Quarry Cuts Dust Exposure by 60% with Apt Plan

The Challenge: Silica Dust and High Noise Exposure Put Workers at Risk

A regional quarry operation was under scrutiny after a routine inspection revealed elevated respirable crystalline silica levels and high noise exposure among equipment operators. The quarry lacked a formal exposure control plan and had outdated PPE protocols.

The company faced the risk of MSHA citations, potential health claims, and reduced workforce morale. They needed a fast, effective solution that wouldn’t disrupt production.

Key issues included:

  • Uncontrolled airborne silica from crushers and conveyance points
  • Noise levels exceeding NIOSH recommended exposure limits (RELs)
  • Inconsistent PPE usage and no audiometric program in place
  • Minimal training on dust suppression techniques

Reducing Dust & Noise Exposure at a Quarry Operation

Our Solution: A Measurable Dust and Noise Control Program

Performed full-shift air sampling

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using NIOSH 7500 silica protocols and noise dosimetry per MSHA standards

Recommended PPE upgrades

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including half-face respirators and dual-ear protection

Installed water misting systems

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at primary crusher and conveyor junctions

Trained operators

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on real-time dust suppression strategies and hearing conservation

Established an audiometric testing schedule

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and PPE fit validation process

Created internal inspection templates

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to guide supervisors on daily exposure monitoring

The Results: Safer, Quieter, and Compliant Operations

60% reduction in silica exposure at high-risk areas

MSHA inspection passed with zero violations or corrective actions

Operator PPE compliance rate increased from 40% to 95%

Employee awareness and participation in safety programs improved significantly

Client Feedback

Apt brought clarity and control to a tough environment. Their practical fixes made it easier to stay safe without slowing production.

Quarry Superintendent


Need Help with Dust, Noise, or MSHA Compliance?

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