Open the hose bib to relieve pressure and water flow at the leak. If you have a leak inside your house, look under the sinks or toilets for a shut off valve. The shut off valve will stop the water to only that area and will not affect the rest of the house. If a shutoff valve cannot be located or is stuck, then shut off the water to the entire house at the house valve, located by the front hose bib.
If you are unable to shut the water off, call Azusa Light & Water at (626) 812-5225 and we will shut the water off at the meter.