A breath of fresh air┬áUpgrading HawaiiÔÇÖs largest wastewater treatment plant is no small chore, which is why Hawaiian Dredging Construction Company has been called in for its expertise, Gary Toushek learns. The Sand Island Wastewater Treatment Plant, owned and operated by the City of Honolulu, is the largest treatment plant in Hawaii and handles the discharge of industrial and residential wastewater from the city of Honolulu as well as the resort area of Waikiki.

