Houston has multiple water providers: City of Houston Water, Clear Lake Water Authority, Houston Water (Kingwood Utility District 5), Harris County MUD, Timber Lane Utility District, Harris County Fwsd 51, Clear Brook City Mud, Northwest Park Mud, Harris County Water, Harris County Mud 71, NW Harris County Mud 5, Harris County Mud 26, Harris Montgomery County Mud 386, Harris County Mud 167, Harris County Mud 200 - Cranbrook, Cnp Utility District, Remington Mud 1, Fort Bend Mud 30, Fort Bend MUD 23, City of Houston Water - Contact, Pay Bill, Start or Stop Service and more, Harris County MUD, Cimarron Mud, Harris County Improvement District, Harris County Mud 120, Harris County Mud 157, Harris County Mud 1, Harris County Mud 81, Harris County Mud 368, Harris County UD 6, Lantana Water - Denton County Fresh Water Supply District 7, Rayford Road Mud, Harris County Wcid 36, Spring Creek Utility District, Cypress Hill Mud 1, TOPS Water - Langham Creek Utility District, Newport Mud, Harris County Mud 285, Harris County MUD 102, Harris County Wcid 109, and Memorial Villages Water Authority, view all. This page provides information about Harris County Mud 120.

Harris County Municipal Utility District No. 120, a public community water system under local government, provides water to about 12,771 residents living in Houston, the most populous city in Texas. Founded in unknown, Harris County Municipal Utility District No. 120 System currently obtains its groundwater supply from two wells pumped from the Gulf Coast Aquifer.
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Houston Drinking Water Quality

Consumer Confidence Water Quality Reports

Under the authority of the Safe Drinking Water Act, the EPA requires Harris County Mud 120 to assess local water quality each year and distribute a Consumer Confidence Water Quality Report. At WaterZen, we review these reports and make the information available, in a concise, straightforward, and easy-to-understand way. You can find CCR report on the Harris County Mud 120 website.

Contact Harris County Mud 120 Customer Service

Have a Question, Issue or Comment?

Main Customer Service

Physical Address:
3200 Southwest Fwy Ste 2600
Allen Boone Humphries Robinson Llp
Houston, Texas 77027-7537


Emergency (24 hours - broken water main or pipeline, etc.)

Pay Your Harris County Mud 120 Bill

Already have an account?

If you already have an account, you just need to login to the Harris County Mud 120 site. Harris County Mud 120 accepts credit cards, debit, and direct deposit. Click here to login.

How to Start Houston Water Service

Starting Your Service

When you move to a new home in Houston, you'll most likely already have running water, but you'll still need to set up water service with the Harris County Mud 120. Luckily, Houston has made it pretty simple with the following online form. Starting service generally takes just two business days.

Click here to fill out a Start Service Form.

Stopping Your Service

When you move out of a home in Houston, you'll need to stop your water service with the Harris County Mud 120, so you don't keep getting billed. Simply fill out the following online form. Stopping service normally takes just two business days.

Click here to fill out a Stop Service Form.