The Waterbury Water Department supplies on average 14 million gallons of drinking water per day to more than 125,000 people in Waterbury, Watertown, Prospect and Wolcott with almost 400 miles of water main and more than 26,000 water service connections. Drinking water is sampled daily with more than 100 Ct. DPH approved compliance sampling sites throughout the distribution system. Water is tested in compliant laboratories to ensure that all standards of water quality are being met or exceeded as set forth by the Ct. DPH and Federal EPA regulations.