If you have a life-threatening emergency, please dial 911.
If you have a sewer emergency, such as a water quality issue, a broken water main, or a sewer overflow please call:
Business hours: (210) 702-2400
After hours: (726) 203-1489
Report a Problem
If your problem or concern is not urgent or an emergency, please complete our Customer Contact Form.
General Information for New Customers
Mailing Address: P.O. Box 701201, San Antonio, TX 78270
Office Hours: 8:30 am – 4:30 pm Monday through Friday
Joint Billing Agreement with Green Valley SUD effective November 1st, 2019. Click here to download notice.
Rate increase in effect January 1st, 2020. Click here to download notice.
Public Utility Commission of Texas ZRU CCN No. 21098 Tariff (please see page 12). Click here to download.
Notice to Homeowners and Plumbers
Requirements for Homeowners and plumbers regarding ZRU’s operations and compliance with the Texas Commission on Environmental Quality.
Authorization Form to Change Account
Required if legal name change, change of ownership, etc.
Office will be closed on the following Holidays 2020:
|January 1, 2020||New Year’s Day|
|January 20, 2020||Martin Luther King, Jr. Day|
|February 17, 2020||President’s Day|
|April 10, 2020||Good Friday|
|May 25, 2020||Memorial Day|
|July 3, 2020||Independence Day|
|September 7, 2020||Labor Day|
|November 11, 2020||Veterans Day|
|November 26 & 27, 2020||Thanksgiving Day|
|December 24 & 25, 2020||Christmas|
|December 31, 2020||New Years Eve|
|January 1, 2021||New Year’s Day|