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    integrity assessment

    Detecting Structural Components and Seepage Zones at Eagle Mountain Dam Using Geophysics

    Publisher – Zonge, 2010. Presented at ASDSO 2010, Seattle, Washington Authors – Phil Sirles, Justin Rittgers, Zonge International, Denver, Colorado; Louis Verreault, Tarrant County Regional Water District, Ft. Worth, Texas; Mark Thomas, Hugh Kelly, PB America, Baltimore, Maryland Slide presentation – [pdf] Sirles_ASDSO_2010_EagleMtDam&Spillway

    Sewer Sinkhole Study Using TEM

    Publisher – Society of Exploration Geophysicists, The Leading Edge, March 2006. Authors – Norman R. Carlson*, Scott A. Urquhart*, Zonge Engineering and Research Organization, Tucson, Arizona, U.S.A. Article – [pdf] INFR_LeadingEdge-SinkholePaper Slide presentation – [pdf] sewer intregrity survey TEM system Summary