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Honolulu’s Honouliuli Wastewater Treatment Plant to Undergo $517 Million Sustainable Upgrade

Honolulu is embarking on a groundbreaking $517 million construction project at the Honouliuli Wastewater Treatment Plant, aiming to upgrade the facility and enhance its sustainability. The project, spanning six years, will involve the installation and testing of electrical, structural, and mechanical systems in three phases. Additionally, there will be improvements in grading, infrastructure development, underground piping, and the decommissioning of existing facilities to modernize the plant’s operations.

Mayor Rick Blangiardi expressed the city’s commitment to improving infrastructure, embracing sustainability, and ensuring a cleaner, healthier future for Honolulu through this transformative project. The upgrades will focus on enhancing protection against inorganic debris, improving primary treatment and solids processing systems for increased efficiency, and generating valuable biogas. This biogas will be utilized to produce heat and electricity within the plant, reducing demand on Oahu’s energy grid and aligning with the city’s renewable energy goals.

The Honouliuli Wastewater Treatment Plant, operational since the 1970s, plays a crucial role in the community’s infrastructure. The project’s emphasis on sustainability and resource recovery highlights the city’s dedication to reducing environmental impact and operating costs. Awarded to Hensel Phelps Construction Company, this initiative signifies Honolulu’s proactive approach towards a more sustainable and environmentally conscious future.

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