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In front of a near 1,000,000 gallon skimmer tank full of microscopic sewage consuming animal life, CH2MHill Operations Supervisor Paul Olson (far right) talks about the filtering process at the City of Walla Walla Waste Water Treatment Plant. Thursday, May 13, 2010

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Walla Walla wastewater goes down the drain, and then?

Walla Walla's wastewater treatment process takes about a day for any given flush, resulting in clean water to put back in Mill Creek.

WALLA WALLA -- Do you ever wonder what happens to the water in the toilet after you flush it? We often do not think about the people and the processes that work day in, day out to make the essential service of wastewater treatment possible.


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