The District’s water system, is a shared system with Harris County Municipal Utility District No. 364 (MUD 364) and consists of three water wells, storage tanks, pumps, pressurization tanks, and miles of pipe to deliver the water to your homes. This system provides water to the residents of Coles Crossing (MUD’s 364,365), The Park at Arbordale (MUD 365), and Stillwater Village (MUD 364), as well as a few surround commercial properties.

Si Environmental, LLC

6420 Reading Road, Rosenberg, Texas 77471
Phone: (832) 490-1500; Fax: (832) 490-1501
Customer Service: customercare@sienv.com

Do you have an Emergency?
832-490-1601 – Local Dialing
1-877-382-7416 – Toll Free

Payment Options

View and Pay Your Bill Online

To review or pay your bill online, please ensure that you have JavaScript enabled on your browser. You can check this by clicking here.

  • Visa/MasterCard/Discover/AMEX (3% Convenience Fee*) – Will post next business day
  • Electronic Check ($1.00 transaction fee*) – Will post within 2-3 business days

Click here to pay your bill online.

  • 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 using Visa/MasterCard/Discover/AMEX (3% Convenience Fee*) – Will post next business day
Pay-by-Phone

You can also pay your water bill by phone!  Simply call:

888-945-8720
The First Billing Services office is open Monday – Friday from 8:00AM– 4:30PM CT

You can also contact the 24 hour automated phone bill payment system. The phone number for your district is located on your bill.

  • Make payments through Pay-By-Phone by dialing 888-945-8720 for HARRIS COUNTY MUD 365
    • You will need your Customer Account Number and payment information.
    • Visa/MasterCard/Discover/AMEX (3% Convenience Fee*) – Will post next business day
    • Electronic Check ($1.00 transaction fee*) – Will post within 2-3 business days
Text and Pay Using Your Mobile Device
  • Visa/MasterCard/Discover/American Express (3% Convenience Fee*) – Will post next business day
  • Electronic Check ($1.00 transaction fee*) – Will post next business day
Monthly Auto-draft (drafted on due date)
  • Credit Card (3% Convenience Fee*)
  • Bank Draft ($1.00 Per Transaction*)
  • Activation completion indicated by first invoice that states “DO NOT PAY”
All Walmart Stores Internationally
  • Convenience fee varies – see store for details*
Western Union Quickpay Locations (various HEB, Kroger and Fiesta stores)
  • Convenience fee varies – see store for details* – Will post within 2-3 business days
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).
Lockbox
  • Checks sent via the USPS
  • This includes online bill-pay through your banking institution
  • Remittance Address: PO Box 4824, Houston, Texas 77210-4824
Drop Box

***NO CASH ACCEPTED***

* – These charges are third party transaction charges that are not associated or collected by Si Environmental, LLC. or your water utility district.

** – 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.

Water Rates

The District’s water and sewer service rates escalate with higher usage in order to encourage water conservation and responsible use by the District’s residents. For a single family home, the District’s water and sewer rates are as follows:

Water

0 – 10,000 gallons
$5.00 minimum bill

10,001 – 15,000 gallons
$1.00 per 1,000 gallons

15,001 – 25,000 gallons
$1.75 per 1,000 gallons

25,001 – 35,000 gallons
$2.50 per 1,000 gallons

35,001 to 60,000 gallons
$3.50 per 1,000 gallons

Above 60,000 gallons
$5.00 per 1,000 gallons

Sewer

Flat Rate $14.00 per month

North Harris County Regional Water Authority Fee

$3.85 per 1,000 gallons

The District’s operator reads all the meters within the District on a monthly basis and handles the District’s billing and customer service matters. If you have any questions regarding your water and/or sewer service, please contact SI Environmental at (832) 490-1600 or customercare@sienv.com. All customer calls to SI Environmental are reported to the Board of Directors at its monthly meeting.  If you have an emergency repair to report, call the 24 hour hotline at (832) 490-1601.

MEETINGS

Next In-District Meeting

November 11, 2019 at 7:00 PM
13050 Barker Cypress Road
Cypress, Texas 77429
Special Meeting Agenda (PDF)

Next Business Meeting

November 21, 2019 at Noon
Allen Boone Humphries Robinson LLP
3200 Southwest Freeway
Houston, Texas 77027