Summary of Model Prediction Runs

Existing Loc. New Loc.

BOD/TSS TP GIPOP 1* GIPOP 2*

0

92000

*Current Location of GIPOP is at Upper Narrows, approximately 5 miles upstream from dam. A new location for a second oxygen injection system was investigated at Lower Narrows at a depth of 50' and approximately 3 miles upstream from the dam.

Model Run

Oxygen Injection (ppd)

92000 0

1A 55% 72%

0B

54%

0D

2A 0 11%

0 64%0

92000

Paper Mills =0 Municipal = Actual

2B

Actual (98-00)

15%Actual (98-00)

0 40%0

20%Actual Flow

98-00

92000

7%

3B 0

67% Point Source TP

920003A 0 7%

0

1% 4%

4B 0

Actual (98-00)

40% Point Source TP

4A 92000

40% 54%

0

5B 92000

5A 10% Actual

4%

37% 54%

1% 1%

Actual (98-00)

6A 67% Point Source TP 45000 90000 1%

6B 40% Point Source TP 35000 70000

86%1B

40% Point Source TP

25% Actual

50% Actual5C

LicenseLic. Flow

Actual Conc.

0

1%

2%0

0

0

4% 6%

0

6%

Summary of Model Prediction Runs

Maximum Chl a (ppb)

2.4

7

0 010% 29%

0A

Point Source Conditions% of Pond Volume < DO Criteria

Minimum DO < 5 ppm Mo Ave DO < 6.5 ppm

1%

0% 1%

7.6

12.4

7.6

18.6

16.6

12.4

7.6

Androscoggin River Modeling Report - May 2002Executive Summary

DEPLW2001.11Page 4

Figure 1Percentage of Gulf Island Pond

Not Meeting Minimum Class C Dissolved Oxygen Criteria

0%

2%

4%

6%

8%

10%

12%

14%

16%

18%

Summer Data

% V

olu

me in

No

n-A

ttainm

ent

92 93 94 95 98 99

Androscoggin R

iver Modeling R

eport - May 2002 - P

age 5

Figure 2Summary of Gulf Island Pond Chlorophyll A Data 1998 - 2000

0

10

20

30

40

50

60

15-Apr 24-Jul 01-Nov 09-Feb 20-May 28-Aug 06-Dec 15-Mar 23-Jun 01-Oct 09-Jan

Ch

l a (pp

b)

Turner Bridge

Upper Narrows

Lower Narrows

GIP4

Deep Hole

1998 1999 2000

Androscoggin R

iver Modeling R


age 6

Figure 3Time of Travel Androscoggin River

0

2

4

6

8

10

12

14

16

18

020406080100120140

River Mile

Cu

mu

lative Tim

e of T

ravel (days)

1000 cfs

2000 cfs

3000 cfs

4000 cfs

5000 cfs

Flow at Rumford

Berlin

Rum

ford

Jay

G I D

am

Tw

in Bridges

Androscoggin R

iver Modeling R

eport - May 20012- P

age 7

Figure 4Gulf Island Pond Summer 1999

% Volume of Dissolved Oxygen Non-Attainment Vs Chlorophyll a

0.00%

2.00%

4.00%

6.00%

8.00%

10.00%

12.00%

07-J

un

10-J

un

14-J

un

17-J

un

23-J

un

28-J

un

06-J

ul

08-J

ul

12-J

ul

14-J

ul

23-J

ul

30-J

ul

02-A

ug

05-A

ug

09-A

ug

12-A

ug

15-A

ug

19-A

ug

23-A

ug

26-A

ug

31-A

ug

02-S

ep

07-S

ep

14-S

ep

% o

f Po

nd

Vo

lum

e in N

on

-Attain

men

t Class C

DO

0

5

10

15

20

25

30

35

Ch

loro

ph

yll a

(p

pb

)

% Vol DO Non-attainment

Ave Chl a

Androscoggin R

iver Modeling R


age 10


% Volume of Dissolved Oxygen Non-Attainment Vs Temperature

0

5

10

15

20

25

30

01-J

un

06-J

un

11-J

un

16-J

un

21-J

un

26-J

un

01-J

ul

06-J

ul

11-J

ul

16-J

ul

21-J

ul

26-J

ul

31-J

ul

05-A

ug

10-A

ug

15-A

ug

20-A

ug

25-A

ug

30-A

ug

04-S

ep

09-S

ep

14-S

ep

19-S

ep

River T

emp

erature (C

)

0

2

4

6

8

10

12

% o

f P

on

d in

No

n-A

ttai

nm

ent

of

Cla

ss C

DO

Cri

teri

a

Temp (C) Gulf Island Dam 50' Depth

Temp (C)Turner Brudge

% Volume Pond DO Non-Attainment

Stratification Stratification Stratification

MixMix

Mix

Androscoggin R

iver Modeling R


age 11


% Volume of Dissolved Oxygen Non-Attainment Vs Temperature Vs Flow

0

5

10

15

20

25

30

01-J

un

06-J

un

11-J

un

16-J

un

21-J

un

26-J

un

01-J

ul

06-J

ul

11-J

ul

16-J

ul

21-J

ul

26-J

ul

31-J

ul

05-A

ug

10-A

ug

15-A

ug

20-A

ug

25-A

ug

30-A

ug

04-S

ep

09-S

ep

14-S

ep

19-S

ep

River T

emp

(C)

-1

1

3

5

7

9

11

13

15




River Flow at Rumford (Thousands of CFS)

1730 cfs

31300 cfs

Stratification

Stratification

Stratification

Mix Mix

Mix

O =

Riv

er F

low

in T

ho

usa

nd

s o

f C

FS

X =

% V

olu

me

In N

on

-Att

ain

men

t

Androscoggin R

iver Modeling R


age 12


% Volume of Dissolved Oxygen Non-Attainment Vs Temperature Vs Chlorophyll A

0

5

10

15

20

25

30

01-J

un

06-J

un

11-J

un

16-J

un

21-J

un

26-J

un

01-J

ul

06-J

ul

11-J

ul

16-J

ul

21-J

ul

26-J

ul

31-J

ul

05-A

ug

10-A

ug

15-A

ug

20-A

ug

25-A

ug

30-A

ug

04-S

ep

09-S

ep

14-S

ep

19-S

ep

Tem

peratu

re (C)

0

5

10

15

20

25

30

35

% V

olu

me

in N

on

-Att

ain

men

t

or

C

hl a

(p

pb

)




Chl a

Stratification Stratification StratificationMix

Mix

Mix

Androscoggin R

iver Modeling R


age 13

NH3 Flux PO4 Flux

Settling

Settling

Atmospheric Reaeration

CBOD

Dissolved Oxygen

NH3-N

PHYTOPLANKTONOPO4Growth and Nutrient Consumption

Death and Nutrient Recycling

Nitrification

Denitrification

Light

Pho

tosy

nthe

sis

R

espiration

Figure 7a WASP Model Schematic

N2

NO3-N

Androscoggin R

iver Modeling R


age 16

Sediment

ON OP

Settling

SO

D

Androscoggin River Modeling Report - May 2002 - Page 17

8

1

2

3

4

27

Jay Dam

Twin Bridges

13

14Livermore Falls Dam

Gulf Island Pond WASP Model

Livermore Falls, ME

Dead River

15

16

International Paper Co.

Peru

Canton

Rumford Falls Dam Swift River

Mead Paper Co.Rumford-Mexico, ME

Webb River

12

10

Pulp and Paper America Burgess MillBerlin, NH

Ellis River

Gorham, NHPeabody River

Wild River

Bethel, ME

Pulp and Paper America Cascade Mill

100

110

9

6

11

7

Figure 8Qual2EU Model Setup for Upper Androscoggin River

River Mile134

120

InputsSample LocationsBerlin

Gorham

Gilead

Bethel

5

ME / NH State Line

Virginia Bridge

Rumford Point

Gulf Island Dam

50

41

90

70

60

80

Riley Dam

L. Narrows

0

Bed segments in bold-face print

Figure 9WASP Model Segmentation for Gulf Island Pond

Androscoggin R

iver Modeling R


age 18

Nezinscot R

iver

2253 54

9

10

5219

70

60

13

40

15 18 2145 46 12

16

24

33

5550

30

Depth ft

51

25

41

37

26 32 38

35

River Mile36 35 34 33 32 31 30 29 27

58

43

56

28

29

30

4034

4236

8

57

39

11 14 17 20

27

23

315 6 7

47 48 49 5044

40

20

U. Narrows GIP4 Deep Hole

38 37 28

Twin Bridges

60

3

Turner Bridge

39

2 4

41

110

Figure 10Androscoggin River Flow

August 2000

0

500

1000

1500

2000

2500

3000

3500

4000

4500

28-Jul 02-Aug 07-Aug 12-Aug 17-Aug 22-Aug 27-Aug 01-Sep 06-Sep

Flo

w (cfs)

Rumford

Turner

Sampling Dates

Androscoggin R

iver Modeling R


age 25

Figure 11 - Model Calibration of Ultimate BOD - August 2000 Data

Turner Bridge

2

3

4

5

6

7

8

01-Aug 06-Aug 11-Aug 16-Aug 21-Aug 26-Aug 31-Aug

CB

OD

u (p

pm)

Data Uncorr

Data Corr

Model

Upper Narrows

2

3

4

5

6

7


CB

OD

u (p

pm)

Data Uncorr

Data Corr

Model

Lower Narrows

3

3.5

4

4.5

5

5.5

6


CB

OD

U (

ppm

)

Data Uncorr

Data Corr

Model

Deep Hole

0

1

2

3

4

5

6


CB

OD

u (p

pm)

Data Uncorr

Data Corr

Model

Androscoggin River Modeling Report - May 2002Page 26

Figure 12Model Solar Radiation

0

100

200

300

400

500

600

700


So

lar Rad

iation

(Lan

gleys/d

ay)

Aug-00

Aug-84

Androscoggin R

iver Modeling R


age 27

Figure 13 - Model Calibration of Chlorophyll a - August 2000 Data

Turner Bridge

012345678


Chl

a (

ppb)

Data

Model

Upper Narrows

0

2

4

6

8

10

12


Chl

a (

ppb)

Data

Model

Lower Narrows

02468

10121416


Chl

a (

ppb)

Data

Model

Deep Hole

02468

10121416


Chl

a (

ppb)

Data

Model


Figure 14 - Model Calibration of Total Nitrogen - August 2000 Data

Turner Bridge

0

0.1

0.2

0.3

0.4

0.5

0.6

0.7


To

tal N

itro

gen

(p

pm

)

TN Data

TN Model

Upper Narrows

0

0.1

0.2

0.3

0.4

0.5

0.6


To

tal N

itro

gen

(p

pm

)

TN Data

TN Model

Lower Narrows

0

0.2

0.4

0.6

0.8

1


To

tal N

itro

gen

(p

pm

)

TN Data

TN Model

Deep Hole

0

0.1

0.2

0.3

0.4

0.5

0.6


To

tal N

itro

gen

(p

pm

)

TN Data

TN Model


Figure 15 - Model Calibration of Total Phosphorus - August 2000

Turner Bridge

010203040506070


To

tal P

ho

sph

oru

s (p

pb

)

TP Data

TP Model

Upper Narrows

0

10

20

30

40

50

60

70


To

tal P

ho

sph

oru

s (p

pb

)

TP Data

TP Model

Lower Narrows

0

10

20

30

40

50

60


To

tal P

ho

sph

oru

s (p

pb

)

TP Data

TP Model

Deep Hole

0

10

20

30

40

50

60


To

tal P

ho

sph

oru

s (p

pb

)

TP Data

TP Model


Figure 16 - Model Verticle Dispersion Rate

August 2000 Calibration

0

0.5

1

1.5

2

2.5

3

3.5

4

4.5

5


Ver

ticl

e D

isp

ersi

on

(cm

2/se

c)

Most Reaches

Reaches18-19, 23-24

Reaches 41-42, 42-43

Large Runoff Event

20

August 1984 Verification

0

1

2

3

4

5

6

7

8


Ver

ticl

e D

isp

ersi

on

(cm

2/se

c)

Most Reaches

(reaches 41-42, 42-43)


Figure 17 Continuous Model Calibration of Dissolved Oxygen

Turner Bridge Monitor August 2000

0

1

2

3

4

5

6

7

8

9


Disso

lved O

xygen

(pp

m)

Data High

Data Ave

Data Low

Model

Androscoggin R

iver Modeling R


age 32

Figure 18 - Continuous Model Calibration of Dissolved Oxygen - Gulf Island Dam - August 2000

Above Gulf Island Dam Monitor 5' Depth

0

2

4

6

8

10

12


D.O

. (p

pm

)

Max

Ave

Min

Model


0

1

2

3

4

5

6

7

8

9


DO

(p

pm

) Max

Ave

Min

Model


0123456789

10


DO

(p

pm

) Max

Ave

Min

Model


Figure 19a - Calibration of Dissolved Oxygen by River Mile - August 9, 2000

D0 Top Layer 8-9-00

0123456789

10

25272931333537394143

River Mile

Do

(ppm

)

Data High

Data Ave

Data Low

Model

D0 Middle Layer 8-9-00

0

1

2

3

4

5

6

7

8

9

25262728293031323334

River Mile

Do

(ppm

) Data High

Data Ave

Data Low

Model

D0 Bottom Layer 8-9-00

0123456789

10

25262728293031323334

River Mile

Do

(ppm

) Data High

Data Ave

Data Low

Model

Androscoggin River Modeling Report - May 2002DEPLW2001-11

Page 34


Page 34

Figure 19b - Calibration of Dissolved Oxygen by River Mile - August 15, 2000

D0 Top Layer 8-15-00

0

1

2

3

4

5

6

7

8

9

2530354045

River Mile

Do

(ppm

) Data High

Data 10' Depth Profile

Data Low

Model


0

1

2

3

4

5

6

7

8

9

25262728293031323334

River Mile

DO

(pp

m)

Data High

Data Ave

Data Low

Model


0123456789

10

25262728293031323334

River Mile

Do

(ppm

) Data High

Data Ave

Data Low

Model


Page 35

Figure 19c - Calibration of Dissolved Oxygen by River Mile - August 31, 2000

D0 Top Layer 8-31-00

0

2

4

6

8

10

12

25272931333537394143

River Mile

Do

(ppm

) Data High

Data Ave

Data Low

Model


0

2

4

6

8

10

12

25262728293031323334

River Mile

Do

(ppm

) Data High

Data Ave

Data Low

Model


0

2

4

6

8

10

12

25262728293031323334

River Mile

DO

(pp

m) Data High

Data Ave

Data Low

Model


Page 36


Page 36

Figure 20 - Model Verification of the August 1984 Data in Gulf Island Pond

Carbonaceous BOD

0

2

4

6

8

10

12

262830323436384042

River Mile

CB

OD

(p

pm

)

Data High

Data Ave

Data Low

Model

Chlorophyll A

0

1

2

3

4

5

6

262830323436384042

River Mile

Ch

l a (

pp

b)

Data High

Data Ave

Data Low

Model

PO4-P

0

5

10

15

20

25

30

25272931333537394143

River Mile

PO

4-P

(pp

b)

Data High

Data Ave

Data Low

Model


Figure 20a - Model Verification of the August 1984 DO in Gulf Island Pond

D0 Top Layer Aug 1984

0

1

2

3

4

5

6

7

8

25272931333537394143

River Mile

DO

(pp

m)

Data High

Data Ave

Data Low

Model

D0 Middle Layer Aug 1984

0

1

2

3

4

5

6

7

8

25262728293031323334

River Mile

DO

(pp

m) Data High

Data Ave

Data Low

Model

D0 Bottom Layer Aug 1984

0

1

2

3

4

5

6

7

8

25262728293031323334

River Mile

DO

(pp

m) Data High

Data Ave

Data Low

Model


Page 38

Summary of Model Prediction Runs

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