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HomeMy WebLinkAbout11_29_22 Canyon Loop Trail Daily Biomonitoring Report.docxEndemic Environmental Services DAILY BIO-MONITORING REPORT Date:11/29/22 Day:Tuesday Project/Stage of Project:Diamond Bar Canyon Loop Trail Improvement, gabion setup and v swale install Name of Bio-monitor:Karly Moore 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:0645 End Time:1630 Bio-monitoring Notes: ●The biologist surveyed the site for new vegetation disturbance,construction progress,and compliance with permit requirements. ○New ground disturbance was monitored for the concrete V swale at the end of the trail and by the upper gabion wall (Figure 2). ○Gabion cages continue to be assembled and placed along the trail. ●The mini excavator was parked along the trail. The skid steer was parked in the staging area. ●All biological resources were monitored and no adverse impacts occurred. Weather Conditions Conditions:Cloudy and brisk. Temperature:50 F Humidity:86%Wind:E 2mph Cloud Cover %:80 Temperature:63F Humidity:57%Wind:SW 4 mph Cloud Cover %:70% Endemic Environmental Services Construction Activity Name of Contractors Performing Work:DD Systems Relevant Person(s) in charge of construction:Danny Start Time:0700 End Time:1630 Is project work activity compliant?Yes Construction Activity Notes/Equipment Used:Hand tools,Mini excavator -The mini excavator was used for excavating a roughly 90 ft long x 17 inch deep x 17 inch wide trench for the concrete V swale at the south end of the trail by the housing (Figures 3-5). -The mini excavator was used to move the V swale concrete pieces into place. -Shovels were used for concrete V swale placement and backfilling. -Gabion assembly took place using hand tools and hands. -Mini excavator used to digging along north gabion wall (Figure 6). -Anthony from the City of Diamond Bar was on site.They may have discussed a change in the placement of the concrete V swale. Endemic Environmental Services 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:California gnatcatcher (Polioptila californica) Time of Observed Listed Species:0737, 0935 GPS Location of Listed Species (if applicable):1)11S 426224, 3762742 2) 11S 425861, 3762792 Description of Listed Location:Disturbed black sage and mustard CSS Bio-monitor Notes:The California gnatcatcher was heard downslope of the trail about 60 ft, called twice then continued downslope into the drainage. Another California gnatcatcher was heard at the end of the trail while Danny and Raul did the layout for the V swale trench. Endemic Environmental Services 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 Endemic Environmental Services 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: Endemic Environmental Services 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: Endemic Environmental Services 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: Endemic Environmental Services 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: Endemic Environmental Services Non-Listed Species Section Were there any non-listed species observed?Yes If yes, then: Species Common/ Scientific Name: California quail (Callipepla californica),House finch (Haemorhous mexicanus),California towhee (Melozone crissalis), California scrub-jay (Aphelocoma californica),Song sparrow (Melospiza melodia), White-crowned sparrow (Zonotrichia leucophrys), Mourning dove (Zenaida macroura), Northern flicker (Colaptes auratus), American crow (Corvus brachyrhynchos), Wrentit (Chamaea fasciata), Anna’s hummingbird (Calypte anna), Spotted towhee (Pipilo maculatus), Blue-gray gnatcatcher (Polioptila caerulea), California thrasher (Toxostoma redivivum), Cactus wren (Campylorhynchus brunneicapillus),Nuttall’s woodpecker (Dryobates nuttallii), Cedar waxwing (Bombycilla cedrorum), Bewick’s wren (Thryomanes bewickii), Acorn woodpecker (Melanerpes formicivorus), Turkey vulture (Cathartes aura), Oak titmouse (Baeolophus inornatus) Mule deer (Odocoileus hemionus), California ground squirrel (Otospermophilus beecheyi) Bio-monitor Notes: At the beginning of the morning the crew worked on assembling the gabion cages. By mid-morning the workers assembled at the south end of the trail to excavate for a stretch of concrete V swale in an erosion zone. The concrete V swales were installed after lunch. Once the stretch of V swale was installed the crew excavated another area near the north end of the site where the first gabion wall was installed. This measured 8 ft long x 4 ft wide x 8-12 inches deep. After excavation it was backfilled. This was only a new soil disturbance. Anthony from the City of Diamond Bar visited the site during the V swale layout. California gnatcatchers and cactus wren were heard at the north and south end of the project. Endemic Environmental Services Photos Section Figure 1.Overview of the staging area with gabion cages and wood for stairs stored alongside the trail. Endemic Environmental Services Figure 2.Assembled gabion cages placed along the trail. Endemic Environmental Services Figure 3.Trenching for the concrete V swale. Endemic Environmental Services Figure 4.Installation of the concrete V swale. Endemic Environmental Services Figure 5.Almost complete assembly of concrete V swale at south end of trail. Endemic Environmental Services Figure 6.Last excavation of the day; extending the gabion wall at the north end of the trail.