- Civil Engineering
- Materials Engineering and Testing
- quality assurance
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Mosaic’s Potash facility in Carlsbad, New Mexico operates one of the largest underground mines in the United States. This location mines two separate potassium minerals: sylvite and langbeinite.
Since 2008, PETTIGREW & ASSOCIATES has provided a range of engineering and surveying services to the Carlsbad facility. Our scope of work has included topographic surveys, establishment of plant site control and monumentation, hydrologic and hydraulic studies for drainage improvements, geotechnical investigations for various improvements, preparation of construction plans for projects including boathouse, security house, change house, 2009 drainage improvements. In addition, we have provided materials testing for quality assurance during construction.