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Efficiency in the Bag

by Michael Thalhamer, P.E., Principal; Psomas and Associate, Sacramento, CA,
Elizabeth Dawson, Design Engr.; Psomas and Assoc., Sacramento, CA,


Serial Information: Civil Engineering—ASCE, 1998, Vol. 68, Issue 9, Pg. 56-58


Document Type: Feature article

Abstract:

Heavy snowfalls made the existing water treatment plant at the Lassen Volcanic National Park in northern California inaccessible during winter months. As activity in the park during colder months has increased, visitors have requested access to potable water. So the National Park Service decided to construct a smaller, simpler treatment facility that could operate during the winter. Engineers chose a bag filtration system that would minimize environmental impact on the park and have a low annual maintenance cost of approximately $800. The bag filtration system would also comply with the EPA standards for healthy drinking water. A 10,000 gallon tank will be used to supply the 4,000 gallon-per-day demand. The new plant will go into service for the 1998-99 winter season.

Subject Headings: Winter | Water treatment plants | Parks | Filtration | Drinking water | Water conservation | Volcanoes

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