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B IOLOGICAL A SSESSMENT A PRIL 2020 S AN L EANDRO T REATMENT W ETLAND P ROJECT S AN L EANDRO, A LAMEDA C OUNTY, C ALIFORNIA P:\TER2001\BA\San Leandro Treatment Plant BA 4‐7‐20.docx (04/07/20) 29 6.0 CONCLUSIONS This BA forms the basis for the conclusions on the effects of the proposed project on the 20 federally listed species in Table A. In addition, conclusions regarding effects on designated critical habitat for two federally listed fish species, as well as effects on EFH, are based on the information contained herein. Effect determinations are summarized below in Table B. Table B: Effect Determinations for Federally Listed Species, Designated Critical Habitat, and Essential Fish Habitat Potentially Affected by the Proposed Project Species or Designated Habitat Determination Rationale Federally Listed Species (Endangered Species Act) North American green sturgeon (southern DPS) May affect, not likely to adversely affect Outfall modification/replacement effects will be minimized by work being restricted to times of low tide and through the implementation of BMPs and other conservation measures. Steelhead (Central California coast DPS) May affect, not likely to adversely affect Outfall modification/replacement effects will be minimized by work being restricted to times of low tide and through the implementation of BMPs and other conservation measures. Species is unlikely to occur in Action Area during non‐migratory time of year. Longfin smelt May affect, not likely to adversely affect Outfall modification/replacement effects will be minimized by work being restricted to times of low tide and through the implementation of BMPs and other conservation measures. Species is unlikely to occur in Action Area during non‐migratory time of year. No historical occurrences of longfin smelt have been recorded as part of the San Francisco Bay Study at the CDFW survey stations near the project site (CDFW 2018). NMFS‐designated Critical Habitat North American green sturgeon (southern DPS) critical habitat Not likely to adversely affect Temporary water quality and turbidity effects and reduction in migratory and foraging space due to outfall work will be short term in duration and will not adversely modify species’ critical habitat. Steelhead (Central California coast DPS) critical habitat Not likely to adversely affect Temporary water quality and turbidity effects and reduction in migratory and foraging space due to outfall work will be short term in duration and will not adversely modify species’ critical habitat. Essential Fish Habitat (Magnuson‐Stevens Act) Coastal Pelagic Species, Pacific Coast Groundfish, and Pacific Salmon Fishery Management Plans (FMPs) May affect, not likely to adversely affect Outfall modification/replacement effects will be minimized by work being restricted to times of low tide and through the implementation of BMPs (e.g., controlling sediment and turbidity).