FREQUENTLY ASKED QUESTIONS

Customer Information Center > FAQ


Have questions about your water service? You may find what you are looking for with these frequently asked questions.


My Account Portal

What are the features on the My Account portal?

The My Account portal provides customers with control over their Board of Water Supply (BWS) account.

  • Update your account profile (new feature)
  • Start/stop service (new feature).
  • Go “green” with paperless billing.
  • Communicate with BWS via secure messaging to report billing issues and concerns (new feature).

Additional features are available for single-family residential accounts only:

  • Online bill payment using Visa, MasterCard, and Discover card with no card processing fee.
  • Allow for guest payments on an account (new feature).

I am an existing customer who wants to update my customer account information. What do I need to do?

Existing customers who are interested in updating their account service holder name or advising the BWS of a new contact phone number, mailing address, change of employment, or automatic bill payment termination may contact our Customer Service call center at (808) 748-5000 or they may register to use the BWS account portal. Once registered, customers will be able to submit changes to their account information online. To register, go to https://myaccount.boardofwatersupply.com.

How do I register to use the My Account portal?

To register, you will need your account number. Find your account number on your bill or call the BWS at 748-5030 to request for it, then go to www.boardofwatersupply.com and click on “My Account Portal” to be directed to the login page.

Can I arrange for automatic online bill payment via my credit card?

We do not offer this service currently. It may become available in a future upgrade.

How secure is my account information and payment on the My Account portal?

The BWS has safeguards in place to ensure safe transactions and protection of customers’ personal information with security questions and a CAPTCHA challenge.

If I experience problems with registering for the My Account portal, who can I call for help?

For questions or assistance with registering, please contact the BWS Customer Care staff during office hours 7:45 AM to 4:30 PM, Mondays through Fridays:

Automatic Bill Payment

What is Automatic Bill Payment (ABP)?

Through the Automatic Bill Payment (ABP) service, your participating bank, savings and loan, or credit union can pay your water (and sewer) bill by automatically deducting the amount due from your financial account.

What happens when I sign up for an Automatic Bill Payment?

Your financial institution automatically deducts the amount due for your water (and sewer) bill from your checking or savings account.

How can I sign up for Automatic Bill Payment?

Mail a completed Automatic Bill Payment (ABP) Authorization Form to:

Board of Water Supply
Customer Care Division - Collection and Credit
630 South Beretania Street
Honolulu, HI 96843

When will the Financial Institution deduct it from my account?

Deductions will be made ten (10) days after your water bill is mailed, giving you enough time to review the bill and, if necessary, call the Customer Care Division at (808) 748-5020.

How much does this ABP service cost?

It's free.

May I stop payment at any time?

You may stop any automatic payment by contacting your financial institution three (3) or more business days before the payment is scheduled to be made. The stop payment may be subject to a charge by your financial institution.

What happens if there are insufficient funds in my account?

The returned payment will be subject to established charges for a returned check. If two (2) payments are returned during a 12-month period, your Automatic Bill Payment will be terminated.

Who may I call if I have any questions about Automatic Bill Payment?

Call the Customer Care Division of the Board of Water Supply at (808) 748-5020. Or contact us via e-mail at customerservice@hbws.org.

Credit Card Acceptance Policy

When will the change in credit card acceptance policy begin?

Effective January 1, 2017, the BWS will accept credit card payments from residential single-family accounts only.

Why is the BWS only accepting credit card payments from single-family residential customers?

The BWS has been absorbing the fees the bank charges for the processing of credit card transactions. Unfortunately, due to the renewed terms of the BWS’s contract with the bank, the BWS can no longer afford to include non-residential customers (customers who are not billed at the single-family residential water rate) in this payment option.

Which customer classes are affected by this change?

Customers who are not billed at the single-family residential water rate are affected by this change. This includes multi-family residential, agricultural, non-residential, and non-potable water customer accounts.

Does this change affect both the water bill and sewer bill?

Yes as payments for both are handled by the Board of Water Supply. The credit card acceptance policy applies to all bills for accounts that do not pay the single-family residential rate either for water or sewers.

What payment options remain available for customers affected by the change in the payment acceptance policy?

Customers affected by this change may still use alternative methods of payment such as cash, check, or automatic deductions from their checking or savings account.

Which credit cards are accepted to make a payment? What about debit cards?

BWS only accepts Visa or MasterCard credit card payments for single-family residential accounts.

Who may I contact if I have additional questions?

For more information about the change or any questions regarding your account, please call the BWS Customer Care Division at (808) 748-5030.

Fraud Protection

What can I do to protect myself against fraud?

The Board of Water Supply regularly monitors for potential scams targeting water utility customers. Visit our Scam Prevention information page for more details.

General Water Service

I am moving into a single family residence. How do I get a water service account set up?

You may submit a start service request via online form. Or, you may call the Customer Service team at (808) 748-5030.

  • Provide the following information:
    • Your name
    • Your new address for water service
    • The date you want to start water service (also known as the "effective date")
    • The billing address (if different from your new place of residence)
    • Contact information (home/business/cell phone numbers)
    • Employment information
    • Letter of Credit from your last utility (if available)

Also indicate whether you are the dwelling owner or renter. If you are a renter, we'll need your landlord or property manager's information.

Is there a deposit or hook up fee?

A deposit fee may be charged.

How often do I get billed?

Beginning January 2013, all residential and non-residential customers will be billed monthly.

Why did I receive an estimated bill?

We try to have your meter read each billing period. However, if for some reason we are unable to do so, we will estimate your consumption based on your recent average water usage.

What if I need to set up new water service for a vacant lot?

Please call the Customer Service, Service Engineering team at (808) 748-5460.

What if I am adding a new home to my property?

Please call the Customer Service, Service Engineering team at (808) 748-5460.

  • Review the Checklist for Residential Projects.
  • Provide the following information:
    • Building permit application
    • Building file and job site plans
  • If requested:
    • Water allocation letter
    • Conditions for Water Service Above the Service Limit form

What if I am adding or renovating my existing home?

Please call the Customer Service, Service Engineering team at (808) 748-5460.

What if I have more than one dwelling on my property and would like a separate meter?

Please call the Customer Service, Service Engineering team at (808) 748-5460.

What if I am building new non-residential development on a vacant lot?

Please call the Customer Service, Service Engineering team at (808) 748-5460.

What if I am adding or renovating an existing non-residential development?

Please call the Customer Service, Service Engineering team at (808) 748-5460.

What do I do if I am building a new multi-unit residential development on a vacant lot?

Please call the Customer Service, Project and Plans Review team at (808) 748-5440.

What if my development requires the installation of a 3-inch or larger meter?

Please call the Customer Service, Project and Plans Review team at (808) 748-5440.

  • Construction plans for the installation of the 3-inch or larger meter must be submitted for BWS review and approval.

How to I request water temporarily for construction purposes?

Please call the Customer Service, Service Engineering team at (808) 748-5460.

What if I need water for agricultural purposes?

Please call the Customer Service, Service Engineering team at (808) 748-5460.

  • Determine to which water district you belong.
  • Complete and submit irrigation water management plan with the following information:
    • Type of crop production
    • Crop irrigation requirements
    • Type of irrigation system

Upon establishing the agricultural water service, you will receive an agricultural packet if you wish to apply for agricultural water rate.

How do I apply for agricultural water rates?

Please call the Customer Service team at (808) 748-5030. You will need to submit the agricultural application along with a copy of your general excise license. (See Sample Request for Water Service for Agricultural Purposes.) You must be farming on a commercial basis. Upon receipt of the application, we will then field investigation. We will make a decision on your application and notify you when we complete the investigation.

Can I get an adjustment if I will be or am refilling my swimming pool?

There is no adjustment on the water used to refill/fill the swimming pool, however, you can make contact with Department of Environmental Service at (808) 768-3330 for any programs they may have regarding refilling/filling the swimming pool.

Can I get an adjustment if I recently put in a new lawn?

There is no adjustment on the water usage, it is billed as read, however, you can make contact with Department of Environmental Service at (808) 768-3330 regarding a possible new lawn adjustment.

Paying My Bill

I have a question regarding my wastewater bill.

Please call the Department of Environmental Service at (808) 768-3330. Please be advised of sewer service charge increases.

I need help reading my water bill.

Your combined water-and-sewer bill contains charges from two separate City agencies - the Board of Water Supply (BWS) and the Department of Environmental Services (ENV). For more assistance with understanding your water bill, please review this handy guide with locations of key information and details that appear on the bill.

  • English
    How to Read Your Bill
  • Chinese 
    自来水和排污新账单
  • Japanese 
    上下水道料金の新しい請求書
  • Korean 
    새 상수도 및 하수도 고지서
  • Vietnamese 
    Hóa Đơn Cấp Thoát Nước Mới
  • Ilokano 
    Ti Baro a Kuentaan ti Danum ken Tubo
  • Tagalog 
    Ang Bagong Singil (Bill) sa Tubig at Alkantarilya (Sewer)

What are my bill payment options?

To what address do I mail my bill payment?

Please mail your bill payment to:

Board of Water Supply
City and County of Honolulu
P.O. Box 135037
Honolulu, HI 96801-5037

When can I expect my bill?

Beginning January 2013, all residential and non-residential customers will be billed monthly.

What if I don't pay my bill on time?

  • If payment is not received and posted by the Payment Must Reach Us By on your bill, then the amount is past due and a Final Notice will be issued.
  • If you received a Final Notice, the full past due amount must be received and posted by the deadline date or water may be discontinued.
  • If your water is turned off for nonpayment, you will be required to pay the full amount of your bill plus a turn-on charge before water can be restored.

I received a high bill. How can I check for leaks?

To check your property for leaks, please refer to the leak detection section of the BWS website.

I am moving out and would like to make closing arrangements.

Closing date must be current or future dates. The account service holder must complete and submit a stop service form or call us at (808) 748-5030. We will issue you a closing receipt number when you call, which serves as proof that services will be/have been terminated.

All water and sewer charges will continue to be your responsibility until you notify us to terminate service in your name.

Project Review

Is there water for a property that I want to build on/develop/subdivide?

Submit a written request indicating the Tax Map Key (TMK), proposed development, and the name of a contact person. We try to reply within two weeks.

What is the water pressure at my house?

Please send us a written request with your address or the location of the nearest fire hydrant. We will send flow and pressure data within two weeks.

What is the water allocation for my lot? I want to build more homes for my family to live in.

If you currently have water service, we will credit your lot with the existing fixture units or water meter. If your future plans require additional fixture units or a larger meter, submit a written request indicating the Tax Map Key (TMK), proposed development and the name of a contact person. We try to reply within two weeks.

Water Meters

What do I need to know about the water meter?

Board of Water Supply uses five basic types of residential water meters. They are usually located in the public right of way, in ground along the street-side of your property line. That may be in the grass or in the sidewalk. To learn more about the water meter, please review information found on our leak detection page.

Water Rates & Charges

Why does the BWS make changes to its rates?

As part of our regular operating procedure, the BWS conducts a rate study every 5 years to ensure that we have enough money to cover costs of our operations.

  • A rate study is done for each 5-year schedule. It takes into account all of our capital improvement projects, operating and maintenance costs during this period. It analyzes what each customer class pays and then looks at what we will need for the next 5 years to meet these costs and ensure the water system keeps operating.
  • Different rate scenarios are then vetted to balance affordability vs dependable and safe service. Ultimately a scenario is chosen and is vetted during public outreach and with our board.
  • The rates enable the BWS to continue to provide customers with the current level of service customers expect.
  • The BWS is financially self-supporting. It does not receive monies from City property taxes or fees, or from State taxes, to manage and operate Oʻahu’s water system. Monies collected from water usage pay for the BWS’s operations and capital projects.

What is the Board of Water Supply doing to keep down its costs?

The BWS conducts quarterly reviews of its operating budget. Also, it is always exploring opportunities to increase efficiency and reduce costs in every aspect of our operations. 

The BWS is committed to cost-efficient operations.  For the past 2 years, the BWS kept its budget flat as it:

Do water rate increases go to fund sewer projects?

No, sewer services are provided by a separate City agency, the Department of Environmental Services (ENV). The BWS is responsible for your water services only. Revenue generated by the water rates are dedicated to funding capital and operation costs for the water system only. Please contact ENV with questions by calling (808) 768-3330.

Will my sewer fees increase, too?

Are there opportunities for residential customers to further reduce their water usage and mitigate the rate increase impacts?

The water rate structure is designed to promote conservation. The less water you use, the less you're billed.

  • The rate increases will most affect the highest water users, those who use 30,000 gallons of water or more a month.
  • BWS offers conservation tips and resources for residential customers at www.boardofwatersupply.com/conservation/tips.
  • We have rebate programs to help our customers reduce their water use by purchasing water efficient toilets, washers and weather-based irrigation controllers. For more information, please go to www.boardofwatersupply.com/watersensible, for details.
  • Additionally, we have identified our top water users and are calling and talking to these residents and businesses.

Kūpuna (fixed income) and low-income customers should not be subjected to the rate increase. Will these customers have the chance to receive a subsidy or get help in paying their water bills?

  • For our Kūpuna - we are starting a pilot project to work with service providers to reach out to seniors living independently and on a fixed income who may be unaware they may have leaks inside or outside their homes. The project includes the following:
    • Conducting basic water audits (observing and measuring water from fixtures in the home),
    • Installing water-efficient faucet aerators and low-flow showerheads to help lower water usage.
    • We plan to start this program on Oahu’s west side.
    • BWS offers rebates for water conservation fixtures and appliances. More at www.boardofwatersupply.com/rebates.
  • The BWS has an essential needs tier where all BWS customers pay below-cost-rate for their first 2,000 gallons use per month.
    • Low water users pay lower rates, and higher water users pay higher rates. This is done to encourage water conservation.
    • The Essential Needs tier will increase 2.5% per year starting February 1, 2024.
  • Customers who need help paying their water bill may qualify for help from the Low-Income  Household Water Assistance Program (LIHWAP). 
    • Applications must be approved prior to March 31, 2024, and is subject to availability of funds.
    • Visit www.waterhelp.info or contact the Honolulu Community Action Program.

The rate tiers have a large impact on multi-generational households with a lot of people, since their water usage extends into the highest rate tier. Is there anything that can be done for these customers?

With multi-generational households, we encourage them to take advantage of tools that help them use less water and apply for our Water Sensible rebates.

I live in a townhouse – how is that bill calculated?

Townhouses are charged the multi-family residential rate.

  • They usually have one master meter that serves the entire property.
  • The BWS takes the total usage in that one meter, divides it by the number of dwelling units in the property, and then applies the tiered structure to calculate the bill.

Why don’t hotels pay a higher rate?  It seems they get a break and long-term residents pay more.

Hotels, and all other non-residential customers, pay more than their cost of service (117% over the cost of service) and subsidize single-family and agricultural customers. This is a policy decision made by our board to lessen the impact to our largest customer class (single-family) and support state and city goals of food security.

  • Using our tiered water rates, bills are actually lower for over 2/3 of our single-family customers, all but our higher water users.
  • In fact, it is businesses like hotels that subsidize rates for our single-family, agricultural, recycled water, and non-potable customers. Single-family customers receive the largest subsidy of any of our customer classes, about $5.5 million per year.

Updated: 05/22/2025

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