The EPA is also looking into alleged pesticide violations at Wonder Farm in Waianae. Meanwhile, a probe of Syngenta continues.
Kobayashi, Manahan, Menor and Kaneshiro won re-election by wide margins.
But most of the other charter amendments were passing handily, including more police oversight and money for the Honolulu Zoo.
Two Hawaii development companies are trying to stop the lawyers for one former client from representing other plaintiffs.
Council members Ann Kobayashi, Ron Menor and Joey Manahan have far outraised their general election challengers.
The Honolulu City Council approves millions in extra funding for nonprofits, but the mayor frequently holds back the money.
Proposed Honolulu charter amendments would create two more departments. Supporters cite efficiency, opponents lament bureaucracy.