Underground plumbing problems can be difficult to locate but start by looking for unusual moisture seeping to the surface in and around your property. Be sure to look in any crawlspaces you have as well. It's a good idea to fix the leak sooner rather than later. It may only be costing you a small increase on your water bill today. However, tomorrow, you'll also have to take care of the repercussions caused by the water damage.
Watch out for mold
Water leaks are a leading contributor to many indoor air quality issues. Indoor air quality problems can result from excessive moisture. Issues, such as mold, can occur if the source, such as a water leak, is not addressed. Mold control is a moisture control issue. If moisture is not present, mold spores will not grow. By controlling the moisture indoors, you can prevent or control the mold growth as well.
Leaky faucets can waste thousands of gallons of water each year. Fixing them will save you money and valuable resources. Some leaks aren't so obvious and may only show up on your water bill. If you're not sure you have a leak, check the water meter before and after a two-hour period when no water is being used. If the meter has changed, you probably have a leak.