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Fun Facts About Water and Wastewater

We did a fun post on fun facts about the oil and gas industry, so we decided to do another one for the water and wastewater industry. If you’re a water and wastewater professional, or someone interested in the field, put on your thinking caps and test your knowledge with these fun facts. If you know of other interesting facts that weren’t included, email us at and we will add it to the list.
Did You Know
1. A short 5-minute shower uses between 25 – 50 gallons of water. That’s a lot of water. That’s comparable to washing a load of clothes.
2. To get one inch of water from snow, you need to melt bout 10 inches of snow first.
3. It takes 10 to 15 gallons of water to wash dishes by hand, but ONLY nine to 12 gallons of water are used in a dishwater.
4. In the United States alone, about 22,500 square miles of toilet paper get used annually, which is about the same area covered by the Central Valley in California.
5. To make one gallon of milk, a cow must drink four gallons of water.
6. About 50 glasses of water are used to grow enough oranges to make one glass of orange juice.
7. Humans can only live a few days without water, but a month without food.
8. About two-thirds of the water we use at home occurs in our bathroom.
9. Watermelons are made up of 93 percent water, tomatoes are made up of 90 percent water, and elephants are made up of 70 percent water.
10. About $10 million is spent annually on chemicals to make toilets in the United States smell better.
11. In older toilets, three gallons of clean water gets used with every flush. But in newer toilets, as little as one gallon gets flushed.
12. Raindrops fall to Earth at speeds of up to 22 miles per hour, which is almost as fast as human runners, who max out at a speed of 23.4 miles per hour.
13. Water regulates the Earth’s temperature. It also regulates the temperature of the human body.
14. It takes 11 gallons of water to produce one slice of bread.
15. About 97% of the Earth’s water is undrinkable. And another two percent is tied up in glaciers and ice caps. And the remaining one percent is left for our own needs.

TNphoto Tatsuya Nakagawa
Tatsuya Nakagawa is the VP of Marketing and co-founder of Castagra Products, a storage tank and wastewater coatings manufacturing company that is highly acclaimed for its sustainable coatings and cold weather coating applications. Castagra products are NSF-61 certified and are used by the world’s top water and wastewater contractors.