Earn a $50 water bill credit

San Angelo’s Water Utilities Department is seeking homeowners to participate in a free household water-quality testing program ... and is willing to give a $50 credit on water bills for those who do.

The program will check homes’ water and plumbing for the presence of lead and copper. The state requires the testing as a public health safety measure. San Angelo has had zero violations.

The Texas Commission for Environmental Quality requires the Water Utilities Department to increase the program and number of test sites to 100 homes now that San Angelo’s population has surpassed 100,000 residents.

To participate in the program, homeowners must first verify whether their home has lead plumbing, lead-based solder or a lead service line to the City’s water main. Homes built from 1982 to 1988 are most likely to have lead in their lines.

To check for a lead service line or lead plumbing, find the water service line that enters a home from the City water main. Scratch the outside of the water line with a screwdriver, knife or other metal object. If the etch is silver-gray in color, it is likely a lead service line. If it is copper-colored, it likely does not contain lead. To determine if a home has lead plumbing lines, check the inside plumbing under a kitchen or bathroom sink the same way one would check for a lead service line.

Homeowners who confirm their home has either lead-based plumbing or a lead service line will qualify to participate in this study. Contact the Water Utilities Department at 325-481-2722 or water@cosatx.us for more information.

Water Quality

The Water Quality Division's mission is to analyze and evaluate the quality of the source water, treated water and wastewater for compliance with state-mandated water quality standards. 

This mission is accomplished through the cooperation of various City operations, including the water treatment plant, the wastewater treatment plant, and the Water and Wastewater Collections and Distribution divisions.


The Water Quality Division was formed in 1997 after the consolidation of three separate City laboratories, including the water treatment plant laboratory, the wastewater treatment plant laboratory, and the City/County Health Department laboratory. Consolidation of these three labs provided for more efficient analyses, as well as better cross-training for laboratory personnel. The laboratory was awarded NELAC Accreditation for bacteriology in 2008.

Information and resources

Current drought level

The City is in standard conservation, which restricts outside watering to no more than twice every seven days and no more than 1 inch per week. Watering is prohibited from noon-6 p.m., as is runoff of more than 150 feet down any street, gutter, alley or ditch. 

Report watering violations by clicking on this link or calling 325-657-4409. For more information, go to cosatx.us/water. Do your part; be water smart! 

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