Reply to comment on "The surface area of soil organic matter"
Cary T. Chiou, Jiunn Fwu Lee, Stephen A. Boyd
1992, Environmental Science & Technology (26) 404-406
No abstract available....
Response to comment on "Use of colloid filtration theory in modeling movement of bacteria through a contaminated sandy aquifer"
Ronald W. Harvey, Stephen P. Garabedian
1992, Environmental Science & Technology (26) 401-402
No abstract available....
Groundwater use: Equilibrium between social benefits and potential environmental costs
M.R. Llamas, W. Back, J. Margat
1992, Hydrogeology Journal (1) 3-14
In many countries groundwater resources are under-appreciated and, therefore, underutilizied; whereas, in some areas they are inappropriately exploited and, therefore, over-utilized. “Over utilization” can lead to depletion in quantity or a degradation in quality or both. Obstacles to effective management include: (1) lack of knowledge of basic principles of...
Natural toxic waters of Poas Volcano, Costa Rica
Susan L. Brantley, Gary L. Rowe, Leonard F. Konikow, Ward E. Sanford
1992, National Geographic Research (8) 328-337
No abstract available....
Hydrologic budget estimates
Jill Baron, A. Scott Denning
1992, Book, Biogeochemistry of a subalpine ecosystem: Loch Vale watershed
No abstract available....
The effect of mesoscale vegetation distribution on the hydrologic cycle and regional and global climate
R. A. Pielke, T. J. Lee, Timothy G.F. Kittel, J. M. Cram, T. N. Chase, G. A. Dalu, Jill Baron
1992, Book, Conference on hydroclimatology: Land-surface/atmosphere interactions on global and regional scales
No abstract available....
Changes in chemical characteristics of water in selected wetlands in the Cottonwood Lake area, North Dakota, U.S.A., 1967-1989
James W. LaBaugh, George A. Swanson
R.D. Robarts, Max L. Bothwell, editor(s)
1992, National Hydrology Research Institute Symposium 7
Microbial distributions, activities, and movement in the terrestial subsurface: Experimental and theoretical studies
Ronald W. Harvey, M.A. Widdowson
R. J. Wagenet, P. Bavcye, B.A. Stewart, editor(s)
1992, Book chapter, Interactive process in soil science
No abstract available. ...
Hierarchical analytical approach to evaluating the transport and biogeochemical fate of organic compounds in sewage-contaminated groundwater, Cape Cod, Massachusetts
L. B. Barber
S. Lesage, R. Jackson, editor(s)
1992, Book chapter, Groundwater contamination and analysis at hazardous waste sites
No abstract available....
Development of isotopically heterogeneous infiltration waters in an artificial catchment in Chuzhou, China
C. Kendall, Weizu Gu
1992, Conference Paper, Isotope Techniques in Water Resources Development 1991
No abstract available....
Analytical applications of inductively coupled plasma-mass spectrometry
H. E. Taylor, John R. Garbarino
A. Montaser, D.W. Golightly, editor(s)
1992, Book chapter, Inductively coupled plasma in atomic spectrometry
No abstract available. ...
Transport of pathogens through soils and aquifers
G. Bitton, R.W. Harvey
1992, Book chapter, Environmental microbiology
No abstract available....
Nitrogen-15 and carbon-13 NMR investigation of hydroxylamine-derivatized humic substances
Kevin A. Thorn, Jeffrey B. Arterburn, Michael A. Mikita
1992, Environmental Science & Technology (26) 107-116
No abstract available....
Sampling vadose-zone water for a volatile organic compound at Picatinny Arsenal, New Jersey
James A. Smith, H. Jean Cho, Peter R. Jaffe, Cecilia L. MacLeod, Susan A. Koehnlein
1992, Journal of Environmental Quality (21) 264-271
A new method of collecting samples of unsaturated-zone water for quantitative analysis for a volatile organic compound, trichloroethene (TCE), was compared to three other, previously described sampling methodologies in the laboratory and in the field. In the laboratory, prepared water samples containing TCE in a known concentration (20 µg/L) were...
Geochemical heterogeneity in a sand and gravel aquifer: Effect of sediment mineralogy and particle size on the sorption of chlorobenzenes
Larry B. Barber II, E. Michael Thurman, Donald D. Runnells
1992, Journal of Contaminant Hydrology (9) 35-54
The effect of particle size, mineralogy and sediment organic carbon (SOC) on sorption of tetrachlorobenzene and pentachlorobenzene was evaluated using batch-isotherm experiments on sediment particle-size and mineralogical fractions from a sand and gravel aquifer, Cape Cod, Massachusetts. Concentration of SOC and sorption of chlorobenzenes increase with decreasing particle size. For...
Hydrology of the Cave Springs area near Chattanooga, Hamilton County, Tennessee
Arthur D. Bradfield
1992, Water-Resources Investigations Report 92-4018
The hydrology of Cave Springs, the second largest spring in East Tennessee was investigated from July 1987 to September 1989. Wells near the spring supply about 5 million gallons per day of potable water to people in Hamilton County near Chattanooga. Discharge from the spring averaged about 13.5 cubic feet...
Associations of free-living bacteria and dissolved organic compounds in a plume of contaminated groundwater
R.W. Harvey, L.B. Barber II
McCalady Donald L., editor(s)
1992, Conference Paper, Journal of Contaminant Hydrology
Associations of free-living bacteria (FLB) and dissolved organic contaminants in a 4-km-long plume of sewage-contaminated groundwater were investigated. Abundance of FLB in the core of the plume (as delineated by maximum specific conductance) steadily decreased in the direction of flow from a point 0.25 km downgradient from the source to...
Louisiana hydrologic atlas map no. 5: Quality of freshwater in aquifers of Louisiana, 1988
Dan J. Tomaszewski
1992, Water-Resources Investigations Report 90-4119
No abstract available....
Tensiometers: Theory, construction, and use
D.I. Stannard
1992, Geotechnical Testing Journal (15) 48-58
Standard tensiometers are used to measure matric potential as low as −870 cm of water in the unsaturated zone by creating a saturated hydraulic link between the soil water and a pressure sensor. The direction and, in some cases, quantity of water flux can be determined using multiple installations.A variety...
Associations of free-living bacteria and dissolved organic compounds in a plume of contaminated groundwater
Ronald W. Harvey, Larry B. Barber II
1992, Journal of Contaminant Hydrology (9) 91-103
Associations of free-living bacteria (FLB) and dissolved organic contaminants in a 4-km-long plume of sewage-contaminated groundwater were investigated. Abundance of FLB in the core of the plume (as delineated by maximum specific conductance) steadily decreased in the direction of flow from a point 0.25 km downgradient from the source to...
Nitrate is a preferred electron acceptor for growth of freshwater selenate-respiring bacteria
Nisan A. Steinberg, Jodi Switzer Blum, Lawrence Hochstein, Ronald S. Oremland
1992, Applied and Environmental Microbiology (58) 426-428
An anaerobic, freshwater enrichment grew with either nitrate or selenate as an electron acceptor. With both ions present, nitrate reduction preceded selenate reduction. An isolate from the enrichment grew on either ion, but the presence of nitrate precluded the reduction of selenate. Stock cultures of denitrifiers grew anaerobically on nitrate...
Synthetic organic agrochemicals in the lower Mississippi River and its major tributaries--Distribution, transport and fate
W. E. Pereira, C.E. Rostad, T.J. Leiker
1992, Journal of Contaminant Hydrology (9) 175-188
The Mississippi River and its major tributaries transport herbicides and their degradation products from agricultural areas in the mid-western U.S.A. These compounds include atrazine and its degradation products (desethyl- and desisopropylatrazine), simazine, cyanazine, metolachlor, and alachlor and its degradation products (2-chloro-2′,6′-diethylacetanilide 2-hydroxy-2′,6′-diethylacetanilide and 2,6-diethylaniline). These compounds were identified and confirmed...
Bioaccumulation of hydrocarbons derived from terrestrial and anthropogenic sources in the Asian clam, Potamocorbula amurensis, in San Francisco Bay estuary
Wilfred E. Pereira, Frances D. Hostettler, John B. Rapp
1992, Marine Pollution Bulletin (24) 103-109
An assessment was made in Suisun Bay, California, of the distributions of hydrocarbons in estuarine bed and suspended sediments and in the recently introduced asian clam, Potamocorbula amurensis. Sediments and clams were contaminated with hydrocarbons derived from petrogenic and pyrogenic sources. Distributions of alkanes and of hopane and sterane biomarkers in...
Reply to comment by G. de Marsily, P. Combes, and P. Goblet on "Ground-water models cannot be validated"
J.D. Bredehoeft, Leonard F. Konikow
1992, Advances in Water Resources (15) 371-372
No abstract available....
A critical review of inductively coupled plasma-mass spectrometry for geoanalysis, geochemistry and hydrology, Part 1. Analytical performance
I.B. Brenner, Howard E. Taylor
1992, Critical Reviews in Analytical Chemistry (23) 355-367
Present-day inductively coupled plasma-mass spectrometry (ICP-MS) instrumentation is described briefly. Emphasis is placed on performance characteristics for geoanalysis, geochemistry, and hydrology. Applications where ICP-MS would be indispensable are indicated. Determination of geochemically diagnostic trace elements (such as the rare earth elements [REE], U and Th), of isotope ratios for fingerprinting,...
