<prompt> Bhala okuqhubekayo kwalesi sigaba - Ngo-2007 umbiko we-United States Environmental Protection Agency mayelana nokugeleza kwaphakamisa ubukhulu obulinganiselwayo bendawo engcolisiwe kanye nomthamo wokugeleza okulinganiselwa ku-, izikhathi ezintathu ezinkulu kunokugeleza kwe-Exxon Valdez  <response>: . futhi. Lo mbiko wabuye wagxeka imizamo yokuvuselela kanye nokwehla kwamuva kwenqubo yokuhlanza. 