COST-PLUS-AWARD-FEE (CPAF) INDEFINITE-DELIVERY, INDEFINITE-QUANTITY (IDIQ) SINGLE AWARD CONTRACT FOR ARCHITECT AND ENGINEERING (A-E) ENVIRONMENTAL SUPPORT SERVICES FOR COMPREHENSIVE LONG-TERM ENVIRONMENTAL ACTION NAVY (CLEAN) IN NAVFAC ATLANTIC?S AREA OF RESPONSIBILITY (AOR), PRIMARILY IN THE NAVFAC MID-ATLANTIC NORTHEAST AOR, NAVFAC SOUTHEAST AOR, AND BASE REALIGNMENT AND CLOSURE (BRAC) EAST AOR.