USGS Ohio Water Science Center

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Ohio Water Microbiology Lab

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Ohio Water Science Center

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USGS Water Science Centers are located in each state.

There is a USGS Water Science Center office in each State. Washington Oregon California Idaho Nevada Montana Wyoming Utah Colorado Arizona New Mexico North Dakota South Dakota Nebraska Kansas Oklahoma Texas Minnesota Iowa Missouri Arkansas Louisiana Wisconsin Illinois Mississippi Michigan Indiana Ohio Kentucky Tennessee Alabama Pennsylvania West Virginia Georgia Florida Caribbean Alaska Hawaii New York Vermont New Hampshire Maine Massachusettes South Carolina North Carolina Rhode Island Virginia Connecticut New Jersey Maryland-Delaware-D.C.

OWML: Completed Projects

Beach Health Research—Ohio Water Science Center
Beach Health Research—Ohio Water Science Center.

The goal of the Beach Health Research is to advance the science of monitoring and assessing recreational water quality to provide beach managers with reliable, science based information to make well-informed beach closure decisions to protect public health. (more)...


Using New Tools to Better Understand and Predict Harmful Cyanobacterial Algal Blooms in Lake Erie and Ohio Inland Recreational Areas
Using New Tools to Better Understand and Predict Harmful Cyanobacterial Algal Blooms in Lake Erie and Ohio Inland Recreational Areas.

The overall goal of the project is to apply qPCR methods and optical sensors over an entire season to better understand the link between cyanobacteria community structure, environmental and water-quality factors, and bloom toxicity. (more)...


Rapid determination of E. coli concentrations at Lake Erie beaches using the IMS/ATP rapid method
Rapid determination of E. coli concentrations at Lake Erie beaches using the IMS/ATP rapid method

Current methods to determine concentrations of fecal-indicator bacteria require at least 18–24 hours from sample collection to availability of results. This time frame is too long to adequately assess the safety of the water based on recreational standards. Bacteria concentrations in the water can change overnight; and because results of the current day’s bacteria concentrations are not (more)...

Evaluating the effectiveness of chlorine dioxide as a wastewater disinfection agent
Evaluating the effectiveness of chlorine dioxide as a wastewater disinfection agent

As communities in Ohio continue to work toward eliminating pollutant discharge to streams to meet to goals of the Clean Water Act, wastewater reuse through onsite wastewater treatment followed by use for irrigation is an important option. It has been estimated that only 6.4% of Ohio soils are suitable for traditional leach-line or mound septic (more)...


Membrane Bioreactor Versus Conventional Wastewater Disinfection Study
Membrane bioreactors (MBRs)

Membrane bioreactors (MBRs) are a relatively new wastewater treatment technology in which the conventional secondary treatment or secondary with tertiary treatment processes are replaced by a membrane separation process. Although there is adequate information on the reduction of bacteria and protozoa concentrations through MBR processes, especially in drinking waters, manufacturers report variable success in reducing concentrations of viruses. (more)...


Near-real-time assessments of recreational water quality at inland lakes and relation to public health risk
Near-real-time assessments of recreational water quality at inland lakes and relation to public health risk.

The overall goal is to determine whether predictive models and rapid analytical methods can be used to provide near-real-time, accurate assessments of water quality at inland recreational waters and characterize the relations between rapid assessments and pathogen occurrence in inland waters. (more)...


Evaluation of Real-Time Quantitative Polymerase Chain Reaction (QPCR) to Estimate Escherichia coli Concentrations at Lake Erie Beaches
Evaluation of Real-Time Quantitative Polymerase Chain Reaction (QPCR) to Estimate Escherichia coli Concentrations at Lake Erie Beaches

There is a distinct need for a method to rapidly determine concentrations of fecal-indicator bacteria in recreational waters because current methods require at least 18-24 hours from sample collection to availability of results. Bacteria concentrations in the water (more)...


Developing a method to rapidly estimate fecal-indicator bacteria concentrations in the Cuyahoga River, Cuyahoga Valley National Park
Developing a method to rapidly estimate fecal-indicator bacteria concentrations in the Cuyahoga River, Cuyahoga Valley National Park

The water quality of the Cuyahoga River within the Cuyahoga Valley National Park (CVNP) is a primary concern to park managers and to visitors of the park. The 23-mile reach of the Cuyahoga River within the park receives discharges of storm water, combined-sewer overflows, and incompletely disinfected wastewater from urban areas. These discharges result in a threat to the health of visitors who come into contact with river water (more)...


Testing of analytical methods for pathogens in finished drinking-water supplies

Testing of analytical methods for pathogens in finished drinking-water supplies

Certain microbiological pathogens are considered potential biological warfare agents and cause homeland security concerns, especially for drinking-water supplies.  Traditional cultural and microscopic methods allow detection of these pathogens; however, the methods take days before any confirmatory answer is available.  A quantitative polymerase chain reaction (more)...


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