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 2nd Floor Payment Hours - 8:00 a.m to 3:45 p.m.
Kalana O Maui 5th Floor Customer Service and Payment Hours - 8:00 a.m. to 4:00 p.m.



Staff
Name Title Email Phone
Taylor, Dave Director (808) 270-7816
Baisa, Gladys C. Deputy Director (808) 270-7834

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, 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



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 or (808) 572-0842


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