Which of the following is not considered a satisfactory solution to the problem of chemical contamination in well systems?

Boiling water does not effectively eliminate all chemical contaminants present in well water. While boiling can kill pathogenic microorganisms, it does not remove chemicals such as nitrates, heavy metals, or volatile organic compounds. These contaminants require specific removal methods, such as filtering or chemical treatment, to ensure the water is safe for consumption.

On the other hand, abandoning the well, connecting to a public water system, or constructing a new well with proper techniques address the issue of chemical contamination more effectively. Abandonment removes the source of contamination, connecting to a public water supply usually guarantees water quality compliance, and building a new well can be designed to avoid contamination if done correctly. Thus, boiling the water fails to adequately address the root problem of chemical contamination, making it the least satisfactory solution.