Figure 21 - Calibration of Upper Androscoggin River PO4-P Uptake Rate August 1982 Data Set 0 5 10 15 20 25 30 35 40 45 50 Virginia Bridge Dixfield Canton Riley Dam Livermore Falls Twin Bridges Sample Location PO4-P (ppb) Data Low Data Ave Data High Model w/p-uptake = .25 Model wo/P-Uptake August 1982 Data Set 0 5 10 15 20 25 30 35 40 45 50 Berlin Gorham Gilead Virginia Bridge Dixfield Canton Riley Dam Livermore Falls Twin Bridges Data Low Data Ave Data High Model w/p-uptake = .50 Model wo/P-Uptake Androscoggin River Modeling Report - May 2002 DEPLW2001-11 Page 41
Transcript
Figure 21 - Calibration of Upper Androscoggin River PO4-P Uptake Rate
August 1982 Data Set
0
5
10
15
20
25
30
35
40
45
50
VirginiaBridge
Dixfield Canton Riley Dam LivermoreFalls
TwinBridges
Sample Location
PO
4-P
(pp
b) Data Low
Data Ave
Data High
Model w/p-uptake = .25
Model wo/P-Uptake
August 1982 Data Set
0
5
10
15
20
25
30
35
40
45
50
Berlin Gorham Gilead Virginia Bridge Dixfield Canton Riley Dam Livermore Falls Twin Bridges
Data Low
Data Ave
Data High
Model w/p-uptake = .50
Model wo/P-Uptake
Androscoggin River Modeling Report - May 2002DEPLW2001-11
Page 41
Figure 22TSS Calibration Summer 1989
Kr = .10 /day
0
2
4
6
8
10
12
14
25456585105125
River Mile
TS
S (p
pm
)
Model
Data High
Data Ave
Data Low
Androscoggin R
iver Modeling R
eport - May 2002 - P
age 48
Figure 23
Origin of Sediment Oxygen Demand in Gulf Island PondBy Source
0
0.5
1
1.5
2
2.5
3
3.5
41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26
River Mile
SO
D (
gm
/m^
2-d
ay)
NPS/Background Point Source Unknown PS Incremental Potential*
*The increment SOD would increase with point sources discharging licensed flow and TSS at actual TP concentrations.
Androscoggin R
iver Modeling R
eport - May 2002 - P
age 49
Figure 24Origin of Sediment Oxygen Demand in Gulf Island Pond
By Pollutant Parameters
0
0.5
1
1.5
2
2.5
3
41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26
River Mile
SO
D (
gm
/m^
2-d
ay)
UnknownAlgaeNon-Algal TSS
Androscoggin R
iver Modeling R
eport - May 2002 - P
age 50
Figure 25Sediment Oxygen Demand Used in Model Prediction Runs
0
0.5
1
1.5
2
2.5
3
3.5
2628303234363840
River Mile
SO
D (
gm
/m^
2-d
ay)
PS=0
Mills=0
PS TP = 40%
PS TP = 67%
PS=Actual
PS=License
Androscoggin R
iver Modeling R
eport - May 2002 - P
age 51
Figure 26 - Diurnal Dissolved Oxygen Vs Chlorophyll A Regression
0
0.5
1
1.5
2
2.5
3
0 10 20 30 40 50 60
Chlorophyll a (ppb)
DIu
rnal D
O R
ang
e (pp
m)
Adj Diurnal Data
Regression
Diurnal DO Range (due to chl a) = 0.03 x (Chl a) +0.22
Adj Diurnal Data = Monitor diurnal DO data adjusted so that the daily minimum occurs in the early AM and the daily maximum occurs in PM.
Androscoggin R
iver Modeling R
eport - May 2002 - P
age 60
L. Narrows
07
GIPOP
3.5
7.1
37
7 7 6.9
Assumed position of thermocline
Nez
insc
ot R
iver
39
7.2
Deep HoleGIP4Turner BridgeTwin Bridges U. Narrows
4041
7.2
10.1
10
7
6.6
6.2 11.6
10
30
20
7.2
6.7
6.8 8.8 8.5 8.1
9.19.5
9.2 8.6
38 33 32 31
5.2
8.9
8.2
8.4
7.9
8.1
7.16.8
8.1
River Mile36 35 34 2730 29
8
28
8.6
9.6
7.7 7.7
8.1 8 7.8
7.8
6.6
50 Dep
th (
ft)40
70
60
Figure 27 - Model Prediction of Minimum Dissolved Oxygen Non-Attainment in Gulf Island Pond Run 0a - Point Sources at Zero Discharge with GIPOP
The entire volume of Gulf Island Pond meets minimum Class C dissolved oxygen criteria (5 ppm).
Androscoggin R
iver Modeling R
eport - May 2002 - P
age 62
Model non-attainment segment with predicted dissolved oxygen (ppm)
7
L. Narrows
0
Assumed position of thermocline
Figure 28 - Model Prediction of 30-Day Average Dissolved Oxygen Non-Attainment in Gulf Island Pond Run 0a - Point Sources at Zero Discharge with GIPOP
1% of the volume of Gulf Island Pond does not meet the monthly mean Class C dissolved oxygen criteria (6.5 ppm).
Androscoggin R
iver Modeling R
eport - May 2002 - P
age 63
Model non-attainment segment with predicted dissolved oxygen (ppm)
7.4
70
60
7
50 Dep
th (
ft)40
8.4
28
9
9.9
8.2 8.2
8.5 8.3 8.2
8.4
River Mile36 35 34 2730 29
5.6
9.2
8.6
8.8
8.2
8.5
7.57.2
8.5
38 33 32 31
7.7
7
7.3 9.3 9 8.6
9.49.8
9.6 8.9
10
30
20
10.4
10.3
7.4
7
6.6 11.8
39
7.7
Deep HoleGIP4Turner BridgeTwin Bridges U. Narrows
4041
7.8
Nez
insc
ot R
iver
7.6
GIPOP
3.5
7.7
37
7.6 7.5 7.5
L. Narrows
07
3.5
7.1
37
7 7 6.9
Assumed position of thermocline
Nez
insc
ot R
iver
39
7.2
Deep HoleGIP4Turner BridgeTwin Bridges U. Narrows
4041
7.2
5.3
6.7
6.9
6.8
6.3 6.3
10
30
20
7.2
2.6
6.9 6.9 6.8 6.8
6.46.5
5.9 6
38 33 32 31
2.3
5.5
5.8
5.3
4.8
5.3
4.63.5
4.4
River Mile36 35 34 2730 29
5.7
28
4.5
5.1
6.8 6.5
6.5 6.3 6.1
6.8
2.2
50 Dep
th (
ft)40
70
60
Figure 29 - Model Prediction of Minimum Dissolved Oxygen Non-Attainment in Gulf Island Pond Run 0b - Point Sources at Zero Discharge without GIPOP
10% of the volume of Gulf Island Pond does not meet minimum Class C dissolved oxygen criteria (5 ppm).
Androscoggin R
iver Modeling R
eport - May 2002 - P
age 64
Model non-attainment segment with predicted dissolved oxygen (ppm)
7
L. Narrows
0
Assumed position of thermocline
Figure 30 - Model Prediction of 30-Day Average Dissolved Oxygen Non-Attainment in Gulf Island Pond Run 0b - Point Sources at Zero Discharge without GIPOP
29% of the volume of Gulf Island Pond does not meet the monthly mean Class C dissolved oxygen criteria (6.5 ppm).
Androscoggin R
iver Modeling R
eport - May 2002 - P
age 65
Model non-attainment segment with predicted dissolved oxygen (ppm)
7.4
70
60
2.6
50 Dep
th (
ft)40
6.1
28
4.9
5.5
7.3 7.1
6.9 6.8 6.5
7.4
River Mile36 35 34 2730 29
2.7
6
6.2
5.7
5.2
5.7
53.9
4.8
38 33 32 31
7.7
3.1
7.4 7.4 7.4 7.3
6.97
6.3 6.5
10
30
20
5.8
7.1
7.4
7.2
6.8 6.7
39
7.7
Deep HoleGIP4Turner BridgeTwin Bridges U. Narrows
4041
7.8
Nez
insc
ot R
iver
7.6
3.5
7.7
37
7.6 7.5 7.5
L. Narrows
04.8
GIPOP
3.5
4.8
37
4.8 4.8 5
Assumed position of thermocline
Nez
insc
ot R
iver
39
4.8
Deep HoleGIP4Turner BridgeTwin Bridges U. Narrows
4041
4.8
4.9
7.4
4.6
3.9
2.7 8
10
30
20
4.8
0
5.1 7.6 7.3 6.7
66.6
4.9 4.5
38 33 32 31
0
3.9
3.7
3
1.9
2.7
1.20
1.7
River Mile36 35 34 2730 29
3.3
28
2.5
4.1
6 5.5
5.4 4.7 4.1
6.2
0
50 Dep
th (
ft)40
70
60
Figure 31 - Model Prediction of Mimimum Dissolved Oxygen Non-Attainment in Gulf Island Pond Run 1a - Current Licensed Loading of Point Sources with GIPOP
55% of the volume of Gulf Island Pond does not meet minimum Class C dissolved oxygen criteria (5 ppm).
Androscoggin R
iver Modeling R
eport - May 2002 - P
age 66
Model non-attainment segment with predicted dissolved oxygen (ppm)
4.7
L. Narrows
0
Assumed position of thermocline
Figure 32 - Model Prediction of 30-Day Average Dissolved Oxygen Non-Attainment in Gulf Island Pond Run 1a - Current Licensed Loading of Point Sources with GIPOP
72% of the volume of Gulf Island Pond does not meet the monthly mean Class C dissolved oxygen criteria (6.5 ppm).
Androscoggin R
iver Modeling R
eport - May 2002 - P
age 67
Model non-attainment segment with predicted dissolved oxygen (ppm)
5.8
70
60
0
50 Dep
th (
ft)40
4.6
28
3.7
5.3
7.1 6.6
6.4 5.8 5.2
7.4
River Mile36 35 34 2730 29
0
5.2
5
4.3
3.2
4
2.40.6
2.9
38 33 32 31
6
0
6.3 8.7 8.5 7.9
7.17.6
6.1 5.8
10
30
20
6.1
8.4
5.6
5
3.9 9
39
6
Deep HoleGIP4Turner BridgeTwin Bridges U. Narrows
4041
6
Nez
insc
ot R
iver
6
GIPOP
3.5
6
37
6 6 6.2
L. Narrows
0
Assumed position of thermocline
9.8
35' attainment
50' non-attain.
7.2 7.1 6.6
monitor 99-00
5' attainment
20' attainment
70' non-attain. anaerobic
5.6
2.1
4.2
6.1
5.9
5.4
4.5
Dep
th (
ft)40
6.5
70
0.5
50
60
8.2 7.89
27
7 6.7
6.9 6.4
7.2
6
River Mile36 35 34 33 32 31 30 29 28
0
6.2
5.9
5.5
4.5
5.2
4.8
1.13.6
6.3 8.7 8.3 7.7
41
5.8
10
30
40
20
65.8
3839
5.8
11% of the volume of Gulf Island Pond does not meet minimum Class C dissolved oxygen criteria (5 ppm).
Nez
insc
ot R
iver
6
GIPOP
U. Narrows
3.5
5.9
37
5.9
Androscoggin R
iver Modeling R
eport - May 2002 - P
age 68
Model non-attainment segment with predicted dissolved oxygen (ppm)
Deep HoleGIP4Turner BridgeTwin Bridges
6.2
Figure 33 - Model Prediction of Mimimum Dissolved Oxygen Non-Attainment in Gulf Island Pond Run 2a - Point Sources at Actual Discharge Levels with GIPOP
35' attainment
50' non-attain.
monitor 99-00
5' attainment
20' attainment
70' non-attain.
L. Narrows
0
Assumed position of thermocline
Nez
insc
ot R
iver
6.9 9.2 8.5 8
GIPOP
3.5
6.8 6.9 7.1 7.2 9.5
10.4
20% of the volume of Gulf Island Pond does not meet monthly average Class C dissolved oxygen criteria of 6.5 ppm
Deep HoleGIP4Turner BridgeTwin Bridges U. Narrows
20
6.7
3839
6.7 6.8
3741
6.7
10
30
Dep
th (
ft)
40
40
0.7
7.1
6.8
6.4
5.4
6.1
2.14.63.1
River Mile36 35 34 33 32 31 30 29 28 27
7.8 7.6
7.6 7.1
7.4
6.8
Figure 34 - Model Prediction of 30-Day Dissolved Oxygen Non-Attainment in Gulf Island Pond
5.3
9.6 8.9 8.4
5.2
Run 2a - Point Sources at Actual Discharge Levels with GIPOP
6.4
1.5
50
60
7.3
5.8
70' non-attain. anaerobic
monitor 99-00
35' attainment DO = 6.6
20' attainment DO = 7.2
5' attainment DO = 8.0
50' non-attain. DO = 5.8
Androscoggin R
iver Modeling R
eport - May 2002 - P
age 69
8 7.86.6
6.2
Model non-attainment segment with predicted dissolved oxygen (ppm)
6.8
70
70' non-attain.
monitor 99-00
35' attainment
20' attainment
5' attainment DO
50' non-attain. DO
L. Narrows
0
Assumed position of thermoclineAndroscoggin R
iver Modeling R
eport - May 2002 - P
age 70
Model non-attainment segment with predicted dissolved oxygen (ppm)
Deep HoleGIP4Turner BridgeTwin Bridges
6.1
Figure 35 - Model Prediction of Mimimum Dissolved Oxygen Non-Attainment in Gulf Island Pond Run 3a - Point Sources BOD/TSS at Actual Discharge Levels & Point Source TP at 2/3 Current Levels with GIPOP
7% of the volume of Gulf Island Pond does not meet minimum Class C dissolved oxygen criteria (5 ppm).
Nez
insc
ot R
iver
6
GIPOP
U. Narrows
3.5
5.9
37
5.9 65.8
3839
5.8
41
5.8
10
30
40
20
6.2 8.4 8 7.4
0.7
6.5
6.2
5.9
5
5.6
5.4
24.2
River Mile36 35 34 33 32 31 30 29 28 27
7 6.7
6.9 6.5
7.1
6.28.2 7.88.9
70
1.6
50
60
Dep
th (
ft)40
6.9
6
5.9
5.4
4.6 9.95.8
2.9
4.8
7.6 7.3 6.8
L. Narrows
0
Assumed position of thermocline
10.5 8.3 8 7.5 6.8
3.9
5.7
6.7
6.6
6.1
5.4
Dep
th (
ft)40
7.7
70
2.5
50
60
8.9 8.59.5
27
7.8 7.5
7.6 7.2
7.9
6.9
River Mile36 35 34 33 32 31 30 29 28
1.7
7.4
7
6.8
5.8
6.4
6.3
35.1
7.1 9.3 8.9 8.3
41
6.7
10
30
40
20
6.96.7
3839
6.7
15% of the volume of Gulf Island Pond does not meet the monthly mean Class C dissolved oxygen criteria (6.5 ppm).
Nez
insc
ot R
iver
6.8
GIPOP
U. Narrows
3.5
6.8
37
6.8
Androscoggin R
iver Modeling R
eport - May 2002 - P
age 71
Model non-attainment segment with predicted dissolved oxygen (ppm)
Deep HoleGIP4Turner BridgeTwin Bridges
7
Figure 36 - Model Prediction of 30-Day Average Dissolved Oxygen Non-Attainment in Gulf Island Pond Run 3a - Point Sources BOD/TSS at Actual Discharge Levels & Point Source TP at 2/3 Current Levels with GIPOP
L. Narrows
0
Assumed position of thermocline
10 8 7.5 7 6.2
4
5.6
5.9
5.8
5.4
4.7
Dep
th (
ft)40
7.4
70
3.1
50
60
8.2 7.88.9
27
7 6.8
7 6.7
7.1
6.4
River Mile36 35 34 33 32 31 30 29 28
1.9
6.9
6.5
6.3
5.6
6
6.2
44.8
6 8.1 7.8 7.4
41
5.8
10
30
40
20
5.95.8
3839
5.8
6% of the volume of Gulf Island Pond does not meet minimum Class C dissolved oxygen criteria (5 ppm).
Nez
insc
ot R
iver
5.9
GIPOP
U. Narrows
3.5
5.9
37
5.9
Androscoggin R
iver Modeling R
eport - May 2002 - P
age 72
Model non-attainment segment with predicted dissolved oxygen (ppm)
Deep HoleGIP4Turner BridgeTwin Bridges
6
Figure 37 - Model Prediction of Mimimum Dissolved Oxygen Non-Attainment in Gulf Island Pond Run 4a - Point Sources BOD/TSS at Actual Discharge Levels & Point Source TP at 40% Current Levels with GIPOP
L. Narrows
0
Assumed position of thermoclineAndroscoggin R
iver Modeling R
eport - May 2002 - P
age 73
Model non-attainment segment with predicted dissolved oxygen (ppm)
Deep HoleGIP4Turner BridgeTwin Bridges
6.8
Figure 38 - Model Prediction of 30-Day Average Dissolved Oxygen Non-Attainment in Gulf Island Pond Run 4a - Point Sources BOD/TSS at Actual Discharge Levels & Point Source TP at 40% Current Levels with GIPOP
9% of the volume of Gulf Island Pond does not meet the monthly mean Class C dissolved oxygen criteria (6.5 ppm).
Nez
insc
ot R
iver
6.8
GIPOP
U. Narrows
3.5
6.7
37
6.7 6.86.7
3839
6.7
41
6.7
10
30
40
20
6.7 8.8 8.5 8.1
2.9
7.7
7.3
7.2
6.5
6.9
7.1
55.7
River Mile36 35 34 33 32 31 30 29 28 27
7.7 7.5
7.6 7.4
7.8
7.18.8 8.59.4
70
4
50
60
Dep
th (
ft)40
8.1
6.6
6.5
6.1
5.4 10.67
5
6.5
8.7 8.2 7.7
L. Narrows
0
Assumed position of thermocline
For 10%, 25%, and 50% of actual BOD and TSS discharge levels, respectively ; 1%, 2%, and 4% of the volume of Gulf Island Pond does not meet minimum Class C dissolved oxygen criteria (5 ppm).
5 / 4.6 / 3.8
4.3
5.4 / 5
3.5 / 3.1 2.3
6.1 / 5.8 5.2
70
Androscoggin R
iver Modeling R
eport - May 2002 - P
age 74
Model non-attainment segment with predicted dissolved oxygen (ppm)
Deep HoleGIP4Turner BridgeTwin Bridges
6.9 / 6.8 / 6.5
Figure 39 - Model Prediction of Mimimum Dissolved Oxygen Non-Attainment in Gulf Island Pond Runs 5a,b,c - Point Sources BOD/TSS at 10% / 25% / 50% of Actual Discharge Levels & Point Source TP at 40% Current Levels with GIPOP
Model non-attainment segment with predicted dissolved oxygen (ppm)
Deep HoleGIP4Turner BridgeTwin Bridges
7.4 / 7.3 / 7.2
Figure 40 - Model Prediction of 30-Day Average Dissolved Oxygen Non-Attainment in Gulf Island Pond Runs 5a,b,c - Point Sources BOD/TSS at 10% / 25% / 50% of Actual Discharge Levels & Point Source TP at 40% Current Levels with GIPOP
For 10%, 25%, and 50% of actual BOD and TSS discharge levels, respectively ; 4%, 4%, and 6% of the volume of Gulf Island Pond does not meet the monthly mean Class C dissolved oxygen criteria (6.5 ppm).
4.3 / 3.9 3.4
70
Figure 41Gulf Island Pond Predicted Chlorophyll a
0
2
4
6
8
10
12
14
16
18
20
2628303234363840
River Mile
Ch
l a (
pp
b)
All PS=0
Mills=0
PS=Lic
PS=Actual
PS TP 67%
PS TP = 40%
Algae Bloom ThresholdT
urne
r B
ridge
Upp
er N
arro
ws
Gul
f Is
land
dam
Low
er N
arro
ws
Androscoggin R
iver Modeling R
eport - May 2002 - P
age 76
L. Narrows
0
70
3233
50
60
27 River Mile36
Measured non-attainment area
29 2835 34
Location of thermocline
Deep Hole
Dep
th (
ft)40
40
20
31 3041
10
30
GIP4Turner BridgeTwin Bridges U. Narrows
39 3738
Non-Attainment Volume = 10%
Hypolimnetic Volume < 1%
Figure 42 - Measured Non-Attainment of Minimum Dissolved Oxygen in Gulf Island PondJuly 6, 1999
Androscoggin R
iver Modeling R
eport - May 2002 - P
age 77
Nez
insc
ot R
iver
GIPOP
L. Narrows
0
Nez
insc
ot R
iver
GIPOP
333839 37
Deep HoleGIP4Turner BridgeTwin Bridges U. Narrows
41
10
30
40
20
Dep
th (
ft)40
Measured non-attainment area
29
Location of thermocline
2830 27 River Mile36 3135 34 32
50
60
Androscoggin R
iver Modeling R
eport - May 2002 - P
age 78
Non-Attainment Volume = 23%
Hypolimnetic Volume < 1%
Figure 43 Measured Monthly Average Non-Attainment of Dissolved Oxygen in Gulf Island Pond July 1999
70
Figure 44Component Analysis of Dissolved Oxygen Impact
At Various Depths from Lower Narrows to Gulf Island Dam
-8.00
-6.00
-4.00
-2.00
0.00
2.00
4.00
5' 15' 25' 35' 45' 55' 65'
Depth (ft)
Disso
lved O
xygen
Imp
act
GIPOP SOD Algae P-R PS CBOD* NPS CBOD
*GIPOP is instream aeration 5 miles up river .
Androscoggin R
iver Modeling R
eport - May 2002 - P
age 81
Figure 45Component Analysis as % of Impact
Average Lower Narrows to Gulf Island Dam
-80.00%
-60.00%
-40.00%
-20.00%
0.00%
20.00%
40.00%
60.00%
80.00%
100.00%
5' 15' 25' 35' 45' 55' 65'
Depth (ft)
% o
f Imp
act
GIPOP
SOD
Algae P-R
PS CBOD*
NPS CBOD
*GIPOP is instream aeration 5 miles up river .
Androscoggin R
iver Modeling R
eport - May 2002 - P
age 82
Figure 46 Source of Pollutants Entering Gulf Island Pond
Total Suspended Solids
Background and NPS64%
P&P America8%
Mead Paper Co.6%
International Paper Co.21%
Municipal WWTP's1%
Ultimate CBOD
Background and NPS15%
P&P America27%
Mead Paper Co.32%
International Paper Co.24%
Municipal WWTP's2%
Total Phosphorus
Background and NPS10%
P&P America Paper Co17%
Berlin, NH6%
Gorham, NH2%
Bethel, ME0%
Mead Paper Co25%
Rumford-Mexico, ME2%
International Paper Co35%
Livermore Falls, ME3%
Androscoggin River Modeling Report - May 2002Page 83
