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Alum a Temporary Solution for Toxic Algae
Acknowledging that treating polluted Waughop Lake with alum is only a Band-Aid solution, the Lakewood City Council on Monday nonetheless accepted a plan that recommended the treatment as a first step in killing toxic algae in the Fort Steilacoom Park lake.

Council members said the city now can’t afford the preferred solution to the lake’s problems, dredging. That solution could cost up to $15 million. Treating the lake with alum to temporarily eliminate phosphorus in the water that feeds toxic blue-green algae would cost roughly $250,000.

Waughop Lake advocates Tom McClellan and Don Russell have told the council the alum treatment will only buy a few years’ time. They say alum will trigger explosive growth of aquatic weeds in the lake, a problem that itself will require an extensive treatment regimen to control.


 
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Weed Harvesters Remove 3,707 Tons of Weeds - Around 3,707 tonnes of weeds have been cleared from the 910-acre Bellandur lake. In the past five days alone 737 tonnes have been removed by just two machines, according to an official release issued by the Bangalore Development Authority.


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