Water Resources Data, Colorado, Water Year 2000--Volume 2. Colorado River Basin
R.M. Crowfoot, J.W. Unruh, R.W. Boulger, G. B. O’Neill
2001, Water Data Report CO-00-2
Water-resources data for Colorado for the 2000 water year consist of records of stage, discharge, and water quality of streams; stage, contents, and water quality of lakes and reservoirs; meteorological data; and water levels and water quality of wells and springs. This report (Volumes 1 and 2) contains discharge records...
Geology of the Chesapeake and Ohio Canal National Historical Park and Potomac River corridor, Distric of Columbia, Maryland, West Virginia, and Virginia
C. Scott Southworth, David K. Brezinski, Randall C. Orndorff, Peter G. Chirico, Kerry M. Lagueux
2001, Open-File Report 2001-188-B
USGS GeoData Digital Orthophoto Quadrangles
Water Resources Division, U.S. Geological Survey
2001, Fact Sheet 057-01
A digital orthophoto quadrangle (DOQ) is a computer-generated image of an aerial photograph in which image displacement caused by terrain relief and camera tilts has been removed. It combines the image characteristics of a photograph with the geometric qualities of a map....
Radiochemical and chemical constituents in water from selected wells south of the Idaho National Engineering and Environmental Laboratory, Idaho
Roy C. Bartholomay, B.J. Tucker, L.L. Knobel, L. J. Mann
2001, Open-File Report 2001-138
The U.S. Geological Survey and the Bureau of Land Management, in cooperation with the U.S. Department of Energy, sampled water from five stock wells to monitor water quality of the Snake River Plain aquifer south of the Idaho National Engineering and Environmental Laboratory. The samples were analyzed for selected radiochemical...
Surface water quality-assurance plan for the South Carolina District of the U.S. Geological Survey
Theodore W. Cooney
2001, Open-File Report 2001-121
This District Surface Water Quality-Assurance Plan documents the standards, policies, and procedures used by the South Carolina District for activities related to the collection, processing, storage, analysis, and publication of surface-water data....
Preliminary Precambrian basement map of Colorado – A geologic interpretation of the aeromagnetic anomaly map
P.K. Sims, Viki Bankey, C. A. Finn
2001, Open-File Report 2001-364
No abstract available....
Digital data used to relate nutrient input to water quality in the Chesapeake Bay watershed
John W. Brakebill, Stephen D. Preston, Sarah K. Martucci
2001, Open-File Report 2001-251
Digital data sets compiled by the U.S. Geological Survey were used as input for a collection of Spatially Referenced Regressions On Watershed (SPARROW) attributes for the Chesapeake Bay region including parts of Delaware, Maryland, New York, Pennsylvania, Virginia, West Virginia, and the District of Columbia. These regressions use a nonlinear...
Visualization of drifting buoy deployments on St. Clair River near public water intakes - October 3-5, 2000
David J. Holtschlag, Stephen S. Aichele
2001, Open-File Report 2001-17
St. Clair River is a connecting channel of the Great Lakes between Lake Huron and Lake St. Clair. The river forms part of the international boundary between the United States and Canada in the eastern Lower Peninsula of Michigan and southern Ontario. Drifting buoys were deployed to help investigate flow...
Studies of the San Francisco Bay, California, estuarine ecosystem--Regional monitoring program results, 1998
Andrew J. Arnsberg, Brian E. Cole, James E. Cloern
2001, Open-File Report 2001-68
No abstract available....
Maryland Ground-Water Observation Well Network, 2001
Water Resources Division, U.S. Geological Survey
2001, Open-File Report 2001-248
MDNET is a point coverage that represents the locations and names of a network of observation wells for the State of Maryland. Additional information on water conditions at these sites can be found in the Ground-Water Site Inventory System (GWSI) database, which is maintained by the U.S. Geological Survey....
Potentiometric Surface of the Aquia Aquifer in Southern Maryland, September 1999
Stephen E. Curtin, David C. Andreasen, Judith C. Wheeler
2001, Open-File Report 2001-204
This report presents a map showing the potentiometric surface of the Aquia aquifer in the Aquia Formation of Paleocene age in Southern Maryland during September 1999. The map is based on water-level measurements in 85 wells. The potentiometric surface was above sea level near the...
Daily and seasonal variability of pH, dissolved oxygen, temperature, and specific conductance in the Colorado River between the forebay of Glen Canyon Dam and Lees Ferry, northeastern Arizona, 1998-99
Marilyn E. Flynn, Robert J. Hart, G. Richard Marzolf, Carl J. Bowser
2001, Open-File Report 2001-222
The productivity of the trout fishery in the tailwater reach of the Colorado River downstream from Glen Canyon Dam depends on the productivity of lower trophic levels. Photosynthesis and respiration are basic biological processes that control productivity and alter pH and oxygen concentration. During 1998?99, data were collected to aid...
Concentration of selected sulfonylurea, sulfonamide, and imidazolinone herbicides, other pesticides, and nutrients in 71 streams, 5 reservoir outflows, and 25 wells in the Midwestern United States, 1998
William A. Battaglin, Edward T. Furlong, Mark R. Burkhardt
2001, Water-Resources Investigations Report 2000-4225
Sulfonylurea (SU), sulfonamide (SA), and imidazolinone (IMI) herbicides are recently developed herbicides that function by inhibiting the action of a key plant enzyme, stopping plant growth, and eventually killing the plant. These compounds generally have low mammalian toxicity, but crop and non-crop plants demonstrate a wide range in sensitivity to...
Digital geologic map and database of the Chesapeake and Ohio Canal National Historical Park and Potomac River corridor, District of Columbia, Virginia, Maryland, and West Virginia
C. Scott Southworth, David K. Brezinski, Randall C. Orndorff, Peter G. Chirico, Kerry M. Lagueux
2001, Open-File Report 2001-188-A
The Chesapeake and Ohio (CO) Canal National Historical Park is unique in that it is the only land within the National Park system that crosses 5 physiographic provinces along a major river. From Georgetown, District of Columbia (D.C.) to Cumberland, Maryland (Md.), the CO Canal provides an opportunity to examine...
The difference between the potentiometric surfaces of the Aquia aquifer, September 1982 and September 1999 in southern Maryland
Stephen E. Curtin, David C. Andreasen, Judith C. Wheeler
2001, Open-File Report 2001-205
This report presents a map showing the change in the potentiometric surface of the Aquia aquifer in the Aquia Formation of Paleocene age in Southern Maryland for September 1982 and September 1999. The map, based on water level measurements in 67 wells, shows that the change of the potentiometric...
Water-level data for the Albuquerque Basin and adjacent areas, central New Mexico, period of record through 2000
Ralph K. DeWees
2001, Open-File Report 2001-184
The Albuquerque Basin, located in central New Mexico, is about 100 miles long and 25 to 40 miles wide. The basin is defined as the extent of consolidated and unconsolidated deposits of Tertiary and Quaternary age that encompass the structural Rio Grande Rift within the basin. Drinking-water supplies throughout the...
Potentiometric surface of the upper Patapsco aquifer in southern Maryland, September 1999
Stephen E. Curtin, David C. Andreasen, Judith C. Wheeler
2001, Open-File Report 2001-208
This report presents a map showing the potentiometric surface of the Upper Patapsco aquifer in the Patapsco Formation of Cretaceous age in Southern Maryland during September 1999. The map is based on water-level measurements in 49 wells. The potentiometric surface was 119 feet above sea level near the northern boundary...
MODFLOW-2000, the U.S. Geological Survey modular ground-water model: User guide to the LMT6 package, the linkage with MT3DMS for multi-species mass transport modeling
Chunmiao Zheng, Mary Catherine Hill, Paul A. Hsieh
2001, Open-File Report 2001-82
MODFLOW-2000, the newest version of MODFLOW, is a computer program that numerically solves the three-dimensional ground-water flow equation for a porous medium using a finite-difference method. MT3DMS, the successor to MT3D, is a computer program for modeling multi-species solute transport in three-dimensional ground-water systems using multiple solution techniques, including the...
Global Positioning System (GPS) survey of Augustine Volcano, Alaska, August 3-8, 2000: data processing, geodetic coordinates and comparison with prior geodetic surveys
Benjamin A. Pauk, John A. Power, Mike Lisowski, Daniel Dzurisin, Eugene Y. Iwatsubo, Tim Melbourne
2001, Open-File Report 2001-99
Between August 3 and 8,2000,the Alaska Volcano Observatory completed a Global Positioning System (GPS) survey at Augustine Volcano, Alaska. Augustine is a frequently active calcalkaline volcano located in the lower portion of Cook Inlet (fig. 1), with reported eruptions in 1812, 1882, 1909?, 1935, 1964, 1976, and 1986 (Miller et...
Surficial geologic map of the Fletcher, Madison, Stanardsville, and Swift Run Gap, 7.5-minute quadrangles, Madison, Greene, Albemarle, Rockingham, and Page Counties, Virginia
L. Scott Eaton, B. A. Morgan, J.L. Blair
2001, Open-File Report 2001-92
Evaluation of nonpoint-source contamination, Wisconsin: water year 1999
John F. Walker, D.J. Graczyk, Steven R. Corsi, J.A. Wierl, D.W. Owens
2001, Open-File Report 2001-105
The objective of the watershed-management evaluation monitoring program in Wisconsin is to evaluate the effectiveness of best-management practices (BMPs) for controlling nonpoint-source pollution in rural and urban watersheds. This progress report provides a summary of the data collected by the U.S Geological Survey for the program and a discussion of...
The difference between the potentiometric surfaces of the lower Patapsco aquifer, September 1990 and September 1999 in southern Maryland
Stephen E. Curtin, David C. Andreasen, Judith C. Wheeler
2001, Open-File Report 2001-211
This report presents a map showing the change in the potentiometric surface of the Lower Patapsco aquifer in the Lower Patapsco Formation of Cretaceous age in Southern Maryland for September 1990 and September 1999. The map, based on water?level measurements in 52 wells, shows that the change of the potentiometric...
Changes in riparian vegetation in the Southwestern United States: Historical Changes along the Mojave River, California
Robert H. Webb, Diane E. Boyer, Kristin H. Berry
2001, Open-File Report 2001-245
This report presents a map showing the potentiometric surface of the Upper Patapsco aquifer in the Patapsco Formation of Cretaceous age in Southern Maryland during September 1999. The map is based on water-level measurements in 49 wells. The potentiometric surface was 119 feet above sea level near the northern boundary...
Energy resources and changing land use, Front Range of Colorado: AAPG-EMD field trip guide, in association with the 2001 AAPG-EMD annual meeting
Neil S. Fishman, Stephen B. Roberts
2001, Open-File Report 2001-172
Over the past 30 years, communities in the Northern Front Range of Colorado have experienced tremendous urban and commercial growth rivaling or surpassing that in most other parts of the United States. Much of this growth coincides with areas underlain by critically needed natural resources (such as oil, natural gas,...
Well logs and core data from selected cored intervals, National Petroleum Reserve, Alaska
Philip H. Nelson, Joyce E. Kibler
2001, Open-File Report 2001-167
This report is preliminary and has not been reviewed for conformity with U.S. Geological Survey editorial standards or with the North American Stratigraphic Code. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government....
