Aptos High School Global Health Odyssey
Health Professionals Use Math for Problem Solving
Water System Manager 1.

Water is treated with chlorine to prevent microbes like bacteria and viruses. Because chlorine is poisonous in concentration (donít drink that bleach!), the dosage for drinking water is 0.001%

  • If the community served has a water flow of 600,000 gallons a day, and water weighs 8.34 pounds per gallon, how many pounds of chlorine must be added per day?
  • Hint: rewrite the % as a decimal, solve the proportion, then convert gallons to pounds.

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