S . ▁dr ought ▁of ▁ 2 0 0 7 , ▁the ▁air port ▁( the ▁e ighth - larg est ▁water ▁user ▁in ▁the ▁state ) ▁made ▁changes ▁to ▁reduce ▁water ▁usage . ▁This ▁included ▁adjust ing ▁to ile ts ▁( 7 2 5 ▁comm odes ▁and ▁ 3 3 8 ▁ur inals ) ▁and ▁ 6 0 1 ▁s inks . ▁( The ▁two ▁terminal s ▁alone ▁use ▁ 9 1 7 , 0 0 0 ▁gall ons ▁or ▁about ▁ 3 . 5 ▁million ▁lit ers ▁a ▁day .) ▁It ▁also ▁stopped ▁using ▁fire tr uck s ▁to ▁sp ray ▁water ▁over ▁aircraft ▁when ▁the ▁pilot ▁made ▁a ▁last ▁landing ▁before ▁ret irement ▁( a ▁water ▁sal ute ). ▁The ▁city ▁of ▁Ma con ▁offered ▁to ▁sell ▁water ▁to ▁the ▁air port , ▁through ▁a ▁proposed ▁pipeline . ▁ ▁The ▁air port ▁today ▁emp lo ys ▁about ▁ 5 5 , 3 0 0 ▁air line , ▁ground ▁transport ation , ▁con cess ion aire , ▁security , ▁federal ▁government , ▁City ▁of ▁Atlanta , ▁and ▁air port ▁ten ant ▁employees ▁and ▁is ▁the ▁largest ▁employ ment ▁center ▁in ▁Georgia . ▁With ▁a ▁pay roll ▁of ▁$ 2 . 4 ▁billion , ▁the ▁air port ▁has ▁a ▁direct ▁and ▁indirect ▁economic ▁impact ▁of ▁$ 3 . 2 ▁billion ▁on ▁the ▁local ▁and ▁regional ▁economy ▁and ▁an ▁annual , ▁regional ▁economic ▁impact ▁of ▁more ▁than ▁$ 1 9 . 8 ▁billion . ▁Since ▁the ▁opening ▁of ▁Con course F ▁in ▁May