| Reach:
Above Confluence with Virgin
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Stream:
Ash Creek
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Watershed:
Virgin
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State: UT
Survey Date:
Sat, 05/22/2010 - 9:55am
Background information available.
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| Observers:
Cheryl Decker (and RSRA trainees)
E-mail: Cheryl_Decker@nps.gov
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Phone: (435) 259-6205
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| (UTM) Zone: 12
Upstream (UTM): 0296859E
Upstream (UTM): 4120393N
Elevation: 915 meters
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| NAD: 83
Downstream (UTM): 0296872E
Downstream (UTM): 4119932N
Elevation: 913 meters
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(UTM) Start: 0296996E
(UTM) Start: 4120138N
Upstream or down? Upstream
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|
Scores:
WQ 1.5
HG 4.4
F/AH 2.7
RV 3.4
TWH 1.8
Overall 2.8
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| Water Quality |
|
1 |
1 |
Algal Growth |
%=57 |
| 2 |
2 |
Channel Shading |
%=4 |
|
| 1.5 |
|
Mean Score |
| Notes: |
|
|
| Hydrogeomorphology |
| 4 |
3 |
Floodplain Connection |
| 5 |
4 |
Vertical Bank Stability |
%=2 |
| 5 |
5 |
Hydraulic Habitat Diversity |
| 5 |
6 |
Riparian Area Soil Integrity |
| 3 |
7 |
Beaver Activity |
|
| 4.4 |
|
Mean Score |
|
Notes: New floodplain. 2005 floodplain inundated historic floodplain
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|
|
| Fish/Aquatic Habitat |
| 1 |
8 |
Riffle-Pool Distribution |
| 1 |
9 |
Underbank Cover |
%=0 |
| 3 |
10 |
Cobble Embeddedness |
%=33 |
| 3 |
11 |
Aquatic Macroinvertebrate Diversity |
| 3 |
12 |
Large Woody Debris |
| 5 |
13 |
Overbank Cover |
|
| 2.7 |
|
Mean Score |
|
Notes: Aquatic macro-inverts = worm, midgefly, black fly larvae. We saw no fish
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|
|
| Riparian Vegetation |
| 3 |
14 |
Riparian Zone Plant Community Structure |
|
G=84%
S=49%
MC=0%
UC=0%
avg=33.3%
|
| 4 |
15 |
Shrub Demography and Recruitment |
| 5 |
16 |
Tree Demography and Recruitment |
| 1 |
17 |
Non-native Herbaceous Plant Species |
| 4 |
18 |
Non-native Woody Plant Species |
| 5 |
19 |
Grazing Impacts on Ground Cover |
%=0 |
| 2 |
20 |
Browsing Impacts on Shrubs and Small Trees |
|
| 3.4 |
|
Mean Score |
|
Notes: Dominant shrub = coyote willow, dominant tree = cottonwood. Abundant cattails, and abundant stoloniferous grass
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|
|
| Terrestrial Wildlife Habitat |
| 3 |
21 |
Shrub Patch Density |
| 1 |
22 |
Mid-canopy Patch Density |
| 2 |
23 |
Upper Canopy Patch Density |
| 1 |
24 |
Fluvial Habitat Density |
|
| 1.8 |
|
Mean Score |
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| Scores |
| WQ |
HG |
F/AH |
RV |
TWH |
OVERALL |
| 1.5 |
4.4 |
2.7 |
3.4 |
1.8 |
2.8 |
|
|
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| Overall Comments |
| Outlet pipe above upstream end of study reach (entry of pollutants?) Above pipe, channel lined with cottonwoods. |
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