Payment channels

Pay California Water Service Company - Hermosa-Redondo System

Use the provider’s verified online, telephone, mail, or counter instructions. Check the final confirmation screen for the amount, processing date, and any transaction fee before submitting.

Primary online route

Use the official payment portal

The direct portal is the fastest route when it is available. The provider identifies its payment gateway as Cal Water customer portal (vendor not publicly identified). Never enter account credentials into a lookalike site reached through an unsolicited message.

Open payment portal ↗

Telephone payment

Phone IVR

1-888-598-9824

Have your account number and payment instrument ready. Follow the provider’s recorded prompts and retain the confirmation number.

Alternative channels

Mail, text, and in-person payment instructions

Pay by text

Cal Water does not publish a general keyword-based text-to-pay enrollment path for this system. Eligible residential customers with past-due balances of at least $50 may be offered PromisePay payment-plan enrollment and text reminders through calwater.promise-pay.com; customers should use the invitation or account-specific enrollment link, verify the premise and balance, select an approved installment arrangement, and authorize the requested payment method. Standard emergency and billing alerts require current mobile-contact information in the customer account rather than a universal SMS keyword.

Mail-in address

California Water Service, P.O. Box 7229, San Francisco, CA 94120-7229. Customers should include the payment stub or account number and should not mail cash; allow mailing time for the payment to post before the due date.

Counters, drop boxes, and office hours

The Rancho Dominguez district office at 2632 W. 237th Street, Torrance, CA 90505, telephone 310-257-1400, is the local customer-service location. Cal Water's district pages state that customers should not expect routine in-person bill-counter service at district offices; use the office drop box where available, online or telephone payment, mail, Walmart Bill Pay, or a participating Western Union location. Walmart Bill Pay and Western Union operate on the individual retailer's posted hours, accept only the payment types supported at that retailer, and may require the Cal Water account number and current bill. Confirm drop-box availability and holiday hours with the district before traveling.

Accepted digital instruments

What you can use online

Cal Water accepts Visa, Mastercard, and Discover credit or debit cards and payments drawn from a bank account/e-check through its account portal or automated phone system. Cash, check, and money order are available through specified non-digital channels such as Walmart Bill Pay, Western Union, mail, or an authorized drop box. Apple Pay and Google Pay were not confirmed as supported payment instruments in the reviewed Cal Water materials.

2026 transaction pricing

Convenience fees

Cal Water's reviewed 2026 payment-options materials do not state a routine utility-imposed convenience fee for the myaccount.calwater.com portal or automated phone payments, and the company does not advertise a percentage surcharge for ordinary card or e-check payments. Third-party retail channels may impose their own service fees; postage and any retailer fee are separate from the water charge. Confirm the final amount on the payment confirmation screen before submitting.

Fees can vary by payment type, channel, account class, and processor terms. The checkout screen is the final fee disclosure.

Payment guidance

Choose the payment channel that fits your deadline

The safest payment path is the one published by California Water Service Company - Hermosa-Redondo System and matched to the account information on your bill. Online portals are convenient, but telephone, mail, counter, and drop-box options may follow different posting schedules and may use different fees.

For a routine payment, save the final confirmation page or IVR number and check when the transaction will post. For a same-day shut-off notice, do not assume that submitting a card payment automatically stops a field order; ask the provider what amount and confirmation are required.

Never send your account number, password, card details, or bank information to Water Ledger. Those details belong only on the provider’s verified payment channel or at an authorized counter.

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