Zapata Incorporated

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Our Services

Mining

ZAPATA provides comprehensive services from exploration and resource estimation to planning, design, and facilities construction and operations through reclamation and closure. Specific services include: exploration; appraisals; permitting; design/construction of impoundments and necessary infrastructure; reclamation; high resolution geophysical void mapping; remediation; and subsidence investigations and mitigation. ZAPATA provides these services from our locations in the western US and South America.

MSHA Edgar Mine

ZAPATA performed this investigation in support of MSHA’s initiative “Geophysical Void Detection Demonstrations” to advance the current state-of-practice of geophysical technologies for detecting underground mine voids. ZAPATA conducted 2D void imaging using the seismic crosshole tomography (XHT) method at this gold/silver mine. A reinforced shotcrete bulkhead was constructed in the Army Tunnel by CSM’s contractor in order to demonstrate void detection under both air and water filled void conditions.

Abandoned Mine Subsidence Investigation

ZAPATA performed several mine subsidence investigations for DRMS in support of its Inactive Mine Reclamation Program (IMRP). These projects provided invaluable information for DRMS to design and implement a mitigation program. ZAPATA employed a suite of surface and downhole geophysical mapping methods delineating old mine workings beneath the residential area of the CCC.

Image Abandoned Mine Works

ZAPATA performed the investigation in support of MSHA initiative “Geophysical Void Detection Demonstrations” to advance the current state-of-practice of geophysical technologies for detecting underground mine voids. ZAPATA employed several surface and borehole geophysical mapping methods and downhole void scanning/imaging techniques at a known abandoned room and pillar coal mine at a depth of approximately 235 ft. These methods included: 1) surface high-resolution 2D and 3D seismic using P-wave (HRPW) and S-wave (HRSW) reflection; 2) crosshole seismic tomography (XHT); 3) seismic guided waves (GW); 4) reverse vertical seismic profiling (RVSP); and 5) downhole sonar imaging of the flooded mine workings.

Campania Minera Punitaqui

ZAPATA acted as Owner’s Representative and Project Manager for the construction of an earth dam to hold the mine tailings produced by CMP copper mining operations in northern Chile. ZAPATA performed QA/QC, approved change orders and payments, project modifications, and the overall execution of the job. The dam is 123 feet high, 2,000 feet long and 550 feet wide at its base. The structure is lined with a 1.5 millimeter membrane to reduce water infiltration and it will be monitored with ten monitoring wells installed along the dam. Once completed, the dam will be able to hold 3.8 million tons of water and solids.

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