2010 Consent Decree
The City and County of Honolulu entered into a Consent Decree Dec. 17, 2010, with the United States Environmental Protection Agency (EPA), Hawai‘i Department of Health (DOH), and Non-Governmental Agencies.
On Dec. 30, 2010, the city petitioned to amend the Consent Decree, which was approved March 27, 2012. The amendment replaced the Kaneohe-Kailua Force Main and two million gallon storage tanks with the Kaneohe-Kailua Sewer Conveyance Tunnel. The amendment would save approximately $30 million over the next 30 years and $500,000 each year thereafter.
The consent decree consists of three parts: Phase 1 – Collection System (completed in 2020); Phase 2 – upgrade the Honouliuli WWTP to secondary treatment (completed in 2024); and Phase 3 – upgrade the Sand Island WWTP to secondary treatment by 2035.