• To monitor the State’s public water systems and groundwater for contaminants.
  • Rule, Surface Water Treatment Rule, Phase I Volatile Organic Chemical Rule, Phase II Synthetic Organic/Inorganic Chemical Rule, Lead and Copper Rule, Phase V Synthetic Organic/Inorganic Chemical Rule, and future rules, changes and additions as they occur.
  • Coordinate statewide sampling between water systems, drinking water neighbor island and Oahu staff, and State Laboratories Division to assure samples meet prescribed holding times, and analyses can be conducted in an efficient manner.
  • Receive, evaluate, record, store and transmit data for all analyses to assure proper Branch response to all analytical results.
  • Monitor and sample drinking water of water purveyors who are on compliance schedules.
  • Maintain equipment in operating condition.
  • Monitor groundwater sources to determine status of statewide groundwater contamination.


Melvin Tokuda Section Supervisor
David Kawahara Environmental Health Specialist, oversees Oahu, Kauai site monitoring
Ann Kam Environmental Health Specialist, oversees Maui County site monitoring
Scott Murakawa Environmental Health Specialist, oversees Hawaii County site monitoring
Kelsey Yap Environmental Health Specialist, Groundwater Protection

Contact Us

Phone: (808) 586-4258
Fax: (808) 586-4351
E-Mail: [email protected]

  • Oahu
    Safe Drinking Water Branch
    Environmental Management Division
    Hawaii State Department of Health
    2385 Waimano Home Road, Suite 110
    Uluakupu Building 4
    Pearl City, Hawaii 96782-1400
  • East Hawaii
    Safe Drinking Water Branch – Hilo
    Hawaii District Health Office – Hilo
    1582 Kamehameha Avenue
    Hilo, Hawaii 96720
    Phone: (808) 933-0401
    Fax: (808) 933-0400

Last Update:  11 April 2023