Delineation of discharge areas of two contaminant plumes by use of diffusion samplers, Johns Pond, Cape Cod, Massachusetts, 1998
Jennifer G. Savoie, D.R. LeBlanc, D.S. Blackwood, T.D. McCobb, R. R. Rendigs, Scott Clifford
2000, Water-Resources Investigations Report 2000-4017
Diffusion samplers were installed in the bottom of Johns Pond, Cape Cod, Massachusetts, to confirm that volatile organic compounds from the Storm Drain-5 (SD-5) plume emanating from the Massachusetts Military Reservation (MMR) were discharging into the pond. An array of 134 vapor-diffusion samplers was buried by divers about 0.5 feet...
Panola Mountain, Georgia: A Water, Energy, and Biogeochemical Budgets Program Site
Norman E. Peters, Richard P. Hooper, Thomas G. Huntington, Brent T. Aulenback
2000, Fact Sheet 162-99
The Panola Mountain Research Watershed (PMRW) is a 41-hectare forested watershed in the southern Piedmont physiographic province near Atlanta, Georgia. The watershed contains a naturally regenerated second-growth forest on abandoned agricultural land, typical of the Piedmont. Research at PMRW has focused on how streamflow is generated, and in particular, on how water and solutes move...
The potential for calcium depletion in forest ecosystems of southeastern United States: Review and analysis
Thomas G. Huntington
2000, Global Biogeochemical Cycles (14) 623-638
Biogeochemical mass balance assessments of calcium status in southeastern forests indicate that losses through harvesting and soil leaching often exceed inputs from atmospheric deposition and weathering. Many forest soils of the southeastern United States are particularly sensitive because these soils and the underlying saprolite from which these soils are derived...
Calcium depletion in a Southeastern United States forest ecosystem
T.G. Huntington, R. P. Hooper, C.E. Johnson, Brent T. Aulenbach, R. Cappellato, A.E. Blum
2000, Soil Science Society of America Journal (64) 1845-1858
Forest soil Ca depletion through leaching and vegetation uptake may threaten long-term sustainability of forest productivity in the southeastern USA. This study was conducted to assess Ca pools and fluxes in a representative southern Piedmont forest to determine the soil Ca depletion rate. Soil Ca storage, Ca inputs in atmospheric...
A marine GIS library for Massachusetts Bay: Focusing on disposal sites, contaminated sediments, and sea floor mapping
Bradford Butman, John A. Lindsay, George Graettinger, Laura Hayes, Chris Polloni, Ellen Mecray, Tom Simon
1999, Open-File Report 99-439
No abstract available....
Relation of arsenic, iron, and manganese in ground water to aquifer type, bedrock lithogeochemistry, and land use in the New England coastal basins
Joseph D. Ayotte, Martha G. Nielsen, Gilpin R. Robinson Jr., Richard B. Moore
1999, Water-Resources Investigations Report 99-4162
In a study of arsenic concentrations in public-supply wells in the New England Coastal Basins, concentrations at or above 0.005 mg/L (milligrams per liter) were detected in more samples of water from wells completed in bedrock (25 percent of all samples) than in water from wells completed in stratified drift...
Soil-calcium depletion linked to acid rain and forest growth in the eastern United States
Gregory B. Lawrence, T.G. Huntington
1999, Water-Resources Investigations Report 98-4267
Since the discovery of acid rain in the 1970's, scientists have been concerned that deposition of acids could cause depletion of calcium in forest soils. Research in the 1980's showed that the amount of calcium in forest soils is controlled by several factors that are difficult to measure. Further research...
A new approach for determining the 87Sr/86Sr ratio of the ‘‘granitoid weathering component"
Thomas D. Bullen, Arthur F. White, Thomas G. Huntington, Norman E. Peters
1999, Conference Paper, Geochemistry of the earth's surface : proceedings of the 5th international symposium on geochemistry of the earth's surface, Reykjavik, Iceland, 15-20 August 1999
No abstract available...
Mississippi Basin Carbon Project; upland soil database for sites in Yazoo Basin, northern Mississippi
J. W. Harden, T. L. Fries, T.G. Huntington
1999, Open-File Report 99-319
The conversion of land from its native state to an agricultural use commonly results in a significant loss of soil carbon (Mann, 1985; Davidson and Ackerman, 1993). Globally, this loss is estimated to account for as much as 1/3 of the net CO2 emissions for the period of 1850 to...
Dynamic replacement and loss of soil carbon on eroding cropland
J. W. Harden, J. M. Sharpe, W.J. Parton, D.S. Ojima, T. L. Fries, Thomas G. Huntington, S. M. Dabney
1999, Global Biogeochemical Cycles (13) 885-901
Links between erosion/sedimentation history and soil carbon cycling were examined in a highly erosive setting in Mississippi loess soils. We sampled soils on (relatively) undisturbed and cropped hillslopes and measured C, N, 14C, and CO2 flux to characterize carbon storage and dynamics and to parameterize Century and spreadsheet 14C models for different erosion...
A siphon gage for monitoring surface-water levels
Timothy D. McCobb, Denis R. LeBlanc, Roy S. Socolow
1999, Journal of the American Water Resources Association (35) 1141-1146
A device that uses a siphon tube to establish a hydraulic connection between the bottom of an onshore standpipe and a point at the bottom of a water body was designed and tested for monitoring surface-water levels. Water is added to the standpipe to a level sufficient to drive a...
Delineation of contributing areas to selected public-supply wells, western Cape Cod, Massachusetts
John P. Masterson, Donald A. Walter, Denis R. LeBlanc
1998, Water-Resources Investigations Report 98-4237
No abstract available. ...
Soil, environmental, and watershed measurements in support of carbon cycling studies in northwestern Mississippi
Thomas G. Huntington, J. W. Harden, S. M. Dabney, D. A. Marion, C. Alonso, J. M. Sharpe, T. L. Fries
1998, Open-File Report 98-501
Measurements including soil respiration, soil moisture, soil temperature, and carbon export in suspended sediments from small watersheds were recorded at several field sites in northwestern Mississippi in support of hillslope process studies associated with the U.S. Geological Survey's Mississippi Basin Carbon Project (MBCP). These measurements were made to provide information...
Channel morphology and streambed-sediment quality in the Muddy River, Boston and Brookline, Massachusetts, October 1997
Robert F. Breault, Peter K. Weiskel, Timothy D. McCobb
1998, Water-Resources Investigations Report 98-4027
No abstract available....
Water-quality data and methods of analysis for samples collected near a plume of sewage-contaminated ground water, Ashumet Valley, Cape Cod, Massachusetts, 1993-94
Jennifer G. Savoie, Denis R. LeBlanc
1998, Water-Resources Investigations Report 97-4269
No abstract available....
Effects of simulated ground-water pumping and recharge on ground-water flow in Cape Cod, Martha's Vineyard, and Nantucket Island basins, Massachusetts
John P. Masterson, Paul M. Barlow
1997, Water Supply Paper 2447
Three-dimensional transient ground-water-flow models that simulate both freshwater and saltwater flow were developed for the flow cells of the Cape Cod Basin to determine the effects of long-term pumping and recharge, seasonal fluctuations in pumping and recharge, and prolonged reductions of natural recharge, on the position of the freshwater-saltwater interface,...
Effects of acidic deposition on water quality and forest health in Georgia
Thomas G. Huntington, R. P. Hooper
1997, Conference Paper, Proceedings of the 1997 Georgia Water Resources Conference : March 20-22, 1997, Athens, Georgia
Biogeochemical studies at the Panola Mountain Research Watershed near Atlanta, Ga., and in the Coastal Plain Province of Georgia have provided an assessment of some of the potential effects of acid deposition on streamwater quality and forest health in Georgia. Historically, "acid rain" has not been considered a potentially serious...
Use of particle tracking to improve numerical model calibration and to analyze ground-water flow and contaminant migration, Massachusetts Military Reservation, western Cape Cod, Massachusetts
John P. Masterson, Donald A. Walter, Jennifer G. Savoie
1997, Water Supply Paper 2482
A steady-state, three-dimensional flow model coupled with a particle-tracking algorithm was developed to assess the complex interaction of hydrogeologic conditions affecting ground-water flow and contaminant transport--including aquifer heterogeneities, hydrologic boundaries such as ponds and streams, ground-water withdrawals, and aquifer recharge to characterize the migration of contaminants emanating from beneath the...
Hydrogeologic framework of western Cape Cod, Massachusetts
John P. Masterson, Byron D. Stone, Donald A. Walter, Jennifer G. Savoie
1997, Hydrologic Atlas 741
The aquifer of western Cape Cod consists of several hydrogeologic units composed of sand, gravel, silt, and clay (fig. 1) that were deposited during the late Wisconsinan glaciation of New England. The aquifer is a shallow, unconfined hydrologic system in which ground-water flows radially outward from the apex of the...
Hydrogeologic framework of western Cape Cod, Massachusetts
John P. Masterson, B. D. Stone, D. A. Walter, Jennifer G. Savoie
1996, Open-File Report 96-465
No abstract available....
Hydrogeology and analysis of ground-water-flow system, Sagamore Marsh area, southeastern Massachusetts
Donald A. Walter, John P. Masterson, Paul M. Barlow
1996, Water-Resources Investigations Report 96-4200
A study of the hydrogeology and an analysis of the ground-water-flow system near Sagamore Marsh, southeastern Massachusetts, was undertaken to improve the understanding of the current (1994 95) hydrogeologic conditions near the marsh and how the ground-water system might respond to proposed changes in the tidal-stage regime of streams that...
Small watershed studies: Analytical approaches for understanding ecosystem response to environmental change
Thomas G. Huntington, R. P. Hooper, Peter S. Murdoch
1996, Conference Paper, Proceedings of the Watershed '96 Conference--Moving ahead together
Biogeochemical studies in small watersheds provide an analytical approach to understand how ecosystems respond to natural climatic variations and human-induced environmental change. Small watersheds, usually less than 5 km2, are small enough to permit characterization and understanding of ecosystem processes within relatively simple, homogeneous biological and physical settings; yet they are large enough to...
Predicting watershed acidification under alternate rainfall conditions
Thomas G. Huntington
1996, Water, Air, & Soil Pollution (90) 429-450
The effect of alternate rainfall scenarios on acidification of a forested watershed subjected to chronic acidic deposition was assessed using the model of acidification of groundwater in catchments (MAGIC). The model was calibrated at the Panola Mountain Research Watershed, near Atlanta, Georgia, U.S.A. using measured soil properties, wet and dry...
Estimated withdrawals and use of freshwater in Vermont, 1990
M.A. Horn, Laura Medalie
1995, Water-Resources Investigations Report 93-4097
Estimated freshwater withdrawals during 1990 in Vermont totaled about 632 million gallons per day. The largest withdrawals were for thermoelectric- power generation (82 percent), industrial use (7 percent), and public supply (6 percent). Most withdrawals, 587 million gallons per day, were made from surface-water sources as compared to 44.9 million...
Geochemical and hydrologic controls on phosphorus transport in a sewage-contaminated sand and gravel aquifer near Ashumet Pond, Cape Cod, Massachusetts
D. A. Walter, B.A. Rea, K.G. Stollenwerk, Jennifer G. Savoie
1995, Open-File Report 95-381
The disposal of secondarily treated sewage onto rapid infiltration sand beds at the Massachusetts Military Reservation, Cape Cod, Massachusetts, has created a sewage plume in the underlying sand and gravel aquifer; the part of the\x11sewage plume that contains dissolved phosphorus extends about 2,500 feet downgradient of the sewage-disposal beds. A...