Give EHP a complete, clear scope of work with maps, photos and site plans; get permits before construction; share any permits you already hold, which can speed the review; keep and attach all agency correspondence; and follow permit conditions and best management practices, then document that you did.
Maps, sketches, photos and site plans of pre-disaster conditions and the work; existing permits and authorizations; copies of all correspondence with federal and state agencies, attached to the grant application; and records showing permit conditions and best management practices were met.
Get permits before you build. Starting construction without required permits or authorizations puts the funding for that work at risk, and after-the-fact fixes are slow and uncertain.