Just weeks after Chiquita Canyon Landfill evacuated in response to the Hughes Fire in January, residents learned last week the facility is looking into an on-site treatment facility for its ongoing leachate problems.   The discussion of the potential plans came up during the Feb. 19 Castaic Area Town Council meeting during the group’s monthly Chiquita Canyon Landfill update and questions from residents.  A resident asked why the facility was seeking a conditional authorization request from the county’s Fire Department and the state’s Department of Toxic Substances Control.  Town Council President Bob Lewis said he had looked into the question and learned Chiquita Canyon Landfill is looking to mitigate its risks with leachate transportation, Lewis told the group during the virtual meeting.