What proportion of the Earth's surface water is freshwater found in streams, lakes, wetlands, and ground-water reservoirs?

70 percent of the earth is water and only about 2.5 percent is fresh water even then only 1 percent is accessible by humans.

68% is found in icecaps and glaciers

30% is ground water

0.3% is found in lakes and rivers

99% of the earths water is unsuitable for drinking purposes.

93 % is salt water 3%is ground water 2% is lakes 1% streams and 1% is wetlands