Annual Water Quality Report for County of Maui Water Systems
Each year, the Maui Department of Water Supply provides its customers with an Annual Water Quality Report to let them know that our water meets all established federal and state drinking water standards. We encourage you to review this report as it provides details about the source and quality of the drinking water delivered to your community in 2021. The Maui Department of Water Supply has been treating and testing the quality of its water since the Department was organized in 1949. To ensure the safety of your water, hundreds of tests are run annually to determine the presence of potential contaminants such as bacteria, pesticides and herbicides, asbestos, lead, copper, petroleum products, and by-products of industrial and water treatment processes.

Maui County Water Quality Report

To find the 2021 Water Quality Report for your water : Click on the name of the water system on the map below.

Wailuku System - Central/South Maui			Lahaina System			Ualapue System			Upper Kula System
	Kahului			Honokowai			Kamalo			Kanaio
	Kihei			Kahana			Ualapue			Keokea
	Maalaea			Kelawea			Wailua			Olinda Rd-above 1525 Olinda Rd to 2877 Olinda Rd
	Makena			Lahaina		Kaunakakai System				Piiholo-from 1671 Piiholo Rd to 2755 Piiholo Rd
	Paia			Mahinahina			Kamililoa			Ulupalakua
	Puunene			Napili			Kaunakakai			Waiakoa
	Spreckelsville			Puamana			Kawela			Waiohuli
	Waiehu			Wahikuli		Kalae System
	Waihee		Hana System				Kalae
	Waikapu			Hamoa		Lower Kula System
	Wailea			Hana			Kula Kai
	Wailuku			Wakiu			Kulalani Subdivision
Makawao System			Honokohau System				Olinda Rd- Malu Pl to 1525 Olinda Rd
	Haiku			Honokohau			Omaopio
	Hailiimaile		Keanae System				Piiholo -from 981 Piiholo Rd to 1630 Piiholo Rd
	Kokomo			Keanae			Pulehu
	Makawao		Nahiku System
	Pukalani			Nahiku