USGS Ohio Water Science Center
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National Ground Water Awareness Week – March 9-15, 2014
3/10/2014 -- National Ground Water Awareness Week – March 9-15, 2014 Why is the river flowing if it has not been raining? Where does the farmer get all that water for irrigating the crops? Where does my drinking water come from? Groundwater could be the answer. Excluding the glaciers and polar icecaps, 95 percent of the freshwater in the world is groundwater. Groundwater is the water that seeps into the ground and fills the spaces and cracks in the rocks below the surface. It is not typically an underground river or lake. Learn more about groundwater and USGS groundwater studies at the USGS Water Science School and USGS Groundwater Information Pages. National Groundwater Awareness Week is sponsored by the National Ground Water Association and many partners.
Learning To Predict Beach Water Quality.
3/3/2014 -- The USGS Ohio Water Science Center hosted the “Third Interagency Workshop to Develop Predictive Models for Beaches” on February 25-26. Instructors were from the USGS, USEPA, University of Toledo, and Wisconsin Department of Natural Resources. Students were a mix of local and state beach managers, consultants, and USGS scientists from Ohio, Pennsylvania, Illinois, Michigan, and Kansas. Students learned how to develop “nowcasts” using datasets from their own beaches. Nowcasts inform the public of current bacterial water-quality conditions on the basis of predictive models. Learn more about using predictive models for recreational water quality.
Winter Streamflow And Water-Quality Sampling.
2/11/2014 -- During the winter, many of Ohio’s waterways become ice affected. Extreme cold weather can temporarily cause a variety of problems that result in erroneous gage heights and[or] streamflow values reported on NWIS. When streams ice over, streamgagers estimate the part of the record that is ice affected by using discharge measurements at the site, hydrographic comparison with other sites in the same drainage basin, weather records for the area, and weekly notes taken by an observer. Alternative water-quality sampling protocols may need to be implemented, as occurred recently at the ice-affected Maumee River at Waterville, Ohio.
Is The Algae Bloom Toxic?
2/7/2014 -- Toxic cyanobacterial blooms (toxic algae—or—harmful algal blooms (HABs)) can affect drinking water, water-based recreation, and watershed ecology. Because cyanbacterial blooms include strains that can produce toxins as well as strains that cannot, a method that can differentiate between toxin producers and toxin nonproducers is needed. An experimental molecular-based method was tested and optimized for monitoring cyanobacterial blooms and is described in a new report. Water samples were collected from Maumee Bay State Park, Ohio, and analyzed for selected cyanobacteria gene sequences by DNA-based qPCR and RNA-based qRT-PCR. Results were compared to microcystin concentrations determined by an enzyme-linked immunosorbent assay (ELISA). These molecular assays may be used in future research projects to better understand cyanobacterial blooms and potentially to create an early warning system that can be used at recreational beaches.
Budget Cuts Affect Surface-Water Stations.
12/26/2013 -- Eight surface-water stations in Ohio will be or have recently been discontinued (map and information). Owing to a loss of local funding, five streamgages in Summit County and one streamgage in Cuyahoga County are slated for discontinuation in January 2014. Although some stations, such as the recently discontinued Huff Run water-quality station in Tuscarawas County, successfully serve a particular short-term project, many other water-quality stations and streamgages were established for long-term monitoring.
Water Resources Programs in Ohio
Ohio WSC Fact Sheets