Project #4348

Matrix Effects on Cryptosporidium Oocyst Recovery

$406,815
Completed
Principal Investigator
Jennifer
Clancy
Research Manager
Ms. Jennifer I Warner
Contractor
Tetra Tech, Inc.
Microbes & Pathogens

Abstract

Through extensive statistical and laboratory analyses, this study found a set of likely causes of poor Cryptosporidium oocyst recovery in Portland Water Bureau source water from the Bull Run watershed at certain times of the year. The report presents a modification to EPA Method 1623 that improved oocyst recovery for Portland Water Bureau, and this research contributes to an improved understanding of the role that water matrices play in inhibiting oocyst recovery. Tailored collaboration partner: City of Portland Water Bureau. Published in 2014.