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Gallery: Lake Auburn’s vulnerable filtration waiver at center of watershed debates

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    Gallery: Lake Auburn’s vulnerable filtration waiver at center of watershed debates - Andree Kehn/Sun Journal | of | Share this photo

    A fecal coliform test sample from the Townsend Brook Road tributary shows a small level of contamination. Levels are fecal coliform are expected in small tributaries connected to Lake Auburn. Any spikes in these levels would trigger an investigation.

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    Gallery: Lake Auburn’s vulnerable filtration waiver at center of watershed debates - Andree Kehn/Sun Journal | of | Share this photo

    Ultraviolet light reactors sterilize water at the Lake Auburn water treatment plant in Auburn. Water runs through the reactor, which contain ultraviolet light bulbs in quartz sleeves.

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    Gallery: Lake Auburn’s vulnerable filtration waiver at center of watershed debates - Andree Kehn/Sun Journal | of | Share this photo

    The Raw Water Building sits on the banks of Lake Auburn. Water is tested for turbidity, or clarity, before being pumped up to the Lake Auburn water treatment facility.

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    Gallery: Lake Auburn’s vulnerable filtration waiver at center of watershed debates - Andree Kehn/Sun Journal | of | Share this photo

    Water is pumped from the Raw Water Building up to the water treatment facility after being tested for particulate matter.

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    Gallery: Lake Auburn’s vulnerable filtration waiver at center of watershed debates - Andree Kehn/Sun Journal | of | Share this photo

    The Lake Auburn water treatment facility is located on the shore of Lake Auburn and helps provide water for Lewiston and Auburn.

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    Gallery: Lake Auburn’s vulnerable filtration waiver at center of watershed debates - Andree Kehn/Sun Journal | of | Share this photo

    Turbidity analyzers in the water treatment facility for Lewiston and Auburn test water coming out of Lake Auburn. The higher the concentration of suspended solids in the water is, the dirtier it looks and the higher the turbidity. Levels must remain below 5 NTU in order for the community to maintain its waiver which allows the lake water to be treated without being filtered.

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    Gallery: Lake Auburn’s vulnerable filtration waiver at center of watershed debates - Andree Kehn/Sun Journal | of | Share this photo

    Turbidity analyzers in the water treatment facility for Lewiston and Auburn test water coming out of Lake Auburn. The higher the concentration of suspended solids in the water is, the dirtier it looks and the higher the turbidity. Levels must remain below 5 NTU in order for the community to maintain its waiver which allows the lake water to be treated without being filtered.

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    Gallery: Lake Auburn’s vulnerable filtration waiver at center of watershed debates - Andree Kehn/Sun Journal | of | Share this photo

    Turbidity analyzers in the water treatment facility for Lewiston and Auburn test water coming out of Lake Auburn. The higher the concentration of suspended solids in the water is, the dirtier it looks and the higher the turbidity. Levels must remain below 5 NTU in order for the community to maintain its waiver which allows the lake water to be treated without being filtered.

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