What is best to use for cooking–hot or cold tap water?
A. It is best to use cold water. Hot water can contain rust, copper and lead or other impurities from your household plumbing because these contaminants dissolve more quickly into hot water than into cold water. Q. In towns and cities, what is the major cause of pollution of drinking water sources? A. The major source of pollution in towns and cities is rainwater that flows into street catch basins (called urban runoff or stormwater runoff). While the rainwater alone is not necessarily harmful, it frequently carries untreated waste products from our streets and yards directly to rivers, lakes, and streams–our drinking water sources. Q. What causes water mains to break? A. Adverse weather conditions, and drastic changes in temperature can create havoc with water mains and cause main breaks. You can usually tell when a main break has happened because water is bubbling up from the ground. Sometimes breaks are less noticeable and may only be detected by a loss of water pressure. Middlesex