55C - ALTON AVE OVERCROSSING @ SR 55

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Draft Findings of Fact and Mitigation Monitoring Reporting Program (applies to CEQA only) BIO-1 BIO-2 BIO-3 BIO-4 Invasive weeds shall be removed from the project area under the supervision of a botanist qualified in the identification of invasive species. Pursuant to Executive Order 13112 on invasive species, "Mitigation or eradication measures may include but would not be limited to: cleaning of equipment to prevent spread of weeds; use of weed-free hay bales for erosion control; prompt revegetation of exposed soils; and use of native plant materials in new plantings that will resist introduction or spread of noxious weeds." Invasive weed removal shall be conducted prior to seed set (as determined by monthly spring surveys by a qualified botanist) to minimize the spread of invasive weed seeds in the project area. If it is not possible to remove weeds prior to seed set, measures to minimize the release of invasive weed seeds during weed removal (e.g., manual weed removal while placing weeds in plastic bags) shall be used. If necessary for erosion-control, only weed-free haybales shall be used. Mitigation for ACOE Waters of the US shall occur at a mitigation ratio of 1: 1 be coordinated with ACOE. Mitigation for CDFG jurisdictional waters shall occur at a mitigation ratio of 1: 1. With Mitigation the Effects are Found to be: ( ) Significant (x) Not Significant Finding: 1. (x) Changes or alterations have been required in, or incorporated into, the project, which avoid the significant environmental effect. (Subd. [a][l].) 2. () Such changes or alterations are within the responsibility and jurisdiction of another public agency and not the agency making the finding. Such changes have been adopted by such other agency or can and should be adopted by such other agency. (Subd. [a][2].) 3. ( ) Specific economic, legal, social, technological, or other considerations, including provision of employment opportunities for highly trained workers, make infeasible the mitigation measures or project alternatives identified in the Final EIR/EA (Subd. [a][3].) Rationale: Implementation of these mitigation measures will reduce impacts to biological resources, particularly regarding invasive species, to levels less than significant by ensuring that all activities prior and during construction do not promote spreading of invasive species. No further mitigation is required. Reference: The discussion on setting, impacts, and mitigation related to Biological Resources are included in Section 4.7 of the FEIR/EA prepared for the Alton Avenue Overcrossing at SR- 55. 7.7 FLOODPLAIN Alton Avenue Overcrossing at SR-55 K-22 April July 2005 55C-40