Water Payment Options

Dropbox Payments:

Payments are not accepted at the HCMUD 81 Administration Building. The payment dropbox is at:

6420 Reading Road,
Rosenberg, TX 77471.

Make payments online Click Here

Visa/MasterCard/Discover/AMEX (no convenience fee) – Will post next business day
Electronic Check (no convenience fee) - Will post within 2-3 business days

Paperless Billing

Sign up for Paperless Billing via the link above and have the option of paying your bill directly from your email by clicking PAY NOW.
Visa/MasterCard/Discover/AMEX (no convenience fee) – Will post next business day

Monthly Auto-draft (drafted on due date)

Visa/MasterCard/Discover/American Express (no convenience fee)
Bank Draft (no convenience fee)
Activation completion indicated by first invoice that states "DO NOT PAY"

Pay by Phone

Make payments through Pay-By-Phone by dialing 832-490-1600.
You will need your Customer Account Number and payment information.
Visa/MasterCard/Discover/AMEX (no convenience fee) – Will post next business day
Electronic Check (no convenience fee) - Will post within 2-3 business days

All Walmart Locations (Check-Free) Convenience fee varies - see store for details

Standard processing (delivered in 3 business days)
Next Day processing (delivered next business day)

Western Union Quickpay locations (various HEB, Kroger and Fiesta stores)

Convenience fee varies - see store for details

Bill-pay through your banking institution *

Please be sure to include your account number when setting up bill-pay through your banking institution.
(Up to 10 days for processing from the date that the bank issues the payment)

Pay by Mail

Checks sent via the USPS
This includes online bill-pay through your banking institution

PO Box 4824
Houston, TX 77210-4824

Drop Box NO CASH ACCEPTED (Cashier's or Personal Checks and Money Orders only)

6420 Reading Road
Rosenberg TX 77471

Questions About your Bill

Contact Si Environmental
832-490-1600 (local dialing)
1-877-382-7414 (toll free)

* Online Bill-pay through your banking institution generally involves your bank utilizing a third party to create a check that is sent to the address that you specify. Si Environmental, LLC. has no control over the check creation and mailing process for this service. All payments are processed within 24 hours of receipt by Si Environmental, LLC.