Texas Commission on Environmental Quality (TCEQ). Class C Water License Exam

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A groundwater well producing 1.4 MGD should be converted to how many GPM?

  1. 800 gpm

  2. 972 gpm

  3. 1,200 gpm

  4. 1,400 gpm

The correct answer is: 972 gpm

To convert million gallons per day (MGD) to gallons per minute (GPM), you can use the following conversion factors: 1 MGD is equivalent to 1,000,000 gallons in a day and there are 1,440 minutes in a day (24 hours x 60 minutes). Therefore, the conversion formula is: GPM = (MGD × 1,000,000 gallons) / 1,440 minutes. Applying this to a well producing 1.4 MGD: GPM = (1.4 × 1,000,000) / 1,440 GPM = 1,400,000 / 1,440 GPM = 972.22. When rounded appropriately, this results in approximately 972 GPM. This calculation aligns with the correct answer, which reflects accurate conversion from daily output in million gallons to a minute flow rate in gallons. Understanding this conversion is essential for water management and ensuring that systems are appropriately calibrated for the flow rates involved in various applications.