A coliform count is the general indication of safety of drinking water supplies in an area, explains the New York Department of Health. It measures the levels of fecal bacteria and E. coli in a water supply, giving an in... More » Geography Bodies of Water

There can be coliform bacteria in well water when the well is defective. Drinking water should not contain any presence of coliform bacteria for safety reasons, explains the Vermont Department of Health. If coliform bact... More » Science Biology

One of the most common methods to remove coliform bacteria from a ground water supply is by disinfecting the water source. Shock chlorination gets rid of coliform as well as iron and sulfur bacteria that tend to affect t... More » Home & Garden Home Maintenance Plumbing
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While there is no definitive count of all the islands in the world, there are 443 islands in the world with a land area of 970 square miles or greater. There are at least 335 additional islands whose land area ranges fro... More » Geography Bodies of Water

Boat safety has a lot to do with understanding boat traffic protocol when at sea. The coloring and numbering which guide sailors through any waterway is mostly consistent with sailing the Intracoastal Waterway (ICW), sav... More » Geography Bodies of Water

The subtidal zone is the area below the low tide water line. The vast majority of this area is submerged most of the time, and it includes an array of habitats. Submerged aquatic vegetation beds and coral reefs reside in... More » Geography Bodies of Water

The area drained by a river is called the river basin or drainage basin. This is the region where the waters of the river and its tributaries collect before draining into the sea or a large lake at its mouth. More » Geography Bodies of Water