Department of Environmental Services
- Sewer Rates Information Page
- Service Alert: Green Recycling Organic Waste (G.R.O.W.): Starting April 1, 2026, the City will start accepting food waste in the green cart for selected areas.
- Water Savings-Rebate Information
Department of Environmental Services
Ka ʻOihana Lawelawe Kaiāpuni
Learning Center
Try out these games to learn about our wastewater system! This page will open in a new window, so you may need to hold down the CTRL key when you click if your browser blocks pop-up windows.
Podcast
Welcome to the Department of Environmental Services “ENV Matter” podcast homepage where we’ll provide insightful short podcasts packed with knowledge engaging to the public. Join Markus Owens, ENV’s Public Information Officer, as he interviews guests from refuse, recycling, wastewater, H-POWER, the landfill, and those instrumental in protecting the environment and the everyday health of the public.
Playlist
19:22
16:00
22:03
Media Library
Anatomy of Wastewater
A 24-page illustrated children’s book comparing how the body’s digestive tract is very similar to the City’s wastewater system.
Wastewater 101
A 40-page primer to Honolulu’s 100-plus years of sustainability and wastewater treatment and infrastructure.