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Most recent publications.
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Darlington, Ramona; Leo Lehmicke, et. al., 2008.
"Biotic and Abiotic Anaerobic Transformations of Trichloroethene and cis-1,2-Dichloroethene in Fractured Sandstone"
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Waggle, Gregory L. (Hargis + Associates, Inc. [H+A]), Roger A. Niemeyer (H+A), Michael A. Palmer (H+A), 2007.
"Field Screening Methods for the Presence of DNAPL, Superfund Site, southern California"
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Ondic, Danielle (H+A), Roger A. Niemeyer (H+A), and Michael A. Palmer (H+A), 2007.
"Case Study: Pilot Test of Hydraulic Displacement for Reducing Pooled DNAPL Mass, Superfund Site, southern California"
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Leonhart, Leo S., 2007.
"Environmental Forensics: Courting Science?"
Environmental Forensics: Courting Science? by Leo S. Leonhart as published in Southwest Hydrology, Volume 6, Number 4.
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D.A. Toffelmier and J.A. Tyburczy., 2006.
"Electromagnetic detection of a 410-km-deep melt layer in the southwestern United States."
Electromagnetic detection of a 410-km-deep melt layer in the southwestern United States. Published in Nature 447, 991-994 (2007).
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Cranham, G.T., C.G.A. Ross and S.P. Netto, 2007.
"Fold Geometry Model of Coyote Hills Segment of Puente Hills Blind-Thrust System Applied to Interpretation of Long-Term Water Level Data"
American Association of Petroleum Geologists, 2007 AAPG Annual Convention & Exhibition, Long Beach, California; Abstract published in Environmental Geosciences, vol. 16, no. 2, pp. 71-72 (June 2009).
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L. S. LEONHART, D. R. HARGIS, & R. A. GEARHEART, 2006.
"Biological denitrification of contaminated groundwater in a constructed wetland, Arizona, U.S.A."
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Niemeyer, Roger A., Mike A. Palmer, 2006
"Aquifer Storage and Recovery Feasibility Evaluation for a Small Coastal Basin near Del Mar, California"
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Lehmicke, Leo and Paul Johansen, 2005.
"Natural Attenuation: Better Than Groundwater Extraction?"
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White, B., and G.T. Cranham, 2003.
"The Historic Water System of Mission San Diego de Alcalá, San Diego County, California."
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Leonhart, L.S., E.M. Roudebush, M.R. Long, B.A. Scully, B.A. Semmens, 2003.
"Hydrogeology of the Alluvial Aquifer Along the Curtiss Reach of the San Pedro River."
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Nemecek, E.A., 2003.
"Sustainability of Arizona’s Few Remaining Perennial Streams."
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Leonhart, L.S., D.R. Hargis, B.A. Semmens, T.P. Leo, 2003.
"Dynamics of Nitrate & Perchlorate in Groundwater."
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Leonhart, L.S., D.R. Hargis, B.A. Scully, E.M. Roudebush, 2003.
"Groundwater/Surface Water Interactions Along the Curtiss Reach of the San Pedro River."
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Waggle, B.R., L.S. Leonhart, E.M. Roudebush, 2002.
"CERCLA Remedial and Removal Actions at Historic Waste Disposal Areas."
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Leonhart, L.S., D.R. Hargis, A. Forrest, 2002.
"Wet Water v. Paper Water: Water Management Under the 1980 Arizona Groundwater Code."
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Gearheart, R.A., M. Ives, L.S. Leonhart, 2001.
"Start-Up Readiness of the Apache Wetland."
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Maslansky, S.P. and L.S. Leonhart, 2001.
"An Investigation and Remediation of TNT Contaminated Soils."
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Deane, T.C. and W. Ellett, 2000.
"The Use of Shallow High Resolution Seismic Reflection Data To Determine Drilling Locations at the Apache Powder Superfund Site."
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Leonhart, L.S., E.J. Nelson, C.L. Leo, S.P. Maslansky, C. Byrns, K. Alter, 2000.
"A dynamite job? Cleaning up trinitrotoluene waste at the Apache Powder Superfund Site."
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Ross, C.G.A., L.S. Leonhart, J.D. Schwall, D.M. Bresette, 1998.
"Design and Operational Contingency for Remediation of a Low Permeability Stratum."
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Leonhart, L.S., M.C. Coggeshall, C.L. Leo, 1995.
"Remediation of DNT Drum Disposal Area."
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Leonhart, L.S. and D.R. Hargis, 1990.
"The Hydrogeologic Character of Sedimentary Interbeds in Flood Basalts."
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