Tannins and terpenoids as major precursors of Suwannee River fulvic acid
Jerry A. Leenheer, Colleen E. Rostad
2004, Scientific Investigations Report 2004-5276
Suwannee River fulvic acid (SRFA) was fractionated into 7 fractions by normal-phase chromatography on silica gel followed by reverse-phase fractionation on XAD-8 resin that produced 18 subfractions. Selected major subfractions were characterized by 13C-nuclear magnetic resonance (NMR), infrared spectrometry, and elemental analyses. 13C-NMR spectra of the subfractions were more indicative...
Effectiveness of a pressurized stormwater filtration system in Green Bay, Wisconsin: A study for the environmental technology verification program of the U.S. Environmental Protection Agency
J.A. Horwatich, Steven R. Corsi, Roger T. Bannerman
2004, Scientific Investigations Report 2004-5222
A pressurized stormwater filtration system was installed in 1998 as a stormwater-treatment practice to treat runoff from a hospital rooftop and parking lot in Green Bay, Wisconsin. This type of filtration system has been installed in Florida citrus groves and sewage treatment plants around the United States; however, this installation...
Characterization of water quality in Government Highline Canal at Camp 7 Diversion and Highline Lake, Mesa County, Colorado, July 2000 through September 2003
Roderick F. Ortiz
2004, Scientific Investigations Report 2004-5281
The U.S. Geological Survey, in cooperation with the Colorado Division of Parks and Recreation, collected and analyzed water-quality data for the Government Highline Canal and Highline Lake from July 2000 through September 2003. Implementation of modernization strategies for the canal, which supplies most of the water to the lake, would...
Chemistry of ground water in the Silver Springs basin, Florida, with an emphasis on nitrate
G. G. Phelps
2004, Scientific Investigations Report 2004-5144
The Silver Springs group, in central Marion County, Florida, has a combined average discharge rate of 796 cubic feet per second and forms the headwaters of the Silver River. The springs support a diverse ecosystem and are an important cultural and economic resource. Concentrations of nitrite-plus-nitrate (nitrate-N) in water from...
Evaluation of ground-water contribution to streamflow in coastal Georgia and adjacent parts of Florida and South Carolina
Sherlyn Priest
2004, Scientific Investigations Report 2004-5265
Stream-aquifer relations in the coastal area of Georgia and adjacent parts of Florida and South Carolina were evaluated as part of the Coastal Georgia Sound Science Initiative, the Georgia Environmental Protection Division's strategy to protect the Upper Floridan aquifer from saltwater intrusion. Ground-water discharge to streams was estimated using three...
Streamflow and water-quality characteristics at selected sites of the St. Johns River in central Florida, 1933 to 2002
Sharon E. Kroening
2004, Scientific Investigations Report 2004-5177
To meet water-supply needs in central Florida for 2020, the St. Johns River is being considered as a source of water supply to augment ground water from the Floridan aquifer system. Current (2004) information on streamflow and water-quality characteristics of the St. Johns River in east-central Florida is needed by...
Water withdrawals, use, discharge, and trends in Florida, 2000
Richard L. Marella
2004, Scientific Investigations Report 2004-5151
In 2000, the estimated amount of water withdrawn in Florida was 20,148 million gallons per day (Mgal/d), of which 59 percent was saline and 41 percent was fresh. Ground water accounted for 62 percent of freshwater withdrawals and surface water accounted for the remaining 38 percent. Ninety-two percent of the...
A method for simulating transient ground-water recharge in deep water-table settings in central Florida by using a simple water-balance/transfer-function model
Andrew M. O’Reilly
2004, Scientific Investigations Report 2004-5195
A relatively simple method is needed that provides estimates of transient ground-water recharge in deep water-table settings that can be incorporated into other hydrologic models. Deep water-table settings are areas where the water table is below the reach of plant roots and virtually all water that is not lost to...
Simulation of ground-water flow in the Potomac-Raritan-Magothy aquifer system, Pennsauken Township and vicinity, New Jersey
Daryll A. Pope, Martha K. Watt
2004, Scientific Investigations Report 2004-5025
The Potomac-Raritan-Magothy aquifer system is one of the primary sources of potable water in the Coastal Plain of New Jersey, particularly in heavily developed areas along the Delaware River. In Pennsauken Township, Camden County, local drinking-water supplies from this aquifer system have been contaminated by hexavalent chromium at concentrations that...
Nutrient enrichment, phytoplankton algal growth, and estimated rates of instream metabolic processes in the Quinebaug River Basin, Connecticut, 2000-2001
Michael J. Colombo, Stephen J. Grady, Elaine C. Todd Trench
2004, Scientific Investigations Report 2004-5227
A consistent and pervasive pattern of nutrient enrichment was substantiated by water-quality sampling in the Quinebaug River and its tributaries in eastern Connecticut during water years 2000 and 2001. Median total nitrogen and total phosphorus concentrations exceeded the U.S. Environmental Protection Agency?s recently recommended regional ambient water-qual-ity criteria for streams (0.71...
Hydrogeology and Water Quality of the Pepacton Reservoir Watershed in Southeastern New York. Part 3. Responses of Stream Base-Flow Chemistry to Hydrogeologic Factors and Nonpoint-Sources of Contamination
Paul M. Heisig, Patrick J. Phillips
2004, Scientific Investigations Report 2004-5008
Base-flow samples were collected seasonally from 20 small streams in the 372-square-mile Pepacton Reservoir watershed to evaluate the effects of hydrogeologic factors and nonpoint sources of contamination on the chemical composition of ground-water discharge. The reservoir provides part of New York City?s water supply. The subbasins represented one of three...
Quality of water on the Prairie Band Potawatomi Reservation, northeastern Kansas, May 2001 through August 2003
Heather C. Ross Schmidt
2004, Scientific Investigations Report 2004-5243
Water-quality samples were collected from 20 surface-water sites and 11 ground-water sites on the Prairie Band Potawatomi Reservation in northeastern Kansas in an effort to describe existing water-quality conditions on the reservation and to compare water-quality conditions to results from previous reports published as part of a multiyear cooperative study...
Phosphorus and suspended sediment load estimates for the Lower Boise River, Idaho, 1994-2002
Mary M. Donato, Dorene E. MacCoy
2004, Scientific Investigations Report 2004-5235
The U.S. Geological Survey used LOADEST, newly developed load estimation software, to develop regression equations and estimate loads of total phosphorus (TP), dissolved orthophosphorus (OP), and suspended sediment (SS) from January 1994 through September 2002 at four sites on the lower Boise River: Boise River below Diversion Dam near Boise,...
Simulation of the ground-water-flow system in the Kalamazoo County area, Michigan
Carol L. Luukkonen, Stephen P. Blumer, T. L. Weaver, Julie Jean
2004, Scientific Investigations Report 2004-5054
A ground-water-flow model was developed to investigate the ground-water resources of Kalamazoo County. Ground water is widely used as a source of water for drinking and industry in Kalamazoo County and the surrounding area. Additionally, lakes and streams are valued for their recreational and aesthetic uses. Stresses on the ground-water...
Assessment of soil and water contaminants from selected locations in and near the Idaho Army National Guard Orchard Training Area, Ada County, Idaho, 2001-2003
D. J. Parliman
2004, Scientific Investigations Report 2004-5207
In 2001, the National Guard Bureau and the U.S. Geological Survey began a project to compile hydrogeologic data and determine presence or absence of soil, surface-water, and ground-water contamination at the Idaho Army National Guard Orchard Training Area in southwestern Idaho. Between June 2002 and April 2003, a total of...
Stratigraphy and tectonic history of the Tucson Basin, Pima County, Arizona, based on the Exxon state (32)-1 well
Brenda B. Houser, Lisa Peters, Richard P. Esser, Mark E. Gettings
2004, Scientific Investigations Report 2004-5076
The Tucson Basin is a relatively large late Cenozoic extensional basin developed in the upper plate of the Catalina detachment fault in the southern Basin and Range Province, southeastern Arizona. In 1972, Exxon Company, U.S.A., drilled an exploration well (Exxon State (32)-1) near the center of the Tucson Basin that...
Water resources of Sweetwater County, Wyoming
Jon P. Mason, Kirk A. Miller
2004, Scientific Investigations Report 2004-5214
Sweetwater County is located in the southwestern part of Wyoming and is the largest county in the State. A study to quantify the availability and describe the chemical quality of surface-water and ground-water resources in Sweetwater County was conducted by the U.S. Geological Survey in cooperation with the Wyoming State...
Environmental factors and chemical and microbiological water-quality constituents related to the presence of enteric viruses in ground water from small public water supplies in southeastern Michigan
Donna S. Francy, Rebecca N. Bushon, Julie Stopar, Emma J. Luzano, G. Shay Fout
2004, Scientific Investigations Report 2004-5219
A study of small public ground-water-supply wells that produce water from discontinuous sand and gravel aquifers was done from July 1999 through July 2001 in southeastern Michigan. Samples were collected to determine the occurrence of viral pathogens and microbiological indicators of fecal contamination (“indicators”), determine whether indicators are adequate predictors...
Sedimentation and occurrence and trends of selected chemical constituents in bottom sediment of 10 small reservoirs, Eastern Kansas
Kyle E. Juracek
2004, Scientific Investigations Report 2004-5228
Many municipalities in Kansas rely on small reservoirs as a source of drinking water and for recreational activities. Because of their significance to the community, management of the reservoirs and the associated basins is important to protect the reservoirs from degradation. Effective reservoir management requires information about water quality, sedimentation,...
Probable effects of the proposed Sulphur Gulch Reservoir on Colorado River quantity and quality near Grand Junction, Colorado
M.J. Friedel
2004, Scientific Investigations Report 2004-5253
A 16,000 acre-foot reservoir is proposed to be located about 25 miles east of Grand Junction, Colorado, on a tributary of the Colorado River that drains the Sulphur Gulch watershed between De Beque and Cameo, Colorado. The Sulphur Gulch Reservoir, which would be filled by pumping water from the Colorado...
Hydrologic and water-quality characteristics for Bear Creek near Silver Hill, Arkansas, and selected Buffalo River sites, 1999-2004
Joel M. Galloway, W. Reed Green
2004, Scientific Investigations Report 2004-5244
The purpose of this report is to describe and compare the hydrologic and water-quality characteristics of Bear Creek near Silver Hill, Arkansas, to two sites on the Buffalo River upstream from the confluence of Bear Creek, to a site on Calf Creek, a smaller tributary to the Buffalo River, to...
Application of health-based screening levels to ground-water quality data in a state-scale pilot effort
Patricia L. Toccalino, Julia E. Norman, Robyn H. Phillips, Leon J. Kauffman, Paul E. Stackelberg, Lisa H. Nowell, Sandra J. Krietzman, Gloria B. Post
2004, Scientific Investigations Report 2004-5174
A state-scale pilot effort was conducted to evaluate a Health-Based Screening Level (HBSL) approach developed for communicating findings from the U.S. Geological Survey (USGS) National Water-Quality Assessment Program in a human-health context. Many aquifers sampled by USGS are used as drinking-water sources, and water-quality conditions historically have been assessed by...
Precipitation; ground-water age; ground-water nitrate concentrations, 1995-2002; and ground-water levels, 2002-03 in Eastern Bernalillo County, New Mexico
Paul J. Blanchard
2004, Scientific Investigations Report 2004-5189
The eastern Bernalillo County study area consists of about 150 square miles and includes all of Bernalillo County east of the crests of the Sandia and Manzanita Mountains. Soil and unconsolidated alluvial deposits overlie fractured and solution-channeled limestone in most of the study area. North of Interstate Highway 40 and...
Changes in streamflow and water quality in selected nontidal sites in the Chesapeake Bay Basin, 1985-2003
Michael J. Langland, Scott Phillips, Jeff P. Raffensperger, Douglas Moyer
2004, Scientific Investigations Report 2004-5259
Water-quality and streamflow data from 33 sites in nontidal portions of the Chesapeake Bay Basin were analyzed to document annual nutrient and sediment loads and trends for 1985 through 2003 as part of an annual evaluation of water-quality conditions by the Chesapeake Bay Program. As part of this study, different...
Water quality and possible sources of nitrate in the Cimarron Terrace Aquifer, Oklahoma, 2003
Jason R. Masoner, Shana L. Mashburn
2004, Scientific Investigations Report 2004-5221
Water from the Cimarron terrace aquifer in northwest Oklahoma commonly has nitrate concentrations that exceed the maximum contaminant level of 10 milligrams per liter of nitrite plus nitrate as nitrogen (referred to as nitrate) set by the U.S. Environmental Protection Agency for public drinking water supplies. Starting in July 2003,...
