Which of the following is a consequence of high levels of bacterial regrowth in stored water?

High levels of bacterial regrowth in stored water can lead to potential health risks. When bacteria proliferate in water, they can indicate contamination or the presence of pathogens that could cause illness. This regrowth can compromise water quality and safety, making it unsafe for human consumption. Pathogenic bacteria can lead to gastrointestinal issues, infections, and other serious health problems.

In contrast, the other options do not align with the implications of bacterial regrowth. Increased water clarity is typically associated with reduced bacteria levels, rather than high levels. Enhanced taste could be more associated with the right balance of minerals or treatment processes, and not with bacterial growth. Lastly, high bacterial levels would often necessitate increased chemical treatment to manage the contamination, rather than a reduction in chemical use. Thus, the most accurate consequence of high levels of bacterial regrowth in stored water is indeed the potential health risks it poses.