.5 30 229 66.4 1 228 X X X X 33.0 666.2 February 6 13 5

1 1.4 0.3 5 X X 36.2 667.2 $

20 19 5.5 1

18 1 X

X X

X 36.1 36.0 666.1 665.7 27 3 0.9 3 X X X 39.7 666.2 O March 6 3 0.9 3 8

X X X X 38.9 666.6 13 3 0.9 1 2 X X 41.9 666.7 20 2 0.6 1 2 1 X X X 42.8 665.5 g te 27 1 0.3 1 X X X 49.5 666.1 kt*

w ww April 3 1 10 1 0.3 0.3 1

1 X I X X

X X

45.4 46.5 669.3 672.1

$0k 17 0 0.0 X X X 50.3 667.8 24 o

3 0.9 2 1 X X X 60.5 667.4 May 1 0 0.0 X 57.2 X 666.3 8

15 1

0 0.3 0.0 1

X X X X

X X

58.0 66.0 666.1 665.6 g{

g K

22 1 0.3 1 X X X X 71.3 665.4 O 29 0.3 1 1 I X X X 74.4 665.6 $

June 5 1 0.3 1 X X X X 76.5 665.5 12 0 0.0 X X X X 75.8 665.4 19 0 0.0 X X X 80.3 665.4 26 1 0.3 1 X X X 80.4 665.3

TABLE V-G-3 (Cor.tinued)

River Operating Non-Operatip Intake Boys Intake Elevation Date Number of fish Percent Intake Boys Intake Bays Operating Water Above Mean Month D_ay Collected Annual Total Alive Dead Alive Dead A_ B, C, D Temp FO Sea W el (ft.)

July 3 5 1.4 1 3 1 X X X 75.0 670.5 10 1 0.3 1 X X X X 75.5 666.0 17 3 0.9 3 X X X 76.0 665.6 24 1 0.3 1 X X X 82.5 665.4 31 2 0.6 1 1 X X X X 81.5 665.0 August 7 2 0.6 1 1 X X X 81.0 665.3 14 2 0.6 2 X X X X 79.2 665.5 21 2 0.6 1 1 X X X X 80.8 665.5 e 28 6 1.7 1 5 x X X 75.0 665.4 y 4

September 4 1 0.3 1 X X X X 71.5 665.4 11 1 0.3 1 X X X X 71.0 665.7 18 3 0.9 3 X X X X 71.4 666.2 25 5 1.4 1 4 X X X X 65.0 665.9 g October 2 0 0.0 X X X 63.1 665.7 g e 9 1 0.3 1 X X X 51.9 666.1 a t-e 16 0 0.0 X X X 54.0 665.5 $

23 0 0.0 X X X 54.0 665.7 g 3O I3I - - - - - -

51.3 665.7 November 6 I3I - - - - - -

53.5 665.2 13 I3I - - - - - -

50.0 665.4 y 15 1 0.3 1 1 X X 49.9 665.5 20 0 0.0 X X X 49.2 665.9 %

27 0 0.0 X X X X 47.8 665.7 g 30 December 4 15 4.3 2 13 X X X 45.0 6(7.0 8 11 2 0.6 2 X X X 43.8 667.5 18I8I - - - - - -

40.8 666.5 24 3 0.9 3 I X 40.5 666.8 Total 345 15 319 3 8 1

Intake boys that had pugs operating in the 24 hour2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months sagling period.

I Intake bays that had no pumpe operating in the 24 hour2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months e g ling period.

3 Impingement could no.. be conducted due to diving operations in screenhouse.

4 Impingement could not be conducted due to outage activities.

DUQUESNE LIGirr COMPANY 1987 ANNUAL ENVIRONMENTAL REPORT

~~+-*~~$.~~~ e .... ~e-.e .

.-~ -~~~ ~.

~

- ~~~s N

.P A A T "A**"":"2""2 a A

**I 2

. . .-.*ge. 4 g .

t.il*"**********

- - 2 E' p p,

f4 3 ** -

s - g - 2 g 71; SJ

.E

...e 4

-ac.e-~.

~ ~

~

22 4 ... . -~...,. .g Tr a

2**2 :

E j.

N p:*

cc }A m

H I

W 1 :: d'*2* **

1 33:'"a*A1

2

~

1 * '""****:21 a a

n H

a--

k N

H m'

p

< ~- ; -..-~..--

g

.-~.-~..-~.* - ~

.--.-- -..-. . ~

p.1

.1 Et r

,i

> :J' %

2,'g i

c iji

w a:

o m

8 .1 .1 y 2 22 .eae,~ee~<-. - , la g"oo--.sa-~a. . go. ... -..a ~

W *

1. ".**

li .

"= 3. *

-*- 2 E : t : -1 31 v

W O

87- :

d hi -

81-d 8 Z g ,

O H -

I % +-a.-~~~+-ee ~ - .~- .e-~~enen - - .~~.~~a~~~ee

> zm s

:a- -

~

s : ---

: ---~

H% . a ;; .- a e N > h 1

i2 Z CQ . . ,

A H ' 2* d 21 It ga 3 ::

-.-...-.= *.

3: --~ ~.~-.~.. 3 3: -. ..-.-,es. ,

u2

~ L. .

ao e -

f2

, . J- k2 ..

1* 13' j' g - dfA - d g e A -

A 1 O . . .

a --

ij n;-- : --*4 ;

ji

-- ----::s<- - 1,'

i: -- -- -- a a p m

f. .

a e t s s. tr H "" 8' 2 F-N I.a .I 1.

A =**aa O -

a:*R'*:210:3* -3 -

adas**** 3- -

222 ** :

=~

s - .- 2 3 h 4 e= # H H gj p: 2-

,c . . .s e ** 2 ". 2 ".1

... .a F 2 3. 0

~- ,=.--~.....

. -- - .e 1. 0 .~--a-- ...~-. $ I. .t e ~4-~a. -

D g. *.*.~- * * . g. g. F1 M .t e .1 4 ,1

jr. 1 .:p- :

t

- :a2 g.

1I

.! .".~. ..

.- .3

.1~~....,R~...,

e a

~. .a. n e-e- . , ~e~ . ~ . . - ..-. ,,

j a.

.. -- e as a.

p. .... %.

w5 .

w -$, t* . . .

>~

2.li -

b

. n.

h , ut . , . .

p.

2.- : J. g.. .,1 .- :lg...s1 -- -

.- : :a is 12::~ur.t.::

,1 I ::~ st. ;2: 3 1 .rst a:2:aat:aess 3 m:a tale t:aus l2 ::ta~k

,:a a as s:a:s: 3 -

95

DUQUESNE LIGin COMPANY 1987 ANNUAL ENVIROtt!E!RAL REPORT V-G-4). During each year, generally the largest numbers of fish have been collected in the winter months (December-February) and then the r

catch has gradually decreased until the late summer period when another, :

smaller peak has occurred. '

other c'rganisms collected in the impingement surveys include 244 cray-fish, 237 native clams, and 128 dragonflies (Tables V-G-6 and V-G-8) .

In addition,1,396 Asiatic clams (Corbicula) were collected (Table V-G-7).

Comparison of Impinged and River Fish A conparison of the numbers of fish collected la the river and traveling screens is presented in Table V-G-5. Of the 30 species collected, 10 were observed in both locations, 2 species were collected only in the impingement surveys, while 18 species were taken exclusively in the river. The major difference in species composition between the two types of collections is the absence of large species in the impingement col-lections. Three species of suckers (river carpsucker, shorthead redhorse, golden redP ese) c.no six species of game fish (yellow perch, white and black crappie, smallmouth bass, walleye, and sauger) were collected in the river studies, but were not collected in the impingement surveys. Game fish which were collected on the traveling screens (channel catfish and bluegill) were smaller than individuals of those species collected by river sampling.

Comparison of Operating and Non-Operating Intake Bay Collections of the 345 fish collected during the 1987 impingement studies, 334 (96. 8 %) were collected from operating intake bays and 11 (3.2%) from ron-j operating intake bays (Table V-G-2) . However, due to differences between the number of operating (143) and non-operating (36) screens washed in 1987, the impingement data were computed with catch expressed as fish per 1,000 m2 of screen surface area washed. These results showed 13.1 and

l.7 fish for operating and non-operating screens, respectively. As in l

previous years, the numbers of fish collected in non-operating bays l indicates that fish entrapment, rather than impingement, accounts for '

96

DUQUESNE LIGifT COMPANY 1987 ANNUAL ENVIRONMENTAL REPORT TABLE V-G-5 NUMBER AND PERCENT OF ANNUAL 'IOTAL OF FISH COLLECTED IN IMPINGDiENT SURVEYS AND IN THE NDf CUMBERLAND POOL OF THE OHIO RIVER, 1987 BVPS Total Number of Percent of Fish Collected Annual Total Species (a) Impingement River Impingement River Longnose gar 1 0.1 Gizzard shad 285 294 83.8 43.0 Com:en carp 2 32 0.6 4.7 River chub 1 0.1 Emerald shiner 6 174 1.8 25.5 Spottail shiner 26 3.8 Spotfin shiner 15 2.2 Sand shiner 1 14 0.3 2.0 Mimic shiner 2 0.3 Bluntnose minnow 1 0.1 River carpsucker 2 0.3 Northern hog sucker 1 0.1 Black redhorse 1 0.1 Golden redhorse 7 1.0 Shorthead tedhorse 4 0.6 Brown bullhead 3 0.9 Channel catfish 18 20 5.3 2.9 Flathead catfish 1 1 0.3 0.1 White bass 2 0.3 Rock bass 1 6 0.3 0.9 Green sunfish 2 0.6 Bluegill 13 3 3.8 0.4 Smallmouth bass 14 2.0 Spotted bass 1 42 0.3 6.1 White crappie 2 0.3 Black crappie 2 0.3 Yellow perch 2 0.3 Sauger 9 1.3 Walleye 1 0.1 Freshwater drum 7 4 2.1 0.6 Total 340 683 (a) Includes only those specimens identified to species or stocked hybrids.

97 n-

DUQUESNE LIGiff CCMPANY ,

1987 ANNUAL ENVIROttGDrfAL REPORT l TABLE V-G-6 SUM 4ARY OF CRAYFISH COLLECTED IN 1MPINGEMDff SURVEYS CONDUCTED FOR ONE 24-HOUR PERIOD PER WEEK,1987 BVPS Number Collected Operating Non-Operating Date Intake Bays Intake Bays Month M Alive Dead Alive Dead January 2 7 2 0 0 9 0 0 0 0 16 1 1 0 0 23 2 5 0 2 30 3 0 0 0 February 6 0 2 0 3 13 1 1 0 0 20 2 0 1 0 27 1 1 0 1 March 6 12 1 0 0 13 0 1 0 0 20 2 0 0 0 27 2 0 0 0 April 3 0 1 1 0 10 6 0' 0 1 17 2 3 0 0 24 0 0 0 0 May 1 0 1 0 0 8 0 1 0 1 15 0 0 0 0 22 0 3 0 0 29 0 4 0 0 June 5 5 3 0 0 12 3 2 0 0 19 5 4 3 2 26 4 6 1 2 July 3 14 5 1 3 10 6 12 0 0 17 2 1 0 0 24 2 4 0 0 31 0 1 0 0 98

DUQUESNE LIGiff COMPANY -

1987 ANNUAL ENVIRoleUDfrAL REPORT TABLE V-G-6 (Continued)

Number Collected Operating Non-Operating Date Intake Bays Intake Bays Month DE Alive Dead Alive Dead August 7 6 4 1 0 14 7 1 0 0 21 2 3 0 0 28 1 1 1 0 September 4 2 3 0 0 11 3 1 0 0 18 2 6 0 0 25 1 5 0 0 October 2 2 3 0 1 9 1 2 1 0 16 2 0 0 0 23 0 0 0 0 30(a) - -

November 6 (a) - -

13(a) - - -

15 0 0 0 1 20 0 1 0 0 27 1 0 0 0 December 4 1 0 0 0 11 4 0 0 0 18(b) - -

24 1 0 4 0 Total 118 95 14 17

(*) Impingement could not be conducted due to diving operations in screenhouse.

(b) Impingement could not be conducted due to outage activities.

99

DUQUESNE LIGiff COMPANY 1987 ANNUAL ENVIRONGINTAL REPORT TABLE V-G-7 SUM 4ARY OF Corbicula COLLECTED DURING IMPINGEMENT SURVEYS FOR ONE 24-HOUR PERIOD PER WEEK,1987 BVPS Number Collected Operating Non-Operating Da te Intake Bays Intake Bays Month- Day Alive Dead Alive Dead January 2 0 1 0 0 9 0 0 0 1 16 0 0 0 0 23 0 0 0 0 30 0 0 0 0 February 6 0 0 0 0 13 0 0 0 0 20 0 1 0 0 27 0 1 0 0 March 6 0 1 0 0 13 0 0 0 1 20 0 0 1 2 27 0 1 0 1 April 3 0 0 0 1 10 0 1 0 0 17 1 0 0 0 24 0 0 0 0 May 1 0 2 0 1 8 0 3 0 1 15 0 1 0 0 22 3 11 0 0 29 3 2 0 0 June 5 25 21 0 0 12 27 20 0 0 19 33 33 8 7 26 53 38 8 5 July 3 13 16 7 5 10 32 27 0 0 17 8 12 5 6 24 7 10 9 1 31 32 37 0 0 100

DUQUESNE LIGirr COMPANY 1987 ANNUAL ENVIRott4 ENTAL REPORT TABLE V-G-7 l (Continued)

Humber Collected Operating Non-Operating Date Intake Bays Intake Bays Month Day Alive Dead Alive Dead August 7 45 43 10 15 14 27 23 0 0 21 51 36 0 0 28 45 46 7 21 September 4 48 77 0 0 11 38 52 0 0 18 12 52 0 0 25 26 29 0 0 October 2 10 30 0 3 9 12 19 0 1 16 6 2 0 0 23 2 5 0 0 30(a) - - - -

November 7 (a) - - - - i 13(a) - - - -

15 5 16 4 16 20 3 4 0 2 27 0 4 0 0 December 4 0 0 1 0

, 11 0 1 0 0 18(b) - - - -

24 0 1 0 0 TOTAL 567 679 60 90 .

(a) Impingement could not be conducted due to diving operations in screenhouse.

(b) Impingement could not be conducted due to outage activities.

[

t i

l

! t 101

1 DUQUESNE LIGirr CCMPANY 1987 ANNUAL ENVIROIMENTAL REPORT TABLE V-G-8

SUMMARY

OF MOLLUSKS (OTHER THAN Corbicula) AND DRAGONFLIES COLLECTED IN IMPINGEMENT SURVEYS CONDUCTED FOR ONE 24-HOUR PERIOD PER WEEK, 1987 ,

BVPS Date Number of Organistas in all Bays Month Day Mollusks (C) Dragonflies January 2 0 0 9 0 0 16 0 0 .

23 0 1 30 0 0 February 6 0 0 13 0 0 20 0 0 27 0 0 March 6 0 0 13 0 0 20 0 0 27 0 0 April 3 0 0 10 1 0 17 0 1 24 2 1 May 1 5 4 8 2 1 15 1 0 22 7 2 29 10 6 June 5 15 7 12 9 4 19 9 3 26 11 9 July 3 3 17 10 15 15 17 15 7 24 22 2 31 1 4 102

DUQUESNE LIGirt COMPANY 1987 ANNUAL ENVIRottGDrfAL REPORT TABLE V-G-8 (Continued)

Date Number of Organisms in all Bays Month g Mollusk s (c) Dragonflies August 7 2 6 14 1 5 21 2 2 28 4 2 September 4 4 4 11 12 7 18 9 2 25 26 5 October 2 10 4 9 18 3 16 3 0 23 4 0 30(a) - -

November 6 (a) - -

13(a) - -

15 2 1 20 6 0 27 0 1 December 4 5 2 11 0 0 18(b) - -

24 1 0 Total 237 128 I"I Impingement could not be conducted due to diving operations in screenhouse.

(b) Impingement could not be conducted due to outage activities.

IC) Other than Corbicula.

103

DUQUESNE LIGiff COMPANY 1987 ANNUAL ENVIROt#UDrrAL REPORT some of the catch. Entrapment occurred when fish were lif ted out of the water on the frame plates as the traveling screen rotates. Alterna-tively, impingement occurred when fish were forced against the screen due to velocities created by the circulating water pumps.

Of the 244 crayfish collected in the 1987 impingement studies, 213 (87.3%) were collected from operating bays and 31 (12.7%) were collected from non-operating bays (Table V-G-6) . Adjusting these data for screen surface area washed (crayfish per 1,000 m2 ) the results show 8.4 and 4.8 crayfish for operating and non-operating screens, respectively.

Corbicula collected in the 1987 studies included 1,246 (89.3%) in the operating bays and 150 (10.7%) in the non-operating bays (Table V-G-7) .

Again, adjusting these data for the screen surface area washed (Corbicula per 1,000 m2 ) the results show 48.9 and 23.4 Corbicula for operating and non-operating screens, respectively.

Sununary and Conclusions The results of the 1987 impingement surveys indicate that withdrawal of river water at the BVPS intake for cooling purposes has little or no effect on the fish populations. Three hundred and forty-five (345) fishes were collected, which is the fourth highest collected since initial operation of BVPS in 1976. Gizzard shad were the nost numerous fish, comprising 82.6% of the total annual catch. The total weight of all fishes collected in 1987 was 7.27 kg (16.0 lbs) . Of the 345 fishes collected, 18 (5.2%) were alive and returned via the discharge pipe to l the Ohio River.

I i

i I

n 104 i

r - _ - _ _ _ , . -

DUQUESNE LIGHT COMPANY

'1987 ANNUAL ENVIR0lMENTAL REPORT H. PLANKTON ENTRAI!MEffr

1. Ichthyoplankton.

Objectives The lehthyoplankton entrainment studies are designed to determine the species composition, relative abundance, and distribution of ichthyo-plankton found in proximity to the BVPS intake structure.

Methods Previous studies have demonstrated that species composition and relative

abundance of ichthyoplankton samples collected in front of the intake structure were very similar to those ichthyoplankton entrainment samples taken at BVPS (DLCo 1976, 1977, 1978, and 1979). Based on these results, a modified sampling program was utilized from 1980 through the current sanpling season which sampled the Ohio River along a transect adjacent to the BVPS intake structure (Figure V-F-1). Samples wre collected monthly, from April through August, during daylight hours along a five station transect. A night collection was made in May and July. Surface tows were made at Stations 1, 3, and 5 and bottom tows were taken at Station 2 and 4 utilizing a 505 micron mesh plankton not with a 0.5 m l diameter mouth. Sample volumes were measured by a General Oceanics Model 2030 digital flowmeter mounted centrically in the mouth of the net.

I Samples were preserved upon collection in 54 buffered formalin containing rose bengal dye.

1 In the laboratory, eggs, larvae, juveniles, and adults were sorted from the samples, identified to the lowest possible taxon and stage of devel-opment, and enumerated. Densities of ichthyoplankton (number /100m3 ) were calculated using appropriate flowmeter data.

i Results A total of 184 eggs,1,511 larvae, 8 juveniles, and 6 adults representing seventeen taxa and eight familes were collected from 4192.8 m3 of water filtered during sanpling along the river entrainment transects (Table l

j V-H-1) . Shiners, freshwater drum, gizzard shad, and carp were the most j common taxa, representing 55.4%, 13.54, 11.54, and 10.4% of the total i

105

TABLE V-E-1 NtBGER AND DESSITY Or FISR BGGS, IJJtVAE, JUVENI125, AE ADULTS (Number /100 m ) COLLECTED WITH A 0.5 o PLANK 70N NET AT THE ENTRAIISENT RIVER TRANSECT IN THE 0E10 RIVER NEAR BVPS,1987

, Total Collected and Date Station 1 Station 2 Station 3 Station 4 Station 5 Tama Density g Night g Night g Night M Mi g g Night 21 Apr 11 Vol. water filtered (m )3 83.0 121.4 172.1 127.9 111.6 616.0 hatner eggs collected 0 0 0 0 0 0 Nunt>er larvae collected 0 0 0 0 0 0 hatner juveniles collected 0 0 0 0 0 0 Nustier adults collected 0 0 0 0 0 0 Density (mmber collected)

Eggs Lervse 0

0 0

0 g

en Total Station Density 4 (nust>er collected) 0 0 0 0 0 0 19/20 May Cg 901. water filtered (m ) 3 125.2 104.0 bM haber eggs collected 92.6 0

81.7 8 1 6 122.4 7

115.7 14 143.5 1

153.5 17 109.1 111.5 6

1,159.2 63 g

3 E 5

m hat >cr larvae collected 10 44 31 7 34 32 30 16 3 129 336 $[

haber juveniles collected 0 0

0 0

0 0 0

0 0 go Nueer adults collected Density (nustier collected) 3 0 3 $

Eggs Cyprinus carpio 0 0 0.80(1) 0 0 0 0 1.30(2) 0 0 0.26(3)

Aplodinotus grunniens 0 0

0.57(7) 0 4.81(5) 5.72(7) 6.91(8) 0.70(1) 2.61(4) 0 4.48(5) 3.19(37) $

Unidentified 1.22(1) 0 0.96(1) 0 5.19(6) 0 7.17(11) 2.75(3) 0.90(1) 1.96(23)

Larvae N porosome cepedianum (YL)(a) 4.32(4) 6.12(5) 15.10(19) 0.96(1) 24.50(30) 8.64(10) 8.36(12) 1.30(2) 0 0.07(9)

Cyprinus carpio (YL) 0 1.22(1) 0.00(1) 2.88(3) 0.82(1) 5.19(6) 6.97(10) 5.21(8) 0 10.76(12) 7.94(92) 3.62(42)

o Cyprinus corpio (EL) 1.00(1) 24.48(20) 7.19(9) 0 0 10.37(12) 3.48(5) 0 0 d 56.50(63) 9.49(110)

Notenigonus crysoleucas (EL) 0 0 0 0.96(1) 0.82(1) 0 0 0.65(1) 0 1.79(2) 0.4)(5)

Notropis opp. (YL) 0 0 0 0 0 1.73(2) 0 1.30(2) 0 2.69(3) 0.60(7)

Notropis opp. (EL) 0 3.67(3) 0.00(1) 0 0 0 0 0 0 8.97(10) 1.21(14)

Catostomidae (YL) 0 0 0 0 0 0 0 0 0 0.90(1) 0.09(1)

Norone chrysops (YL) 0 0 0 0 0 0 0 0 0 0.90(1) 0.09(1)

Norone chrysops (EL) 3.24(3) 6.12(5) 0 0.96(1) 0 0 C 0 0.92(1) 17.04(19) 2.50(29)

Pomosis opp. (EL) 0 0 0 0 0 0 0.70(1) 0 0 3.59(4) 0.43(5)

Percidae (YL) 0 0 0 0 0 0 0 1.95(3) 0 3.59(4) 0.60(7)

Percidae (EL) 0 0 0 0 0 0 0 0 0 0.90(1) 0.09(1)

Etheostoms opp. (YL) 0 0 0 0 0 0 0.7C (1) 0 0.92(1) 0 0.17(2)

Etheostoma spp. (EL) 1.00(1) 0 0 0 1.63(2) 0 0 0 0.92(1) 0 0.34(4)

Peres flavescens (EL) 0 12.24(10) 0 0 0 1.73(2) 0 0 0 0 1.04(12) stizostedion opp. (YL) 0 0 0.80(1) 0 0 0 0 0 0 0 0.09 (1)

Aplodinotus grunniens (YL) 0 0 0 0.96(1) 0 0 0.70(1) 0 0 0 0.17(2)

Unidentifiable (*L) 1.00(1) 0 0 0 0 0 0 0 0 0 0.09(1)

l TA8LE V-N-1 (Continued)

Total Collected and Date Station 1 Station 2 Station 3 Station 4 Station 5 Tasa Density g Night g Night g Night g Night g Night Adults Notropis otherinoides 0 0 0 0 0 0 0 0.65(1) 0 0 0.C9 (1) st>tropis stramineus 0 0 0 0 0 0 0 0.65(1) 0 0 0.09(1)

Etheostoma nigrum 0 0 0 0 0 0 0 0.65(1) 0 0 0.09(1)

Total Station Density (number collected) 10.80 63.65 25.56 12.50 33.50 39.76 21.60 23.45 5.50 121.08 34.64 (10) (52) (32) (13) (41) (46) (31) (36) (6) (135) (402) 19 Juna vol. water filtered (m )

3 87.9 84.3 112.4 126.0 102.8 513.4 y haber eggs collected 4 0 0 1 1 6 as 27 69 80 280 4 Number larvae collected 73 31 haber juveniles collected 0 0 0 0 0 0 0 Musiber adults collected 0 0 0 0 0 0 Density (russber collected)

Eggs h Aplodinotus grunniens 3.41(3) 0 0 0.79(1) 0.97(1) 0.97(5) y Unidentified 1.14(1) 0 0 0 0 0.19(1) o Larvae 'CO Dorosome cepedianum (EL) 15.93(14) 1.19(1) 40.92(46) 0 14.59(15) 14.80(76) cyprinus carpio (TL) 0 0 0 1.59(2) 0 0.39(2) $

Cyprinus carpio (EL) 0 2.37(2) 0 7.14(9) 0 2.14(11) g Notropie opp. (EL) 67.12(59) 10.68(9) 20.46(23) 2.38 (3) 63.23(65) 30.97(159) g 0 0 0.79(1) 0 0.19(1)

Etheostoms opp. (LL)

Aplodinotus grunniens (YL) 0 0

13.05(11) 0 6.35(8) 0 3.70(19) bg Aplodinotus grunniens (EL) 0 4.74(4) 0 6.35(8) 0 2.34(12)

Total Statloc Density 3 (number collected) 87.60(77) 32.03(27) 61.39(69) 25.40(32) 78.79(81) 55.71(286) $

14/15 July 3

vol water filtered (m ) 110.0 96.2 156.6 94.4 133.1 163.8 150.6 143.1 120.3 114.5 1,282.6 Number egge collected 2 12 4 19 2 40 0 32 0

4 115 h dwr larvae collected 167 58 55 5 19 12 39 19 428 32 834 haber juveniles collected 0 0 0 1 0 1 0 1 0 0 3 Nud>er adults collected 0 3 0 0 0 0 0 0 0 0 3 Density (nusber collected)

Eggs Aplodinotus grunniens 1.82(2) 12.47(12) 0.64 (1) 13.77(13) 1.50(2) 23.81(39) 0 19.57(28) 0 3.49(4) 7.87(101)

Unidentified 0 0 1.92(3) 6.36(6) 0 0.61(1) 0 2.80(4) 0 0 1.09(14)

Larvae Dorosoms espedienue (EL) 0.91(1) 1.04(1) 0 0 0.75(1) 0 0 0.70(1) 11.64(14) 0 1.40(18)

Cyprinus carpio (EL) 0 1.04(1) 0.64 (1) 0 0 0.61(1) 0 0 0 4.37(5) 0.62(8)

Notropis opp. (TL) 0 0 8.30(13) 0 0 0 4.65(7) 4.89(7) 0 0 2.11(27)

~ ..

TASLE V-N-1 (Continued)

Total Date Collected and Station 1 Station 2 Station 3 Station 4 Station 5 Tasa Density Day Night Day, Night g Night Day Night g Night Notropis a, .. (EL) 150.91 54.05 5.11 1.06 12.02 3.66 3.98 0 339.15 20.96 53.56 (166) (52) (8) (1) (16) (6) (6) (408) (24) (687)

Pimephales spp. (EL) 0 0 0 0 0 1.22(2) 0 0 0 0 0.16(2)

Ispomis spp. (EL) 0 0 0 0 0 0 0 0 1.66(2) 0 0

0.16(2) frevis spp. (EL) 1.04 (1) 0 2.12(2) 0.75(1) 1. 22 (2) 0 0 0 1.75(2) 0.62(8)

Etheostone opp. (EL) 0 1.04(1) 0 0 0 0 0 0 0 0 0.08(1)

Aplodinotus grunniens(YL) 0 1.04 (1) 16.60(26) 2.12(2) 0.75(1) 0 9.96(15) 4.89(7) 0 0.87(1) 4.13(53)

Unidentifiable (*L) 0 1.04(1) 4.47(7) 0 0 0.61(1) 7.30(11) 2.80(4) 3.32(4) 0 2.18(28)

Jaren11es Dorosome cwpedianum (JJ) 0 0 0 1.06(1) 0 0 0 0 0 0 0.05(1) 0 Masostoma spp. (JJ)

Ispomis spp. (JJ) 0 0

0 0

0.61(1) 0 0

0.70(1) 0 0

0 0

0 0.05(1) $

en Adult 0.08(1)

Notropis otherinoides 0 3.12(3) 0 0 0 0 0 0 0 0 0.23(3) @

Total Station Density y

(number collected) 153.64 75.88 37.68 26.48 15.78 32.36 25.90 36.34 355.78 31.44 74.46 t* (s (169) (73) (59) (25) (21) (53) (39) (52) (428) (36) (955) N 8

cc 10 Acqust wC O

3 vbl. water filtered (m ) 133.7 148.6 146.8 87.3 105.2 621.6 h Number egge collected 0 0 0 0 0 0 g.3 Nueer larvae collected 37 1 9 4 10 61 Number juveniles collected 3 0 0 2 0 5 Q

Ej Number adults collected 0 0 0 0 0 0 g Density (number collected)

Eggs 0 0 0 0 0 0 gQ larvae Doronoms copedianum (EL) 5.98(8) 0 b

0.68(1) 0 0.95(1) 1,.6 A (10) $

cyprinus carpio (EL) 0.75(1) 0 0 1.15(1) 0 0.32(2)

Notropis opp. (EL) 19.45(26) 0 4.77(7) 2.29(2) 8.56(9) 7.08 (44) pomosis opp. (EL) 0.75(1) 0 0.68(1) 0 0 0.32(2)

Aplodinotus grunniens (EL) 0 0 0 1.15(1) 0 Aplodinotus grunniens (Lt.) 0 0.16(1) 0.67(1) 0 0 0 0.16(1)

Unidentifiable (*L) 0.75(1) 0 0 0 0 0.16(1)

Juveniles m>tropis otherinoides(JJ) 2.24(3) 0 0 0 0 0.48(3)

Ictalurus punctatus(JJ) 0 0 0 2.29(2) 0 0.32(2)

Total Station Density (rsaeer collected) 29.92(40) 0.67(1) 6.13(9) 6.87(6) 9.51(10) 10.62(66)

TAALE V-5-1 (Continued)

Toto 1 Collected an$

Date Station 1 Station 2 Station 3 Station 4 Station 5 Taxa Density g Night g Night g Night g Night g Night Yearly Total Vol. water filtered (m )3 507.2 177.9 636.1 198.4 646.8 279.5 635.3 296.6 549.0 226.0 4,192.8 Number eggs collected 6 20 5 25 9 54 2 49 4 10 184 Nueer larvae collected 267 102 114 12 131 44 104 35 521 161 1,511 Number juveniles collected 3 0 0 1 0 1 2 1 0 0 s Nuntier adults collected 0 3 0 0 0 0 0 3 0 0 6 Density (number collected)

Eggs CYprinus carpio 0 0 0.16(1) 0 0 0 0 0.67(2) 0 0 0.07(3)

Aplodinotus grunniens 0.99(5) 10.68(19) 0.16(1) 9.07(18) 1.31(9) 16.82(47) 0.32(2) 10.79(32) 0.1s(1) 3.90 (9) 3.41(143) g Unidentified 0.20(1) 0.56(1) 0.47(3) 3.53(7) 0 2.50(7) 0 5.06(15) 0.55(3) 0.44(1) 0.91(38) e Larvaa **

Dorosome wpedianum trL) 0.79(4) 2.81(5) 2.99(19) 0.50(1) 4.37(30) 3.58(10) 1.09(12) 0.67(2) 0 3.9e(9) 2.19(92)

Dorosome cepedianus (EL) 4.53(23) 0.54(1) 0.16(1) 0 6.99(48) 0 0 0.34 (1) 5.46(30) 0 2.44(104)

Cyprinus carpio (YL) 0 0.56(1) 0.16(1) 1.51(3) 0.15(1) 2.15(6) 1.89(12) 2.70(8) 0 5.31(12) 1.05(44)

Cyprinus carpio (EL) 0.39(2) 11.90(21) 1.89(12) 0 0 4.65(13) 2.36(15) 0 0 30.09(68) setemigonus cryeoleuces(EL) 0 0 0.50(1) 0.15(1) 0 0 0.34(1) 0 0.04(2) 3.12(131) 0.12(5) g Nottnpis opp, (YL) 0 0 2.04(13) 0 0 0.72(2) 1.10(7) 3.03(9) 0 1.33(3) 0.31(34)

Notropis opp. (EL) 49.49(251) 30.92(55) 2.83(18) 0.50(1) 6.70(46) 2.15(6) 1.73(11) 0 87.00(442)15.04(34) 21.56(904) t'*

Pimephales opp. (EL) 0 0 0 0 0 0.72(2) 0 0 0 0 0.05(2) M Catostomidae (YL) 0 0 0 0 0 0 0 0 0 0.44(1) 0.02(1) g Norone chrysops (YL) 0 0 0 0 0 0 0 0 0 0.44(1) 0.02(1) e5 Norone chrysops (EL) 0.59(3) 2.81(5) 0 0.50(1) 0 0 0 0 0.10(1) 8.41(19) 0.69(29)

Leposts app. (EL) 0 0 0 0 0 0 0 0 0.36(2) 0 0.05(2)

Pomos3 spp. (EL) 0.20(1) 0.56(1) 0 1.01(2) 0.29(2) 0.72(2) 0.16(1) 0 Percidae (YL) 0 0 0 0 0 0 0 1.01(3) 0 0

2.65(6) 1.77(4) 0.36(15) 0.17(7) g Percidae (EL) 0 0 0 0 0 0 0 0 0 0.44(1) 0.02(1) g Etheostoma (YL) 0 0 0 0 0 0 0.16(1) 0 0.10(1) 0 0.05(2)

Etheostone (EL) 0.20(1) 0.56(1) 0 0 0.29(2) 0 0 0 0.18(1) 0 0.12(5) g Etheostone (LL) 0 0 0 0 0 0 0.16(1) 0 0 0 0.02(1) N Perca flavescens (EL) 0 5.62(10) 0 0 0 0.72(2) 0 0 0 0 0.29(12)

Stisontedion opp. (YL) 0 0 0.1((1) 0 0 0 0 0 0 0 0.02(1)

Aplodinotus. grunniens(YL) 0 0.56(1) 5.82(37) 1.51(3) 0.15(1) 0 3.78(24) 2.36(7) 0 0.44(1) 1.76(74)

Aplodinotus grunniens(EL) 0 0 0.63(4) 0 0 0 1.42(9) 0 0 0 0.31(13)

Aplodinotus grunniens(LL) 0 0 0.16(1) 0 0 0 0 0 0 0 0.02(1)

Unidentifiable (*L) 0.39(2) 0.56(1) 1.10(7) 0 0 0.36(1) 1.73(11) 1.35(4) 0.73(4) 0 0.72(30)

TABLE V42-1 (Continued)

Total

' Collected and Date Station 1 Station 2 Station 3 Station 4 Station 5 Tasa Density g Night Day, Night g Night g Night' g N igt.t, Juveniles

>>rsome cepedlanum (JJ) 0 0 0 0.50(1) 0 0 0 0 0' 4 0.02(1) motropis otherinoides (JJ) 0.59(3) 0 0 0 0 0 0 0 0 0 0.07(3)

Ictalorus genetates (JJ) 0 0 0 0 0 0 0.32(2) 0 0 0 0.05(2)-

satinostoms opp. (JJ) 0 0 0 0 0 0 0 0.34(1) 0 0 0.02(1)

Ispnmis opp. (JJ) 0 0 0 0 0 0.36(1) 0 0 0 0 0.02(1)

Adelts notropis otherinoides 0 1.69(3) 0 0 0 0 0 0.34(1) 0 0 0.10(4) motropis stramineus 0 0 0 0 0 0 0 0.34(1) 0 0 0.02(1)

Etheostoma nigrum 0 0 0 0 0 0 0 0.34(1) 0- 0 0.02(1) w Total Station Density C (numwr collected) 50.36 70.26 10.71 19.15 19.00 35.42 17.00 29.67 95.63 75.66 40.76 $

1296) (125) (119) (30) (140) (99) (100) (00) (525) (171) (1709) g

Developmental Stages YL - matched specimens with yolk and/or oil globules present.

EL - Specimens with no yolk and/or oil globules and with no development of fin rays and/or spiny elements. g t'l LL -- Specimens with developed fin rays and/or spiv elements and evidence of a fin fold.

L - Specimens with undefinable larval stage due to damage or deterioration.

Q t-'

H JJ ~ Spe:Imens with complete fin and pigment development, i.e., imastore adult.

O h O

g 8

=

H

DUQUESNE LIGic COMPANY '

1987 ANNUAL ENVIR0! MENTAL REPORT !

catch. Shiners comprised 62.1% of the larvae, and 37.5% of juveniles collected. Gizzard shad comprised 13.0% of the larvae. Eggs (184) made up 10.8% of the total ichthyoplankton catch. Freshwater drum made up 77.7% of the total egg catch.

Seasonal Distribution .

No eggs were collected during the first survey (21 April) and the last survey (10 August) (Table V-H-1) . The two night collections (20 May and 15 July) resulted in a sample density average of 49.79/100 m 3 and 39.05/100 m3 . The 19 June collection yielded a sample density average of 3

55.71/100 m of which shiners and gizzard shad larvae made up 55.6% and 26.6% of the catch, respectively. The 10 August (day) collection showed i a decreased sample density average of 10.62/100 m3 (Table V-H-1) .

! Greatest density (355.79/100 m3 ) was obtained on 14 July (day) at station (5). This was due to a large catch of shiners (Notropis spp. larvae)

(Table V-H-1) . ;

Spatial Distribution t

Larvae were dominant at all stations; however, highest densities were at l Stations 1 and 5. Most of the larvae collected at Stations 1 and 5 were r shiners. Stations 1, 2, 3, 4, and 5 yielded 389, 126, 175, 139 and 682 larvae respectively. ;

i Summary and conclusions j The similarity of species composition and relative abundance of ichthyo- ,

j plankton taken in 1987 along the river transect to those of 1979-1986, ,

j combined with the close correlation between river sampling in front of j i the intake and actual entrainment sampling established in previous years l

, I (DIro 1976,1977,1978 and 1979) suggests little change in ichthyoplank-ton entrainment impact by BVPS in 1987.

I l t i t 111 l

DUQt.',ESNE LIGift COMPANY 1987 ANNUAL ENVIRONMENTAL REPORT

2. Phytoplankton Objectives The phytoplankton entrainment study was designed to determine the congo-sition and abundance of phytoplankton entrained in the intake water system.

Methods After April 1, 1980, plankton sampling was reduced to one entrainment samle collected monthly. Each sample was 1 gal taken f rom below the skimmer wall from one operating intake bay.

In the laboratory, phytoplankton analyses were performed in accordance with procedures described above in Section C, PHYTOPLANXTON. Total den-sities (cells /ml) were calculated for all taxa. However, only densities of the 15 mst abundant taxa each r.cnth are presented in Section C of this report.

Comparison of Entrainment and River Samples _

Plankton sanples were not collected at any river stations af ter April 1, 1980 due to a reduction of the aquatic sampling program, therefore, com-parison of entrainment and river samples was not possible for the 1987 phytoplankton program. Results of phytoplankton analyses for the entrainment sample collected conthly are presented in Section C, PHYTO-PLANKTON.

During the years 1976 throught 1979, phytoplankton densities of entrain-ment samples were usually slightly lower than those of mean total densi-ties observed f rom river sagles (DLCo 1980) . However, the species com-position of phytoplankton in the river and in the entrainment samples were similar (DIro 1976, 1977, 1979, and 1980).

Studies from previous years indicate mean Shannon-Weiner ird ices , even-ness and richness values of entrainfuent samples were very similar to the river samples (DLCo 197?, ar<d 1980) .

112

l DUQUESNE LIGHT COMPANY ,

1987 ANNUAL ENVIRONMENTAL REPORT Summary and Conclusions P4st results of monthly sampling of phytoplankton in the Ohio River near I d

BVPS and within the intake structure showed little difference in densi- i ties (cells /ml) and species composition. During periods of minimum low river flow (5,000 cis), about 4.1% of the river would be withdrawn into the condenser cooling system. Based on the similar densities of phytoplankton in the river and the BVPS intake structure, and the small amount of water withdrawn from the river, the loss of 'hytoplankton was negligible, even under worst case low flow conditions, i t

3. Zooplankton h Objectives I

The zooplankton entrainment studies were designed to determine the com-l position and abundance of zooplankton entrained in the intake water [

system.

Y Methods Plankton entrainment samples were collected and zooplankters were j counted. For the zooplankton analyses, a well-mixed sample was taken and '

processed using the same procedures described in Section D, 200PIANKTON.

l After April 1, 1980, plankton sampling was reduced to one entrainment sample collected monthly. Each sample was 1 gal taken from below the i

skimmer wall from one operating intake bay. ;

Total densities (number / liter) were calculated for all taxa, however,

only taxa which comprised greater than 24 of the total are presented in I Section D, ZOOPLANKTON.

i Comparison of Entrainment and River Samples j l Plankton samples were not collected at any river stations af ter April 1, f 4

1980 due to a reduction of the aquatic sampling program, therefore, com-g parison of entrainment and river samples was not possible for the 1987 sooplankton program. Results of sooplankton analyses for the entrainment

]

i sample collected monthly are presented in Section D, ZOOPLANKTON. '

l i e

J J

l 113 l

DUQUESNE LIGiff COMPANY 1987 ANNUAL ENVIRONMENTAL REPORT During past years, composition of zooplankton was similar in entrainn.ent and river samples (DLCo 1980) . Protozoans and rotifers were predomin?.nt, whereas crustaceans were sparse. Densities of the four most abundant taxa for each month (DLCo, 1976, 1977, 1979, and 1980) indicate the same taxa were present in both river and intake samples. In addition, they were present in similar quantities. Shannon-Weiner indices, evenness, and richness values for river and entrainment samples were also similar, further demonstrating similarity between entrained and river zooplankton.

nummary and Conclusions Past results of monthly sampling of zooplankton in the Ohio River near BVPS and within the intake structure showed little difference in densi-ties (number / liter) and species composition. During periods of minimum, low river flow (5,000 cfs), about 4.1% of the river would be withdrawn into the condenser cooling system. Based on the similar densities of zooplankton in the river and the BVPS intake structure, and the small amount of water withdrawn from the river, the loss of zooplankton was negligible, even under worst case low flow conditions.

114

DUQUESNE LIGHT COMPANY 1987 ANNUAL ENVIRONMENTAL REPOPT I. Corbicula MONITORING PROGRAM Introduction The introduced Asiatic clam, Corbicula fluminea (Figure V-I-1), was first detected in the United S tates in 1938 in the Columbia River near Knappton, Washington (Burch 1944) . It has since spread throughout the country, inhabiting any suitable freshwater body. Information from prior aquatic surveys has demonstrated the presence of Corbicula in the Ohio River in the vicinity of the BVPS, and the plant is listed in NUREG/CR-4233 (Counts 1985) .

One adult clam is capable of producing many thousands of larvae called veligers. These veligers are very small (approximately 0.2 mm) and may pass easily through the water passages of a power plant. Once the veliger settles and attaches itself to the substrate, growth of the clam occurs very quickly. If clams develop within a power plant's water pas-sages, they impair the flow of water through the plant. Reduction of flow may be so severe that a plant shutdown is necessary, as occurred in 1980 at Arkansas Nuclear One Power Plant. The clans are of particular concern when they develop undetected in emergency systems where the flow of water is not constant (NRC, IE Bulletin 81-03) .

These clams are extremely hardyi they can live out of water for more than a week. Poisons and other water-borne control methods have generally proved to be inadequate because the clams can survive prolonged periods closed in their shells.

The Corbicula Monitoring Program includes the Ohio River and the circu-lating cooling water system of the BVPS (intake structure and cooling tower). This report describes this Monitoring Program and the results obtained aring field and plant surveys conducted through 1987.

1. Monitoring Objectives The two objectives of the Monitoring Program were to evaluate the presence of Corbicula at the BVPS and to assess the population of 115

l DUQUESNE LIGiff COMPANY 1987 ANNUAL ENVIRONMENTAL REPORT l i

I a cm l I I k

i

@> y,(I- , >

5 2 3

Cmi ~

)

~

4 ,

Cody 1985, Aquatic systems Corporation Photographs 1 and 3 show key characteristic (serrated hinges) for genus level identification FIGURE V-I-l PHOTOGRAPHS OF Corbicula COLLECTED AT BVPS

DUQUESNE LIGHT COMPANY 1987 ANNUAL ENVIRONMENTAL REPORT Corbicula in the Ohio River in order to evaluate the potential for infestation of the BVPS.

Methods (Unit 1 Cooling Tower)

Collections were made (29 April and 15 December) in th9 upper and lower reservoirs of Unit 1 cooling tower during shutdown periods. Samples were collected using a (6x6") petite Ponar dredge. Samples were taken at the east side in the upper reservoir. The lower reservoir was sampled at seventeen (17) stations within the cooling tower using a 14 ' boat (29 April) and walked af ter draining on 15 December (Figure V-I-2) .

(Unit 2 Cooling Tower)

Collections were made (5 June) in the reservoir of Unit 2 cooling tower prior to the initial fueling and startup of Unit 2. Samples were collected using a (6 x 6") petite ponar dredge. The lower reservoir was sampled at twenty-two (22) stations within the cooling tower using a 14' boat.

The substrate of each sample was characterized at the time of collection.

The samples were then returned to the laboratory and sorted for Corbicula within 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months of collection. This procedure increased overall sorting efficiency because formalin, normally used to preserve the samples for long periods of time, was not needed and live Corbicula could be seen moving in the sorting trays. Counts were made of live and dead Corbicula for each dredge sample. These counts were converted to densities 2

(clams /m ) for each collection based on the surface area sangled by the dredge.

(Intake) l Plant operations personnel have the intake surveyed semi-annually by divers for silt buildup, and if necessary, the intake bays are cleaned.

Cleaning of all four bays occurred in October and November 1987 by divers using a Flygt 20 hp submersible pump. This pump has a capacity of 500 gpm (1,750 rpm) and uses a five inch propeller to push water and debris 117

DUQUESNE LIGifr COMPANY 1987 ANNUAL ENVIRONMENTAL REPORT

('IVO DIMENSIONAL: CROSS SECTIONAL HORIZONAL VIEW) guJuup 12 e e l3 S TAI R WAY e e e2 q gy 98 16 9 9 14 93 j STAIRWAY A s ,.

8 a 4 M. .

7' .

6

s WATER OUTLPT .

a II u EQUIPMENT I . '

ACCESS RAMP 50 FEET O SAMPLE LOC ATION WITHIN THE LOWER WATER RESERVOIR FTGURE V-I-2 Corbicula MONITORING PROGRAM SAMPLING STATIONS OF THE LOWER RESERVOIR OF UNIT I COOLING TOWER BVPS 118

DUQUESNE LIGHT COMPANY 1987 ANNUAL ENVIRONMENTAL REPORT through a flexible hose (Jenkins and Logar 1985) . Water and debris were sluiced through the drainage system of the intake structure, where some of the larger clam shells remained after the cleaning operations. Survey of the auxiliary intake was also made.

(River)

Field collections were generally made during the same week as in-plant 1

collections. Samples were collected using either a regular Ponar (9x9")

l or a petite Ponar (6x6") dredge along transects across the river. ^en transects were established along the Ohio River, four upstream, five downstream and one at the plant intake. A transect was also established on Raccoon Creek (Figure V-I-3) .

Two transects below the BVPS were divided where samples were taken on either side of Phillis and Georgetown Islands. Each transect was based on suitable substrate (e.g., sand and/or gravel) or heated discharge (HD). Each statio.. was identified by river navigation mile (Figure V-I-3). In Hsy and September samples were collected which included a single lef t shore, right shore, and mid-channel station. The collection and laboratory methods were identical to those om 5 for samples from the plant.

Results (Unit 1 Cooling Tower)

Results of the April and December Corbicula surveys of Unit 1 cooling tower are presented in Table V-I-1A and V-I-1B respectively. Densities were calculated only for live Corbicula, as densities for empty shells do not translate into potential colonizers, and such figures could be distorted by the r^ distribution of dead clams by currents. No live Corbicula were collected in the upper reservoir; however, the presence of shells indicates that they were transported within the circulating water sys tem. Based on the 17 Ponar grab samples taken from the lower reservoir, the estimated number of clams inhabiting this area was 20 119

OEAVfR HIVL'N N

ROCHLSirR 28.1 tiL AVLit t

30.0 p\ COfAWAY l 37 5 330 I O'2 YAHUS 37.0 OlllOVIFW g6 I g U

l l 4 hACC00N

}

IDLAND , MOtJTGOM E RY h LOCKS M OAM Elg LOf tGL T OWFJ BADEN $ 14 C

ta

.' A' "L ^v t "

34 3 Amuiren E5

. VA L L E Y j Og eOWLH MBHIDGE q 3S 4 ;

-__ ~, .

5 35 O SCALL MIL E S 3

4 j souTis LLGEND tiLIGH TS b-4 SAMPLE SI AllON HIVLit MIL t. Po irJ T **

N DASHiE L 05 LOCK & DAM FIGURE V-I-3 Corbicula MONI'10 RING PROGRAM SAMPLING STATIONS, 01110 RIVER SYSTEM IWPS

DUQUESNE LIGHT CCHPANY 1987 ANNUAL ENVIRO!&. ENTAL REPORT TABLE V-I-1A Corbicula COLLECTED IN UNIT 1 COOLING TOWER APRIL 29, 1987 BVPS Clams Collected Station Density d

Sample Location Subs tra te Alive Dead __ Live Clams /m Upper Reservoir Northeast sil 0 26 0 East A sil 0 238 0 East B sil 0 157 0 Southeast sil 0 11 0 Lower Reservoir 1 sil 1 1 43 2 sil 22 2 947 3 sil 0 0 0 4 sil 100 4 4,306 5 sil 39 4 1,679 6 sil 0 0 0 7 sil 0 0 0 8 sil 11 4 474 9 sil 0 0 0 10 sil 79 2 3,401 11 sil 89 2 3,832 12 sil 198 4 8,525 13 sil 0 0 0 14 sil 10 0 431 15 sil 57 5 2,454 16 sil 0 0 0 17 sil 0 0 0 l

Substrate Codes: .-

sil - silt e/

4

DUQUESNE LIGHT COMPANY 1987 ANNUAL ENVIROMENTAL REPORT V-I-1B Corbicula COLLECTED IN UNIT 1 COOLING TOWER DECEMBER 15, 1987 BVPS Clams Collected Station Density Sample Location S ubstra te Alive Dead Live Clams /m' Upper Reservoir Qualitative Sample sil 0 214 0 (East)

Lower Reservoir ,

1 sil 339 10 14,596 2 sil 353 16 15,199 3 sil 310 3 13,347 4 sil 288 1 12,400 5 sil 443 5 19,074 6 sil 809 15 34,832 7 sil 139 7 5,985 8 sil 0 0 0 9 sil 731 23 31,474 10 sil 309 5 13,304 11 sil 326 3 14,036 12 sil 400 2 17,222 13 sil 215 2 9,257 14 sil 231 1 9,946 15 sil 121 2 5,210 16 sil 105 0 4,521 17 sil 215 2 9,257 Substrate Codes:

sil - silt 122

DUQUESNE LIGiff COMPANY 1987' ANNUAL ENVIRONMENTAL REPORT million (29 April) of which 964 were alive 'and 178 million (15 December) of which 98% were alive. Sizes ranged from 1.0 to 26.0 mm at the widest portion of the shell.

(Unit 2 Cooling Tower)

Results of the June Corbicula survey of Unit 2 cooling tower are presented in Table V-I-lC. No live Corbicula were collected in the reservoir; however, the presence of shells indicates that they were transported within the circulating water system.

(Intake)

While performing the innerbay cleaning operat: on (October and November 1987), the divers observed clams in each of Fae bays close to the intake pumps. Approximately one 55 gallon drum o'. clams was removed from each of Bays A and D with a lesser amount from Bays B and C (Hammill 1987) . A cut-away diagram of the intake structure is provided in Figure V-I-4.

The auxiliary intake also was surveyed and divers reported cla:as around the intake punps of Unit 1 and 2 (Hammill 1987) .

(River)

The results of the Corbicula survey in the Ohio River are given in Tables V-I-2 (May) and V-I-3 (September) . Dead clams were not counted in samples of the regular macroinvertebrate monitoring program.

The clams displayed a preference for sand and gravel dominated substra-tes. Fewer Corbicula were collected in May as compted to September's collection. The largest density of clams was found in September above Montgomery Lock and Dam, (M.P. 30.0).

Table V-I-4 summarizes Corbicula frequency in past macroinvertebrate

! collections for tht BVPS (1973 through 1987) . Peaks in population den-sity are apparent in the years 1976 and 1981; no Corbicula were found during 1973, 1979 and 1980. Corbicula densities increased during fall collections.

Data, from collections of Corbicula during impingement sampling, are presented in Table V-I-5. Peak numbers of Corbicula occured in June 123

i l DUQUESNE LIGHT COMPANY 1987 ANNUAL ENVIRONMENTAL REPORT TABLE V-I-lC Corbicula COLLECTED IN UNIT 2 COOLING TOWER JUNE 5, 1987 BVPS Clams Collected ~ Station Density Sample Location Substrate Alive Dead Live Clams /m' Lower Reservoir 1 sil 0 0 0 2 sil 0 0 0 3 sil 0 0 0 4 sil 0 0 0 5 sil 0 0 0 6 sil 0 0 0 7 sil 0 1 0 8 sil 0 0 0 9 sil 0 1 0 10 sil 0 0 0 11 sil 0 0 0 12 sil 0 0 0 13 sil 0 0 0 14 sil 0 0 0 15 sil 0 0 0 16 sil 0 0 0 17 sil 0 1 0 18 sil 0 0 0 19 sil 0 0 0 20 sil 0 0 0 21 sil 0 0 0 22 sil 0 0 0 Substrate Codes:

sil - silt 124 r i

DUQUESNE LIGiff COMPANY 1987 ANNUAL ENVIRONMENTAL REPORT (THREE DIMENSIONAL: CUTAWAY VIEW) p, .4 TRASH ' '% i RACK N ^ j"##l"'

AREA CLEANED SY DIVING OPER ATIONS F

L%gH#l Jl)l, Y 4

. g a:7 TR AVELING SCR EE N e

C

f. --%

~

E Ill D%

2AY

~

/ ,

sld ]#

ARE A CLEANED BY DIVING OPERATIONS SAY D (TWC DIM ENSICNAL: SIDE VIEW)

~

g Q[ TRAVELING SCREEN bl TRASH RAC<

ARE A CLE ANED BY DIVING OPERATIONS /

rl L

a~.:. s g A

. /

//

ARE A CLE ANED BY DIVING OPER ATIONS FIGURE V-I-4

\

Corbicula MCNITORING PROGRAM SAMPLING STATICNS INTAKE STRUCTURE BVPS 23 y

DUQUESME LIGHT COMPANY 1987 ANNUAL ENVIROleGENTAL REPORT l

TABLE V-I-2 Corbicula COLLECTED IN THE OBIO RIVER MAY 13, 1987 BVPS Class Station Sample River Collec ted Density _

Location Wile Bank Depth Substr ate Alive Dead Live Claas/m' Raccoon Creek 0.3 R 4 sil 0 0 0 M 5 sil/ san 0 0 0 L 2 sil 0 0 0 Ohio River 28.2 1 2 sil 0 0 0 J 33 san /gra 0 1 0 2 sil 0 1 0

2. R 3 sil 0 0 0 M 30 san 0 0 0 L 6 sil 0 1 0

R 2 san /gra 0 0 0 M 19 san /gra 0 0 0 L 3 sil 1 2 43 34.5%1) R 3 sil 0 1 0 M 22 bed 0 0 0 L 2 sil 0 - 0 L 2 sil 0 - 0 34.8 R 4 sil 0 1 0 M 23 gra 0 0 0 L 22 sil 0 3 0 (Back Channel)35.0 R 9 cla/sil 0 0 0 M 25 sil/ san 0 3 0 L(HD) 2 sil 1 0 43

35. 4 ( 2A) R 2 gra 0 0 0 M 18 san /gra 0 0 0 L 3 cla/ san 0 - 0 L 3 cla/ san 1 - 20 (Back Channel)35.4(2B) R 3 sil 0 -

0 M 12 san / cob 0 - 0 L 4 sil 3 - 59 (Back Channel)35.7 R 2 sil/ cob 1 2 43 M 12 san /gra 0 1 0 3 sil 0 0 0 37.0(3) L R (HD) 4 sil 1 2 43 M 25 gra 1 0 43 L 2 sil 2 - 39 L 2 sil 1 - 20 37.5 R 4 cla/sil/ san 0 0 0 M 23 gra 0 0 0 L 3 gra 0 1 0 (Back Channel) 37.5 R 8 sil 0 0 0 M 23 san 0 0 0 L 2 sil/det/ san 0 0 0 Substrate Codes: Footnote 3 bed - bedrock (ED) - Heated Discharge cla - clay (1) - Transect 1 cob - cobble (2A) - Transect 2A (Main Channel) det - detritus (28) - Transect 2B (Back Channel) gra - gravel (3) - Tr ansect 3 san - sand sil - silt 126

DUQUESNE LIGHT COMPANY 1987 ANNUAL ENVIRONMENTAL RE10RT TABLE V-I-3 Corbicula COLLECTED IN THE OHIO RIVER SEPTEMBER 16 & 17, 1987 BVPS Class S tation Sa mple River Collected Density _

Location Mile Bank Depth S ubst r a te Alive Dead Live Clams /m' Raccoon Creek 0.3 R 2 sil 0 0 0 M 5 sil 0 0 0 L 1 sil 0 0 0 Ohio River 28.2 R 1 sil 0 1 0 M 33 sil 0 0 0 L 1 sil 1 0 43 30.0 R 1 sil 6 2 258 M 28 san /gra 0 0 0 L 5 gra 1 1 43 33.0 R 1 san 3 4 129 M 18 bed 0 0 0 L 1 sil 3 8 129 34.5(1) R 2 san /gra 0 3 0 M 23 bed 0 0 0 L 2 sil 2 -

39 L 2 sil 1 -

20 34.8 R 1 sil 2 4 86 M : bed 0 0 0 L . sil 1 4 43 (Back Channel)35.C R sil 4 2 172 M ;4 sil 1 1 43 L(HD) 1 sil 1 2 43 35.4 I1AI R 4 gra 1 1 43 M 19 gra 5 1 215 L 2 cla 5 -

99 L 2 cla 7 -

138 (Back Channel) 35.4 (23) R 2 sil 2 - 39 M 11 gra 4 -

79 L 2 sil 3 -

59 (Back Channel) 35.7 R 1 sil 2 5 85 M 12 gra 1 2 43 L 2 cil/gra 1 3 43 37.0(3) R IUDI 1 sal 0 5 0 M 19 gra 0 0 0 L 2 sil 3 - 59 L 2 sil 7 - 138 37.5 R 2 s an 0 1 0 M 22 bed 0 0 0 L 4 gra 0 1 0 (Back Channel) 37.5 R 4 sil 0 1 0 M 20 sil 2 2 86 L 1 sil/ san 1 3 43 Substrate Codes: Footnotes bed - bedrock (ED) - Beated Discharge cla - clay (1) - Transect 1 cob - cobble (2A) - Transect 2A (Main Channel) gra - gravel (2B) - Tr ansec t 2B (Back Channel) san - sand (3) - Transect 3 sil - silt 127

DUQUESNE LIGiff COMPANY 1987 ANNUAL ENVIR0tMENTAL REPORT TABLE V-I-4 2

Corbicula DENSITIES (clams /m ) SUMMARIZED FROM BENTHIC MACROINVERTEBRATE COLLECTIONS 1973 THROUGH 1987 BVPS TRANSECT 1 2A 2B 3 Back L Date L M R L M R Channel L M R 1

1973 Nov 0 0 0 0 0 0 0 0 0 0 1974 May 0 0 0 0 0 0 0 0 0 0 Jun 0 0 0 0 0 0 0 0 0 0 Jul 0 0 0 0 0 0 0 0 0 0 i Aug 0 0 0 0 0 0 0 0 0 0 Sep 0 0 7 0 0 0 0 0 0 0 1975 Aug, 26 7 0 20 20 20 33 20 7 0 0 Nov , 13 0 0 0 7 46 0 7 0 198 0 1976 Feb, 24 7 0 0 0 0 0 13 0 0 0 May, 25 0 0 0 0 0 0 0 0 0 0 Aug, 18 40 20 290 99 0 53 92 0 20 0 Nov 0 0 356 13 475 20 139 7 422 13 1977 Feb, 24 0 0 7 7 53 508 7 0 7 0 May, 17 0 0 0 0 7 0 0 0 0 0 Aug, 17 0 0 0 0 86 7 13 0 172 0 Nov 13 20 59 0 46 13 46 7 145 0 1978 Feb, 15 0 13 0 0 0 132 6 6 6 32 May, 18 0 0 0 0 0 0 0 0 0 0 Aug, 9 0 0 0 6 13 0 0 0 0 0 Nov, 14&l5 25 13 0 6 403 38 32 6 19 6 1979 Mar, 22 0 0 0 0 0 0 0 0 0 0 May, 25 0 0 0 0 0 0 0 0 0 0 Aug, 1 0 0 0 0 0 0 0 0 0 0 Nov, 14 0 0 0 0 0 0 0 0 0 0 1980 Feb, 13 0 0 0 0 0 0 0 0 0 0 May, 21 0 - -

0 - -

0 0 - -

Sep, 23 0 - -

0 - -

0 0 - -

1981 May, 12 0 - -

0 - -

7 0 - -

Sep, 22 40 - -

90 - -

408 99 - -

1982 May, 18 0 - -

0 - --

0 0 - -

Sep, 23 0 - -

10 - -

0 0 - -

1983 May, 11 20 - -

0 - -

0 0 - -

Sep, 13 59 - -

20 - -

251 40 - -

1984 May, 10 0 - -

0 - -

7 0 - -

Sep, 6 0 - -

0 - -

0 0 - -

1985 May, 15 0 - -

0 - -

0 0 - -

Sep, 19 89 - -

0 - -

99 40 - -

1986 May, 13 0 - -

0 - -

0 0 - -

Sep, 15&l6 20 - -

20 - -

184 0 - -

1987 May , 13 0 - -

10 - -

20 30 - -

Sep, 16&l7 30 - -

118 - -

59 99 - -

(-) indicates area not sampled 128

DUQUESNE LIGHT COMPANY 1987 ANNUAL ENVIRO!EENTAL REPORT TABLE V-I-5

SUMMARY

OF Corbicula COLLECTED DURING IMPINGEMENT SURVEYS FOR ONE 24-HOUR PERIOD PER WEEK, 1987 BVPS Number Collected Operating Non-Operating Date Intake Bays Intake Bays Month M Alive Dead Alive Dead January 2 0 1 0 0 9 0 0 0 1 16 0 0 0 0 23 0 0 0 0 30 0 0 0 0 February 6 0 0 0 0 13 0 0 0 0 20 0 1 0 0 27 0 1 0 0 March 6 0 1 0 0 13 0 0 0 1 20 0 0 1 2 27 0 1 0 1 April 3 0 0 0 1 10 0 1 0 0 17 1 0 0 0 24 0 0 0 0 May 1 0 2 0 1 8 0 3 0 1 15 0 1 0 0 22 3 11 0 0 29 3 2 0 0 June 5 25 21 0 0 12 27 20 0 0 19 33 33 8 7 26 53 38 8 5 July 3 13 16 7 5 10 32 27 0 0 17 8 12 5 6 24 7 10 9 1 31 32 37 0 0 129

DUQUESNE LIGHT COMPANY 1987 ANNUAL ENVIRO! MENTAL REPORT TABLE V-I-5 (Continued)

Number Collected Operating Non-Operating Date Intake Bays Intake Bays Month M Alive Dead Alive Dead August 7 45 43 10 15 14 27 23 0 0 21 51 36 0 0 28 45 46 7 21 September 4 48 77 0 0 l 11 38 52 0 0 l 18 12 52 0 0 25 26 29 0 0 l

l October 2 10 30 0 3 9 12 19 0 1 16 6 2 0 0 23 2 5 0 0 l 30(a) - - - -

I November 7 (a) - - - -

13 (a) - - - -

15 5 16 4 16 20 3 4 0 2 27 0 4 0 0 December 4 0 0 1 0 11 0 1 0 0 18 (b) - - - -

24 0 1 0 0 TOTAL 567 679 60 90 (a) Impingement could not be conducted due to diving operations in screenhouse.

(b)Iispingement could not be conducted due to outage activities.

130

DUQUESNE LIGHT COMPANY 1987 ANNUAL ENVIRONMENTAL REPORT through October; numbers gradually declined through the end of December (Figure V-I-5).

Summary The results of the 1987 Corbicula Monitoring Program show that no live clams were collected from the upper reservoir of Unit 1 cooling tower.

Since the water entering this area comes directly from the condensers, it -

is suspected that elevated water temperatures makes this area unsuitable for the clams. Corbicula survive in the lower reservoir with an esti-mated population of 20 million clams (96% alive) on 29 April and 178 million claws (98% alive) on 15 December. No live Corbicula were collected in the reservoir of Unit 2 cooling tower. From the river surveys conducted in May and September 1987, Corbicula inhabit the upper Ohio drainage, providing the opportunity for clams to enter BVPS.

131

Illj oS m v oE s 3* 5 gQ g g a85 rD

\ i N L

A T T O - i O N T E7 M8 E9 G1 o N i S I ,

PK ME IE W

G i A NR IE RP U

D DD A i J O

E 5 DI D - ER I TE H - CP T V E S i J N LRP

+ O E LUV R OOB M U CH G -

I a 4 s

M F l 2 u

cE N

i b O r

vA o R C O E F V F I

L OS A Y h M YE RV AR MU O MS U

$F S

$J

- 0 0 0 0 0 0 0 0 0 0 5 0 5 0 5 0 5 4 3 3 2 2 1 1 oId y d' - sO0 $ atW2aZ ww" l I lIl

DUQUESNE LIGiff COMPANY 1987 ANNUAL ENVIROtMENTAL REPORT

2. Growth Study objective The Corbicula growth study was designed to collect data on the growth rates of clams held in the intake structure and Unit 1 cooling tower.

Methods To calculate growth rates of clams in the Unit 1 cooling tower and the intake structure, clams of known size were housed in square foot cages constructed of imm mesh fiberglass screening secured over a plastic frame and placed in the study areas. Because organisms generally slow in growth as they age, three size classes were chosen to calculate growth rates. Table V-I-6 lists the range of shell lengths used to determine each size class, locations where cages were placed, and number of clams (density) in each cage. Shell length (maximum anteroposterior dimension) was measured to the nearest 0.05mm with Vernier calipers.

Cages were placed in the Unit 1 cooling tower on July 2, 1987. Clams held in these cages originated from the population residing in the cooling tower. Cages were placed in the intake structure on July 17, 1987. Clams held in these cages had been removed from the cooling tower in early May and maintained in laboratory aquaria prior to their placement in the intake structure. Initial shell length measurements were made before each cage was placed in its respective location. Thirty clams were randomly selected from each size class, measured to the nearest 0.05 mm with vernier calipers, and placed back into their respective cages.

Field measurements began on July 31, 1987 at the intake structure and Unit 1 cooling tower. Sampling procedures were the same as those used in 1

l the initial sampling; thirty clams were randomly selected, shell length was measured and recorded, and all individuals were returned to their original cages. An effort was rude to keep each clam out of water for as little time as possible. Sampling continued every 28 days until mid-December when Unit 1 was taken off-line for refueling.

133

DUQUESNE LIGHT C04PANY 1987 ANNUAL ENVIRONMENTAL REPORT TABLE V-I-6 RANGES OF Corbicula SHELL LENGTHS MEASURED FOR GRCHTH STUDY,1987 BVPS Size Leng th Density Class Location Range (mm) (n)

C-A Unit 1 Cooling Tower 7.00-9.95 100 C-B Unit 1 Cooling Tower 14.00-16.95 100 C-C Unit 1 Cooling Tower 21.00-23.95 100 I-A Intake Structure 7.00-9.95 83 I-B Intake Structure 14.00-16.95 100 I-C Intake Structure 21.00-23.95 100 13_4_ _ _ _ _ _

DUQUESNE LIGHT COMPANY 1987 ANNUAL ENUIRONMENTAL REPORT Results Table V-I-7 and Figures V-I-6 and V-I-7 summarize the growth data collected from the intake structure and Unit 1 cooling tower. The greatest average increase in shell length occurred among clams in size class A. Those mainte.ined in the intake structure increased an average 8.9 mm during the study while those in the cooling tower had an average increase of 11.0 m:n in shell length. Size class C had the smallest average increase, 3.6 mm in the intake structue and 2.9 mm in the cooling tower. Size class B increased an average 5.8 mm in the intake structure and 6.9 mm in the cooling tower.

Summary The results obtained show that growth of Corbicula was more rapid in the cooling tower than in the intake structure, especially for the small clam group (size class A). The higher year round temperatures within the cooling tower system probably sustained growth - rates longer than in the river. This may also be a result of increased nutrients present in the cooling tower due to the evaporation of water in the cooling tower heat loss process concentrating river water nutrients.

In general, for both the intake structure and cooling tower waters, clams of all sizes increased most rapidly during the first two months of analysis from July to September 1987 and tended to level off in growth thereafter.

l l

l 135

l l

l I

TABLE V-I-7 M

l RESULTS OF Corbicula CRONTH STUDY l IN INTAKE STRUCTURE AND UNIT 1 COOLING TOWER p ty O

INTAKE STRUCTURE ag hg l

z Size Class A Size Class B Size Class C k l

Sampling Date 9 e n 9 e n 9 e n $[

MO l Jul 17 8.657 0.761660 30 15.633 0.928322 30 22.013 0.672993 30 Og Jul 31 10.966 0.806901 29 16.610 0.847756 30 22.307 0.556735 30 Aug 28 14.641 0.627466 28 19.168 0.850809 30 23.847 0.614892 30 0 Sep 25 16.626 0.769812 29 20.470 0.974202 30 25.497 0.737065 30 Oct 23 17.405 0.758451 28 20.857 0.983286 30 25.377 0.632010 30 30 h

Nov 20 17.650 0.763641 28 20.817 0.817938 30 25.625 0.634735 Dec 18 17.593 0.773873 29 21.387 0.809740 30 25.615 0.546801 30 $

3 W

UNIT 1 COOLING TOWER d i Jul 02 8.972 0.608940 30 15.280 0.899578 30 22.428 0.198456 30 Jul 31 13.652 0.416157 30 18.437 0.758735 30 23.472 0.647766 30 Aug 28 16.797 0.728713 30 19.883 0.668933 30 24.337 0.892008 30 Sep 25 17.435 2.014737 30 20.890 0.793660 30 24.813 0.668237 30 Oct 23 18.812 0.777006 30 21.175 0.590551 30 24.810 0.970283 30 Nov 20 19.675 0.745301 30 21.752 0.684620 30 25.202 0.611172 30 Dec 15 19.993 0.539114 30 22.178 0.553466 30 25.368 0.531342 30 MEAN SHELL LENGTH IN MILLIMETERS (y), STANDARD DEVIATIONS (s), AND SAMPLE SIZE (n) CAICULATED FOR EACH SAMPLIN"; DATE l

DUQUESNE LIGIff COMPANY 1987 ANNUAL ENVIR0lMENTAL REPORT 30 28 -

26 - x x X X 24 - x

- 22 - x x E , o o E 20 -

18 - , + ,

zw o +

16 - o J 14 -

d l h 12 -

+

l

}2 10 -

e_

6-4-

2-0 . . . . . i i . . . . . . . . .

0 20 40 60 80 100 120 140 160

( DAYS HEl.D IN CAGES

+ SIZE Ct. ASS A 0 SIZE CLASS 8 X SIZE CLASS C 100 90 -

e c 6

u 70 -

5 e

E 60 -

2 W

S0 -

40 -

l 30 i i i i i i i i i i i i i i i i 0 20 40 60 80 100 120 140 160 FIGURE V-I-6

SUMMARY

OF Corbicula GROWTH DATA AND WATER TEMPERATURES IN INTAKE STRUCTURE BVPS 137

DUQUESNE LIGifT COMPANY 1987 ANNUAL ENVIRONMENTAL REPORT 30 26 -

26 -

X X X X X

24 - X a 22 - X o O E o o E 20 - o + +

18 - ,

{ 16 -

J 14 -

l +

Y g 12 -

{2 10 -

e_

6-4-

2-0 , , , , , , , , , , , , , , , ,

O 20 40 60 80 100 120 140 160 g DAYS HELD IN CAGES

+ SIZE CLASS A 0 S!ZE CLASS B X SIZE CLASS C 100 90 -

80 -

C L

w 70 -

5 4

e E 60 -

3 50 -

40 -

30 . i i i i i i i i i i i i , i i 0 20 40 60 80 100 120 140 160 FIGURE V-I-7

SUMMARY

OF Corbicula GROWI'H DATA AND WATER TEMPERATURES IN UNIT 1 COOLING TOWER BVPS 138

__j

DUQUESNE LIGiff COMPANY 1987 ANNUAL ENVIRONMENTAL REPORT

3. Spawning Study Objective the Corbicula spawning study was designed to collect data on the reproductive activity of clams inhabiting the intake structure and Unit 1 cooling tower.

Methods One hundred (100) adult class (those with a shell length >17.0 un) were l held in cages (described in methods section of Corbicula growth study) in the intake structure and Unit 1 cooling tower. Cages were placed in the cooling tower on July 2,1987 and consisted of three (3) cages containing laboratory animals (A) and four (4) cages containing clams renoved from the cooling tower (B) . The intake structure cages were placed on July 17, 1987 and consisted of three (3) cages containing laboratory clams.

Sampling in the ccoling tower began on July 17, 1987 and the intake structure was sanpled on July 31, 1987. Thereafter, sanpling occurred every fourteen (14) days.

On each sampling date, twenty (20) clams were renoved from cages from each population held in the cooling tower and the single population held in the intake structure. Samples were transported to the laboratory dry for examination.

In the laboratory, the shell length of each clam was measured to the nearest 0.05 mm with a Vernier caliper and recorded. One of the inner gills (demibrannh) from ea::h clam was removed, teased apart, and examined under magnification for the presence of pediveliger larvae. The gravid condition of each clam was then recorded using the following criteria:

Number of larvae Gravid Co_ndition 0 none 1-49 few 50-100 noderate 101-500 many

>500 gorged 139

DUQUESNE LIGHT COMPANY 1987 ANNUAL ENVIRONMENTAL REPORT Results The Corbicula spawning study data, expressed as the percentage of clams examined in each gravid condition, is illustrated graphically in Figures V-I-8 and V-I-9 for the intake structure and Unit 1 cooling tower respectively.

The greatest percentage of clama, examined having pediveliger larvae in I the inner gill in the intake structure occurred on August 28, 1987 when l

70% were in a gravid condition. The greatest percentage of clams l

l exhibiting a gorged condition in the intake structure occurred on July 31, 1987 when 20% of the clams examined were incubating more than 500 pediveliger larvae each.

In the cooling tower, the greatest percentage of clams in a gravid condition occurred on August 17, 1987 when 45% of the clams from the cooling tower population (B) were incubating larvae. At no time did any clams from either population (A or B) in the cooling tower exhibit a gorged condition.

Summary The only period of potential larval release from gravid adult clams occurred from July 31, 1987 through August 28, 1987 at the intake structure. Two weeks later at the intake, larval release was over.

Therefore, the larval release period took at least four weeks but probably less than six as clams were subjected to ambient river temperature conditions.

There was inconclusive data of a major larval release period in the Unit 1 cooling tower. Possibly, the consistently warm temperature conditions maintained within the tower may have retarded or prevented a spawning season. Many cold-blooded organisms require a cold period to re-establish their reproductive cycles. The reproductive cycles of Corbicula at BVPS is still under investigation.

The large population of clams found in the cooling tower is evidently being supplemented by small juvenile and adult clams circumventing the travelling screens in the intake structure. Gravid clams that enter the 140

DUQUESNE LIfiff COMPANY 1987 ANNUE ENVIRONMENTE REPORT INTAKE STRUCTURE (LAS POPULATION) 100 90 -

w 80 -

70 -

60 -

8 so - m 30 -

M :

20 -

Y 4

0 . 4.4%w.

JUL 31 AUG 17 AUG 28 SEP 11 SEP OS OCT 11 OCT 23 NOV 06 NOV 20 CEC C4 DEC 18 crauD ccNomes W FE# M WCOERATE k2Zj kMW C@ COR ZD l

FIGURE V-I-8 RESULTS OF Corbicula SPAWNING STUDY IN INTAKE STRUC"IURE BVPS 141

DUQUE3NE LIElff COMPANY 1987. ANNUAL ENVIRoteGENTAL kEPORT

, C00UNO TOWER (LAB POPtAAT10N) A so -

W 80 -

70 -

e 9 60 -

50 -

40 -

j 10 30 - ,

-0 V og -

i a i 5 i e i e i e i i JUL 17 JUL 31 AUG 17 AUG 28 EP 11 EP 75 OCT 11 OCT 23 NOV D6 NW 20 CEC 04 DEC 15 i

C00VNG TOWER (TOWER POPULATION) B 100 90 -

W 80 -

70 -

t 60 -

So -

~

30 - s 4 x%

M 20 -

' ~ h

</, //

',,./

0 , , '/,/ (/l, , , '/, / , , , , ,

JUL 17 JUL 31 AUG 17 AUG 22 TP 11 EP 25 OCT 11 OCT 23 NOV 06 NOV 20 0E0 04 DEC 15 GRAuD coNDmcN M FEw 8 WOCERATE M WANY Q@ GORED FIGURE V-I-9 RESULTS OF Corbicula SPAWNING STUDY IN UNIT 1 COOLING TOWER

- BVPS 142

DUQUESNE LIGiff COMPANY 1987 ANNUAL EtWIRONMENTAL REPORT tower then release their larvae which may remain in the cooling tower or are cycled back out into the river. Larvae, released from clams spawning in th'e river, may also enter the plant through the travelling screens and establish themselves in the cooling tower.

1 4

143

1 VI. REFERENCES Conunonwealth of Pennsylvania, 1985. Pennsylvania's Endangered Fishes, j Reptiles and Amphibians. Published by the Pennsylvania Fish Commission.

Cnunts, C. C. III, 1985. Distribution of Corbicula fluminea at Nuclear i Facilities. Division of Engineering, U. S. Nuclear Regulatory Con-

mission. NUREGLCR. 4233. 79 pp.

i Dahlberg, M. D. and E. P. Odum,1970. Annual cycles of species occurrence, "

abundance and diversity in Georgia estuarine fish populations. Am. Midl. i Nat. 83: 382-392.

DI4o, 1976. Annual Environmental Report, Non-radiological Volume $1.

i Duquesne Light. Company, Beaver Valley Power -Station. 132 pp.

d DIco, 1977. Annual Environa.antal Repert, Non-radiological Volume $1. {'

, Duquesne Light Company, Beaver Valley Power Station. 123 pp.

i DLCo, 1979. Annual Environmental Report, Non-radiological Volume $1.

j Duquesne Light Company, Beaver Valley Power Station. 149 pp. i

DIco , 1980. Annual Environmental Report, Non-radiological. Duquesne Light j Company, Beaver Valley Power Station, Unit No.1.160 pp. *

(' l DLCo, 1981. Annual Environmental Report, Non-radiological. Duquesne Light Company, Beaver Valley Power Station, Unit No.1. 105 pp. + Appendices. !

DIco, 1982. Annual Environmental Report, Non-radiological. Duquesne Light l Company, Beaver Valley Power Station, Unit No.1. 126 pp. L i

DIco, 1983. Annual Environmental Report, Non-radiological. Duquesne Light i Company, Beaver Valley Power Station, Unit No.1. 124 pp. + Appendix.

! DIco, 198 4. Annual Environmental Report, Non-radiological. Duquesne Light Company, Beaver Valley Power Station, Unit No.1. 139 pp.

i DLCo, 1985. Annual Environmental Report, Non-radiological. Duquesne Light ;

Company, Beaver Valley Power Station, Unit No.1 & 2. 106 pp. '

DZ4o, 1986. Annual Environmental Report, Non-radiologi al. Duquesne Light Company, Beaver Valley Power Station, Unit No. 1 & 2. 152 pp. [

i EPA, 1973. Biological field and laboratory methods. EPA-670/4-73-001. l J Cincinnati, OH. '

! L

) Hanutill, Vincent J., Jr. (Commercial Diver) personal communication, November f i 15, 1987. t Hutchinson, G. E., 1967. A treatise on limnology. Vol. 2, Introduction to lake biology and the limnoplankton. John Wiley and Sons, Inc., New York. 1115 pp.

M i

l t

144 '

Hynes, H. B. N., 1970. The ecology of running waters. Univ. Toronto Press, Toronto.

Jenkins, Harold and Frank Logar, (Dfro Operations Porsonnel, BVPS) personal communication, January 10, 1986.

NRC, IE Bulletin 81-03: Flow Blockage of Cooling Water to Gafety System Components by Corbicula sp. (Asiatic Clam) and Mytilus sp. (Mu ssel) .

Pielou, E. C., 1969. An introduction to mathematical ecology. Wiley Interscience, Wiley & Sons, New York, NY.

Robins, C. R. , R. M. Bailey, C. E. Bond, J. R. Brooker , E. A. Lachner , R. N.

Lea, and W. B. Scott, 1980. A list of common and scientific names of fishes from the United States and Canada (Fourth edition) .

Amer. Fish. Sco. Spec. Publ. No. 12:1-174.

Scott, W. B. and E. J. Crossman,1973. Freshwater fishes of Canada.

Fisheries Research Bd. Canada. Bulletin 184. 966 p.

Winner, J. M., 1975. Zooplankton. n

_I_n_: B. A. Whitton, ed. River ecology.

Univ. Calif. Press, Berkeley and Los Angeles. pp. 155-169.

l l

l 1

i 145

- _ _ _ - _ _ _ _ _ _ _ _ _

ML20153H636

Contents

Text

SUMMARY

SUMMARY

SUMMARY

SUMMARY

SUMMARY

SUMMARY

SUMMARY

SUMMARY

SUMMARY

SUMMARY

SUMMARY

Navigation menu

ML20153H636

Text

SUMMARY

SUMMARY

SUMMARY

SUMMARY

SUMMARY

SUMMARY

SUMMARY

SUMMARY

SUMMARY

SUMMARY

SUMMARY

Navigation menu

Search