20240032 Ver 1_04_RTP_GreenwayTrail_StreamDataForms_20240104

North Carolina Division of Water Quality - Stream Identification Form, Version 4.11
Date: 12/12/2023
Project/Site: RTP Greenway Trails -
Northern Area: Stream S1
Latitude: 35.897094
Evaluator: E. Radford, WPIT, CA (Kimley-
Count Durham Count
y• y
Longitude:-78.852908
Horn), C. Brown (Kimley-Horn)
Total Points: 25
•on
Stream Determi (circle one)
Other
Stream is at least intermittent
Ephemeral termitten Perennial
e.g. Quad Name: Southeast Durham
if >_ 19 or perennial if >_ 30
A. Geomorphology Subtotal = 11.5
Absent
Weak
Moderate
Strong
Score
1a. Continuity of channel bed and bank
0
1
2
3
2
2. Sinuosity of channel along thalweg
0
1
2
3
2
3. In -channel structure: ex. riffle -pool, step -pool, ripple-
poolsequence
0
1
2
3
2
4. Particle size of stream substrate
0
1
2
3
2
5. Active/relic floodplain
0
1
2
3
1
6. Depositional bars or benches
0
1
2
3
0
7. Recent alluvial deposits
0
1
2
3
1
8. Headcuts
0
1
2
3
1
9. Grade control
0
0.5
1
1.5
0
10. Natural valley
0
0.5
1
1.5
0.5
11. Second or greater order channel
No = 0
Yes = 3
0
B. Hydrology Subtotal = 8.5
12. Presence of Baseflow
0
1
2
3
3
13. Iron oxidizing bacteria
0
1
2
3
0
14. Leaf litter
1.5
1
0.5
0
1.5
15. Sediment on plants or debris
0
0.5
1
1.5
0.5
16. Organic debris lines or piles
0
0.5
1
1 1.5
0.5
17. Soil -based evidence of high water table?
No = 0
Yes = 3
3
C. Biology Subtotal = 5
18. Fibrous roots in streambed
3
2
1
0
2
19. Rooted upland plants in streambed
3
2
1
0
3
20. Macrobenthos (note diversity and abundance)
0
1
2
3
0
21. Aquatic Mollusks
0
1
2
3
0
22. Fish
0
0.5
1
1.5
0
23. Crayfish
0
0.5
1
1.5
0
24. Amphibians
0
0.5
1
1.5
0
25. Algae
0
0.5
1
1.5
0
26. Wetland plants in streambed
FACW = 0.75; OBL
= 1.5; Other = 0
0
'perennial streams may also be identified using other methods. See p. 35 of manual.
Notes:
Stream S1 is a small, narrow intermittent reach originating at a wetland offsite
and flowing into a culvert under Laboratory Drive. Stream S1 has continuous,
shallow banks, with strong baseflow and one small headcut observed. No biology
was observed at the time of data collection.

North Carolina Division of Water Quality - Stream Identification Form, Version 4.11
Date: 12/12/2023
Project/Site: RTP creenway Trails -
Northern Area: Stream S2
Latitude: 35.901071
Evaluator: E. Radford, WPIT, CA (Kimley-
Count Durham Count
Y Y
Longitude:-78.857143
Horn), C. Brown (Kimley-Horn)
Total Points: 33.5
Stream Determination (circle one)
Other
Stream is at least intermittent
Ephemeral Intermittent erenni
e.g. Quad Name: Southeast Durham
if >_ 19 or perennial if >_ 30
A. Geomorphology Subtotal = 18.5
Absent
Weak
Moderate
Strong
Score
1a. Continuity of channel bed and bank
0
1
2
3
2
2. Sinuosity of channel along thalweg
0
1
2
3
3
3. In -channel structure: ex. riffle -pool, step -pool, ripple-
poolsequence
0
1
2
3
3
4. Particle size of stream substrate
0
1
2
3
3
5. Active/relic floodplain
0
1
2
3
1
6. Depositional bars or benches
0
1
2
3
1
7. Recent alluvial deposits
0
1
2
3
2
8. Headcuts
0
1
2
3
0
9. Grade control
0
0.5
1
1.5
0
10. Natural valley
0
0.5
1
1.5
0.5
11. Second or greater order channel
No = 0
Yes = 3
3
B. Hydrology Subtotal = 9
12. Presence of Baseflow
0
1
2
3
3
13. Iron oxidizing bacteria
0
1
2
3
0
14. Leaf litter
1.5
1
0.5
0
1.5
15. Sediment on plants or debris
0
0.5
1
1.5
1
16. Organic debris lines or piles
0
0.5
1
1 1.5
0.5
17. Soil -based evidence of high water table?
No = 0
Yes = 3
3
C. Biology Subtotal = 6
18. Fibrous roots in streambed
3
2
1
0
3
19. Rooted upland plants in streambed
3
2
1
0
3
20. Macrobenthos (note diversity and abundance)
0
1
2
3
0
21. Aquatic Mollusks
0
1
2
3
0
22. Fish
0
0.5
1
1.5
0
23. Crayfish
0
0.5
1
1.5
0
24. Amphibians
0
0.5
1
1.5
0
25. Algae
0
0.5
1
1.5
0
26. Wetland plants in streambed
FACW = 0.75; OBL
= 1.5; Other = 0
0
'perennial streams may also be identified using other methods. See p. 35 of manual.
Notes:
Stream S2 (Burdens Creek) is a weak perennial stream originating offsite and
flowing north to south through the project study area. Stream S2 has strong
baseflow, sinuosity, and in channel structure throughout. No biology was
observed at the time of data collection.

North Carolina Division of Water Quality - Stream Identification Form, Version 4.11
Date: 12/12/2023
Project/Site: RTP creenway Trails -
Northern Area: Stream S3
Latitude: 35.901050
Evaluator: E. Radford, WPIT, CA (Kimley-
Count Durham Count
y• y
Longitude:-78.857016
Horn), C. Brown (Kimley-Horn)
Total Points: 19
Stream Determination (circle one)
Other
Stream is at least intermittent
Ephemeral <termitte Perennial
e.g. Quad Name: Southeast Durham
if >_ 19 or perennial if >_ 30
A. Geomorphology Subtotal = 8.5
Absent
Weak
Moderate
Strong
Score
1a. Continuity of channel bed and bank
0
1
2
3
1
2. Sinuosity of channel along thalweg
0
1
2
3
1
3. In -channel structure: ex. riffle -pool, step -pool, ripple-
poolsequence
0
1
2
3
1
4. Particle size of stream substrate
0
1
2
3
1
5. Active/relic floodplain
0
1
2
3
0
6. Depositional bars or benches
0
1
2
3
1
7. Recent alluvial deposits
0
1
2
3
1
8. Headcuts
0
1
2
3
2
9. Grade control
0
0.5
1
1.5
0.5
10. Natural valley
0
0.5
1
1.5
0
11. Second or greater order channel
No = 0
Yes = 3
0
B. Hydrology Subtotal = 6.5
12. Presence of Baseflow
0
1
2
3
1
13. Iron oxidizing bacteria
0
1
2
3
0
14. Leaf litter
1.5
1
0.5
0
1
15. Sediment on plants or debris
0
0.5
1
1.5
0
16. Organic debris lines or piles
0
0.5
1
1 1.5
1.5
17. Soil -based evidence of high water table?
No = 0
Yes = 3
3
C. Biology Subtotal = 4
18. Fibrous roots in streambed
3
2
1
0
2
19. Rooted upland plants in streambed
3
2
1
0
2
20. Macrobenthos (note diversity and abundance)
0
1
2
3
0
21. Aquatic Mollusks
0
1
2
3
0
22. Fish
0
0.5
1
1.5
0
23. Crayfish
0
0.5
1
1.5
0
24. Amphibians
0
0.5
1
1.5
0
25. Algae
0
0.5
1
1.5
0
26. Wetland plants in streambed
FACW = 0.75; OBL
= 1.5; Other = 0
0
'perennial streams may also be identified using other methods. See p. 35 of manual.
Notes:
Stream S3 is a weak intermittent channel originating at a headcut below a
roadside stormwater ditch and eventually flows into Stream S2 within the project
study area. Discontinuous, ponded channel baseflow was observed throughout
stream S3 along with strong debris lines. No biology was observed at the time of
data collection.