#Maui Department of Water Supply

The County of Maui Department of Water Supply invites the public to a community open house from 5:30 to 7 p.m. Wednesday, Feb. 25, 2026, to learn about recent amendments to Maui County’s Water Use Conservation rules, which take effect March 1, 2026.

The County of Maui Department of Water Supply is inviting Maui County students to participate in its 14th Annual Water Conservation Poster Contest for kindergarten through grade 6 and its 8th Annual Water Source Protection Video Contest for grades 7 through 12. Entries are due by March 27, 2026, and prizes will be given for top submissions.

Shaw Street in Lahaina will be closed in both directions between Front St. and Waineʻe St. beginning at 8:30 a.m. on Jan. 6, 2026. The Water Department reports the closure is due to service repairs.

Following recent rainfall and ongoing community water conservation, the County of Maui Department of Water Supply is suspending the Stage 1 Central and South Maui water shortage, effective immediately and until further notice.

Trace levels of selenium have been detected for the first time in water samples during routine water testing of the Lahaina Water System, which services Lahaina, Honokōwai and Nāpili, according to the County of Maui Department of Water Supply.

Following recent rainfall that improved surface water flows and replenished reservoirs, the County of Maui Department of Water Supply (DWS) is suspending the Stage 2 Upcountry water shortage and downgrading it to a Stage 1, effective immediately and until further notice.

Council Vice-Chair Yuki Lei Sugimura issued a reminder about tonight’s community meeting focused on Upcountry water source development. The meeting begins at 6 p.m. on Tuesday, Oct. 28 at the Hannibal Tavares Community Center in Pukalani.

The Maui Department of Water Supply on Friday announced a Stage 3 water shortage for consumers in the Upcountry Maui service area, requiring the implementation of mandatory and strict water conservation measures.

As part of their quarterly “Manaʻo on The Mountain” Community Potluck series, Kula-based nonprofit, Mālama Kula, will be hosting Department of Water Supply Chief Engineer James Jensen, for an Oct. 22 discussion on Upcountryʻs water system, and where Kula gets its water from.

There is a water service outage due to mainline break in Hāna, on Hāna Hwy, from Koali Bridge to St. Peters Church, affecting 60 homes and 10 standpipes. The Department of Water Supply reports the outage is from in effect from 7 a.m. to 3 p.m. on Thursday, Sept. 18, 2025.

The Department of Water Supply reports a scheduled water service outage in Kīhei scheduled today, May 7, 2025 from 4:30 to 8:30 p.m. affecting Lipoa Parkway. During this time, Wailea may experience low water pressure.

County of Maui Department of Water Supply is continuing its community meetings on the future of Maui island’s drinking water supply with six in-person events in May. DWS is partnering with national nonprofit US Water Alliance to facilitate the meetings, which will help shape Maui’s water future.

Anticipated completion time has been extended to Monday, April 28, 2025, at 12 p.m.

County of Maui Department of Water Supply is inviting the community to attend an online meeting Thursday, April 24, 2025, from noon to 1 p.m. The meeting will introduce County partner US Water Alliance, a national nonprofit that will hold in-person events next month that focus on Maui island drinking water supply.

Attendees will hear about the ongoing inventory process and inventory map, EPA ruling, risks of lead in drinking water and how DWS is keeping the community safe.

Staff from the Maui Department of Water Supply recently completed an analysis of maximum reliable capacity for the Central System. Applications for additional water service will be limited to 1,200 gallons per day unless exempted by the rules.

Since July 2024, DWS and its Maui-based contractors have inspected approximately 3,000 water service lines in Central and South Maui. An in-person meeting will take place on March 6 in Wailuku.

The County of Maui Department of Water Supply is reminding Central and South Maui visitors and residents to continue to conserve water under the Stage 1 Water Shortage.

The County of Maui Department of Water Supply has published a public inventory map for customers to review the current status of their service lines.

The County of Maui Department of Water Supply invites the community to a project update about its ongoing water pipe inventory to comply with US Environmental Protection Agency lead and copper standards.