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CENTURY <br />"41/h/FWEST <br />E N G I N E E R 1 N G <br />issue the Section 401 Water Quality Certification in advance of the Corps Section 404 Individual Permit. <br />Public noticing and coordination with stakeholders and Tribes is also required for the Individual Permit. <br />Thus, the overall timeline for securing the required permits for the proposed airfield improvements is <br />anticipated to be between 12 and 24 months. <br />Advanced Engineering Design & environmental investigation Needed to Complete NEPA Analysis. <br />4. PERMIT SUBMITTAL REQUIREMENTS <br />Environmental permits relevant to the proposed improvements will need to be submitted to the <br />approving agencies before the Draft EA can be published and released for public comment. Due to <br />unanticipated and unavoidable wetland and floodway impacts, these permit applications will require -a <br />greater level of design than included in the original scope of work. The necessary permit applications <br />require that the following materials be addressed to a level that is sufficient for approval by the <br />regulatory authorities and will not subsequently require substantive changes, as the project schedule <br />cannot support revising or resubmitting the permit application. To prepare permit applications that meet <br />the needs of the regulatory authorities, additional design effort is required for some project components. <br />TABLE 1 provides a list of the submittal requirements for anticipated permits, indicates if the permit <br />application was included in the original scope of work, and the level of design needed to prepare each <br />component of the permit application. <br />TABLE 1. SUBMITTAL REQUIREMENTS FOR ANTICIPATED PERMITS <br />Bowers Field Airport Environmental Assessment Page 5 <br />Advanced Design Needs for NEPA Analysis November 27, 2019 <br />-g <br />°L <br />I <br />c <br />°p <br />CL <br />c <br />t <br />c <br />°° <br />a <br />�L <br />cc� <br />o� <br />s12 <br />Permit <br />oi <br />C <br />cr <br />(Issuing Agency) <br />Submittal Requirements <br />3 <br />I <br />IU <br />Conditional Letter <br />Written description of the project <br />No <br />Not <br />25% <br />No <br />of Map Revision <br />Scoped <br />(FEMA) <br />MT -2 Application form signed by applicant, <br />certifying engineer, and community affected by <br />No <br />Not <br />25% <br />ii <br />No <br />the revision <br />; Scoped <br />I <br />Community acknowledgement form <br />No <br />i <br />i Not 25% <br />I Scoped <br />No <br />Hydrologic analysis (modeling) <br />No Not 60% <br />Yes <br />Scoped <br />Certified topographic work map <br />No Not <br />1 60% <br />Yes <br />Scoped <br />Bowers Field Airport Environmental Assessment Page 5 <br />Advanced Design Needs for NEPA Analysis November 27, 2019 <br />