I learned through both the Flint Michigan Crisis and the hydrology hyperdoc about how the water flows. I learned through the Flint Michigan Crisis about the water flowing through the pipes, and I learned through the hyperdoc that even animals can change the way the water moves.
The Flint Michigan Crisis could have been prevented if the pipes were checked and the water was checked and filtered. The old and dirty pipes caused the crisis, so if the pipes were checked more often the problem wouldn't have occurred because they would have found the problem first.
The Flint River water that was improperly treated causing lead from old pipes to leach into the water supply, leading to extremely elevated levels of the heavy metal neurotoxin.
"The Flint water crisis began in 2014 when the drinking water source for the city of Flint, Michigan was changed to the Flint River. Due to insufficient water treatment, over 100,000 residents were potentially exposed to high levels of lead in the drinking water. After a pair of scientific studies proved lead contamination was present in the water supply, a federal state of emergency was declared in January 2016 and Flint residents were instructed to use only bottled or filtered water for drinking, cooking, cleaning, and bathing. As of early 2017, the water quality had returned to acceptable levels; however, residents were instructed to continue to use bottled or filtered water until all the lead pipes have been replaced, which is expected to be completed no sooner than 2020."