USGS - science for a changing world

USGS Professional Pages

Blank space
Search USGS Professionals Featured Profiles Blank space Frequently Asked Questions  |  About The USGS Professional Pages
bio image of Ronald  Harvey

Ronald Harvey

Research Hydrologist

Contact Info


Short Biography

Ronald Harvey earned his PhD in Environmental Sciences from Stanford in 1981.  Following an NRC postdoctoral fellowship, he conducted research for USGS National Research Program in Menlo Park, CA (1982-1990) and in Boulder, CO (1991-present).  From 2002 to 2005 he served as the first president of the International Society for Subsurface Microbiology (ISSM).  He is a former chair of the Environmental (Q) Division of the American Society for Microbiology and is an adjunct professor in Environmental Engineering at the Univ. Colorado. His research focuses on subsurface microbial transport and ecology.  He has authored/co-authored over 100 papers in his field.  Field studies involve microbial transport and ecology of granular, fractured-rock, and karst-limestone aquifers throughout the country.
 



Read Full Professional Summary

Download CV

Publications

1 [Link]

1 [Link]

1 [Link]

1 [Link]

1 [Link]

1 [Link]

1 [Link]

1 [Link]

1 [Link]

1 [Link]

1 [Link]

1 [Link]

1 [Link]

1 [Link]

1 [Link]




Prior journal publications for RW Harvey may be found on Academia.edu (http://usgs.academia.edu/RonaldHarvey) or on Research Gate (https://www.researchgate.net/profile/Ronald_Harvey/publications)




                           

My Science Topics


Science Topic
Subtopic
Ecology and Environmentaquatic ecosystems
Ecology and Environmentestuarine ecosystems
Ecology and Environmentfreshwater ecosystems
Water Resourcesground-water quality
Environmental Issuescontamination and pollution
Environmental Issuesground-water quality
Environmental Issueshealth and disease
Environmental Issueshuman impacts
Environmental Issueswater quality


Subsurface Microbial Transport

Much of my project’s recent research has focused on subsurface transport of microorganisms because of its importance in the fate of groundwater contaminants and because transport of pathogens to water-supply wells has, for the last few decades, accounted for over half of the waterborne disease outbreaks in the US.  Recent interdisciplinary, collaborative research has resulted in new information on the roles of mineralogy, chemotaxis, and physical/geochemical heterogeneities in the subsurface fate and transport of microorganisms in fractured-rock, karst-limestone, and granular aquifers.  In particular, the importance of ecosystem-level controls (e.g., environmental carrying capacity, growth, and predation) has yielded important information about processes that were not previously considered in bacterial transport models.  The use of dual-radiolabeled viruses (32P-labeled genome, 35S-labeled protein capsid) in aquifer injection-and-recovery tests, coupled with more mechanistic laboratory studies, resulted in new information about the nature of natural disinfection for viruses in aquifers, including the relative importance of capsid disintegration versus the simple loss of host specificity.  Field and laboratory research involving transport of the protozoan pathogen Cryptosporidium parvum in Biscayne Aquifer limestone demonstrated the inadequacy of current time-of-travel protection zones for Florida’s largest municipal well field.  This work is impacting land use decisions in South Florida and the decision for major upgrades for Miami water-treatment facilities.  The most recent microbial transport research has involved transport of Cryptosporidium parvum oocysts in riverbank filtration settings, where because of its environmental persistence, low infective-dose rate, and resistance to chlorination, it is the major pathogen of concern. 


Contact Information

Ronald Harvey
3215 MARINE ST, BLDG 6, Suite E-127
Boulder, CO 80309
rwharvey@usgs.gov
303-541-3034
303-541-3084 - Fax
Back to top

Accessibility FOIA Privacy Policies and Notices

Take Pride in America logo USA.gov logo U.S. Department of the Interior | U.S. Geological Survey
URL: http://profile.usgs.gov/professional/mypage.php
Page Contact Information:Ask USGS
Page Last Modified: January 24 2013 17:21:51.
Version: 2.6