If the landfill ... A poly liner material will then be installed followed by perforated piping. Next, the piping will be covered with rock and finally, the entire bottom of the cell will be ...

The city also notes that the Waimanalo Gulch Sanitary Landfill has not leaked through its liner, and that the Wahiawa ... and then get drained out of the bottom, come out as a contaminated liquid ...