Final answer:
TLVs by ACGIH are not legally enforceable; they are recommended guidelines. OSHA has the authority to issue binding regulations. EPA enforces Maximum Contaminant Levels for drinking water safety.
Step-by-step explanation:
The statement that Threshold Limit Values (TLVs) set by the American Conference of Government Industrial Hygienists (ACGIH) are the legal limits/standards for chemical exposure in the workplace is false. TLVs are recommended guidelines and are not legally enforceable standards. In contrast, the Occupational Safety and Health Administration (OSHA) has the legislative authority to issue legally binding health and safety regulations.
In the context of water safety, the Environmental Protection Agency (EPA) does set legally enforceable standards known as Maximum Contaminant Levels (MCLs) for various contaminants in drinking water, which are set as close to the Maximum Contaminant Level Goals (MCLGs) as feasible. When a water supplier exceeds an MCL, fines and penalties can be imposed by the EPA.