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

183944 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 4826, results 120626 - 120650

Show results on a map

Publication Extents

Not all publications have extents, not all extents are completely accurate
Occurrence of nitrate and herbicides in ground water in the upper Conestoga River basin, Pennsylvania : water-quality study of the Conestoga River headwaters, Pennsylvania
David K. Fishel, Patricia L. Lietman
1986, Water-Resources Investigations Report 85-4202
Nitrate-nitrogen and herbicide ground-water data is being collected by the u.s. Geological Survey as part of the nationwide Rural Clean Water Program designed to determine the effects of agricultural-management practices on water quality. Data collected from September 1982 to October 1983 · in the 188-square mile intensively farmed upper Conestoga...
Results of a preimpoundment water-quality study of Swatara Creek, Pennsylvania
David K. Fishel, J.E. Richardson
1986, Water-Resources Investigations Report 85-4023
The water quality of Swatara Creek prior to impoundment by the proposed Swatara Creek Reservoir in south-central Pennsylvania was studied from July 1981 through October 1982. The report, done in cooperation with the Pennsylvania Department of Environmental Resources (PaDER), Bureau of State Parks, presents information on existing water-quality conditions. A...
Method for estimating low-flow characteristics of ungaged streams in Indiana
Leslie D. Arihood, Dale R. Glatfelter
1986, Open-File Report 86-323
Equations for estimating the 7-day, 2-year and 7-day, 10-year low flows at sites on ungaged streams are presented. Regression analysis was used to develop equations relating basin characteristics and low-flow characteristics at 82 gaging stations. Significant basin characteristics in the equations are contributing drainage area and flow-duration ratio, which is...
Analytical results and sample locality map of heavy-mineral-concentrate and rock samples from the Castle Peaks Wilderness Study Area (CDCA- 266), San Bernardino County, California
B. M. Adrian, J. G. Frisken, M.J. Malcolm, J.G. Crock
1986, Open-File Report 86-416
The report presents water-quality and geohydrologic information for 106 public water-supply wells in Illinois. These wells were sampled during April to December 1984 as part of a pilot program to develop a ground-water observation network in the State. The pilot program was designed to sample single-aquifer wells from three major...
Cost-effectiveness of the U.S. Geological Survey stream-gaging program in Indiana
J. A. Stewart, R. L. Miller, G.K. Butch
1986, Water-Resources Investigations Report 85-4343
Analysis of the stream gaging program in Indiana was divided into three phases. The first phase involved collecting information concerning the data need and the funding source for each of the 173 surface water stations in Indiana. The second phase used alternate methods to produce streamflow records at selected sites....
Computer programs for computing particle-size statistics of fluvial sediments
H.H. Stevens, D. W. Hubbell
1986, Water-Resources Investigations Report 86-4141
Two versions of computer programs for inputing data and computing particle-size statistics of fluvial sediments are presented. The FORTRAN 77 language versions are for use on the Prime computer, and the BASIC language versions are for use on microcomputers. The size-statistics program compute Inman, Trask , and Folk statistical parameters...