These requirements do not impose specific performance standards on organizations. The international scope of ISO 14001, coupled with differing national laws and enforcement policies, makes it impossible to establish acceptable parameters for air emissions, water discharges and other similar environmental impacts.
The longest river in the United States is the Missouri River. The Missouri River starts in Montana and covers 2,540 miles before flowing into the Mississippi River, the second longest river in the United States. The Missouri-Mississippi river system is the third longest river in the world. The longest undammed river in the contiguous USA is the Yellowstone River at 692 miles in length. The 10 longest rivers in the United Sates are: Missouri: 2,540 miles. Mississippi: 2,340 miles. Yukon: 1,980 miles.
Although it is the longest river in North America, it is only the ninth largest in terms of water discharged in the United States. The largest river in this category is the Mississippi, which has an average discharge of over 16,000 cubic meters per second. (almost 600,000 cubic feet per second).