Technical Report Archive and Image Library (TRAIL) - 210 Matching Results

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The Ancient Volcanic Rocks of South Mountain, Pennsylvania

Description: From introduction: In December, 1892, as the result of field work on the part of Dr. G. H. Williams in the northern and of the writer in the southern portion of South Mountain, there appeared a preliminary description of two of the rock types, in which their identification as ancient volcanics was announced. In this bulletin it is proposed to substantiate that identification with more detailed proof. It is further proposed to show that these ancient igneous rocks were, at the time of their consolidation, identical in character with their recent volcanic analogues, and that their present differences are due to subsequent changes, chief among which has been devitrification. It is also proposed to recognize these facts in the nomenclature.
Date: 1896
Creator: Bascom, Florence
Partner: UNT Libraries Government Documents Department

The Devonian System of Eastern Pennsylvania and New York

Description: Introduction: By way of introduction a section will be described across the Devonian of the northeastern part of Monroe County, Pa., along the line of Brodhead Creek and the Delaware, Lackawanna and Western Railroad. The base of this section will rest on the Corniferous limestone well exposed in a railroad cut a mile south of East Stroudsburg and the termination will b6 in the Pocono, as exposed on the Pocono Mountains, from Mount Pocono to the ridge northwest of Tobyhanna.
Date: 1894
Creator: Prosser, Charles S.
Partner: UNT Libraries Government Documents Department

The Cambrian Rocks of Pennsylvania

Description: From introduction: In his report on the Geology of Pennsylvania,' Professor Lesley summarizes his opinion upon the geology of the South Mountains and Formation No. 1. In this, Formation No. 1 is referred to the Upper Cambrian, and a detailed description is given of its occurrence along the South Mountains and across the State to the Delaware. The superjacent limestone, No. 2, is referred to the Ordovician.' Fuller reference will be made to Professor Lesley's descriptions in speaking of the rocks of York County.
Date: 1896
Creator: Walcott, Charles Doolittle
Partner: UNT Libraries Government Documents Department

Method and Cost of Mining the Thick Freeport Coal in a Second Western Pennsylvania Mine

Description: From introduction: The purpose of this paper is to present a detailed description of the methods employed and the equipment used, with the results obtained in the operation of this mine in the thick Freeport bed on the northern end of the field, near the Alleghegny-Butler county line in western Pennsylvania. It may be classed as a captive mine, as the largest portion of the product is consumed at the by-product plants of the parent company
Date: July 1929
Creator: Paul, James Washington & Tomlinson, H.
Partner: UNT Libraries Government Documents Department

Occurrence of Pesticide Residues in Four Streams Draining Different Land-Use Areas in Pennsylvania

Description: From introduction: This study was conducted to determine the relative degree of pesticide contamination in four small drainage basins and to determine if pesticide residues were present in amounts that could be hazardous to humans or detrimental to aquatic life.
Date: June 1975
Creator: Truhlar, John F. & Reed, Lloyd A.
Partner: UNT Libraries Government Documents Department

Effect of Urbanization on the Water Resources of Warminster Township, Bucks County, Pennsylvania

Description: Purpose: This investigation by the U.S. Geological Survey, in cooperation with the Warminster Municipal Authority, has three purposes: (1) to determine how urbanization has affected ground water and low streamflow in Warminster Township and parts of the surrounding municipalities; (2) to describe the hydrologic system; and (3) to assess the availability of ground water.
Date: January 1983
Creator: Sloto, Ronald A. & Davis, Drew K.
Partner: UNT Libraries Government Documents Department

Development of a Digital Model of Ground-Water Flow in Deeply Weathered Crystalline Rock, Chester County, Pennsylvania

Description: The model discussed in this report simulates recharge to, flow through, and discharge from the water-table aquifer representative of most of Chester County, Pennsylvania. It includes maps and graphs.
Date: August 1980
Creator: McGreevy, Laurence J. & Sloto, Ronald A.
Partner: UNT Libraries Government Documents Department

Technical Manual For Estimating Low-Flow Frequency Characteristics of Streams in the Susquehanna River Basin

Description: Abstract: This report presents procedures for estimating low-flow frequency characteristics for streams in the Susquehanna River basin. The techniques can be used at ungaged sites as well as sites where insufficient data are available to make a reliable estimate. Streams have been divided into two types major and minor. Major streams are the Susquehanna, West Branch Susquehanna, Juniata, and Chemung Rivers. Points on these streams with drainage areas of more than 2,000 square miles (5,180 kilometers) are included in this category. Points on these streams with drainage areas of less than 2,000 square miles fall into the minor stream category. Generally minor streams are herein defined as those draining less than 2,000 square miles (5,180 kilometers). Multiple-regression techniques have been used to develop relations for estimating the 1-, 3-, 7-, 30-, and 183-day duration low flows at recurrence intervals of 10, 20, 50 and 100 years for annual series data and the 1-, 3-, 7-, and 30-day duration low flows, at the same recurrence intervals, for six individual months, May through October, inclusive.
Date: June 1976
Creator: Armbruster, Jeffrey T.
Partner: UNT Libraries Government Documents Department

Water-Quality Assessment of Francis E. Walter Reservoir, Luzerne and Carbon Counties, Pennsylvania

Description: Objectives and scope: The principal objectives of this study were to assess the past and current water quality of the impoundment, its major tributaries, and its discharge, and to address the environmental impact of raised pool levels. Data collection was directed toward documenting the temporal and spatial variations in physical, chemical, and biological characteristics of the water, to estimate annual nutrient and suspended sediment loading, and to determine the algal biomass, dominant genera, algal growth potential, and limiting nutrient.
Date: June 1983
Creator: Barker, James L.
Partner: UNT Libraries Government Documents Department

Sedimentation in the East Branch Mahoning Creek Basin, Clearfield and Jefferson Counties, Pennsylvania, June 1979 to June 1980

Description: From introduction: This report contains the findings of the first full year of data collected as part of a 3-year study to measure sediment discharges in the East Branch Mahoning Creek during installation of erosion and sedimentation controls by the surface miners.
Date: February 1982
Creator: Wetzel, Kim L.
Partner: UNT Libraries Government Documents Department

A Stormwater Management Model for the West Branch Brandwyne Creek, Chester County, Pennsylvania

Description: From introduction: This report describes rainfall-runoff modeling for three subbasins of the West Branch Brandywine Creek basin. Effects of increased runoff from continued urbanization of the basin and of proposed flood-control structures for both the present and projected population are evaluated for the West Branch Brandwyne Creek at Coatesville and Modena and for Sucker Run at State Route 82.
Date: February 1982
Creator: Sloto, Ronald A.
Partner: UNT Libraries Government Documents Department

Sediment Discharge from an Area of Highway Construction, Applemans Run Basin, Columbia County, Pennsylvannia

Description: Report and Geographical Survey. Includes and introduction, data collection, basin description, highway construction, suspended-sediment discharge, information on the flood of June 1972, and a summary with conclusions. Also includes several graphs and tables.
Date: October 1976
Creator: Eckhardt, David A. V.
Partner: UNT Libraries Government Documents Department

Sediment Discharge from Highway Construction Near Port Carbon, Pennsylvannia

Description: This report examines the effects of a highway construction project on suspended-sediment loads, concluding that the construction caused sixteen-thousand tons of sediment to be discharged and produced fifty percent of the total sediment discharge. It contains tables and graphs.
Date: April 1978
Creator: Helm, Robert E.
Partner: UNT Libraries Government Documents Department

Evaluation of the Streamflow-Data Program in Pennsylvania

Description: Abstract: The stream-gaging program in Pennsylvania is subject to budgetary constraints in the next several years. Elimination of those gaging stations that have no current-purpose use and little utility in providing regional flow-characteristic information is the most effective way to reduce costs. The efficient design of a network of gaging stations for obtaining regional information requires knowledge of the information in the data base and an assessment of the potential for improving the accuracy of data-transfer mechanisms. The analytical technique known as Network Analysis for Regional Information is used to assess acquired streamflow information and to evaluate its transferability within previously determined regions of homogenous streamflow characteristics. Regression equations that relate low-, mean-, and flood-flow characteristics to basin parameters are the data-transfer mechanisms used in the evaluation. This analysis showed that only minor improvements in the regression equations can be expected after 20 additional years of data collection at gages in the 1980 program. Transfer mechanisms with less model error are needed for improved data transferability. A more efficient program can be achieved by discontinuing selected gages in the planning-and-design network. To this end, 11 continuous-record and 25 partial-record gages were selected to be discontinued by April 1, 1980. Additionally, 6 continuous-record and 29 partial-record gages are suggested to be discontinued at the end of the 1985 water year.
Date: December 1982
Creator: Flippo, Herbert N., Jr.
Partner: UNT Libraries Government Documents Department

Regional Stochastic Generation of Streamflows using an Arima (1, 0, 1) Process and Disaggregation

Description: From abstract: An ARIMA (1, 0, 1) model is used to generate annual flow sequence at three sites in the Juniata River basin, Pennsylvania. The study was designed to analyze low-flow frequency characteristics of a basin. The model preserves the mean, variance, and cross-correlations of the observed station data.
Date: May 1979
Creator: Armbuster, Jeffrey T.
Partner: UNT Libraries Government Documents Department

Selected Water Resources Data, Clarion River and Redbank Creek Basins, Northwestern Pennsylvania--Part 2

Description: Abstract: This report presents selected basic data collected during a study of the water resources of the Clarion River and Redbank Creek basins in northwestern Pennsylvania. Hydrologic information including data on aquifers, water levels, and yields is presented for 1,304 wells. Records for 51 springs are also given. The report contains 83 chemical analyses of water samples collected from 30 stream sites and 300 analyses of water from 196 wells and 43 springs. Also included are 103 trace-elements analyses. Monthly and annual means of ground-water levels for six observation wells are tabulated. Benthic invertebrate data from 136 stream sites are listed. Locations of data-collection sites are shown on 50 page-size reductions of 7.5-minute topographic quadrangle maps.
Date: July 1979
Creator: Buckwalter, Theodore F.; Dodge, Clifford H. & Schiner, George R.
Partner: UNT Libraries Government Documents Department

Ground-Water Resources of Chester County, Pennsylvania

Description: From purpose and scope: This report provides basic information on the ground-water resources of Chester County, Pennsylvania, which is an area of about 760 square miles (1970 meters) in southeastern Pennsylvania. It discusses the availability and quality of the water in the water-bearing units in the county and the relation of the ground water to surface water.
Date: September 1977
Creator: McGreevy, Laurence J. & Sloto, Ronald A.
Partner: UNT Libraries Government Documents Department

Stream Reconnaissance for Nutrients and Other Water-Quality Parameters, Greater Pittsburgh Region, Pennsylvania

Description: Abstract: Eighty-five stream sites in and near the six-county Greater Pittsburgh Region were sampled in mid-June 1971 and again in mid-October 1972. Concentrations of inorganic nitrogen, organic carbon, or phosphorus were high enough to indicate potential problems at about a quarter of the sampling sites. Temperature, dissolved oxygen, and pH values indicated a generally favorable capacity for recovery from degradation, although a number of streams east of the Allegheny and Monongahela Rivers are marginal or lacking. Regionally, sulfate is the dominant ion and was observed in concentrations of 40 milligrams per liter or more at 90 percent of the sites. Bicarbonate exceeded 100 milligrams per liter at 22 sites. A moderate to high degree of mineralization is indicated by conductance readings of more than 500 micromhos per centimeter at half of the sampling sites.
Date: February 1975
Creator: Beall, Robert M.
Partner: UNT Libraries Government Documents Department

Flow Routing in the Susquehanna River Basin: Part II - Low-Flow Frequency Characteristics of the Susquehanna River Between Waverly, New York and Sunbury, Pennsylvania

Description: From introduction: The primary objective of this study, second in the series, is the development, calibration, and verification of flow-routing models for the Susquehanna River from Waverly, New York, to Sunbury, Pennsylvania. These models will permit SRBC to estimate the effects of water-resource developments upstream from Waverly at six locations on the Susquehanna River. They were also used to simulate for existing conditions at two ungaged sites.
Date: June 1979
Creator: Bingham, Donald L.
Partner: UNT Libraries Government Documents Department