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US Water Bill PayIndependent U.S. utility directory
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Payment research · dataset 2026.08

Payment options for Golden State Water Company – South San Gabriel Customer Service Area

This page identifies provider-specific public payment information without accepting payments or asking for account credentials.

Provider-published destination

Official online route identified

Confirm the utility name, service address, balance, processing date, funding method, and final fee on the external page before submitting. US Water Bill Pay cannot see or post the transaction.

Continue to provider-published portal ↗

Provider-specific findings

Payment research for this provider

The compiled notes distinguish confirmed channels from details the public material did not expose. Fields containing only an unavailable-information marker are grouped in the research record below.

Payment platform
MyGSWater customer account portal; Golden State Water also authorizes KUBRA EZ-PAY for one-time web/mobile, telephone, and retail cash transactions.
Phone payment number
1-844-706-7690, Golden State Water’s 24/7 automated payment service. Customers need the account number and account telephone number. General customer and emergency support is available 24/7 at 1-800-999-4033 or local 909-394-2272.
Pay-by-text
Golden State Water sends past-due and planned-disconnection reminders by mail, email, text, and outbound calls when customers maintain contact details in MyGSWater. The reviewed current materials do not publish a separate SMS keyword, short code, or text-to-pay authorization flow, so customers should use the authorized MyGSWater/KUBRA portal or IVR and not pay through an unsolicited text link.
Mail-in payment address
Golden State Water Company, PO Box 51133, Los Angeles, CA 90051-1133. Make checks payable to Golden State Water Company and mail several days before the due date. The San Dimas corporate address, 630 E. Foothill Blvd., San Dimas, CA 91773, is not the lockbox address specified for mailed payments.
In-person payment
No staffed South San Gabriel cashier or satellite counter is identified on Golden State Water’s current payment page. Cash payment is available through participating KUBRA EZ-PAY retail agents: use the authorized locator, choose cash payment, generate an EZ-Payslip, and take the slip and cash to the selected retailer. A small retailer service fee applies and payments after 5:00 p.m. post the next business day. Telephone customer service and emergency support are available 24 hours a day, 7 days a week; no separate walk-in hours were published.
Digital payment methods
MyGSWater provides paperless billing, account history, payment history, and scheduled online payments. KUBRA EZ-PAY supports checking/electronic check, debit or credit card, and cash at participating retailers; Golden State’s tariff identifies ATM, Visa, Mastercard, Discover, or electronic check for the telephone channel. Utility electronic-funds-transfer AutoPay draws the total bill from checking or savings on the due date without a utility enrollment charge. Apple Pay and Google Pay are not identified in the reviewed materials.
Online convenience fees
CPUC Rule 9 identifies a non-refundable $1.45 convenience fee for credit/debit-card transactions up to $800, charged by the payment vendor rather than Golden State Water; separate transactions are assessed per account. KUBRA cash payments carry a small service fee. Bank AutoPay has no utility charge, though a financial institution may charge its own fee and rejected payments can incur additional charges.

Directory comparison

Payment-information visibility

MeasureThis providerCaliforniaNational index
Usable payment URL identifiedYes81%73%
Fee or no-fee amount disclosedYes24%15%
Payment fields documented8 of 8——

This comparison measures directory documentation, not payment quality, cost, or provider performance.

Research record

Broad public detail found

8 of 8 fields in this section contain provider-specific public detail in dataset August 1, 2026.

Documented

100%

Primary verification routes