Laie Water Company
Hawaii Reserves, Inc.
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General Information

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Laie Water Company's main features and services include:

  • A delivery system for a pristine source of pure water from a basal aquifer deep beneath the ground. Positive hydraulic pressure plus a caprock prevent surface water from mixing with water from the basal aquifer.
  • Two pump stations, each with two pumps, currently draw approximately 1.2 million gallons/day from the aquifer for community use.
  • Water from the pumps goes to a two million gallon tank on the mountain mauka of the old Laie quarry. This tank acts as a storage reservoir and also provides gravity-based water pressure throughout the system.
  • The water flows from the tank through approximately 70,000 feet of transmission mains and distribution lines that serve over 700 customers in Laie.
  • LWC chlorinates the water to sanitize the delivery system; and LWC, City and County of Honolulu, and State of Hawaii officials perform over 1,000 tests per year to insure the quality of Laie's water and the safety of the people who drink it.
  • The State Department of Health Safe Drinking Water Branch regularly monitors the quality of LWC drinking water. In addition, LWC publishes and distributes an annual Water Quality Report. Click here to download the report.
  • The delivery system includes approximately 120 fire hydrants throughout the community.
  • LWC crews normally work Monday through Friday, from 7 am to 3:30 pm. However, they are on-call 24 hours per day, seven days a week in the event of an emergency.
  • Customers experiencing water or sewer main line emergencies may call 293-7017 during normal business hours (M-F, 9a-5p, excluding holidays) for assistance, or 945-1058 after hours.
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