1,4-Dichlorobenzene in Marathon Florida Water

Unhealthy Levels of 1,4-Dichlorobenzene in the Water Supply of Marathon Florida Homes

1,4-Dichlorobenzene is a synthetic chemical that can sometimes be found in drinking water and becomes a concern when concentrations are high. Also called p-Dichlorobenzene, many homeowners first notice it by a sharp, mothball-like smell rather than by name. Because the odor and water quality can affect everyday tasks, families in Marathon often choose to treat water where it enters the house so showers, laundry and dishes aren’t impacted. A whole-house filter protects every tap and helps reduce exposure during routine use.

This chemical has been used in products like moth repellents and deodorant blocks, and it can get into water through industrial handling, disposal, or contaminated runoff and groundwater. It doesn’t always break down quickly, so even clear-looking water can emit an unpleasant odor—especially in hot showers or when multiple fixtures run. In Marathon and the broader Monroe County area, whether you’re on municipal supply or a private well or cistern, testing is the first step to confirm if 1,4-Dichlorobenzene (p-Dichlorobenzene) is present and to determine the best treatment plan.