Why does Lake Superior have the best water quality index?
Lake Superior is a vast fresh water resource that has not experienced the same levels of development, urbanization and pollution as the other Great Lakes.
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Lake Superior's forested watershed and coastal wetlands help maintain water quality and a healthy aquatic ecosystem. Based on the assessments of the nine State of the Great Lakes indicators, the overall status of the Lake Superior basin ecosystem is Good and the trend is Unchanging.
Lake Superior has been described as the most oligotrophic lake in the world because it's so nutrient poor. It still has plenty of nutrients to support the plants and animals that live in it though. This lack of nutrients keeps the water as clear as you see it here.
Lake Superior is the Cleanest and Clearest Great LakeSuperior also doesn't have any major cities resting on its banks, unlike Lake Michigan, which has Chicago, and Huron and Erie, which are connected by the Detroit River.
Do you drink the lake water? Lake Superior is the cleanest of the Great Lakes, and many people drink the water regularly (even in their homes). On trip, the decision is yours. For your safety we bring a high quality water filter or boil our water.
As for pollution, Lake Superior is the cleanest of the five Great Lakes. The lake's massive size helps dilute any pollutants that enter the water. Plus, it has fewer farms along its shores, reducing pollution. However, even though the lake is doing great, it could be doing better.
The final hardness and alkalinity are about the same in the treated water as for the raw water pumped from Lake Superior at 46 ppm which is indicative of a very soft water (L.
Lake Superior freezes at least in part every year and less frequently in its entirety. The last year that it froze completely was in February 1994. It almost froze completely in March 2003 and this photograph was taken by the GOES satellite on March 7, 2003.
There have been about 350 shipwrecks recorded in Lake Superior and Lake Superior is known to never give up her dead. Over 10,000 lives have been lost in her waters.
What would happen if Lake Superior dried up? Without Lake Superior, areas near the lake would see far less snow each winter, and the distribution of snow in the central and eastern regions around the lake would be far different. The effects would not be limited to snow.
“With a southwesterly wind along the North Shore, for example, water moves easterly away from the coast, and deeper water rises to replace it. In Lake Superior, deeper water stays around 40°F year round, and when that mixes in, surface water temperatures can drop quickly.”
As the summer camping season peaks, the surface temperatures of Lake Superior gradually go from freezing, to tolerable, to relaxing. Our Daily Dips in August at Agawa Bay are by far the warmest and most comfortable since the surface water maxes out at about 20°C (68°F).