Certain education and experience requirements must be met to take the exam. Fully complete an Examination Application Form and submit it with the correct fee to the Minnesota Department of Health. The deadline for accepting applications is 15 days before the examination date. We will notify you by mail if you have been approved to take the exam. The written examination contains multiple choice and math questions.
All exams are closed book and have a two-hour time limit.
You will be given a formula sheet and we suggest the use of a calculator. An operator must score 70 or more points out of 100 to pass an exam. Water examinations are given several times per year, usually on the last day of a formal training course. Exam sessions for individual operators will not be scheduled. You will be sent a letter notifying you of your examination score.