Media Summary: This question comes from the California Wastewater grade 1 certification exam sample questions that can be found here: ... To enroll in an online math course: For more practice In this video we calculate how long water spends in a clarifier at a water treatment plant.
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This question comes from the California Wastewater grade 1 certification exam sample questions that can be found here: ... To enroll in an online math course: For more practice In this video we calculate how long water spends in a clarifier at a water treatment plant. This is a series of study videos for Water Operator Math 9
