Mail Payments to: DCWWA Box 8000 Department 232 Buffalo, NY 14267-0002 845-486-3601 Take note Customer Account Numbers have changed and are in the following format according to the water/sewer system you are in. All accounts will have 3 digits-6 digits-2 digits. Example 001-009199-00. Please include your new account number on your check and all bill pays to ensure that your payment will be credited to your account.