Aggregate Quality Control Technician
Listed on 2026-09-22
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Quality Assurance - QA/QC
Quality Control - QC Analysts/Managers, Production QC/QA
H.L. Zumwalt Quarry Operations is part of H.L. Zumwalt Construction, a family owned Texas company that has served the region since 1968. Our quarry division, established in 2022, was created to deliver high quality, reliable aggregate materials for construction across Central and South Texas.
We supply asphalt plants, ready mix producers, utility contractors, ranchers, and customers needing durable materials for roads, infrastructure, and landscaping. As a family run operation, we continue Henry Zumwalt’s legacy of quality, dependability, and long term commitment to the communities we serve.
OverviewJoin our dynamic team as an Aggregate Quality Control Technician and play a vital role in performing daily aggregate testing for our quarry. Responsibilities include sampling, gradation testing, moisture analysis, equipment calibration, and maintaining compliance with ASTM, AASHTO, and TXDOT standards.
Responsibilities- Collect and test aggregate, sand, and stone samples
- Perform lab/field tests and record results
- Work with accredited labs for verification testing
- 5 years QC/QA lab experience
- Proficiency in Microsoft Office
- Ability to lift 50 lbs and work outdoors
Embark on a rewarding career where your expertise directly contributes to building safer infrastructure!
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