(1) For those proposals for which the County is lead agency, the responsible official shall be the Director of Community Development or his designee.

(2) For all proposals for which the County is the lead agency, the responsible official shall make the threshold determination, supervise scoping and preparation of any required EIS, and perform any other functions assigned to the “lead agency” or “responsible official” by those sections of the SEPA rules that are adopted by reference in this chapter.