Odd taste, coloration or smell can indicate the presence of contaminants.
Homes built before 1986 are more likely to have lead plumbing and fixtures that can leach into tap water.
Because private well water is not monitored by testing at a treatment facility, the EPA recommends testing twice a year.
Stains in sinks and around fixtures can indicate the presence of iron, copper and other minerals.
Monitor news reports and TBD websites to learn of contamination outbreaks in your area.
Water quality is constantly changing. Regular retesting recommended.