Water Use Reporting

Water use information is essential to the understanding of the behavior and response of our water resources to stresses from water withdrawals. Such information also ensures that demand is managed effectively within the sustainable limits of our water supply. Water use information can also be used to evaluate the effectiveness of alternative water management policies, regulations, and conservation activities; assess the impacts of population growth and corresponding increases in water demands; develop trends in water use; and make projections of future demands.

In an effort to implement management policies of the Commission identified through the State Water Code, its Rules, and the Water Resource Protection Plan, well and stream diversion owners are required to document and report their total monthly water use so that our public trust resources can be better understood and managed for future generations.

Reported water use data, including pumpage, water level, and chloride, or diversion amounts, is entered into our Water Use Reporting database. Water Use Report forms are in the Applications & Forms page. 

On January 22, 2014, the Commission required all wells in the State of Hawaii to report monthly ground water use including quantity pumped, chloride (and/or conductivity) concentrations, temperature, and (pump off) water-level data. A Water Use Reporting brochure and video also provide additional help and information on water use reporting methods.


View Online Water Use Reporting Instructions


Reporters should avoid submitting online reports between the hours of 3-4am

If there are any questions or issues regarding the Online Water Use Reporting website, please contact Bob Chenet via email at [email protected] or phone at (808) 587-0243.


Online Water Use Reporting Website Maintenance Notices:


10/04/2019 – 10/06/2019

Server maintenance. Reporting website will not be available from 10/04/2019 3:15 pm – 10/06/2019 5:00 pm

9/13/2019 – 9/15/2019

Server maintenance. Reporting website will not be available from 9/13/2019 4:00 pm – 9/15/2019 5:00 pm


Site down due to unplanned maintenance issues


Our On-line System now helps to identify possible errors entered for Pumped Quantities. Once one of these safeguards has been triggered, an email will be sent to our office and the ground water use reporter.

The three error checking safeguards are:

  1. If the entered Pump Quantity is less than ten times the gallons per minute rate of the previous reported Pump Quantity,
  2. If the entered Pump Quantity is greater than ten times the gallons per minute rate of the previous reported Pump Quantity, and
  3. If the Pump Quantity entered exceeds a quantity possible for the well based on the pump’s recorded capacity.

If the Quantity you reported is correct, but you receive an email for the first two safeguards then no action is necessary for you. However, if you receive an email concerning the last safeguard, please contact Bob Chenet since either there was a mistake in the quantity reported or we have the wrong pump information.

12/17/2015 – 12/18/2015

Server maintenance. Reporting website will not be available until 12/18/2015 4:00 PM


Server maintenance. Reporting website will not be available 4:00 PM – 4:30 PM.


Reporting website not available approximately 12:00 PM – 4:00 PM.


Reporting website not available until 10:30 AM.

4/4/2015 – 4/6/2015

Reporting website not available from 4/4/2015 through 10:00AM on 4/6/2015.