Did you know you can check the irrigation license of anyone online?

https://www2.tceq.texas.gov/lic_dpa/index.cfm?fuseaction=licall.searchindiv

Texas requires anyone working on your irrigation system to have an irrigation license (or a plumbing license).

This helps keep our water supply protected by requiring training to ensure contaminated water does not get introduced into your home or the public water supply.