The Greater New Haven Water Pollution Control Authority (GNHWPCA) manages sewer and wastewater services for communities including New Haven, Hamden, East Haven, Woodbridge, and parts of North Branford in Connecticut. Paying your sewer bill on time helps avoid late fees, supports environmental protection efforts, and keeps your account in good standing. GNHWPCA offers secure payment options through its Customer Account Portal, phone payments via an automated system, mail, authorized in-person locations, and automatic bank draft enrollment.
Access the secure Customer Account Portal to view your bill, make payments, or register at https://cap.gnhwpca.com/.
For complete and up-to-date details on all payment methods, visit the official Billing Information page at https://gnhwpca.com/custom-service/billing-information/.
Pay Online Through the Customer Account Portal
The primary and most convenient way to manage your GNHWPCA sewer bill is through the secure Customer Account Portal. After registering, you can view your current balance and due date, make one-time or scheduled payments, enroll in paperless billing, and review payment history.
How to get started:
- Visit https://cap.gnhwpca.com/
- Register using your account number (found on your bill) and other required details
- Log in to access payment options
The portal accepts credit cards, debit cards, and e-checks (electronic checks from checking or savings accounts). Payments process securely with confirmation provided. This option gives you full visibility into your account and is available 24/7 once registered.
Pay GNHWPCA Bill by Phone
You can make payments over the phone using the automated Interactive Voice Response (IVR) system or by speaking with customer service.
Phone number: 203-776-3570
Have your account number ready. The automated system allows credit/debit card or e-check payments. Customer service representatives are available during business hours (typically Monday–Friday, 8:30 a.m. – 4:00 p.m.) to assist with payments, account questions, or payment arrangements. This option works well when you need assistance or prefer not to use the internet.
Pay by Mail
Mail your check or money order (payable to GNHWPCA) along with the payment stub or your account number clearly written on the check.
Mailing address: GNHWPCA Customer Service Office 260 East Street New Haven, CT 06511
Allow at least 5–7 business days for delivery and processing. Include your full account number to ensure accurate and timely crediting. Use the address printed on your current statement whenever possible.
Pay In Person at Authorized Locations
GNHWPCA accepts payments at its Customer Service Office and several authorized alternate payment locations throughout the Greater New Haven area.
Main Office: 260 East Street, New Haven, CT 06511
Note: The main office building is currently closed to the public. Payments at the office are limited; most in-person payments are handled at authorized alternate locations.
For a complete and current list of authorized payment locations (such as banks or other convenient spots), visit the official Alternate Payment Locations page on the GNHWPCA website. These locations typically accept checks or money orders. No cash payments are accepted at the main office. Always confirm the location accepts GNHWPCA payments and current hours before visiting.
Automatic Payments (Auto Pay / ACH)
GNHWPCA offers a convenient Auto Pay program that automatically deducts your sewer bill from your checking account on the due date.
How to enroll:
- Download and complete the Auto-Pay Enrollment ACH Application Form (available on the official website)
- Include a voided check
- Mail or submit the form as instructed
Once enrolled, payments are made automatically, helping you avoid late fees. You can cancel or modify your enrollment by contacting customer service. This is one of the most reliable ways to stay current on your sewer bill.
Important Billing Information
Bills are typically issued on a regular schedule with a clear due date. Late payments may result in fees or other collection actions. Contact GNHWPCA promptly if you anticipate difficulty paying—payment arrangements may be available in certain situations. Keep your account number readily available for all transactions. The Customer Account Portal provides the fastest way to view your exact due date and balance.
Customer Service and Contact Information
Customer Service & Payments: 203-776-3570 (Monday–Friday, 8:30 a.m. – 4:00 p.m.) Fax: 203-776-2196 Email: Use the contact form on the official website or email inquiries as directed on gnhwpca.com
Physical/Mailing Address: 260 East Street, New Haven, CT 06511
For emergencies or after-hours issues, use the main number or check the website for updates. Have your account number ready when contacting support for faster assistance.
FAQs
How do I pay my GNHWPCA sewer bill online? Register or log in at the Customer Account Portal: https://cap.gnhwpca.com/. You can then view your bill and make payments with a credit/debit card or e-check.
What phone number do I call to pay my GNHWPCA bill? Call 203-776-3570. Use the automated IVR system or speak with a representative during business hours.
Where can I pay my GNHWPCA bill in person? Payments are accepted at authorized alternate payment locations throughout the Greater New Haven area. Check the official list on gnhwpca.com for current locations. The main office at 260 East Street has limited public access.
What is the mailing address for GNHWPCA payments? Send checks or money orders to GNHWPCA Customer Service Office, 260 East Street, New Haven, CT 06511. Include your account number.
Can I set up automatic payments for my sewer bill? Yes. Download the Auto-Pay Enrollment form from the GNHWPCA website, complete it with a voided check, and submit it to enroll in ACH bank draft.
Does GNHWPCA accept credit cards? Yes, credit and debit cards are accepted through the online portal and phone system. In-person options at authorized locations may vary.
How long does it take for mailed payments to post? Allow at least 5–7 business days for mail delivery and processing.
What should I do if I cannot pay on time? Call 203-776-3570 immediately to discuss payment options and avoid late fees or collection actions.
