Now showing items 188-207 of 230

    • Survival and regrowth of fecal enterococci in desiccated and rewetted sediments 

      Hartel, Peter G.; Rodgers, Karen; Fisher, Jared A.; McDonald, Jennifer L.; Gentit, Lisa C.; Otero, Ernesto; Rivera-Torres, Yaritza; Bryant, Tamara L.; Jones, Stephen H. (Georgia Institute of TechnologyInstitute of Ecology, The University of Georgia, 2005-04)
      Fecal enterococci are bacteria widely used as indicators of fecal contamination in marine and estuarine waters. One assumption is that these bacteria do not persist or regrow in the environment. Our continuing problems ...
    • Sustainable water resources for Gwinnett County, Georgia 

      Scarbrough, James H. (Georgia Institute of TechnologyInstitute of Ecology, The University of Georgia, 2005-04)
      In the past years Gwinnett County water supply and treatment has grown from a few wells, a small intake on the river and a treatment plant to a current 225 million gallons a day of water production capacity and about 64 ...
    • Sustainable water resources management by Georgia utilities: Clayton County Water Authority 

      Thomas, Mike (Georgia Institute of TechnologyInstitute of Ecology, The University of Georgia, 2005-04)
      CCWA utilizes a comprehensive approach to managing the county’s limited water resources. Integrating water reclamation, water production, and watershed management provides a sustainable process that protects water resources ...
    • The swamp eel, Monopterus sp. Cf. M. Albus, in the Chattahoochee River system, Fulton County, Georgia 

      Straight, Carrie A.; Reinert, Thomas R.; Freeman, Byron J.; Shelton, Jay (Georgia Institute of TechnologyInstitute of Ecology, The University of Georgia, 2005-04)
      In the mid 1990’s, researchers discovered a member of the swamp eel, family Synbranchidae, inhabiting the ponds at the Chattahoochee Nature Center (CNC). The swamp eel (Monopterus albus) is the species most similar to eels ...
    • Time-series stream temperature and dissolved oxygen modeling in the Lower Flint River Basin 

      Li, Guoyuan; Jackson, C. Rhett (Georgia Institute of TechnologyInstitute of Ecology, The University of Georgia, 2005-04)
      In the Lower Flint River Basin (LFRB), ex- cessive groundwater withdrawals and possible water supply reservoirs threaten to exacerbate low ow conditions during summer droughts, possibly leading stream temperature ...
    • The TMDL process... what happens next? The practical experience of implementing TMDL plans in the Suwannee Basin by the SGRDC 

      Perry, Emily S. (Georgia Institute of TechnologyInstitute of Ecology, The University of Georgia, 2005-04)
      After the TMDL Implementation Plans were completed for the Suwannee Basin, the next step was to begin implementing programs stated in the plans. Since the December 2002 deadline, the SGRDC has assisted with the implementation ...
    • Transient changes in fracture aperture during hydraulic well tests in fractured gneiss 

      Schweisinger, Todd; Svenson, E.; Murdoch, L.C. (Georgia Institute of TechnologyInstitute of Ecology, The University of Georgia, 2005-04)
      The influence of deformable fractures on aquifer tests is studied by the development of a technique to measure and analyze in-situ changes in fracture aperture. A high-resolution borehole extensometer is used to measure ...
    • Trends in agricultural sources of nitrogen in the Altamaha River watershed 

      Schaefer, Sylvia C.; Alber, Merryl (Georgia Institute of TechnologyInstitute of Ecology, The University of Georgia, 2005-04)
      We compiled USDA Census of Agriculture data on livestock production and agricultural land use along with USGS estimates of fertilizer use to evaluate trends in agricultural sources of nitrogen (N) to the watershed of the ...
    • Upgrading the NRCS Y-14 dam in Gwinnett County 

      Hudock, Gregg W.; Humphries, Richard W.; Fleming, Sam; West, Terry (Georgia Institute of TechnologyInstitute of Ecology, The University of Georgia, 2005-04)
      Suburban development of Gwinnett County has surrounded many of the flood control watershed dams that were built in the mid-1900s. In many cases, the watersheds and downstream reaches have developed significantly since ...
    • The Upper Flint River Watershed Alliance: finding solutions to common goals 

      Askew, Leigh; Blencoe, Corinne (Georgia Institute of TechnologyInstitute of Ecology, The University of Georgia, 2005-04)
      The Upper Flint River Watershed Alliance was formed to protect, preserve, and enhance the unique resources of the Upper Flint watershed. In order to find solutions to common goals, and to address the future of the region’s ...
    • Uranium, radium, and radon in well water in South Carolina: distribution and problems 

      Stone, Peter A.; Devlin, Robert J.; Crawford, Bruce; Baize, David G. (Georgia Institute of TechnologyInstitute of Ecology, The University of Georgia, 2005-04)
    • Use of green roofs for ultra-urban stream restoration in the Georgia Piedmont (USA) 

      Carter, Timothy L.; Rasmussen, Todd C. (Georgia Institute of TechnologyInstitute of Ecology, The University of Georgia, 2005-04)
      Stormwater management has tra- ditionally focused on the use of conveyances to quickly move stormwater runo from urban cen- ters into nearby rivers, streams, and lakes. The increased ow caused by impervious surface ...
    • The use of hydroacoustic current meters to measure the flow of Georgia streams 

      Gotvald, Anthony J. (Georgia Institute of TechnologyInstitute of Ecology, The University of Georgia, 2005-04)
      Hydroacoustic current meters use the Doppler effect to measure the velocity of suspended sediment par-ticles in water, which can then be used as a measure of the water velocity. Along with measured cross-sectional area, ...
    • Using Adopt-A-Stream in the coastal plain: a look at the macroinvertebrate index 

      Muenz, Tara K.; Golladay, Stephen W.; Vellidis, George (Georgia Institute of TechnologyInstitute of Ecology, The University of Georgia, 2005-04)
      As major threats to Georgia’s waterways continue, volunteer-based monitoring groups such as Georgia Adopt-A-Stream (GA AAS) have become a vital source of information on aquatic ecological condition. Biological monitoring ...
    • Using dynamic system models for water use accountability and planning in Georgia 

      Volpe, Joe; Voss, Charlie (Georgia Institute of TechnologyInstitute of Ecology, The University of Georgia, 2005-04)
      Effective water use planning relies on the ability to first quantify the distribution of water within a system and then evaluate alternative strategies to identify the outcome that offers the greatest improvement of ...
    • Using stream gage data to quantify surface water/groundwater exchanges between the Upper Floridan aquifer and the lower Flint River, Georgia, USA, 1989-2003 

      Opsahl, Stephen P.; Chapal, Scott E.; Wheeler, Christopher C. (Georgia Institute of TechnologyInstitute of Ecology, The University of Georgia, 2005-04)
      Historical discharge measurements from two U. S. Geological Survey (USGS) gaging stations were used to quantify surface water/groundwater exchanges between the lower Flint River and the Upper Floridan aquifer (UFA) in south ...
    • Using the Georgia P-Index to identify high risk management of poultry litter 

      Gaskin, Julia W.; Harris, Keith; Cabrera, Miguel L.; Risse, L. Mark (Georgia Institute of TechnologyInstitute of Ecology, The University of Georgia, 2005-04)
      The Georgia P Index was developed as a tool to evaluate the risk of bioavailable P loss in fields under various management practices. We compared the results of the P Index with four years of data from 1.5 m by 4.6 m ...
    • Using the National Weather Service AHPS web site 

      Bushong, Jack (Georgia Institute of TechnologyInstitute of Ecology, The University of Georgia, 2005-04)
      The Advanced Hydrologic Prediction Service (AHPS), a new and major initiative of the National Weather Service (NWS), is a web-based suite of hydrological forecast products. These AHPS products take advantage of advances ...
    • Utilizing instrumentation to measure acoustic reflectance as a surrogate for suspended-sediment concentrations along a Piedmont River in Rockdale County, Georgia 

      Stephens, Daniel P. (Georgia Institute of TechnologyInstitute of Ecology, The University of Georgia, 2005-04)
      Erosion and sedimentation is a prevalent water-quality issue in many Piedmont streams in Georgia (Landers and others, 2002). Typically, concentrations of suspended sediment are determined by collecting water samples and ...
    • The Utton Center Model Compacts Project 

      Sherk, George William (Georgia Institute of TechnologyInstitute of Ecology, The University of Georgia, 2005-04)
      Interstate compacts have been used since Colonial times to resolve conflicts between states. With regard to conflicts over interstate water resources, compacts have been used for multiple purposes including water supply, ...