Sean Mulhall

• Managed surface operations to optimize efficiency and coordinate workflows.
• Conducted stockpile inventory audits to ensure accuracy and accountability.
• Coordinated shipping and receiving processes for trucking and shipping operations.

• Conducted field operations throughout the United States and abroad, ensuring project needs were met.
• Led crews in drilling, rig moving, and daily operations to ensure efficient project execution.
• Removed core samples during drilling to determine nature of strata being drilled.
• Trained crews on drill work procedures and safety protocols to enhance operational compliance.
• Removed core samples during drilling to determine the nature of strata being drilled.
• Worked extensively on the road all over the United States/some international.
• Coordinated multiple projects and tasks to achieve high quality outcomes and meet deadlines.

• Managed daily underground mining operations, directly supporting achievement of tonnage goals.
• Trained employees in various job functions to enhance team versatility and efficiency. to be able to learn and know all aspects of their jobs (Scaling, mucking, bolting, drilling, augering, etc.)).
• Prioritized safety by maintaining compliance with MSHA and mining standards during quarterly inspections.
• Maintain and keep equipment operational to meet a high demand for salt.

• Diagnosed issues with belts, structures, and mechanical parts for all belt lines.
• Identified and resolved mechanical issues to ensure belt line functionality.
• Communicated and generated lists for spare parts needed for utility crew and equipment.
• Prioritized projects for myself and crew based on urgency and resource availability.

Executed core drilling and grouting under Lake Erie to minimize water inflow into the mine, enhancing operational safety. Drilled into high-pressure gas and water, managing risks associated with brine water and hazardous gases at pressures up to 750psi. The use of well heads, shut off valves and a B.O.P. in use on all holes to contain the gas and water. Drilling and setting casing at different zones, 11.75”, 10.75”, 8.75”, ZW, SW, PW to HWT to HQ to NQ and finish out the hole drilling with BQ to target depth. Every void that is encountered producing water and gas is grouted, drilled out and the hole pushed out to casing depth or to target depth in the oriskany. Use of transducers on all well heads to monitor pressure changes. At target depth we typically use Sovereign Grout to try and slow the inflow of water coming into the mine, which is a polymer based grout that sets off with any contact with brine water. In order to not set off too quick in the hole we use an inhibitor. Other jobs given by management also done, Executed mucking operations to remove debris and maintain worksite safety., Conducted scaling to stabilize rock faces and prevent hazards in mining areas., Executed bolting to secure rock formations and protect crew during operations.. Initiated new unit operations and maintained belt lines, ensuring reliable transport of materials through effective management of splices, guarding, overcasts, pulleys, drives, and brattice for ventilation.

• Drilled blast holes in underground salt mine for Cargill Deicing Technology operations.
• Inspected core drilling equipment and reported mechanical issues to maintenance crews.
• Followed mine safety procedures and maintained clean work areas around drilling sites.