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Have you ever wondered what these holes in the sidewalks do?
Essentially, what these storm drains do is they catch the water runoff that ends up near sidewalks and roads and transports them to nearby rivers and streams. (kingcounty.gov)
They also separate the litter and debris from streets and sidewalks. (kingcounty.gov)
Have you ever wondered where the wastewater goes after you flush the toilet?
It goes through the wastewater filtration system, in fact, every output of water goes through this system!
Afterward, the water goes back into another body of water to begin the cycle again.
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