HomeMy WebLinkAbout10_28_22 Canyon Loop Trail Daily Biomonitoring Report.docx.pdfEndemic Environmental Services
DAILY BIO-MONITORING REPORT
Date:10/28/22 Day:Friday
Project/Stage of Project:Diamond Bar Canyon Loop Trail Improvement/Excavating & Trail Maintenance
Name of Bio-monitor:Lyell Buttermore
Location:Diamond Bar
Location Description:Coastal Sage Scrub and Coast Live Oak Woodland
Map # (If applicable):N/A
Bio-monitoring Activity
Start Time:0700 End Time:1600
Bio-monitoring Notes:
-Male and female CAGN were observed at the beginning of the trail.No CAGN were observed to be
impacted by project activities.
-The Biologist surveyed areas ahead of crews and monitored vegetation removal activities that took place
in the afternoon.
-It is recommended that gasoline tanks and grease be stored in proper secondary containment after
fueling/greasing heavy equipment.
Weather Conditions
Conditions:
Temperature:52°F Humidity:63%Wind:SW 2mph Cloud Cover %:0
Temperature:75°F Humidity:28%Wind:NE 6 mph Cloud Cover %:55
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Construction Activity
Name of Contractors Performing Work:DD Systems
Relevant Person(s) in charge of construction:Danny
Start Time:0700 End Time:1430
Is project work activity compliant?Yes
Construction Activity Notes/Equipment Used:Mini excavator,shovels, skid steer
A mini excavator was used to dig and smooth out the bench area on the slope on the southern trail (Figure 2).
This area will be the site for a new bench and trailhead.The southern trail was widened and leveled to make
space for the gabion installation.The crew also used shovels to even out the ground and laid down hose and PVC
pipe for wind erosion control.
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Biological Resource Findings
Were there any listed species observed on or near site?Yes
If yes, then:
Was listed species impacted due to work?No
Species Common/ Scientific Name:Coastal California gnatcatcher (Polioptila californica californica)
Time of Observed Listed Species:07:15, 12:45
GPS Location of Listed Species (if applicable):34,003174,-117.796608
Description of Listed Location:The male and female were observed in coastal sage scrub adjacent to oak
woodland below the northern slope. The bird was observed and recognized by its call. Multiple CAGN were
heard calling throughout the coastal sage scrub in this area (Figure 3).
Bio-monitor Notes:The coastal California gnatcatcher was observed outside the trail improvement area.The
location was between the northern trail and a grove of California live oaks (Quercus agrifolia).
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Species Take Section
Was there a take of any listed or regulated species?No
If yes, then:
What type of take occurred?
Species Common Name/ Scientific Name:
Age/Class:
Gender:
Did take occur due to project work activity?
GPS Location of Take (if applicable):
Description Location of Take:
Bio-monitor Notes
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Nest Findings
Were there any nests observed on or near project site?No
If yes, then:
Were nests active or non-active?
Nest(s):
Species (If identifiable):
Time Observed:Nesting Status:
GPS Point of Nest:
Location Description of Nest:
Biomonitor Notes:
Other Nest Notes:
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Nest Removal Section
Were there any Nests removed?No
If yes, then:
Was the MBTA Nest active or non-active?
Time of Nest Removal?
Why was the nest removed?:
Species Scientific/ Common Name:
GPS Location of Removed Nest (If applicable):
Bio-monitor Notes:
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Wetlands and Jurisdictional Waters of the U.S.
Are Wetlands or Jurisdictional Waters of the United States Present?No
If yes, then:
What Watershed?
Were Wetlands or Jurisdictional Waters of the United States impacted by project work activity?No
What type of impact occurred?
Bio-monitor Notes:
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Vegetation Impact Section
Was vegetation impacted by project work activity?Yes
If yes, then:
Habitat Type:Coastal sage scrub
Type of Vegetation Impacted:Prickly pear cactus (Opuntia littoralis),California buckwheat (Eriogonum
fasciculatum), black sage (Salvia mellifera), California sagebrush (Artemisia californica)
What type of impact occurred?Minor veg clearing during trail widening activities (Figure 4).
Square Footage of Impacted Area:305 sq ft or .007 acres
Bio-monitor Notes:Small sections of native sage scrub were removed by the excavator and hand shovels when
widening the trail and preparing the southern trail for gabion installation.The trail was expanded in one section
on the northern side of the trail an average of 2 feet wider for a stretch of 115 feet (230 sq ft).The second section
was widened by 1 foot for 75 feet along the trail (75 sq ft).
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Non-Listed Species Section
Were there any non-listed species observed?Yes
If yes, then:
Species Common/ Scientific Name:
Northern flicker (Colaptes auratus),American crow (Corvus brachyrhynchos),mourning dove (Zenaida
macroura),Say’s phoebe (Sayornis saya),black phoebe (Sayornis nigricans),common raven (Corvus corax),
red-tailed hawk (Buteo jamaicensis),house finch (Haemorhous mexicanus),California thrasher (Toxostoma
redivivum),California quail (Callipepla californica),northern mockingbird (Mimus polyglottos),California
towhee (Melozone crissalis),Anna’s hummingbird (Calypte anna),California scrub-jay (Aphelocoma
californica),turkey vulture (Cathartes aura),wrentit (Chamaea fasciata),white-crowned sparrow (Zonotrichia
leucophrys),California ground squirrel (Otospermophilus beecheyi),side-blotched lizard (Uta stansburiana),
western fence lizard (Sceloporus occidentalis).
Bio-monitor Notes:
Two native California scorpions (Paruroctonus silvestrii)and one tiger centipede (Scolopendra polymorpha)
were relocated roughly 50 feet away from project activities during trail widening.
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Photos Section
Figure 1.Site overview prior to the start of work.
Figure 2. Excavation and digging activities that took place in the new bench area.
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Figure 3.Coastal sage scrub where two coastal California gnatcatchers were identified.
Figure 4.Trail widening activities that impacted 305 sq ft (.007 ac) of coastal sage scrub.
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Figure 5.Trail maintenance in close proximity to a protected oak tree.
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