Independent U.S. water utility directory · 2026 edition
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Payment channels

Pay CAL-AM WATER CORONADO

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 MyWater is the California American Water customer account portal at login.amwater.com. The official guest-pay endpoint is Paymentus at https://ipn.paymentus.com/rotp/awk; it accepts the American Water account number and email for a one-time payment.. Never enter account credentials into a lookalike site reached through an unsolicited message.

Open payment portal ↗

Telephone payment

Phone IVR

1-855-748-6066 for automated credit-card or electronic-check payment. The payer needs the 16-digit account number and can use Visa, MasterCard, Discover, American Express, or a bank account. General customer service and payment arrangements are available at 1-888-237-1333, Monday through Friday 7 a.m. to 7 p.m.; emergencies are accepted 24/7.

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

A dedicated this detail was not publicly posted. For text-to-pay enrollment. MyWater supports alerts and notification preferences, including water-emergency communications, and the company has described text or email alerts, but the San Diego County district does not publish a local pay-by-text keyword, short code, or text enrollment steps for directly submitting a bill payment.

Mail-in address

California American Water, P.O. Box 7150, Pasadena, CA 91109-7150. Mail the payment with the payment stub, make the check payable to California American Water, and do not send cash, staples, or paper clips. The district office and payment mail address are different, so customers should use the remittance address printed on the bill.

Counters, drop boxes, and office hours

California American Water identifies the San Diego County District office at 1025 Palm Avenue, Imperial Beach, CA 91932, with published office hours of 7:30 a.m. to 3:30 p.m. and district phone 619-446-5707. For bill payment, the company directs customers to an authorized payment-location locator and allows checkout payment using the unique barcode on the California American Water bill; the customer must bring the bill or know the amount due. The reviewed pages do not provide a complete static list of all authorized locations or a separate counter-payment schedule, so customers should confirm the location before visiting.

Accepted digital instruments

What you can use online

MyWater and the Paymentus one-time bill-pay channel accept bank-account electronic check or ACH-style debit and credit-card payments. The automated phone channel accepts Visa, MasterCard, Discover, American Express, and electronic check. MyWater also supports recurring credit-card or checking-account AutoPay, paperless billing, bank bill pay, and account alerts.

2026 transaction pricing

Convenience fees

California American Water states that the former $1.95 third-party transaction fee for credit-card payment has been eliminated on the listed online and phone channels. The official billing page does not publish a replacement percentage or separate 2026 ACH fee; customers should verify any fee disclosure shown by the live payment screen before authorization.

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 CAL-AM WATER CORONADO 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.