OPERATOR-IN-TRAINING Basic and Applied Math20-25% Basic and Applied Science20-25% Operating Procedures30-35% Safety15-20% Legislation5-10% Study Guide  Glossary  % indicates percentage of questions in each of the modules CLASS 1 CERTIFICATION WATER TREATMENT OPERATOR-IN-TRAINING | CLASS 1 CERTIFICATION info@watertraining.ca TEL 1.807.737.1135 ext. 4000 or 4001 TOLL FREE 1.877.737.5638 ext. 4000 FAX 1.807.223.8426