Author:
Publisher:
ISBN:
Category : Bacterial pollution of water
Languages : en
Pages : 196
Book Description
Like many other waterbodies in the United States, Johnson Creek, a tributary of the Lower Willamette River is water quality limited for bacteria. Escherichia coli (E. coli), a member of the fecal coliform bacteria group, has been found to have a high association with human pathogens and the occurrences of gastrointestinal illnesses in waters used for contact recreation; E. coli is commonly used as an indicator of fecal contamination. In the State of Oregon water contact recreational standards for fecal exposure is assessed by measuring in stream levels of E. coli. Because Johnson Creek is water quality limited for bacteria the Oregon Department of Environmental Quality (ODEQ) developed a Total Maximum Daily Load (TMDL) document to address the re-attainment of water quality standards. ODEQ designated management agencies (DMAs) within the Johnson Creek Watershed to adopt best management practices (BMPs) to meet required bacterial loading conditions called for by the TMDL. In this study the status and trends of E. coli over the last two decades were assessed (1996-2016) by analyzing loading conditions for different flow regimes before and after implementation of the TMDL. In addition, management actions utilized by DMAs within the watershed were observed, the effectiveness of structural BMPs were assessed, and recommendations were made to better evaluate progress towards meeting the TMDL. Four sampling sites were selected in this study to evaluate bacterial water quality within the watershed. The study sites spanned from the upper watershed near where Johnson Creek enters the City of Gresham to the mouth of the watershed in the City of Milwaukie. Two of the four study sites, located in subwatersheds dominated by urban development, showed progress towards meeting water quality standards, while the other two sites, which were in subwatersheds where rural and agricultural land use predominated, did not show progress. The strength of the conclusions in this study were hampered by inconsistent temporal spacing and sparse data which rendered trend and loading analyses largely un-interpretable.
Johnson Creek Bacteria TMDL Implementation
Author:
Publisher:
ISBN:
Category : Bacterial pollution of water
Languages : en
Pages : 196
Book Description
Like many other waterbodies in the United States, Johnson Creek, a tributary of the Lower Willamette River is water quality limited for bacteria. Escherichia coli (E. coli), a member of the fecal coliform bacteria group, has been found to have a high association with human pathogens and the occurrences of gastrointestinal illnesses in waters used for contact recreation; E. coli is commonly used as an indicator of fecal contamination. In the State of Oregon water contact recreational standards for fecal exposure is assessed by measuring in stream levels of E. coli. Because Johnson Creek is water quality limited for bacteria the Oregon Department of Environmental Quality (ODEQ) developed a Total Maximum Daily Load (TMDL) document to address the re-attainment of water quality standards. ODEQ designated management agencies (DMAs) within the Johnson Creek Watershed to adopt best management practices (BMPs) to meet required bacterial loading conditions called for by the TMDL. In this study the status and trends of E. coli over the last two decades were assessed (1996-2016) by analyzing loading conditions for different flow regimes before and after implementation of the TMDL. In addition, management actions utilized by DMAs within the watershed were observed, the effectiveness of structural BMPs were assessed, and recommendations were made to better evaluate progress towards meeting the TMDL. Four sampling sites were selected in this study to evaluate bacterial water quality within the watershed. The study sites spanned from the upper watershed near where Johnson Creek enters the City of Gresham to the mouth of the watershed in the City of Milwaukie. Two of the four study sites, located in subwatersheds dominated by urban development, showed progress towards meeting water quality standards, while the other two sites, which were in subwatersheds where rural and agricultural land use predominated, did not show progress. The strength of the conclusions in this study were hampered by inconsistent temporal spacing and sparse data which rendered trend and loading analyses largely un-interpretable.
Publisher:
ISBN:
Category : Bacterial pollution of water
Languages : en
Pages : 196
Book Description
Like many other waterbodies in the United States, Johnson Creek, a tributary of the Lower Willamette River is water quality limited for bacteria. Escherichia coli (E. coli), a member of the fecal coliform bacteria group, has been found to have a high association with human pathogens and the occurrences of gastrointestinal illnesses in waters used for contact recreation; E. coli is commonly used as an indicator of fecal contamination. In the State of Oregon water contact recreational standards for fecal exposure is assessed by measuring in stream levels of E. coli. Because Johnson Creek is water quality limited for bacteria the Oregon Department of Environmental Quality (ODEQ) developed a Total Maximum Daily Load (TMDL) document to address the re-attainment of water quality standards. ODEQ designated management agencies (DMAs) within the Johnson Creek Watershed to adopt best management practices (BMPs) to meet required bacterial loading conditions called for by the TMDL. In this study the status and trends of E. coli over the last two decades were assessed (1996-2016) by analyzing loading conditions for different flow regimes before and after implementation of the TMDL. In addition, management actions utilized by DMAs within the watershed were observed, the effectiveness of structural BMPs were assessed, and recommendations were made to better evaluate progress towards meeting the TMDL. Four sampling sites were selected in this study to evaluate bacterial water quality within the watershed. The study sites spanned from the upper watershed near where Johnson Creek enters the City of Gresham to the mouth of the watershed in the City of Milwaukie. Two of the four study sites, located in subwatersheds dominated by urban development, showed progress towards meeting water quality standards, while the other two sites, which were in subwatersheds where rural and agricultural land use predominated, did not show progress. The strength of the conclusions in this study were hampered by inconsistent temporal spacing and sparse data which rendered trend and loading analyses largely un-interpretable.
Johnson Creek Watershed Bacteria Total Maximum Daily Load
Author: Mark Henderson
Publisher:
ISBN:
Category : Bacterial pollution of water
Languages : en
Pages : 16
Book Description
Publisher:
ISBN:
Category : Bacterial pollution of water
Languages : en
Pages : 16
Book Description
Shawsheen Bacteria TMDL Implementation Plan
Author: Tham Saravanapavan
Publisher:
ISBN:
Category : Bacteria
Languages : en
Pages :
Book Description
Publisher:
ISBN:
Category : Bacteria
Languages : en
Pages :
Book Description
Bacteria TMDL Implementation Control Strategies of the Southeast
Author: Rebecca Lynn Haynes
Publisher:
ISBN:
Category : Water
Languages : en
Pages : 308
Book Description
Publisher:
ISBN:
Category : Water
Languages : en
Pages : 308
Book Description
Water Quality in the Johnson Creek Watershed After the Implementation of Best Management Practices
Author: Betsy Dickes
Publisher:
ISBN:
Category : Best management practices (Pollution prevention)
Languages : en
Pages : 43
Book Description
Publisher:
ISBN:
Category : Best management practices (Pollution prevention)
Languages : en
Pages : 43
Book Description
Microbial Source Tracking
Author: Jorge W. Santo Domingo
Publisher: Emerging Issues in Food Safety
ISBN: 9781555813741
Category : Medical
Languages : en
Pages : 285
Book Description
Presents a state-of-the-art review of the current technology and applications being utilized to identify sources of fecal contamination in waterways. - Serves as a useful reference for researchers in the food industry, especially scientists investigating etiological agents responsible for food contamination. - Provides background information on MST methods and the assumptions and limitations associated with their use. - Covers a broad range of topics related to MST, including environmental monitoring, public health and national security, population biology, and microbial ecology. - Offers valuable insights into future research directions and technology developments.
Publisher: Emerging Issues in Food Safety
ISBN: 9781555813741
Category : Medical
Languages : en
Pages : 285
Book Description
Presents a state-of-the-art review of the current technology and applications being utilized to identify sources of fecal contamination in waterways. - Serves as a useful reference for researchers in the food industry, especially scientists investigating etiological agents responsible for food contamination. - Provides background information on MST methods and the assumptions and limitations associated with their use. - Covers a broad range of topics related to MST, including environmental monitoring, public health and national security, population biology, and microbial ecology. - Offers valuable insights into future research directions and technology developments.
Combined Sewer Overflows
Author: United States. Environmental Protection Agency. Office of Wastewater Management
Publisher:
ISBN:
Category : Combined sewer overflows
Languages : en
Pages : 298
Book Description
Publisher:
ISBN:
Category : Combined sewer overflows
Languages : en
Pages : 298
Book Description
TMDL Implementation Plan for Nitrogen and Escherichia Coli
Author: Arizona. Department of Environmental Quality
Publisher:
ISBN:
Category : Escherichia coli
Languages : en
Pages : 26
Book Description
Publisher:
ISBN:
Category : Escherichia coli
Languages : en
Pages : 26
Book Description
Crooked Creek Watershed TMDL Implementation Plan
Author:
Publisher:
ISBN:
Category : Crooked Creek Watershed (Ill.)
Languages : en
Pages :
Book Description
Publisher:
ISBN:
Category : Crooked Creek Watershed (Ill.)
Languages : en
Pages :
Book Description
Shoal Creek Watershed TMDL Implementation Plan
Author:
Publisher:
ISBN:
Category : Nutrient pollution of water
Languages : en
Pages : 53
Book Description
Publisher:
ISBN:
Category : Nutrient pollution of water
Languages : en
Pages : 53
Book Description