Maintaining your education is important, especially in a career that demands licensing exams. Prove you’re an expert operator by answering this question and others from our Exam Study Guide Series. Take a look at this sample wastewater treatment licensing question along with an explanation of the correct answer.Sample question:What is the MCL for Haloacetic acids?A) 60.0 mg/LB) 0.060 mg/LC) 0.060 ug/LD) 6.0 ug/LThe correct answer is B, according to the EPA. The potential health effects from long-term exposure above the MCL include an increased cancer risk. Haloacetic acids are a byproduct of disinfecting drinking water.About the author: Drew Hoelscher is the program director of drinking
