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Texas Basic Water Works Operations

How To Get Your Texas Class D Water Operator License

Public water system operators in Texas who perform process control duties in production or distribution of drinking water must be licensed with the Texas Commission on Environmental Quality (TCEQ).  Class D is the entry level for Water System Operator licenses in Texas.  In order to get your Class D license,  you must meet the following education and work experience requirements described below.

Education and Work Experience Requirements

  •  Education: High School diploma or GED.
  • Work Experience: No work experience requirements

Training Course

After meeting the education and work experience requirements, you must apply for and pass the Class D Water Treatment Operator exam.

Application and Examination



American Water College offers courses to help Texas Water Operators meet the training requirements and prepare to pass their licensing exams the first time.  Our exam preparation courses cover all the material you need to know using the most effective training methods so you will have the confidence you need to succeed.  Click HERE to download your FREE copy of Certification Exam Tips.

Click HERE to download your FREE Guide to Getting and Maintaining Your Water Operator License in Texas.