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Data Series 927

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Prepared in cooperation with the U.S. Environmental Protection Agency

Surface Geophysics and Porewater Evaluation at the Lower Darby Creek Area Superfund Site, Philadelphia, Pennsylvania, 2013

By Charles W. Walker, James R. Degnan, Michael J. Brayton, Roberto M. Cruz, and Michelle M. Lorah

Thumbnail of and link to report PDF (2.14 MB)Abstract

In cooperation with the U.S. Environmental Protection Agency (EPA), Region 3, the U.S. Geological Survey (USGS) is participating in an ongoing study to aid in the identification of subsurface heterogeneities that may act as preferential pathways for contaminant transport in and around the Lower Darby Creek Area (LDCA) Superfund Site, Philadelphia Pa. Lower Darby Creek, which flows into the Delaware River, borders the western part of the former landfill site. In 2013, the USGS conducted surface geophysics measurements and stream porewater sampling to provide additional data for EPA’s site characterization. This report contains data collected from field measurements of direct current (DC) resistivity, frequency-domain electromagnetic (FDEM) surveys, and stream porewater specific conductance (SC).

First posted April 14, 2015

For additional information, contact:
Director, MD-DE-DC Water Science Center
U.S. Geological Survey
5522 Research Park Drive
Baltimore, MD 21228
http://md.water.usgs.gov/

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Suggested citation:

Walker, C.W., Degnan, J.R., Brayton, M.J., Cruz, R.M., and Lorah, M.M., 2015, Surface geophysics and porewater evaluation at the Lower Darby Creek Area Superfund Site, Philadelphia, Pennsylvania, 2013: U.S. Geological Survey Data Series 927, 6 p., https://dx.doi.org/10.3133/ds927.

ISSN 2327–638X (online)


Contents

Abstract

Introduction

Methods

Results

References Cited

Appendix 1. Direct-Current Resisitivity Data for Lines 1-8

Appendix 2. Frequency-Domain Electromagnetic Survey Data

Appendix 3. Lower Darby Creek Porewater Specific Conductance Survey Data


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