Rosemead Water Department - Pay Bill, Contact, Address & Services
Everything you need for Cal American Water Co — serving 66,809 residents in Rosemead, CA.
66,809
Residents Served
20,251
Connections
Mon–Fri 8:00 AM – 5:00 PM
Office Hours
Rosemead Water Department Address
Rosemead, CA 91770
Local Tip: Street parking near Rosemead municipal offices fills up fast before 10 AM. Arrive early if paying in person or drop your check in the after-hours payment box.
Rosemead Water Department Contact
Customer Service
(626) 614-2531
Office Hours
Mon–Fri 8:00 AM – 5:00 PM
How to Pay Your Rosemead Water Bill Online
Visit the Official Payment Page
Go to the Cal American Water Co website. Look for the "Pay My Bill" or "Online Payments" section.
Visit Official Website →Enter Your Account Number
Find your account number on your paper bill (top-right corner). Enter it along with your last name or service address.
Choose a Payment Method
Select credit card, debit card, eCheck, or bank draft. eCheck is often free while cards may have a small convenience fee.
Confirm and Save Your Receipt
Review the total, submit payment, and save or screenshot your confirmation number. Payments usually post within 1-2 business days.
Quick Tip: Payments made before 3 PM usually post the same business day. Weekend and holiday payments process the next business day.
Rosemead Water Bill Payment Guide
Complete step-by-step payment instructions, accepted methods, billing tips, and more.
💡 Rosemead Insider Tips
Best Time to Call
Lines are shortest right when the office opens. Try calling at 8:00 AM on a Tuesday or Wednesday to skip the queue.
Save on Fees
Rosemead accepts eCheck payments at no extra charge. Card payments may add a $2-3 convenience fee per transaction.
Start, Stop, or Transfer Water Service
Start New Service
Moving into Rosemead? Contact Cal American Water Co at least 3 business days before your move-in date.
✓ Valid photo ID required
✓ Proof of address (lease or deed)
✓ Deposit may apply for new accounts
Stop Service
Moving out? Request disconnection at least 2 business days ahead. You will receive a final bill.
✓ Final meter reading scheduled
✓ Forwarding address for final bill
✓ Deposit refunded within 30 days
Transfer Service
Moving within Rosemead? Transfer your existing account instead of closing and reopening.
✓ Same account number kept
✓ No new deposit needed
✓ Processing: 1-3 business days
Report Water Issues in Rosemead
Water Leak
Notice water pooling near the street or sidewalk? Call Cal American Water Co immediately. Do not try to access the meter box yourself.
Sewer Backup
Call your utility before contacting a plumber. Rosemead will check the main line first at no charge if the issue is on their side.
Service Outage
No water? Check with your neighbors first. If the outage is widespread, call (626) 614-2531 for a restoration estimate.
Real-Life Tip: Take a quick photo or video of the issue before calling. It helps dispatch prioritize and gives the crew a head start before arriving on site.
Rosemead Water Billing & Fees
Official Rosemead Water Links
Rosemead Water Department FAQ
Visit the official Cal American Water Co payment portal online. You can pay with a credit card, debit card, or eCheck. A guest pay option is available if you do not have an online account.
You can reach Cal American Water Co at (626) 614-2531. The office is open during Mon–Fri 8:00 AM – 5:00 PM.
Cal American Water Co is located at 8657 Grand Ave., Rosemead, CA 91770.
Yes. Most municipal portals offer a one-time guest payment option. You only need your account number from a recent paper bill.
Call Cal American Water Co immediately at (626) 614-2531. For after-hours emergencies, most departments have a 24/7 hotline. Do not attempt to fix a main line break yourself.
Contact Cal American Water Co at (626) 614-2531 at least 3 business days before your move date. Bring a valid ID and proof of address to start new service.