Carrie Givens is the Environmental Microbiology Team Lead at the United States Geological Survey Upper Midwest Water Science Center. She is a Microbiologist with the Michigan Bacteriological Research Laboratory (Lansing, MI).
Carrie Givens is the Environmental Microbiology Team Lead at the United States Geological Survey Upper Midwest Water Science Center. She leads and collaborates on research exploring bacterial pathogens and antibiotic resistance in the environment, microbial communities associated with harmful algal blooms, and the influence of the environment and chemical contaminants on the host microbiome. She has a B.S. in Biology from the University of South Carolina Honors College and a Ph.D. in Marine Science from the University of Georgia.
Professional Experience
U.S. Geological Survey, 03/2014-present
Upper Midwest Water Science Center, Lansing, MI 48911
Microbiologist, Lead for Environmental Microbiology Team
U.S. Fish and Wildlife Service, 02/2013-02/2014
Fish and Aquatic Conservation, Arlington, VA 22203
Fish and Wildlife Biologist - Knauss Sea Grant FellowUniversity of Georgia, 08/2007-12/2012
Department of Marine Sciences, Athens, GA 30602Advisor: Dr. James T. Hollibaugh
Graduate Research AssistantDissertation: A Fish Tale: Comparison of the Gut Microbiome of 15 Fish Species and the Influence of Diet and Temperature on its Composition
U.S. Food and Drug Administration, 03/2011-05/2011
Gulf Coast Seafood Laboratory, Dauphin Island, AL 36528
Public Health Oceans & Human Health InternProject Focus: Investigation of the fish intestine and sediment as potential reservoirs of Vibrio vulnificus and Vibrio parahaemolyticus
National Oceanic and Atmospheric Administration, 06/2010-08/2010
Hollings Marine Laboratory, Charleston, SC 29412
NOAA Oceans & Human Health InternProject Focus: Comparison of the microbial communities associated wi
Undergraduate Researcher - Senior Honors Thesis, 10/2006-05/2007
University of South Carolina Honors College, Columbia, SC 29201
Thesis Director: Dr. Rudolph E Mancke
Second Reader: Dr. Thomas J. Hilbish
Comparison of the ancestral armadillo fossil record with the current species distribution of the nine-banded armadillo (Dasypus novemcinctus) in the Southeastern United States
Environmental Intern, 05/2005-08/2005
Santee Cooper Power, Moncks Corner, SC 29461
Undergraduate Researcher - Honors Independent Study, 01/2005-05/2005
University of South Carolina Honors College, Columbia, SC 29201
The Care and Use of Small Animals in Education at Riverbanks Zoo
Education and Certifications
Ph.D. in Marine Science, 08/2007-12/2012, University of Georgia (UGA), Athens, GA
B.S. in Biology with minor in Marine Science with Honors, 08/2003-05/2007, University of South Carolina Honors College, Columbia, SC
International Student, 02/2006-07/2006, University of Waikato, Hamilton, New Zealand
Affiliations and Memberships*
Member, Bioscience Advisory Committee for Wilson Talent Center (Lansing, MI)
Honors and Awards
Dean John A. Knauss Marine Policy Fellowship, 2013
Pre-Doctoral Fellowship, NOAA Oceans & Human Health Initiative, 2008-2011
Science and Products
Collaborative Science Provides Understanding of Contaminants in Bottled Water-an Increasingly Common Alternate Drinking Water Source
Costs and Benefits of Nitrapyrin
Southwest Wisconsin Groundwater and Geology (SWIGG) study
Bacterial Pathogens
Enhance Great Lakes Beach Recreational Water Quality Decision Making
Antibiotic Resistance
Microbial Source Tracking
Microbiological Water Quality
Microbial Ecology
Michigan Bacteriological Research Laboratory (MI-BaRL)
Bacteriological Research — Lansing, Michigan
Ohio Microbiology Program - Home
Nutrients, estrogenicity, and fecal indicators in surface water collected from wetlands in the Klamath Marsh National Wildlife Refuge, Oregon, 2017-2018
Juxtaposition of intensive agriculture, vulnerable aquifers, and mixed chemical/microbial exposures in private-well tapwater in northeast Iowa
Wild bee exposure to pesticides in conservation grasslands increases along an agricultural gradient: A tale of two sample types
Bottled water contaminant exposures and potential human effects
Food, beverage, and feedstock processing facility wastewater: A unique and underappreciated source of contaminants to U.S. streams
Pilot-scale expanded assessment of inorganic and organic tapwater exposures and predicted effects in Puerto Rico, USA
Public and private tapwater: Comparative analysis of contaminant exposure and potential risk, Cape Cod, Massachusetts, USA
Monitoring wetland water quality related to livestock grazing in amphibian habitats
Widespread use of the nitrification inhibitor nitrapyrin: Assessing benefits and costs to agriculture, ecosystems, and environmental health
Poultry litter as potential source of pathogens and other contaminants in groundwater and surface water proximal to large-scale confined poultry feeding operations
Mixed organic and inorganic tapwater exposures and potential effects in greater Chicago area, USA
Reconnaissance of mixed organic and inorganic chemicals in private and public supply tapwaters at selected residential and workplace sites in the United States
Safe drinking water at the point-of-use (tapwater, TW) is a United States public health priority. Multiple lines of evidence were used to evaluate potential human health concerns of 482 organics and 19 inorganics in TW from 13 (7 public supply, 6 private well self-supply) home and 12 (public supply) workplace locations in 11 states. Only uranium (61.9 μg L–1, private well) exceeded a National Prim
Methods used for the collection and analysis of chemical and biological data for the Tapwater Exposure Study, United States, 2016–17
Science and Products
- Science
Filter Total Items: 15
Collaborative Science Provides Understanding of Contaminants in Bottled Water-an Increasingly Common Alternate Drinking Water Source
U.S. Geological Survey researchers and public health experts collaborated to determine what contaminants occur in bottled water, which is an increasingly common alternate drinking water source, to broaden their understanding of human exposure to contaminants in drinking water supply chains. Bottled water, like public-supply and private-well tap water supply chains, contained multiple organic...Costs and Benefits of Nitrapyrin
In December 2020, our research group (as part of the Food Integrated Science Team) published a review of nitrapyrin costs and benefits in the journal Environmental Science & Technology.Southwest Wisconsin Groundwater and Geology (SWIGG) study
The fractured bedrock aquifers of southwest Wisconsin are often overlain by shallow soils, so private wells are potentially vulnerable to contamination by nitrate and pathogens from the land surface. The goal of this study is to evaluate the extent and causes of private well water contamination in three southwest Wisconsin counties.Bacterial Pathogens
The U.S. Geological Survey (USGS) Michigan Bacteriological Research Laboratory (MI-BaRL) studies the source, occurrence, and distribution of the bacterial pathogens Shiga-toxin producing E. coli (STEC), Salmonella, Shigella, Campylobacter, Enterococcus, and Staphylococcus and the relation of occurrence of pathogens with fecal indicator bacteria, land-use, season, hydrology, geology, weather...Enhance Great Lakes Beach Recreational Water Quality Decision Making
Important questions about beach closures and management remain unanswered in the Great Lakes where over 500 beaches are routinely used along the nearly 11,000 miles of coastline. The economies of coastal areas are dependent on public confidence in the quality of water at the shoreline, and beach managers need reliable science-based information to make beach closure and beach management decisions...Antibiotic Resistance
The U.S. Geological Survey (USGS) Michigan Bacteriological Research Laboratory (MI-BaRL) conducts research on antibiotic-resistant bacteria and their genes. We have concentrated our studies on antibiotic-resistant bacteria of human-health concern, including vancomycin-resistant enterococci, methicillin-resistant Staphylococcus aureus (MRSA), and Klebsiella and E. coli resistant to third-generation...Microbial Source Tracking
It is often important to understand the source of fecal indicator bacteria, pathogens, or chemicals that impair the normal use of water. Antibiotic-resistant bacteria and their genes, specific bacterial pathogens (such as E. coli O157:H7 which is primarily associated with cattle), and host-associated bacterial genes (such as human or animal specific Bacteroides genes), can be used to evaluate the...Microbiological Water Quality
Recreational water and industrial discharges are regulated by other federal and state agencies across the country. The U.S. Geological Survey (USGS) Michigan Bacteriological Research Laboratory (MI-BaRL) conducts studies to understand the fate and transport of fecal indicator bacteria in surface and groundwater to aid state and federal partners. A variety of standardized protocols are used to...Microbial Ecology
The U.S. Geological Survey (USGS) Michigan Bacteriological Research Laboratory (MI-BaRL) conducts ecological studies on the structure and function of eubacterial and archeal communities in the environment. Studies of this type give us basic information about the composition and functionality of different microbial communities and allow us to investigate the effects that natural and anthropogenic...Michigan Bacteriological Research Laboratory (MI-BaRL)
The U.S. Geological Survey (USGS) Michigan Bacteriological Research Laboratory (MI-BaRL) is a newly renovated laboratory space operated by the USGS Michigan Water Science Center in Lansing, MI. The laboratory is staffed by two Ph.D. level microbiologists and five M.S. level microbiologists with a combined 70 years of experience in microbiology and water resources research. The USGS MI-BaRL...Bacteriological Research — Lansing, Michigan
About the ResearchThe Environmental Health Program collaborates with microbiologists at the Michigan Bacteriological Research Laboratory (MI-BaRL). A wide array of traditional and modern molecular approaches are used to evaluate microbial pathogens and antimicrobial resistance pathways in the environment. The scientists use these approaches to advance the understanding of how environmental...Ohio Microbiology Program - Home
The U.S. Geological Survey MI-OH Water Science Center Microbiology Laboratories in Lansing, Michigan and Columbus, Ohio address water-related public-health concerns across the Nation using traditional and cutting-edge analytical approaches. The laboratories work with government agencies, academic institution, and regional and local partners to study the processes and anthropogenic influences that... - Data
Nutrients, estrogenicity, and fecal indicators in surface water collected from wetlands in the Klamath Marsh National Wildlife Refuge, Oregon, 2017-2018
The data was gathered to determine the effects of cattle grazing on wetland water quality in the Klamath National Wildlife Refuge in Oregon. Surface water samples from sites representing a range of grazing histories were collected between June and October in 2017 and 2018. Samples were analyzed for nutrients (ammonia, nitrate plus nitrite, nitrite and orthophosphate), total coliforms, E. coli, ent - Multimedia
- Publications
Filter Total Items: 15
Juxtaposition of intensive agriculture, vulnerable aquifers, and mixed chemical/microbial exposures in private-well tapwater in northeast Iowa
In the United States and globally, contaminant exposure in unregulated private-well point-of-use tapwater (TW) is a recognized public-health data gap and an obstacle to both risk-management and homeowner decision making. To help address the lack of data on broad contaminant exposures in private-well TW from hydrologically-vulnerable (alluvial, karst) aquifers in agriculturally-intensive landscapesWild bee exposure to pesticides in conservation grasslands increases along an agricultural gradient: A tale of two sample types
Conservation efforts have been implemented in agroecosystems to enhance pollinator diversity by creating grassland habitat, but little is known about the exposure of bees to pesticides while foraging in these grassland fields. Pesticide exposure was assessed in 24 conservation grassland fields along an agricultural gradient at two time points (July and August) using silicone band passive samplersBottled water contaminant exposures and potential human effects
Bottled water (BW) consumption in the United States and globally has increased amidst heightened concern about environmental contaminant exposures and health risks in drinking water supplies, despite a paucity of directly comparable, environmentally-relevant contaminant exposure data for BW. This study provides insight into exposures and cumulative risks to human health from inorganic/organic/micrFood, beverage, and feedstock processing facility wastewater: A unique and underappreciated source of contaminants to U.S. streams
Process wastewaters from food, beverage, and feedstock facilities, although regulated, are an under-investigated environmental contaminant source. Food process wastewaters (FPWWs) from 23 facilities in 17 U.S. states were sampled and documented for a plethora of chemical and microbial contaminants. Of the 576 analyzed organics, 184 (32%) were detected at least once, with concentrations as large asByEcosystems Mission Area, Water Resources Mission Area, Contaminant Biology, Environmental Health Program, Toxic Substances Hydrology, Central Midwest Water Science Center, Kansas Water Science Center, New Jersey Water Science Center, Pennsylvania Water Science Center, South Atlantic Water Science Center (SAWSC), Upper Midwest Water Science Center, National Water Quality LaboratoryPilot-scale expanded assessment of inorganic and organic tapwater exposures and predicted effects in Puerto Rico, USA
A pilot-scale expanded target assessment of mixtures of inorganic and organic contaminants in point-of-consumption drinking water (tapwater, TW) was conducted in Puerto Rico (PR) to continue to inform TW exposures and corresponding estimations of cumulative human-health risks across the US. In August 2018, a spatial synoptic pilot assessment of than 524 organic, 37 inorganic, and select microbioloPublic and private tapwater: Comparative analysis of contaminant exposure and potential risk, Cape Cod, Massachusetts, USA
BackgroundHumans are primary drivers of environmental contamination worldwide, including in drinking-water resources. In the United States (US), federal and state agencies regulate and monitor public-supply drinking water while private-supply monitoring is rare; the current lack of directly comparable information on contaminant-mixture exposures and risks between private- and public-supplies underByEcosystems Mission Area, Water Resources Mission Area, Contaminant Biology, Environmental Health Program, Toxic Substances Hydrology, California Water Science Center, Eastern Ecological Science Center, New England Water Science Center, New Jersey Water Science Center, South Atlantic Water Science Center (SAWSC), Upper Midwest Water Science Center, National Water Quality LaboratoryMonitoring wetland water quality related to livestock grazing in amphibian habitats
Land use alteration such as livestock grazing can affect water quality in habitats of at-risk wildlife species. Data from managed wetlands are needed to understand levels of exposure for aquatic life stages and monitor grazing-related changes afield. We quantified spatial and temporal variation in water quality in wetlands occupied by threatened Oregon spotted frog (Rana pretiosa) at Klamath MarshByEcosystems Mission Area, Water Resources Mission Area, Eastern Ecological Science Center, Forest and Rangeland Ecosystem Science Center, Michigan-Ohio Water Science Center, New Jersey Water Science Center, Oregon Water Science Center, Upper Midwest Environmental Sciences Center, Upper Midwest Water Science CenterWidespread use of the nitrification inhibitor nitrapyrin: Assessing benefits and costs to agriculture, ecosystems, and environmental health
Agricultural production and associated applications of nitrogen (N) fertilizers have increased dramatically in the last century, and current projections to 2050 show that demands will continue to increase as the human population grows. Applied in both organic and inorganic fertilizer forms, N is an essential nutrient in crop productivity. Increased fertilizer applications, however, create the potePoultry litter as potential source of pathogens and other contaminants in groundwater and surface water proximal to large-scale confined poultry feeding operations
Manure from livestock production has been associated with the contamination of water resources. To date, research has primarily focused on runoff of these contaminants from animal operations into surface water, and the introduction of poultry-derived pathogenic zoonoses and other contaminants into groundwater is under-investigated. We characterized pathogens and other microbial and chemical contamMixed organic and inorganic tapwater exposures and potential effects in greater Chicago area, USA
Safe drinking water at the point of use (tapwater, TW) is a public-health priority. TW exposures and potential human-health concerns of 540 organics and 35 inorganics were assessed in 45 Chicago area United States (US) homes in 2017. No US Environmental Protection Agency (EPA) enforceable Maximum Contaminant Level(s) (MCL) were exceeded in any residential or water treatment plant (WTP) pre-distribReconnaissance of mixed organic and inorganic chemicals in private and public supply tapwaters at selected residential and workplace sites in the United States
Safe drinking water at the point-of-use (tapwater, TW) is a United States public health priority. Multiple lines of evidence were used to evaluate potential human health concerns of 482 organics and 19 inorganics in TW from 13 (7 public supply, 6 private well self-supply) home and 12 (public supply) workplace locations in 11 states. Only uranium (61.9 μg L–1, private well) exceeded a National Prim
ByEcosystems Mission Area, Water Resources Mission Area, Contaminant Biology, Environmental Health Program, Toxic Substances Hydrology, California Water Science Center, Central Midwest Water Science Center, Colorado Water Science Center, Eastern Ecological Science Center, Kansas Water Science Center, Michigan-Ohio Water Science Center, New Jersey Water Science Center, Oregon Water Science Center, South Atlantic Water Science Center (SAWSC), St. Petersburg Coastal and Marine Science Center, Upper Midwest Environmental Sciences Center, Upper Midwest Water Science Center, National Water Quality LaboratoryMethods used for the collection and analysis of chemical and biological data for the Tapwater Exposure Study, United States, 2016–17
In 2016, the U.S. Geological Survey (USGS) Environmental Health Mission Area, initiated the Tapwater Exposure Study as part of an infrastructure project to assess human exposure to potential threats from complex mixtures of contaminants. In the pilot phase (2016), samples were collected from 11 States throughout the United States, and in the second phase (2017), the study focused on the Greater Ch
*Disclaimer: Listing outside positions with professional scientific organizations on this Staff Profile are for informational purposes only and do not constitute an endorsement of those professional scientific organizations or their activities by the USGS, Department of the Interior, or U.S. Government