What type of water should be used to wet asbestos-containing materials under Regulation 8?

The correct choice is amended water because it is specifically formulated to assist in the effective wetting of asbestos-containing materials. Amended water contains surfactants or other additives that enhance its ability to penetrate and adhere to these materials, thereby facilitating effective dust control during handling or removal. This is critical in minimizing airborne asbestos fibers, which pose serious health risks.

In asbestos abatement and handling practices, simply using tap water or distilled water may not provide the additional benefits required for safe management. While tap water is readily available and distilled water is pure, neither contains the necessary amendments to ensure thorough wetting and dust suppression of asbestos materials. Thus, the use of amended water is an important safety measure in compliance with regulations aimed at protecting workers and the environment.