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: Current Projects

Using models to estimate microcystin concentrations in Ohio recreational and source waters.
Real-time and comprehensive predictions of harmful cyanobacterial algal blooms for Ohio recreational and source waters.

Cyanobacterial harmful algal blooms (cyanoHABs) and associated toxins, such as microcystin, are a major global water-quality issue. In Lake Erie and inland lakes in Ohio, elevated microcystin concentrations have caused water-resource managers to issue recreational water-quality advisories, and detections of microcystin in source waters have caused drinking-water plant managers to increase monitoring and adjust treatment methods. Models are needed to... (more...).


Biodegradation of microcystins in Lake Erie source waters and filters from drinking-water plants.
Biodegradation of microcystins in Lake Erie source waters and filters from drinking-water plants.

Harmful cyanobacterial “algal” blooms (cHABs) and associated toxins, such as microcystin, are a major global water-quality issue. In Lake Erie, researchers and local health officials have identified the presence of cyanobacterial blooms during the summer and early fall seasons. Reducing sources and causes of cHABs are long-term goals for water-resource managers worldwide. Strategies are needed to monitor for and predict cHAB occurrence and toxins, and to treat water to reduce or eliminate toxins. (more...).


Evaluation of rapid viability polymerase chain reaction (RV-PCR) for Bacillus globigii spores in post-disinfected water concentrated by ultrafiltration
Evaluation of rapid viability polymerase chain reaction (RV-PCR) for Bacillus globigii spores in post-disinfected water concentrated by ultrafiltration.

Rapid detection of biological warfare agents in the event of a bioterrorist attack is necessary to quickly determine the risk to the public and facilitate the decontamination process. Following decontamination after release of a biological agent, rapid viability methods are needed to ensure successful cleanup and the absence of infectious agents. By use of molecular methods such as quantitative PCR (qPCR), results can be obtained in approximately 2 hours following sample filtration and concentration; however, results do not provide information on viability of organisms. Current cultural methods for determination of viability require days for confirmed results. (more...).


Development of a model for predicting recreational water quality of the Cuyahoga River in the Cuyahoga Valley National Park based on real-time turbidity and stage data
Development of a model for predicting recreational water quality of the Cuyahoga River in the Cuyahoga Valley National Park based on real-time turbidity and stage data.

Cuyahoga Valley National Park officials are seeking a rapid method for estimating bacteria levels in the Cuyahoga River that would allow for more recreational use of the river. USGS and National Park Service personnel will use real-time turbidity data in a predictive model for recreational water quality. The model will provide predictions 7 days per week during the recreational season and will be accessible via the Ohio Nowcast Web site (www.ohionowcast.info).


Response of Microbial Source Tracking Markers to Wet-Weather Flows in Urban, Columbus, Ohio Waterways
Response of Microbial Source Tracking Markers to Wet-Weather Flows in Urban, Columbus, Ohio Waterways.

The overall goal of this proposed study is to provide MST host-associated marker data to help understand background levels of select sources of fecal contamination and to characterize the temporal and spatial trends in MST marker data during dry- and wet-weather events. (more)...


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