Field Demonstration of Two Pneumatic Backfilling Technologies (open access)

Field Demonstration of Two Pneumatic Backfilling Technologies

Abstract: This U.S. Bureau of Mines (USBM) report summarizes a field demonstration of pneumatic backfiling technologies conducted at the abandoned Hillside Coal and Iron Slope in Vandling, PA. Researchers demonstrated tro pneumatic backfilling technologies recently developed under the USBM's Abandoned Mine Reclamation Research Program, the Pneumatic Pipefeeder and the High-Efficiency Ejector. Both systems had previously been evaluated at the USBM's subsidence abatement investigation laboratory near Fairchance, PA. The objective of the demonstration was to fill 100% of the abandoned tunnel with backfill stone to prevent further subsidence. The Pneumatic Pipefeeder was used for 21 days, at a rate of 63 to 124 t/d (69 to 136 st/d), to fill 88% of the tunnel. The High-Efficiency Ejector was used for 2 days, at a rate of 125 to 132 t/d (138 to 146 st/d) to fill the remaining 12% of the tunnel. The backfill placed by both systems was tightly compacted. The major problem encountered was wear on the polyethylene pipeline from the abrasion of the high-velocity backfill. The use of heavier steel pipe minimized the problem. A cost analysis for the entire project is given.
Date: 1995
Creator: Dyni, Robert C.; Burnett, Mackenzie & Philbin, David
Object Type: Report
System: The UNT Digital Library

Appendix B: Arrival Time Data

"This appendix contains phase arrival information for local and near-regional events which have been well recorded by the Anna Seismic Network." (p. B1)
Date: February 1990
Creator: Young, C. J.; Lay, T. & Jacobson, Willard J.
Object Type: Dataset
System: The UNT Digital Library
Effects of Ancient Stream Channel Deposits on Mine Roof Stability: A Case Study (open access)

Effects of Ancient Stream Channel Deposits on Mine Roof Stability: A Case Study

Report issued by the Bureau of Mines over studies conducted on mine roof stability. Mining methods to improve roof stability are discussed. This report includes tables, maps, illustrations, and photographs.
Date: 1987
Creator: Ingram, David K. & Chase, Frank E.
Object Type: Report
System: The UNT Digital Library
The Citrate Process for Flue Gas Desulfurization (open access)

The Citrate Process for Flue Gas Desulfurization

From Abstract: "This bulletin describes the citrate process and give results of the laboratory, pilot plant, and demonstration plant studies, as well as corrosion investigations."
Date: 1985
Creator: Nissen, W. I.; Crocker, L.; Oden, L. L.; Martin, D. A. & Asai, G.
Object Type: Report
System: The UNT Digital Library
Reducing Hazards in Underground Coal Mines Through the Recognition and Delineation of Coalbed Discontinuities Caused by Ancient Channel Processes (open access)

Reducing Hazards in Underground Coal Mines Through the Recognition and Delineation of Coalbed Discontinuities Caused by Ancient Channel Processes

Report issued by the Bureau of Mines over the reduction of underground mining hazards. Coal bed discontinuities are discussed. This report includes tables, maps, and illustrations.
Date: 1985
Creator: Kertis, Carla A.
Object Type: Report
System: The UNT Digital Library
Water-Quality Assessment of Francis E. Walter Reservoir, Luzerne and Carbon Counties, Pennsylvania (open access)

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

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.
Object Type: Report
System: The UNT Digital Library
Effect of Urbanization on the Water Resources of Warminster Township, Bucks County, Pennsylvania (open access)

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

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.
Object Type: Report
System: The UNT Digital Library
Effects of Specific Land Uses on Nonpoint Sources of Suspended Sediment, Nutrients, and Herbicides - Pequea Creek Basin, Pennsylvania 1979-80 (open access)

Effects of Specific Land Uses on Nonpoint Sources of Suspended Sediment, Nutrients, and Herbicides - Pequea Creek Basin, Pennsylvania 1979-80

From abstract: The purpose of this intensive watershed investigation was to determine the effects of various land uses on water quality of receiving streams.
Date: 1983
Creator: Lietman, Patricia L.; Ward, Janice R. & Behrendt, T. E.
Object Type: Report
System: The UNT Digital Library
Evaluation of the Streamflow-Data Program in Pennsylvania (open access)

Evaluation of the Streamflow-Data Program in Pennsylvania

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, …
Date: December 1982
Creator: Flippo, Herbert N., Jr.
Object Type: Report
System: The UNT Digital Library
National Uranium Resource Evaluation: Harrisburg Quadrangle, Pennsylvania (open access)

National Uranium Resource Evaluation: Harrisburg Quadrangle, Pennsylvania

Results of reconnaissance surveys of the Harrisburg quadrangle to determine the likelihood of uranium deposits of the area, and additional information about the location and classification of any deposits.
Date: August 1982
Creator: Popper, George H. P.
Object Type: Report
System: The UNT Digital Library

National Uranium Resource Evaluation: Harrisburg Quadrangle, Pennsylvania: Appendix A: Uranium Occurrences

Discussing uranium occurrences in the Harrisburg Quadrangle
Date: August 1982
Creator: Popper, George H. P.
Object Type: Dataset
System: The UNT Digital Library

National Uranium Resource Evaluation: Harrisburg Quadrangle, Pennsylvania: Appendix B: Table of Chemical Analysis

Discussing the chemical analysis of the Harrisburg Quadrangle
Date: August 1982
Creator: Popper, George H. P.
Object Type: Dataset
System: The UNT Digital Library
National Uranium Resource Evaluation: Harrisburg Quadrangle, Pennsylvania: Appendix C: Uranium Occurrence Report (open access)

National Uranium Resource Evaluation: Harrisburg Quadrangle, Pennsylvania: Appendix C: Uranium Occurrence Report

Discussing the occurrence of uranium in the Harrisburg Quadrangle
Date: August 1982
Creator: Popper, George H. P.
Object Type: Report
System: The UNT Digital Library
National Uranium Resource Evaluation: Williamsport Quadrangle, Pennsylvania and New York (open access)

National Uranium Resource Evaluation: Williamsport Quadrangle, Pennsylvania and New York

Results of reconnaissance surveys of the Williamsport quadrangle to determine the likelihood of uranium deposits of the area, and additional information about the location and classification of any deposits.
Date: July 1982
Creator: Roe, Leon M. & Martin, Thomas S.
Object Type: Report
System: The UNT Digital Library

National Uranium Resource Evaluation: Williamsport Quadrangle, Pennsylvania and New York: Appendix A: Uranium Occurrences

Discussing uranium occurrences in the Williamsport Quadrangle
Date: July 1982
Creator: Martin, Thomas S.
Object Type: Dataset
System: The UNT Digital Library

National Uranium Resource Evaluation: Williamsport Quadrangle, Pennsylvania and New York: Appendix B: Table of Chemical Analyses

Discussing chemical analyses from the Williamsport Quadrangle
Date: July 1982
Creator: Martin, Thomas S.
Object Type: Dataset
System: The UNT Digital Library
National Uranium Resource Evaluation: Williamsport Quadrangle, Pennsylvania and New York: Appendix C: Uranium-Occurrence Report (open access)

National Uranium Resource Evaluation: Williamsport Quadrangle, Pennsylvania and New York: Appendix C: Uranium-Occurrence Report

Discussing occurrences of uranium in the Williamsport Quadrangle
Date: July 1982
Creator: Martin, Thomas S.
Object Type: Report
System: The UNT Digital Library

National Uranium Resource Evaluation: Williamsport Quadrangle, Pennsylvania and New York: Appendix E: Test Wells

Discussing test wells from the Williamsport Quadrangle
Date: July 1982
Creator: Martin, Thomas S.
Object Type: Dataset
System: The UNT Digital Library
Chemical-Quality Reconnaissance of the Water and Surficial Bed Material in the Delaware River Estuary and Adjacent New Jersey Tributaries, 1980-81 (open access)

Chemical-Quality Reconnaissance of the Water and Surficial Bed Material in the Delaware River Estuary and Adjacent New Jersey Tributaries, 1980-81

From abstract: This report presents chemical-quality data collected from May 1980 to January 1981 at several locations within the Delaware River estuary and selected New Jersey tributaries.
Date: June 1982
Creator: Hochreiter, Joseph J., Jr.
Object Type: Report
System: The UNT Digital Library
Uranium Favorability of Nonmarine and Marginal-Marine Strata of Late Precambrian and Paleozoic Age in Ohio, Pennsylvania, New Jersey, and New York (open access)

Uranium Favorability of Nonmarine and Marginal-Marine Strata of Late Precambrian and Paleozoic Age in Ohio, Pennsylvania, New Jersey, and New York

"This report was prepared in fulfillment of the U.S. Atomic Energy Commission Contract No. AT(05-1)-1623 to the University of North Carolina during the Period May 1973 through September 1981."
Date: June 1982
Creator: Dennison, John M.
Object Type: Report
System: The UNT Digital Library

[Uranium Resource Evaluation Program Reports at the Savannah River Laboratory: Scranton SED Plots]

Data reports for job control programs (JCL) that drive the statistical analysis system (SAS) and FORTRAN programs to produce the modified Candian symbol plot maps, frequency plots, and histograms for ground waters all on one microfiche. "The [job control program] JCL calls programs which read, scrub where necessary, and format up to six data sets which might comprise the tabular output for a single quadrangle." - from page 9 of report
Date: May 1982
Creator: Cook, James R. & Fay, William M.
Object Type: Dataset
System: The UNT Digital Library
Data Report: Pennsylvania, New Jersey, and New York (open access)

Data Report: Pennsylvania, New Jersey, and New York

This report presents the results of ground water, stream water, and stream sediment reconnaissance in Pennsylvania, New Jersey, and New York.
Date: February 1982
Creator: Cook, James R.; Fay, William M. & Sargent, Kenneth A.
Object Type: Report
System: The UNT Digital Library

[Field and Analytical Data for Pennsylvania Site Samples]

Tabulated data presenting the results of field measurements and elemental analyses for ground water, stream water, and stream sediment samples taken from data collection sites in the state of Pennsylvania. Neutron activation analyses are given for U, Br, Cl, F, Mn, Na, Al, V, and Dy in ground water and stream water, and for U, Th, Hf, Ce, Fe, Mn, Na, Sc, -Ti, V, Al, Dy, Eu, La, Sm, Yb, and Lu in sediments (see pages 29-41 of report).
Date: February 1982
Creator: Savannah River Laboratory
Object Type: Dataset
System: The UNT Digital Library

Pennsylvania Sediment Lab Data

Tabulated data presenting the results of elemental analyses for stream sediment samples taken from 4499 data collection sites in the state of Pennsylvania. Results of Oak Ridge National Laboratory's Elemental Determination-Methods and Detection Limits are given in ppm (see pages 41-42 of report).
Date: February 1982
Creator: Oak Ridge National Laboratory
Object Type: Dataset
System: The UNT Digital Library