Well water advisory forecast study sample collection door hanger
Well water advisory forecast study sample collection door hangerKewaunee Wisconsin well water advisory forecast study door hanger left after sample collection.
Joel P Stokdyk
Joel Stokdyk is a Research Biologist with the Laboratory for Infectious Disease and the Environment (LIDE) with the Upper Midwest Water Science Center.
RESEARCH SUMMARY
I study the occurrence, fate and transport, and health effects of pathogens in the environment at LIDE. My research includes analysis of viruses, bacteria, and protozoa to characterize pathogen occurrence combined with microbial source tracking to identify pathogen sources. Studies address public health and resource management aspects of groundwater and surface water by assessing the factors that contribute to contamination and by characterizing relationships among pathogens, microbial indicators, and human health risk. Projects include collaboration with public agencies and other researchers to study public and private well water, recreational water, drinking water, and other environmental matrices.
EXPERTISE
Analysis of human and agricultural zoonotic pathogens and microbial source tracking markers in environmental matrices
Quantitative polymerase chain reaction (qPCR) and associated lab quality control
Large-volume sampling techniques for analysis of viruses and bacteria in water
Enteric viral, bacterial, and protozoan pathogens in groundwater
Science and Products
Well Water Advisory Forecasts for northeast Wisconsin
The fractured bedrock of northeast Wisconsin is vulnerable to groundwater contamination because water and contaminants can move quickly. LIDE is launching a study to predict contamination of private wells in northeast WI using Runoff Risk Advisory Forecasts (RRAF). RRAF is an online tool that forecasts conditions conducive to surface runoff, and the long-term vision is to leverage its forecasts to...
Assessing the health risk from waterborne pathogens for public users recreating on future Iowa Water Trails recreation sites near Des Moines
Scientists at LIDE are collaborating with Polk County Conservation in central Iowa to estimate the health risk posed to recreators in the Des Moines River and tributaries. Samples collected over two years are tested for viral, bacterial, and protozoan pathogens, and health risk is estimated using quantitative microbial risk assessment (QMRA). Health risk will also be compared to microbial source...
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.
Evaluating the risks of airborne pathogens from manure irrigation
Manure irrigation, which is the application of liquid animal manure by irrigation, is increasing. However, the risk of airborne pathogen transmission from manure to humans during spray irrigation is not well-understood. To determine how pathogens can spread using manure irrigation, LIDE measured air concentrations and risk of illness due to exposure to pathogens in the irrigation spray.
Norovirus outbreak caused by a new septic system
Patrons and employees of a new restaurant were affected by acute gastroenteritis (vomiting and diarrhea); initial tests were positive for fecal contamination. Investigators utilized a unique combination of epidemiological, microbial, and hydrogeological evidence that identified a new septic system as the source of the contamination.
Groundwater viruses in Minnesota drinking water wells
In Minnesota, 74% of the State’s population relies on groundwater to supply their drinking water. Outbreaks of waterborne viral illness have been associated with groundwater, and surveys show that 30 percent of drinking water wells may be contaminated. LIDE is helping the State determine the occurrence of groundwater-borne viruses and the risk of illness in Minnesota groundwater.
About LIDE
The Laboratory for Infectious Disease and the Environment (LIDE) is an interagency collaborative effort between the U.S. Geological Survey and the U.S. Department of Agriculture-Agricultural Research Service. As a research laboratory, LIDE’s roles in research-based collaborations range from developing research questions and experimental designs to analyzing samples and interpreting data.
Well water advisory forecast study sample collection door hanger
Well water advisory forecast study sample collection door hanger
Well water advisory forecast study sample collection door hangerKewaunee Wisconsin well water advisory forecast study door hanger left after sample collection.
A winter landscape in Kewaunee County, Wisconsin
A wintery landscape of snow-covered grass and trees on a late morning in November in Kewaunee County in northeast Wisconsin.
A wintery landscape of snow-covered grass and trees on a late morning in November in Kewaunee County in northeast Wisconsin.
Collecting residential tap water sample in Kewaunee County, Wisconsin
Collecting residential tap water sample in Kewaunee County, WisconsinLaboratory for Infectious Disease and the Environment team member Joel Stokdyk collects residential private well water sample for the well water advisory forecast study in Kewaunee County, Wisconsin.
Collecting residential tap water sample in Kewaunee County, Wisconsin
Collecting residential tap water sample in Kewaunee County, WisconsinLaboratory for Infectious Disease and the Environment team member Joel Stokdyk collects residential private well water sample for the well water advisory forecast study in Kewaunee County, Wisconsin.
LIDE team members collecting private water well samples in Kewaunee County, Wisconsin
LIDE team members collecting private water well samples in Kewaunee County, WisconsinTeam members from the USGS Laboratory for Infectious Disease and the Environment (LIDE) collecting private well water samples on a chilly November day in Kewaunee County, Wisconsin. Pictured from left to right Joel Stokdyk (USGS), Rachel Cook (USDA), Aaron Firnstahl (USGS).
LIDE team members collecting private water well samples in Kewaunee County, Wisconsin
LIDE team members collecting private water well samples in Kewaunee County, WisconsinTeam members from the USGS Laboratory for Infectious Disease and the Environment (LIDE) collecting private well water samples on a chilly November day in Kewaunee County, Wisconsin. Pictured from left to right Joel Stokdyk (USGS), Rachel Cook (USDA), Aaron Firnstahl (USGS).
LIDE team members in front of field vehicle when traveling to collect private well water samples
LIDE team members in front of field vehicle when traveling to collect private well water samplesJoel Stokdyk (USGS) and Rachel Cook (USDA) from the USGS Laboratory for Infectious Disease and the Environment (LIDE) standing in front of field vehicle en route to collecting private well water samples on a chilly November day in Kewaunee County, Wisconsin.
LIDE team members in front of field vehicle when traveling to collect private well water samples
LIDE team members in front of field vehicle when traveling to collect private well water samplesJoel Stokdyk (USGS) and Rachel Cook (USDA) from the USGS Laboratory for Infectious Disease and the Environment (LIDE) standing in front of field vehicle en route to collecting private well water samples on a chilly November day in Kewaunee County, Wisconsin.
Science and Products
Well Water Advisory Forecasts for northeast Wisconsin
The fractured bedrock of northeast Wisconsin is vulnerable to groundwater contamination because water and contaminants can move quickly. LIDE is launching a study to predict contamination of private wells in northeast WI using Runoff Risk Advisory Forecasts (RRAF). RRAF is an online tool that forecasts conditions conducive to surface runoff, and the long-term vision is to leverage its forecasts to...
Assessing the health risk from waterborne pathogens for public users recreating on future Iowa Water Trails recreation sites near Des Moines
Scientists at LIDE are collaborating with Polk County Conservation in central Iowa to estimate the health risk posed to recreators in the Des Moines River and tributaries. Samples collected over two years are tested for viral, bacterial, and protozoan pathogens, and health risk is estimated using quantitative microbial risk assessment (QMRA). Health risk will also be compared to microbial source...
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.
Evaluating the risks of airborne pathogens from manure irrigation
Manure irrigation, which is the application of liquid animal manure by irrigation, is increasing. However, the risk of airborne pathogen transmission from manure to humans during spray irrigation is not well-understood. To determine how pathogens can spread using manure irrigation, LIDE measured air concentrations and risk of illness due to exposure to pathogens in the irrigation spray.
Norovirus outbreak caused by a new septic system
Patrons and employees of a new restaurant were affected by acute gastroenteritis (vomiting and diarrhea); initial tests were positive for fecal contamination. Investigators utilized a unique combination of epidemiological, microbial, and hydrogeological evidence that identified a new septic system as the source of the contamination.
Groundwater viruses in Minnesota drinking water wells
In Minnesota, 74% of the State’s population relies on groundwater to supply their drinking water. Outbreaks of waterborne viral illness have been associated with groundwater, and surveys show that 30 percent of drinking water wells may be contaminated. LIDE is helping the State determine the occurrence of groundwater-borne viruses and the risk of illness in Minnesota groundwater.
About LIDE
The Laboratory for Infectious Disease and the Environment (LIDE) is an interagency collaborative effort between the U.S. Geological Survey and the U.S. Department of Agriculture-Agricultural Research Service. As a research laboratory, LIDE’s roles in research-based collaborations range from developing research questions and experimental designs to analyzing samples and interpreting data.
Well water advisory forecast study sample collection door hanger
Well water advisory forecast study sample collection door hangerKewaunee Wisconsin well water advisory forecast study door hanger left after sample collection.
Well water advisory forecast study sample collection door hanger
Well water advisory forecast study sample collection door hangerKewaunee Wisconsin well water advisory forecast study door hanger left after sample collection.
A winter landscape in Kewaunee County, Wisconsin
A wintery landscape of snow-covered grass and trees on a late morning in November in Kewaunee County in northeast Wisconsin.
A wintery landscape of snow-covered grass and trees on a late morning in November in Kewaunee County in northeast Wisconsin.
Collecting residential tap water sample in Kewaunee County, Wisconsin
Collecting residential tap water sample in Kewaunee County, WisconsinLaboratory for Infectious Disease and the Environment team member Joel Stokdyk collects residential private well water sample for the well water advisory forecast study in Kewaunee County, Wisconsin.
Collecting residential tap water sample in Kewaunee County, Wisconsin
Collecting residential tap water sample in Kewaunee County, WisconsinLaboratory for Infectious Disease and the Environment team member Joel Stokdyk collects residential private well water sample for the well water advisory forecast study in Kewaunee County, Wisconsin.
LIDE team members collecting private water well samples in Kewaunee County, Wisconsin
LIDE team members collecting private water well samples in Kewaunee County, WisconsinTeam members from the USGS Laboratory for Infectious Disease and the Environment (LIDE) collecting private well water samples on a chilly November day in Kewaunee County, Wisconsin. Pictured from left to right Joel Stokdyk (USGS), Rachel Cook (USDA), Aaron Firnstahl (USGS).
LIDE team members collecting private water well samples in Kewaunee County, Wisconsin
LIDE team members collecting private water well samples in Kewaunee County, WisconsinTeam members from the USGS Laboratory for Infectious Disease and the Environment (LIDE) collecting private well water samples on a chilly November day in Kewaunee County, Wisconsin. Pictured from left to right Joel Stokdyk (USGS), Rachel Cook (USDA), Aaron Firnstahl (USGS).
LIDE team members in front of field vehicle when traveling to collect private well water samples
LIDE team members in front of field vehicle when traveling to collect private well water samplesJoel Stokdyk (USGS) and Rachel Cook (USDA) from the USGS Laboratory for Infectious Disease and the Environment (LIDE) standing in front of field vehicle en route to collecting private well water samples on a chilly November day in Kewaunee County, Wisconsin.
LIDE team members in front of field vehicle when traveling to collect private well water samples
LIDE team members in front of field vehicle when traveling to collect private well water samplesJoel Stokdyk (USGS) and Rachel Cook (USDA) from the USGS Laboratory for Infectious Disease and the Environment (LIDE) standing in front of field vehicle en route to collecting private well water samples on a chilly November day in Kewaunee County, Wisconsin.