20201257 Ver 1_DWR Form - S1_20201117

NC Division of Water Quality -Methodology for Identification of Intermittent and
Perennial Streams and Their Origins v. 4.11
NC DWQ Stream Identification Form Version 4.11
Date: 2020.09.10
Project/site: Grasshopper Rd
Latitude: 35.7478240
Evaluator: J. Lawler
County: Wake
Longitude: _78.4921170
Total Points:
Stream is at least intermittent 37.25
Stream Determination (circle one)
Perennial
Other
Garner NC
e.g. Quad Name. 7
if>_ 19 or perennial if>_ 30"
A. Geomorphology (Subtotal = 18.5 )
Absent
Weak
Moderate
Strong
1a. Continuity of channel bed and bank
0
1 0
2 0
30
2. Sinuosity of channel along thalweg
0
1 0
2 •
3
3. In -channel structure: ex. riffle -pool, step -pool,
ripple -pool sequence
0 0
10
2 0
30
4. Particle size of stream substrate
0 0
1 0
2 0
3
5. Active/relict floodplain
0 0
1
2
30
6. Depositional bars or benches
0
1
2 n
3 •
7. Recent alluvial deposits
0 •
1 0
20
3
8. Headcuts
0 •
1
2
3
9. Grade control
0 •
0.50
10
1.50
10. Natural valley
0 0
1 0.5
1 0
1 1.50
11. Second or greater order channel
No = 00
Yes = 3 .
a artificial ditches are not rated; see discussions in manual
B. Hydrology (Subtotal = 10 )
12. Presence of Baseflow
00
10
2 0
30
13. Iron oxidizing bacteria
0
10
2 •
3
14. Leaf litter
1. •
1 Q
0.
0
15. Sediment on plants or debris
0
0.5 •
1
1.5
16. Organic debris lines or piles
00
0.5
1 •
1.5
17. Soil -based evidence of high water table?
No = 0
Yes = 3
C. Biology (Subtotal = 8.75 )
18. Fibrous roots in streambed
3
22
in
0
19. Rooted upland plants in streambed
3 •
2
10
0
20. Macrobenthos (note diversity and abundance)
0
1
2 •
3
21. Aquatic Mollusks
0 •
10
2
3
22. Fish
0 •
0.50
in
1.5
23. Crayfish
0 .
0.5
1
1.5
24. Amphibians
0 •
0.5
1
1.5
25. Algae
0 •
0.5 U
10
1.5
26. Wetland plants in streambed
10
FACW = 0.75(•)OBL =
1.500ther = 00
'perennial streams may also be identified using other methods. See p. 35 of manual.
Notes:
Sketch: S01- UT to Neuse River
41