After many years of using copper sulfate to treat the blue-green algae on Lake Hennessey, the city of Napa is considering using an alternative herbicide called PAK 27. Allan Buckmann, a biologist with ...
7 lakes in the area have seen blue-green algae blooms in 2015 Main causes are phosphorus pollution, high temperatures and a lack of natural water flow Expert: Pumping septic tanks every 3-5 years can ...
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