What treatment technology can be implemented to comply with a volatile organic chemical MCL?

The correct answer is point-of-entry treatment, which effectively addresses volatile organic compounds (VOCs) in drinking water systems. This technology involves installing treatment systems at the point where water enters a building, which allows the entire home or facility to benefit from the treatment. It is especially useful for reducing VOCs that may be present in water supply, ensuring compliance with maximum contaminant levels (MCLs) established for public health.

Point-of-entry systems provide comprehensive treatment by filtering out harmful chemicals before they reach any taps or fixtures. In handling VOCs, such systems can mitigate the effects of contamination throughout the household, thus maintaining water quality over a more extensive area.

While granular activated carbon is also capable of removing VOCs and is commonly used in point-of-use applications, it is less effective when the intent is to treat large volumes for an entire home or building, especially where diverse water sources may be involved.

Point-of-use filtration can be effective for small, localized issues; however, it only treats water at specific taps and does not address water quality for the entire property. Reverse osmosis is another valid method for removing a wide range of contaminants, including some VOCs, but it is typically used for specific applications and may involve more complexity with installation and