Texas, TCEQ, Water System Operator, Class D
Today's 5: Texas Class D Water operator math
Five operator-math problems for the Texas Class D water exam, mixed across the 3 subjects TCEQ confirms at this grade, fresh every day. Each one checks your answer and shows all ten worked steps. No account, no score claim, and your set saves on this device.
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Good to know
Where this fits on the official examThe TCEQ subjects and math scope this set draws from
- The official subject list this module serves
- Eight official Need-to-Know subjects: Rules/Regulations; Safety; General; Groundwater; Surface Water; Storage/Distribution; Disinfection; Math.
- Source: TCEQ Water Operator Exam Knowledge ('Need-to-Know Criteria for Class D Water Operators' table.)
- The official math scope
- Class D math: use common conversion units from a table of equivalents; solve basic water utility problems using area, volume, and chemical dosage formulas.
- Source: TCEQ Water Operator Exam Knowledge (Class D criteria, 'Math' row (detention time first appears in the Class C criteria).)
Last reviewed 2026-08-01. Facts link to their official source.