Fort Bend County MUD #81 provides clean and reliable drinking water by maintaining and investing in our water delivery system infrastructure. The water delivery infrastructure consists of water storage tanks, pumping facilities, water well facilities and the water distribution pipelines.


Inframark, LLC
Office and Call Center Hours
2002 W Grand Pkwy. N., #100
Katy, TX 77449

Monday- Friday: 7:00 a.m.- 6:00 p.m. (CST)
General Customer Service: (281) 579-4500
After-Hour Emergencies: (281) 398-8211
Email: MUDCustomerService@inframark.com

For over 30 years Fort Bend County MUD #81 has provided safe and reliable drinking and wastewater services to our customers. Our highly experienced and dedicated team embraces a fiscally responsible management practice while assuring compliance with regulatory requirements to protect the health of our customers and the environment. We also strive to provide these services and systems at the lowest cost to our customers, because we know that clean and dependable water is important to the health and lives of our residents.

New Service

To setup water and sewer service with Fort Bend County MUD #81 on a single family residential home, an applicant is required to pay a $40.00 non-refundable transfer fee. An additional $50.00 deposit is necessary to insure prompt monthly payments are made for these services. Deposits can be made in person at Inframark, LLC, located at 2002 West Grand Parkway North, Suite 100, Katy, TX 77449; or you can mail a check payable to Fort Bend County MUD #81 to the following address.

Fort Bend County MUD #81
P.O. Box 684000
Houston, TX 77268

Click Here To Get New Service

Payment Options

Please have your FULL ACCOUNT NUMBER listed on your PAYMENT STUB

Payments are processed within 3 business days of receipt:

Click Here To Pay Your Bill Online

Check By Web Or Phone Credit Card By Web Or Phone QR Code On Bill
Available 24 Hours
$1.00 Fee
281-579-4500 Press 1
3% Fee
281-579-4500 Press 1
Check: $1.00 Fee
Credit Card: 3% Fee
********************** Not Available On Bank Holidays **********************

In-Person: Checks, Money Order or Cashier’s Check ONLY
2002 West Grand Parkway North, Katy, Texas 77449
Payment lobby and payment drop box located on the North side of the building.
Phone: (281) 579-4500 (Select Option 1)
Office Hours: 7:30 AM – 5:00 PM (CST)

P.O. BOX 684000, Houston, Texas 77268

Auto Draft (please click on “PAY MY BILL” at the top of PayMyInframarkBill.com.)

  • Credit/Debit Card payments, convenience fee of 3% of payment amount
  • Electronic Check, convenience fee of $1.00

(Any payments dropped off after 5:00 PM will be posted the next business day)

Water Outage Procedures

Fort Bend County MUD #81 will inform affected residents as soon as possible if there will be a disruption of service. However, in some emergency situations where there is a disruption in service caused by property damage, there may be little or no opportunity to provide advance notice. Sometimes the only notice provided to residents could be a crew working in the area.

Water Outages

Please call Inframark, LLC. at 281-398-8211 to report an outage. You can view Consumer Alerts at any time to check for scheduled water service interruptions.

Report An Emergency

Fort Bend County MUD 81 encourages customers to report water or sewage problems by calling Inframark, LLC. our Operator, at 281-398-8211, 24 hours a day, 7 days a week.

The calls reporting an emergency are important to as they allow Inframark to locate the cause of the issue and evaluate options to arrive at the most appropriate corrective action. Every situation is different, as some will require an immediate repair, while others may take several days. In some extreme situations, it may be necessary to involve county or state entities. All situations need to be reported to prevent property damage or a waste of precious water resources while keeping our residents safe.

Accordingly, the process of providing the correct information such as location and severity of the emergency allows Inframark to dispatch appropriate personnel to evaluate the situation. During the evaluation process, Inframark will be making a determination as to whether the issue is located on the District’s water or sewage lines, or if it is located within the resident’s water or sewage lines. If it happens to be within the Resident’s responsibility, Inframark will assist in isolating and understanding the issue. Residents should know where the incoming water shut-off valve is located and how to turn it off.

Emergency Preparedness
As required by SB-361, Fort Bend County #81 has modified all active sewage lift stations for emergency pumping to the waste treatment Plant during an extended power outage. This will be done by using portable diesel driven pumps. All Fort Bend County MUD #81 facilities have emergency backup for operation during power outages.

Water Conservation/ Leak Tips