A lake can be supplied in many way commonly from rivers, rainwater runoff, ice and snow melt and aquifers. In some cases a lake can be feed by underground spring, forming blue water lakes. In the...
what is in lake water?
a lot of things are in lake water. you probably will never want to swim in it again once you hear this.
human wastes
fish
dirt
more sewage
bacteria and germs upon the...