Appendix A Natural Environment Study (Minimal Impacts)

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Natural Environment Study (Minimal Impacts) emergence survey was conducted on June 15, 2018, in order to determine whether the roosting features identified during the habitat assessment are occupied by special - status bat species or bat colonies. The survey was initiated one-half hour before sunset and continued until one full hour after sunset. Observers were stationed at vantage points in positions that would optimize visibility of any bats that may exit or enter the roost feature(s) being surveyed, and to correlate the acoustic data recorded with visual observations. Acoustic detectors were placed in locations where they could record any bats emerging from adjacent roost features as well as to detect foraging bats. 2.3. Personnel and Survey Dates Table 1 provides the survey types, dates, and personnel involved during the survey efforts. Table 1: Survey Data Survey Type Survey Date(s) Survey Personnel General Biological Resources Survey and Habitat Assessment February 20, 2018 Bo Gould and Lonnie Rodriguez Jurisdictional Delineation February 20, 2018 Lonnie Rodriguez and Bo Gould Daytime Bat Habitat Suitability Assessment February 13, 2018 Jill Carpenter and Heather Monteleone Nighttime Bat Emergence Survey June 15, 2018 Jill Carpenter, Heather Monteleone, Lonnie Rodriguez, and Bo Gould 2.4. Agency Coordination and Professional Contacts No resource agency coordination has occurred to date. No USFWS coordination beyond the IPaC trust resource report is anticipated because there is no habitat for listed species in the BSA. Impacts to potentially jurisdictional waters located within the BSA (e.g., the Santa Ana River channel) would be within the allowable parameters of the USACE Nationwide Permit Program. Future coordination with the USACE, CDFW, and RWQCB would occur due to proposed work in the Santa Ana River channel, which is a known jurisdictional waterway. 2.5. Limitations That May Influence Results The collection of biological field data is normally subject to environmental factors that cannot be controlled or reliably predicted. Consequently, the interpretation of field data must be conservative and consider the uncertainties and limitations necessarily imposed by the environment. However, due to the experience and qualifications of the consulting biologists involved in the surveys and the lack of ................................................................................................................................................ . 14 Fairview Street Improvements from 9th Street to 16th Street and Bridge Replacement Project