Water Supply, Department of
200 S. High St.
Kalana O Maui Bldg, 5th Fl
Wailuku, HI 96793
Link: Department of Water Supply's web page
DWS hours of Operation
Mon-Fri 7:45 a.m. - 4:30 p.m.
Kalana O Maui 5th Floor Customer Service and Payment Hours - 8:00 a.m. to 4:00 p.m.
24-hours Operations Trouble Calls (All Areas)
(808) 270-7633
Broken Mains, Leaks, Water Quality, Low Pressure
Customer Service
(808) 270-7730
(808) 270-7136
Start/Terminate Service, General Inquiries, Water Meter Inquiries, High Bills, Change of Address, Bill Payment and/or Delinquent Bills
Accounting/Fiscal Services Division
(808) 270-7781
Board of Water Supply
(808) 270-7304
Link: Link to Board of Water Supply web page
Engineering Division
200 S. High St
Kalana O Maui Bldg, 5th Fl
Wailuku, HI 96793
(808) 270-7835
Field Operations-Hana
(808) 248-8455
(808) 248-7333
Field Operations-Kahului
(808) 270-7633
(808) 270-7544
Monday-Friday 7 a.m. - 3:30 p.m.
Field Operations-Lahaina
(808) 661-4141
(808) 661-2019
Field Operations-Molokai
(808) 553-3531
Press Release Information
(808) 270-8046
Inspectors
(808) 270-7340
Personnel
(808) 270-7305
Water Resources & Planning
One Main Plaza
2200 Main Street, Suite 102
Wailuku, HI 96793
(808) 463-3110
(808) 463-3112
Purchasing
(808) 270-7301
Plant Operations-Kahului Office
(808) 270-7551
Backflow:(808) 244-8545
Plant Maintenance: (808) 270-7552
Water Quality Lab: (808) 270-7550
Water Treatment Plant Operations - Kahului
(808) 270-7380
(808) 270-7544
Hours 7:00 a.m. - 3:30 p.m.
Water Bill Payments
200 S. High St
Kalana O Maui Bldg, 5th Fl
Wailuku, HI 96793
(808) 270-7730
Link: Location