Appendix A Natural Environment Study (Minimal Impacts)

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Natural Environment Study (Minimal Impacts) Measure BIO-1 below. Implementation of Measure BIO-1 will also prevent the spread of invasive plant species that could degrade aquatic habitat areas. BI0-1 Best Management Practices (BMPs) During Construction. All equipment maintenance, staging, and dispensing of fuel, oil, or any other such activities will occur in designated upland areas. The designated upland areas will be located in such a manner as to prevent any spill runoff from entering waters of the United States and other jurisdictional waters. Silt fencing and straw wattle will be placed in such a manner that they are able to catch or filter sediment or other construction -related debris to prevent it from entering aquatic areas, where necessary. All construction -related debris and trashed will be disposed of or secured to prevent any such waste from entering aquatic areas. In order to prevent the spread of invasive species (EO 13112), any plants removed or soil disturbed during the course of construction should be contained and properly disposed off site. All mulch, topsoil, seed mixes, or other plantings used during landscaping activities and any erosion -control BMPs implemented will be free of invasive plant species seeds or propagules. No vegetation listed on the Cal-IPC inventory will be installed on the Project, and all plant palettes proposed for the Project will be reviewed by a Qualified Biologist during the Plans, Specifications, and Estimate (PS&E) phase. 4.1.2. Special -Status Plant Species The plant species listed in Table 2a are considered to be of special concern based on: (1) federal, State, or local laws regulating impacts to them; (2) limited distributions; and/or (3) the presence of habitat required by the special -status plants occurring in the vicinity of the BSA. One plant species (Ventura marsh milk -vetch), which is federally and State -listed as endangered, was identified by the USFWS as potentially occurring within the vicinity of the BSA. The CNDDB indicated three additional special -status plant species (Gambel's water cress, salt spring checkerbloom, and chaparral sand - verbena) with historical occurrences within 3 mi of the BSA. However, all of these historical occurrences are presumed extirpated, and no suitable habitat for these plant species occurs within the BSA. ................................................................................................................................................ . 38 Fairview Street Improvements from 9th Street to 16th Street and Bridge Replacement Project