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Department of Water Supply
The Maui Department of Water Supply serves five main sections within the County:
The system with the most customers is the Central system, which includes Wailuku, Paia, Kahului, Puunene, and Kihei.
The next largest system is the Upcountry water system, which is actually the largest geographically. This includes Kula, Pukalani, Makawao, and Haiku.
Lahaina is third, then Molokai, and then Hana. Water on the island of Lanai is provided by a private company.
Maui Water Treatment Facilities
Monthly Water Production
Water Quality Report
Where Does Your Water Come From?