Certain things can affect the flavor, odor, and appearance of your tap water, not all of them are necessarily harmful.
Many people with public water can taste the chlorine, although the most noticeable problems tend to come from private wells. Contaminants like sulfur can impact the smell, while iron will cause discoloration and staining.
The overall amount of total dissolved solids (TDS) in your tap water will definitely affect the taste, smell, and appearance. While many of these issues are not serious concerns, they can certainly be a nuisance. Water filtration systems, including a high-efficiency water softener to reduce hardness, can provide solutions.