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Have questions about our services? Find answers to common queries about our process, quality, and safety standards.
Yes—we structure bids to meet WA procurement guidelines and highlight value‑for‑money, capability and risk management (WA Procurement Guidelines).
We combine first‑principles rates with national guidance on base cost, risk and escalation, and present contingency transparently (Infrastructure CEG Guidance Notes 2 & 4).
The WES for respirable crystalline silica is 0.05 mg/m³ (8‑hr TWA). WA also requires air monitoring and notification for high‑risk crystalline silica processes (SWA Silica WES; WorkSafe WA silica/ CSS guidance).
Yes—for tight‑fitting respirators under AS/NZS 1715. Annual re‑testing is best practice, with re‑tests after significant facial changes or mask changes (AS/NZS 1715; Breathe Freely AUS).
If workers are frequently required to wear hearing protection to control noise above the exposure standard, baseline testing within 3 months and at least every two years is required (SWA Noise WHS duties; WorkSafe WA Audiometry requirements).