Payment research · dataset 2026.08
Payment options for California-American Water Company - San Marino 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
- Paymentus for guest payment and California American Water MyWater for registered account management; MyWater login is https://login.amwater.com/.
- Phone payment number
- 1-855-748-6066, California American Water's automated payment line. It accepts the 16-digit account number and supports card or electronic-check payment. General customer service is 1-888-237-1333, Monday through Friday 7:00 a.m. to 7:00 p.m.; water emergencies are handled 24/7.
- Pay-by-text
- California American Water's current San Marino billing materials do not publish a text-to-pay keyword, short code, or SMS enrollment workflow. The company may send account alerts or notices when contact information is maintained, but customers should enroll for payment through MyWater or use the Paymentus guest-pay page and should not enter credentials into an unsolicited text message.
- Mail-in payment address
- California American Water, P.O. Box 7150, Pasadena, CA 91109-7150. Mail a check or money order with the payment stub and allow sufficient postal time. The company instructs customers not to mail cash and not to use staples or paper clips with the payment.
- In-person payment
- The current California American Water payment page does not identify a staffed San Marino cashier or a fixed public counter schedule. Customers can use authorized payment locations by presenting the bill barcode; the barcode can also be texted to the customer's own phone from the bill for scanning at a participating location. Location availability and hours vary by authorized retailer, and the current locator controls. No cash should be mailed; customers should confirm accepted instruments and retailer fees before paying in person.
- Digital payment methods
- Paymentus and MyWater accept Visa, Mastercard, Discover, American Express, and bank-account electronic check/ACH-style payments. MyWater also supports scheduled payments, account history, paperless billing, alerts, and usage viewing. Apple Pay and Google Pay are not identified in the reviewed California American Water San Marino materials.
- Online convenience fees
- California American Water states that the former $1.95 third-party credit-card transaction fee has been eliminated. The current public billing page does not publish a separate 2026 online card, debit, or electronic-check surcharge for Paymentus, so customers should review the final confirmation screen for any processor charge before submitting payment.
Directory comparison
Payment-information visibility
| Measure | This provider | California | National index |
|---|---|---|---|
| Usable payment URL identified | Yes | 81% | 73% |
| Fee or no-fee amount disclosed | Yes | 24% | 15% |
| Payment fields documented | 8 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
- California-American Water Company - San Marino Service Area public website ↗
Provider-controlled destination used to confirm current customer instructions.
- Provider-published payment destination ↗
External account or guest-payment route; verify the provider name before entering information.
- login.amwater.com reference ↗
Public URL preserved in the compiled record. Confirm its publisher, date, and applicability before relying on it.
- dollarenergy.org reference ↗
Public URL preserved in the compiled record. Confirm its publisher, date, and applicability before relying on it.
- EPA SDWIS / ECHO lookup (CA1910139) ↗
Search the federal drinking-water database using public water system ID CA1910139.