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Water Quality Report - 2022 Publication
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.

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