20190752 Ver 4_Chemours flow-through cells stream photos - Revised Seep A with data sheets_20200813

Waters of the U.S. Technical Report
The Chemours Company
Flow -through Cells - Revised Seep A
June 24, 2020
Stream Data Sheets and Photographs
Chemours - Flow -through Cells - Revised Seep A Streams

N C' DWO Stream Identification Form Version 4.11
Date: 6f 16/2020
Project/Site: SEEP A -worth Crossing
Latitude: 34.84573
Evaluator: Luke Eggering, PWS
County: Bladen County
Longitude:-78.82627
Total Points:
Stream least Mtermittent 11.25
Stream Determination (circle one)
Other
N'A
is at
Ephemeral Intermittent Perennial
e.g. QuadName:
if �: 19 or perennial if �: 30'
A. Geomorphology (Subtotal = 7.5
Absent
Weak
Moderate
Strong
1`, Continuity of channel bed and hank
0
1
2
3
2. Sinuosity of channel along thaleg
0
1
2
3
3. In -channel structure: ex. riffle -pool, step -pool.
ripple -pool sequence
0
1
2
3
4. Particle size of stream substrate
0
1
2
3
5. Activelrelict floodplain
0
1
2
3
6. Depositional bars or benches
0
1
2
3
7. Recent alluvial deposits
0
1
2
3
3. Headcuts
0
1
2
3
9. Grade control
0
0.5
1
1.5
10. Natural valley
0
0.5
1
1.5
11. Second or greater order channel
No = 0
Yes = 3
"artificial ditches are not rated; see discussions in manual
B. Hydrology (Subtotal = 1.0 }
12. Presence of Baseflovl-
0
1
2
3
1. Iron oxidizing bacteria
0
1
2
3
14. Leaf litter
1.5
1
0.5
0
15. Sediment on plants or debris
4
0.5
1
1.5
16. Organic debris lines or piles
0
0.5
1
1.5
17. Soil -based evidence of high water table?
No = 0
Yes = 3
C. Bioloq (Subtotal = 2.75
18. Fibrous roots in streambed
3
2
1
0
1. Rooted upland plants in streambed
3
2
1
0
20. Nlacrobenthos mate diversity and abundance)
0
1
2
3
21. Aquatic Mollusks
0
1
2
3
22. Fish
0
0.5
1
1.5
23. Crayfish
0
0.5
1
1.5
24. Amphibians
0
0.5
1
1.5
25. Algae
0
0.5
1
1.5
26. Wetland plants in streambed
FAC 1 = 0.75; OBL
= 1.5 Other = 0
,-perennial streams may also he identified using other methods. See p. 35 of manual.
Notes:
This is an ephemeral ditch with an existing concrete culvert.
The culvert
will be replaced
with an HDPE culvert at the
same location.
Sketch:
IkTrp
FayettewiJle �Jorth Carolina
2SM6
r

Transverse view of existing culvert at Seep A ephemeral ditch crossing, facing west. The
deteriorated concrete culvert will be replaced.
Seep A north crossing ephemeral channel in the cleared equipment area, facing northeast.
Chemours - Flow -through Cells - Revised Seep A Streams

Seep A north ephemeral channel at its confluence with Seep A north stream, facing north.
Seep A north crossing ephemeral channel location.
Chemours - Flow -through Cells - Revised Seep A Streams

NC D«'Q Stream Identification Form Version 4.11
Date: 6/16/2020
Project/Site: SEEP A -North Branch
Latitude: 34.84529
Evaluator: Luke Eggering, PWS
County: Bladen County
Longitude:-78.82596
Total Points:
Stream is at least intermittent 39.0
Stream Determination (circle one)
Other
N/A
if >_ 99 or perennial if >_ 30"
Ephemeral Intermittent Perennial
e.g. Quad Name:
A. Geomorphology (Subtotal = 20.0 )
Absent
Weak
Moderate
Strong
1 a. Continuity of channel bed and bank
0
1
2
3
2. Sinuosity of channel along thalweg
0
1
2
3
3. In -channel structure: ex. riffle -pool, step -pool,
ripple -pool sequence
0
1
2
3
4. Particle size of stream substrate
0
1
2
3
5. Active/relict floodplain
0
1
2
6. Depositional bars or benches
0
1
2
3
7. Recent alluvial deposits
0
1
2
3
8. Headcuts
0
1
2
3
9. Grade control
0
0.5
1
1.5
10. Natural valley
0
1 0.5
1 1
1 1.5
11. Second or greater order channel
No = 0
1 Yes =13
a artificial ditches are not rated; see discussions in manual
B. Hydrology (Subtotal = 12.0
12. Presence of Baseflow
0
1
2
Q
13. Iron oxidizing bacteria
0
1
2
14. Leaf litter
1.5
1
0.5
0
15. Sediment on plants or debris
0
0
0.5
0.5
1
1
1.5
16. Organic debris lines or piles
1.5
17. Soil -based evidence of high water table?
No = 0
Yes = 3
C. Biology (Subtotal = 7.0 )
18. Fibrous roots in streambed
3
2
1
0
19. Rooted upland plants in streambed
20. Macrobenthos (note diversity and abundance)
3
0
2
1
1
2
0
3
21. Aquatic Mollusks
0
1
2
3
22. Fish
0
0.5
1
1.5
23. Crayfish
0
0.5
1
1.5
24. Amphibians
0
0.5
1
1.5
25. Algae
0
0.5
1
1.5
26. Wetland plants in streambed
FACW = 0.75; OBL = 1.5 Other = 0
*perennial streams may also be identified using other methods. See p. 35 of manual.
Notes -
Sketch:
Fayelteville Norlh Carolina
28306

Seep A north stream facing upstream (west). Notice that the stream branches to the
northwest and southwest and the presence of parallel seep wetlands.
441
Seep A north stream, facing downstream (east)
Chemours - Flow -through Cells - Revised Seep A Streams

Seep A north stream transverse view, facing south.
Seep A north stream flow -through cell location.
Chemours - Flow -through Cells - Revised Seep A Streams

NCDW0 Stream Identification Form Version 4.11
Date: 6f 1612020
Project/Site: SEEP A -South Branch
Latitude: 34.84496
Evaluator: Luke Eggering, PWS
County: Eladen County
Longitude:-78.82556
Total points:
Stream Determination (circle one)
Other
Stream is at least intermittent 35.5
Ephemeral Intermittent Perennial
e.g. Quad Name: N/A
if 2:19 or perennial if 2:30'
A. Geomorphology (Subtotal = 16.5
Absent
Weak
Moderate
Strong
1" Continuity of channel bed and bank
0
1
2
2. Sinuosity of channel along thalweg
0
1
2
3
3. In -channel structure: ex. riffle -pool. step -pool.
ripple -pool sequence
0
1
2
3
4. Particle size of stream substrate
0
1
2
3
5. Active/relict floodplain
0
1
2
3
. depositional bars or benches
0
1
2
3
7. Recent alluvial deposits
0
1
2
3
8. Headcuts
0
1
2
3
9. Grade control
0
0.5
1
1.5
10. Natural valley
0
0.5
1
1.5
11. Second ar greater order channel
No = 0
Yes = 3
"artificial ditches are not rated: see discussions in manual
B. Hydrology (Subtotal = 12.0 }
12. Presence of Baseflow
0
1
2
3
13. Iron oxidizing bacteria
0
1
2
3
14. Leaf litter
1.5
1
0.5
0
15. Sediment on plants or debris
0
0.5
1
1.5
16. Organic debris lines or piles
0
0.5
1
1.5
17. Soil -based evidence of high water table?
No = 0
Yes = 3
C. Biolo. (Subtotal = 7.0
18. Fibrous roots in streambed
3
2
1
0
19. Footed upland plants in streambed
3
2
1
0
20. Macrobenthos (note diversity and abundance)
0
1
2
3
21. Aquatic Mollusks
0
1
2
3
22. Fish
0
0.5
1
1.5
23. Crayfish
0
0.5
1
1.5
24. Amphibians
0
0.5
1
1.5
25. Algae
0
0.5
1
1.5
25. Wetland plants in streambed
FACW = 0.75: OBI =
1.5 Other = 0
'perennial streams may also be identified using other methods. See p. 35 of manual.
Notes:
Recent stormwater events had washed the channel of previous algae and
Sketch
_ Fayetteville Naih Carolina
2$3U6
iron deposits.

Seep A south stream, facing upstream (south)
F F k F
I
�. •a - .j. F 1y� { rya � a�' s
y �
Seep A south stream, facing downstream (northeast).
Chemours - Flow -through Cells - Revised Seep A Streams

Transverse view of Seep A south stream, facing east.
s '�r . k61 •> r` 'a• i a r sC::. F '� Y r '� `Z � t '�i„ ex� � "v�i'
3
-
�
f
1�"'
ri Ise .
Seep A south stream flow -through cell location.
Chemours - Flow -through Cells - Revised Seep A Streams

NC'DWQ Stream Identification Form Version 4.11
Date: 6/1612020
Project/Site: SEEP A -South Crossing
Latitude: 34.84451
Evaluator: Luke Eggering, PWS
County: Bladen County
Longitude:-78.82626
Total Points:
Stream Determination (circle one)
Other
Stream is at feast intermittent 34.75
Ephemeral Intermittent Perennial
e.g. Quad Name: N/A
if 2:19 or perennial if 2:30'
A. Geomorphology (Subtotal = 17 }
Absent
leak
Moderate
Strong
1" Continuity of channel bed and bank
0
1
2
3
2. Sinuosity of channel along thalweg
0
1
2
3
3. In -channel structure: ex. riffle -pool, step -pool.
ripple -pool sequence
0
1
2
3
4. Particle size of stream substrate
0
1
2
3
5. Active/relict floodplain
0
1
2
3
6. Depositional bars or benches
0
1
2
3
7. Recent alluvial deposits
0
1
2
3
3. Headcuts
0
1
2
3
9. Grade control
0
0.5
1
1.5
10. Natural valley
0
0.5
1
1.5
11. Second or greater order channel
No = 0
lies = 3
`' artificial ditches are not rated; see discussions in manual
B. Hydrology {Subtotal = 12.0
12. Presence of Baseflow
0
1
2
3
13. Iron oxidizing bacteria
0
1
2
3
14. Leaf litter
1.5
1
0.5
0
15. Sediment on plants or debris
0
0.5
1
1.5
16. Organic debris lines or piles
0
0.5
1
1.5
17. Soil -based evidence of high water table?
No = 0
Yes = 3
C. Biology {Subtotal = 5.75
18. Fibrous roots in streambed
3
2
1
0
19. Rooted upland plants in streambed
3
2
1
0
20. Nlacrobenthos (note diversity and abundance)
0
1
2
3
21. Aquatic Mollusks
0
1
2
3
22. Fish
0
0.5
1
1.5
23. Crayfish
0
0.5
1
1.5
24. Amphibians
0
0.5
1
1.5
25. Algae
0
0.5
1
1.5
26. Wetland plants in streambed
FACW = 0.75.. 0BL =
1.5 Other = 0
"perennial streams may also be identified using other methods. See p. 35 of manual.
Notes:
Existing damaged HDPE culvert will be replaced.
Stream flow is perennial
primarily from groundwater
in adjacent
uplands.
Sketch,
"
F9yetpeville Nprlh Cerglind
283U6
kxJg-79.62625ABfi 1.1 34.04456756

Seep A south crossing upstream from access road, facing upstream (southwest).
Seep A south crossing downstream from culvert, facing downstream (northeast).
Chemours - Flow -through Cells - Revised Seep A Streams

Transverse view of Seep A south crossing stream, facing west. Note that the existing culvert
at this crossing should be repaired/replaced with a new culvert or hardened crossing.
Seep A south crossing stream location.
Chemours - Flow -through Cells - Revised Seep A Streams