McCallum Rock Drilling

Two powerhouses beginning at sunrise to pump out hundreds of holes for blasting utilities for a new housing development.💥

We're seeking a Class A CDL Lowboy Driver, based out of Chehalis, WA, to join our team. This position will be responsible for transporting various types of heavy equipment to company job sites throughout the Northwest. Must have an active DOT Medical Card, a clean driving record, and will be expected to pass a pre-employment drug test. Click here to learn more and to apply online!

Lowboy Driver McCallum Rock Drilling (MRD) is a rock drilling and blasting contractor based out of Chehalis, WA, that has been in business since 1988. MRD operates in commercial quarries, timberlands and construction sites throughout the Western US. MRD is seeking a full-time Class A CDL Lowboy Driver to operate....

With our HCR 1500 we utilize a 3.5” to 5” drill bit, adjusting based on the pattern and desired powder factor.💥

Mason is replacing a damaged dust collection boot to ensure the dust collector functions properly and maintains a safe work environment for the driller and nearby workers.

Our HCR1800 punching out hundreds of holes at this future landfill.💥

As we near project completion at this landfill site we’ve got two drill rigs, our HCR1800 and L110, working hard to ensure we stay on schedule.💥

With our HCR1500 drill we utilize a 3.5” to 5” bit, based on the pattern and desired powder factor to achieve optimal results.

Are you skilled with a drone and a whiz at 3D modeling software? If so, consider joining our team! We are now hiring Blasting Technicians for both our Chehalis, WA and Salem, OR locations. This position spends most of their time on the road visiting numerous surface mines throughout the Pacific Northwest. Check out our Careers site to learn more and to apply online:

Careers - McCallum Rock Drilling McCallum Rock Drilling is the West's premier drilling and blasting company. Learn more on our "Careers" page.

We drill 3.5 to 4.5 inch holes with precision with the Furukawa HCRL90 drill. It navigates rough terrain easily due to its compact size and on-the-fly adjustability.

We're hiring a Part-Time Accounts Payable Specialist to join our team at our headquarters in Chehalis, WA. Click here to learn more and to apply!

Accounts Payable Specialist (PT) McCallum Rock Drilling (MRD) is a rock drilling and blasting contractor based out of Chehalis, WA, that has been in business since 1988. MRD operates in commercial quarries, surface mines, timberlands and construction sites throughout the Western US. We are currently hiring for a part time Accounts....

This flagship emulsion truck, built from scratch in our Chehalis, WA headquarters, features triple axle super singles and can hold approximately 24,000 pounds of emulsion. This is one of many powder trucks in our fleet.

Bentonite turns into a plaster-like substance when mixed with water. It reinforces holes and collars, preventing caving or bridging, and is water-resistant, ideal for drilling in wet conditions.

Now Hiring Drilling Apprentices to join our team in Spokane, WA! This entry level position is ideal for those looking to get into construction, with on-the-job training and opportunities for advancement. Pay is $21-$23 per hour DOE. Visit this link to learn more and to apply online! https://mccallumrock.bamboohr.com/careers/44

We’ve said it before and we’ll say it again, our blasts are only as good as the holes that are drilled. Shout out to our drillers for setting us up for success, one hole at a time.💥

Kurt Miller the Driller has been with us at MRD for over 32 years. His manager says, “Kurt is a hard worker, loyal, and someone I am proud to call a friend. He is the first one in and the last one out. There isn’t a thing when it comes to drilling that surprises Kurt. He has seen it all and knows how to roll with the punches.” Kurt is humble, kind, and has a wicked sense of humor that keeps us on our toes. Thank you Kurt for your dedication to MRD!

Mason getting it done in the rock quarry!💥

Mornings like these in the rock quarry 🙌🏼 Today we’re completing drone missions to gather data for designing our drilling and blasting plans.

Our emulsion product at McCallum Powder is completely waterproof. It displaces water in the borehole giving us solid, consistent loads of explosives minus any water pockets. In the wet Pacific Northwest this gives us a huge advantage over ANFO because it means we don’t have to worry about the weather to execute our blasting operations.

Also - can you spot the Furukawa DCR 20 ?

We’re happy to have driller Tim Foster’s smiling face on the team! Our drillers grease their drills daily as part of their maintenance schedule to keep everything running smoothly.

Timing the detonators allows our blasters to have total control of when any given hole on the bench detonates. Blaster-in-Charge Tyler and Blaster Foreman Marty are shown here setting up the timing to ensure we get the most of out every hole.💥

Meet Enrique, an emulsion truck driver for McCallum Powder who’s been with us for over 2.5 years. His manager says he is “a solid powder operator who is always willing to go the extra mile for the company. He communicates perfectly with everyone around him. It’s a true privilege to work with him.” Thank you for your hard work and dedication, Enrique!

When our holes are ready to be loaded, our custom-designed pump trucks roll in with their computer controlled distribution systems. They allow us to pump the emulsion materials at specific ratios out through a hose and down into the boreholes, which allows us to seamlessly control every aspect of the blast.

After we boretrack the face, 3D and 2D profiles are sent to the Blaster-in-Charge. We then upload that data into our McCallum Rock profiling app for the blaster to use on shot day to load the face accordingly. BIC Jeremy is shown here getting it done!

Our BIC (Blaster in Charge) Jeremy is in charge of many things, most importantly ensuring a safe and controlled blast. In order to do that he must divide certain responsibilities to his crew. Here he’s letting Jose know how much emulsion to load into each hole to ensure a successful blast.

McCallum Powder’s emulsion product is an ammonium nitrate solution mechanically mixed with other raw materials by a computer-controlled system onboard a delivery vehicle at the job site. These pump trucks are built on-site at our Chehalis, WA headquarters.