No raw sewage from LOTT plant

February 9th, 2017 by Ken

Just a few years ago, the LOTT Plant on the Port of Olympia, would have faced the same problems facing some of the sewer facilities in King County.   They too would have been dumping untreated sewage into Puget Sound when major rain falls.

In 2007 and 2009, LOTT had to bypass the treatment plant and dump raw sewage into the bay.   In all of downtown Olympia, the storm water pipes are connected to the same system as the sanitary sewers.   When it rains, if fills up the treatment plant with storm water mixing with the sewage. This time around, they’ve been able to handle the increase rain and storm water.

In a normal day the LOTT plant handles 13 million gallons of sewage.   A normal winter’s day is 18 million.   In the last 24 hours the plant has handled 60 million gallons of storm and waste water.

According to Lisa Dennis Perez, the director of environment planning and communications,  there are several reasons the plant can handle the increased flow.  The primary sedimentation basin has been upgraded to handle up to 60 million gallons of storage, but they’ve also done a better job of planning for rainfall events.  “We have a procedure on how to prepare and we’ve identified locations within the plant where we can store the flow,” she said.  “We also have better weather forecasts so we can start planning earlier.”

But, Perez said, they’ve been fortunate.  “We haven’t had a long lasting storm.   We can store the water for a short period of time, but if we had a week long event, we might have to do something different.”

Posted in Government, The Real News


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