Some products which normally adhere to the inside of water mains occasionally break free when a fire hydrant is opened or a valve is operated. These products may cause water to appear cloudy or dirty. Water main repair or construction can also cause this temporary inconvenience. If the condition occurs at your address, allow the cold-water tap to run (approximately 5 minutes) until the water clears. If the condition persists, call Public Works at 512-401-5550 or email us, and a technician will be dispatched.