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The source of supply
for all our customers in both Delaware and Pennsylvania is surface water.
In Delaware, United Water customers receive most of their water from the Stanton Water Treatment Plant, which is capable of treating 30 million gallons of water per day. The Stanton Plant is a state-of-the-art facility, which draws water from the White Clay and Red Clay creeks. It is among a premier group of surface water facilities in the United States utilizing a very particular upflow clarification process along with the standard multimedia filtration process. Sodium hypochlorite is the main disinfectant used in the water purification process. Sodium hypochlorite's lasting effect as a disinfectant in the water distribution system also protects against contamination that could occur after water leaves the treatment facility. United Water Delaware's Christiana Plant provides some water to our southern distribution system in Delaware. The Christiana Water Treatment Plant uses conventional treatment, multimedia filtration and Sodium Hypochlorite to disinfect surface water from the Christina River. Fluoride is added at both treatment facilities and levels fall between 0.8 mg/l and 1.2 mg/l. Water purchased from Chester Water Authority provides most of the water for our Pennsylvania customers and a small portion to our Delaware customers near the PA state line. Chester Water Authority's treatment facility is a filtration plant that receives water from the Octoraro Reservoir and chloramine is used as the main disinfecting agent. Other
Sources We believe it's important for our customers to understand how we treat their water. As a result, our Stanton treatment facility is available by appointment only for tours. For more information, just call UWDE at 302 633 5900, UWBethel at 610 497 8886 or e-mail at uwde@unitedwater.com. 
Our United Water team works hard to provide you and your family with top quality water and premier service 24 hours a day, 365 days a year. We take great pride in our ability to provide you with drinking water that tastes great and which meets or surpasses federal and state standards for safe drinking water. Our team of water quality professionals constantly monitors the quality of your drinking water -- before and after it is pumped to your home or business. Our goal is to provide you with high quality water all the time. Testing is performed at our United Water laboratory and at contract laboratories. The UWDE laboratory is certified and inspected by the State of Delaware. Our contract laboratories are also certified. We perform over 100 tests each month for bacteria. These samples are taken at representative points throughout the water system. A certified laboratory also analyzes for volatile organic chemicals, heavy metals, radionuclides, pesticides, herbicides, temperature and pH. If problems are found, we isolate the water source until we are certain it is safe. Substances
Expected in Drinking Water What follows are some examples of the contaminants that may be present in our source water: microbial contaminants, such as viruses and bacteria; inorganic contaminants, such as salts and metals; pesticides and herbicides; organic chemical contaminants, including synthetic and volatile organic chemicals; and radioactive contaminants. Keep in mind, the EPA sets regulations that limit the amount of certain contaminants in water. Therefore, drinking water in the United States is among the most regulated and safest in the world. Health
Note Some people may be more vulnerable to contaminants in drinking water than the general population. Immuno-compromised persons such as persons with cancer undergoing chemotherapy, persons who have undergone organ transplants, people with HIV/AIDS or other immune system disorders, some elderly, and infants can be particularly at risk from infections. These people should seek advice about drinking water from their health care providers. EPA/CDC (Center for Disease Control) guidelines on appropriate means to lessen the risk of infection by Cryptosporidium and other microbial contaminants are available from the Safe Drinking Water Hotline 800 426 4791. For more information customers may call the Delaware Office of Drinking Water 302 739 5410 or the Pennsylvania Department of Environmental Protection 610 832 6059. In addition, you can write to United Water at P.O. Box 6508, Wilmington, Delaware 19804 or email us at uwde@unitedwater.com. If you have questions about drinking water as it relates to your personal health, you may also contact your health care provider.  Water Quality Report Consumer Confidence Report To view or print, please download the free Adobe Acrobat Reader.
For more important information about water quality e-mail us at uwde@unitedwater.com or visit these sites: American Water Works Association U.S. Environmental Protection
Agency State of Delaware Delaware Public Service Commission State of Delaware Department
of Natural Resources & Environmental Control
State of Delaware Source Water Program State of Delaware Health and
Social Services State
of Delaware Office of Drinking Water Water
Resources Agency at the University of Delaware State
of Pennsylvania Pennsylvania
Public Utility Commission Pennsylvania
Department of Conservation and Natural Resources Pennsylvania
Department of Environmental Protection Pennsylvania
One Call System, Inc. Delaware
River Basin Commission H2OUSE
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