Water standing in the yard can be a sign of a SLAB LEAK

If you have decided that watering your grass in the summer is not for you, your grass may brown, and may not grow as fast.  Not always a bad thing.  If, however, one day you notice that your grass is greener than it was the day before, there has been no rain, and you do not suspect someone is sneaking onto your yard while you are at work and watering the grass for you.  You may have a leak under your slab.  Once a pipe breaks under your slab, the water sprays out all day and all night.  You may not notice a drop in water pressure.  You may not hear any noise in your home.  Simply green grass can be the first sign of a leak under your slab.  By checking your water meter, you can tell if you should call someone to get even more information.  If you are not comfortable taking the lid off of you water meter, cal the water company.  They don't want you wasting water any more than you want to waste it.  They won't help you find the problem, most likely, but that will be able to tell you if the meter is running non-stop.  If it is, and you don't think you are using any water, check toilets, sinks, hose bibs, and ice makers.  No leaks on any of those?  Try turning off the water at a shut off inside your home.  Don't know where it is?  You should in case of an emergency.  Shut it off, and take another look at the meter.  If it is spinning with the valve shut off, your leak is likely on the service line into your home.  If the meter stops, then the leak is likely on a water supply line to a fixture or appliance in your home.  In either case, call company that specializes in slab leaks.  Make sure they do a lot of them, and are confident they can do them well.  Almost all plumbers want to do the work, but one the specializes in slabs will be the most accurate, can make the smallest hole in your home, and can keep the price down because they are not worried about breaking 2 or 3 holes when they can't find the leak the firsts time.

http://www.unitedleak.com/
United Leak on Twitter
Slab Leak Detection Blog