California Wastewater Grade 4 Exam Prep
$49.00
Prepare for the California Wastewater Treatment Plant Operator Grade IV exam with 500 original practice questions across its thirteen knowledge areas — full 100-question timed practice exams on a 180-minute clock, thirteen topic drills, and a free 12-question sample. Every answer is explained. The verified Grade IV standard is 90 of 128 points, including at least 15 points on the math questions; our practice exams flag 70% as a practice benchmark only.
- Prepares you for: California Wastewater Treatment Plant Operator Grade IV Exam
- 14-day refund policy — full refund when less than 20% of the program has been attempted. Refund terms
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