Where does all the water go? According to the Environmental Protection Agency (EPA), in a typical wetland environment,36%of the water is outflow;50%is seepage;8%evaporates; and6%remains as water volume in the ecosystem (Reference: United States Environmental Protection Agency Case Studies Report 832-R-93-005). Chloride compounds as residuals from residential areas are a problem for wetlands. Suppose that in a particular wetland environment the following concentrations (mg/l) of chloride compounds were found: outflow,55.3; seepage,75.5; remaining due to evaporation,34.9; in the water volume,48.5.