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Availability and Quality of Water from Underground Coal Mines in Johnson and Martin Counties, Kentucky
D. S. Mull, Steven Cordivio1a, Dennis W. Risser
1981, Water-Resources Investigations Report 81-690
This report provides water users with detailed information on the location, quantity, and quality of water available from underground coal mines in the Breathitt Formation of Pennsylvanian age in part of eastern Kentucky. The principal coal seams mined are the Van Lear in Johnson County and the Alma in Martin...
Data on ground-water quality with emphasis on radionuclides, Sarasota County, Florida
Horace Sutcliffe, R. L. Miller
1981, Open-File Report 80-1223
A compilation of analytical results are presented for selected radiochemical and chemical characteristics for 200 groundwater samples collected from 92 wells in Sarasota County, Fla. Radium-226 analysis was made on 160 of the water samples and 80 samples equaled or exceeded the 5 picocuries per liter maximum contaminant level established...
Mean annual streamflow of selected drainage basins in the coal area of southeastern Montana
Rodger F. Ferreira
1981, Water-Resources Investigations Report 81-61
Streamflow characteristics of drainage basins within the Fort Union coal region of southeastern Montana were estimated to provide premining data for evaluating the future effects of mining on the environment. Estimated annual mean streamflow at 22 data-collection stations for water years 1975-77 ranged from 0 to 887 cubic feet per...
Eastern Gulf of Alaska seismicity: Annual report to the National Oceanic and Atmospheric Administration for April 1, 1980, through March 31, 1981
Christopher D. Stephens, John C. Lahr, John A. Rogers
1981, Open-File Report 81-897
The objective of this research is to collect and analyze data on earthquake activity in the northeast Gulf of Alaska (NEGOA) and adjacent onshore areas in order to develop a better regional seismotectonic model and more accurately assess the earthquake potential. This information is critical to the establishment of criteria...
Distribution of benthic chlorophyll in San Francisco Bay, California, February 1980 - February 1981
Janet Kay Thompson, Frederic H. Nichols, Sally M. Wienke
1981, Open-File Report 81-1134
Benthic microalgae biomass (chlorophyll a) data from San Francisco Bay are presented for the period February 1980 through February 1981. Benthic chlorophyll a was sampled throughout the bay (maximum of 54 stations) at bimonthly intervals and at monthly intervals at up to 14 stations in the southern bay. Ancillary data...
Clay mineralogy of Devonian shales in the Appalachian Basin
John W. Hosterman, Sallie I. Whitlow
1981, Open-File Report 81-585
A study of the clay mineralogy of the Devonian black shales of the Appalachian basin was undertaken to help predict areas for potential gas resources. More than 2,100 samples from 84 drill holes representing 11 shale units were analyzed for clay mineralogy or whole—rock mineralogy or both. Approximately 1,300 samples...
Composition of tidal flat sediments, Willapa Bay, Washington
Gary W. Hill, John L. Chinn
1981, Open-File Report 81-272
The purpose of this study was to characterize the modern sediments of sandy tidal flats in Willapa Bay, Washington based on their composition.Generally, clay comprises less than five percent of the sediment. Clay content increases upslope and up-estuary. Principal clay minerals are montmorillanite, illite, and chlorite; two clay mineral suites...
Geohydrology and numerical simulation of the alluvium and terrace aquifer along the Beaver-North Canadian River from the Panhandle to Canton Lake, northwestern Oklahoma
Robert E. Davis, Scott C. Christenson
1981, Open-File Report 81-483
A quantitative description of the hydrologic system in alluvium and terrace deposits along the Beaver-North Canadian River in northwestern Oklahoma is needed as an aid for planning and management of the aquifer. A two-dimensional finite-difference model was used to describe the aquifer and to predict the effects of future ground-water...
Hydrologic data of the lower Merrimack River basin, Massachusetts, from Concord River, Lowell, to Plum Island, Newburyport
David F. Delaney, Frederick B. Gay
1981, Open-File Report 81-1185
The lower Merrimack River basin study area drains approximately 180 square miles along the New Hampshire border in northeastern Massachusetts. This area includes parts of the Merrimack River basin within Massachusetts east of the Beaver Brook and Concord River basins, except for the Shawsheen River basin. Even though the Blackwater...
Surface-water quality, Twin Ponies watershed, Pottawattamie and Mills Counties, Iowa
Mark G. Detroy
1981, Open-File Report 81-679
Existing surface-water quality in the Twin Ponies watershed is significantly affected by runoff from agricultural lands that comprise most of the area. Runoff effects include the addition of phosphate, organic nitrogen, fecal bacteria, trace metals, pesticides and notably suspended sediment to streaMflow, because runoff commonly is a transport mechanism for...