Publications

Nitrogen in the Chesapeake Bay Watershed - A Century of Change, 1950–2050

National Award for Superior Communication Product

Domestic Well Water Quality in Marcellus Shale Region

Factors Affecting Groundwater Quality Used for Domestic Supply in Marcellus Shale Region of North-Central and North-East Pennsylvania

Geohydrologic and water-quality characterization of a fractured-bedrock test hole in an area of Marcellus Shale gas development, Sullivan County, Pennsylvania

Report at Pennsylvania Geological Survey

Publications are the cornerstone of the Pennsylvania Water Science Center’s dissemination of scientific data and conclusions.

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January 1, 1990

Apparent dispersion in transient groundwater flow Apparent dispersion in transient groundwater flow

This paper investigates the effects of large-scale temporal velocity fluctuations, particularly changes in the direction of flow, on solute spreading in a two-dimensional aquifer. Relations for apparent longitudinal and transverse dispersivity are developed through an analytical solution for dispersion in a fluctuating, quasi-steady uniform flow field, in which storativity is zero. For...

Authors

Daniel J. Goode, Leonard F. Konikow

Water Resources Mission Area, Pennsylvania Water Science Center

January 1, 1990

National water summary 1987: Hydrologic events and water supply and use National water summary 1987: Hydrologic events and water supply and use

Water use in the United States, as measured by freshwater withdrawals in 1985, averaged 338,000 Mgal/d (million gallons per day), which is enough water to cover the 48 conterminous States to a depth of about 2.4 inches. Only 92,300 Mgal/d, or 27.3 percent of the water withdrawn, was consumptive use and thus lost to immediate further use; the remainder of the withdrawals (72.7 percent)...

Water Resources Mission Area, Water Availability and Use Science Program, Central Midwest Water Science Center, Dakota Water Science Center, Pennsylvania Water Science Center, Oklahoma-Texas Water Science Center, Utah Water Science Center, Upper Midwest Environmental Sciences Center, Upper Midwest Water Science Center, Central Plains Water Science Center

January 1, 1990

Base-flow-frequency characteristics of selected Pennsylvania streams Base-flow-frequency characteristics of selected Pennsylvania streams

Streamflow hydrographs of 309 streamflow stations in Pennsylvania were analyzed by using three computer-assisted empirical methods--local-minimum , fixed-interval, and sliding-interval--to separate the ground-water and surface-runoff components. The 2-, 5-, 10-, and 25-year base-flow-recurrence intervals were determined for each station. The 50- and 100-year recurrence intervals were...

Authors

K. E. White, R. A. Sloto

Water Resources Mission Area, Pennsylvania Water Science Center

January 1, 1990

Geohydrology and simulation of ground-water flow in the carbonate rocks of the Valley Creek basin, eastern Chester County, Pennsylvania Geohydrology and simulation of ground-water flow in the carbonate rocks of the Valley Creek basin, eastern Chester County, Pennsylvania

Sixty-eight percent of the 22.6-square-mile Valley Creek basin is underlain by Cambrian and Ordovician limestone and dolomite. Ground water flows through a network of interconnected secondary openings; primary porosity is virtually nonexistent. Some of these openings have been enlarged by solution. Secondary porosity and permeability exhibit great spatial variability, and the yield and...

Authors

R. A. Sloto

Water Resources Mission Area, Chesapeake Bay Activities, Pennsylvania Water Science Center

January 1, 1990

Technique for estimating depths of 100-year floods in Pennsylvania Technique for estimating depths of 100-year floods in Pennsylvania

Techniques are developed for estimating 100-year flood depths in natural channels of unregulated Pennsylvania streams that drain less than 2,200 square miles. Equations and graphs are presented relating the depth of the 100-year flood above median stage and drainage area in five defined hydrologic areas in the State. Another graph defines the relation between drainage area and median...

Authors

Herbert N. Flippo

Water Resources Mission Area, Pennsylvania Water Science Center

January 1, 1990

Effects of acidic precipitation on the water quality of streams in the Laurel Hill area, Somerset County, Pennsylvania, 1983-86 Effects of acidic precipitation on the water quality of streams in the Laurel Hill area, Somerset County, Pennsylvania, 1983-86

Five headwater streams in the Laurel Hill area in southwestern Pennsylvania were investigated from September 1983 through February 1986 to determine possible effects of acidic precipitation on water quality. Precipitation in the Laurel Hill area is among the most acidic in the Nation, with a mean volume-weighted pH of 4.06. Sulfate is the dominant acid-forming anion, averaging 3.6...

Authors

J. L. Barker, E. C. Witt

Water Resources Mission Area, Pennsylvania Water Science Center

January 1, 1989

Water quality data for precipitation and storm runoff in Pennypack Creek Basin, Philadelphia, Pennsylvania Water quality data for precipitation and storm runoff in Pennypack Creek Basin, Philadelphia, Pennsylvania

This report presents data on the chemistry of precipitation and storm runoff that were collected during 29 storms from July 1979 through November 1980, in an urban environment in the Pennypack Creek basin, Philadelphia, Pennsylvania. Daily mean and instantaneous stream discharge data were collected at two U.S. Geological Survey gaging stations. Water-quality data collected from these...

Authors

D.W. Speight

Water Resources Mission Area, Pennsylvania Water Science Center

January 1, 1989

Water-resources activities of the U.S. Geological Survey in Pennsylvania, 1988-89 Water-resources activities of the U.S. Geological Survey in Pennsylvania, 1988-89

As part of the U.S. Geological Survey Water Resources Division 's objective of presenting impartial, accurate data and scientific analyses equally to all interested parties, current activities in Pennsylvania are described by a listing of project location, cooperator(s), period of project, project chief, headquarters office, problem, objective, approach, progress and plans. The basic...

Authors

Robert E. Helm

Water Resources Mission Area, Pennsylvania Water Science Center

January 1, 1989

Water Resources Data for Pennsylvania, Water Year 1988. Volume 1: Delaware River Basin Water Resources Data for Pennsylvania, Water Year 1988. Volume 1: Delaware River Basin

No abstract available.

Authors

J.R. Kolva, T.E. White, R.L. Druther, K. E. White

Pennsylvania Water Science Center

January 1, 1989

Water resources data for Pennsylvania, water year 1987. Volume 1: Delaware River Basin Water resources data for Pennsylvania, water year 1987. Volume 1: Delaware River Basin

No abstract available.

Authors

J.R. Kolva, T.E. White, R.L. Druther, P. Moleski

Pennsylvania Water Science Center

January 1, 1989

Surface-water quality in the West Branch Susquehanna River basin, Pennsylvania: An appraisal of areal and temporal variability from 1962 to 1982 in hydrologic accounting unit 020502 Surface-water quality in the West Branch Susquehanna River basin, Pennsylvania: An appraisal of areal and temporal variability from 1962 to 1982 in hydrologic accounting unit 020502

The West Branch Susquehanna River basin has a drainage area of 6,955 square miles in north-central Pennsylvania and comprises Hydrologic Accounting Unit 020502. A National Stream Quality Accounting Network (NASQAN) waterquality data collection site, maintained by the U.S. Geological Survey, is located on the river near its mouth at Lewisburg, Pennsylvania. Water-quality data are...

Authors

R.A. Hainly, J.F. Truhlar, K. L. Wetzel

Water Resources Mission Area, Pennsylvania Water Science Center

January 1, 1989

Relation of ground-water quality to land use in the Philadelphia, Pennsylvania-Camden, New Jersey area Relation of ground-water quality to land use in the Philadelphia, Pennsylvania-Camden, New Jersey area

The distributions of common dissolved constituents, trace metals, and volatile organic compounds in ground water near Philadelphia, Pennsylvania, and Camden, New Jersey, are influenced by local geology and land use. Many common dissolved constituents are more concentrated in ground water beneath urban and industrial areas than in water beneath suburban and undeveloped and agricultural...

Authors

Ray S. Blickwedel, C. R. Wood

Water Resources Mission Area, Pennsylvania Water Science Center