Skip to main content
U.S. flag

An official website of the United States government

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Https

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Search Results

68937 results.

Alternate formats: RIS file of the first 3000 search results  |  Download all results as CSV | TSV | Excel  |  RSS feed based on this search  |  JSON version of this page of results

Page 1773, results 44301 - 44325

Show results on a map

Publication Extents

Not all publications have extents, not all extents are completely accurate
Summary of reported agriculture and irrigation water use in Crittendon County, Arkansas, 1991
T.W. Holland, C.A. Manning
1991, Open-File Report 93-426
This report summarizes the 1991 water-use reporting through the Conservation District Office in Crittenden County, Arkansas. The number of withdrawal registrations for Crittenden County was 868 (824 groundwater and 44 surface water). Water withdrawals reported during the registration process total 0.67 Mgal/d (0.67 Mgal/d groundwater and none from surface water)...
Definitions of database files and fields of the Personal Computer-Based Water Data Sources Directory
J. Wayne Green
1991, Open-File Report 91-184
This report describes the data-base files and fields of the personal computer-based Water Data Sources Directory (WDSD). The personal computer-based WDSD was derived from the U.S. Geological Survey (USGS) mainframe computer version. The mainframe version of the WDSD is a hierarchical data-base design. The personal computer-based WDSD is a relational...
Work plan for regional reconnaissance for selected herbicides and nitrate in ground water of the mid-continent United States, 1991
D.W. Kolpin, M. R. Burkart
1991, Open-File Report 91-59
An approach was developed to obtain a consistent, regional distribution of herbicide and nitrate data from near-surface aquifers in the corn and soybean producing region of the mid-continent. Near-surface aquifers are defined as those with the top of aquifer material within 50 feet of land surface, regardless of whether the...
Tributary-stream infiltration in Marsh Creek Valley, north-central Pennsylvania
John H. Williams
1991, Water-Resources Investigations Report 90-4052
The geohydrology of infiltration from five tributary streams along a 3.6-mile reach of Marsh Creek valley in north-central Pennsylvania was investigated during 1983-85. Marsh Creek valley is underlain by up to 100 feet of stratified drift that overlies Devonian bedrock. The stratified drift is overlain by up to 30 feet...
US Geological Survey National Computer Technology Meeting; Proceedings, Phoenix, Arizona, November 14-18, 1988
Barbara H. Balthrop, J. E. Terry, editor(s)
1991, Water-Resources Investigations Report 90-4162
The U.S. Geological Survey National Computer Technology Meetings (NCTM) are sponsored by the Water Resources Division and provide a forum for the presentation of technical papers and the sharing of ideas or experiences related to computer technology. This report serves as a proceedings of the meeting held in November, 1988...
Well-construction and hydrogeologic data for observation wells in the vicinity of a low-level radioactive-waste disposal site near Sheffield, Illinois
Lawrence J. Mansue, P.C. Mills
1991, Open-File Report 90-382
The U.S. Geological Survey conducted hydrogeologic studies at the low-level radioactive-waste disposal site near Sheffield, Illinois, from 1976 through 1987. During that period, 108 observation wells were installed in the vicinity of the disposal site in glacial and post-glacial deposits of Quaternary age and bedrock of Pennsylvanian age. Data in...
The computer program estimate trend (ESTREND), a system for the detection of trends in water-quality data
Terry L. Schertz, Richard B. Alexander, Dane J. Ohe
1991, Water-Resources Investigations Report 91-4040
Computerized statistical and graphical procedures were developed for use in U.S. Geological Survey (USGS) investigations of trend in stream water-quality data. These procedures, identified as EStimate TREND (ESTREND), are described in this paper to assist USGS investigators involved in multiple-station studies of water-quality trends. Additional discussion focuses on certain statistical...