All of life requires water, it's something we take for granted, but shouldn't. Dirty water in our lakes, streams and headwaters remains a constant threat and we must work to ensure that kind of pollution doesn't harm our children and loved ones.
The Bible recognizes how profound our need for water is by using it to illustrate the most important thing we need to know about God: His steadfast love (Ps. 137:1, 37). And clean water is used by Christians to perform one of our most important sacraments: baptism, which symbolizes the cleansing of our sins. No one would want a child to be baptized in dirty water.