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Use of carboxylated microspheres to assess transport potential of Cryptosporidium parvum oocysts at the Russian River water supply facility, Sonoma County, California

January 1, 2007

Carboxylated microspheres were employed as surrogates to assess the transport potential of Cryptosporidium parvumoocysts during forced- and natural-gradient tests conducted in July and October 2004. The tests involved poorly-sorted, near-surface sediments where groundwater is pumped from an alluvial aquifer underlying the Russian River, Sonoma County, CA. In an off channel infiltration basin and within the river, a mixture (2-, 3-, and 5- μm diameters) of fluorescently-labeled carboxylated microspheres and bromide tracers were used in two injection and recovery tests to assess sediment removal efficiency for the microspheres. Bottom sediments varied considerably in their filtration efficiency for Cryptosporidium.

Citation Information

Publication Year 2007
Title Use of carboxylated microspheres to assess transport potential of Cryptosporidium parvum oocysts at the Russian River water supply facility, Sonoma County, California
DOI 10.1080/01490450701456867
Authors David W. Metge, Ronald W. Harvey, Robert Anders, Donald O. Rosenberry, Donald Seymour, Jay Jasperse
Publication Type Article
Publication Subtype Journal Article
Series Title Geomicrobiology Journal
Series Number
Index ID 70029997
Record Source USGS Publications Warehouse
USGS Organization California Water Science Center