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Chemical Treatment Kills Thousands of Fish in Hartwell Lake
About 5,000 fish have died because of algaecides applied to Hartwell Lake in an effort to improve the region’s drinking water. The South Carolina Department of Natural Resources and the state’s public-health agency are investigating the fish kill, which affects the area around the Anderson Joint Regional Water System’s intake on the lake.

160 acres of the lake was treated with algaecides to try to improve the taste and smell of customers’ drinking water. The Copper and hydrogen peroxide based algaecide was applied in granular form and in concentrations low enough not to harm fish or people.

The algaecide was applied in accordance with regulations approved by the U.S. Environmental Protection Agency. Officials believe it “is likely a one-time event” and that the water is “safe for human and wildlife exposure.” Although, a spokesman for the Army Corps of Engineers were not surprised by the fish kill. “Small Fish are susceptible to dying when they come in contact with algaecides.”

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Verona New Jersey to go Phosphate-Free? - Phosphates enter waterways from human and animal waste, phosphorus rich bedrock, laundry, cleaning, industrial effluents, and fertilizer runoff. These phosphates become detrimental when they over fertilize aquatic plants and cause stepped up eutrophication. If too much phosphate is present in the water the algae and weeds will grow rapidly, may choke the waterway, and use up large amounts of precious oxygen (in the absence of photosynthesis and as the algae and plants die and are consumed by aerobic bacteria.) The result may be the death of many fish and aquatic organisms.


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