HomeMy WebLinkAbout1_20_23 Canyon Loop Trail Daily Biomonitoring Report.docxEndemic Environmental Services
DAILY BIO-MONITORING REPORT
Date:1/20/23 Day:Friday
Project/Stage of Project:Diamond Bar Canyon Loop Trail Improvement, backfilling and rest area development
Name of Bio-monitor:Alex Eagleton
Location:Diamond Bar
Location Description:Coastal Sage Scrub and Coast Live Oak Woodland, behind residential area
Map # (If applicable):N/A
Bio-monitoring Activity
Start Time:07:30 End Time:09:25
Bio-monitoring Notes:
●The biologist surveyed the site for new vegetation disturbance,construction progress,and compliance
with permit requirements.
○No new vegetation disturbance occurred.
○Materials are still stored along the trail on top of vegetation (Figure 2).
○Workers backfilled soil along the long gabion wall (Figure 4),and installed a bench and sign at
the pad that will become a rest area (Figure 6)
●One CAGN was observed 50 feet away from the project area.
●All biological resources were monitored and no adverse impacts occurred.
Weather Conditions
Conditions:Cloudy and cool
Temperature:38F Humidity:64%Wind:N 3 mph Cloud Cover %:10
Temperature:47F Humidity:88%Wind:S 3 mph Cloud Cover %:0
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Construction Activity
Name of Contractors Performing Work:DD Systems
Relevant Person(s) in charge of construction:Danny Daher
Start Time:07:00 End Time:15:30
Is project work activity compliant?Yes
Construction Activity Notes/Equipment Used:Hand tools,mini excavator, skid steer
-The gabion wall on the upper pad had already been backfilled (Figure 3).Backfilling of the other gabion
walls oniste was in progress.Workers used the mini excavator for this task as well as shovels (Figures 4
and 5).
-The skid steer was used to transport materials from the beginning parking lot to the rest area being
developed on the pad.The sign was installed,and the crew was working on pouring concrete for the
bench (Figure 6).
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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:Costal California gnatcatcher (Polioptila californica californica)
Time of Observed Listed Species:8:00 am
GPS Location of Listed Species (if applicable):34.0033604,-117.7969172
Description of Listed Location:South of the trail 300 yards west of the main staging area.
Bio-monitor Notes:The gnatcatcher was identified by sound, and was heard passing through about 50 feet
downslope of the trail. It did not enter the work area, and no workers were nearby.
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:
Vegetation Impact Section
Was vegetation impacted by project work activity?No
If yes, then:
Habitat Type:
Type of Vegetation Impacted:
What type of impact occurred?
Square Footage of Impacted Area:
Bio-monitor Notes:
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Non-Listed Species Section
Were there any non-listed species observed?Yes
If yes, then:
Species Common/ Scientific Name:
Northern mockingbird (Mimus polyglottos), House finch (Haemorhous mexicanus),California towhee (Melozone
crissalis), Anna’s hummingbird (Calypte anna), White-crowned sparrow (Zonotrichia leucophrys),Spotted
towhee (Pipilo maculatus), Wrentit (Chamaea fasciata),California thrasher (Toxostoma redivivum), California
scrub jay (Aphelocoma californica), Black phoebe (Sayornis nigricans), Bushtit (Psaltriparus minimus), Cassin’s
kingbird (Tyrannus vociferans), Western bluebird (Sialia mexicana), Red-shouldered hawk (Buteo lineatus),
Chipping sparrow (Spizella passerina), Acorn woodpecker (Melanerpes formicivorus), Bewick’s wren
(Thryomanes bewickii)
Bio-monitor Notes:
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Photos Section
Figure 1.Overview of the staging area with rock,wood for stairs and portolet stored along trail.
Figure 2.On the upper trail, there were materials stored on the sides, in the vegetation.
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Figure 3.The area behind the upper gabion cages were backfilled.
Figure 4.Crew was working on backfilling the long line of gabion cages along the trail.
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Figure 5.The excavator was used to transfer loose soil to backfill the cages.
Figure 6.The rest area was under construction, with an installed sign and partially installed bench.