Bill Payment Information

Inframark serves as a water/ wastewater utility operator for Harris County MUD 489.

Inframark Corporate Office
Attn: Mackenzie Osborne
2002 W Grand Pkwy N #100
Katy, TX 77449

Phone: (281) 579-4500
Email: MUDCustomerService@inframark.com

Mailing Address
Harris County MUD #489
PO Box 4728 DEPT 60489
Houston, TX 77210-4728

**Please make all payments payable to Harris County MUD 489**

If you are looking to signup for new service visit https://idologywebnet.azurewebsites.net/Welcome/?district=HC489

Pay Your Bill Online

Customer Support

For billing, service requests and other inquiries us the following:

General Customer Service Number: (281) 579-4500

Customer/Billing Inquiries Email: MUDCustomerService@inframark.com

For general phone inquiries, please contact Inframark Customer Service department Monday through Friday from 8:00 a.m. to 5:00 p. m., with the exception of holidays.

Our payment window hours are Monday through Friday from 8:00 a.m. to 5:00 p.m.

For after-hour emergencies, please contact Inframark Dispatch team at (281) 398-8211.

Service Rates:


Water Rate (Single Family Residential)

$ 18.00Minimum Rate for Service
$ 1.75Rate per 1,000 gallons metered for usage between 5,001 gallons and 10,000 gallons
$ 2.00Rate per 1,000 gallons metered for usage between 10,001 gallons and 20,000 gallons
$ 2.50Rate per 1,000 gallons metered for usage above 20,001 gallons

Sewer Rate (Single Family Residential)

$ 63.29Minimum Rate for Service

West Harris County Regional Water Authority Groundwater Reduction Plan Fee

$ 4.66Rate per 1,000 gallons of metered usage
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