The Minnesota Pollution Control Agency(Thanks to the great work of public utilities, treated drinking water from the Mississippi is safe and delicious!)
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The Mississippi River and its tributaries carry excessively high levels of nutrients that cause a biological dead zone to form at the river mouth in the Gulf of Mexico. This dead zone is referred to as hypoxia, which means very low oxygen in the water.
Many popular kinds of fish including bass, bream, crappie, freshwater drum, and small catfish (less that22 inches in length) are SAFE to eat. Farm-raised catfish are SAFE to eat.
The cleanest river in the United States is the Chattahoochee River. This river starts in the mountains of north Georgia and flows through the Atlanta metropolitan area. The Chattahoochee is one of the few rivers in the country that is still safe to swim in and fish in.
St. Paul — The Mississippi River remains a healthy, clean stream for much of the way down to about St. Cloud, the river's most pristine stretch on its 2,320-mile journey to the Gulf of Mexico.
The Mississippi River is one of the world's major river systems in size, habitat diversity and biological productivity. It is also one of the world's most important commercial waterways and one of North America's great migration routes for both birds and fishes.
The worst-ever dry period occurred in the late 1500s. However, the dry years of 2021 and 2022 exceeded the 1500's drought length. This means the last 22 years are the driest in 1,200 years.