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Soil Investigations for Data Collection in the Delta Initial Study/Proposed Mitigated Negative Declaration 95 potential or atypical dens will be at least 50 feet and will be demarcated with four to five flagged stakes. Exclusion zone radii for known dens will be at least 100 feet and will be demarcated with staking and flagging that encircles each den or cluster of dens but does not prevent access to the den by kit fox. iii. If a natal or pupping den is found within the Impact Area or within 200- feet of the Impact Area boundary, USFWS and CDFW will be notified immediately. The den will not be disturbed or destroyed, depending on the applicable site conditions and characteristics of the den, the soil investigation site may be moved. SPECIAL-STATUS PLANTS The following section includes species accounts for each of the special-status plant species that has potential to occur within the Study Area and provides effects determinations relative to the Proposed Project’s anticipated impacts. These accounts can be found in Attachment A. For all 79 plant species that have some potential to occur within the Study Area, it was determined that potential impacts relative to the Proposed Project would be “Less Than Significant with Mitigation Incorporated”. Large-flowered fiddleneck (Amsinckia grandiflora) Large-flowered fiddleneck has a CRPR of 1B.1 and is listed as Endangered under FESA and CESA. This species is an annual herb in the forget-me-not family, and it blooms from April through May, and sometimes in March (CNPS 2019). It is endemic to California, and its current range includes the northwestern San Joaquin Valley (CNPS 2019; Jepson Flora Project 2019). It typically grows in cismontane woodland and valley and foothill grassland (CNPS 2019). Large- flowered fiddleneck is threatened by agriculture, development, grazing, non- native plants, trampling and altered fire frequency (CNPS 2019). This species has moderate potential to occur within the Study Area based on the presence of potentially suitable habitat. Implementation of Mitigation Measures MM BIO-18 and MM BIO-19 would reduce potential impacts to large-flowered fiddleneck to: Less than Significant with Mitigation Incorporated. MM BIO-18: Botanical Resources a. All botanical evaluations will be conducted by a qualified botanist, who at a minimum shall have experience conducting floristic field surveys; knowledge of plant taxonomy and plant community ecology and classification; familiarity with the plants of the area, including special-status and locally significant plants; familiarity with the appropriate state and federal statutes related to plants and plant collecting; and experience with analyzing impacts of a project on native plants and communities.