Frequently Asked Questions (FAQ) for customers in the Charleston area, including Kiawah Island, TJ Barnwell, Harbor Island, and CUC.
Billing
Starting April 12th, you can pay online via our customer portal.
Learn about different ways to pay your bill on our Payment Options page.
Customer Care
Customer Care representatives are trained to assist you with a range of subjects, including account and billing inquiries, service order requests, or questions about your rates.
Customer Portal
The customer portal is a place where you can perform many activities with your account, including the following:
- Make payments online via Visa or Mastercard credit or debit cards, or via online checking.
- View your statement.
- Request paperless billing.
- Review payment history.
The customer portal website allows you to perform many activities with your account, including the following:
- Make payments online via Visa or Mastercard credit or debit cards, or via online checking.
- View your statement.
- Request paperless billing.
- Review payment history.
Setting up access to the customer portal:
You will first need to create your account through the customer portal at account.mywater.us . You will need your 10 digit account number and your 4 digit account identifier. If you do not know what your 4 digit identifier is, please call us at (843) 768-0641 and an agent will be happy to assist you with that information.
You will first need to create your account through the customer portal at account.mywater.us . You will need your 10 digit account number and your 4 digit account identifier. If you do not know what your 4 digit identifier is, please call us at (843) 768-0641 and an agent will be happy to assist you with that information.
General Information
Backflow is the undesirable reversal of flow of non-potable water or other substances through a cross-connection and into the piping of a public or consumer water system
When someone other than your water provider operates the isolation valve there is potential to cause damage to the curbstop. When this occurs we are forced to turn water off to entire sections of customers in order to make the repair.
No one other than our personnel is permitted to turn your meter off. You are encouraged to install a valve on your supply line so that you have easy access to isolate your service in the event of an emergency or need to make repairs at your home.
Rates and Fees
The base water and sewer fee is used to cover the fixed costs of running the Utility operations. You incur similar minimum charges for cable, electricity and phone service.
Our rates are regulated by the South Carolina Public Service Commission. A 1.5% late fee is charged automatically if your payment is not received on the due date. There is no grace period.
Your sewer fee is based on unique factors with your system.
Harbor Island:
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TJ Barnwell:
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CUC:
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Kiawah Island:
Yes. If you are a residential customer your consumption is charged at a rate of $0.74 per thousand gallons up to 11,000 gallons per month or $8.14. Eleven thousand gallons is used since that is the average domestic consumption for a residential customer.
Commercial and Hotel sewer rates are based on all water consumed primarily because their irrigation usage is metered separately and all water going into these facilities is returned to the sewer for disposal and treatment.
The normal flows are listed below by meter size:
5/x” x ¾”: 20 Gallons per minute
¾” x ¾” meter: 30 Gallons per minute
1” meter: 50 Gallons per minute
1 ½” meter: 100 Gallons per minute
2” meter: 160 Gallons per minute
3” meter: 350 Gallons per minute
The minimum charge is based on available flow capacity through the various size meters. Our smallest meter is a 5/8” x ¾” meter which delivers 20 gallons per minute (gpm).
The fee established by the Public Service Commission (PSC) is based on the following formula for water:
(Maximum recommended meter capacity (gpm) x $36.65 per month) / 20 gallons per minute (gpm)
The sewer formula is:
(Maximum recommended meter capacity (gpm) x $28.00 per month) / 20 gallons per minute (gpm)
An example for a 1″ meter: (50 x $36.65) / 20 = $1,832.50 / 20 = $91.62(water)
Fixed costs are expenses necessary to maintain the operation of the utility. They include, but are not limited to utilities, staffing, taxes, vehicles, professional fees, analytical requirements, insurance, permit fees, and general supplies.
A charge of $25.00 is used to defray cost of initiating service.
Kiawah Island Customers:
You are entitled to have your service disconnected for this purpose but you will be charged a reconnect fee of three (3) times the minimum water and sewer charge to re-instate service as described in the PSC approved Schedule of Rates and Charges.
Harbor Island and TJ Barnwell Customers:
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CUC Customers:
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Water Quality
A Boil Water Advisory is issued to notify users that the water may be contaminated and to boil for precautionary purposes. During the advisory, customers should bring water to a vigorous boil for at least one minute before use. This will kill any harmful organisms that may be in the water.
A Boil Water Notice is issued by the Department of Health and Environmental Control (DHEC) or the owner or operator of a public water system, notifying users of the water system that there is a strong potential for contamination and to boil all water for at least one minute prior to using for drinking or cooking.
Kiawah Island Utility and Johns Island Water Company do not treat the water received from Charleston, therefore the Charleston Water System results are reflective of the water delivered to the residents of Kiawah Island. According to Charleston Water System the average hardness is 56 parts per million (ppm). You may go to their website at www.charlestonwater.com for up to date analytical results.
There are generally two scenarios in which you may see discolored water at your tap.
The color of water is caused by naturally occurring compounds from decaying vegetation and organic matter that enters source water through runoff, falling vegetation, etc. While discoloration is rarely a health concern, it is an aesthetic concern. Color is measured in platinum-cobalt units (PCUs). Charleston Water System’s lab is equipped with state-of-the-art spectrophotometers to obtain exact color level measurements.
A second common reason for discolored water is when the fire department conducts their semi-annual flow test of each hydrant. This will occasionally stir up the water in the line for a short period of time. You can clear your supply by flushing your water until it is clear again.
