PORTLAND GENERAL ELECTRIC JANUARY, 1993

p 

r::O- HV

PROGRESS REPORT

FOR 1991 - 1992

y

f\ le/V

EV ALVA TION OF THE DOWNSTREAM MIGRANT

BYPASS SYSTEM' - T. W. SULLIVAN PLANT

WILLAMETTE FALLS

DONALD E. CLARK

DOUGLAS P. CRAMER
EVALUATION OF THE DOWNSTREAM MIGRANT BYPASS SYSTEM

T . W . SULLIVAN PLANT, WEST LINN

Progress Report for 1991-92

PGE T. W. Sullivan Plant is located on the Willamette River at

Willamette Falls in West Linn (RM 26. 6). PGE has been working on

installing, testing and improving a downstream migrant bypass

system since 1971. Although significant changes have been made to

improve bypass efficiency and to decrease injury (principally descaling) no evaluation tests have been conducted since 1982.

From 1983 through 1991 the Sullivan plant was shutdown six to eight

weeks each year during the peak of downstream migrations to protect

fish. The installation of a new bypass conduit and associated flow control structures and fish trapping and handling facilities

(referred to as the evaluator) in 1991 made it possible to resume

the evaluation.

A formal study plan for" evaluating the T. W. Sullivan Bypass was

adopted by the agencies and PGE in November of 1991. Some of the

major objectives of the study are to: 1) determine the bypass eff iciency under normal operation (2) determine the source and

extent of injury to fish that use the bypass (3) determine the

mortality of injured and non- injured fish within 96 hours after

they have passed through the bypass and (4) determine the relati ve abundance and timing of migrants at the Sullivan Plant.

The overall performance of the Sullivan system is dependent on two

maj or areas , the guidance portion and the bypass. The guidance

portion is made up of a training wall and the trashracks in the

forebay that act as a louver system to guide the fish through the

forebay to unit 13. unit 13 acts as the actual bypass as the

entire penstock is screened with an Eicher pressure screen and all

of the fish are diverted through a conduit into the evaluator where

they can be captured or passed directly to the tailrace.

Several changes have been made since the last tests were conducted in 1982. In the guidance portion there were two changes. 1) A set of leaf gates that separated unit 13 from the other units was removed. These gates caused a change in the flow pattern that was

believed to increase the loss of fish. 2) The trashracks in front

of Unit 13 were realigned to a vertical position and they were

changed from flat bar on two inch centers to round bar on five inch

centers to improve movement into the unit and reduce the chance for injury. In the bypass portion , in the penstock , metal plates were

added to make the penstock a more uniform size to reduce turbulence

and the entire penstock was cleaned and epoxy appl ied to reduce

rough surfaces.

Initial tests with the new evaluator were conducted in the fall of

1991 to coincide with hatchery releases of spring chinook. The

fish showed up on November 18 in large of numbers (12 000 a day).
A single guidance efficiency test was run beginning on November 19.

There was a high flow event (went from 26 000 to 50 000 cfs) on

November 21 which flushed most of the fish from the river so no

further tests were conducted. Fish were examined for injury and

descaling but no control groups were released for comparison.

Tests were resumed in March of 1992 to coincide with the release of

hatchery chinook. Unusually low flows , which persisted through the 

spring, resulted in extremely high counts of fish , up to 90 000 a

day, through the evaluator. Water temperatures reached 70 degrees by the first week in June. Guidance efficiency tests were 

attempted on three occasions. One for spring chinook was aborted

when we discovered a improperly placed screen in the holding tank

allowing fish to escape. A steelhead test was aborted when too

many fall chinook showed up and a fall chinook test was run with

highly stressed fish (38% overnight mortality in 70 degree water) 

Some groups of fish were held for 120 hour mortality tests and run of the river fish were classified for injury and descaling. We

were unable to complete any injury tests.

At the conclusion of the spring migration it became apparent that

we would not be able to conduct reliable tests using the same procedures. The main problems were: 1) having too many fish to

process, increasing the potential of missing marked fish and

harming non-test fish; 2) the limited number of fin mark

combinations reducing the number of tests that can be conducted at

one time; and 3) the extended length of time it takes fish to move

through the system.

After consulting with agency representatives PGE decided to use a

PIT (Passive Integrated Transponder) tag system. The advantages of

this system are: 1) fish do not have to be anesthetized and

handled for interrogation (identification); 2) we will not be

limited by large numbers of fish; 3) we can run multiple tests at

one time; 4) our ability to sample will not be affected by

extended fish ~assage time and 5) we can minimize errors associated with fish marking, mark identification and data transcription.

The PIT Tag system was installed the end of October. with the

evaluator in the fishing position 100% of the juvenile fish pass

through the tag interrogation system. To test the system five fish

were tagged and passed through the interrogation tube a total of 87 times. Only two tags were missed resulting in a 97. 7 % detection

rate.

Hatchery spring chinook released begining November 9 , 1992 began

showing up in numbers at Sullivan on the 16th. We were able to

conduct a single guidance efficiency test using the PIT tag system

and run of the river fish were examined for injury and descaling.

The flow at Salem went form 15 000 on the 15th to 46 000 on the

23rd flushing most of the fish from the river.
RESULTS

Guidance Efficiency

Spring Chinook

Two guidance efficiency tests were completed. Both tests were

for hatchery spring chinook at high forebay conditions. One test

was with the partial fin mark method, the other was w~th the PIT

tag system. In both cases groups of fish were released from the

middle and at either end of the headracks. The fin mark test

indicated an average efficiency of 81. 9% while the PIT tag test

efficiency averaged 93. 8% (Table 1). There was no significant

difference in the guidance efficiencies (X2 =1. 75, P= . 45, wi tp 2 df)

between the different release locations.

TABLE 1. Sullivan guidance efficiency test for spring chinook.

Fin mark test began 11/18/91 with a forebay elevation of 54.

The PIT tag test began 11/18/92, forebay elevation 53.

C~~-"~.'W" ,~.~",.,=-,~".~'~'.~~L.~'.

.... ,,,.__._,,._,,,,,.,,,,_..__._..,,._..,.

Left bank

Middle

Ri ght bank

Fin Mark # released % recap 210 76. 210 87. 210 81. 4

PIT Tag

# released

207

205

204

% recap

91. 7

95.

94.

_..__...__..,,._,,.__...._.._......_.._..

The average size of the chinook used in the 1991 and 1992 tests

were 178mm and 195mm respectively. There was no difference in

the size of fish released and the size of fish recaptured.

Steelhead

A single guidance efficiency test was attempted for steelhead,

wi th low forebay conditions, beginning April 27, 1992. We knew

there was only a short window for the test due to the numbers of

f ish expected. Also due to the large size of the smol ts we were

reluctant to hold groups of 200 in each tank. We used wild fish

for one of the three groups. The test was aborted after 48 hours

when large numbers of fall chinook made it impossible to examin~ all fish. We did continue to capture marked test fish in our

normal sampling up to 10 days later. Although this was 

incomplete test we recaptured 77. 9% of the wild smol ts and 58.

of the hatchery smol ts .

Fall Chinook

A single low forebay test was conducted beginning June 4. The

water temperature was 70 and the three groups averaged 38%

prerelease mortality. The fish were released in poor condition.

Recapture rates ranged from 43. 7% to 56. 9%.
calin~ and In jury

We were unable to complete any injury tests due to the large

number of fish in the bypass. However, run of the river fish

were examined for injury and descaling (Table 2). There were no

control groups. A comparison of ratings given to the fish

between the three diff erent work crews showed they were very

similar, indi~ating the criteria were being applied consistently.

Table 2. Summary of run of the river smol ts classified as

descaled or injured at the Sullivan bypass evaluator from monthly

totals in 1991 and 1992.

~-~-_. _"L~~.

_ ,,

'.""'L,_,_.-,, -,~,,,~,,__'_'N'" .8_'."'.-' ._.~.

. _._..__..... ,.. ..._.._.

Hatch sp chin

Wild sp chin

Hatch steelhead

Wild steelhead

Coho

Fall chin

1. 63 - 4.

52 - 9.

L15

1. 41

f!. :1$ ined

278, 594

368

4 J 001

610

144

........,_.. ...........

... "'L~r..~ ,-"",

,,,_._.,

_'_"'L~ .

...,,_.,,_._.,,,....  .

~"~,,~._.u~_..-~,.~"_'~"'L"'L "'L~.. .~N ",=_.~,"N""',

Dela ed Mortali t

Delayed mortality tests were conducted on hatchery spring chinook

and hatchery steelhead. Due to limited holding space, tests were

limited to five groups of approximately 50 fish each. Three

additional tanks are available for 1993. Steelhead classified as

descaled had to be collected over several days because they were

so few in number and ,some were actually held for more than 96

hours.

Table 3. Ninety six hour mortality for groups of hatchery spring

chinook and steelhead captured in the Sullivan bypass evaluator

in 1992.

.  .... 

"N".'_-'--'~~~~- -,- 

....... 

--.-= ,...n.,_.

 ...,._,,,..__. 

- ~N'__- "N.~N',

total total total group

groups fish dead mortal i ty range

Stlhd

Desc

Chin

100

Desc 351 27.

Inj 23.

..... 

-"----_.'-._~L- -. -_.._.-n-- _,_.__n.,._- ._.--~.._~_._---_._,__"'_NN"'_'

Abundance and T imin

Abundance and timing of juveniles at Willamette Falls were

calculated for each species and by hatchery and wild where

appropriate for each half month. To make the estimates, the
Wild

Stlhd

Hatch

Stlhd

Fall

Chin

numbers of fish counted at the evaluator for each sampling day

were expanded to account for the percent of the flow entering the Sullivan forebay. We used the Salem flow, assumed the plant uses

000 cfs when all units are on and subtracted 450 cfs for each unit when off. A f~nal expansion was made to account for the

percent of each half month period that was actually sampled.

Actual numbers of fish at the falls will be underestimated by

using Salem flow because it does not account for inflow between

Salem and the falls. Further, we did not use any expansion to

account for bypass efficiencies which will also result in under

estimating numbers of fish, but estimates of relative abundance

should be good.

Table 4. Relative abundance and timing of juvenile downstream

migrant salmonids determined from sampling at the Sullivan

evaluator in 1992. Numbers are percent of yearly total.

..

,"n.w". ..

..... _..._.. 

..,~.w .., ~.

._,,_..... ._, _._.. . ....., _.._..

.u.

,_...__... . .. .......... ......... __..

Wild Hatch

Sp Chin Sp chin

Jan 

Feb 1

23.

Mar 1 25. 25.

15. 35.

Apr 1 13.

....

May 1

Jun 1

Jul

Aug 1

Sep 1

Oct 1

Nov 1

24.

Dec 1

Coho

1. 0

17.

23. 29. 11. 8

39. 59. 45. 74.

15. 34. 13.

,_...__.._._,_.._.__._.

_.- __._.NW_~.,'__'_.N' 

.  _. 
APPENDIX
Discovered tank divider out of position at 9 pm on 4/14

Forebay elev. - 52. 2 to 52. 4 ft.

SULTABI

FOREBAY GUIDANCE TEST , HATCHERY SPRING CHINOOK, NOVEMBER 

through 22, 1991.

RELEASE RECAPTURE DATE

MARK LOCATION NUMBER NOV 19 NOV 20 NOV 21

EAST 210 148

WEST 210 153

MIDDLE 210 166

RELEASE RECAPTURE

MARK NUMB. MEAN mm S. D. NUMB. MEAN mm S. D.

105 178. 171 1'7 8 . 7 10. 81.4

150 178. 10. 161 179 10. 76.

100 177. 10. 182 178. 10. 87.

Forebay elev. - 54. 9 to 55. 6 ft.

Tailrace elev. - 9. 8 ft.

Size range - 135 to 210 rom.

FORE BAY GUIDANCE TEST , HATCHERY SPRING CHINOOK, APRIL 14 through

, 1992.

RELEASE RECAPTURE DATE

MARK LOC. 4/14 4/15 4/16 4/17 4/18 4/22 4/24

EAST 208

WEST 199

MID 210

RELEASE RECAPTURE

MARK NUMB. MEAN mm S. D. NUMB. MEAN mm S. D.

152. 24. 157. 24.

155. 22. 147. 20.

153. 21. 6 149.
FOREBAY GUIDANCE TEST, HATCHERY SPRING CHINOOK , NOVEMBER 18

through 23, 1992.

RELEASE RECAPTURE DATE

MARK LOC. 11/18 11/19 11/20 11/21 11/22 11/23

PIT EAST 204 171

PIT WEST 207 165

PIT MID 205 178

RELEASE RECAPTURE

MARK NUMB. MEAN mm S. D. NUMB. MEAN mm S. D.

PIT 204 195 193 195 94.

PIT 207 193 190 193 91. 7

PIT 205 195 195 195 95.

Forebay elev. - 53. 6 to 54. 0 ft.

Screen was cleaned 11 times between noon on the 19th and noon on

the 2 3rd.

Size range - 154 to 238 mm.

SULTAB2
FOREBAY GUIDANCE TEST, WILD (RP) and HATCHERY (LC , UC) STEELHEAD

APRIL 27 through MAY 9 , 1992.

RELEASE RECAPTURE DATE

149

150

202

RELEASE RECAPTURE

MARK NUMB. MEAN mm ~. D. NUMB. MEAN mm S. D.

202. 24. 116 202. 28. 77.

223. 15. 214. 22. 56.

208. 21. 9 123 210 22. 60.

Forebay elev. - 50. 6 to 52.

We had to discontinue the test at 5: 30 pm on the 29th due to the

large number of fall chinook.

FOREBAY GUIDANCE TEST , FALL CHINOOK, JUNE 4 through JUNE 6, 1992.

RELEASE RECAPTURE DATE

MARK LOC. NUMB. 6/4 6/5 6/6

WEST 130

EAST 135

MID. 119

RELEASE RECAPTURE

MARK NUMB. MEAN mm S. D. NUMB. MEAN rom S. D.

100. 98.

96. 11. 2 97.

98. 97. 11. 4

Forebay elev. - 50. 4 to 50. 8 ft.

Chinook were held an extra day. High water temp. and high prerelease mortality.

SULTAB3
D&ISCI

Numbers and Percentage of Descaled and Injured Hatchery sprinq

Chinook in the Sullivan Plant Downstream Migrant Bypass System

November 18 , 1991 through April 11 , 1992.

DATE De- Injury Perscaled cent

NOV 91 15, 456 235 1. 86

DEC 91

JAN 92 266

FEB 92 181 1. 63

MAR 92 203 357 793 879

APR 92 085 450 242

TOTAL 256, 411 485 185

Numbers and Percentage of Descaled and Injured 

wild sprinq

chinook in the Sullivan Plant Downstream Migrant Bypass System,

November 18 , 1991 through April 11, 1992.

DATE De- Injury Perscaled cent

NOV 91 585

DEC 91 146

JAN 92 585

FEB 92 038

MAR 92 077 142

APR 92 379

TOTAL 810 289

December 31, 1992
D&ISCOF

Numbers and Percentage of Descaled and Injured Hatchery steelhead

in the Sullivan Plant Downstream Migrant Bypass System , April 7

through April 30, 1992.

DATE De- Injury Perscaled cent

APR 92 919

Numbers and Percentage of Descaled and Injured wild steelhead

the Sullivan Plant Downstream Migrant Bypass System April 7

through 30, 1992.

DATE De- Injury Perscaled cent

APR 92 603 1.15

Numbers and Percentage of Descaled and Injured Coho in the

Sullivan Plant Downstream Migrant Bypass System, April, 1992.

DATE De- Injury Perscaled cent

APR 92 1.41

Numbers and Percentage of Descaled and Injured Fall chinook

the Sullivan Plant Downstream Migrant Bypass System, May, 1992.

DATE De- Injury Perscaled cent

MAY 075

December 31, 1992
Numbers and Percentage of Descaled and Injured 

Hatchery Sprinq

Chinook in the Sullivan Plant Downstream Migrant Bypass System,

November , 1992.

Date De- Injury Perscaled cent

NOV 92 12, 868 602

Numbers and Percentage of Descaled and Injured 

wild Sprinq

Chinook in the sullivan Plant Downstream Migrant Bypass System,

November, 1992.

DATE De- Injury Perscaled cent

NOV 92 191

December 31, 1992

D&ISC2
DELAYED MORTALITY TESTS - SULLIVAN PLANT DOWNSTREAM MIGRANT FISH

BYPASS SYSTEM - 1992.

HATCHERY SPRING CHINOOK - March 20 through 25 - Water temp. 54 F

TANK NUMBER CONDITION NUMBER OF FISH NUMBER DEAD

ONE DESCALED

TWO DESCALED

THREE DESCALED

FOUR DESCALED

FIVE INJURED

HATCHERY SPRING CHINOOK - March 25 through 31 - Water temp. 55 F

TANK NUMBER CONDITION NUMBER OF FISH NUMBER DEAD

ONE

TWO

THREE DESCALED

FOUR DESCALED

FIVE DESCALED

HATCHERY STEELHEAD - May 14 through 18 - Water temp. 61 F

TANK NUMBER CONDITION NUMBER OF FISH NUMBER DEAD

FOUR

FIVE DESCALED

SULTAB6
Sullivan Monitoring January 1992

. Q-~

117:

.. 

-.J

1/6

1/7

liB

1/9

1/10

~ I j",

., 

1/ 1~

In5

1/16

1/17

1/18

I?',

.. 

1/21

1'1'1 1. 

1/23

1/24

, I"r L i.J

1/27

1/28

1/29

1/30

1/31

Fl DII

Sale!!

16000

22000

20000

19000

19000

16500

23500

21900

2C~OOO

2(\(11)0

20C'OC\

18300

15300

14000

14000

12000

12000

13901)

14700

20700

31300

3130(\

29000

Forebay Ur, i ts

E! ev Off

52.

53.

53.

52.

52.

52.

....j, 4

53.

r"l .,

. ..

5L7

52.

54.

Hours

FishiO'd Tim!!

5 830-1330

8 8-4

9 16-24

16 8-24

14 0-14

16 8-24

8-24

14 0-14

19 5-24

B 0-8

16 8-24

8 0-8

19 5-24

Wild

S chin

144

202

Hatch

S chi n

Wild

Stl hd

Hatch

Stl hd Fry

165

2t- 130

50!,

.:.

108

173

144 140

Sullivan Monitoring February 1992

Flaw Forebay Hours Wi 1 d Hatch Wi 11 Hatch

Uate Salem E!ev Fis~ed Till!! chin 5 chin Stl hd Stlhd Fry

2/1 27300 0-8

2/3 24000 5 5-1430 -.J

2/5 17000 10-24

2/6 14900 0-12

2/10 12000 14. 930-24

2/11 12000 0-2~

2/12 11400 0-6

2/17 10600 5-24

2-18 11000 0-5 \ 16-24

2-19 18000 115

2-20 41000 196

.

2-21 60000 18 0-6, 12-24 108

2-22 57000 0-8

2-24 49000 5-24 117

2-25 37000 330

2-26 37000 321

2-27 29100 367 

.:..

2-28 20500 182

2-29 19000 0-8
SuI1 i va~ Mo~i tori ng ~arch 1992

at'!

Flow

Sale!!

15000

14C\OO

13500

13500

13500

14500

. ..,

:-9 1.1')1~1~

;-10 13000

11300

10300

9300

9700

9500

940('

9400

9700

9300

8700

;-1 !

,-14

~-20

~-2!

)-23

~-24

8500

8300

3-25 BOOO

8000

7800

7100

7500

7400

3-26

3-27

3-28

3-30

3-31

ForeDa'(

El ev

51.5

51.5

51.6

51.6

c"'" .J-,

51. 9

0::;1 ' w. ...1

C:i ~

,. 

C:t

50,

50.

50.

50,

50.

50.

50.

50.

50.

50.

50.

50,

50.

u~ its

Off

Hours

Fished Ti!:!e

19 5-2d

B 0-8

16 8-24

B 1)-8

16 8-24

8 0-8

16 8-24

B 1)-8

16 8-24

8 0-8

16 8-24

B 1)-8

16 8-24

8 0-8

16 8-24

8 1)-8

16 8-24

8 0-8

Wild

S chin

254

Hatch

S chi r.

378

1321

15601

40020

227

128

116

50!

1089

1 c: ~ 1 .o.J.. 38743

34432

277 44

1114

717

185

454

210

445

225

6901

15750

84bS

\Q," .. w't"

9279

16372

9171

259

155

234

195

15821

8082

"~f /.w' 39171

11061

25086

9000

12634

116

193

120

118

bCl 418t.

Wi 10

Stl hd

Hatch

Stlhd

1 I)

Coho
Sullivan Monitoring April 1992

)at!:!

~-3

~-b

~-B

~-9

4-13

HI,

4-15

4-16

4-20

4-21

4-22

4-23

4-24

4-25

4-29

4-30

Flew

Salem

7500

7500

7200

7200

HOO

7400

7600

7600

15(\00

37000

29000

27000

23600

2100')

1B~!OO

27000

?Qr.!,,1 .' . ,1-

23000

21000

19500

17000

15800

11400

11000

Forebay

Elev

50.

50.

51. 2

51. 6

53.

, ,.,

.J-I..:.

53.

52,

52.

52. ~

~7 

.J.;. !.l

, 

-J. W

52.

 

.I.:.."

50.

50.

Uni ts Hour s

Off Fished Time

16 8-24

8 0-8

.....

.Ji.

r;,., w':'

16 8-24

8 0-8

16 8-24

B 0-8

16 8-24

B 0-8

16 8-24

B 0-8

16 8-24

8 0-8

16 8-24

8 0-8

16 B-24

8 0-8

16 8-24

B 0-8

14 8-16\ 18-1)

Wi ld

S chin

210

107

174

Hatch

S ch i n

256701

5967

20&00

3038

181 11455

4360

2771)

992

145 6443

HOD

'to

,,,

-Ii.

161

Wi 10

Stl hd

110

134

532

402

122

110

392

120

Q"'(" w-.J,

686

674

682

732

278

..

.J.J

.J.

238

1591

Hatch

Stlhd

138

150

180

110' .Jt;

242 228

123 213

134 491

151

b44

335

20(;4

I~'?

.

17174

Coho

r;or

162

199

1"1j . i .

Fal I

chin

1 !)2

.:.

Tr; -.Jw 106

368

103

324

456

2t 9

181

128

.J1f

202

112

112

388

6122

30187
S~llivan Monitoring May 1992

Dat'e

5-1

t:_

5-4

5-5

5-b

5-7

5-B

5-~'

5-11

5-12

1:::

5-14

5-15

5-16

5-18

5-19

5-20

5-21

5-22

5-23

5-25

5-26

5-27

5-28

5-29

5-30

Date

6-1

6-2

6-3

6-4

6-B

6-9

6-10

6-11

6-12

6-13

6-15

6-17 1 B

6-19

6-29-3('

FlDW Forebay

Sa! em El 'eV

15000 51.6

12400

10800

1280C'

12000

12006

12000

12000

8900

8900

7300

7300

7200

7200

7200

7200

6500

6500

6400

6400

6200

6 21)()

50.

50.

50. 9

50,

51.

51. 6

50.

50.

50.

50.

50.

50.

50.

50.,

50.

50.

50.

50.

50.

50.

t:li t: .:I'

.....

50.

50.

Uni ts

OFF

Hour 5

Fi shed Ti 

8 0-8

16 8-24

8 0-8

16 8-24

8 0-8

16 8-24

8 0-8

16 8-24

8 0-8

16 8-2~

8 0-8

16 8-24

8 0-8

16 3-24

!! 0-8

16 8-24

8 1)-8

16 8-24

8 0-8

16 8-24

8 0-8

16 8-24

8 0-8

16 8-24

8 0-8

S~llivan ~onitoring June 1992

Flow

Salem

620CI

6200

6000

6000

5900

5900

5900

5900

5900

5900

6700

6300

6087

7000

Forebay

Elev

50.

50.

50.

50.

50.

50.

50.

Uni ts

Off

S' \ 4

50.

50.

52.

51.

51.

Hour s

Fi ShEd Ti 

14 10-24

8 0-8

B 16-24

8 1)-8

16 8-24

8 0-8

16 8-24

8 0-8

16 8-24

0-8

24 8-8

24 8-8

24 8-8

24 7-7

Wild

5 chi~

Wild

5 chin

Hatch

S chi n

')1

"1"

../.,.)

1 !)

593

Hatch

S chi n

Units 2 9 off on 20th and 21st whol~ plant down 10 am 2200 to

5:30 pm en 25th. Unit 9 off through 30.

Wi ld

Stl hd

1437

414

HI)

116

.I.

53.1

310

428

324

276

.18

136

')Q"I

.../

178

273

1('2

334

161

590

.14

228

281

110

262

208

.174

132

2.1

313 7890

Wi Id

Stl hd

Hatch

Stl hd

15178

3682

3062

1319

4622

2134

2632

1604

1332

704

1191

808

982

1335

775

1775

1061

712

340

808

182

366

48.133

Hatch

Stlhd

.:J

Coho

199

240

2439

1010

434

231

250

10247

197

210

.12

7"1

.:J.,j

i 1 1

Fa1l

chin

14516

4556

54855

21391

69321

14048

50040

231

267

14988

30659

12164

33038

322 21128

20747

5946

19111

162

290

687

968 2677

504 4963

791

676

354

156

182

2056

9707

1884

6368

2884

12040

3106

253 7802

1 b80

441678

Coho

145

Fall

chi n Other

b061

3110

2318

1438

1606

368

1572

334

688

786

886

2177

457

40 2 sturge
SuI I i van w . "enldJrlng Jul' 1992

Flew' Fereb:lY Uni ts Heurs Wi 1 d Hatch Wi Id Hatch

)ate Sal em Elev Off Fi shed Ti!ll2 chin chin Stl ho Stlhd Coho

T- 6700 no- 730

7-14 6100 52. 730-730

';0\ ';o? 5500 51. 9 730-730

,

'1P. '1Q 5700 52. 730-730

. ~w,~.

Fal i

chi n Other

85 ! ' sbrg2D

62 2 sturgeo

I) !any sha d

Sullivan Monitoring August 1992

Flow For ebay Uni ts Hour 5 Wi Ie Hatch Wi Id Hatch Fall

nate Salem Elev Off Fi shed Tille chi;, Stlhc Stlhd CChD chi n Other Cilln

8-12, 5700 51.6 '1 Q 730-730 120

~I'

?r1 '11 5600 52. 73- - 730 , 1~'

,,

?e: '1.. bOOC' 52.

....

830-830 !5C'O shad

8-31, 9-1 5900 52. 730-730 211 2000 shad

Sullivan Monitoring September 1992

Date

9-8,

9-17

9-29-30

Flow Forebay Units

Sal e~ EI 2V Of f

5900 " 52.

6000 52, 4 6 6900 52 none

Hours

Fished Time

24 730-730

24 731)-730

24 730-730

Wi ld Hatch Wi ld

chin chi n Stl hd

H:t:h

Stl he

Fsll

Coho chi r: Other

350 5r:~d

10('tO shad

~lI)OO sha

Sullivan Monitoring October 1992

Fioli F()r!?b~y Uni ts HDlJfS

Date Sal em EI e" Off Fi shed Time

10-6 J 7 7800 none 730-730

10-15 6700 r.,

.J':' none 730-730

PJi I d

I; h" w C..

Hatch

S chin

Wild

Stl hrl

Hatch

Stlhd Coho

Fall

chi n Other

15C\00 sha

108
S~lliv~~ HDnitori~g N~ve~ber 1992

"te

1-13

1-14

1-18

1-19

1-20-

1-21

:-22

1-25

! -26

!!:!

FIJ:-I

5al em

15500

1 bOOO

15000

14600

13700

14000

16&00

18100

26600

38'!'OCi

32200

26000

26701)

Forebay

Elev

Units

Off

53. none

53. 8 f'.one

53, ~O!l2

none

Hour 5

Fi shed Ti!!e

16 8-24

8 0-8

16 8-24

8 0-12

16 8-24

8 0-8

.6 18- 24

8 0-8

6 8-14

16 8-24

8 0-8

16 8-24

8 0-8

Sullivan ~o!1itJring llecember 1992

'ate

2-10

 ,).  ,.. )?? ,?(

2-29 J 30

Flow

Sal e~

42000

29000

40000

44000

Forebay

El elf

53. B

53. .6 !1c~e

none

". 7

53.

nM" "~,,c:

non,

!lone

"i' c: ~..J !lone

54.

53,

rEJr:e

n:-ne

C:, "','.J none

Units

O';f

1., 4

53.

54.

54.

Hour s

Fished TimE

6 8-14

24 8-8

24 8-8

;..s, P- ~, u w

Wild

S chi n

Wi ld

5 chin

Hat ch

5 chin

1c:,)

.

231

107

15767

7203

18763

5271)

3954

5001

2042

2t.

Hatch

5 chi r:

Wild

Stlhd

Wild

Stl hd

Ha tch

5tl bd

Hatch

Stl h~

Coho

Coho

Fall

chin Other

Fall

~h; n

. ..

Dt!'.er

100 fry

?;"lii f~"

 ..,

200 fry

200 fry
FISH COUNTED THE gULL! VAN EVALUATOR ! 992

HOURS

PEF: 1 OD SAMPLED WSCH I N HSCHIN WSTHD HSTHD COHO FCHIN

J AN 1-15 116

16- 31 291 600 226

FEB 1-15 11 I) .J.J

16..29 229 1947 151

MAR 1-15 243 5999 1652dl

16-31 168 3054 203523 190

APF: 1-15 184 1147 84925 2423 250 459 474

16-30 166 392 1988 2728 21772 1002 3811!)

MAY 1-15 168 440 189 C; 1 t:" ~. oJu 39250 5186 36i451

16-31 152 153 12'~ 2734 8883 5061 80227

JUN 1-15 134 ,71 -.J. 659 438 19167

16--30 2674

JUL 1-15 147

16-31 .J"

AUG 1-15 120

-31 i':' :'54

SE? 1-15

16-31

OCT 1-16 130

17-31 259

NO\! 1-15 504 58089

16-30 li6

DEC 1-15

16-31

TnT "1 2468 14541 515429 13734 70930 12189 502401

. ,

r::c:~ T ~1l!Tr::!\ NUMBER FISH I'! I LLAMETTE I:" l\ \ I C; _",1""",- I "--~

EXPANDED ACCOUNT FOR F L DL'! AND TIME SAMPLED

HOURS

PER I aD DAYS SAMPLED WSCHIN HSCHIN \'JSTHD HSTHD COHO FCHIN

JAN 1-15 116 425 692

16- 31 291 4467 1609

FEB 1 _ 1 1:; 1684 521 .."OJ

16-29 229 ,n"'! 106 .::, i ,)0,

MAR 1-15 1 '" 243 20876 558A.70

oJ.

16-31 168 12279 78i7' 925 709

APR 1-15 1 t:" 184 5658 295642 12397 2450 2708 4518

L oJ

16-30 166 2667 17664 16942 114612 6957 190997

MAY 1-15 168 2357 990 28836 226971 26775 1845827

16-31 152 609 500 11 080 36205 20650 328565

JUN 1-15 134 277 1480 2794 1811 79017

16.- 3 (I 165 575 445 150 16775

JUL 1-15 113

),

_-.J 1425

16-31 112 280

AUG 1-15 2055

b2213

SEP 1-15 825

16-31 744

OCT 1-16 1776

17- ' 1 1665

. 

oJ.

NOll 1-15 525 12195

16-30 116 6257 549903

DEe 1-15 3000 480

16-31

TOTAL 2540 81452 2237350 72220 383673 59127 24&.9459
FIS H BY- PA5S 

EVALUATOR e,

..

.. .

0.' :

Sc.REEN

--DISCHARGE

. 

CONTRoL GATE. I

, .

r;".. ~

~~o

to!

;

.. 

., 

0 .

FORE BAY

TRASH

RACKS

w,eKE\ GATES

PENSTOC K

BAR SCREEN

P.G.E. Co. SULLIVAN FISH FACILITIES
FORE. BAY BY-PASS? GUIDANCE PORT ION FLOW 

PENSTOCK SCREEN-+

UNITS 1- FISH BY- PASS " EVALUATO

. 

P. G. E. CO.

T. W. SULLIVAN PLANT

TAILRACE
PORTLAND GENERAL ELECTRIC

T. W. SULLIVAN PLANT

Evaluation of the Downstream Migrant Bypass System

Progress Report , Fall 1991

Installation of the evaluator in the flow line of turbine

number 13 at the Sullivan Plant was completed by November 1 1991.

During the week of November 11 , 1991 the Oregon Department 

Fish and wildlife (ODFW) released 800 000 spring chinook smol 

from their hatcheries above Willamette Falls. The fish averaged

7 to 8 inches in length.

Initially our objectives were to; (1) gain operating

experience with the new evaluator (2) examine smol ts using the

bypass for excessive injury or descaling (3) train personnel in

facility operation and fish identification and (4) begin various

tests as outlined in the study plan.

When the screen in the penstock of unit # 13 is in the

bypass or fishing position the evaluator has 2 different modes 

operation. One is to directly pass fish (bypass) from the

turbine screen to the tailrace. The other mode is to intercept

fish from the turbine screen for examination before they enter the tailrace.

We began examining fish for descaling and injury on November

, 1991. To date we have examined 16 032 hatchery and 752 wild

spring chinook smolts. The level of descaling and injury for

hatchery fish was 1. 8% and 5. 5% for wild fish. How these percentages relate to mortalities has not been determined. If they

directly relate to mortality then the wild fish percentage is

above the 3. 0% mortality level identified in the 1980 agreement

between PGE and ODFW.

On November 19 , 1991 we marked and released hatchery spring

chinook at the beginning of the Sullivan forebay. This test was

to determine the percentage of fish entering the forebay which

are guided past units # 1 through 12 and enter unit # 13 bypass.

The percentage guidance ranged between 77. 4 and 87. 1%.

We monitored fish using the bypass system from November 18

through December 13, 1991. Most of the fish used the bypass

during the first five days. Our last 24 hr. monitoring period

(Dec. 12) had only 34 fish (both wild and hatchery) 

During the period of November 12 through December 13 , 1991

the Willamette River flow as measured at Salem ranged between

700 cubic feet per second (cfs) to 72 000 cfs. The Sullivan

Plant has a hydraulic capacity of 000 cfs. with all 13 units operating. All units were operating during this period.

Starting the first part of January we will continue to

moni tor the bypass system to determine timing, numbers and

species of fish using the system. This is one of the objectives

of our study plan.

DECEMBER 31, 1991
PORTLAND GENERAL ELECTRIC

T. W. SULLIVAN PLANT

Evaluation of the Downstream Migrant Bypass System

Progress Report JANUARY, 1992

The unit # 13 fish bypass operated the entire month. The

bypass was in the fishing mode for a total of 407 hours

distributed over 23 days. The Willamette River flow , as measured

at Salem , ranged between 12, 000 and 31, 300 cfs. During this period (407 hrs. ) we collected;

* 635

* 282

* 1

* 1

* 1, 690

wild spring chinook

hatchery spring chinook

wild steelhead

hatchery steelhead

fry

The majority of the fish (spring chinook) were collected the

last four days of the month when the highest flows in the river

occurred. The descaling and injury rate for both wild and

hatchery spring chinook was below one per cent for the month.

Only two fry were dead. We will continue to collect this

information to determine fish numbers , timing and species present

in the Sullivan forebay during the year.

SULLPROG
* 2, 057

* 184

* 16

* 4

* 233

wild spring chinook

hatchery spring chinook

wild steelhead

hatchery steelhead

fry

PORTLAND GENERAL ELECTRIC

T . W. SULLIVAN PLANT

Evaluation of the Downstream Migrant Bypass System

Progress Report , ~BRlJAJlY 1992

The unit # 13 fish bypass operated the entire month. The

bypass was in the fishing or monitoring mode for a total of 316

hours distributed over 19 days. The Willamette River flow , as

measured at Salem, ranged between 11, 000 and 60 000 cfs. River

water temperatures ranged between 44 and 51 degrees F. (ODFW data). During this period (316 hours) we collected;

Descaling and injury data was collected and appeared to be

similar to previous months observations. The Oregon Department of Fish and Wildlife (ODFW) has notified PGE that they will begin

releasing spring chinook smolts from their upriver hatcheries

beginning March 

March 17 1992

SULLPROG
PO TLAND GENERAL ELECTRIC

T. W. SULLIV AN PLANT

Evaluation of the Downstream Migrant Bypass system

Progress Report, l\fARCH ,1992

The unit # 13 fish bypass operated the entire month. The

bypass was in the fishing or monitoring mode partially or totally for 26 days. The Willamette River flow steadily declined, during

the month from 16, 500 cfs to 7, 400 cfs. River water temperatures

increased from 49 to 56 degrees F during the month.

On March 2 the ODFW began releasing spring chinook from their upriver hatcheries. These fish began using the Sullivan

Plant bypass system on March 7, early in the morning before

sunrise. The largest fish count occurred on March 10 when an

estimated 40, 020 spring chinook smol ts used the bypass system.

The counts remained strong through the rest of the month.

On March 20 and 25 we conducted delayed (120 hrs. ) mortality

tests with fish classified either as descaled or not descaled.

The descaled fish had a 8. 2 percent mortality and the not

descaled fish 0 percent. out of a total of 5, 404 wild and

193, 625 hatchery spring chinook 3. 3 percent, for both groups,

were classified as descaled or injured. This percentage (3. 3 %)

is not corrected for the condition of fish entering the Sullivan

Plant forebay.

Because of the unseasonably low flows in the river and

corresponding low forebay elevations unit #9 was shut down and

generation at the plant was reduced to maintain adequate flow

through the bypass.

During the month personnel from the Department of Fish and Wildlife , Oregon state University, were examining hatchery spring

chinook as part of a fish migration study. The project leader is

John Snelling.

April 9, 1992

SULPRG4
PO R TLAND GENERAL ELECTRIC

T. W. SULLIV AN PLANT

Evaluation of the Downstream Migrant Bypass System

Progress Report, April, 1992

The unit # 13 fish bypass operated the entire month. The

bypass was in the fishing or monitoring mode partially or totally for 24 days. The Willamette River flows ranged between 7 100 and

37, 000 cfs during the month. The daily average flow was 17, 227 cfs. River water temperatures ranged from 51 to 59 degrees 

On April 8 the ODFW began releasing approximately 790, 000

steelhead smolts from their upriver hatcheries. On April 27 the

ODFW began releasing approximately 7. 5 million fall chinook

smolts from their rearing pond near Salem. Hatchery steelhead

smolts did not start showing up in significant numbers in the

bypass until April 30. 

On April 13 we started a forebay bypass efficiency test with

hatchery spring chinook but after one day the test was terminated

when it was discovered that a screen in the collection box was

not positioned properly and test fish were not being recaptured.

On April 26 we began a forebay efficiency test with hatchery'

and wild groups of steelhead but had to terminate the test after

three days when the numbers of fall chinook using the bypass

increased which did not allow us to handle all of the fish which

is necessary in order to recapture our marked test fish.

May 11, 1992

SULPRGS
PORTLAND GENERAL ELECTRIC

T. W.SULLIV AN PLANT

Evaluation of the Downstream Migra~t Bypass System

Progress Report, ~ay, 1992

The unit # 13 fish bypass operated the entire month. The

bypass was in the fishing or monitoring mode partially or totally for 24 days. The Willamette River flows declined during the

month from 17, 200 to 6, 200 cfs. River water temperatures

increased from 57 to 69 degrees F. Because of the low flows at

the end of the month it was necessary to either reduce load on

all the units or to take one or more units off line in order to

maintain the necessary flow through the bypass system.

On May 14 we held 2 groups of hatchery steelhead for a 96

hour delayed mortality test. One group (49 fish) was classified

as descaled and the other group (52 fish) was classified as OK.

The descaled group had a 2% mortality and the OK group 0%.

On May 27' we examined 5, 582 fall chinook, 96 coho and 189

hatchery steelhead for descaling and injury rates. Those

descaling and injury rates were 2. 5% for fall chinook, 3% for

coho and 8% for hatchery steelhead. As mentioned in previous

monthly reports these ~escaling andinjury rates are not adjusted

for the condition of these fish before they enter the bypass

system.

Because of the large numbers of fish using the bypass system

we were unable to conduct any tests to determine bypass

efficiency, descaling or injury, and calibration.

June 9, 1992

SULPRG6
PORTLAND GENERAL ELECTRIC

T. W. SULLIVAN PLANT

Evaluation of the Downstream Migrant Bypass System

Progress Report, June, 1992

,

The unit # 13 fish bypass operated the entire month while the plant was running. As in previous months it was necessary to

reduce load on the units or to take one or more units off line in

order to maintain the necessary flow through the bypass system.

The plant was shutdown and the forebay dewatered from 0800 hrs.

on June 22 to 1800 hrs. on June 25. The Willamette River flows

as measured at Salem, ranged between 5, 700 and 7, 000 cfs. during the month. Water temperatures at the plant ranged between 69 and

74 degrees F.

On June 2 we marked three groups (600 total) of fall chinook

for a forebay guidance efficiency test. Water temperatures were

70 degrees F. We had a 38 % loss of test fish prior to releasing

them on June 4. Because of the high pre-release mortality and

warm water the test was terminated on June 

From June 8 till the end of the month we conducted seven 24

hour monitoring periods. Most of the fish counted during those

periods were fall chinook. Total numbers of fish per period

were;

2161

2021

1541

972

2346

496

July 8, 1992

SULPRG7

Fc: "5':~ :ePi' 

,

"'J~ C' :;!,~~,mr~ 'l'!X\~: ,~r 

~2F!!\~ i ~';Wf '. i,' 1i, If~. r&1 rime i' if!( ~,O;; ~~~'(1. r::l m(,(fiI~'I1'.i\:\I" f, 1:,;",~"";~ 'I:"" 0!,:I!.\:"'i\f ,.,7~'~"H, ,",H. 'l'..,.. j5!' 'J,; J~..,.&!JiJ \t't1"'-"'flL'" """'"'",""",-"""""",""",~~A.w., 

, ,

mro- ".

,...
PORTLAND GENERAL ELECTRIC

T. W. SULLIVAN PLANT

Evaluation of the Downstream Migrant Bypass System

Progress Report , JULY 1992

The unit # 13 fish bypass operated the entire month. As in

previous months it was necessary to reduce load on the units or

to take one or more units off line in order to maintain the

necessary flow through the bypass system. The Willamette River

flows , as measured at Salem, ranged between 4 500 and 6 700 cfs. during the month. Water temperatures at the Falls ranged between

70 and 76 degrees F. (ODFW data).

We conducted four 24 hour monitoring periods during the month. Most of the fish counted were fall chinook. Total

numbers of fish per period were;

104

August 12 , 1992

SULPRG8
120

212

PORTLAND GENERAL ELECTRIC

T. W. SULLIV AN PLANT

Evaluation of the Downstream Migrant Bypass System

Progress Report, AUGUST 1992 

The unit # 13 f ish bypass operated the entire month except

for two days August 3 and 4. As in previous months it was

necessary to reduce load on the units or to take one or more

units off line in order to maintain the necessary flow through the bypass system. The willamette River flows , as measured at

Salem, ranged between 5500 and 6000 cfs. Water temperatures at

the Falls ranged between 68 and 76 degrees F. (ODFW data) .

We conducted four 24 hour monitoring periods during the month. Most of the fish counted were chinook. Total numbers of

fish per period were;

September 2, 1992

SULPRG9
Evaluation of the Downstream Migrant Bypass System

PORTLAND GENERAL ELECTRIC

T. W. SULLIV AN PLANT

Progress Report , SE~EJl, 1992

The unit # 13 fish bypass operated the entire month except

from September 22 to 24 when the plant was shut down. The willamette River flows, as measured at Salem, ranged between 700 and 7, 700 efs. Water temperatures at the Falls ranged

between 63 and 69 degrees F. (ODFW data) 

We conducted three 24 hour monitoring periods during the month. Only 118 chinook were counted during these three periods

however , large numbers of juvenile shad were observed using the bypass during these periods.

October 8, 1992

SULPRG10
PORTLAND GENERAL ELECTRIC

T. W. SULLIVAN PLANT

Evaluation of the Downstream Migrant Bypass System

Progress Report OCTOBER 1992

The unit #13 fish bypass operated the entire month. The

Willamette River flows , as measured at Salem , ranged between

000 and 8 900 cfs. Water temperatures at the Falls ranged

between 56 and 63 degrees F. (ODFW data) 

We conducted two 24 hour monitoring periods during the first

two weeks of the month. Only 130 chinook were counted during

these two periods however , large numbers of juvenile shad were

observed using the bypass during these periods.

During the last two weeks of the month we modified the

holding tank of the evaluator and installed the PIT (Passive

Integrated Transponder) tag detection equipment. The marking and

detection equipment is ready for next months releases of hatchery

spring chinook in the upper Willamette River. 

November 3 , 1992

SULPRG11
PORTLAND GENERAL ELECTRIC

T. W. SULLIV AN PLANT

Evaluation of the Downstream Migrant Bypass System

Progress Report NOVEMBER, 1992

On November 9 the ODFW began releasing spring chinook smolts

from their upper Willamette River hatcheries (Table 1). As the

fish moved downstream through the Sullivan Plant bypass system we

were able to conduct one forebay guidance test , using the new PIT

tag equipment , and examine fish for descaling and inj ury. The

forebay guidance efficiency was 93. 8% (616-released; 578-

recaptured). The fish were released on November 18 and the test

was terminated on November 24. During this period the penstock

screen was back flushed for cleaning 11 times. From November 16

through the 28 we examined 13 616 hatchery and 192 wild spring

chinook for descaling and injury after they had passed through

the bypass system. We did not examine any fish prior to entering

the bypass system. The descaling and injury rate for hatchery

spring chinook was 4. 7% and 0. 5% wild spring chinook.

The Willamette River flows, as measured at Salem , increased

from a low of 11, 300 cfs on November 7 to a high of 46 000 cfs on

November 23. Water temperatures at the Falls dropped during the

month from 56 to 45 degrees F. (ODFW data) .

For the last two years high river flows and increased debris

load in November has required frequent back flushing or cleaning

of the penstock screen. As a result the penstock screen is not

always in the fishing position during these high debris load

periods.

Based on the timing of fish through the Sullivan bypass the

shutdown of Simpson and Smurfit hydro units (November 13 through

27) occurred when the greatest number of fish were passing the

Fa 11s.

December 7 , 1992

SULPRG12
PORTLAND GENERAL ELECTRIC

T. W. SULLIV AN PLANT

Evaluation of the Downstream Migrant Bypass System

Progress Report DECEMBER, 1992

The unit #13 fish bypass operated 16 days in the fishing or

bypass position and 15 days (three different time periods) in the

neutral or non-fishing position during the month. These nonfishing periods occurred during high debris load in the river.

The Willamette River flows , as measured at Salem , ranged between

000 and 63 000 cfs. Water temperature at the Falls ranged

between 43 and 47 degrees F. (ODFW data) 

We conducted four 24 hour monitoring periods during the month. The time periods and numbers of f ish were;

1. DEC. 10-11

2. DEC. 16-17

3. DEC. 22-23

4. DEC. 29-30

28 chinook, 100 fry

7 chinook , 200 fry

7 chinook , 200 fry

2 chinook , 200 fry

January 18 1993

SULPRG13
PORTLAND GENERAL ELECTRIC

T. W. SULLIVAN PLANT

Evaluation of the Downstream Migrant Bypass System

Progress Report , J~AJlY 1993

The unit #13 fish bypass operated 25 days in the

bypass position. For 6 days the bypass\evaluator was

and not operating due to ice buildup on the evaluator

structure causing a potential weight overload.

The Willamette River flows , as measured at Salem , ranged between

000 and 64 900 cfs. Water temperatures at the Falls ranged

between 37 and 45 degrees F. (ODFW data) 

We conducted seven 24 hour monitoring periods during the month. The dates and numbers of fish were;

fishing or

dewa tered

support

Jan. chinook 250 fry

Jan. 15 chinook steelhead fry

Jan. 22 chinook fry

Jan. chinook fry

Jan. 27 chinook steelhead sockeye 100 fry

Jan. chinook, fry

Jan. chinook, fry

Beginning in February and lasting possibly till mid-summer

all of the plants generating units will be rewired with new controls and readouts. The new system is called " Supervisory

Control And Data Acquisition" (SCADA). During this installation

period each generator will be down for approximately 2 to 3 weeks. unit #13 will be done last after the spring downstream

migration period.

Don Clark

February 8 , 1993

SULPRG1
PORTLAND GENERAL ELECTRIC

T. W. SULLIVAN PLANT

Evaluation of the Downstream Migrant Bypass System

Progress Report, FEBRUARY, 1993

The unit #13 fish bypass operated the entire month except

for one day, February 23rd. The plant was shut down and the

forebay dewatered so that racks , screens and the evaluator could

be cleaned and inspected prior to hatchery fish releases in early March. The Willamette River flows , as measured at Salem, ranged

between 11, 700 and 26 500 cfs during the month. Water

temperatures at the Falls ranged between 390 and 480 F. (ODFW data) .

We conducted fifteen 24 hour monitoring periods during the month. The numbers of fish were;

Chinook

Steelhead

Fry

185

107

It was reported in the January, 1993 progress report that we

would be rewiring (SCADA) all the generating units starting this month. This activity has been postponed till Summer so that all

units will be available for testing this Spring.

Don Clark

March 9, 1993

SULPRO2
PORTLAND GENERAL ELECTRIC

T. W. SULLIV AN PLANT

Evaluation of the Downstream Migrant Bypass System

Progress Report MARCH, 1993

The unit #13 fish bypass operated the entire month. All

units operated the entire month except unit #11 which was down

from March 1 through 5. The Willamette River flows , as measured

at Salem, ranged between 12, 200 and 82, 000 cfs. Water

temperatures at the Falls ranged between 420 and 510 F. (ODFW

data) .

The ODFW began releasing spring chinook smolts from their

upriver hatcheries on March 10. We conducted sixteen 24 hour

monitoring periods during the month. A fish guidance test was

started on March 17 and the fish released on March 19 at the

beginning of the highest flows for the month. The inside forebay

elevation reached 56. 8 feet which is 0. 8 of a foot over the fish

guidance training wall. Few PIT tagged fish were recovered and

were still being recovered in the bypass evaluator on April 

On March 16 we began a 48 hour delayed mortality test and no

mortalities occurred on 340 hatchery and 16 wild spring chinook.

Descaling observations , which include descaling, injury and

dead fish , from January 21 through March 30 resulted in a 8. 52 %

descaling rate for wild and 2. 79 % for hatchery spring chinook.

The numbers of fish examined were 563 wild and 9, 302 hatchery

spr ing chinook.

Don Clark

April 9, 1993

SULPRG3
PORTLAND GENERAL ELECTRIC

T. W. SULLIV AN PLANf

Evaluation of the Downstream Migrant Bypass System

Progress Report APRIL, 1993

The unit #13 fish bypass operated the entire month as did

the other 12 units. The Willamette River flows , as measured at

Salem, ranged between 23 500 and 69, 400 cfs. Water temperatures

at the Falls ranged between 490 and 530 F. (ODFW data) .

The ODFW began releasing winter and summer steelhead smol 

in the upper Willamette River on April 5. Fall chinook juveniles

first appeared in the bypass system on April 28.

Two 48 hour delayed mortality tests were conducted during

the month on the 8th and 29th. There were no mortalities on the

first test with 87 hatchery spring chinook and 6 wild steelhead.

The second test had 11 fall chinook mortalities out of 295 fall

chinook , 15 hatchery spring chinook , 17 hatchery steelhead and 1 coho. PIT tag recoveries are still being recorded on fish

released for forebay guidance tests in March.

Don Clark

May 12 , 1993

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PO Jl TLAND GENERAL ELECTRIC

T. W. SULLIVAN PLANT

Evaluation of the Downstream Migrant Bypass System

Progress Report MAY, 1993

The unit #13 fish bypass operated the entire month as did

the other 12 units. The Willamette River flows , as measured at Salem, ranged between 20, 000 and 48 100 cfs. Water temperatures

at the Falls ranged between 530 and 610 F. (ODFW data).

During the month we conducted thirteen 24-hour monitoring

periods , descaling and injury observations, six forebay guidance

tests and one 48-hour delayed mortality test. The 24-hour

monitoring periods are listed on the attached table for this year

as well as May, 1992. The May, 1992 data is included to

illustrate the difference in river flows between the two years

and the number of fish using the unit #13 fish bypass.

There were no mortalities in the 48-hour delayed mortality

test out of 329 fall chinook and 9 steelhead.

As mentioned in last months progress report recoveries of

PIT tagged test fish are occurring over longer periods of time

this Spring than in the Fall of 1992. The guidance percentages

will be reported as the records are completed.

Don Clark

June 8 , 1993

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TABLE MAY, 1992

DATE FLOW UNITS WILD HATCH WILD HATCH COHO FALL

SALEK OFF SCHIN SCHIN STHD STBD CHIN

5-1 15000 1851 18860 242 19072

5"" 12400 556 4381 163 76246

5-6 10800 841 6757 265 83369

5-8 11900 752 4236 316 65028

5-11 12000 412 2036 3449 42823

5-13 12000 471 1999 589 54166

5-15 8900 375 1596 452 26693

5-18 7300 495 2110 1655 21791

5-20 7200 818 2836 1295 7019

5-22 7200 391 1052 1030 11591

5-25 6500 328 990 230 9252

5-27 6400 382 770 258 15146

5-29 6200 216 481 303 9482

MAV 1993

DATE FLOW UNITS WILD HATCH WILD HATCH COHO FALL

SALEK OFF SCHIN SCHIN STHD STHD CHIN

5-3 33300 377 8508

5-5 43000 241 15197

5-7 40130 215 10302

5-10 46700 2524

5-12 38000 117 5616

5-14 31100 129 140 3113

5-17 26000 355 287 2343

5-19 20800 552 568 3518

5-21 22400 142 590 1296 3529

5-24 23500 133 459 113 981

5-26 20500 302 994

5-28 24200 114 276 271 1098

5-31 26900 100 655
PORTLAND GENERAL ELECTRIC

T. W. SULLIV AN PLANf

Evaluation of the Downstream Migrant Bypass System

Progress Report JUNE, 1993

The unit #13 fish bypass operated the entire month as did

the other 12 units. The Willamette River flows , as measured at

Salem, ranged between 11 250 and 55 000 cfs. Water temperatures

at the Falls ranged between 570 and 670 F. (ODFW data) .

During the month we conducted thirteen 24-hour monitoring

periods , descaling and injury observations and one forebay

guidance test. The 24-hour monitoring periods are listed on the

attached table for this year as well as June , 1992.

Don Clark

July 9 , 1993

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TABLE

JUNE 1992

DATA FLOW UNITS WILD HATCH WILD HATCH COHO FALL

SALEM OFF SCHIN SCHIN STHD STHD CHIN

6-1 6200 164 407 221 9171

6-3 6000 118 3756

6-8 5900 1974

6-10 5900 1906

6-12 5900 1474

6-15 6700 886

6-17 6300 2177

6-19 6000 457

6-29 7000

JUNE, 1993

DATE FLOW UNITS WILD HATCH WILD HATCH COHO FALL

SALEM OFF SCHIN SCHIN STHD STHD CHIN

6-2 48050 1366

6-4 52300 267

6-7 49000 442

6-9 40000 382

6-11 32800 1397

6-14 29000 1571

6-16 23900 2206

6-18 20800 3225

6-21 17680 6305

6-23 14300 3527

6-25 14300 2659

6-28 12000 2177

6-30 11250 1826
PORTLAND GENERAL ELECTRIC

T. W. SULLIV AN PLANf

Evaluation of the Downstream Migrant Bypass System

Progress Report JULY, 1993

unit #13 and the fish bypass were shut down on July 6 so

that the turbine runner could be replaced. The unit and bypass

were back on line August 3. The Willamette River flows , as

measured at Salem , ranged between 7 700 and 12, 200 cfs during the month. Water temperatures at the Falls ranged between 630 and

680 F. (ODFW data).

We conducted two 24-hour monitoring periods before unit #13 was shut down. The results are listed in the following table.

JULY, 1993

DATE FLOW UNITS WILD HATCH WILD HATCH COHO FALL

SALEM OFF SCHIN SCHIN STHD STHD CHIN

7-2 11800 2827

7-5 9100 1024

Don Clark

August 6 , 1993

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